The pipe ramming method involves using a pneumatic hammer to install an open-ended steel casing to replace or install culverts and pipes in a trenchless manner. It can install casings through various soil conditions including free-flowing sand, cobble, rock, and groundwater. The hammer pushes and compacts soil ahead of the casing to swallow obstructions. For longer distances, a telescoping method uses progressively smaller casings installed within larger casing sections. The method reduces surface impacts compared to open trenching.
This document provides an overview of tunnel boring machines (TBMs). It discusses that TBMs were first invented in 1863 and are also known as "moles" as they excavate tunnels with a circular cross-section. There are two main types of TBMs - hard rock TBMs and soft rock TBMs. The document then goes into detail about the construction, operation, advantages and disadvantages of TBMs. It explains the two main phases of a TBM - the tunneling phase which involves cutting through rock/soil, and the ring building phase which constructs supporting structures behind the TBM.
Tunnel boring machines (TBMs) are used to excavate tunnels with a circular cross-section through various ground conditions ranging from soft ground to hard rock. TBMs can bore tunnels continuously with minimal ground disturbance compared to traditional drilling and blasting methods. Modern TBMs function as a single, self-contained unit that can drill, excavate soil and rock, apply concrete segmental lining, and remove spoils, making them highly efficient for tunneling projects.
This document discusses different types of drill bits and drilling methods used in mining. It covers percussive drill bits like brazed and button bits, and rotary bits like drag bits, diamond bits, and roller cone bits. It also discusses down-the-hole percussive drills and rotary drills. Down-the-hole drills are powered by compressed air and eliminate energy losses through drill rods. Rotary drills use hydraulic motors and cylinders and are used for larger diameter holes in surface and underground mines. The principal drilling methods are mechanical with static or dynamic force, while some alternative methods use heat, water, or electricity in specific situations.
This document provides an overview of various types of construction equipment, including their classification and uses. It discusses earth moving equipment such as power shovels, backhoes, draglines, and clam shells. Factors affecting the selection of different earth moving equipment are outlined. Other equipment covered include motor graders, scrapers, bull dozers, tractors, rollers, pile driving equipment, and their applications in construction projects. Diagrams and pictures are included to illustrate the components and operation of the major earth moving machinery.
The document discusses tunnel boring machines (TBMs) and their use in tunnel construction. It describes some of the key components of a TBM, including the tunnel lining process using precast concrete segments. It also discusses the importance of surveying activities to guide TBM operations and transfer control stations. Geotechnical considerations like rock quality designation are important for TBM tunneling. The main types of TBMs covered are slurry shield and earth pressure balance machines. Annulus grouts and mortars are also discussed for bonding segments and preventing issues during tunneling.
1) Tunnel boring machines (TBMs) are used to excavate tunnels with a circular cross-section through various ground types and diameters ranging from 1-20 meters.
2) A TBM consists of one or two large metal cylinder shields at the front, fitted with a cutting wheel, and hydraulic jacks that push the machine forward as it removes material.
3) TBMs allow for safer, more consistent tunneling compared to conventional methods and reduce risks from manual labor or explosives, though they require more supporting infrastructure and have higher costs.
Raise boring,organisation of shaft sinking,liningSafdar Ali
This document discusses raise boring, which is a shaft sinking operation used for excavating vertical shafts through rock. It describes the equipment used, including the rig, drill pipes, cutters, and transport system. The main purposes of raise boring are for ore passes, ventilation, and full-sized mining shafts. It has advantages like reducing costs and allowing continuous excavation without workers present underground. Operations involve drilling a pilot hole then attaching a reamer to the drill to pull it upwards and excavate the shaft while cuttings fall down. Key factors like rock conditions, size, power needs, and costs are considered in the design.
This document provides an overview of drilling operations for oil wells. It discusses the key components and systems involved in rotary drilling, including the hoisting system (derrick, blocks, drawworks), rotating system (swivel, kelly, rotary table, drill pipe), and circulating system. The hoisting system is used to lift and lower the drill pipe. The rotating system transmits torque from the surface to turn the drill bit. Together these systems allow a drilling rig to drill holes miles deep into the earth to explore for oil and gas.
This document provides an overview of tunnel boring machines (TBMs). It discusses that TBMs were first invented in 1863 and are also known as "moles" as they excavate tunnels with a circular cross-section. There are two main types of TBMs - hard rock TBMs and soft rock TBMs. The document then goes into detail about the construction, operation, advantages and disadvantages of TBMs. It explains the two main phases of a TBM - the tunneling phase which involves cutting through rock/soil, and the ring building phase which constructs supporting structures behind the TBM.
Tunnel boring machines (TBMs) are used to excavate tunnels with a circular cross-section through various ground conditions ranging from soft ground to hard rock. TBMs can bore tunnels continuously with minimal ground disturbance compared to traditional drilling and blasting methods. Modern TBMs function as a single, self-contained unit that can drill, excavate soil and rock, apply concrete segmental lining, and remove spoils, making them highly efficient for tunneling projects.
This document discusses different types of drill bits and drilling methods used in mining. It covers percussive drill bits like brazed and button bits, and rotary bits like drag bits, diamond bits, and roller cone bits. It also discusses down-the-hole percussive drills and rotary drills. Down-the-hole drills are powered by compressed air and eliminate energy losses through drill rods. Rotary drills use hydraulic motors and cylinders and are used for larger diameter holes in surface and underground mines. The principal drilling methods are mechanical with static or dynamic force, while some alternative methods use heat, water, or electricity in specific situations.
This document provides an overview of various types of construction equipment, including their classification and uses. It discusses earth moving equipment such as power shovels, backhoes, draglines, and clam shells. Factors affecting the selection of different earth moving equipment are outlined. Other equipment covered include motor graders, scrapers, bull dozers, tractors, rollers, pile driving equipment, and their applications in construction projects. Diagrams and pictures are included to illustrate the components and operation of the major earth moving machinery.
The document discusses tunnel boring machines (TBMs) and their use in tunnel construction. It describes some of the key components of a TBM, including the tunnel lining process using precast concrete segments. It also discusses the importance of surveying activities to guide TBM operations and transfer control stations. Geotechnical considerations like rock quality designation are important for TBM tunneling. The main types of TBMs covered are slurry shield and earth pressure balance machines. Annulus grouts and mortars are also discussed for bonding segments and preventing issues during tunneling.
1) Tunnel boring machines (TBMs) are used to excavate tunnels with a circular cross-section through various ground types and diameters ranging from 1-20 meters.
2) A TBM consists of one or two large metal cylinder shields at the front, fitted with a cutting wheel, and hydraulic jacks that push the machine forward as it removes material.
3) TBMs allow for safer, more consistent tunneling compared to conventional methods and reduce risks from manual labor or explosives, though they require more supporting infrastructure and have higher costs.
Raise boring,organisation of shaft sinking,liningSafdar Ali
This document discusses raise boring, which is a shaft sinking operation used for excavating vertical shafts through rock. It describes the equipment used, including the rig, drill pipes, cutters, and transport system. The main purposes of raise boring are for ore passes, ventilation, and full-sized mining shafts. It has advantages like reducing costs and allowing continuous excavation without workers present underground. Operations involve drilling a pilot hole then attaching a reamer to the drill to pull it upwards and excavate the shaft while cuttings fall down. Key factors like rock conditions, size, power needs, and costs are considered in the design.
