In the selection of the ram of a pile driver, it is desired that the ram lose all of its kinetic energy at each blow. Hence, the velocity of the ram is zero immediately after impact. The mass of each pile to be driven is 275 kg, and experience has shown that a coefficient of restitution of 0.38 can be expected. What should be the mass m of the ram? Compute the velocity v of the pile immediately after impact if the ram is dropped from a height of 4.5m onto the pile. Also compute the energy loss AE due to impact at each blow. 4.5 m 2.6 m Answers: m = i kg V = i m/s ΔΕ - i

In the selection of the ram of a pile driver, it is desired that the ram lose all of its kinetic energy at each blow. Hence, the velocity of the ram is zero immediately after impact. The mass of each pile to be driven is 275 kg, and experience has shown that a coefficient of restitution of 0.38 can be expected. What should be the mass m of the ram? Compute the velocity v of the pile immediately after impact if the ram is dropped from a height of 4.5m onto the pile. Also compute the energy loss AE due to impact at each blow. 4.5 m 2.6 m Answers: m = i kg V = i m/s ΔΕ - i

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter18: Pile Foundation

Section: Chapter Questions

Problem 18.18P

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