罗河铁矿高阶段采场条柱开采扰动效应研究  

Study on Disturbance Effect of Pillar Mining in High Stage Stope of Luohe Iron Mine

作　　者：董亚宁[1] 王忠强 肖松丽 DONG Yaning;WANG Zhongqiang;XIAO Songli(Anhui Masteel Luohe Mining Co.,Ltd.)

机构地区：[1]安徽马钢罗河矿业有限责任公司

出　　处：《现代矿业》2022年第1期53-56,61,共5页Modern Mining

摘　　要：针对罗河铁矿高阶段采场矿房片帮、条柱冒落等地压不良显现问题,利用FLAC3D软件,对回采过程中采空区顶板及其围岩的地压分布时空演变和位移动态变化过程进行模拟研究,分析条柱不同去除程度对二步骤采场顶板、底板的地压显现规律和稳定性的影响,确定条柱去除的可行性,从而对工程提出安全合理的建议。Aiming at the appearance of poor ground pressure such as piece and pillar falling in the high-stage stope of Luohe Iron Mine,the FLAC^(3D) software is used to simulate the temporal and spatial evo⁃lution of the ground pressure distribution and the dynamic change process of the displacement of the roof of the goaf and its surrounding rocks during the mining process.The influence of different removal degrees of pillars on the appearance and stability of the ground pressure on the roof and bottom of the two-step stope are analyzed,the feasibility of pillar removal is determined,and safe and reasonable suggestions for the project is put forward.

关 键 词：地压显现 空区失稳 数值模拟 条柱 

分 类 号：TD861.1[矿业工程—金属矿开采]