摘要
坝基渗流状态是判断面板堆石坝防渗效果和安全状态的主要依据。采用过程线分析和分布分析对某面板堆石坝蓄水期坝基渗流特性进行了定性分析,由统计模型对坝基渗流影响因素进行了定量分析,并对防渗帷幕后P2渗压计实测渗压水位偏高的问题进行了综合分析,认为P2实测渗压水位偏高仅为局部现象,不会对该面板堆石坝安全状态产生危害。
The seepage state of the dam foundation is the main basis to determine the seepage control performance and the safety of a concrete face rockfill dam.In this paper,the foundation seepage characteristics of a concrete face rockfill dam during the storage period is analyzed qualitatively using the process line analysis and distribution analysis methods.The influencing Factors of the foundation seepage are quantitatively determined by statistical model.Specifically,the abnormal high water pressure measured by the P2 osmometer behind the impervious curtain is analyzed.The results show that the measured high water pressure is only a local phenomenon and will not threaten the safety of the dam.
作者
张成
牟猷
ZHANG Cheng;MOU You(School of Water Resources and Hydropower Engineering,Wuhan University,Wuhan 430072,China)
出处
《水电与新能源》
2019年第9期23-27,共5页
Hydropower and New Energy
基金
国家自然科学基金项目(51379162)
广东省水利科技创新项目(2016-06)
关键词
面板堆石坝
蓄水期
渗流监测
统计模型
concrete face rockfill dam
storage period
seepage monitoring
statistical model
