Construction equipments by prabhunath sharma
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its an Seminar Report On Construction Equipments....

its an Seminar Report On Construction Equipments....

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    Construction equipments by prabhunath sharma Construction equipments by prabhunath sharma Document Transcript

    • A SEMINAR REPORT ON “CONSTRUCTION EQUIPMENTS” Submitted By MR. SHARMA PRABHUNATH .G Third Year (Civil Engg.). Exam Seat No-T80090151 Roll No-136 In Partial Fullfillment of Third Year Cicil Engineering UNIVERSITY OF PUNE 2013-14 Under The Guidance of Prof. S.N.Daule DEPARTMENT OF CIVIL ENGINEERING P.D.V.V.P COLLEGE OF ENGINEERING AHMEDNAGAR,(M.S),INDIA. 2013-14.
    • PADMASHRI DR.VITHALRAO VIKHE PATIL COLLEGE OF ENGINEERING, AHMEDNAGAR. DEPARTMENT OF CIVIL ENGINEERING Affiliated To University Of Pune, CERTIFICATE This is to certify that the Seminar Work entitled “CONSTRUCTION EQUIPMENTS” Submitted by: MR. SHARMA PRABHUNATH .G (Exam Seat No:T80090151) Roll No:136 Is the bonafide work completed under our guidance in partial fulfillment as per curriculum of Third Year in Civil Engineering of University of Pune in the academic year 2013-14 Prof. S.N. Daule Dr. T. K. Nagaraj (Guide) (H. O. D. Civil Engg.Dept.) Dr. H. N. Kudal (Principal, PDVVP COE, Ahmednagar)
    • ACKNOWLEDGMENT It is with immense pleasure that I am presenting my seminar on “Construction Equipments” At the outset I would like to pay my respect and profound gratitude to Prof. S. N. Daule and the other staff members for their timely advice and expert counsel, without this seminar would have been devoid of its richness. I would like to express my sincere thanks to the Head of department of Civil Engineering Dr. T. K. Nagaraj who has been kind enough to grant me permission to present this seminar. I would like to thanks Our Principal Dr. H. N. Kudal for granting me permission to work on this topic. Lastly I would like to thanks to all teaching and non teaching staff and my friends without whose worthwhile support this work would not have been possible. MR. SHARMA PRABHUNATH G. TE CIVIL
    • INDEX Sr No. 1 CONTENT Chapter no.1 Introduction 1.1 General introduction 1.2 Construction Equipment 2 Chapter no.2 Excavation and Loading Page No. 01 02 03 2.1 Crane-shovel 2.2 Truck Mounting & Wheel Mounting 2.3 Loader 3 Chapter no.3 Compaction and Grading 05 3.1 Compaction Equipment 3.2 Function 4 Chapter no.4 Drilling and Blasting 07 4.1 Drilling 4.2 Drilling Equipments 4.3 Blasting 5 Chapter no.5 Lifting and Erecting 09 6 Chapter no.6 Mixing and Paving 11 7 13 8 Chapter no.7 Construction Tools and Other Equipment Chapter no.8 Automation of Equipment 9 References 15 14
    • FIGURE INDEX Sr No. Figure Name Page No. 1 RMC Truck 01 2 Construction Equipment 01 3 Vibrating Road Roller 02 4 Bulldozer 02 5 Typical Machines in the Crane-Shovel Family 04 6 Compacting Roller 05 7 Types Of Roller 06 8 Drilling Equipment 08 9 Lifting Equipment 09 10 Crane Machine 10 11 Tilting Mixure 11 12 RMC Truck 11 13 Road Roller 12 14 Shovels 13 15 Construction Equipments 13
    • CHAPTER 1. INTRODUCTION 1.1General: Construction equipments are one of the very important resources of modern-day construction, especially in infrastructure projects. Such projects utilize equipments for most of the works including earthmoving operations, aggregate production, concrete production and its placement, and so on. In fact, one cannot think of any major construction activity without the involvement of construction equipment. There are different types of construction equipments suitable for different activities in a construction project. The choice of construction equipment defines the construction method, which in a way leads to the determination of time and cost for the project. In order to select the right equipment to perform a specific task at the least cost, it is essential to know the features of a construction equipment including its rate of production and the associated cost to operate the equipment. In this report, major types of equipments have briefly been introduced. For a contractor, the decision to employ a particular type of equipment is influenced by the contract he enters with the owners, the site condition and the location of the project site. Specifications indicating the capabilities and the different features of construction equipments are provided by manufacturers. The factors to be considered for the selection of some important construction equipment have been discussed. Fig. No:-1 RMC Truck Fig No:-2 Construction Equipment
    • 1.2 Construction Equipments The selection of the appropriate type and size of construction equipment often affects the required amount of time and effort and thus the job-site productivity of a project. It is therefore important for site managers and construction planners to be familiar with the characteristics of the major types of equipment most commonly used in construction. Fig No:-3 Vibrating Road Roller Fig No:-4 Bulldozer
