IMECH-IR  > 水动力学与海洋工程重点实验室(2009-2011)
降雨引起的坡体响应数值模拟
叶天立; 鲁晓兵; 崔鹏
Source Publication2011年全国工程地质学术年会论文集
2011
Pages20-25
Conference Name2011年全国工程地质学术年会
Conference Date2011
Conference Place中国青海西宁
Abstract利用北川地区土性参数和地形条件,对降雨作用下的渗流特性进行了数值模拟。采用修正的Mohr-Coulomb模型,引入了非饱和理论用于饱和-非饱和渗流的分析。通过数值模拟得出了土体饱和度、孔隙水压力分布及其随降雨历时的变化情况,使得对降雨坡体失稳问题的认识更加直观和清楚。土体饱和度增加,孔隙水压力增大,基质吸力减小,使得土体抗剪强度不断减小甚至丧失,促进坡体失稳和泥石流或滑坡的发生。
Keyword降雨 泥石流 非饱和土 数值模拟
DepartmentLMFS海洋土力学(LHO)
Funding Organization中国地质学会工程地质专业委员会、中国地质调查局、青海省国土厅
URL查看原文
Language中文
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/45230
Collection水动力学与海洋工程重点实验室(2009-2011)
Corresponding Author叶天立
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叶天立,鲁晓兵,崔鹏. 降雨引起的坡体响应数值模拟[C],2011:20-25.
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