Research on Deformation Monitoring of Upper Reservoir Dam of Shenzhen Storage Power Station based on InSAR and Beidou
This paper addresses the issues faced by pumped storage power stations,such as severe daily water level fluctuations and poor continuity and real-time performance in dam deformation monitoring.Taking Shenzhen pumped storage power station as an example,based on synthetic aperture radar interferometry and Beidou dam deformation monitoring technology,the settlement field and settlement law of 6 dams and their bank slopes in the past 5 years are obtained through InSAR historical data analysis,and the Beidou deformation monitoring system is built;the deformation law and change trend of the dam in the early operation process of Shenzhen pumped storage power station are analyzed.The results show that the historical settlement analysis by using the time-series InSAR analysis technique is reasonable and effective,the accuracy can reach the millimeter level,and the maximum cumulative deformation of the No.1 auxiliary dam reaches 22 mm.The application of Beidou technology realizes single-point automatic three-dimensional deformation monitoring,and the accuracy meets the requirements of earth-rock dam monitoring.The two monitoring methods provide data support for the analysis and evaluation of dam safety and the optimization of subsequent dam safety monitoring design,and have reference significance for other pumped storage power station deformation monitoring.
InSARBeiDoudeformation monitoringShenzhen Storage Power Station
万方数据
维普
