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<p>The mine dynamic disaster’s essence is the accumulation and release of the surrounding rock’s energy. By focusing on the full cycle process of rectangular roadway’s “excavation-deformation-instability” in a deep non-isobaric stress environment, the mechanical equations of the surrounding rock’s each part energy in the elastic/plastic stage are obtained by considering the influence of softening characteristics on the energy evolution. Herein, the mechanical mechanism of the deep roadway surrounding rock’s energy accumulation-release adjustment is revealed. Based on the conditions of a mine in the Ningdong mining area, the influencing parameters’ sensitivity analysis for each part’s energy is carried out, and the mechanical derivation process is verified. The results show that in the elastic stage, the sensitivity ranking is: lateral pressure coefficient &gt; initial ground stress &gt; roadway size &gt; supporting force. In the plastic stage, the sensitivity ranking is: initial ground stress &gt; lateral pressure coefficient &gt; roadway size &gt; softening modulus &gt; supporting force. The difference between the accumulated energy and the released energy can be defined as the kinetic energy by inducing rock bursts. Based on the goal of reducing the kinetic energy, the idea of roadway side’s energy release zoning control is proposed.</p>

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Mechanical mechanism of surrounding rock’s energy accumulation-release adjustment in the deep roadway

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月14日

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  • Yunliang Tan,
  • Shenglong Yang,
  • Xuesheng Liu,
  • Golsanami Naser,
  • Sarfarazi Vahab,
  • Shilin Song

摘要

The mine dynamic disaster’s essence is the accumulation and release of the surrounding rock’s energy. By focusing on the full cycle process of rectangular roadway’s “excavation-deformation-instability” in a deep non-isobaric stress environment, the mechanical equations of the surrounding rock’s each part energy in the elastic/plastic stage are obtained by considering the influence of softening characteristics on the energy evolution. Herein, the mechanical mechanism of the deep roadway surrounding rock’s energy accumulation-release adjustment is revealed. Based on the conditions of a mine in the Ningdong mining area, the influencing parameters’ sensitivity analysis for each part’s energy is carried out, and the mechanical derivation process is verified. The results show that in the elastic stage, the sensitivity ranking is: lateral pressure coefficient > initial ground stress > roadway size > supporting force. In the plastic stage, the sensitivity ranking is: initial ground stress > lateral pressure coefficient > roadway size > softening modulus > supporting force. The difference between the accumulated energy and the released energy can be defined as the kinetic energy by inducing rock bursts. Based on the goal of reducing the kinetic energy, the idea of roadway side’s energy release zoning control is proposed.