Analysis of Seepage Monitoring Data of a Concrete Gravity Dam
MA Hou
Abstract：The seepage state is an important indicator reflecting the stable operation of concrete gravity dam,and plays an important role in mastering the working behavior.The variation law of dam seepage and the impact of components such as water pressure,rainfall,temperature,and time on seepage safety were studied through historical measurements and characteristic value analysis of monitoring data,as well as modeling analysis using stepwise statistical regression models.The results showed that the dam seepage monitoring facilities were complete,and some of the dam foundation uplift pressure measurements showed a gradually increasing trend.There was no seepage around the dam on the left and right banks,and the total seepage of the dam gradually tended to stable.The stepwise regression statistical model had a high overall fit with the measured data,and the proportion of each component could reflect the real situation.In addition to the time component,the measurement points with trend changes were mainly affected by the upstream and downstream water levels,and it was necessary to focus on the water level change.
Keywords：concrete gravity damseepage monitoringdata analysisstepwise regression statistical model
Publication Date：2024-11-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 102-106,112 )