    • CHAPTER 2. Excavation and Loading 2.1 Crane-shovel One family of construction machines used for excavation is broadly classified as a crane-shovel as indicated by the variety of machines in Figure. The crane-shovel consists of three major components: 1. a carrier or mounting which provides mobility and stability for the machine. 2. a revolving deck or turntable which contains the power and control units. 3. a front end attachment which serves the special functions in an operation. 2.2 Truck Mounting & Wheel Mounting The type of mounting for all machines in Figure is referred to as crawler mounting, which is particularly suitable for crawling over relatively rugged surfaces at a job site. Other types of mounting include truck mounting and wheel mounting which provide greater mobility between job sites, but require better surfaces for their operation. The revolving deck includes a cab to house the person operating the mounting and/or the revolving deck. The types of front end attachments in Figure might include a crane with hook, claim shell, dragline, backhoe, shovel and piledriver. 2.3 Loader A tractor consists of a crawler mounting and a non-revolving cab. When an earth moving blade is attached to the front end of a tractor, the assembly is called a bulldozer. When a bucket is attached to its front end, the assembly is known as a loader or bucket loader. There are different types of loaders designed to handle most efficiently materials of different weights and moisture contents. Scrapers are multiple-units of tractor-truck and blade-bucket assemblies with various combinations to facilitate the loading and hauling of earthwork. Major types of scrapers include single engine two-axle or three axle scrapers, twin-engine all-wheeldrive scrapers, elevating scrapers, and push-pull scrapers. Each type has different characteristics of rolling resistance, maneuverability stability, and speed in operation.
    • Fig No:-5 Typical Machines in the Crane-Shovel Family
    • CHAPTER 3. Compaction and Grading 3.1 Compaction Equipment The function of compaction equipment is to produce higher density in soil mechanically. The basic forces used in compaction are static weight, kneading, impact and vibration. The degree of compaction that may be achieved depends on the properties of soil, its moisture content, the thickness of the soil layer for compaction and the method of compaction. Some major types of compaction equipment are shown in Figure 4-4, which includes rollers with different operating characteristics. 3.2 Function The function of grading equipment is to bring the earthwork to the desired shape and elevation. Major types of grading equipment include motor graders and grade trimmers. The former is an all-purpose machine for grading and surface finishing, while the latter is used for heavy construction because of its higher operating speed. Fig No:-6 Compacting Roller
    • Fig No:-7 Types Of Roller
    • CHAPTER 4. Drilling and Blasting 4.1 Drilling Rock excavation is an audacious task requiring special equipment and methods. The degree of difficulty depends on physical characteristics of the rock type to be excavated, such as grain size, planes of weakness, weathering, brittleness and hardness. The task of rock excavation includes loosening, loading, hauling and compacting. The loosening operation is specialized for rock excavation and is performed by drilling, blasting or ripping. 4.2 Drilling Equipments Major types of drilling equipment are percussion drills, rotary drills, and rotarypercussion drills. A percussion drill penetrates and cuts rock by impact while it rotates without cutting on the upstroke. Common types of percussion drills include a jackhammer which is hand-held and others which are mounted on a fixed frame or on a wagon or crawl for mobility. A rotary drill cuts by turning a bit against the rock surface. A rotary-percussion drill combines the two cutting movements to provide a faster penetration in rock. 4.3 Blasting Blasting requires the use of explosives, the most common of which is dynamite. Generally, electric blasting caps are connected in a circuit with insulated wires. Power sources may be power lines or blasting machines designed for firing electric cap circuits. Also available are non-electrical blasting systems which combine the precise timing and flexibility of electric blasting and the safety of non-electrical detonation. Tractor-mounted rippers are capable of penetrating and prying loose most rock types. The blade or ripper is connected to an adjustable shank which controls the angle at the tip of the blade as it is raised or lowered. Automated ripper control may be installed to control ripping depth and tip angle. In rock tunneling, special tunnel machines equipped with multiple cutter heads and capable of excavating full diameter of the tunnel are now available. Their use has increasingly replaced the traditional methods of drilling and blasting.
