Rehabilitation of Lashis-Gele Water RC Reservoir, Existing ConditionsVladimir Popovic
The original design for rehabilitating an existing drinking water reservoir involved cleaning and repairing. However, upon entry, significant structural issues were discovered, including corroded reinforcement exposed in the roof slab and walls, holes allowing animal and water entry, and unsealed concrete layers in the walls. The scope of work was changed to a new design demolishing the roof slab and parts of walls to construct a new reservoir within the existing shell. Demolition revealed further deficiencies like thin roof slab with deteriorated reinforcement and unsealed concrete layers in the walls allowing water infiltration.
Rehabilitation of Oragvis-Gele Water RC Reservoir, Existing ConditionsVladimir Popovic
The original design for rehabilitating an existing drinking water reservoir involved cleaning and repairing. However, upon entry, significant structural issues were discovered, including corroded reinforcement exposed in the roof slab and walls, holes allowing animal and water entry, and unsealed concrete layers in the walls. The scope of work was changed to a new design demolishing the roof slab and parts of walls to construct a new reservoir within the existing shell. Demolition revealed further deficiencies like thin roof slab with deteriorated reinforcement and unsealed concrete layers in the walls allowing water infiltration.
Foundation Repair Systems & Forensic Repairsjamieram
The document provides an overview of services offered by Arizona Ram Jack, LLC including helical and hydraulic piers for foundation repair, concrete waterproofing, mudjacking, microdoweling, and carbon fiber wrapping. Case studies are presented showing applications of the foundation repair techniques to resolve issues like settlement, heaving, and added capacity needs.
Integrating Geothermal Loops into the Diaphragm walls of the Knightsbridge Pa...Tonyamis
The Knightsbridge Palace Hotel development required construction of deep basement levels, which necessitated the use of diaphragm walls for structural support and water exclusion. Geothermal loops were integrated into the diaphragm walls and plunge column piles to provide heating and cooling for the building. Technical challenges included protecting the loops during wall construction and ensuring the loops did not negatively impact the wall structure or construction process. Through close collaboration, the design team developed a hybrid system using energy walls and energy piles to incorporate the geothermal elements in a way that maximized efficiency while minimizing impacts.
1) The daily progress report provides updates on various projects at the waste management site, including the completion of repairs to the southwestern portion of the E6 liner slope and work continuing on the western storm water diversion project.
2) Work also continued on excavating around leachate risers in Cell 6 and pumping water from sediment basins and frac tanks.
3) Drilling at two locations for a hydraulic head study found no water.
The document discusses the construction of diaphragm walls. Diaphragm walls are reinforced concrete walls constructed underground using an excavation technique that keeps the trench full of a bentonite slurry. They are commonly used for deep basements and where construction time is limited. The construction process involves excavating trenches in panels, installing stop ends between panels, placing reinforcement cages, and pouring concrete through a tremie pipe to displace the slurry. Proper installation and maintenance of the bentonite slurry is crucial to prevent trench collapse during excavation and concrete placement.
Rehabilitation of Lashis-Gele Water RC Reservoir, Existing ConditionsVladimir Popovic
The original design for rehabilitating an existing drinking water reservoir involved cleaning and repairing. However, upon entry, significant structural issues were discovered, including corroded reinforcement exposed in the roof slab and walls, holes allowing animal and water entry, and unsealed concrete layers in the walls. The scope of work was changed to a new design demolishing the roof slab and parts of walls to construct a new reservoir within the existing shell. Demolition revealed further deficiencies like thin roof slab with deteriorated reinforcement and unsealed concrete layers in the walls allowing water infiltration.
Rehabilitation of Oragvis-Gele Water RC Reservoir, Existing ConditionsVladimir Popovic
The original design for rehabilitating an existing drinking water reservoir involved cleaning and repairing. However, upon entry, significant structural issues were discovered, including corroded reinforcement exposed in the roof slab and walls, holes allowing animal and water entry, and unsealed concrete layers in the walls. The scope of work was changed to a new design demolishing the roof slab and parts of walls to construct a new reservoir within the existing shell. Demolition revealed further deficiencies like thin roof slab with deteriorated reinforcement and unsealed concrete layers in the walls allowing water infiltration.
Foundation Repair Systems & Forensic Repairsjamieram
The document provides an overview of services offered by Arizona Ram Jack, LLC including helical and hydraulic piers for foundation repair, concrete waterproofing, mudjacking, microdoweling, and carbon fiber wrapping. Case studies are presented showing applications of the foundation repair techniques to resolve issues like settlement, heaving, and added capacity needs.
