渐进式失败行为:在采矿压力煤矿中,能量进化和自我抑制具有钻井破裂断裂的过程
Tianjun Zhang1,2, Wei Meng1, Mingkun Pang1,2
1College of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054, China.
ACS omega
|February 2, 2026
概括
气体开采钻井周围的裂角度通过在破坏过程中改变能量转移和自我抑制机制,显著影响煤炭的稳定性. 了解这些能量动态是预测煤炭质量行为的关键.
科学领域:
- 地质技术工程 地质技术工程
- 岩石机械学 岩石机械学
- 能源科学 能源科学
背景情况:
- 在天然气开采钻井周围的煤炭稳定性对于安全的采矿操作至关重要.
- 煤炭的逐步破坏涉及复杂的能量转移和内部变化.
- 裂纹角度对这些过程的影响需要详细调查.
研究的目的:
- 为了研究裂角度在天然气开采过程中对煤炭稳定性的影响.
- 建立基于弹性应变能量和轴向应变的能量自我抑制进化模型.
- 在不同的裂纹角度下分析宏观能量自我抑制.
主要方法:
- 结合弹性应变能量积累率和输入总应变能量密度.
- 开发了一种自我抑制进化模型,将弹性应变能量与轴向应变联系起来.
- 分析了不同裂纹角度 (0°,30°,45°,60°) 的能量变化和宏观自我抑制.
主要成果:
- 观察到不同的弹性应变能量行为:"步骤"和"悬崖"下降 (0°,30°),收益率平台 (45°) 和"双峰" (60°).
- 验证了能量自我抑制进化模型,其关键参数 (p,q) 显示适应度高于0.99.
- 证明了模型在描述力-变形-破坏定律方面的准确性.
结论:
- 裂纹角度是影响煤炭能量自我抑制机制和稳定的关键因素.
- 开发的能量自我抑制进化模型准确地捕捉了宏观的能量积累过程.
- 了解能量转化抑制机制对于预测煤炭中高峰前能量积累结果至关重要.
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