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<p>To&#xa0;investigate the energy storage and dissipation laws in engineering rock masses, a systematic study was conducted by using a large number of existing in situ testing curves by rigid bearing plates. The results revealed that the engineering rock mass conforms to the linear energy storage and dissipation laws, but the energy storage capacity characteristics of the engineering rock mass were opposite to those of the rock. In the rock-scale loading process, its energy storage capacity dominates, while in the engineering rock mass level-scale loading process, its energy dissipation capacity dominates. The applicability of linear energy dissipation law in rock mass is further verified from the details of weak interlayer filling body in rock mass. A quantitative evaluation method for rock mass quality based on the energy dissipation coefficient (EDC) values was proposed. The specific grading criteria can be expressed as: when 0 &lt; EDC ≤ 0.55, the rock mass exhibits high-grade quality characteristics; when 0.55 &lt; EDC ≤ 0.76, the rock mass demonstrates medium-grade quality characteristics; and when 0.76 &lt; EDC &lt; 1, the rock mass quality is categorized as low-grade.</p>

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Linear Energy Storage and Dissipation Laws of Rock Mass by In Situ Rigid Bearing Plate Testing

  • 期刊论文

  • 发表日期：

    2026年4月9日

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  • Fengqiang Gong,
  • Zhichao He,
  • Jinhao Dai,
  • Lei Xu

摘要

To investigate the energy storage and dissipation laws in engineering rock masses, a systematic study was conducted by using a large number of existing in situ testing curves by rigid bearing plates. The results revealed that the engineering rock mass conforms to the linear energy storage and dissipation laws, but the energy storage capacity characteristics of the engineering rock mass were opposite to those of the rock. In the rock-scale loading process, its energy storage capacity dominates, while in the engineering rock mass level-scale loading process, its energy dissipation capacity dominates. The applicability of linear energy dissipation law in rock mass is further verified from the details of weak interlayer filling body in rock mass. A quantitative evaluation method for rock mass quality based on the energy dissipation coefficient (EDC) values was proposed. The specific grading criteria can be expressed as: when 0 < EDC ≤ 0.55, the rock mass exhibits high-grade quality characteristics; when 0.55 < EDC ≤ 0.76, the rock mass demonstrates medium-grade quality characteristics; and when 0.76 < EDC < 1, the rock mass quality is categorized as low-grade.