杨房沟水电站左岸坝肩块体稳定性分析  

Block Stability Analysis of Left Bank Abutment of Yangfanggou Hydropower Station

作　　者：侯迪[1] 刘广[1] 李颂章[1] 罗林[1] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072

出　　处：《水电能源科学》2012年第12期114-116,64,共4页Water Resources and Power

基　　金：国家自然科学基金资助项目(50979081);国家重点基础研究发展计划(973计划)基金资助项目(2011CB013501;2011CB732005);教育部新世纪人才基金资助项目(NCET-11-0406)

摘　　要：为评价杨房沟水电站坝肩稳定性,分析了杨房沟水电站左岸坝肩地形地貌特征、地层岩性、地质构造等工程地质条件,根据虚功原理推导规则块体稳定性公式,结合工程实际提出计算不规则块体的方法,在分析危险块体组合的基础上计算了典型块体安全系数,建议对局部不稳定或稳定性较差的部位采用锚固、护坡排水、坡面排水、置换、灌浆等措施。In order to evaluate the stability of abutment of Yangfanggou hydropower station, engineering geological conditions of left bank abutment are investigated, which includes landform features, stratigraphic lithology and geological structure. According to the principle of virtual work, stability formula of regular block is deduced. Then the method of calculating irregular block is putted forward by combining the actual project. Based on the analysis of combination of dan- gerous blocks, the safety factor of typical block is calculated. Finally, some suggestions for handling local instability posi- tion are putted forward, such as anchoring, slope protection drainage, slope drainage, replacement and grouting.

关 键 词：边坡稳定 虚功原理 块体稳定性 杨房沟水电站 

分 类 号：TV223.3[水利工程—水工结构工程] TU457[建筑科学—岩土工程]