基于SBAS-InSAR技术的成都市平原区地面形变监测研究  

Research on Ground Deformation Monitoring in Chengdu Plain Area Based on SBAS-InSAR Technology

作　　者：姚远 徐洲洋 YAO Yuan;XU Zhouyang(Chengdu Geological Environment Monitoring Station,Chengdu 610095,China)

机构地区：[1]成都市地质环境监测站,四川成都610095

出　　处：《成都大学学报(自然科学版)》2025年第1期101-106,共6页Journal of Chengdu University(Natural Science Edition)

摘　　要：伴随大量城市基础设施建设、地下空间开发、地下资源利用等项目实施,与之密切相关的地面形变问题不断出现且有加强趋势.为研究成都市平原区地面形变具体情况,监测潜在的地面塌陷与沉降区域,基于Sentinel-1数据,采用短基线集干涉测量(SBAS-InSAR)方法获取了成都市2021年1月至2023年6月平原区地表形变,利用同期水准数据进行了精度和可靠性评定.结果表明,形变区形变速率绝对值大于10 mm范围占研究区面积的0.84%,研究区大部未发生明显形变,形变区占比较小且形变量不大.结合光学影像和现场实地核查分析,城镇的建设和施工和土地整理等是现阶段监测引起地面形变的主要因素,未监测到因地面塌陷与沉降引起的地面形变.With infrastructure construction,underground space development,and underground resource utilization,ground deformation phenomenon related to the above mentioned activities continues to emerge and has a worsening trend.To study the specific situation of ground deformation in the plain area of Chengdu and to monitor potential ground subsidence and subsidence areas,based on Sentinel-1 data,the SBAS-InSAR method was used to obtain the surface deformation in the plain area of Chengdu during the period from January 2021 to June 2023.The accuracy and reliability of the deformation data were evaluated by using the previous data at the same period of time in the previous year.The results showed that the absolute value of deformation rate in the deformation area was greater than 10 mm,and the area studied accounted for 0.84% of the research area.Most of the studied areas were stable without significant deformation,and the deformation area accounted for a relatively small proportion with small deformation magnitudes.Based on optical image analysis and site verification,urban construction and land consolidation were believed to be the main factors causing local ground deformation,and no geological disasters caused by ground deformation were found.

关 键 词：SBAS-InSAR 地面形变 监测数据 

分 类 号：P642.26[天文地球—工程地质学]