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In order to improve the accuracy and efficiency of deformation monitoring of high and steep slopes, a two-dimensional deformation monitoring model of ground-based InSAR technology is constructed, and the synergistic inversion mechanism of line-of-sight directional deformation and radar beam parameters is analyzed by taking an open-pit mine slope as an example. Fifty monitoring points were set up in the experimental area, and the radar sampling frequency was 1 time/min for 7 consecutive days, and more than 10,000 images were acquired cumulatively. The two-dimensional decomposition results show that the maximum synthetic displacement is 3.10 mm, and the error is controlled within ±0.5 mm, which verifies the reliability and applicability of the method, and has the potential of engineering application for the early identification of slope hazards.

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Ground-Based InSAR Technique for Monitoring Two-Dimensional Deformation of Slopes

  • 章节

  • 发表日期：

    2026年

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  • Xianwen Wu,
  • Heyin Shi,
  • Yongjie Tang,
  • Yun Zhong,
  • Huixian Chen,
  • Guodong Guan,
  • Shengli Lu

摘要

In order to improve the accuracy and efficiency of deformation monitoring of high and steep slopes, a two-dimensional deformation monitoring model of ground-based InSAR technology is constructed, and the synergistic inversion mechanism of line-of-sight directional deformation and radar beam parameters is analyzed by taking an open-pit mine slope as an example. Fifty monitoring points were set up in the experimental area, and the radar sampling frequency was 1 time/min for 7 consecutive days, and more than 10,000 images were acquired cumulatively. The two-dimensional decomposition results show that the maximum synthetic displacement is 3.10 mm, and the error is controlled within ±0.5 mm, which verifies the reliability and applicability of the method, and has the potential of engineering application for the early identification of slope hazards.