摘要
双江口水电站左岸坝肩边坡部位无区域性断裂通过,由坚硬完整的黑云母钾长花岗岩组成,岩体风化卸荷较浅,通过地质特征分析,结合赤平投影分析和极限平衡法稳定性计算,左岸坝肩自然边坡和工程边坡总体较稳定。仅局部存在小型拉裂岩块和危石,应进行锚固或清除处理。
There isn’t any regional fault on the left dam abutment side slope of Shuangjiangkou hydropower station,which is formed by the hard complete biotite kali-feldspar granite weathered lightly.According to geological feature analysis,in combination with stereographic projection analysis and limit equilibrium method stability calculation,the left bank dam abutment natural side slope and engineering side slope are stable in general.There are only the local small tensile break and damage stone block,which must be anchored or removed.
作者
余庆
YU Qing(Yunnan Bureau of Coalfield,Kunming 650034)
出处
《云南地质》
2019年第2期251-255,共5页
Yunnan Geology
关键词
坝肩边坡
稳定性分析
防治建议
四川阿坝双江口
Side Slope of Dam Abutment
Stability Analysis
Protection Suggestion
Shuangjiangkou,Aba,Sichuan
