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A New Method of Monitoring 3D Mining-Induced Deformation in Mountainous Areas Based on Single-Track InSAR

  • Surveying and Geo-Spatial Engineering
  • Published:
KSCE Journal of Civil Engineering Aims and scope

Abstract

3D surface deformation monitoring methods based on the current single-track Interferometric Synthetic Aperture Radar (InSAR) technology are constructed by integrating the deformation laws of mining horizontal or gently inclined coal seams in plain areas, which are not suitable for monitoring the 3D deformation of mining in mountainous areas. Therefore, we developed a new method of extracting 3D deformation of mining in mountainous areas by using single-track InSAR technology. Firstly, the Line of Sight (LOS) deformation equations were established based on geometric relations between the InSAR monitored LOS deformation and 3D surface deformation. Secondly, they were fused with basic principles of surface deformation and movement of mining in mountainous areas. Then they were solved based on relevant boundary conditions. Simulation results of this novel method showed that the accuracy values of extracted deformation along vertical section, East-West (EW) and North-South (NS) were better than 8.86 mm, 8.29 mm and 18.01 mm, respectively. Compared with Wang method, this method is suitable for surface deformation monitoring of mining subsidence in mountainous areas. Finally, the proposed method was successfully used to monitor the 3D deformation of mining in the mountainous area of Tangjiahui Coal Mine in Ordos, Inner Mongolia, China.

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Acknowledgments

The authors thank the European Space Agency (ESA) for providing the radar images data of Sentinel-1. The authors thanks to reviewers for spending a lot of time reviewing manuscripts. The work was supported by the National Natural Science Foundation of China [Grant numbers 52074010,41474026], Excellent youth project of Anhui Natural Science Foundation [Grant numbers 2108085Y20] and Anhui Natural Science Fund Project [Grant numbers 2008085MD114].

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Correspondence to Lei Wang.

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Jiang, C., Wang, L., Yu, X. et al. A New Method of Monitoring 3D Mining-Induced Deformation in Mountainous Areas Based on Single-Track InSAR. KSCE J Civ Eng 26, 2392–2407 (2022). https://doi.org/10.1007/s12205-022-1583-2

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  • DOI: https://doi.org/10.1007/s12205-022-1583-2

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