This document provides an overview of drilling operations for oil wells. It discusses the key components and systems involved in rotary drilling, including the hoisting system (derrick, blocks, drawworks), rotating system (swivel, kelly, rotary table, drill pipe), and circulating system. The hoisting system is used to lift and lower the drill pipe. The rotating system transmits torque from the surface to turn the drill bit. Together these systems allow a drilling rig to drill holes miles deep into the earth to explore for oil and gas.
This document discusses drilling equipment used on oil and gas rigs. It describes major components including the rig itself, which is the machine used to drill wellbores. Key components of rigs include mud tanks, mud pumps, the derrick or mast, drawworks, rotary table or topdrive, drillstring, and power generation equipment. Other important drilling equipment discussed include the travelling block, crown block, hook, and drilling line which are used for hoisting and rotating drill pipe and other tools. Safety equipment like blowout preventers are also mentioned. Different types of rigs such as land, jackup, drillship, semisubmersible, and submersible rigs are shown.
The document provides an overview of tunnel boring machines (TBMs) and their use for mechanized tunnel construction. It discusses various TBM types including gripper TBMs used for hard rock, slurry shields that use pressurized bentonite for ground support, and earth pressure balance machines that regulate soil pressure to support the tunnel face. The advantages and limitations of each type are presented for different ground conditions. Images and diagrams are included to illustrate the components and functions of the various TBMs.
This document discusses jack hammer drills and down-the-hole drilling. It describes the working principles of jack hammer drills, which use compressed air to power a hammer that rapidly pounds a drill bit into rock. It also discusses down-the-hole drilling where the hammer is located directly behind the drill bit to allow for deeper percussion drilling without energy loss through joints. The document outlines the components, operating principles, and uses of jack hammer drills and down-the-hole drilling for applications like mining, construction, and geothermal drilling.
The document discusses drilling and blasting techniques used in mining and construction. It introduces drilling as a necessary process for loosening hard rock before excavation by filling holes with explosives. Various drilling methods and equipment are described, including jackhammers, drifters, wagon drills, and diamond drills. Factors in selecting a drilling method include rock hardness, depth, terrain, and project size. Blasting terminology and methods such as controlled, primary, and electrical blasting are also outlined. Precautions for blasting include failure prevention, water seepage, skilled supervision, and maintaining safe distances.
Drilling methods are used in construction and mining to drill holes in rock and earth. There are various types of drilling including rotary, percussion, and rotary-percussion. Rotary drilling uses rotation to cut holes while percussion drilling uses repeated impact force. Different drilling methods and equipment are suited to different applications depending on factors like the rock properties and depth of drilling required. Common drilling equipment includes jackhammers, stopers, drifters, and wagon drills which can be powered pneumatically, hydraulically, or electrically.
This document provides an overview of various types of construction equipment, including their classification and uses. It discusses earth moving equipment such as power shovels, backhoes, draglines, and clam shells. It also covers compacting equipment like smooth wheel rollers, sheep-foot rollers, and pneumatic tired rollers. Additional equipment covered include pile driving rigs and their uses in transferring surface loads into the ground. The document aims to classify and explain the purpose and functioning of many important pieces of machinery used in construction projects.
A brief overview of drilling and blasting process for tunnel excavation used ...kimilsungLimbu
The document describes the Supermadi Hydroelectric Project located in Nepal. It has an installed capacity of 44 MW and utilizes the flow of the Madi River. Key project features include an intake weir, two underground settling basins, a 5.9 km headrace tunnel, a surge tank, and a 1.38 km penstock feeding three Pelton turbines in the powerhouse. The document also discusses the internship tasks performed by students including site visits, drawing reviews, and tunnel construction observations like the drilling, blasting, mucking, and rock support installation cycle.
Trenchless technology involves installing underground pipes, cables, and ducts without excavation by using techniques like horizontal directional drilling, microtunneling, pipe bursting, and pipe ramming. It has two main applications - new installation of lines and rehabilitation/renovation of existing lines. Proper surveys and investigations are needed before using trenchless methods. In India, common trenchless techniques include directional drilling, ramming, moling, and auger boring. Trenchless technology is needed due to problems with conventional trenching and its advantages in urban areas. With increasing infrastructure needs, trenchless methods provide cost-effective solutions while minimizing environmental and social impacts.
The document discusses various topics related to firefighting water systems including:
1. Types of sprinkler systems such as wet, dry, pre-action, deluge, and anti-freeze systems. It also discusses standpipe systems.
2. Components of sprinkler systems such as tanks, pumps, control valves, and sprinkler heads.
3. Characteristics of sprinkler systems such as temperature ratings, K-factors, installation orientations, and sprinkler response types.
National fire codes and standards from NFPA that relate to sprinkler system design and installation are also referenced.
A tunnel boring machine (TBM) excavates tunnels with a circular cross section through a variety of soil and rock strata. TBMs can bore through varying ground conditions including soft ground, mixed face conditions and hard rock. The document discusses different tunnel construction methods such as drill-and-blast, TBMs, cut-and-cover and immersed tunnels. It also describes the various processes involved in tunnel boring including drilling, excavation, muck removal, ground treatment and tunnel lining. Selection of the appropriate construction method depends on geological conditions, tunnel dimensions, construction timelines and other factors.
Drilling and blasting involves different types of drilling like rotary and percussive drilling. Rotary drilling uses tricone bits and drag bits while percussive uses hammers. Factors like burden, spacing, stemming affect blast design. Explosives like TNT, dynamite and safety fuses are used. Blasted rocks undergo processes like radial cracking and flexural rupture. Controlled blasting techniques like presplitting and cushion blasting reduce overbreak. Explosives have risks but when used properly can efficiently fracture rocks for excavation.
pipe one of the main article that is used in our daily life.its being manufactured and used in industries in large scale. because of its large application and uses they are being manufactured in varies levels and types
This document provides an overview of blasting and explosives used in mining. It discusses blasting accessories like detonators and initiating systems that can be electric or non-electric. The properties of explosives that impact fragmentation, displacement and vibrations are outlined. Electric detonators utilize electric energy to heat a connecting bridge wire, while electronic detonators use a microchip. Non-electric systems transmit initiation through plastic tubing. Common blasting patterns like row-by-row and V-formation are also mentioned.
Tunnel ventilation ppt tunnel asia 2013Hitesh Khanna
THis presentation deals with Tunnel Ventilation concepts, with special reference to T80, India's longest transportation tunnel across Pir Panjal range, connecting Jammu region to Kashmir valley
Pipe jacking is a trenchless construction technique where pipes are pushed through the ground behind a shield using hydraulic jacks. Pipes ranging from 150mm to 3000mm can be installed in straight lines or curves. As the pipes are jacked forward, excavation simultaneously occurs within the shield. Common applications include installing sewer, water, gas, and electrical utilities with minimal surface disruption. Pipe jacking provides a flexible, watertight finished pipeline and can install pipes over long distances without theoretical length limits. It offers safety, environmental, and technical benefits compared to open cut trenching or segmental tunneling.
The document summarizes various types of construction equipment used in building projects. It describes equipment categories like electric hand tools, vibrators, pumps, compactors, mixers and rollers. Specific tools are explained in detail, including saws, drills, jackhammers and nail guns. Advantages of equipment use include increased speed and quality of construction, while disadvantages include risks of delays from breakdowns. Proper equipment selection depends on the type and size of the project.
