王英水库大坝坝体渗流监测资料分析

Analysis of seepage monitoring data of Wangying Reservoir Dam

本文对2006—2016年王英水库大坝坝体测压管渗压水位数据进行整理,采用过程线、特征值、相关性、防渗性、渗透特性、统计模型等方法综合分析,结果表明:坝体各测压管实测渗压水位精度一般,变化规律基本符合心墙土坝坝体渗流的一般规律。但防渗心墙削减水头的比率呈下降趋势,坝体心墙渗透坡降允许值较小,在高水位运行时存在破坏风险,坝体渗流特性一般。

The osmotic pressure water level data of piezometric tube of Wangying Reservoir Dam from 2006 to 2016 is sorted in the paper.The process line,characteristic value,relevance,seepage control,seepage features,statistic model and other methods are comprehensively analyzed.The results show that the actually measured osmotic pressure water level precision by all piezometric tubes in the dam is general.The variation law is basically in line with the general rule of core wall dam seepage.However,the ratio of water head reduction of the anti-seepage core wall is decreasing,the allowable seepage slope reduction of the dam core wall is small,there is a risk of damage in high water level operation,and the seepage characteristics of the dam are general.