Question: Problem 1: Use the Hiley formula to estimate the ultimate resistance R, for a steel pipe pile driven by a Junttan HHK9S hydraulic hammer

Problem 1: Use the Hiley formula to estimate the ultimate resistance R,

Problem 1: Use the Hiley formula to estimate the ultimate resistance R, for a steel pipe pile driven by a Junttan HHK9S hydraulic hammer (maximum stroke of 1.5 m and ram weight of 88 kN). The pile is 20 m length, with a diameter of 0.32 m and wall thickness of 10 mm. Assume elastic losses of 30 mm and an average final set of 10 mm. The coefficient of restitution for the pile-hammer system is C, = 0.5.

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