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To monitor the deformation of the WLL reservoir dam area, the deformation information of the WLL reservoir dam area and surrounding areas from October 2014 to October 2020 was obtained based on SBAS technology, and the monitoring results were verified by leveling data. According to the results, it can be seen that there is a 5.7 km subsidence zone in the middle of the dam, and the subsidence rate along the radar direction is between-20--30 mm/a. Three velocity subsidence filters are found in the industrial area around the reservoir; The maximum subsidence rate is-52 mm/a. The characteristic points with correlation coefficient greater than 0.9 between leveling point and SBAS accumulated settlement account for 91%, and the points with mean square error less than 20 mm account for 78%. At the same time, the risk classification of the surrounding area of the dam is carried out to supplement the level monitoring data.
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Basic Information:
China Classification Code:TV698.11;TV64
Citation Information:
[1]WANG Wen-heng,HUANG Jing,CUI Long ,et al.Analysis of the WLL Reservoir Dam Deformation Monitoring Based on SBAS Technology[J].Water Resources and Power,2022,40(02):119-122+156.
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新疆农业大学水利工程重点学科项目
2022-02-25
2022-02-25