MODEL TEST AND NUMERICAL SIMULATION OF h-SHAPED ANTI-SLIDING PILE
OU Xiaoduo1，2，TANG Yingchun1，2，CUI Wei1，3，LI Jiequan1，2，PAN Xin1，2
(1. College of Civil Engineering and Architecture，Guangxi University，Nanning，Guangxi 530004，China；
2. Key Laboratory of Disaster Prevention and Structural Safety，Ministry of Education，Guangxi University，Nanning，Guangxi 530004，China；3. Anhui Institute of Building Research and Design，Hefei，Anhui 230001，China)
Abstract：Indoor experiments were carried out on models with geometric similarity of 1∶20 to study h-shaped anti-sliding piles mechanism. The load was applied in steps by a jack，and the moment and deformation patterns of three h-shaped anti-sliding piles with different row spacings and different beam positions were obtained. The pile-soil interaction model of h-shaped anti-sliding pile was established by finite element software ABAQUS；and several design parameters of pile were analyzed and optimized. The results show that the optimal pile row spacing is 5 times pile diameter；the optimal stiffness of connecting beam is 1.5 times of pile；the optimal embedded depth of pile is 3/8 of the length of front row pile. Finally，the conclusions were successfully applied to treatment of an actual landslide in Nanning.
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2012, Vol. 31 
