某地下强爆炸区地表形变DS-InSAR多源长时序监测与分析  

Long-duration series monitoring and analysis of surface deformation in underground strong explosion zones using DS-InSAR with multi-source data

作　　者：薛凡喜 张磊[1] 徐翔云 于潇 田立杰 XUE Fanxi;ZHANG Lei;XU Xiangyun;YU Xiao;TIAN Lijie(Defense Engineering Institute,AMS,PLA,Beijing 100850,China)

机构地区：[1]军事科学院国防工程研究院,北京100850

出　　处：《防护工程》2024年第1期41-46,共6页Protective Engineering

摘　　要：为探究地下强爆炸相关的地表形变长时序时空演变规律,通过同质像元识别和相位优化,对ERS-1/2、Envisat/ASAR和Sentinel-1等卫星公开的多源SAR数据进行了时序InSAR处理,获取了境外某试验场1992-2019年地表形变分布,揭示了地下强爆炸后地表形变的时空演变规律。研究结果表明:该试验区内在ERS-1/2卫星覆盖时段形变速率最大(-23 mm/a);沉降中心主要分布于试验场地下强爆炸较为集中的中部,地表沉降速率呈现为从快速下沉到减速再到逐渐稳定的趋势,且沉降区面积也随时间衰减,周边地表逐步趋向稳定。In order to investigate the long-term spatiotemporal evolution rules of surface deformation related to underground explosions,a duration-series InSAR(DS-InSAR)processing was applied to multiple publicly available SAR datasets,including ERS-1/2,Envisat/ASAR,and Sentinel-1.Through homogeneous pixel identification and phase optimization,the surface deformation distribution of a certain test site from 1992 to 2019 was obtained,revealing the spatiotemporal evolution rules of surface deformation after underground strong explosions.The results show that the maximum deformation rate occurred during the coverage period of the ERS-1/2 satellite(-23 mm/a).The subsidence center is mainly distributed in the central part of the test site where underground strong explosions are more concentrated.The surface subsidence rate shows a trend of rapid subsidence,followed by deceleration,and then gradually stabilizing.Additionally,the subsidence area also decreases over time,with the surrounding surface gradually approaching stability.

关 键 词：DS-InSAR 长时序形变监测 地下强爆炸 多源数据 时空演化 

分 类 号：TD325.4[矿业工程—矿井建设]