测绘通报 ›› 2025, Vol. 0 ›› Issue (7): 104-109.doi: 10.13474/j.cnki.11-2246.2025.0717

• 技术交流 • 上一篇    下一篇

基于InSAR的广域地表及重要基础设施形变监测与预测

刘艳霞1, 王祥1, 宗琴2, 孙伟1, 刘涛1, 杨霞1, 方金玲1   

  1. 1. 武汉市测绘研究院, 湖北 武汉 430022;
    2. 重庆建筑工程职业学院, 重庆 400072
  • 收稿日期:2024-12-12 发布日期:2025-08-02
  • 通讯作者: 宗琴。E-mail:576036493@qq.com
  • 作者简介:刘艳霞(1987—),女,博士,研究方向为遥感影像城市测绘应用。E-mail:764871667@qq.com
  • 基金资助:
    重庆市城乡建设委员会科技项目(城科字2024第4-21号)

Deformation monitoring and prediction of wide-area land surface and important infrastructure based on InSAR

LIU Yanxia1, WANG Xiang1, ZONG Qin2, SUN Wei1, LIU Tao1, YANG Xia1, FANG Jinling1   

  1. 1. Wuhan Surveying and Mapping Research, Wuhan 430022, China;
    2. Chongqing Jianzhu College, Chongqing 400072, China
  • Received:2024-12-12 Published:2025-08-02

摘要: 基于InSAR能获取高精度、高空间分辨率、连续的地表形变信息,地面沉降及高精度形变信息对保障城市公共安全有重要意义。本文利用PS-InSAR和广域地表形变快速提取算法,基于2012年6月至2024年6月武汉市域范围内1600 km2 COSMO-Skyed影像和2018年1月至2024年6月武汉市、鄂州市、黄冈市和黄石市32 177 km2 Sentinel-1影像获取地表形变时空分布信息,并依据GNSS和水准测量数据进行形变精度评估。结果表明,COSMO和Sentinel-1数据形变速率均方根误差分别在2.3~5.8和2.99~6.29 mm/a; COSMO和Sentinel-1时序形变均方根误差分别为4.96和5.2 mm。同时,提取地铁沿线、地铁保护区、大跨度建筑和基坑等重要基础设施区域形变信息,并分析形变与工程段起止时间等的相关性。最后,利用Logistic形变预测模型,对武汉市、鄂州市、黄冈市和黄石市地表沉降进行未来两年内地表形变预测,每季度预测一期,共8期。

关键词: InSAR, 广域, 精度评定, 基础设施, 预测

Abstract: Based on InSAR,high-precision,high spatial resolution,and continuous surface deformation information can be obtained.Urban ground subsidence and high-precision deformation information are of great significance for ensuring public safety.This article uses PS-InSAR and wide area surface deformation fast extraction algorithm to obtain spatiotemporal distribution information of surface deformation based on 1600 km2 COSMO Skyed images in Wuhan from June 2012 to June 2024 and 32 177 km2 Sentinel-1 images in Wuhan,Ezhou,Huanggang,and Huangshi from January 2018 to June 2024.The deformation accuracy is evaluated based on GNSS and leveling measurement data.The results show that the root mean square error of deformation rate in COSMO data ranged from 2.3~5.8 mm/a,while the root mean square error of deformation rate in Sentinel-1 data ranged from 2.99~6.29 mm/a.The root mean square error of COSMO temporal deformation is 4.96 mm,and the root mean square error of Sentinel-1 temporal deformation is 5.20 mm.At the same time,extract deformation information of important infrastructure areas such as subway lines,subway protected areas,large-span buildings,and foundation pits,and analyze the correlation between deformation and the start and end time of engineering sections,etc.Finally,using the logistic deformation prediction model,the surface subsidence of Wuhan,Ezhou,Huanggang,and Huangshi is predicted for the next two years,with one prediction per quarter for a total of eight periods.

Key words: InSAR, wide area, accuracy evaluation, infrastructure, forecast

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