Integrating Geothermal Loops into the Diaphragm walls of the Knightsbridge Pa...Tonyamis
The Knightsbridge Palace Hotel development required construction of deep basement levels, which necessitated the use of diaphragm walls for structural support and water exclusion. Geothermal loops were integrated into the diaphragm walls and plunge column piles to provide heating and cooling for the building. Technical challenges included protecting the loops during wall construction and ensuring the loops did not negatively impact the wall structure or construction process. Through close collaboration, the design team developed a hybrid system using energy walls and energy piles to incorporate the geothermal elements in a way that maximized efficiency while minimizing impacts.
1) The daily progress report provides updates on various projects at the waste management site, including the completion of repairs to the southwestern portion of the E6 liner slope and work continuing on the western storm water diversion project.
2) Work also continued on excavating around leachate risers in Cell 6 and pumping water from sediment basins and frac tanks.
3) Drilling at two locations for a hydraulic head study found no water.
The document discusses the construction of diaphragm walls. Diaphragm walls are reinforced concrete walls constructed underground using an excavation technique that keeps the trench full of a bentonite slurry. They are commonly used for deep basements and where construction time is limited. The construction process involves excavating trenches in panels, installing stop ends between panels, placing reinforcement cages, and pouring concrete through a tremie pipe to displace the slurry. Proper installation and maintenance of the bentonite slurry is crucial to prevent trench collapse during excavation and concrete placement.
The daily progress report provides updates on several work items from an approved action plan. Work on assessing a cell involved removing protective stone to investigate a liner. Rain delayed reinstalling the liner. A diversion structure form was closed in preparation for a final pour, though rain prevented work. A box culvert pour was completed and pipe laying for a project finished. Drilling at piezometer locations found no water. Activities removing mud and stormwater from an area were ongoing. No analytical data or anticipated problems were reported.
This presentation discusses various ground improvement techniques, including:
- Dynamic compaction and dynamic replacement, which use heavy weights or tampers to densify soils.
- Vibro compaction and vibro replacement, which use vibratory probes to densify or install stone columns in soils.
- Controlled modulus columns, jet grouting, and vertical drains which are reinforcement techniques that install cement, soil-cement, or aggregate columns or improve drainage in soils.
- Menard vacuum consolidation, which uses a vacuum and vertical drains to accelerate consolidation of soft soils.
The document provides examples of applications of these techniques and their advantages for improving bearing capacity and reducing settlement of soils.
Diaphragm walls are underground structural elements.
It is an in-situ reinforced concrete structure that is constructed panel by panel.
Diaphragm walls are ideal for soft clays and loose sands below the water table where there is a need to control lateral movements.
Geosynthetics in civil engineering (multifunctional uses of geosynthetics in ...Super Arc Consultant
This document discusses the use of geosynthetics in civil engineering. It begins with an introduction to geosynthetics, describing the different types including geotextiles, geogrids, geonets, geomembranes, geosynthetic clay liners, geopipes, geocomposites, and geocells. It then discusses the key functions of geosynthetics like separation, drainage, filtration, fluid barriers, reinforcement, and protection. The document provides examples of applications for geosynthetics in areas like pavements, retaining walls, drainage, erosion control, embankments, and reinforced foundations. It concludes by stating the benefits of geosynthetics like using local materials, employing un
This document provides information about prestressed concrete storage tanks from DNTanks. It discusses DNTanks' construction procedures, the benefits of prestressed concrete tanks, and applications. DNTanks is the largest manufacturer of prestressed concrete tanks in the world, with over 130 years of combined experience constructing over 2,500 tanks globally. Prestressed concrete tanks provide benefits like being leak-free, requiring less maintenance than steel tanks, and allowing various installation methods. The document also discusses inspection and retrofitting of existing concrete tanks.
In Tunnel design and construction, Ground Freezing technique is one that many engineers and contractors usually consider today. Why do contractors and engineers consider this technique? What are the issues with this technique? And what could we consider as the greatest merit of this technology? Find out.
Miraculous Solution to Asia Pacific Soft Ground ImprovementADFIAP
Shanghai Geoharbour Group specializes in land reclamation, soft ground improvement, research, design, consulting, and construction. They have developed the High Vacuum Densification Method (HVDM) which combines vacuum drainage and dynamic compaction to quickly dewater, densify, and improve soft soils. HVDM creates an active drainage system under a pressure gradient to expedite consolidation and save schedule time. It has been successfully used on projects such as airports, ports, highways, and industrial developments.
Dutchland, Inc. is a precast concrete manufacturer that specializes in post-tensioned concrete structures using certified personnel. They produce tanks for water storage and wastewater treatment that are virtually maintenance-free for decades, requiring minimal site space and less construction time compared to cast-in-place. All structures are warranted for 10 years and can be constructed above or below ground in various configurations to meet specific needs.
