基于SBAS-InSAR的采煤区地表形变监测与分析

doi:10.19286/j.cnki.cci.2023.09.013

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Abstract The coal resources in Changzhi area of Shanxi Province are abundant, and the geological disasters caused by underground mining are frequent. Aiming at the problem that the traditional deformation measurement technology based on ' point ' was difficult to be competent for the monitoring task of large-scale surface, this paper took No.29 field Sentinel-1 A radar images as the data source, and used the small baseline set ( SBAS-InSAR ) technology to obtain the surface subsidence caused by the mining of No.S1306 Face in Gucheng Mine from October 12,2021 to October 7,2022. Combined with the time-series cumulative settlement information of feature points, the surface deformation characteristics and spatial-temporal evolution process of the study area were analyzed in detail. The results showed that the surface around No.S1306 Face had undergone obvious deformation since January 16,2022, and a subsidence basin had gradually formed near the initial mining line. The maximum subsidence value detected in the center of the basin was about -178.6 mm, and the basin had a tendency to gradually develop to the northwest. Because that the mining of the working face had not been completed, as of October 7,2022, the deformation influence was only transmitted to the middle position of the working face along the mining direction, which was basically consistent with the actual mining position, indicating that SBAS had good applicability in the deformation monitoring of the mining area. The research results had important practical significance for the rational mining of mining areas and the protection of surface buildings.

Key words： small baseline set mining subsidence deformation monitoring sentinel-1A settlement funnel

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	Song Xubin
	Lu Xin

Cite this article:

Song Xubin,Lu Xin. Monitoring and analysis of surface deformation in coal mining area based on SBAS-InSAR[J]. CCI, 2023, 46(9): 51-56.

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http://www.mtyhg.com.cn/EN/10.19286/j.cnki.cci.2023.09.013 OR http://www.mtyhg.com.cn/EN/Y2023/V46/I9/51

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