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在重复开采的情况下,道路周围岩石的稳定性控制:一个案例研究
Tong Wang1,2,3, Changcheng Wang4,5,6, Ke Yang1,2,3
1State Key Laboratory of Deep Coal Mining and Environmental Protection, Anhui University of Science and Technology, Huainan, 232001, China.
Scientific reports
|November 23, 2025
概括
这项研究分析了重复开采的道路变形,发现减少层间距离加剧了不稳定性. 优化的支系统有效控制了变形,为复杂的应力道路设计提供了指导.
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:
- 相比于单条件,重复采矿使围绕岩石变形和故障的道路复杂化.
- 道路上的大量变形和支故障在采矿业务中带来了重大挑战.
研究的目的:
- 分析不同间距和采矿阶段的道路压力,位移和塑料故障的演变.
- 调查影响地板破裂深度的因素,包括几何和材料特性.
- 开发和验证面临复杂压力条件的道路的优化支持方案.
主要方法:
- 结合理论计算和数值模拟来建模道路行为.
- 分析了间距,采矿阶段和地质参数 (包括角度,内部摩擦角度,高度) 对故障深度的影响.
- 通过现场验证验证并实施优化支持系统,验证了模拟结果.
主要成果:
- 地板故障深度受到包括角度,内部摩擦角度和高度的协同效应的显著影响.
- 减少层间距离加剧了道路变形,导致屋顶移位增加和水平应力峰值.
- 优化的支方案 ("5-4-5"屋顶和"3-4-3"侧线缆;不对称支) 有效地限制了收和位移.
结论:
- 该研究提供了关键的理论指导,用于稳定性控制和支持优化,在道路受到复杂的采矿压力.
- 有效的支持策略对于缓解大变形和确保多层采矿环境中的道路稳定性至关重要.
- 了解地质因素和采矿引发的压力之间的相互作用是设计强大的支持系统的关键.
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