    • Fig No:-8 Drilling Equipment
    • CHAPTER 5. Lifting and Erecting Derricks are commonly used to lift equipment of materials in industrial or building construction. A derrick consists of a vertical mast and an inclined boom sprouting from the foot of the mast. The mast is held in position by guys or stifflegs connected to a base while a topping lift links the top of the mast and the top of the inclined boom. A hook in the road line hanging from the top of the inclined boom is used to lift loads. Guy derricks may easily be moved from one floor to the next in a building under construction while stiffleg derricks may be mounted on tracks for movement within a work area. Tower cranes are used to lift loads to great heights and to facilitate the erection of steel building frames. Horizon boom type tower cranes are most common in highrise building construction. Inclined boom type tower cranes are also used for erecting steel structures. Fig No:-9 Lifting Equipment
    • Fig No:-10 Crane Machine
    • Chapter 6. Mixing & Paving Basic types of equipment for paving include machines for dispensing concrete and bituminous materials for pavement surfaces. Concrete mixers may also be used to mix portland cement, sand, gravel and water in batches for other types of construction other than paving. A truck mixer refers to a concrete mixer mounted on a truck which is capable of transporting ready mixed concrete from a central batch plant to construction sites. A paving mixer is a self propelled concrete mixer equipped with a boom and a bucket to place concrete at any desired point within a roadway. It can be used as a stationary mixer or used to supply slipform pavers that are capable of spreading, consolidating and finishing a concrete slab without the use of forms. A bituminous distributor is a truck-mounted plant for generating liquid bituminous materials and applying them to road surfaces through a spray bar connected to the end of the truck. Bituminous materials include both asphalt and tar which have similar properties except that tar is not soluble in petroleum products. While asphalt is most frequently used for road surfacing, tar is used when the pavement is likely to be heavily exposed to petroleum spills. Fig No:-11 Tilting Mixure Fig No:-12 RMC Truck
    • Fig No:-13 Road Roller
    • CHAPTER 7. Construction Tools & Other Equipment Air compressors and pumps are widely used as the power sources for construction tools and equipment. Common pneumatic construction tools include drills, hammers, grinders, saws, wrenches, staple guns, sandblasting guns, and concrete vibrators. Pumps are used to supply water or to dewater at construction sites and to provide water jets for some types of construction. Fig No:-14 Shovels Fig No:-15 Construction Equipments
    • CHAPTER 8. Automation of Equipment The introduction of new mechanized equipment in construction has had a profound effect on the cost and productivity of construction as well as the methods used for construction itself. An exciting example of innovation in this regard is the introduction of computer microprocessors on tools and equipment. As a result, the performance and activity of equipment can be continually monitored and adjusted for improvement. In many cases, automation of at least part of the construction process is possible and desirable. For example, wrenches that automatically monitor the elongation of bolts and the applied torque can be programmed to achieve the best bolt tightness. On grading projects, laser controlled scrapers can produce desired cuts faster and more precisely than wholly manual methods.
    • References 1. Construction Planning, Methods & Equipment: Puerifoy – Tata McGraw Hill 2. Construction Equipments & its Management: S. C. Sharma, Khanna Publications. 3. http://pmbook.ce.cmu.edu 4. http://teacher.buet.ac.bd/ziawadud/documents/equip.pdf