Présentation de M. Naresh Gurpersaud (Keller) - SCG Ouest QuébecAlain Plaisant
Présentation de M. Naresh Gurpersaud, vice-président du service d'ingénierie de Keller à la Société Canadienne de Géotechnique - Section Ouest du Québec en Février 2018
This document discusses problematic soils for road construction, including expansive soils, compressible soils, and saturated/waterlogged soils. It focuses on expansive soils, which can cause damage to roads from swelling and shrinking as their moisture content changes. The key clay mineral responsible for expansiveness is montmorillonite. Roads constructed in areas with high water tables or problematic soils require measures like lowering the water table using subsurface drains, providing a capillary cutoff above the subgrade, and ensuring adequate pavement design. The document examines various clay minerals and how to identify them, as well as the types of damage expansive soils can cause to road infrastructure.
The document provides an overview of various ground improvement techniques including dynamic compaction, vibro compaction, dynamic replacement, vibro replacement, controlled modulus columns, and stone columns. It discusses the concepts, procedures, advantages, limitations, and examples of each technique. Quality control and assurance for dynamic compaction techniques is also covered, emphasizing the importance of monitoring during field operations and post-treatment evaluation.
D-wall, or diaphragm wall, is an earth retention technique used as a retaining wall or cut-off wall. It involves constructing a concrete wall using trench excavation, reinforcement cage installation, and concrete pouring to form a permanent, vibration-free retaining structure that can reach depths over 100 meters. Key advantages are its ability to be used near existing structures and in difficult soil conditions. The construction process involves building guide walls, excavating trenches in panels, cleaning excavated slurry, lowering the reinforcement cage, and pouring concrete using tremie pipes.
This document provides information about construction dewatering and permanent groundwater control techniques. It discusses the differences between construction dewatering, which involves temporarily lowering the groundwater table during construction, and permanent groundwater control, which blocks long-term groundwater flow. Various dewatering techniques are described, including sump pumping, shallow wells, well points, and deep wells. Methods for permanent groundwater control include ground freezing, slurry trench walls, steel sheet piling, grouted barriers, thin grouted membranes, contiguous piling, diaphragm walls, and grouting. The document also provides examples of applying these techniques and outlines their advantages and disadvantages.
LDCC is a lightweight cellular concrete made with cement, water, and preformed foam to produce a hardened material with a density of 50 lbs or less per cubic foot. It replaces coarse aggregate with air bubbles, making it flowable and self-compacting for rapid placement into structures. LDCC comes in permeable and non-permeable varieties and has a broad range of applications including backfill, trench filling, and retaining walls due to its versatility, durability, and environmental friendliness.
Shaft Grouting - Improving the capacity of bored piles by shaft grouting Nam N.N Tran M.Eng, PMP
Shaft grouting, a relatively new technique, is carried out by injecting grout at discrete points around a pile shaft, assuming that the grout spreads along it
This document provides an overview of Thrasher Commercial Group, which offers engineered solutions for deep foundations, earth retention, concrete lifting and leveling. It introduces the company's sales team and describes various client solutions including helical piles, push piers, helical soil nails, helical anchors and tiebacks, geo-lock wall anchors, polyurethane injection for concrete lifting and leveling, box culvert void filling, and case studies of road and bridge projects. Videos and questions are offered at the end for further discussion.
Carbon Fiber (FRP) used for structural strengthening. It’s 5 to 10 times stronger than steel, light weight and corrosion resistant. The ASME PCC-2 code new standard includes carbon fiber as an acceptable repair and strengthen system for steel pipes.
The daily progress report provides updates on several work items from an approved action plan. Work on assessing a cell involved removing protective stone to investigate a liner. Rain delayed reinstalling the liner. A diversion structure form was closed in preparation for a final pour, though rain prevented work. A box culvert pour was completed and pipe laying for a project finished. Drilling at piezometer locations found no water. Activities removing mud and stormwater from an area were ongoing. No analytical data or anticipated problems were reported.
This presentation discusses various ground improvement techniques, including:
- Dynamic compaction and dynamic replacement, which use heavy weights or tampers to densify soils.
- Vibro compaction and vibro replacement, which use vibratory probes to densify or install stone columns in soils.
- Controlled modulus columns, jet grouting, and vertical drains which are reinforcement techniques that install cement, soil-cement, or aggregate columns or improve drainage in soils.
- Menard vacuum consolidation, which uses a vacuum and vertical drains to accelerate consolidation of soft soils.
The document provides examples of applications of these techniques and their advantages for improving bearing capacity and reducing settlement of soils.
Diaphragm walls are underground structural elements.
