水库蓄水后岸坡稳定性分析评价

Analysis of the Seepage Deformation Stability of the Slopes after a reservoir built

在水库的蓄水过程中,水库的上下游水位的大幅度抬升,使得库区岸坡岩体的水文地质条件较天然情况有很大变化,故在天然情况下稳定的岸坡,蓄水后是否会发生失稳破坏?如若库区存在对岸坡稳定不利的断层,这时必须对蓄水后岸坡的稳定性进行分析评价。本文以糯扎水渡水利工程为例,对不同情况下有可能破坏的岸坡进行分析计算,结果表明,岸坡较为稳定。

When an artificial reservoir is built, the water level of the upper will raise considerably and the groundwater level and the hydraulic gradient of the lower will be higher than the original state. The slopes are stability in natural condition whether can happen seepage deformation when an artificial reservoir is built？ Especially there are some faults that are broken in the slopes area; the stability analysis of the slopes must be done. This paper analyses and calculates all slopes damaged available under different conditions taking Nuozadu power plant as a example, but the result indicates the slopes are stability.