Method of differential GPS to monitor large-scale land subsidence

XIONG Chun-bao; TANG Li-gang; KUANG Shao-jun; HUANG Li-ren

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Method of differential GPS to monitor large-scale land subsidence

更新时间：2026-06-25

- Method of differential GPS to monitor large-scale land subsidence
- Vol. 24, Issue 6, (2003)
- 作者机构：
  
  1. 天津大学建工学院,天津,300072
  2. 天津市控制地面沉降办公室,天津,300042
  3. 国家地震局第一地形变监测中心,天津,300180
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU433
- Online First：19 August 2014，
  
  Published：2003
- 稿件说明：
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XIONG Chun-bao, TANG Li-gang, KUANG Shao-jun, et al. Method of differential GPS to monitor large-scale land subsidence[J]. 2003, 24(6).
DOI：

XIONG Chun-bao, TANG Li-gang, KUANG Shao-jun, et al. Method of differential GPS to monitor large-scale land subsidence[J]. 2003, 24(6). DOI：

摘要

详细介绍了差分GPS静态测量和动态测量两种测量模式应用于大范围地面沉降监测的工作原理，探讨了GPS测量与水准测量，这两种方法因测量基准面不同，而使得所测地面沉降量存在的差异。将差分GPS静态测量模式实际应用于天津市的地面沉降监测，通过对其4年的实际测量精度的分析表明，对于大范围地面沉降监测，采用差分GPS静态测量法取代长距离的一等精密水准测量是完全可行的。

Abstract

The methods of monitoring large-scale land subsidence by static and kinematic differential global positioning system (DGPS) were described in detail. Resulting from different reference planes

the difference between the measured subsidence by GPS and by leveling were investigated. An example of monitoring Tianjin land subsidence by GPS was given. Through analyzing the accuracy of Tianjin land subsidence monitored by GPS in 1999-2002

it was shown that static DGPS can take the place of long-distance precise leveling for monitoring large-scale land subsidence.

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