库水浸泡后滑坡体中水分布的实验研究  

EXPERIMENTAL STUDY ON WATER DISTRIBUTION IN LANDSLIDE WITH RESERVOIR TABLE CHANGED

作　　者：刘曰武[1] 宫欣[1] 张大为[1] 陈慧新[1] 

机构地区：[1]中国科学院力学研究所工程科学部,北京100080

出　　处：《力学与实践》2004年第4期21-24,共4页Mechanics in Engineering

基　　金：中国科学院重点项目(KJCX2-SW-1);"973"项目(2002CB412703)资助

摘　　要：建立了室内模拟库水浸泡后滑坡体内水润湿的渗流实验装置,根据清江茅坪滑坡的地形、地貌以及岩土混合比例,填制了岩土体实验模型,模拟了水位在涨至模拟坡体凌空面一半高度和水位漫过凌空面达到第一平台高度时,坡体内的水分布情况。在水位降落实验过程中,岩土体部分失稳,证明了润湿滞后在降水期滑坡中起主要作用。The experimental equipment is established for simulating water distribution in landslide with reservoir table changed. The laboratory model is made based on the shape, geometric characters and soil-rock ratio of Maoping slide. The water distributions in the simulated slide are simulated with water table at the half height of the soared interface and the height of the first platform. When the reservoir table drops down in the experiment, a part of the slide fails. The results show that wetting lagging is the main factor of slide failure during the reservoir table drop-down.

关 键 词：水库 滑坡 水位分布 实验模型 渗流实验装置 润湿滞后 

分 类 号：TV62[水利工程—水利水电工程]