GNSS real-time monitoring technology of expansive soil slope

doi:10.11947/j.AGCS.2023.20220562

Abstract

Abstract: Expansive soil landslide is harmful to the project because of its universality, fragmentation, repetition, concealment and other characteristics. The long-term real-time deformation monitoring is the premise for the prevention and control of expansive soil disasters. On the basis of the first generation of expansive soil slope GNSS monitoring technology and experiment, the research team made two improvements:① A layered GNSS/total station integrated monitoring device is designed to realize layered real-time monitoring of expansive soil slope. ② A GNSS real-time monitoring technology of expansive soil slope with comprehensive multi-source parameters is proposed to improve the reliability and accuracy of real-time deformation monitoring results. Relevant technologies and equipment have been applied in the demonstration of expansive soil highway slope in Ningming, Guangxi, and the dynamic response characteristics and induced sliding reasons of GNSS deformation and multi-source monitoring data have been analyzed. An expansive soil landslide was successfully monitored, and the research results are replicable and popularized.

Key words: expansive soil slope, GNSS, real-time monitoring, multisource data, dynamic response, slope failure

CLC Number:

P228

HUANG Guanwen, CHEN Zi, XU Yongfu. GNSS real-time monitoring technology of expansive soil slope[J]. Acta Geodaetica et Cartographica Sinica, 2023, 52(11): 1873-1882.

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