Distributive regularities of inner force of pile under static and dynamic load, the change of pile's side resistance, and settlement of piles are analyzed by static and dynamic load test.
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。
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The most important difference between the slow test and fast load test is, in the former, the settlement under each load reaches to a state of steady, while it is unsteady in the latter test.