贵州省石朱桥水库左岸滑坡成因机制分析

Analysis on Genetic Mechanism of Landslide on the Left Bank of Shizhuqiao Reservoir in Guizhou

石朱桥水库被动蓄水后库区左岸新出现2处滑坡体,其连同之前1处老滑坡体均有加速发展的趋势,目前尚未对滑坡的诱发因素及成因机制做过分析。通过现场勘查及收集资料的综合分析,认为滑坡发育地段自然地理、地质和水工环地质条作为主要内因,水库被动蓄水、降雨等条件为主要外因共同作用而诱发滑坡。

After the passive impoundment in Shizhuqiao Reser- voir, two new landslides arose on the left bank. The two new ones together with the old one have an accelerating developmental ten- dency, but to date there has no inducing and causing factor or mechanism analysis for the landslides. Now through the field sur- vey and comprehensive analysis to the collecting materials, it is considered that physical geography conditions, geological condi- tions, and engineering and environment conditions as major inter- nal causes, combined with passive impoundment and rainfall as major external cause jointly induced landslides.