Research on backtracking of dam failure at Xe Pian-Xe Namnoy reservoir in Laos based on time series InSAR
InSAR is a new technology for surface displacement monitoring of reservoir dams,which has periodicity,low delay,and the ability to backtrack historical data.By using satellite images of Xe Pian-Xe Namnoy reservoir dam before and during the dam failure period and collecting the surface displace-ment monitoring data and rainfall data before and after dam failure,the reasons for dam failure in terms of dam itself and management are analyzed.Results show that there has been an obvious abnormal defor-mation trend before dam failure.This study introduces InSAR technology into dam risk management,which can effectively reduce the occurrence of dam failure accidents.
NETL
NSTL
万方数据
