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Pile driving equipment
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- 2. Pile driving hammers •Energy=weight of ram × Fall of hammer • Thumb rule- A ram weighing equal to the pile will transfer energy quite efficiently to the pile during driving.
- 3. Main types ofpile driving Hammers:- 1. Drop Hammer 2. Single acting Hammer 3. Double acting Hammer 4. Differential acting Hammer 5. Diesel Hammer 6. Hydraulic Hammer 7. Sonic or vibratory Hammer
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- 10. Sonic or VibratorHammer
- 11. Selection of PileDriving Hammer 1. Size and type of piles 2. Number of piles 3. The character of the soil 4. The location of the project 5. The topography of the site 6. The type of rig available 7. Whether driving will be done on land or water
- 12. Pile Extractors • Pilesare sometimes required to be pulled out of the soil for replacement by another pile, inspection or reuse. • Sheet piles are generally extracted after they fulfil the task of ground water control during construction. • The pile is kept under vibration to eliminate the frictional resistance around the surface pile and an upward pull is applied to pull out the loosened pile.
- 13. Pile driving Rigs •Rigs lift the pile in position, hold it and the drive it upto specified depth.
- 14. Types of Piledriving Rigs 1. Land drivers 2. Floating drivers
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- 17. Pile driving equipmentaccessories 1. Pile driving head 2. Anvil block 3. Cushion block 4. Follower 5. Spuds 6. Pre-excavators
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