某水库大坝及涵洞渗流监测分析与安全性评价  

Seepage Monitoring Analysis and Safety Evaluations for Dam and Culvert of a Reservoir

作　　者：李新[1] 王庆勇[1] 魏波[1] 

机构地区：[1]新疆额尔齐斯河流域开发工程建设管理局,新疆维吾尔自治区乌鲁木齐市830000

出　　处：《水电自动化与大坝监测》2012年第4期72-75,共4页HYDROPOWER AUTOMATION AND DAM MONITORING

摘　　要：从某水库大坝和涵洞监测断面的地基、换填砾质土、截渗槽的工程特性和土料特性出发,根据渗流监测成果,对中坝和涵洞部位渗流情况进行了详细分析。然后,对这些部位的渗流进行了相关性分析、渗径推断和平均渗透系数推算;根据监测的异常渗流过程,判断了异常渗流原因,对大坝和涵洞进行了安全性评价。目前,该水库大坝和涵洞仍处于渗流稳定过程中,经回归分析,坝体和坝基渗压水位的主要影响因素是库水位,出现的异常渗流情况还不至于对大坝和涵洞的安全运行产生危害,有待继续跟踪监测。According to the characteristics of earth materials and the engineering characteristics of the monitoring ground, replaced fills in gravelly soil and cutoff trench, the seepage of the dam and the culvert in a reservoir is analyzed based on the results of seepage monitoring. The seepage of the dam and the culvert is analyzed by means of the correlation analysis, the seepage path inference and the average penetration coefficient calculation. According to the monitored unusual seepage process, the reason is judged, and the safety of the dam and the culvert is evaluated. Currently, the dam and the culvert are still in the process of stable seepage. Through the regression analysis, the main factor of seepage pressure level of the dam and dam foundation is the water level. There is no abnormal seepage damage to the safety of the dam and the culvert, and it needs to be continuously tracked and monitored.

关 键 词：渗流监测 相关性分析 渗透系数 安全性评价 

分 类 号：TV698.23[水利工程—水利水电工程]