摘要
利用时序InSAR技术的优势,以新疆WLL水库大坝为研究对象,使用31幅Sentinel-1A影像,采用StaMPS方法对其进行形变监测,得到大坝及周边区域的形变结果,并从内、外符合精度两个方面进行精度验证。结果表明,研究区域PS点平均形变速率标准差区间为0.3~3.1mm/a;StaMPS与SBAS形变速率中误差为±5.7mm;与大坝二等水准监测成果比较,垂直形变速率中误差为±5.0mm,垂直累积形变量中误差为±10.2mm。从而证明StaMPS方法在大坝形变监测应用中的可行性。
Using the advantage of time-series InSAR technology,and taking WLL reservoir dam in Xinjiang as the study object,31sentinel-1Aimages are used to monitor the deformation of the dam and its surrounding area by StaMPS method.The deformation results are obtained,and the accuracy is verified from the two aspects of inner and outer conformance accuracy.The result shows that the standard deviation of PS point average deformation rate ranges from 0.3to 3.1mm/a,and the mean square error between StaMPS and SBAS is±5.7mm.Compared with secondary level monitoring results,the root mean square error of vertical deformation rate is±5.0 mm,and the mean square error of vertical cumulative deformation value is±10.2mm.It is proved that the application of StaMPS method in dam deformation monitoring is feasible.
作者
黄静
张红忠
崔龙
阿布都沙拉木·托尔逊
王文衡
马立平
HUANG Jing;ZHANG Hongzhong;CUI Long;Abdushalamu Tuoerxun;WANG Wenheng;MA Liping(College of Hydraulic and Civil Engineering,Xinjiang Agricultural University,Urumqi 830052,China;Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention,Urumqi 830052,China;Xinjiang Irtysh River Basin Development Project Construction Administration,Urumqi 830000,China)
出处
《测绘工程》
CSCD
2022年第5期41-45,共5页
Engineering of Surveying and Mapping
