| 降水对膨胀土滑坡稳定性影响的有限元分析 |
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| 引用本文： | 李宝平,高诗明,王雷,杨博,张博峰.降水对膨胀土滑坡稳定性影响的有限元分析[J].甘肃科学学报,2014(4):138-141. |
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| 作者姓名： | 李宝平 高诗明 王雷 杨博 张博峰 |
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| 作者单位： | 西安工业大学建筑工程学院,陕西西安710032 |
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| 摘 要： | 以渗流理论为基础,结合实际工程,分析了降水对膨胀土滑坡稳定性影响.通过室内试验分析了滑坡体渗透特性、体积含水量和基质吸力的关系,运用geo-studio有限元软件分析得到膨胀土体积含水量θ自上而下依次为24.8%、24.1%、23.5%、22.6%,降水条件下及无降水条件下的安全系数分别为1.620和2.141.结果表明,降水降低了坡体稳定性.
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| 关 键 词： | 膨胀土 滑坡 有限元分析 渗流理论 |
Finite Element Analysis of Effects of Rainfall on Expansive Soil Landslide Stability |
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| LI Bao-ping,GAO Shi-ming,WANG Lei,YANG Bo,ZHANG Bo-feng.Finite Element Analysis of Effects of Rainfall on Expansive Soil Landslide Stability[J].Journal of Gansu Sciences,2014(4):138-141. |
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| Authors: | LI Bao-ping GAO Shi-ming WANG Lei YANG Bo ZHANG Bo-feng |
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| Institution: | ( School of Civil Engineering, Xi＇an Technological University, Xi ＇an 710032, China ) |
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| Abstract: | Based on the percolation theory and combined with practical projects, the effects of rainfall on the stability of expansive soil landslide were researched. Indoor experiments were done to analyze the relationship between landslide seepage properties,matric suction and volumetric water content. The finite element software Geo-Studio was adopted to obtain expansive soil volumetric water content theta：24.8 %, 24. 1%, 23.5 %, 22.6 %, and the safety factor of the slope under conditions of rainfall and that under conditions of no rainfall were respectively 1. 620 and 2. 141. The research shows that rain lowers stability of landslide mass. |
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| Keywords: | Expansive soil Landslide Finite element analysis Percolation theory |
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