杭州某深基坑围护失稳原因分析

On Stabilization Losing in Deep Foundation Pit Curb Structure

通过分析某深基坑围护结构失稳现象,认为在软土中锚拉排桩的理论计算模型与实际工作状态之间的位移差距是导致围护失败的主要原因;在基坑施工分区块分阶段进行的工程,用前期获得的位移监测数据反演围护体系中的物理量变化或修正计算模式本身是保障围护安全的必要手段.

The author analyzes the stabilization losing case in deep foundation pit curb structure and puts forward that it is displacement between theoretical model and practical case of anchorage row of pipes in soft soil that causes the failure of curb.The author also tries to comfirm that it is necessary to calculate back the varieties in curb system to regain the model by using displacement mornitoring data gained previously in sectional constructing of foundation pit.