Research On Indoor Stimulation Test Of The Failure Mechanism Of The Slope In Deep Foundation Pit

In this paper, the failure mechanism of the slope in deep foundation pit is studied with stimulation test indoor. This test is based on homogeneous soil in foundation, and divided into two phases. The first is to stimulate the construction flow to excavate the pit; the second phase is destructive test. Because the pit is stable in the first phase and the research is point to the geometry shape of the failure surface, moreover, limited to the test condition, the effective surface force is applied to the pit.Through the EXCEL program, and combining the inside and outside environment of the excavation and stress field and displace field, the data of stress and displacement of points are analyzed in variable depth and load grade and terminal state.The SPSS software has been applied to the statistics of geometry parameter of failure surface, and the failure surface criterion is created by the linearity regression from d (the longest horizontal distance between the failure surface and the side face of the slope), ho (the depth...