首页|复杂条件超大规模连续盘区多中段开采应力扰动规律研究

复杂条件超大规模连续盘区多中段开采应力扰动规律研究

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以某超大规模开采铁矿为研究对象,模拟了矿区超大规模连续盘区多中段充填采矿过程,重点对回采过程中的围岩扰动应力演化规律进行了分析.结果显示多中段开采的扰动叠加效应对26 m矿柱稳定性影响显著.两中段之间存在卸压现象,深部采区-580 m水平以下应力集中明显.研究结果可供连续盘区超大规模开采、深井矿山卸压开采等借鉴参考.
Research on the Stress Perturbation Laws of Complex Super-large-scale Continuous Panel Multi-level Mining
This research simulated the super-large-scale continuous panel multi-level mining and filling process of a super-large iron mine,and the stress perturbation law was focused on.Results show that the overlaying effect of muti-level mining has negative effects on the stability of the 26 m-wide pillar apparently.There are stress-releasing area between two levels and obvious stress concentration areas below Level-580 m.The result can be a good reference for continuous panel super-large-scale mining and stress-releasing mining in deep mine.

super-large-scale miningmulti-level miningstress perturbation

吴昊燕、刘育明、马黎明、孙学森、胡世超

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中国恩菲工程技术有限公司,北京 100038

深部金属矿采动地压灾害防控国家矿山安全监察局重点实验室,北京 100038

鞍钢集团矿业有限公司,辽宁鞍山 114000

深井矿山 水平矿柱 应力演化

重点研发专项(十四五)

2023YFC2907201

2024

中国矿山工程
中国有色工程设计研究总院

中国矿山工程

影响因子:0.335
ISSN:1672-609X
年,卷(期):2024.53(1)
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