华安水电站大坝坝基扬压水位异常现象分析  

Analysis of Abnormal Uplift Water Pressure in the Dam Foundation of Hua’an Hydropower Station

作　　者：施玉群[1] 何金平[1] 赵和木 吴皓珉 SHI Yuqun;HE Jinping;ZHAO Hemu;WU Haomin(School of Water Resources and Hydropower Engineering,Wuhan University,Wuhan 430072,China;Hua’an Hydropower Plant,Fujian Huadian Furui Energy Development Co.,Ltd.,Hua’an 363800,China)

机构地区：[1]武汉大学水利水电学院,湖北武汉430072 [2]福建华电福瑞能源发展有限公司华安水力发电厂,福建华安363800

出　　处：《水电与新能源》2024年第9期35-38,共4页Hydropower and New Energy

基　　金：国家自然科学基金项目(51379162);国家重点研发计划(2018YFC0406906)。

摘　　要：坝基扬压力监测是确保混凝土重力坝安全运行的重要手段,坝基渗压系数是评价混凝土重力坝稳定性的重要指标。华安水电站大坝坝基布置的11个测压孔中,UP8测压孔实测扬压水位明显偏高,表现异常。通过现场测试、资料分析和统计模型等方法,分析了UP8测压孔扬压水位偏高的可能原因,评价了对大坝稳定性的影响,为同类大坝坝基扬压力异常现象分析提供了有益的参考。Monitoring of the uplift pressure in the dam foundation is an important approach to ensure the safe operation of concrete gravity dams,and the permeability coefficient of the dam foundation is a significant indicator to evaluate the stability of the dams.Among the eleven uplift pressure measurement holes arranged in the dam foundation of Hua’an Hydropower Station,the measured uplift water level in UP8 is abnormally high.Through on-site tests,data analysis and statistical model analysis,possible reasons for the anomaly are discussed and the impact on the dam stability is evaluated.The results provide useful reference for the analysis of abnormal uplift pressure in similar dam foundations.

关 键 词：大坝监测 坝基扬压力 渗压系数 异常 统计模型 

分 类 号：TV698[水利工程—水利水电工程]