摘要
卧沙溪滑坡是三峡库区变形严重的典型滑坡之一.基于近年来该滑坡GPS位移监测成果、库区降雨和库区水位变化等相关资料,通过分析滑坡位移、变形速率和宏观裂缝监测数据,研究滑坡变形特征及滑坡影响因素.研究结果表明：该滑坡近几年累积位移时间曲线于每年的4～6月期间呈周期性、阶跃性特征;库水位下降和库水位浸泡是引起卧沙溪滑坡位移变形的主要影响因素,降雨加剧滑坡变形;按照滑坡机理分类,该滑坡属于动水压力型与浸泡软化型的复合型滑坡.
Woshaxi Landslide is one of the severest deformed typical landslides. The deformation characteris- tics and inducing factors of the landslide are researched based on recent GPS displacement monitoring data of the landslide, reservoir area rainfall data, reservoir water level changes and other relevant information and through the analysis of landslide displacement, deformation rate and macro-crack monitoring data. The re- search results show that the cumulative time-displacement curve in recent years presents periodic step charac- teristics during April to June of each year. Reservoir water level drawdown and water immersion are the main influencing factors on the displacement of the landslide, and rainfall accelerates the landslide deformation. In the classification of landslide mechanism, it belongs to the complex landslide of hydrodynamic pressure and immersion softening type.
出处
《三峡大学学报（自然科学版）》
CAS
2014年第3期66-70,共5页
Journal of China Three Gorges University：Natural Sciences
基金
国家自然基金项目资助(41272310)
关键词
卧沙溪滑坡
库水位
降雨
三峡库区
Woshaxi Landslide
reservoir water level
rainfall
Three Gorges reservoir area
