时序InSAR在城市地铁工程区形变监测中的应用

发布时间：2018-01-15 13:30

  本文关键词：时序InSAR在城市地铁工程区形变监测中的应用　出处：《测绘通报》2017年08期 　论文类型：期刊论文

  更多相关文章： 地表形变 时序InSAR 人工角反射器 精细监测 地铁建设

【摘要】：地铁建设会引发城市地表形变灾害,而传统的合成孔径雷达差分干涉测量(D-InSAR)难以实现城市地铁工程区域的精细测量。本文利用TerraSAR-X高分辨率数据,采用PS-InSAR和SBAS-InSAR方法对徐州地铁1号线东部工程场地进行了形变监测,获取了该区域2016年6月15日—2016年9月11日期间的形变时序图。通过与人工角反射器布设点的水准测量数据对比分析,发现利用两种时序InSAR测量方法得到的地表形变结果与水准测量结果非常一致,形变误差均在1 mm以内;而SBAS-InSAR探测地表形变的敏感性低于PS-InSAR。结果表明,利用高分辨率SAR影像监测城市地铁形变具有亚毫米级的测量精度和米级的定位能力,同时证明了时序InSAR分析技术在城市地铁工程形变监测应用中的广阔前景。
[Abstract]:Subway construction will cause urban surface deformation disasters. But the traditional differential interferometry of synthetic aperture radar (D-InSAR) is difficult to realize the fine measurement of urban subway engineering area. This paper uses TerraSAR-X high-resolution data. The deformation monitoring of the east engineering site of Xuzhou Metro Line 1 was carried out by using PS-InSAR and SBAS-InSAR methods. The deformation sequence diagram of the region from June 15th 2016 to September 11th 2016 is obtained and compared with the leveling data of the artificial angle reflector. It is found that the results of surface deformation obtained by using two time series InSAR methods are in good agreement with the leveling results, and the deformation errors are within 1 mm. However, the sensitivity of SBAS-InSAR in detecting surface deformation is lower than that of PS-InSAR. the results show that. Using high-resolution SAR images to monitor urban subway deformation has sub-millimeter accuracy and meter positioning ability. At the same time, it is proved that the application of time series InSAR analysis technology in urban subway engineering deformation monitoring has broad prospects.
【作者单位】： 中国矿业大学环境与测绘学院;
【基金】：江苏省煤基CO2捕集与地质储存重点实验室开放基金(2015A01)
【分类号】：P225.1;U231.1
【正文快照】： 我国正在大力发展城市地铁工程,依据地铁发展规划,中国地铁总里程将在2020年达到6000 km,城市地铁工程的地下隧道、桥梁及地基工程将使应力平衡状态的地质环境遭到破坏,导致工程建设区发生地表形变[1-2]。为防控地表形变造成影响和危害,亟须建立有效的城市地铁建设工程区形变，

本文编号：1428565