猴子岩水电站进水口洞脸边坡稳定性分析  

Study on stability of the tunnel-face slope at Houziyan Hydropower Station

作　　者：范永波[1] 伍法权[1] 王根龙[1,2] 张颖[3] 焦廷朝[3] 

机构地区：[1]中国科学院地质与地球物理研究所工程地质力学重点实验室,北京100029 [2]中国地震局防灾科技学院防灾工程系,河北三河065201 [3]中海油田服务股份有限公司,天津300452

出　　处：《中国地质灾害与防治学报》2009年第3期35-39,共5页The Chinese Journal of Geological Hazard and Control

摘　　要：猴子岩进水口洞脸边坡高约180m,由于开挖所形成的边坡属于高陡边坡,其开挖后的稳定状况会极大影响引水系统的正常运行。通过对该边坡平洞揭露裂隙特征及地表工程地质条件的系统调查,对边坡的岩体结构类型及其结构面、断层与坡面组合特征进行了细致研究,在此基础上对可能的滑面组合采用刚体极限平衡法进行计算。最后对边坡的安全稳定性进行了评价。The tunnel-face Side Slope at Houziyan hydropower station is one hundred and eighty meters high. Because of the high and steep slope brought by excavation, its stability greatly influenced the running of water diversion system. Based on the survey of crack characteristics and geological conditions of the slope, we studied the rock mass structure style and the combination of characters of structure planes, faults, slope surface. We calculated the stability coefficient with different crack combinations for the tunnel-face side slope with rigid limit equilibrium method. We assessed the stability of the slope.

关 键 词：高边坡 结构面组合 稳定系数 猴子岩水电站 

分 类 号：P642[天文地球—工程地质学]