A study into the feasibility of application of longwall top coal caving (ltc...nasina balasubrahmayam
Longwall Top coal Caving is going to be the significant method of thick seam mining at higher depths in India. Limiting depth of present opencast mining is about 300m. In this paper concepts of LTCC were discussed for Indian application.
Progressive pigging involves four phases - foam, chemical, urethane, and specialty pigs - to clean pipelines of debris and restore optimal flow. Foam pigs provide a visual inspection of pipeline conditions. Chemical pigs inject chemicals to loosen debris for removal. Urethane pigs have aggressive features like brushes and discs to disrupt and remove debris. Specialty pigs employ unique mechanisms for tough conditions like corrosion deposits. The phased approach simplifies pipeline cleaning to mitigate flow reductions and pressure increases from debris that impact operational costs and safety.
This document lists case studies of pneumatic pipe bursting projects from locations around the world, including MCAS Air Force Base in Yuma, Arizona; Plano, Texas; and Green Bay, Wisconsin. It provides information on the project details, footage of pipe replaced, and equipment used for each location. The list of case studies spans various cities and countries across North America, the Middle East, India, and others.
This document describes static pipe bursting projects in various locations around the world. It lists the project location, product/footage installed, and equipment used for each project. Locations include France, Florida, Mexico, Switzerland, Wisconsin, Washington, Qatar, Australia, China, Ukraine, Minnesota, Texas, Montana, New York, Ontario, Michigan, Saudi Arabia, New Mexico, Wisconsin, Minnesota, New York City, and Wisconsin.
This document discusses drilling equipment used on oil and gas rigs. It describes major components including the rig itself, which is the machine used to drill wellbores. Key components of rigs include mud tanks, mud pumps, the derrick or mast, drawworks, rotary table or topdrive, drillstring, and power generation equipment. Other important drilling equipment discussed include the travelling block, crown block, hook, and drilling line which are used for hoisting and rotating drill pipe and other tools. Safety equipment like blowout preventers are also mentioned. Different types of rigs such as land, jackup, drillship, semisubmersible, and submersible rigs are shown.
The document provides an overview of tunnel boring machines (TBMs) and their use for mechanized tunnel construction. It discusses various TBM types including gripper TBMs used for hard rock, slurry shields that use pressurized bentonite for ground support, and earth pressure balance machines that regulate soil pressure to support the tunnel face. The advantages and limitations of each type are presented for different ground conditions. Images and diagrams are included to illustrate the components and functions of the various TBMs.
This document discusses jack hammer drills and down-the-hole drilling. It describes the working principles of jack hammer drills, which use compressed air to power a hammer that rapidly pounds a drill bit into rock. It also discusses down-the-hole drilling where the hammer is located directly behind the drill bit to allow for deeper percussion drilling without energy loss through joints. The document outlines the components, operating principles, and uses of jack hammer drills and down-the-hole drilling for applications like mining, construction, and geothermal drilling.
The document discusses drilling and blasting techniques used in mining and construction. It introduces drilling as a necessary process for loosening hard rock before excavation by filling holes with explosives. Various drilling methods and equipment are described, including jackhammers, drifters, wagon drills, and diamond drills. Factors in selecting a drilling method include rock hardness, depth, terrain, and project size. Blasting terminology and methods such as controlled, primary, and electrical blasting are also outlined. Precautions for blasting include failure prevention, water seepage, skilled supervision, and maintaining safe distances.
Drilling methods are used in construction and mining to drill holes in rock and earth. There are various types of drilling including rotary, percussion, and rotary-percussion. Rotary drilling uses rotation to cut holes while percussion drilling uses repeated impact force. Different drilling methods and equipment are suited to different applications depending on factors like the rock properties and depth of drilling required. Common drilling equipment includes jackhammers, stopers, drifters, and wagon drills which can be powered pneumatically, hydraulically, or electrically.
This document provides an overview of various types of construction equipment, including their classification and uses. It discusses earth moving equipment such as power shovels, backhoes, draglines, and clam shells. It also covers compacting equipment like smooth wheel rollers, sheep-foot rollers, and pneumatic tired rollers. Additional equipment covered include pile driving rigs and their uses in transferring surface loads into the ground. The document aims to classify and explain the purpose and functioning of many important pieces of machinery used in construction projects.
A brief overview of drilling and blasting process for tunnel excavation used ...kimilsungLimbu
The document describes the Supermadi Hydroelectric Project located in Nepal. It has an installed capacity of 44 MW and utilizes the flow of the Madi River. Key project features include an intake weir, two underground settling basins, a 5.9 km headrace tunnel, a surge tank, and a 1.38 km penstock feeding three Pelton turbines in the powerhouse. The document also discusses the internship tasks performed by students including site visits, drawing reviews, and tunnel construction observations like the drilling, blasting, mucking, and rock support installation cycle.
Trenchless technology involves installing underground pipes, cables, and ducts without excavation by using techniques like horizontal directional drilling, microtunneling, pipe bursting, and pipe ramming. It has two main applications - new installation of lines and rehabilitation/renovation of existing lines. Proper surveys and investigations are needed before using trenchless methods. In India, common trenchless techniques include directional drilling, ramming, moling, and auger boring. Trenchless technology is needed due to problems with conventional trenching and its advantages in urban areas. With increasing infrastructure needs, trenchless methods provide cost-effective solutions while minimizing environmental and social impacts.
The document discusses various topics related to firefighting water systems including:
1. Types of sprinkler systems such as wet, dry, pre-action, deluge, and anti-freeze systems. It also discusses standpipe systems.
2. Components of sprinkler systems such as tanks, pumps, control valves, and sprinkler heads.
3. Characteristics of sprinkler systems such as temperature ratings, K-factors, installation orientations, and sprinkler response types.
National fire codes and standards from NFPA that relate to sprinkler system design and installation are also referenced.
A tunnel boring machine (TBM) excavates tunnels with a circular cross section through a variety of soil and rock strata. TBMs can bore through varying ground conditions including soft ground, mixed face conditions and hard rock. The document discusses different tunnel construction methods such as drill-and-blast, TBMs, cut-and-cover and immersed tunnels. It also describes the various processes involved in tunnel boring including drilling, excavation, muck removal, ground treatment and tunnel lining. Selection of the appropriate construction method depends on geological conditions, tunnel dimensions, construction timelines and other factors.
Drilling and blasting involves different types of drilling like rotary and percussive drilling. Rotary drilling uses tricone bits and drag bits while percussive uses hammers. Factors like burden, spacing, stemming affect blast design. Explosives like TNT, dynamite and safety fuses are used. Blasted rocks undergo processes like radial cracking and flexural rupture. Controlled blasting techniques like presplitting and cushion blasting reduce overbreak. Explosives have risks but when used properly can efficiently fracture rocks for excavation.
pipe one of the main article that is used in our daily life.its being manufactured and used in industries in large scale. because of its large application and uses they are being manufactured in varies levels and types
This document provides an overview of blasting and explosives used in mining. It discusses blasting accessories like detonators and initiating systems that can be electric or non-electric. The properties of explosives that impact fragmentation, displacement and vibrations are outlined. Electric detonators utilize electric energy to heat a connecting bridge wire, while electronic detonators use a microchip. Non-electric systems transmit initiation through plastic tubing. Common blasting patterns like row-by-row and V-formation are also mentioned.