It is an in-situ reinforced concrete structure that is constructed panel by panel.
Diaphragm walls are ideal for soft clays and loose sands below the water table where there is a need to control lateral movements.
Geosynthetics in civil engineering (multifunctional uses of geosynthetics in ...Super Arc Consultant
This document discusses the use of geosynthetics in civil engineering. It begins with an introduction to geosynthetics, describing the different types including geotextiles, geogrids, geonets, geomembranes, geosynthetic clay liners, geopipes, geocomposites, and geocells. It then discusses the key functions of geosynthetics like separation, drainage, filtration, fluid barriers, reinforcement, and protection. The document provides examples of applications for geosynthetics in areas like pavements, retaining walls, drainage, erosion control, embankments, and reinforced foundations. It concludes by stating the benefits of geosynthetics like using local materials, employing un
This document provides information about prestressed concrete storage tanks from DNTanks. It discusses DNTanks' construction procedures, the benefits of prestressed concrete tanks, and applications. DNTanks is the largest manufacturer of prestressed concrete tanks in the world, with over 130 years of combined experience constructing over 2,500 tanks globally. Prestressed concrete tanks provide benefits like being leak-free, requiring less maintenance than steel tanks, and allowing various installation methods. The document also discusses inspection and retrofitting of existing concrete tanks.
In Tunnel design and construction, Ground Freezing technique is one that many engineers and contractors usually consider today. Why do contractors and engineers consider this technique? What are the issues with this technique? And what could we consider as the greatest merit of this technology? Find out.
Miraculous Solution to Asia Pacific Soft Ground ImprovementADFIAP
Shanghai Geoharbour Group specializes in land reclamation, soft ground improvement, research, design, consulting, and construction. They have developed the High Vacuum Densification Method (HVDM) which combines vacuum drainage and dynamic compaction to quickly dewater, densify, and improve soft soils. HVDM creates an active drainage system under a pressure gradient to expedite consolidation and save schedule time. It has been successfully used on projects such as airports, ports, highways, and industrial developments.
Dutchland, Inc. is a precast concrete manufacturer that specializes in post-tensioned concrete structures using certified personnel. They produce tanks for water storage and wastewater treatment that are virtually maintenance-free for decades, requiring minimal site space and less construction time compared to cast-in-place. All structures are warranted for 10 years and can be constructed above or below ground in various configurations to meet specific needs.
Présentation de M. Naresh Gurpersaud (Keller) - SCG Ouest QuébecAlain Plaisant
Présentation de M. Naresh Gurpersaud, vice-président du service d'ingénierie de Keller à la Société Canadienne de Géotechnique - Section Ouest du Québec en Février 2018
This document discusses problematic soils for road construction, including expansive soils, compressible soils, and saturated/waterlogged soils. It focuses on expansive soils, which can cause damage to roads from swelling and shrinking as their moisture content changes. The key clay mineral responsible for expansiveness is montmorillonite. Roads constructed in areas with high water tables or problematic soils require measures like lowering the water table using subsurface drains, providing a capillary cutoff above the subgrade, and ensuring adequate pavement design. The document examines various clay minerals and how to identify them, as well as the types of damage expansive soils can cause to road infrastructure.
The document provides an overview of various ground improvement techniques including dynamic compaction, vibro compaction, dynamic replacement, vibro replacement, controlled modulus columns, and stone columns. It discusses the concepts, procedures, advantages, limitations, and examples of each technique. Quality control and assurance for dynamic compaction techniques is also covered, emphasizing the importance of monitoring during field operations and post-treatment evaluation.
D-wall, or diaphragm wall, is an earth retention technique used as a retaining wall or cut-off wall. It involves constructing a concrete wall using trench excavation, reinforcement cage installation, and concrete pouring to form a permanent, vibration-free retaining structure that can reach depths over 100 meters. Key advantages are its ability to be used near existing structures and in difficult soil conditions. The construction process involves building guide walls, excavating trenches in panels, cleaning excavated slurry, lowering the reinforcement cage, and pouring concrete using tremie pipes.
This document provides information about construction dewatering and permanent groundwater control techniques. It discusses the differences between construction dewatering, which involves temporarily lowering the groundwater table during construction, and permanent groundwater control, which blocks long-term groundwater flow. Various dewatering techniques are described, including sump pumping, shallow wells, well points, and deep wells. Methods for permanent groundwater control include ground freezing, slurry trench walls, steel sheet piling, grouted barriers, thin grouted membranes, contiguous piling, diaphragm walls, and grouting. The document also provides examples of applying these techniques and outlines their advantages and disadvantages.
