旭龙水电站苏洼龙-穷得库段库岸稳定分析

Analysis of reservoir bank stability of Suwalong-Qiongde section of Xulong Hydropower Station on Jingsha River

苏洼龙-穷得库段位于金沙江旭龙水电站库尾一带,其地质条件极为复杂,25 km长的库段发育了大量洪积、冲积、崩坡积、冰积、滑坡体等第四系库岸,其库岸稳定性直接影响整个库区以及水库正常运行。通过对该段库岸各段的地质条件以及稳定性进行分析总结,得出库岸稳定性的影响因素,以此为水库区综合评价及正常蓄水位的选择提供地质参考。

Suwalong - Qiongde section is located at the tail area of Xulong Hydropower Station on Jinsha River, where the geo- logical conditions are rather complicated. As large quantities of Quaternary deposits consisting of proluvium, alluvium, colluvi- urn, glacial sediment, and landslide mass develop along the 25 - kilometer - long reservoir section, the stability of the reservoir banks has direct effect on the normal impoundment level of the reservoir and the whole reservoir area. Through analysis of the ge- ological conditions and stability of different sections along the reservoir banks, the factors affecting the stability of the reservoir banks are summarized, which provides geological reference for the comprehensive assessment of the reservoir area and the deter- mination of the normal impoundment level of the reservoir.