Analysis of Abnormal Uplift Water Pressure in the Dam Foundation of Hua'an Hydropower Station
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 Hy-dropower 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 evalua-ted.The results provide useful reference for the analysis of abnormal uplift pressure in similar dam foundations.
dam monitoringuplift pressure in dam foundationpermeability coefficientanomalystatistical model