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<p>The investigation and assessment of landslides is a complicated process, which needs to be explored using reasonable technical methods. This study adopts the method combining remote sensing and physical exploration to survey a landslide in Fengshun County, Meizhou City. The deformation monitoring data of landslides in the study area were obtained by SBAS-InSAR technology. The average deformation rates ranged from −29.40 mm/a to 32.08 mm/a. The deformation information and patterns of the surface were basically consistent with those of the field investigation, and the cumulative settlement of the landslide feature points had a good correspondence with the rainfall. Using the acquired high-precision stratigraphic structural information data of the landslide area using the HVSR method in seismic exploration together with borehole information, we have studied the subsurface structure of the landslide by visualizing. The stratigraphic structure of the landslide is silty clay layer, sandy clay layer, fully weathered granite layer, strongly weathered granite layer, and moderately-minimally weathered granite layer. Using the high-precision stratigraphic structure information and landslide deformation characteristics of the analysis, the study area deformation is larger areas mainly due to the existence of multiple rock layers within the stratum of fracture, and misalignment, the existence of low-velocity layers (Vs&lt;800 m/s) between the rock layers and the development of fissures. Damage to the internal structure under anthropogenic and natural conditions results in less stability on a regional scale. Some slopes are more susceptible to deformation. The landslide mechanism is studied through the combination of multidisciplinary methods, which provides methodological references and theoretical basis for the application of landslide investigation in the region.</p>

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The application and deformation monitoring of landslides based on geophysical exploration and InSAR technology

  • 期刊论文

  • 发表日期：

    2025年9月30日

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  • Zhongping Sun,
  • Xiaozheng Liu,
  • Haipeng Guo,
  • Yunlong Wang,
  • Peng Zhang

摘要

The investigation and assessment of landslides is a complicated process, which needs to be explored using reasonable technical methods. This study adopts the method combining remote sensing and physical exploration to survey a landslide in Fengshun County, Meizhou City. The deformation monitoring data of landslides in the study area were obtained by SBAS-InSAR technology. The average deformation rates ranged from −29.40 mm/a to 32.08 mm/a. The deformation information and patterns of the surface were basically consistent with those of the field investigation, and the cumulative settlement of the landslide feature points had a good correspondence with the rainfall. Using the acquired high-precision stratigraphic structural information data of the landslide area using the HVSR method in seismic exploration together with borehole information, we have studied the subsurface structure of the landslide by visualizing. The stratigraphic structure of the landslide is silty clay layer, sandy clay layer, fully weathered granite layer, strongly weathered granite layer, and moderately-minimally weathered granite layer. Using the high-precision stratigraphic structure information and landslide deformation characteristics of the analysis, the study area deformation is larger areas mainly due to the existence of multiple rock layers within the stratum of fracture, and misalignment, the existence of low-velocity layers (Vs<800 m/s) between the rock layers and the development of fissures. Damage to the internal structure under anthropogenic and natural conditions results in less stability on a regional scale. Some slopes are more susceptible to deformation. The landslide mechanism is studied through the combination of multidisciplinary methods, which provides methodological references and theoretical basis for the application of landslide investigation in the region.