锦屏二级水电站过水围堰溃堰风险分析  

Cofferdam-break Risk Analysis of Overflow Cofferdams for JinPing Ⅱ Hydropower Station

作　　者：李军[1] 任金明[1] 刘全[2] 蔡建国[1] 吴世东[1] 程开宇[1] 

机构地区：[1]中国水电顾问集团华东勘测设计研究院,浙江杭州310014 [2]武汉大学水利水电学院,湖北武汉430072

出　　处：《水电能源科学》2011年第4期102-104,共3页Water Resources and Power

基　　金：国家十一五科技支撑计划基金资助项目(2008BAB29B02);国家自然科学基金资助项目(10902078)

摘　　要：基于锦屏二级水电站过水围堰结构和运行特征,分析了溃堰工况与风险因素,获得了溃堰洪水对锦屏二级工程自身、堰前库区至下游梯级电站范围内的河道影响程度。实例结果表明,该研究对土石过水围堰的防冲设计和溃堰洪水对下游梯级影响评估有一定指导意义。Based on the structure and operation features of overflow cofferdam of Jinping Ⅱ Hydropower Station,the cofferdam-breaking conditions and its risk factors are analyzed.And it analyzes the influence of cofferdam-break flood on project itself and channel from the reservoir of cofferdam to the downstream cascade hydropower station.It proves by a case that the study has references for anti-scour design of overflow cofferdams and evaluation of cofferdam-break flood influencing on cascade hydropower stations.

关 键 词：溃堰 风险分析 过水围堰 锦屏二级水电站 

分 类 号：TV551.3[水利工程—水利水电工程]