地理空间信息2025，Vol.23Issue(7)：35-40,6.DOI:10.3969/j.issn.1672-4623.2025.07.008
利用SBAS-InSAR分析武汉地铁沿线地表形变特征
Surface Deformation Characteristic Analysis Method Along Wuhan Subway Lines Using SBAS-InSAR Technology
摘要
Abstract
Safe operation of rail transit requires the support of high-precision deformation monitoring technology across the entire line.In this paper,we used the small baseline subset interferometric synthetic aperture radar(SBAS-InSAR)technique to analyze 231 scenes of Sentinel-1 data from 2015 to 2023,and obtained long-term surface deformation information along the main subway lines in Wuhan City.Combined with geographical analysis methods such as the geographically weighted regression(GWR)model,we analyzed the spatio-temporal characteristics of surface subsidence.The results show that there is a certain spatio-temporal correlation between surface subsidence and subway construction and operation.Spatially,varying degrees of subsidence funnels exist along the subway lines 6,7 and 8,with extreme subsidence speed exceeding 25 mm/a.Temporally,monitoring points along subway lines in different areas are significantly affected by subway construction,exhibiting rapid subsidence from 2015 to 2017.This result demonstrates the effectiveness of SBAS-InSAR technology in ensuring infrastructure safety,and provides a theoretical basis and technical support for the long-term operation and maintenance of subways.关键词
武汉地铁/SBAS-InSAR/形变监测/地铁沉降/GWR模型Key words
Wuhan subway/SBAS-InSAR/deformation monitoring/subway subsidence/GWR model分类
天文与地球科学引用本文复制引用
黄昊龙,史绪国,李梓龙..利用SBAS-InSAR分析武汉地铁沿线地表形变特征[J].地理空间信息,2025,23(7):35-40,6.基金项目
国家自然科学基金资助项目(42474061). （42474061）