Tunnel ventilation ppt tunnel asia 2013Hitesh Khanna
THis presentation deals with Tunnel Ventilation concepts, with special reference to T80, India's longest transportation tunnel across Pir Panjal range, connecting Jammu region to Kashmir valley
Pipe jacking is a trenchless construction technique where pipes are pushed through the ground behind a shield using hydraulic jacks. Pipes ranging from 150mm to 3000mm can be installed in straight lines or curves. As the pipes are jacked forward, excavation simultaneously occurs within the shield. Common applications include installing sewer, water, gas, and electrical utilities with minimal surface disruption. Pipe jacking provides a flexible, watertight finished pipeline and can install pipes over long distances without theoretical length limits. It offers safety, environmental, and technical benefits compared to open cut trenching or segmental tunneling.
The document summarizes various types of construction equipment used in building projects. It describes equipment categories like electric hand tools, vibrators, pumps, compactors, mixers and rollers. Specific tools are explained in detail, including saws, drills, jackhammers and nail guns. Advantages of equipment use include increased speed and quality of construction, while disadvantages include risks of delays from breakdowns. Proper equipment selection depends on the type and size of the project.
A study into the feasibility of application of longwall top coal caving (ltc...nasina balasubrahmayam
Longwall Top coal Caving is going to be the significant method of thick seam mining at higher depths in India. Limiting depth of present opencast mining is about 300m. In this paper concepts of LTCC were discussed for Indian application.
Progressive pigging involves four phases - foam, chemical, urethane, and specialty pigs - to clean pipelines of debris and restore optimal flow. Foam pigs provide a visual inspection of pipeline conditions. Chemical pigs inject chemicals to loosen debris for removal. Urethane pigs have aggressive features like brushes and discs to disrupt and remove debris. Specialty pigs employ unique mechanisms for tough conditions like corrosion deposits. The phased approach simplifies pipeline cleaning to mitigate flow reductions and pressure increases from debris that impact operational costs and safety.
This document lists case studies of pneumatic pipe bursting projects from locations around the world, including MCAS Air Force Base in Yuma, Arizona; Plano, Texas; and Green Bay, Wisconsin. It provides information on the project details, footage of pipe replaced, and equipment used for each location. The list of case studies spans various cities and countries across North America, the Middle East, India, and others.
This document describes static pipe bursting projects in various locations around the world. It lists the project location, product/footage installed, and equipment used for each project. Locations include France, Florida, Mexico, Switzerland, Wisconsin, Washington, Qatar, Australia, China, Ukraine, Minnesota, Texas, Montana, New York, Ontario, Michigan, Saudi Arabia, New Mexico, Wisconsin, Minnesota, New York City, and Wisconsin.
DSD-NL 2014 - Geo Klantendag - 1. leidinginstallatie met direct pipeDeltares
A.Hak Drillcon uses a Direct Pipe technique for trenchless pipeline installations. This involves using a modified microtunneling machine to install pipe by pushing or pulling it through the ground while simultaneously excavating the soil. The document discusses the Direct Pipe principle, total installation package, tunnel boring machine components and operation, early industry perceptions of the technique, measurement and control systems used, typical jobsite setup, engineering considerations, and references several pipeline installation projects completed using this method. It notes the technique has proven installation forces are typically closer to horizontal directional drilling than traditional microtunneling.
The document discusses factors that affect soil compaction, including water content, amount of compaction effort, soil type, compaction method, layer thickness, saturation level, and additions like lime or cement. Higher water content and compaction effort increase compaction. Coarse soils compact more than fine soils. Common compaction methods include rolling, ramming, and vibratory techniques. Rollers, rammers, and vibratory plates are described. The factors that determine the effectiveness of each method are also outlined.
The document summarizes the Casselberry, Florida pipe bursting project that replaced 35 miles of asbestos cement (AC) water pipes. Some key points:
- The project received over $10 million in funding to replace the aging AC pipe network in a more sustainable way than open-cut replacement.
- Pipe bursting was used to install new HDPE pipes with minimal disruption to residents. It allowed replacing large sections of pipe per day with almost no excavation.
- Air monitoring during the project found asbestos fiber levels below OSHA limits, indicating little risk from the pipe bursting process. However, EPA views it as subject to asbestos regulations.
- The project provided a case study for research on
This document discusses several project considerations for pipe bursting projects, including:
- What types of pipes can be burst (fracturable like clay vs non-fracturable like steel)
- Factors like soil conditions, depth of existing line, length of burst, new pipe material selection, and current video of the existing line.
- It also addresses common questions around bursting and notes pneumatic, static, impactor and compact are different bursting system options.
This document discusses various types of compaction equipment used in road construction. It describes road rollers, sheepsfoot rollers, pneumatic tyred rollers, vibratory rollers, and frog rammers. Road rollers are used to compact earthworks, soil stabilization, granular bases, and asphalt surfaces. Sheepsfoot rollers are suitable for compacting cohesive soils, especially when moisture content is high. Pneumatic tyred rollers are used to compact non-plastic silts and silty soils. Vibratory rollers can compact both cohesive and non-cohesive materials and are commonly used to compact pavement layers, subgrades, granular bases, and asphalt courses
This document summarizes a student project to design and analyze a system for charging an electric vehicle battery using the exhaust from a motorcycle. The project aims to directly convert the kinetic energy of exhaust gases into electrical power. The system would include an alternator connected to a turbine placed in the motorcycle silencer. As the exhaust gases spin the turbine, the alternator would generate electricity to charge the battery. The document outlines the objectives, components, working principle, experimental setup, advantages and applications of the system. It concludes that the project demonstrates a way to produce electricity from vehicle exhaust as a non-conventional energy source.
Compaction is the densification of soil through mechanical means such as rolling, ramming, or vibration to reduce porosity and increase dry density. Laboratory compaction tests determine the optimum water content and maximum dry density for a soil through controlled compaction and varying water content. Standard Proctor and Modified Proctor tests involve compacting soil in layers in a mold using a specified hammer weight and drop height. Field compaction equipment includes smooth drum rollers, pneumatic tired rollers, sheep-foot rollers, and rammers or vibrators. The dry density achieved depends on factors like water content, compactive effort, soil type, and additives used.
This document discusses methods for improving soil bearing capacity. It defines soil bearing capacity as the maximum pressure the soil can support without failing. Six main methods are described: increasing foundation depth, compacting the soil through surcharging, sand piles, or vibration; draining saturated soil; confining loose soils with sheet piles; grouting cracks and voids; and chemically treating soft soils. Compacting and draining are the most common and economical methods.
Soil compaction handbook_low_res_0212_data_id_59525_version_1Anil Kumar S
This document provides an overview of soil compaction. It discusses the importance of compacting soil to increase load bearing capacity and prevent issues like settlement. There are different types of compaction including vibration, impact, kneading and pressure. Proper soil compaction is important for construction projects. The document outlines factors that influence compaction like soil type, moisture content, and compaction effort used. It provides details on evaluating and testing soil compaction.
