摘要
地面沉降是一种对地面及地下基础设施造成安全隐患,对经济可持续发展和环境保护产生破坏影响的地质灾害现象。本文使用2017年5月至2018年5月16景Sentinel-1A卫星SAR影像,根据D-InSAR的初步形变监测结果将即墨城区内沉降明显的区域作为研究区,基于PS和SBAS两种时序InSAR方法对该区域进行地面沉降监测,获得的沉降分布和形变时序结果吻合。地面沉降的分布与新建高层建筑区吻合,地面形变趋势与区域降水量和地下水水位变化有较高的相关性。研究结果有助于了解即墨城区的地表沉降状况以及原因,为地面沉降综合治理和地下水水资源开发利用提供参考依据。
Ground subsidence is a kind of geological disaster phenomenon that has hidden dangers for the ground and underground infrastructures,and affects the sustainable development of economy and environment.16 SAR images of Sentinel-1A satellite were acquired from May 2017 to May 2018.Based on the preliminary deformation monitoring results of D-InSAR,the area with the most obvious subsidence in Jimo city is taken as the research area.Based on PS and SBAS two time series InSAR methods,the ground subsidence in this area is monitored,and the results of subsidence distribution and deformation time series are consistent.The distribution of ground subsidence is consistent with the new high-rise building area,and the trend of ground deformation is highly correlated with the regional precipitation and groundwater level change.The results of the study are helpful to understand the ground subsidence and its causes in Jimo city,and provide reference for the comprehensive treatment of ground subsidence and the development and utilization of groundwater resources.
作者
梁泽浩
王晋
李广雪
LIANG Zehao;WANG Jin;LI Guangxue(College of Marine Geosciences,Ocean University of China,Qingdao 266100,China;Key Lab of Submarine Geosciences and Prospecting Techniques,Ministry of Education,Ocean University of China,Qingdao 266100,China)
出处
《测绘与空间地理信息》
2021年第1期77-81,共5页
Geomatics & Spatial Information Technology
基金
国家重点研发计划——政府间国际科技创新合作重点专项(SQ2017YFGH001475)
山东省泰山学者建设工程专项——基于多源对地观测技术支持下的海岸带大型基础设施监测与评价系统研究(2018-2022)资助。