LDCC is a lightweight cellular concrete made with cement, water, and preformed foam to produce a hardened material with a density of 50 lbs or less per cubic foot. It replaces coarse aggregate with air bubbles, making it flowable and self-compacting for rapid placement into structures. LDCC comes in permeable and non-permeable varieties and has a broad range of applications including backfill, trench filling, and retaining walls due to its versatility, durability, and environmental friendliness.
Shaft Grouting - Improving the capacity of bored piles by shaft grouting Nam N.N Tran M.Eng, PMP
Shaft grouting, a relatively new technique, is carried out by injecting grout at discrete points around a pile shaft, assuming that the grout spreads along it
This document provides an overview of Thrasher Commercial Group, which offers engineered solutions for deep foundations, earth retention, concrete lifting and leveling. It introduces the company's sales team and describes various client solutions including helical piles, push piers, helical soil nails, helical anchors and tiebacks, geo-lock wall anchors, polyurethane injection for concrete lifting and leveling, box culvert void filling, and case studies of road and bridge projects. Videos and questions are offered at the end for further discussion.
Carbon Fiber (FRP) used for structural strengthening. It’s 5 to 10 times stronger than steel, light weight and corrosion resistant. The ASME PCC-2 code new standard includes carbon fiber as an acceptable repair and strengthen system for steel pipes.
Carbon fiber wraps can be used for strengthening concrete and steel structures by increasing strength and corrosion resistance, with advantages of high strength, low weight, and speed of installation. Applications include strengthening pipes, columns, beams, and walls for seismic activity, added loads, corrosion, fatigue, and repairs from cutting or drilling. Engineering support is available and examples provided strengthening infrastructure for water, sewer, power plants, and other industrial facilities.
The document provides information about precast concrete, including:
- Precast concrete is concrete that is cast off-site in a controlled environment using reusable molds. Elements can be joined to form structures.
- Products include buildings, walls, slabs, columns. Elements are poured into molds, cured, then transported and installed.
- History of precast concrete dates back to Rome. Examples given include the Sydney Opera House and buildings by Richard Meier.
- Advantages include reduced construction time, quality control, and earthquake resistance. Disadvantages include high costs for small projects and difficulty altering cast-in services.
Distress of concrete structures & their repair techniquesZaid Ansari
This document discusses concrete distress and repair techniques. It begins by explaining that concrete structures may need repair after 25-30 years of service without maintenance. It then lists common causes of concrete distress like weathering, environmental effects, poor design/construction, and water leakage leading to corrosion. The document outlines expected service lives for different structure types. It also describes common concrete failure modes and causes of early deterioration. The remainder of the document discusses techniques for identifying distressed concrete, various repair materials and methods, and the need for trained concrete workers.
The Stefanutti Stocks Axsys Joint Venture overcame challenges constructing a submerged concrete cope beam for the Maydon Wharf Reconstruction Project in Durban harbor. They developed a specialized double-skin shuttering system that could seal against the steel pile wall and allow concrete to be cast in dry conditions below the water level. Precise planning and timing of construction with the tides was required. The shuttering system and reinforcements had to withstand dynamic loads from the concrete pour and rising tides. The project team successfully used this shuttering system to cast the cope beam in sections despite the challenges of the marine environment.
special concrete and high performance concreteErankajKumar
GROUTING OF CONCRETE, advantage ofGrouting,Characteristics of Grouting, GUNTING OF
CONCRETE, Application of Guniting, Properties of Guniting, advantage and disadvantage of Guniting, UNDERWATER CONCRETING, Properties of underwater concrete, METHODS OF UNDERWATER CONCRETE, advantage and disadvantage of underwater concrete, HOT WEATHERING CONCRETE, precautions, COLD WEATHER CONCRETING, PUMPABLE CONCRETE, Requirements of Mix Design for Pumpable Concrete, Ready Mixed Concrete RMC, Types of Ready Mixed Concrete, advantage and disadvantage of ready mixed concrete, introduction in High performance concrete HPC, selection of materials, behaviour of fresh high performance concrete HPC , behaviour of Hardened High performance concrete HPC when to use High performance concrete HPC , application of HPC , Advantage of HPC , Limitations of HPC
Retrofitting rehabilitation and repair of structureKumarS250747
The document provides information on repair, restoration, and retrofitting of structures. It defines key terms like repair, restoration, rehabilitation, and retrofitting. It describes common types of structural distress like cracking, honeycombing, corrosion, and settlement. It also includes 3 case studies on repair works: 1) Settlement of industrial floors involving soil excavation and replacement, 2) Restoration of a residential building affected by unequal settlement, and 3) Treatment for seepage in a basement. The document is a useful reference for understanding various repair and retrofitting techniques.