Generation of electricity using the flow or velocity of vehicle exhaust gasVel Murugan
This document discusses a project that uses the exhaust gas from an engine to rotate a generator and produce electricity. The electricity is then stored in a battery. The goals are to use turbocharging efficiently and improve engine efficiency and cost effectiveness. The generator blades capture the energy from the exhaust gas to generate power for storage. While there is additional cost and space needed, advantages include an efficient way to charge the battery and store power for other vehicle applications like lighting.
Ppt on electricity generation from exhaust hot gasesNitesh Prasad
This document presents a design for generating electricity from exhaust gases. It includes an introduction describing how pressure energy from hot gases can be converted to mechanical work to power an electrical generator. The major components are described as a backward curved turbine, electricity generator, and blower/fan, connected to a single shaft. The working involves installing the system in the exhaust to capture pressure energy from gases to rotate the shaft and generator, producing electricity while also improving engine performance and power. Advantages include low cost electricity production and improved engine output, while disadvantages are potential choking of the turbine and currently low electricity output. Applications proposed are for powering devices in vehicles and charging batteries to enhance vehicle efficiency.
The document describes a power assisted gear shifting mechanism for automobiles that aims to provide the convenience of automatic transmission without compromising power or mileage. It consists of a hydraulic circuit powered by the car's power steering pump to shift gears via buttons on the dashboard. The mechanism was designed with a hydraulic circuit, electronic circuit to control solenoid valves, and mechanical components like a spring. It allows for easy gear changes while increasing legroom and providing an alternative to costly automatic transmissions. Further development is still needed to implement it in real cars.
This document provides information on various metal casting processes. It discusses the history of casting and defines the basic casting process as pouring liquid metal into a mold to solidify. It describes the main features of casting like molds, risers, gates, and cores. It categorizes casting processes as open mold or closed mold casting. It further classifies casting into expandable mold casting like sand casting and investment casting, and permanent mold casting like die casting and centrifugal casting. For each process, it provides details on the mold material, advantages, disadvantages and recommended applications. It emphasizes the importance of selecting the right casting process based on the alloy, shape, tolerance and cost requirements of the final part.
The document discusses the process of sand casting. It begins by defining foundry and casting as the process of producing metal parts by pouring molten metal into a prepared mold. It then provides terminology used in casting such as flask, pattern, parting line, pouring basin, sprue, runner, riser, gate, core, and chaplets. The steps of sand casting are outlined as making the pattern, preparing sand mixtures, making the mold and cores, melting metal, pouring, cleaning, inspecting, and heat treating. Common casting materials and applications are also listed.
This document provides information about soil compaction from an engineering lecture. It defines soil compaction, discusses how it increases soil strength and reduces permeability. It explains the principles of compaction including how it works by reducing air voids. A soil compaction curve is presented, defining optimum moisture content. Factors that affect compaction are listed such as soil type, compactive effort, and water content. Common compaction methods are also briefly outlined.
The document provides information about stress distribution in soil due to self-weight and surface loads. It discusses Boussinesq's formula for calculating vertical stress in soil due to a concentrated surface load. The formula shows that vertical stress is directly proportional to the load, inversely proportional to depth squared, and depends on the ratio of radius to depth. A table of coefficient values used in the formula for different ratios of radius to depth is also provided.
This document provides an overview of various types of construction equipment used in large construction projects. It discusses earthmoving equipment like power shovels, backhoes, draglines, clamshells and scrapers that are used for excavation and hauling. It also describes hauling equipment like dump trucks and dumpers. Further, it covers hoisting equipment such as cranes and conveying equipment used to transport materials. The document provides details on the working, applications and comparisons of different equipment types used widely in construction activities.
This document discusses using the pipe ramming method for installing and replacing culverts under highways and railroads. Pipe ramming involves using a pneumatic hammer to install an open-ended steel casing through the ground. It is a trenchless method that can install culverts in difficult soil conditions like areas with large rocks or flowing sand. The document provides details on how pipe ramming works, its advantages over other methods, and case studies of pipe ramming projects for installing new culverts under railroads.
This document discusses failure and safety aspects of earthen dams. It describes different types of earthen dams, including earth dams, rock-filled dams, and composite earth and rock-filled dams. It then lists several potential failure modes of earthen dams, such as foundation sliding, spreading failure, piping failure, slope protection failure, and failure due to earthquake shaking. For earthquake-induced failure specifically, it notes that cracks may develop causing leakage, piping may occur due to reservoir shaking, settlements may reduce freeboard and cause overtopping, and shear slides or liquefaction of underlying soils are also risks. The document concludes with some RTU questions related to earthen dam analysis, design, instrumentation and
Quality Connector Systems (QCS) is a leading supplier of specialty connectors for subsea pipelines. They provide innovative solutions for pipeline tie-ins, repairs, and maintenance worldwide. QCS offers stock and custom-designed connectors, including swivel flanges, misalignment connectors, piggable wyes, hot tap fittings, diverless repair clamps, and mechanical end connectors. Their products allow for pipeline repairs in deep water without manned diving and accommodate issues like misalignment, pigging, leaks, and damaged sections.
This document provides an overview of suspension bridges, including their history, components, structural analysis, and types. Some key points:
- Suspension bridges have two towers that support main cables, from which vertical suspenders hang to support the road deck.
- Early bridges used ropes or chains, but the first design was in 1595. Modern bridges use steel cables anchored into solid tower foundations.
- The main forces are tension in the cables and compression in the towers. The cables form a parabolic shape and must be anchored at both ends.
- Underspanned designs run the main cables underneath but are less stable. Modern decks are aerodynamic trusses to withstand wind forces.
-
The document summarizes a case study of two projects to install structural linings in oviform sewers for Sydney Water Corporation. For one project, an 18mm thick lining was installed in a 13m deep, 350m long oviform sewer under a busy road. This was one of the most difficult CIPP linings installed in Australia due to its thickness and single length. The second project involved concrete encasement of a deteriorated bend in addition to CIPP lining. Both projects required complex planning and execution, including sewer bypass and traffic control.
03 drilling recent development ui 17 sep 2007yudi05
This document summarizes recent developments in drilling technology, including continuous circulating systems, managed pressure drilling, dual gradient systems, casing while drilling, solid expandable tubulars, high angle/extended reach drilling, integrated hole quality monitoring, rotary steering systems, torque and drag management, and flexible rig technologies. It provides definitions, diagrams, and examples for each technology.
The three key points are:
1) The Macondo well project encountered multiple problems during drilling including hole instability, stuck pipe, and mud losses in the reservoir section.
2) When cementing the production casing string, BP used a questionable casing design and took shortcuts like using too few centralizers and pumping the cement at too low of a rate, which increased the risk of cement failure.
3) The root causes of the accident likely included a combination of factors like complacency, overemphasis on cost and schedule over safety, availability of but not applying best practices, and failure of regulators to correct issues. Shortcuts taken during critical well operations compromised well barriers.
This document discusses cast-in-place piles in seismic areas. It describes the basic installation process for continuous flight auger (CFA) and drilled displacement (DD) piles. Factors affecting pile performance are outlined, including sidewall roughness, installation effects on stresses, tip resistance mobilization, and construction control. Applications in favorable and unfavorable conditions are examined. The document concludes with a discussion of inspection issues and seismic loading considerations.
1) The document discusses two types of drainage systems: combined and separate. The combined system uses one set of pipes to convey foul and surface water together while the separate system uses two sets of pipes.
