Research On The Applications Of Groud-based Radar Used In Monitoring Projects For Dams And Landslides

Deformation monitoring is an important supporting means for the stability analysis of Bridges,high-rise buildings and other structures,as well as the monitoring of geological disasters such as landslides and surface subsidence.Through the analysis and research of the monitoring results,it is very beneficial to further understand the deformation rule of the deformation of the deformation.There are some advantages for the ground based Radar(GBR)systems,such as locality,all-day and all-weather working,continuous monitoring,portability,flexible installation and so on.The data acquisition work can be done in a safe area because of the non-contact measuring mode of the system,and the monitoring accuracy is submillimeter level.The ground based Radar system is an effective supplementation for the common monitoring methods,and has a widely application and is prospective.In this thesis,a ground based Radar system,IBIS-L,is applied for experiments.The application methods of the GBR system in bridges,dams and landslides monitoring are studied,and the methods for data processing and analyzing are discussed.The main contents are as follows:(1)The accuracy tests for the GBR system are described.The IBIS-L system is used in the experiments,and some plans are designed for IBIS-L to test the accuracy and reliability of the measurements.(2)The applications of the GBR system are studied.The GBR system is applied in some monitoring projects for dams and landslides,and the state and stability of the targets are analysed with the monitoring data.The first experiment is made in Geheyan Dam.The advantages of the GBR system used in dams monitoring projects are introduced,the data processing procedures are illustrated,and both the affacts caused by environment fators and the states of the dam body during the monitoring periods are analyzed.The second experiment is made in Huangdeng hydroelectric station.The applications of the GBR systems used in landslides monitoring are introduced,and the states of the cableway platform slope and the tailrace slope are analyzed with the monitoring data.