块体理论在某水电站边坡稳定性评价中的应用  

Application of block theory in analysis of slope stability for a hydropower project

作　　者：何伟[1] 刘秀平[1] 陈科文[1] 

机构地区：[1]四川大学水利水电学院,四川成都610065

出　　处：《广西水利水电》2008年第6期22-25,共4页Guangxi Water Resources & Hydropower Engineering

摘　　要：大渡河某水电站泄水建筑物进水口边坡岩体破碎,不连续面发育,存在较多断层和节理,确定其边坡是否有可动块体并判断其稳定性具有重要工程实际意义。通过对工程区岩体的地质勘察资料的详细研究,运用块体理论赤平解析法搜索关键块,明确该水电站进水口边坡的不稳定块体的几何特征与稳定性,从目前研究结果看:边坡总体稳定性较好,支护方案合理。The water intake portion of the discharge structure of one hydropower station on Dadu river falls in an area where the side slope has consists of fractured rock mass, developed discontinuous plane, much faults and joints, so it is of practical value to make certain whether there are unstable blocks and assess the stability of side slope. Based on a thorough study of the geological survey data about the rock mass in project area, the key blocks were searched by stereo-projection method of block theory, and the geometry characteristic and stability of unstable blocks on the side slope at water intake were also ascertained. The results of study indicate that the side slope has relatively good overall stability and the support scheme is proper.

关 键 词：块体理论 赤平解析法 岩体 边坡 稳定性 

分 类 号：TU457[建筑科学—岩土工程]