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<p>This study centers on the deformed slope situated on the western side of Baiyinhua No.1 Open-pit Coal Mine. By making use of GNSS technology, a series of monitoring points were strategically established to conduct a comprehensive and systematic investigation into the spatiotemporal evolution patterns of both horizontal and vertical displacements exhibited by the slope. To delve into the stability of the slope on the north side of the west bank of Baiyinhua No.1 Open-pit Coal Mine, this research first compared the changes in slope morphology over a one-year period. Subsequently, it analyzed the data variation patterns of GNSS monitoring points within the deformation area throughout the same year. Based on these analyses, the geological analysis model of the slope was constructed, and the main deformation range of the slope was precisely determined. Through a further comparison of the changes in slope morphology and data over the one-year span, it was deduced that the primary cause of slope sliding stems from the traction exerted by the weak mudstone interlayer at the lower part of the slope, which results in an upper arc and a lower sliding pattern along the weak layer. The stability of the slope was thoroughly evaluated by the in-depth analysis. Warning values for daily slope variation were set according to the monitoring results, and appropriate treatment plans were proposed. The research approach adopted in this study holds substantial engineering significance for addressing slope deformation issues on-site, offering valuable guidance for the key monitoring and control of the slope.</p>

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Analysis of Deformation Laws and Trends of Open-pit Coal Mine Slopes Based on GNSS Technology

  • 期刊论文

  • 发表日期：

    2026年3月4日

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  • Gan Liu,
  • Shuangshuang Xiao,
  • Kai Zhang,
  • Hongbo Li

摘要

This study centers on the deformed slope situated on the western side of Baiyinhua No.1 Open-pit Coal Mine. By making use of GNSS technology, a series of monitoring points were strategically established to conduct a comprehensive and systematic investigation into the spatiotemporal evolution patterns of both horizontal and vertical displacements exhibited by the slope. To delve into the stability of the slope on the north side of the west bank of Baiyinhua No.1 Open-pit Coal Mine, this research first compared the changes in slope morphology over a one-year period. Subsequently, it analyzed the data variation patterns of GNSS monitoring points within the deformation area throughout the same year. Based on these analyses, the geological analysis model of the slope was constructed, and the main deformation range of the slope was precisely determined. Through a further comparison of the changes in slope morphology and data over the one-year span, it was deduced that the primary cause of slope sliding stems from the traction exerted by the weak mudstone interlayer at the lower part of the slope, which results in an upper arc and a lower sliding pattern along the weak layer. The stability of the slope was thoroughly evaluated by the in-depth analysis. Warning values for daily slope variation were set according to the monitoring results, and appropriate treatment plans were proposed. The research approach adopted in this study holds substantial engineering significance for addressing slope deformation issues on-site, offering valuable guidance for the key monitoring and control of the slope.