| 非饱和均质砂土边坡降雨入渗和稳定性分析 |
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| 引用本文： | 王立,夏力农,胡海涛.非饱和均质砂土边坡降雨入渗和稳定性分析[J].湖南工程学院学报(自然科学版),2014,24(4):52-56. |
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| 作者姓名： | 王立 夏力农 胡海涛 |
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| 作者单位： | 1. 湘潭大学土木工程与力学学院,湘潭,411105
2. 湘潭大学土木工程与力学学院,湘潭411105;长沙学院土木工程系,长沙410003 |
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| 基金项目： | 长沙学院引进人才科研资助项目 |
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| 摘 要： | 为了研究降雨入渗诱发滑坡的机制,通过选取典型的土性参数,利用有限元法使用软件SEEP/W对均质砂土边坡进行饱和一非饱和渗流分析,模拟边坡降雨入渗的全过程,得到降雨入渗过程的入渗量、浸润深度和含水率的瞬态分布,再利用Bishop法使用软件SLOPE/W进行边坡稳定性分析,搜索并计算最危险滑动面,得到该类型边坡的瞬态安全系数.
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| 关 键 词： | 非饱和土 降雨入渗 均质细砂 数值模拟 |
Analysis of Rainfall Infiltration and Slope Stability of Unsaturated Homogeneous Sand |
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| WANG Li,XIA Li-nong,HU Hai-tao.Analysis of Rainfall Infiltration and Slope Stability of Unsaturated Homogeneous Sand[J].Journal of Hunan Institute of Engineering(Natural Science Edition),2014,24(4):52-56. |
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| Authors: | WANG Li XIA Li-nong HU Hai-tao |
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| Institution: | WANG Li, XIA Li-nong, HU Hai-tao (1. School of Civil Engineering and Mechnics,Xiangtan University,Xiangtan 411105, China; 2. Department of Civil Engineering Changsha College,Changsha 410003, China) |
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| Abstract: | In order to study the mechanism of landslides induced by rainfall infiltration, this study, based on the finite element method, uses software SEEP W to analyze saturation-unsaturated seepage of the homogeneous sand slope by selecting typical soil parameters,and simulates the whole process of rainfall in- filtration. The infiltration capacity, infiltration depth and water content distribution due to rainfall infiltra- tion are calculated, Software SLOPE / W is used to analyze slope stability. The most dangerous sliding surface is found and its transient stability factor is calculated. |
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| Keywords: | unsaturated soil rainfall infiltration homogeneous sand numerical simulation |
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