2) It provides details on good drainage practices such as using materials that are smooth, hard, and non-corrosive and laying pipes at appropriate slopes for self-cleansing flow. Joints must be air and water tight.
3) Flexible independent rubber ring joints are discussed as having advantages for push-fit assembly, ability to assemble in wet conditions without lubricants, and accommodating ground movement while preventing root penetration.
This document discusses methods for constructing underwater pipelines. It covers the fabrication of pipes, common installation techniques like S-lay and J-lay using laybarges, and other construction processes such as pre-trenching, post-trenching, free span correction, hydrostatic testing, and installing navigational aids. Pipes can be fabricated using various forming and welding methods and installed using laybarges, reel barges, or towing methods depending on water depth and project needs.
This document discusses directional drilling techniques and their applications. It begins by defining directional drilling as deflecting a wellbore in a specified direction to reach a target below the surface. It then lists several applications of directional drilling including drilling multiple wells from a single location, drilling in inaccessible locations, avoiding geological problems, sidetracking, relief well drilling, and horizontal drilling. The document also discusses directional drilling applications in mining, construction, and geothermal engineering. It provides details on well profiles, azimuth and quadrants, horizontal well types, and directional drilling assemblies for building angle and holding angle.
Dewatering is the process of removing water from construction sites to allow excavation work to be done safely and efficiently below the water table. There are several reasons why dewatering is needed, including providing a dry work area, improving stability, and increasing safety. Common dewatering techniques include sump pumping, well points, deep wells, and trenches. Each method has advantages and disadvantages depending on the site conditions and depth of water lowering required. Proper planning and design of a dewatering system is important to effectively control groundwater and allow construction work to progress smoothly.
This document provides information on pile foundations, including different types of piles, classifications of piles, construction methods for piles, factors influencing pile capacity, load testing, and potential defects in cast in situ piles. It discusses deep foundations such as pile and well foundations. It classifies piles based on material, construction method, load transmission mode, cross-sectional area, size, inclination, and describes end bearing, friction, and friction-cum-end bearing piles. Construction methods for driven precast, driven cast in situ, and bored cast in situ piles are outlined.
Dewatering is the process of removing water from construction sites to allow for excavation and construction in dry conditions below the water table. It is done through various techniques like sump pumping, well points, deep wells, and eductor systems. The main purposes of dewatering are to provide a dry excavation area, improve stability, and allow for efficient construction. Proper planning and techniques are needed to safely lower the water table and discharge water without causing erosion or other issues.
This document discusses different types of water pipes used for transporting drinking water, including their characteristics and uses. It covers cast iron, steel, galvanized iron, copper, plastic, asbestos cement, concrete and PPR pipes. For each type, the document discusses advantages and disadvantages, joining methods, manufacturing processes, uses, and corrosion protection. It also discusses best practices for laying pipes, joining, testing, disinfecting and hydraulics of water flow in pipes.
Your Score 1420Not bad. Your score means youre slightly bette.docxodiliagilby
Your Score: 14/20
Not bad. Your score means you're slightly better than the average at reading expressions. And research suggests that people can improve their emotion recognition skills with practice. So keep an eye out for our forthcoming empathy training tool, designed to boost your emotional intelligence. Sign upfor our e-newsletter for updates on it.
Drilling Engineering
Class 8
1
Casing
• What is casing?
• Pipe that is API certified for its specific application
• Why is casing set?
• Zonal Isolation when cemented in place
• Casing point selection
• Regulations
• Area Geology
• Formation Pressures
• As the operator, who decides on casing points?
2
Casing
• API casing is available in standard sizes from 4-1/2” to 20” OD
• Usually steel but can be aluminum, fiberglass, stainless steel,
plastic, titanium etc.
• One piece of casing pipe is referred to as a “joint” of casing
• Casing length is dependent on the “range” of pipe
• Range-1: 18-22ft
• Range-2: 27-30ft
• Range-3: 38-45ft
• Casing Threads are defined by the coupling type
• API Threads
• LTC: Long thread coupling
• STC: Short thread coupling
• BTC: Buttress thread coupling
• Semi & Premium Threads
• See VAM Presentation
3
Casing
• Casing Components
• Casing
• Size, Weight, Grade, Threads
• 9-5/8" 53.5# P-110 LTC Rg 3
• See Casing Data Chart
• What is Drift Diameter?
• Pup Joints
• Float Collars
• Float Shoe
• Guide Shoe
• Centralizers
• Baskets
• Scratchers/Scrapers
4
Casing
• Running Casing
• Bales/Elevators
• Power Tongs
• Torque Turn
• Calculate weight and Hookload HL
• Calculate collapse, how often should you fill the pipe?
• Is the pipe taking the proper amount of fluid to fill? CSGcap
• Is the proper amount of fluid coming back to the pits as the
casing is run in the hole? CSGcap & CSGdisp
• Once casing is landed, circulated mud. Calculate B/U
5
Casing
• Centralization
• Vertical Wells
• Never truly vertical, usually spiral
• Typically use bow spring type centralizers
• There are state regulations on centralizer placement
• The shoe is very important to be centralized
• Horizontal Wells
• Balance between too many and not enough centralizers
• Many types: rigid, floating, bow spring, bladed, spiral bladed, etc.
• Centralizer design software can model the well as drilled and suggest
centralizer placement
• High dogleg areas need more frequent centralizers to obtain
sufficient standoff
6
Casing
• Stand-off
• Pipe Stand-off is a major contributor to hole cleaning, mud
removal, and cement quality.
• % 𝑆𝑡𝑎𝑛𝑑𝑜𝑓𝑓 = ൗ𝑊𝑛 𝑅2−𝑅1 ∗ 100%
7
Casing
• Stand-off
• The Stand-off formula results a percentage, where 0% represents
the pipe in contact with the wellbore wall. 100% represents the
pipe is perfectly centered in the well.
• When the pipe is not centered, the wider portions will promote
flow due to less resistance. There can be pockets of cuttings or
mud in the tighter areas causing
The document discusses the use of cellular concrete for shallow utility and foundation insulation and for void fill and grouting applications. Cellular concrete is ideal for these uses as it is self-compacting, self-leveling, and flows easily to fill complex spaces. It provides freeze protection, spreads loads evenly, and is resistant to hydrocarbons. Cellular concrete is also easy to excavate if future access is needed due to its fluid properties when freshly placed.
Cofferdams are temporary structures used to allow construction in areas that would otherwise be underwater or difficult to work in. They are enclosures that hold back water and soil to create a dry work area. Various types of cofferdams exist, including braced, earth-type, timber crib, double-walled sheet pile, and cellular designs. Proper construction and safety precautions are vital as workers will be exposed to flooding hazards. Leakage is prevented through measures like cement grouting, clay sealing, and tarpaulins.
The document discusses the deteriorating state of worldwide infrastructure and proposes pipe bursting as a solution. It notes that water, sewer, and gas systems in urban areas are in need of replacement as many have exceeded their useful life. Pipe bursting provides advantages over traditional trenching methods such as less risk of damage to surrounding utilities and reduced social and economic impacts. The document then provides details on HammerHead's pipe bursting machines and accessories for completing trenchless infrastructure replacement projects.
The document discusses the deteriorating state of global infrastructure systems and the need for replacement. Many water, sewer, and gas systems worldwide have exceeded their useful lifespan and are in need of replacement. Traditional open-trench replacement methods are often not viable due to high costs and disruption. Pipe bursting provides a proven trenchless replacement method that reduces costs, risks, and impacts compared to open-trench alternatives.
HammerHead Mole® pneumatic piercing tools provide a minimally disruptive way to install underground services by creating compact holes through landscapes, buildings, and traffic areas. They are preferred by contractors due to their low operating costs per foot of installation, reasonable equipment investment, and ease of use. HammerHead offers 24 mole models in various sizes to suit different job conditions, more than any other manufacturer.
This document discusses pipe bursting and pre-chlorination methods for replacing large-scale water distribution systems. It provides background on the state of aging water infrastructure in need of replacement. Pipe bursting is presented as a more cost-effective and socially acceptable alternative to open trench replacement methods. The document outlines the pipe bursting process, considerations for project design, and pre-chlorination procedures to ensure water quality. It provides a case study example of a large pipe bursting project in Brownstown, Michigan that utilized pre-chlorinated HDPE pipe.
This document describes HDD assist methods using pipe rammers to help with problematic horizontal directional drills. It outlines four main methods - washover casings, pullback assist, pipe extraction, and drill stem recovery. For each method it provides details on the process and equipment used as well as examples of jobs where each method helped complete challenging HDD projects.
The document compares rehabilitation and replacement applications for pipelines. It lists the steps involved in open cut replacement which include saw-cutting, excavation, transport of spoil, backfill, compaction, concrete/asphalt, and traffic control. Rehabilitation allows increasing the pipe diameter without excavation. The document was presented by First Name Last Name and provides contact information for Hammerhead Trenchless.
This is a thank you letter from First Name Last Name, who holds the title of Presenter. It provides contact information for the sender, including their email, phone number, international phone number, fax number, and website. The letter expresses gratitude but does not provide any additional context about its purpose or topic.
This is a thank you letter from First Name Last Name, who holds the title of Presenter at Hammerhead Mole. It provides contact information for Hammerhead Mole, including their email, phone number, international phone number, fax number, and website.
This is a thank you letter from First Name Last Name, who holds the title of Presenter. It provides contact information for the sender, including their email, phone number, international phone number, fax number, and website. The letter expresses gratitude but does not provide any additional context about its purpose or topic.
This is a thank you letter from First Name Last Name, who holds the title of Presenter at Hammerhead Mole. It provides contact information for Hammerhead Mole, including their email, phone number, international phone number, fax number, and website.
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...Diana Rendina
Librarians are leading the way in creating future-ready citizens – now we need to update our spaces to match. In this session, attendees will get inspiration for transforming their library spaces. You’ll learn how to survey students and patrons, create a focus group, and use design thinking to brainstorm ideas for your space. We’ll discuss budget friendly ways to change your space as well as how to find funding. No matter where you’re at, you’ll find ideas for reimagining your space in this session.
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
How to Make a Field Mandatory in Odoo 17Celine George
In Odoo, making a field required can be done through both Python code and XML views. When you set the required attribute to True in Python code, it makes the field required across all views where it's used. Conversely, when you set the required attribute in XML views, it makes the field required only in the context of that particular view.
This presentation was provided by Steph Pollock of The American Psychological Association’s Journals Program, and Damita Snow, of The American Society of Civil Engineers (ASCE), for the initial session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session One: 'Setting Expectations: a DEIA Primer,' was held June 6, 2024.
This presentation includes basic of PCOS their pathology and treatment and also Ayurveda correlation of PCOS and Ayurvedic line of treatment mentioned in classics.
2. What is Pipe Ramming?
PIPE RAMMING
CULVERT INSTALLATION AND REPLACEMENT
A pneumatic hammer installs an open ended steel casing that is cleaned out during and after completion of
pipe installation.
4. Advantages
PIPE RAMMING
CULVERT INSTALLATION AND REPLACEMENT
• Trenchless
• Able to swallow rock as large as the
inside diameter of the casing
• Method does not remove soil until
casing is installed
• Minimizes voids
–Roads
–Railroads
• Reduced soil compaction
5. Preferred for Adverse Soil Conditions
PIPE RAMMING
CULVERT INSTALLATION AND REPLACEMENT
• Free flowing sand
• Cobble conditions
• Large rock formations
• Excessive ground water
6. SWALLOWS LARGE OBSTRUCTIONS
PIPE RAMMING
CULVERT INSTALLATION AND REPLACEMENT
• Rock swallowed during ram
• Spoil removed post ram
54” Casing
7. CULVERT SWALLOWING
PIPE RAMMING
CULVERT INSTALLATION AND REPLACEMENT
An oversized casing is rammed over existing culvert. After installation is complete, old culvert and spoil is
removed. Steel casing can serve as the drainage culvert or as a carrier pipe for another pipe inserted
within.
8. TELESCOPING METHOD
PIPE RAMMING FOR LONGER DISTANCES
CULVERT INSTALLATION AND REPLACEMENT
An oversized pipe is rammed over the existing culvert until production ceases and is cleaned out. Further
progress is made with smaller casings installed within the oversized pipe in the same manner.
10. RAM SITE LAYOUT
PIPE RAMMING
CULVERT INSTALLATION AND REPLACEMENT
Note: Follow local regulations for sloping or shoring of pit.
11. SITE PREP: CASING PLACEMENT
PIPE RAMMING
CULVERT INSTALLATION AND REPLACEMENT
Rail system I-beam Pipe Mule™
Leveling System
12. STEEL CASING PREP
PIPE RAMMING
CULVERT INSTALLATION AND REPLACEMENT
SOIL SHOE LUBRICATION
Steel Casing
Internal Shoe
External Shoe
Reinforces lead casing and provides an Supplies lubricating fluid to OD and ID of
annulus for lubrication. casing during installation.
13. COLLETS AND RAMMER
PIPE RAMMING
CULVERT INSTALLATION AND REPLACEMENT
Install Pushing Collets/Collars Install Rammer
Collets and collars help to distribute the The rammer is locked into the collets when
ramming force to the face of the pipe. the tool is started.
The collets also lock the rammer into place.
14. SPOIL REMOVAL
PIPE RAMMING
CULVERT INSTALLATION AND REPLACEMENT
Spoil removal for >30” and/or Spoil removal <30” Casing
large spoil/culverts
Seal kit
Manual excavation, HDD culvert cleaning Air and/or water pressure. Seal kit for air
tools, jet washing, auger boring wherever pressure removal.
applicable.
15. PIPE RAMMING CASE STUDIES
HIGHWAY & RAILROAD CULVERT INSTALLATION & REPLACEMENT WITH PIPE RAMMING
25. NEW INSTALLATION – DALTON HWY, AK
PIPE RAMMING
CULVERT INSTALLATION AND REPLACEMENT
• Drainage culvert
• Glacial til/new road bed
• Service hwy between Prudhoe
Bay oil reserves & Fairbanks
26. NEW INSTALLATION – DALTON HWY, AK
PIPE RAMMING
CULVERT INSTALLATION AND REPLACEMENT
• Project
–1 – drainage culvert under service
highway
• Pipe sizes
–1 - 36” casing
• Equipment
–24” Rammer
• Ram distance
–1 @ 160’
27. NEW INSTALLATION – DALTON HWY, AK
PIPE RAMMING
CULVERT INSTALLATION AND REPLACEMENT
• Project
–1 – drainage culvert under service
highway
• Pipe sizes
–1 - 36” casing
• Equipment
–24” Rammer
• Ram distance
–1 @ 160’
29. HDD RAM ASSIST
• When problems arise while
horizontal directional drilling
HDD ASSIST
(HDD) costs begin to add up with
each tick of the clock.
