Question

3.33 A rapid impact compaction machine equipped with a 9 ton hammer with 1.2 m drop height and a 1.5 m diameter steel foot is used to compact a loose building waste area with a groundwater table at 3 m below the ground surface. The impact points are arranged in a triangular pattern with spacing of 2.0 m. Estimate the applied energy, the number of drops on each impact point, and the depth of improvement.

Answer 1