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合作优化马修斯稳定性图法和数值模拟的限制暴露面积在stoppe的合作优化
Chunlin You1, Jianhua Hu2, Jianing Li3
1Zijin School of Geology and Mining, Fuzhou University, Fuzhou, 350108, Fujian, China.
Scientific reports
|July 21, 2025
概括
这项研究通过使用扩展的马修斯稳定性图表和数值模拟来评估停止稳定性,提高了地下铁矿的安全性. 最佳的曝光区域和缩短的曝光时间显著提高了停止稳定性和操作效率.
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
- 岩石力学 岩石力学 岩石力学
背景情况:
- 在倾斜的铁矿石中,悬挂墙暴露给矿山的安全性和效率带来了风险.
- 准确的停滞稳定性评估对于地下采矿业务至关重要.
研究的目的:
- 为了评估倾斜矿体的地下铁矿的停滞稳定性.
- 为了确定最佳的停止尺寸和曝光时间,以提高安全性和效率.
主要方法:
- 使用扩展的马修斯稳定性图形方法与数值模拟 (FLAC3D) 相结合.
- 使用岩石质量评分 (RMR) 系统和Q'值评估岩石质量质量.
- 通过分析暴露时间和机械反应来确定稳定性概率.
主要成果:
- 扩展的马修斯稳定性图有效地确定了各种暴露区域的稳定性概率.
- 增加停车长度改善了应力分布,减少了塑料的破坏.
- 减少曝光时间和优化曝光区域 (例如30m x 15m,40m x 12.5m) 提高了停止稳定性.
结论:
- 该研究为优化停车设计和操作参数提供了实际指导方针.
- 这些发现有助于提高地下铁矿石开采的安全性和效率.
- 推的最大暴露时间为3个月,相应的极限暴露区域提高了Step的稳定性.
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