PIPE RAMMING
• Quick reaction time and expert
technical support are critical to
salvaging a bore gone bad.
• The percussive power of pipe
rammers can help free stuck
product pipes, drill stems, and
help remove product pipes on
failed bores.
30. FOUR METHODS
•Washover casings
HDD ASSIST
•Pull back assist
PIPE RAMMING
•Pipe extraction
•Drill stem recovery
31. WASHOVER CASING METHOD
HDD ASSIST
PIPE RAMMING
• Used as a pilot for large HDD projects • Makes a guide down hole for mud motors
• Casings are rammed through difficult soil • Casing provides a path for drill fluid
conditions to rock or solid soil recycling and reduces the loss of fluids
in surface soils
32. ON THE JOB: WASHOVER CASINGS
• Hong Kong, China
–Wash over casing
HDD ASSIST
• Pipe sizes
PIPE RAMMING
–2 – 54” casings
• Equipment
–24” Rammer
• Ram distance
–2 @ 66’
33. PULL BACK ASSIST METHOD
HDD ASSIST
PIPE RAMMING
• Assist HDD when pullback is not possible • Percussive power frees immobilized
and machine still has rotation capabilities product pipes.
• Rammer attached to product pipe
34. PULLBACK ASSIST
HDD ASSIST CONNECTION METHOD STEEL
PIPE RAMMING
Rammer is locked into steel casing via collets. Steel casing is installed using
pullback force of HDD and percussive force of the rammer.
35. PULLBACK ASSSIST
CONNECTION METHOD HDPE
(OPTION 1)
HDD ASSIST
PIPE RAMMING
Rammer is locked into steel casing via collets. The steel casing is connected to
the HDPE product pipe via steel to HDPE flange compression kit. HDD pull force
is used in conjunction with the rammer to install the pipe.
36. PULLBACK ASSIST
CONNECTION METHOD HDPE
(OPTION 2)
HDD ASSIST
PIPE RAMMING
Rammer is locked into steel casing via collets. Steel casing is welded to
steel ring that is flush with HDPE face, and welded to steel sleeve. Steel
sleeve is bolted to HDPE product pipe. HDD pull force is used in conjunction
with the rammer to install the pipe.
37. ON THE JOB: PULLBACK ASSIST
• Normangee, TX
–Pullback Assist (pipe stuck for 4
HDD ASSIST
days before start of assist)
• Reason for pullback failure –
PIPE RAMMING
excessive flooding in area
caused collapsed entry pit and
hole.
• HDD Rig
–500,000 lb pullback
• Pipe
–2,800’ of 36” casing
• Equipment
–24” Rammer
38. ON THE JOB: PULLBACK ASSIST
• Stewart, FL
–HDPE Pullback Assist, pipe sat
HDD ASSIST
for more than two weeks before
assist could be started due to
PIPE RAMMING
excessive hurricane season.
• HDD Rig
–1.2 M lb custom drill rig
• Pipe size
–4,500’ of 24” HDPE pipe 80’
deep
• Equipment
–24” Rammer
39. PIPE EXTRACTION METHOD
HDD ASSIST
PIPE RAMMING
• Remove stuck product pipe and bore • Percussive action along with static
again tension pulls product pipe, removing it
• Rammer is attached to product pipe by from the bore
fabricating an adaptor
40. PIPE EXTRACTION
HDD ASSIST CONNECTION METHOD FOR STEEL CASING
PIPE RAMMING
Rammer is locked into steel casing that is welded onto the product casing.
Static pull force is used in conjunction with the rammer to extract the product
casing.
41. PIPE EXTRACTION
HDD ASSIST CONNECTION METHOD FOR HDPE
PIPE RAMMING
Rammer is locked into steel casing that is welded onto the steel
sleeve. Steel sleeve is bolted to HDPE product pipe. Static pull force
is used in conjunction with the rammer to extract the product casing.
42. ON THE JOB: PIPE EXTRACTION
• Orlando, FL
–HDPE Pipe Extraction
HDD ASSIST
• Pipe size
PIPE RAMMING
–850’ extraction of 30” HDPE pipe
• Equipment
–16” Rammer
43. DRILL STEM RECOVERY METHOD
HDD ASSIST
PIPE RAMMING
• Recover expensive stuck drill rod • Kinetic energy is used to assist in
• Rammer is attached the to drill rod by pulling or pushing rod out of the ground
fabricating an adaptor with the assist of static tension
44. ON THE JOB: DRILL STEM RECOVERY
HDD ASSIST
PIPE RAMMING
45. RECOMMENDED HAMMERS
Calculated
Rammer Impact Rate Pipe Diameter
HDD Class Impact Force
Size BPM Range
at 1 ft/min*
HDD ASSIST
7” 24,000 lbs 295 184,000 lbs 8” – 16”
PIPE RAMMING
24,000; 33,000;
8” 223 252,000 lbs 8” – 24”
50,000 lbs
33,000; 50,000;
12” 271 744,000 lbs 12” – 36”
80,000 lbs
16” 80,000 lbs 231 1,094,000 lbs 12” – 48”
80,000;
20” 190 1,740,000 lbs 20” – 54”
150,000 lbs
150,000 lbs
24” 177 2,020,000 lbs 24” – 72”
and larger
*The numbers shown here are based on calculation and are for comparative purposes only between various models of HammerHead
Rammers. The numbers are not intended for engineering applications.
46. THANK YOU
FIRST NAME LAST NAME
PRESENTER TITLE
E: info@hammerheadmole.com
P: 800.331.6653 | INT: +1.262.567.8833 | F: 262.567.5068
W: www.hammerheadtrenchless.com
Editor's Notes
When installing a steel pipe, it is usually a simple matter of inserting a set of collets into the pipe which allow the hammer to lock into the casing. In some instances, the pipe may need to be reinforced, or a fabricated adapter may be needed to match the size of the available collets to the size of the product pipe.
When installing HDPE pipe, an adapter will be needed to allow the connection of the hammer to the pipe. The easiest is a flange adapter that is fused to the pipe string, then a steel casing is added to the flange adapter, and the whole assembly is bolted up. This provides a stub of casing for the collets, which in turn, lock the hammer.
A second alternative is to fabricate a sleeve which should just fit over the HDPE. The sleeve is then bolted into the HDPE pipe. At the end of the sleeve is a plate that will butt up against the back of the HDPE. Then a casing is welded and gusseted to the plate to provide a receiver for the collets and ramming tool.
The adapter for steel casing is the easiest; it is simply a piece of casing, which need not be the same size as the pipe being installed, it can be sized to whichever set of collets is most convenient. The piece of casing is welded on top of the product, then gussets are added for increased strength. The collets will go on the front side of the arrangement so that the hammer is pounding the pipe out of the bore.
For HDPE, a steel sleeve will need to be fabricated to fit more or less snugly over the HDPE, then bolted to the pipe. A piece of casing is welded to the top of the sleeve just like for the steel extraction adapter, to act as a receiver for the ramming tool and collets.