Ground subsidence monitoring system based on GNSS and InSAR

Abstract

The invention relates to a ground subsidence monitoring system based on GNSS and InSAR. The ground subsidence monitoring system comprises a plurality of monitoring stations arranged at different places in a to-be-monitored area, a base station arranged in a geological stable area outside the to-be-monitored area, and a monitoring early warning center. The monitoring station is used for monitoring land subsidence of a monitoring point based on GNSS and InSAR to obtain a first monitoring result, and sending the first monitoring result to the monitoring and early warning center; the base station is used for carrying out ground subsidence monitoring on a reference point based on the GNSS to obtain a second monitoring result, and sending the second monitoring result to the monitoring and early warning center; and the monitoring and early warning center is used for carrying out land subsidence analysis on the to-be-monitored area according to the first monitoring result and the second monitoring result, and carrying out early warning according to an analysis result. According to the invention, a three-dimensional ground deformation monitoring system based on point-surface combination can be formed, the application limitation of a single monitoring technology is broken through, and the temporal-spatial resolution of a three-dimensional deformation monitoring result is greatly improved.

Description

technical field [0001] The invention relates to the technical field of substations, in particular to a ground subsidence monitoring system based on GNSS and InSAR. Background technique [0002] With the continuous advancement of urbanization, the impact of engineering construction on land subsidence is also becoming more and more serious. Land subsidence has become more and more harmful to the environment, residents' lives, and engineering construction, seriously restricting the sustainable development of social economy. Land subsidence is a slow-changing geological disaster, which is generally not easy to detect, but it cannot be recovered after it forms, causing extremely serious regional natural disasters. Therefore, in a sense, sinking control is also anti-sinking, whether the anti-sinking is effective is directly related to monitoring, and the prevention of land subsidence must have perfect monitoring facilities and matching monitoring methods. [0003] At present, th...

AI Technical Summary

Problems solved by technology

For large-scale regional land subsidence, GPS can be used for all-round measurement, but when the monitoring density is high, the overall cost is high, and the engineering implementation process is relatively complicated

Synthetic aperture interferometric radar monitoring is a satellite remote sensing technology that can sensitively monitor changes in land subsidence, but its real-time performance is poor and cannot reflect changes in land subsidence in real time

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