测绘通报 ›› 2021, Vol. 0 ›› Issue (6): 76-82.doi: 10.13474/j.cnki.11-2246.2021.0180

• 区域形变监测成果 • 上一篇    下一篇

联合InSAR和GNSS监测沿海地区地面沉降

杨国创1, 段春磊2   

  1. 广东省地质测绘院, 广东 广州 510800
  • 收稿日期:2021-04-25 发布日期:2021-06-28
  • 作者简介:杨国创(1972—),男,高级工程师,主要从事精密工程测量、大地测量、不动产测绘、地籍调查、海洋测绘、生产管理等工作。E-mail:2391356554@qq.com

Joint InSAR and GNSS to monitor land subsidence in coastal areas

YANG Guochuang1, DUAN Chunlei2   

  1. Institude of Geological Survey in GuangDong Province, Guangzhou 510800, China
  • Received:2021-04-25 Published:2021-06-28

摘要: 近年来,城市地表形变造成的损失备受关注。而基于点的传统大地测量监测技术,在区域性的地表形变监测方面存在局限性。本文提出利用空间大地测量技术监测城市地表形变。联合时序InSAR和全球导航卫星系统(GNSS)技术对深圳和香港海岸线的地表形变场进行监测,同时生成香港网络参考站三维变化的时间序列。由结果可知,位于填海区的地铁建筑区和地基较浅的建筑物,存在明显的沉降现象。

关键词: 时间序列InSAR, 沉降, GNSS, 沿海城市地区

Abstract: The traditional point-based geodetic monitoring technology has limitations for regional surface deformation. Spatial geodesy technology proposed in this paper is used to study the surface deformation of the city. In the study, time-series InSAR and GNSS technology are used to monitor the surface deformation field in the coastline area of Shenzhen and Hong Kong Special Administrative Region of China. At the same time, a time series of three-dimensional changes at the network reference station in the Hong Kong Special Administrative Region is generated. The results show that there is a significant substitution phenomenon in the reclamation area, especially in the subway construction area and the buildings with shallow foundations in the reclamation area.

Key words: time-series InSAR, subsidence, GNSS, coastal urban area

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