| 滇西典型土质滑坡饱和-非饱和渗流稳定性研究 |
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| 引用本文： | 周志超,李向全,蒋良文,侯新伟,刘玲霞.滇西典型土质滑坡饱和-非饱和渗流稳定性研究[J].湖南科技大学学报(自然科学版),2010,25(1). |
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| 作者姓名： | 周志超 李向全 蒋良文 侯新伟 刘玲霞 |
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| 作者单位： | 1. 中国地质科学院,水文地质环境地质研究所,河北,石家庄050061
2. 中国中铁二院工程集团有限责任公司,四川,成都,610031 |
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| 基金项目： | 中国地质科学院水文地质环境地质研究所基本科研业务专项，铁道部科技研究开发计划项目 |
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| 摘 要： | 降雨是滇西土质滑坡灾害的主要诱发因素,而滑坡土体中孔隙水压力的存在使得岩土体的力学性状变得更加复杂.选择滇西红层典型土质滑坡-思铺滑坡做深入的调查,考虑降雨入渗的影响,基于饱和-非饱和渗流理论,选择9月份的降雨量监测资料,对强降雨条件下思铺滑坡地下水动态渗流场进行了数值模拟,将其孔隙水压力结果用于滑坡稳定性分析.同时,又基于非饱和土强度理论,采用GLE通用条分法,对滑坡稳定性的时空效应进行了评价,从而得出降雨入渗与土质滑坡的内在联系:滑坡稳定性与其渗流滞后性有较好的对应关系,最危险滑动面随含水量不同而呈空间的演变.
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| 关 键 词： | 降雨入渗 土质滑坡 数值模拟 饱和-非饱和渗流 |
Stability analysis of typical soil slope based on saturated and unsaturated seepage in the west of Yunnan Province |
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| ZHOU Zhi-chao,LI Xiang-quan,JIANG Liang-wen,HOU Xin-wei,LIU Ling-xia.Stability analysis of typical soil slope based on saturated and unsaturated seepage in the west of Yunnan Province[J].Journal of Hunan University of Science & Technology(Natural Science Editon),2010,25(1). |
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| Authors: | ZHOU Zhi-chao LI Xiang-quan JIANG Liang-wen HOU Xin-wei LIU Ling-xia |
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| Institution: | ZHOU Zhi-chao1,LI Xiang-quan1,JIANG Liang-wen2,HOU Xin-wei1,LIU Ling-xia1 (1.Institute of Hydrogeology & Environmental Geology,CAGS,Shijiazhuang 050061,China,2. China Railway Eryuan Engineering Group Co.Ltd,Chengdu 610031,China) |
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| Abstract: | Rainfall is the important factors that induce landslide hazard in the west of Yunnan province,in fact,it is very difficult to analyze the mechanical behaviors of soil because of the pore water pressure's existence.Based on the in-depth investigation,the typical soil slope which called Sipu slope in the west of Yunnan province was chosen.The saturated -unsaturated seepage theory was introduced;numerical simulation on groundwater seepage in Sipu slope under persistent rainfall condition was studied according ... |
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| Keywords: | rainfall infiltration oil slope numerical simulation saturated- unsaturated seepage |
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