摘要
以城市环境轨道交通中具有代表性的铁路线路形变监测为例,采用星载合成孔径雷达干涉测量(Interferometric Synthetic Aperture Radar,InSAR)技术搜集了79景高分辨率Cosmo-SkyMed影像,其时间跨度为2013年1月到2020年8月,在研究区域内得到了540120个目标点,并利用这些数据开展铁路沿线沉降观测。结果表明:该区域最大沉降速率达到了86.3 mm/年;沉降时间序列信息展示了观测期间内的沉降变化趋势,体现了高分辨率影像在长时间跨度内进行城市环境轨道交通沉降监测的有效性。得到的沉降速率和历史沉降信息能为沉降分析和治理提供参考。
Taking the typical railway line deformation monitoring in urban environmental rail transit as an example,79 high-resolution Cosmo-SkyMed images were collected using satellite-borne Interferometric Synthetic Aperture Radar(InSAR)technology.Its time span was from January 2013 to August 2020,and 540120 target points were obtained in the study area,and these data were used to carry out settlement observation along the railway.The results show that the maximum settlement rate in this area has reached 86.3 mm/year.The settlement time-series information displays the trend of settlement changes during the observation period,reflecting the effectiveness of high-resolution images for monitoring urban environmental rail transit settlement over a long time span.The obtained settlement rate and historical settlement information can provide reference for settlement analysis and treatment.
作者
胡在良
邹友一
简国辉
袁慕策
解志峰
HU Zailiang;ZOU Yuoyi;JIAN Guohui;YUAN Muce;XIE Zhifeng(Railway Engineering Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Tieke Inspection Co.Ltd.,Beijing 100081,China)
出处
《铁道建筑》
北大核心
2023年第7期144-148,共5页
Railway Engineering
关键词
INSAR
时序合成孔径雷达干涉测量
轨道交通
沉降监测
沉降速率
InSAR
Time-Series Interferometric Synthetic-aperture Radar(TSInSAR)
rail transit
settlement monitoring
settlement rate
