| 基于重力加载比例法的岩质边坡稳定性分析 |
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| 引用本文： | 郑涛,刘杰,张玉灯,毛新生.基于重力加载比例法的岩质边坡稳定性分析[J].灾害与防治工程,2008(2). |
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| 作者姓名： | 郑涛 刘杰 张玉灯 毛新生 |
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| 作者单位： | 三峡大学土木水电学院; |
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| 摘 要： | 根据岩质边坡的稳定性主要由边坡内部的结构面所控制的特点,采用有限元重力加载比例法对含有一组平行节理面和含两组节理面的岩质边坡进行数值模拟,分析表明:与强度折减法相比,采用有限元重力加载比例法能更加快速地计算出岩质边坡的安全系数,节省计算耗时和人工干预的工作量,并能通过塑性应变的发展分析其破坏过程,确定潜在的滑动面。
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| 关 键 词： | 重力加载比例法 岩质边坡 稳定性分析 滑动面 |
Stability Analysis on Rock Slopes by Gravity Increase Method |
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| Zheng Tao Liu Jie Zhang Yudeng Mao Xinsheng.Stability Analysis on Rock Slopes by Gravity Increase Method[J].Disaster and Control Engineering,2008(2). |
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| Authors: | Zheng Tao Liu Jie Zhang Yudeng Mao Xinsheng |
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| Abstract: | According to the characteristic that the stability of rock slope is mainly determined by its discontinuity and rock bridge,the stability analysis of jointed rock slope is carried out by finite element gravity increase method.The elastic-perfectly plastic material is adapted in the finite element method.With the gravity increasing,the nonlinear FEM model of jointed rock slope reaches instability,and the numerical non-convergence occurs simultaneously.The safety factor is then calculated by gravity increase a... |
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| Keywords: | gravity increase method rock slope stability analysis sliding surface |
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