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Xu Fu

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Proceedings Article | 2 January 2025 Paper

Deformation monitoring and accuracy analysis of slope in mining area during treatment period based on ground-based SAR

Fu Xu, Zufeng Li, Siyuan Chen, Shengjie Di, Wenjun Zhao, Haixing Shang

Proceedings Volume 13514, 135140D (2025) https://doi.org/10.1117/12.3059053

KEYWORDS: Deformation, Reflectors, Mining, Signal to noise ratio, Equipment, Synthetic aperture radar, Reliability, Environmental monitoring, Design, Atmospheric monitoring

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Compared with traditional deformation monitoring methods, GBSAR has the advantages of all-weather, near real-time and high spatial-temporal resolution, which provides an effective deformation monitoring method for local region. In this paper, the slope of mining area is continuously monitored by using GBSAR during the treatment period. The results of time series show that the maximum cumulative displacement is 3.8 mm at the same time, in order to verify the accuracy of GBSAR, monitoring experiments are carried out. The maximum difference between the actual displacement value and the monitoring value was -0.37mm, the minimum was -0.01mm, and the average root mean square error was 0.2mm. TS30 total station is used as auxiliary data to evaluate the external coincidence accuracy of GBSAR monitoring results. The results show that the monitoring results of GBSAR and total station are highly consistent, and the correlation of deformation monitoring points is 0.98 and 0.93, respectively, indicating the reliability of GBSAR monitoring technology in slope monitoring. Finally, through field investigation and analysis, it is concluded that the deformation of the slope is related to artificial irrigation, and the slope remains basically stable. The results show that GBSAR has the characteristics of high spatial resolution and high precision, which can continuously monitor small areas at sub-millimeter level and provide necessary technical support for disaster reduction and prevention.

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