基于FLAC^(3D)模拟的地下铁矿进路参数优化研究  

Optimization Study of Underground Iron Ore Mine Approach Parameters Based on FLAC^(3D)Simulation

作　　者：杨超凡 黄刚[1] 刘发平 刘明宇 翟昊 刘昊 王强[3] YANG Chao-fan;HUANG Gang;LIU Fa-ping;LIU Ming-yu;ZHAI Hao;LIU Hao;WANG Qiang(School of Resources and Environmental Engineering,Wuhan University of Technology,Wuhan 430070,China;Gushan Mining Co Ltd,Anhui Masteel Mining Resources Group,Ma'anshan 243000,China;Mining Branch of Jinduicheng Molybdenum Co Ltd,Xi'an 710000,China)

机构地区：[1]武汉理工大学资源与环境工程学院,武汉430070 [2]安徽马钢矿业资源集团姑山矿业有限公司,马鞍山243000 [3]金堆城钼业股份有限公司,西安710000

出　　处：《武汉理工大学学报》2024年第9期118-126,共9页Journal of Wuhan University of Technology

基　　金：国家自然科学基金面上项目(42271296)。

摘　　要：为确保白象山铁矿在复杂环境下的安全开采,对各中段盘区进行岩体结构调查,并运用Q法、RMR法、BQ法对岩体稳定性做出评价分析,得出井下岩体整体稳定性等级在Ⅲ~V级,稳定性较差。并运用Mathews稳定图表法与数值模拟相结合,考虑在不同宽度条件下合理的进路参数。综合分析得出,通过Mathews稳定图表法推算出允许的进路宽度为3~7 m;随着进路宽度的增加,顶板破坏范围越大,围岩稳定性越差,故选取进路宽度为4 m,更符合矿山开采安全、稳定、经济要求。In order to ensure the safe mining of Baixiangshan iron ore mine in complex environment,rock structure investigation was conducted in each middle section of the disk area,and Q method,RMR method and BQ method were applied to evaluate and analyze the rock stability,which concluded that the overall stability grade of underground rock body is inⅢ~V,with poor stability.The Mathews stability chart method was used in combination with numerical simulation to consider the reasonable approach parameters under different width conditions.Comprehensive analysis,through Mathews stability chart method to deduce the permissible approach width of 3~7 m;with the increase of the approach width,the larger the damage range of the roof plate,the worse the stability of the surrounding rock,so choose the approach width of 4 m,more in line with the safety,stability and economic requirements of the mine mining.

关 键 词：进路参数 Mathew法 数值模拟 顶板变形 

分 类 号：TD853[矿业工程—金属矿开采]