调查Ziluoyi铁矿石开采现场易发生不稳定的多个坡度的坡度稳定性
Zhongao Yang1,2,3, Ziling Song4, Xiaohua Ding5,6,7
1College of Environmental Science and Engineering, Liaoning Technical University, Fuxin, 123000, China. 18596301091@163.com.
Scientific reports
|January 13, 2025
概括
这项研究使用岩石力学评估铁矿矿山的坡度稳定性. 调查结果证实安全标准得到满足,确保高效运营和工人安全.
科学领域:
- 地质技术工程 地质技术工程
- 岩石机械 岩石机械
- 采矿工程 采矿工程 采矿工程
背景情况:
- 斜坡的不稳定性是矿石开采中的一个重大问题,影响工人的安全和运营连续性.
- 齐鲁奥伊铁矿石开采现场为调查斜坡稳定性挑战提供了一个相关的案例研究.
研究的目的:
- 评估来自Ziluoyi铁矿石矿的岩石和矿石样本的地力学特性.
- 在各种负载条件下分析采矿斜坡的稳定性.
- 确保矿山运营符合安全标准.
主要方法:
- 在外围岩石和矿石体样本上进行了单轴压缩和剪切测试.
- 应用了Hoek-Brown和Mohr-Coulomb标准来确定岩石质量的特性.
- 岩石质量减少模型和Morgenstern-Price方法用于稳定性分析.
- 安全系数在自重,地下水,爆炸和地震负荷下计算.
主要成果:
- 压力强度和弹性模量值为不同类型的岩石确定.
- 凝聚力和内部摩擦角度是使用已确定的地质技术标准来计算的.
- 在各种负载场景下,获得了三条斜坡的安全系数值,范围从1.162到1.354.
- 对斜坡层的评估RMR得分和岩石质量常数 (m和s).
结论:
- 计算的安全值因子符合国土安全规格.
- 采用的方法有效地评估了采矿环境中的斜坡稳定性.
- 该研究确保了有效地运营矿山的安全标准得到满足.
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