摘要
降雨是诱发滇西土质滑坡灾害的主要因素,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,利用有限元方法,对强降雨条件下思铺滑坡地下水渗流场动态进行了数值模拟,得到了滑坡地下水压力水头、总水头变化、流速的变化规律,为滑坡的稳定性分析和滑坡预测提供重要的分析数据。
Rainfall is the important factor that induces the landslide hazard in the west of Yunnan prov-ince.The typical soil landslide called Sipu landslide in the west of Yunnan is investigated.Based on the saturated-unsaturated seepage theory and the finite element method,the numerical simulation on the groundwater seepage in the landslide under heavy rainfall condition is studied.The variation laws of the slope seepage field during rainfall are given.The study could provide the important data for Sipu slope sta-bility analysis and the landslide prediction.
出处
《工程勘察》
CSCD
北大核心
2010年第7期32-36,41,共6页
Geotechnical Investigation & Surveying
基金
中央级公益性科研院所基本科研业务专项(sk07025)
铁道部科技研究开发计划项目(2008G027-A)
关键词
降雨入渗
土质滑坡
数值模拟
饱和-非饱和渗流
rainfall infiltration
soil landslide
numerical simulation
saturated-unsaturated seepage
