贵州某电站坝址工程地质评价

Engineering Geological Evaluation of the Dam Site of a Hydropower Station in Guizhou

贵州某电站坝址位于乌江左岸一级支流洪渡河上,经初步勘察显示,工程区范围无活动断层,且无破坏性地震发生,相应地震基本烈度为小于Ⅵ度,区域构造稳定性好。库区内局部库岸危岩体总体规模不大,现阶段认为对大坝安全无影响,但下阶段尚需进一步查明其稳定条件。

The dam site of a hydropower station in Guizhou is located on the Hongdu River,a first grade tributary on the left bank of Wujiang River.The preliminary investigation shows that there are no active faults and no destructive earthquakes occurring in the engineering area,and the corresponding basic earthquake intensity is less than Ⅵ degree.The regional tectonic stability is good.The total scale of local reservoir banks is not large in the reservoir area.At present,it is considered that there is no effect on dam safety,but it is necessary to further find out the stability condition of the dam in the next stage.