基于SBAS-InSAR技术的青岛地铁1号线西海岸新区段地表沉降监测与分析  

Monitoring of Land Subsidence of Metro Line 1 in the New District of West Coast of Qingdao Based on SBAS-InSAR

作　　者：李红梅[1] 郭在洁 刘庆施 党彦[1] LI Hongmei;GUO Zaijie;LIU Qingshi;DANG Yan(College of Architectural Engineering of Qingdao Binhai University,Qingdao Shandong 266555,China;College of Geomatics of Shandong University of Science and Technology,Qingdao Shandong 266590,China)

机构地区：[1]青岛滨海学院建筑工程学院,山东青岛266555 [2]山东科技大学测绘科学与工程学院,山东青岛266590

出　　处：《西南大学学报（自然科学版）》2022年第2期146-153,共8页Journal of Southwest University(Natural Science Edition)

基　　金：山东省高等学校科技计划项目(J18KB091).

摘　　要：基于小基线集技术(SBAS-InSAR)对青岛市地铁1号线西海岸新区段的29景Sentinel-1A影像数据进行处理,获取了2018年5月至2020年5月该区段沿线的地面沉降速率及累计沉降量等形变信息,监测结果表明主要沉降区域位于安子站至安子东站北侧及附近,最大沉降速率达到约-49 mm/a,最大累积沉降量约-103 mm,其他区域的沉降速率为-5~0 mm/a;在0~1000 m段以及安子站至安子东站段,沉降速波动较大.结合Logistic函数模型预测安子东站至安子站的路段地面沉降,发现其2020年后地面沉降逐渐趋于稳定.沉降监测信息不仅能够为西海岸新区在地铁建设施工及运行过程中制定地表安全预案及合理开发地下空间提供数据决策依据,而且有利于完善相关理论.Based on SBAS-InSAR technology,the29 sentinel-1 aimage data of metro line 1 in the new district of west coast of Qingdao was processed,and the information of land subsidence along the section from May 2018 to May 2020 including deformation rate and accumulative land subsidence was obtained.The monitoring results showed that the main subsidence area was located in Anzi station to the north of Anzi east station and nearby region.The maximum ground subsidence velocity reached to about-49 mm/a,and the maximum accumulated settlement was about-103 mm.The ground subsidence velocity in other areas was-5-0 mm/a.The ground subsidence velocity fluctuated greatly in the 0-1000 m section and the section from Anzi station to Anzi east station.Combined with logistic function model to predict the land subsidence between Anzi east station and Anzi station indicated that the land subsidence will gradually become stable after 2020.The settlement monitoring information can not only provide the data of decision-making basis for making the surface safety plan and reasonable development of underground space in the construction and operation process of nearsubway lines in the new district of West Coast of Qinddao,but also help to improve the related theory.

关 键 词：青岛地铁1号线西海岸新区段 沉降监测 Sentinel-1A 基于小基线集技术 

分 类 号：P642.26[天文地球—工程地质学]