| h型抗滑桩模型试验及数值模拟 |
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| 引用本文： | 欧孝夺,唐迎春,崔伟,李结全,潘鑫.h型抗滑桩模型试验及数值模拟[J].岩石力学与工程学报,2012,31(9):1936-1943. |
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| 作者姓名： | 欧孝夺 唐迎春 崔伟 李结全 潘鑫 |
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| 作者单位： | (1. 广西大学 土木建筑工程学院，广西 南宁 530004；2. 广西大学 工程防灾与结构安全教育部重点实验室，广西 南宁 530004；;
3. 安徽省建筑科学研究设计院，安徽 合肥 230001) |
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| 基金项目： | 国家自然科学基金资助项目(51168004);广西自然科学基金资助项目(桂科自0991056);教育部科学技术研究重点项目(210162) |
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| 摘 要： | 通过几何相似比为1∶20的室内模型试验，研究h型抗滑桩的受力机制，采用千斤顶施加各级荷载，得到不同桩排距、不同连梁位置的3根h型抗滑桩弯矩及变形规律。并通过ABAQUS有限元软件建立h型抗滑桩桩–土共同作用模型，对h型抗滑桩几个设计参数进行优化计算研究，结果表明，最优桩排距为5倍桩径，最优连梁刚度为1.5倍桩体刚度，最优嵌固深度为前排桩长度的3/8。最后将该研究结论运用于南宁市一滑坡治理工程中，效果良好。
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| 关 键 词： | 桩基础 h型抗滑桩 工作机制 模型试验 数值模拟 |
| 收稿时间： | 2012-04-11 |
MODEL TEST AND NUMERICAL SIMULATION OF h-SHAPED ANTI-SLIDING PILE |
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| OU Xiaoduo,TANG Yingchun,CUI Wei,LI Jiequan,PAN Xin.MODEL TEST AND NUMERICAL SIMULATION OF h-SHAPED ANTI-SLIDING PILE[J].Chinese Journal of Rock Mechanics and Engineering,2012,31(9):1936-1943. |
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| Authors: | OU Xiaoduo TANG Yingchun CUI Wei LI Jiequan PAN Xin |
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| Affiliation: | (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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| Keywords: | pile foundations h-shaped anti-sliding pile working mechanism model test numerical simulation |
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