摘要
近年来我国陆续建设多个填海区以缓解城市用地紧张,为研究在填海区兴建地铁对沿线填海区地表的影响,本文以横穿大连填海区的地铁二号线沿线周边地区为研究区域,基于2019年10月~2020年10月的32景Senitinel-1A数据,采用时序InSAR分析方法中的SBAS-InSAR与PS-InSAR分析方法进行地表形变监测研究,利用两种方法的结果进行交叉分析、验证。实验结果表明:总体上,地铁沿线地表年均沉降量总体在-20 mm/a~+10 mm/a范围内,形变量集中在-6.7 mm/a~+7 mm/a范围内,地表轻微沉降在安全范围内;在东港填海与原有陆地交接区,发现3处区域地表形变明显,尤其在海之韵站周边范围内地表沉降较为严重,最大沉降速率为-20 mm/a,经实地验视3处区域均有明显形变。
In recent years,China has successively built several reclamation areas to alleviate the shortage of urban land.In order to study the impact of the construction of subway in the reclamation area on the surface of the reclamation area along the line,this paper takes the surrounding area along the subway line 2 across Dalian reclamation area as the research area,based on the 32 scene sentinel-1A data from October 2019 to October 2020,SBAS-insar and PS-insar analysis methods of time series InSAR analysis methods are used to study surface deformation monitoring,and the results of the two methods are cross analyzed and verified.The experimental results show that:in general,the average annual surface settlement along the subway line is generally within the range of-20mm/a to+10mm/a,with deformation variables concentrated in the range of-6.7mm/a to+7mm/a,and slight surface settlement is within the safe range;In addition,in the junction area between Donggang reclamation and the original land,it is found that the surface deformation in three areas is obvious,especially in the surrounding area of Haizhiyun station,the surface settlement is relatively serious,and the maximum settlement rate is-20mm/a.after field inspection,the surface deformation in three areas is obvious.
作者
奚小军
杨智博
马运涛
林芸雯
XI Xiaojun;YANG Zhibo;MA Yuntao;LIN Yunwen(Shenyang Survey and Mapping Research Institute Co.,Ltd.,Shenyang 110004,China;Collaborative Innovation and Application Centre for High Resolution Earth Observation System of Systems for Urban Transport Environment of Liaoning Province,Shenyang 110004,China;Urban Spatiotenporal information Professional Techology Innovation Center of Liaoning Province,Shenyang 110004,China;Key Laboratory of Urban Resources Monitoring of Liaoning Province,Shenyang 110004,China;Beijing Boyu Zhitu Information Technology Co.,Ltd.,Beijing 100102,China;Beijing Hanbolin Remote Sensing Mapping information engineering Research Institute,Beijing 100084,China;Liaoning University of Engineering and Technology School of Surveying and Geosciences,Fuxin 123000,China)
出处
《城市勘测》
2024年第1期139-143,148,共6页
Urban Geotechnical Investigation & Surveying
基金
自然资源部重点实验室开放基金(ZRZYBWD202110)
辽宁省百千万人才专项资质项目(LNBQW-2021-121)
辽宁省科学技术计划项目(1600657618098)。
关键词
合成孔径雷达
时序InSAR
地铁沿线
填海区
地表形变
Synthetic Aperture Radar
temporal InSAR
along the subway
reclamation area
surface deformation