This document provides information about Concrete Cloth, a flexible cement-impregnated fabric that hardens when hydrated to form a thin, durable concrete layer. It can be used for applications like secondary containment, erosion control, and lining channels, ditches, slopes, and culverts. The document discusses Concrete Cloth's composition, installation process, abrasion resistance, applications, and case studies. Installation typically involves rolling out the fabric, hydrating it with water, and allowing it to cure into a hardened surface within 24 hours.
This document summarizes the description and condition of a bridge located at Chemin Côte-des-Neiges and Chemin Remembrance in Montreal. The bridge is made of concrete and steel and is owned by the city. It shows signs of deterioration from corrosion, cracking, and efflorescence. Testing and evaluations indicate repairs are needed for corrosion, alkali-silica reaction, and cracks. Recommendations include repairs to the concrete and application of protective coatings or overlays. The bridge is rated as deficient but repairs are not urgent unless the planned elimination is delayed.
Self-compacting concrete (SCC) was used for the Burj Khalifa construction project due to its ability to be pumped to great heights within a short time period. SCC flows into place under its own weight without vibration, allowing concrete to reach the upper levels of the skyscraper efficiently. While SCC requires skilled workers and has a higher cost than traditional concrete, it was essential for completing the world's tallest building. Common applications of SCC include drilled shafts, columns, earth retaining systems, and areas with dense reinforcement.
ANALYSIS & DESIGN OF CIRCULAR COMPONENTS OF WATER TREATMENT PLANT USING PREST...IRJET Journal
This document discusses the analysis and design of circular components for a water treatment plant using prestressed concrete. It begins with an introduction to prestressed concrete and its advantages over reinforced concrete for structures like water tanks. These advantages include reduced cracking and improved durability. The document then reviews previous literature on designing water tanks with both reinforced and prestressed concrete. It finds that prestressed concrete can be more cost-effective for larger tank capacities. The remainder of the document provides details on designing and modeling the prestressed concrete components of the water treatment plant using STAAD PRO software to compare with a reinforced concrete design.
This document discusses techniques for repairing, rehabilitating, and retrofitting structures. It covers strengthening structural elements, repairing structures damaged by corrosion, fire, leakage, or earthquakes. Specific techniques addressed include repairing fire-damaged concrete, sealing leaks, repairing cracks, jacketing structural members, and dry packing. The document also covers engineered demolition methods like mechanical demolition, implosion, and deconstruction for taking down structures.
Seismic retrofitting of heritage building- case studyashlinvilson
The Mani Mandir complex (100m×100m in plan) is an important historic monument of the town of Morbi
in the western state of Gujarat, which suffered significant damage during the M7.7 Bhuj earthquake of
2001 in India. As part of the earthquake reconstruction program, the Government of Gujarat decided to
seismically retrofit this complex. The project was divided into two phases of design and execution; this
paper discusses the evaluation and design procedures recommended for exeuction. A detailed condition
survey was carried out and measured drawings were prepared. A comprehensive retrofit program was
formulated. Conservation principles, minimum intervention and consonance with the heritage character of
the building were important considerations in selecting the retrofit program. The complex was modeled
using finite elements and behaviour was studied of the existing structure as well as retrofit structure. The
retrofit measures recommended included discriminate use of internal reinforced concrete skin walls,
providing a rigid diaphragm behaviour mechanism in existing slabs, introducing stainless steel
reinforcement bands in the existing masonry walls, cross-pinning and end-pinning in walls and pillars,
and strengthening of arches and elevation features.
Project Title: Supervision of Water Supply Systems Rehabilitation Works for 17 (21) Towns Under WIMP (EIB/WIMP/C/QCBS/03).
Project Description: 5nr Project-Cities: Lanchkhuti, Ozurgeti, Vani, Chokhatauri, Ureki. Installation of Distribution PE100, PN(8-12.5) Pipeline OD(32-450mm), Steel d(76/3.5 – 325/6mm) L=74,885m with 3,291nr PE100, PN(8-10) House Connections OD(20-75mm) L=35,647m;
Rehabilitation of the Urban Water Supply and Sanitation in the Sava River Basin in Bosnia and Herzegovina, (BMZ ID 2002 65 876). Rehabilitation of Urban Water Supply Una-Sana region, Consulting Services (Part A)
Rehabilitation of the Urban Water Supply and Sanitation in the Sava River Basin in Bosnia and Herzegovina, (BMZ ID 2002 65 876). Rehabilitation of Urban Water Supply Una-Sana region, Consulting Services (Part A)
City of Kostajnica WS & WW Project (KO 01): 10,429m of Transmission Main, City Network Pipelines (DI/PE DN63-300), 334nr House Connections, 33nr Air/Drain/Gate valves, 14nr Hydrants. 4,087m of combined system collector lines (corrugated HDPE100, SN8, DN300-1000mm), 66nr house connections, 88nr maintenance RC shafts, 3nr Storm Water Overflows, 5nr Outlet Structures.
