Monitoring technology of collapse and landslide disasters based on high-precision spatio-temporal information

doi:10.13474/j.cnki.11-2246.2022.0316

Abstract

Abstract: China is a country with frequent geological disasters like landslides, mudslides, and so on, which bring great threats to the property and life safety of our people over the years. For this reason, the early warning of geological disasters has always been a difficult research problem in the emergency direction of China. With the construction and networking of global satellite navigation systems such as BeiDou and GPS, GNSS technology has gradually become an important means to provide spatio-temporal position information. It has the characteristics of real-time data, low power consumption of equipment, convenient construction, and so on, and has formally become an ideal technical means to solve the problems of geological disaster monitoring and early warning. In this paper, based on GNSS spatial and temporal information data including BeiDou and GPS and GLONASS, it constructed a medium-long baseline millimeter-level accuracy landslide monitoring solution method for geological disaster monitoring, and determined the carrier phase solution model of double-difference observation. Finally, with the field application in Xinpu area of Chongqing, it realized the millimeter landslide disaster monitoring and early warning based on high-precision spatio-temporal information. It provided data support for the prediction of geological disasters in this region and technical support for people's production and life.

Key words: high-precision spatio-temporal information, deformation monitoring, medium-long baseline, precise positioning, geological disasters

CLC Number:

P228

HE Wei, ZHANG Lunning, ZENG Lu, ZHAO Qing, YU Guoxin, ZHU Keying, LI Kexin. Monitoring technology of collapse and landslide disasters based on high-precision spatio-temporal information[J]. Bulletin of Surveying and Mapping, 2022, 0(11): 1-7.

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