The bending moment,axial force of the pile and subfloor are also analyzed.Then it draws some conclusions useful to practical engineering.

• 对开挖引起的地面、建筑物角点的沉降规律做了分析与探讨,同时也分析了桩和底板的弯矩、轴力、剪力等变化规律,得出了有意义的结论。