【摘要】 三峡水库2003年蓄水以来,滑坡将可能成为三峡库区最严重的地质灾害之一。库水位下降和暴雨是导致滑坡的主要因素。以三峡库区典型古滑坡泄滩滑坡为例,根据库水位调控方案,利用二维极限平衡法对滑坡稳定性进行了研究分析。研究表明,库水位上升期间,滑坡体基本稳定,下降期间安全系数不高,处于极限平衡状态。更多还原

【Abstract】 Landslide is one of the most serious geological hazards in the Three Gorges reservoir regions.Since the reservoir was in operation in 2003,both reservoir water level descending and rainstorm infiltration have become major factors that affect the stability of landslides.This paper takes Three Gorges reservoir landslide-Xietan Landslide in ancient times for example,according to the options of water level operation,analyzes landslide stability by using Limited Equilibrium Method,the results of stability analysis show that during water table ascent period,slope is stabe and during water table descent period,safety coefficient is low and landslide is in the situation of limited equilibrium.更多还原