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  

Research on the Stress Perturbation Laws of Complex Super-large-scale Continuous Panel Multi-level Mining

作　　者：吴昊燕 刘育明[1,2] 马黎明 孙学森 胡世超[3] WU Haoyan;LIU Yuming;MA Liming;SUN Xuesen;HU Shichao

机构地区：[1]中国恩菲工程技术有限公司,北京100038 [2]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 [3]鞍钢集团矿业有限公司,辽宁鞍山114000

出　　处：《中国矿山工程》2024年第1期1-6,共6页China Mine Engineering

基　　金：十四五重点研发专项“金属矿深部大盘区无矿柱连续化开采技术与装备”(2023YFC2907201)。

摘　　要：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。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.

关 键 词：深井矿山 水平矿柱 应力演化 

分 类 号：TD323[矿业工程—矿井建设]