Project Title: Rehabilitation of the Urban Water Supply and Sanitation in the Sava River Basin in Bosnia and Herzegovina, (BMZ ID 2002 65 876). Rehabilitation of Urban Water Supply Una-Sana region, Consulting Services (Part A)
Project Description: rehabilitation of Water Supply Systems & Sanitation on war affected areas. Drinking water supply network, total capacity: 61,600 m³/d, total number of inhabitants: 150,000, total length (transport mains and network): 45km of pipe main (ductile, PE), 1.500nr house connections; RC water reservoir Q=700m3, SCADA System. Sewage system works: 2nr of pump stations, 30km of network (HDPE), 800nr of house connections.
City of Kakanj WW Project (KA 01): 9,265m of Corrugated HDPE SN8 Pipes (DN250-1200), 265nr maintenance inspection RC shafts, 18nr backdrop shafts, 3nr Storm Water Overflows, 2nr Outlet Structures, 139nr House Collection Shafts, 496nr of households connected to new system.
Great Man Made River Project, IV Phase - Ghadames Project (extraction, treatment & transport of Sahara Nubian Sandstone Aquifer System water).
The aim of the system was conveying 90 MCMY from Ghadames basin to the coastal regions of Jaffara area to meet the domestic water requirements of the growing population in the area.
The system consists of the 144nr wells, 208km well field collector pipeline, 1nr (CO2) Water Treatment Plant (Q=250,000m3/d), 622km main conveyance and distribution line 1,600mm, PCCP (Pre-stressed Concrete Cylinder Pipes), Glass Reinforced, Polyethylene & Steel Pipelines, 4nr pump stations (PS#1: 4+2 Pumps, 0,72m3/s/Pump @ 153mlc; PS#2: 4+2 Pumps, 0,72m3/s/Pump @ 164mlc; PS#3: 4+2 Pumps, 0,72m3/s/Pump @ 164mlc, PS#4: 2+1 Pumps, 0,11m3/s/Pump @ 177mlc) & 3nr pressure breaking tanks (3x20,000m3), 1nr elevating tank (70,000m3), 1nr flow control tank (70,000m3), Communication and Control System, 3nr Operation and Maintenance Centers, Electrical distribution system for the well field.
Project Title: Great Man-Made River Project, IV Phase - Ghadames Project
Project Description: supervision and consulting over the construction of extraction, treatment, transport of water from the Nubian Sandstone Aquifer System located in Sahara (Ghadames) - to Zuwarah and Az Zawiah city. The system consists of the 144nr wells (900 - 1,100m depth), 208km well field collector pipeline, 622km main conveyance and distribution line, 1nr (CO2) Water Treatment Plant, 4nr pump stations, 3nr pressure breaking tanks, 1nr elevating tank, 25nr turnouts, Communication and Control System, 3nr Operation and Maintenance Centers, Electrical distribution system for the well field. Pipelines used for transport of water with main diameter 1,600 mm, PCCP (Pre-stressed Concrete Cylinder Pipes), Glass Reinforced Pipeline, Polyethylene, Steel Pipeline.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Rehabilitation of the Urban Water Supply and Sanitation in the Sava River Basin in Bosnia and Herzegovina, (BMZ ID 2002 65 876). Rehabilitation of Urban Water Supply Una-Sana region, Consulting Services (Part A).
Rehabilitation of the Urban Water Supply and Sanitation in the Sava River Basin in Bosnia and Herzegovina, (BMZ ID 2002 65 876). Rehabilitation of Urban Water Supply Una-Sana region, Consulting Services (Part A)
Build the Next Generation of Apps with the Einstein 1 Platform.
Rejoignez Philippe Ozil pour une session de workshops qui vous guidera à travers les détails de la plateforme Einstein 1, l'importance des données pour la création d'applications d'intelligence artificielle et les différents outils et technologies que Salesforce propose pour vous apporter tous les bénéfices de l'IA.
