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| 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) |
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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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Received: 11 April 2012
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| [1] 王 丰. 门架式双排桩结构理论研究[硕士学位论文][D]. 重庆：重庆交通大学，2008.(WANG Feng. The theoretical research on portal double row piles structure[M. S. Thesis][D]. Chongqing：Chongqing Jiaotong University，2008.(in Chinese))
[2] 曹俊坚，平 扬，朱长歧，等. 考虑圈梁空间作用的深基坑双排桩支护计算方法研究[J]. 岩石力学与工程学报，1999，18(6)：709–712.(CAO Junjian，PING Yang，ZHU Changqi，et al. Study on the calculation method of bracing structure with double-row piles of deep foundation pit with consideration of the spatial influence of ring beam[J]. Chinese Journal of Rock Mechanics and Engineering，1999，18(6)：709–712.(in Chinese))
[3] 平 扬，白世伟，曹俊坚. 深基双排桩空间协同计算理论及位移反分析[J]. 土木工程学报，2001，34(2)：79–83.(PING Yang，BAI Shiwei，CAO Junjian. Calculation theory considering spatial influence and displacement feedback design of double-row piles in deep foundation[J]. China Civil Engineering Journal，2001，34(2)：79–83.(in Chinese))
[4] 郑 刚，李 欣，刘 畅，等. 考虑桩土相互作用的双排桩分析[J]. 建筑结构学报，2004，25(1)：99–106.(ZHENG Gang，LI Xin，LIU Chang，et al. Analysis of double-row piles in consideration of the pile-soil interaction[J]. Journal of Building Structures，2004，25(1)：99–106.(in Chinese))
[5] 申永江，吕 庆，尚岳全. 桩排距对双排抗滑桩内力的影响[J]. 岩土工程学报，2008，30(7)：1 033–1 037.(SHEN Yongjiang，LU Qing，SHANG Yuequan. Effect of pile row distance on internal stress of double-row anti-slide piles[J]. Chinese Journal of Geotechnical Engineering，2008，30(7)：1 033–1 037.(in Chinese))
[6] 杨德健，王铁成. 双排桩支护结构优化设计与工程应用研究[J]. 工程力学，2010，27(增2)：284–288.(YANG Dejian，WANG Tiecheng. Research on optimum design and application of double-row pile retaining structure[J]. Engineering Mechanics，2010，27(Supp.2)：284–288.(in Chinese))
[7] 张泽坤. h型抗滑桩的有限元分析[硕士学位论文][D]. 成都：西南交通大学，2008.(ZHANG Zekun. Finite element analysis of h-type slide-resistant pile[M. S. Thesis][D]. Chengdu：Southwest Jiaotong University，2008.(in Chinese))
[8] 申永江. 边坡工程中抗滑桩的效果评价与优化设计[博士学位论文][D]. 杭州：浙江大学，2009.(SHEN Yongjiang. Effect evaluation method and optimization design of anti-slide piles in slope engineering[Ph. D. Thesis][D]. Hangzhou：Zhejiang University，2009.(in Chinese))
[9] 肖世国. 边(滑)坡治理中h型组合抗滑桩的分析方法及工程应用[J]. 岩土力学，2010，31(7)：2 146–2 152.(XIAO Shiguo. Analytical method for h-type combined anti-sliding pile retaining landslide or excavated slope and its application to practical projects[J]. Rock and Soil Mechanics，2010，31(7)：2 146–2 152.(in Chinese))
[10] 马青力. h型桩板墙桩土相互作用数值分析[硕士学位论文][D]. 成都：成都理工大学，2006.(MA Qingli. The numerical analysis of pile-soil interaction in h-type sheet-pile wall[M. S. Thesis][D]. Chengdu：Chengdu University of Technology，2006.(in Chinese)) |
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2012, Vol. 31 
