| 抗滑桩加固边坡稳定性及影响因素的有限元分析 |
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| 引用本文： | 陈乐求,杨恒山,林杭.抗滑桩加固边坡稳定性及影响因素的有限元分析[J].中南大学学报(自然科学版),2011,42(2). |
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| 作者姓名： | 陈乐求 杨恒山 林杭 |
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| 作者单位： | 1. 湖南理工学院土木建筑工程学院,湖南岳阳,414006
2. 中南大学资源与安全工程学院,湖南长沙,410083 |
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| 基金项目： | 湖南省研究生创新基金资助项目，长沙理工大学道路灾变防治及交通安全教育部工程研究中心开放基金资助项目 |
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| 摘 要： | 通过Fortran95语言编制边坡在抗滑桩加固情况下的稳定性程序(FPS),并与商业软件FLAC3D的计算结果进行对比,以验证程序的正确性及优越性;然后,通过抗滑桩支护参数对边坡稳定性的影响进行分析.研究结果表明:(1)当桩长较小时,抗滑桩设置在边坡中下部对稳定性最有利,当桩长较大时,抗滑桩设置在边坡中间对稳定性最有利;(2)桩长对于边坡安全系数的影响程度与抗滑桩布置的位置有关,当抗滑桩位于坡顶或者坡脚时,桩长的变化对于安全系数的影响很小;而抗滑桩位于边坡坡面中央时,在桩的长度达到临界桩长之前,边坡的安全系数与桩长呈显著的线性关系;(3)随着桩长的不断增大,潜在滑动面逐渐向边坡内部移动,破坏模式由浅层滑动变为深层滑动,安全系数也不断增大;但当桩长达到一定程度后,边坡的临界滑动面转移到临坡面位置.
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| 关 键 词： | 边坡 抗滑桩 有限元 稳定性 影响因素 |
Finite element analysis for slope stability and its influencing factors with pile reinforcement |
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| CHEN Le-qiu,YANG Heng-shan,LIN Hang.Finite element analysis for slope stability and its influencing factors with pile reinforcement[J].Journal of Central South University:Science and Technology,2011,42(2). |
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| Authors: | CHEN Le-qiu YANG Heng-shan LIN Hang |
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| Institution: | CHEN Le-qiu1,YANG Heng-shan1,LIN Hang2 (1.Department of Construction and Engineering,Hunan Institute of Science and Technology,Yueyang 414006,China,2.School of Resources and Safety Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | A program named FPS was compiled with Fortran95 for the slope stability analysis with pile reinforcement,the results from FPS were compared with those from commercial software FLAC3D for validation,and the efficiency of FPS was discussed.Then the influences of the pile reinforcement parameters on the slope stability were studied.The results show that(1) when the pile length is shorter,it is suggested to drive pile at the lower part of slope;while the pile length is longer,it is suggested to drive pile at th... |
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| Keywords: | slope pile reinforcement finite element stability influencing factors |
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