Abstract：
The conventional design method of foundation pit support system is based on the element design. Consequently, a lot of retaining structures are lack of essential redundancy, which led to many catastrophic collapse accidents of foundation pit. On the basis of redundancy of support system, PLAXIS 3D finite element software is used to simulate the foundation pit support system. The spatial effect of support system local damage on the whole foundation pit is studied. The vertical displacement of soil, deformation and stiffness sensitivity of underground diaphragm wall are analyzed. Optimization design of vertical retaining structure considering redundancy is proposed accordingly.
LIU Chang,LI Wen-jie,GUO De-qiang. Numerical Simulation and Optimization Design of Foundation Pit Support System Based on Redundancy[J]. Architecture Technology, 2016, 47(9): 781-.
