泉河大峡水电站大坝安全监测成果分析

Analysis of the Dam Safety Monitoring Data of Quanhe Daxia Hydropower Station

大峡水电站大坝安全监测系统的布置,采用了作图法和特征值统计法分析了大坝位移、扬压力及渗漏情况表明,大坝表面位移、坝基扬压力及大坝渗漏量基本正常,Ⅴ坝段坝基渗压系数大于规范允许值。据此提出了工程隐患及运行管理注意事项,为工程安全运行提供了保证,也可供同类工程监测资料分析参考。

The layout of the dam safety monitoring system in Daxia Hydropower Station is introduced.Then,the displacement,uplift pressure,and leakage of the dam are analyzed using the graphic method and the characteristic value statistical method.The results show that the surface displacement of the dam body,the uplift pressure on the dam foundation,and the leakage of the dam are basically normal,while the seepage pressure coefficient of the dam foundation in section V is greater than the allowable value in the specifications.Thus,suggestions on the engineering hazards and operation management issues are proposed correspondingly,which ensure the safety operation of the project.It can be useful reference for the analysis of monitoring data of similar projects.