Impartiality as per ISO /IEC 17025:2017 StandardMuhammadJazib15
This document provides basic guidelines for imparitallity requirement of ISO 17025. It defines in detial how it is met and wiudhwdih jdhsjdhwudjwkdbjwkdddddddddddkkkkkkkkkkkkkkkkkkkkkkkwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwioiiiiiiiiiiiii uwwwwwwwwwwwwwwwwhe wiqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq gbbbbbbbbbbbbb owdjjjjjjjjjjjjjjjjjjjj widhi owqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq uwdhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhwqiiiiiiiiiiiiiiiiiiiiiiiiiiiiw0pooooojjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj whhhhhhhhhhh wheeeeeeee wihieiiiiii wihe
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A high-Speed Communication System is based on the Design of a Bi-NoC Router, ...DharmaBanothu
The Network on Chip (NoC) has emerged as an effective
solution for intercommunication infrastructure within System on
Chip (SoC) designs, overcoming the limitations of traditional
methods that face significant bottlenecks. However, the complexity
of NoC design presents numerous challenges related to
performance metrics such as scalability, latency, power
consumption, and signal integrity. This project addresses the
issues within the router's memory unit and proposes an enhanced
memory structure. To achieve efficient data transfer, FIFO buffers
are implemented in distributed RAM and virtual channels for
FPGA-based NoC. The project introduces advanced FIFO-based
memory units within the NoC router, assessing their performance
in a Bi-directional NoC (Bi-NoC) configuration. The primary
objective is to reduce the router's workload while enhancing the
FIFO internal structure. To further improve data transfer speed,
a Bi-NoC with a self-configurable intercommunication channel is
suggested. Simulation and synthesis results demonstrate
guaranteed throughput, predictable latency, and equitable
network access, showing significant improvement over previous
designs
Road construction is not as easy as it seems to be, it includes various steps and it starts with its designing and
structure including the traffic volume consideration. Then base layer is done by bulldozers and levelers and after
base surface coating has to be done. For giving road a smooth surface with flexibility, Asphalt concrete is used.
Asphalt requires an aggregate sub base material layer, and then a base layer to be put into first place. Asphalt road
construction is formulated to support the heavy traffic load and climatic conditions. It is 100% recyclable and
saving non renewable natural resources.
With the advancement of technology, Asphalt technology gives assurance about the good drainage system and with
skid resistance it can be used where safety is necessary such as outsidethe schools.
The largest use of Asphalt is for making asphalt concrete for road surfaces. It is widely used in airports around the
world due to the sturdiness and ability to be repaired quickly, it is widely used for runways dedicated to aircraft
landing and taking off. Asphalt is normally stored and transported at 150’C or 300’F temperature
Levelised Cost of Hydrogen (LCOH) Calculator ManualMassimo Talia
The aim of this manual is to explain the
methodology behind the Levelized Cost of
Hydrogen (LCOH) calculator. Moreover, this
manual also demonstrates how the calculator
can be used for estimating the expenses associated with hydrogen production in Europe
using low-temperature electrolysis considering different sources of electricity
Determination of Equivalent Circuit parameters and performance characteristic...pvpriya2
Includes the testing of induction motor to draw the circle diagram of induction motor with step wise procedure and calculation for the same. Also explains the working and application of Induction generator
Digital Twins Computer Networking Paper Presentation.pptxaryanpankaj78
A Digital Twin in computer networking is a virtual representation of a physical network, used to simulate, analyze, and optimize network performance and reliability. It leverages real-time data to enhance network management, predict issues, and improve decision-making processes.
Generative AI Use cases applications solutions and implementation.pdfmahaffeycheryld
Generative AI solutions encompass a range of capabilities from content creation to complex problem-solving across industries. Implementing generative AI involves identifying specific business needs, developing tailored AI models using techniques like GANs and VAEs, and integrating these models into existing workflows. Data quality and continuous model refinement are crucial for effective implementation. Businesses must also consider ethical implications and ensure transparency in AI decision-making. Generative AI's implementation aims to enhance efficiency, creativity, and innovation by leveraging autonomous generation and sophisticated learning algorithms to meet diverse business challenges.
https://www.leewayhertz.com/generative-ai-use-cases-and-applications/
2. Existing RCTank
Status
Originally planned repairs of
existing RC Tank by cleaning or
plaster and ironing of walls &
roof slab - not implemented
due to deteriorated condition
of theTank.
Photo: Lack of concrete cover
for roof slab re-bars caused
corrosion & disconnection
leaving the re-bars to hang
from the Columns.
4. During the original
construction of existingTank –
concrete cover has not been
provided for roof slab re-bars,
instead – plaster was applied,
which has falling off
repeatedly. High moisture
environment caused severe
corrosion of steel
reinforcement.
10. ExistingTank Shell
Leakages mostly present on
construction joints between
wall’s horizontal segments.
Originally – no water stop was
used between wall’s segments
during concrete pouring
38. New RCTank – Final
Status
Ventilation Pipes, Access
Manholes, Light Posts installed.
Right - Chlorine Gas
Chlorination Building (Double
BunkerType).