Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Geomatics World》 2018-03
Add to Favorite Get Latest Update

Land Subsidence Monitoring in Kunming with SBAS-InSAR Technology

FAN Jun;ZUO Xiaoqing;LI Tao;CHEN Qianfu;MA Yuanyuan;Institute of Land and Resources Engineering, Kunming University of Science and Technology;Satellite Surveying and Mapping Application Center,National Administration of Surveying,Mapping and Geo-information;  
In this paper, small baseline bubset In SAR technology is applied to land subsidence monitoring in Kunming, sentinel-1 A and sentinel-1 B data were processed separately for 29 scenes of ascending track and 32 scenes of dscending track in the same area from 2014 to 2017. In ascending and descending track modes to complete the data processing and precision verification, the results show that the average subsidence rate and time series analysis are basically consistent for the same area in the two modes. The study found that some subsidence funnels are mainly located in residential areas, roads, subway, highway and Dianchi, the highest average subsidence rate is-38.975 mm/a and the maximum subsidence is 89 mm in the subsidence funnel. The study shows that the land subsidence in Kunming is mainly due to the rapid development of urbanization and rail transit construction in recent years, resulting in densely populated residential area and traffic networks, surface load increases, underground tunnel excavation and groundwater mining and other issues caused by the ground soft soil subsidence and significant settlement phenomenon.
【Fund】: 国家重点研发计划(2017YFB0502700);; 国家民用航天计划(D010102);; 国家基础测绘科技计划(2016KJ0204/2017KJ0204);; 测绘地理信息公益性行业科研专项经费项目(201512022)资助
【CateGory Index】: P642.26
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved