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Guizhou mountainous areas have numerous high and steep slopes with underground mineral resources, and frequent underground mining activities can easily cause high-level landslides on the slopes. Therefore, starting from the root problem of underground mining, it is proposed to use backfill mining methods to solve such disasters. This article establishes numerical models for five typical mining-induced landslides in mountainous areas of Guizhou. The mining numerical simulation software GDEM simulates the evolution of fractures and displacement changes in slopes with different filling rates and proposes a reasonable filling rate scheme. The research results show that when the filling rate is between 10 and 90%, the overall crack development scale of the slope decreases with the increase of the filling rate, and the displacement of the slope also decreases overall with the increase of the filling rate. According to the scale of crack development and monitoring point data, it can be concluded that when the filling rate reaches 50%, the deformation of the entire slope and surface can be controlled.

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Research on Deformation Control Technology for Filling and Mining of High and Steep Slopes in Guizhou Mountainous Areas

  • 章节

  • 出版模式：

    开放获取

  • 发表日期：

    2026年

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  • Yu Wu,
  • Xiaohu Zheng,
  • Qing Liu,
  • Yao Zhong,
  • Qianyong Lv,
  • Jie Huang,
  • Dandan Liu

摘要

Guizhou mountainous areas have numerous high and steep slopes with underground mineral resources, and frequent underground mining activities can easily cause high-level landslides on the slopes. Therefore, starting from the root problem of underground mining, it is proposed to use backfill mining methods to solve such disasters. This article establishes numerical models for five typical mining-induced landslides in mountainous areas of Guizhou. The mining numerical simulation software GDEM simulates the evolution of fractures and displacement changes in slopes with different filling rates and proposes a reasonable filling rate scheme. The research results show that when the filling rate is between 10 and 90%, the overall crack development scale of the slope decreases with the increase of the filling rate, and the displacement of the slope also decreases overall with the increase of the filling rate. According to the scale of crack development and monitoring point data, it can be concluded that when the filling rate reaches 50%, the deformation of the entire slope and surface can be controlled.