万安水电站土石坝坝体渗流特性分析  

Seepage Analysis of the Embankment Dam in Wan'an Hydropower Station

作　　者：彭正权 施玉群[1] PENG Zhengquan SHI Yuqun(School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan 430072, Chin)

机构地区：[1]武汉大学水利水电学院,湖北武汉430072

出　　处：《水电与新能源》2017年第3期64-67,共4页Hydropower and New Energy

摘　　要：渗流特性是反映土石坝运行性态的重要内容。依据万安水电站土石坝坝体测压管渗压水位监测资料,从渗压水位变化过程、渗压水位与上游水位相关性、坝体浸润线和心墙渗透坡降等方面,对大坝渗流特性与渗流状态进行了分析与评价。研究表明,万安水电站土石坝坝体渗压水位变化规律和坝体浸润线状态合理,心墙防渗效果较好,坝体渗流特性正常。Seepage state is an important index to reflect the operational condition of embankment dams. According to the monitoring data on piezometric levels,the seepage characteristics of the embankment dam in Wan＇an Hydropower Station are analyzed,including the variation process of piezometric levels,correlation between piezometric levels and upstream water levels,phreatic line in the dam body and seepage gradient in the core wall. The seepage state of the dam is then evaluated. The results show that the seepage characteristics of the dam are normal as the variation of the seepage pressure water level and the phreatic line are reasonable,and the seepage-proof performance of the core wall is fine.

关 键 词：土石坝 渗流特性 测压管 渗压水位 浸润线 

分 类 号：TV649[水利工程—水利水电工程]