Abnormal Problem Analysis of Dam Foundation Uplift Pressure of High Arch Dam
Seepage characteristics is an important content to reflect the operation behavior of hydraulic engineering.After three years of storage and operation,the seepage characteristics of a high arch dam show some abnormal phenomena.Based on seepage pressure monitoring data of the project,and through the statis-tical model modeling analysis combined with the environmental data,the influence of water pressure,rainfall,temperature and aging on the uplift pressure of the dam foundation is quantitatively analyzed and evaluated.Taking 2019 as a typical year,the amplitude proportion of each component of the effect quantity is calculat-ed,and it is concluded that due to the influence of rainfall,water permeates to dam foundation through mi-cro-fissure,resulting in abnormal uplift pressure.The analysis idea in this paper can provide reference for the analysis of monitoring data of similar projects.
high arch damsafety monitoringseepage pressuredam foundation uplift pressurestatistical model
万方数据
维普
