研究采矿诱导的压力行为在周围岩石的岩石爆炸矿在巨大的埋藏深度和硬超负荷下
Xingen Ma1,2, Bing Hu2, Eryu Wang3,4,5
1China University of Mining and Technology, Xuzhou, 221000, China.
Scientific reports
|May 14, 2025
概括
这项研究分析了新疆煤矿的应力分布,这是一个容易发生岩石爆炸的深层煤矿. 数字模拟确定了200米的合理工作面宽度,以有效地预防和控制岩石爆破.
科学领域:
- 采矿工程 采矿工程 采矿工程
- 地质技术工程 地质技术工程
- 岩石机械学 岩石机械学
背景情况:
- 新庄煤矿是一座深达一公里的矿山,具有具有挑战性的地质条件,包括深度埋葬,厚厚的地表土壤和硬过载.
- 该矿目前处于基础建设阶段,需要为未来的生产进行基础研究.
- 了解应力分布对于管理这些矿山的岩石爆炸风险至关重要.
研究的目的:
- 为了调查新疆煤矿的石头中周围岩石的应力分布规律.
- 为岩石爆破预防和控制策略提供理论支持.
- 确定最佳的工作面尺寸,以确保安全高效的采矿操作.
主要方法:
- 建立一个大型的三维精细的数值模型,用于面板1的煤炭8的西翼.
- 数字模拟分析应力分布,弹性能量积累和塑性区域特征.
- 在复杂的地质条件下对采矿压力演变的评估.
主要成果:
- 该研究确定了采矿应力,弹性能量和塑料区域在各种工作面宽度的分布特征.
- 确定州煤矿的合理工作面宽在175米至250米之间,设计的200米宽被认为是适当的.
- 揭示了采矿压力,弹性能量积累和塑料区分布的进化规律和影响因素.
结论:
- 这项研究提供了关键的见解,挖矿压力行为在深度,硬岩矿容易发生岩石爆炸.
- 这些发现支持安全工作面尺寸的设计,特别建议在新庄煤矿采用200米宽.
- 这项研究为面临类似地质挑战和岩石爆炸风险的矿山提供了宝贵的理论支持和实践参考.
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