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。
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.
再次，运用二维轴对称有限元法以及三维有限元法，系统分析了挤扩支盘桩单桩和群桩的承载变形性状。
Thirdly, the bearing and deformation characteristics of single and group piles are investigated by means of axisymmetric finite element analysis (FEA) and three-dimensional FEA.
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