Through analysis and comparison between numerical simulation results and measured deformation of foundation pit,it is indicated that application of numerical simulation method during excavation and supporting of foundation pit is comparatively reliable and that steel pipe pilecompound soil-nailing wall can satisfy the requirements of stability of support in foundation pit.

In the underground parking lot construction of Jinyi Garden,tube-anchored wall is used to prevent side slope slide and to guarantee the integral stability of the deep foundation pit.