The compression of the pile in the pile group can be determined by static load test. The settlement of the pile toe is calculated by layer wise summation method.
群桩中桩身压缩由单桩静载试验得到的桩顶沉降与桩端沉降之差求得，群桩的桩端沉降由分层总和法计算。
2
In this method, the static resistance at pile toe can be calculated directly with the rebound at pile top and impulse duration from the acceleration signal at pile top.