基于FLAC^(3D)的采场结构参数优化  

Parameters Optimization of Stope Structure Based on FLAC^(3D)

作　　者：叶海旺[1,2] 常剑[3,4] 周磊[1,2] 

机构地区：[1]武汉理工大学 [2]矿物资源加工与环境湖北省重点实验室 [3]中钢集团马鞍山矿山研究院有限公司 [4]金属矿山安全与健康国家重点实验室

出　　处：《金属矿山》2010年第12期6-8,26,共4页Metal Mine

基　　金："十一五"国家科技支撑计划项目(编号:2007BAB15B03)

摘　　要：房柱采矿法适合于开采水平或近似水平的矿体,在确保采场安全的前提下,获得较高的矿石回收率和降低矿石损失与贫化的重要途径是选取合理的采场结构参数。利用有限差分软件FLAC3D,建立了开采水平矿体时的采场结构力学模型并进行了数值模拟,分析了采场结构参数对房柱法采场稳定性的影响。然后,针对鄂西缓薄高磷赤铁矿,通过数值模拟,得到了不同深度下的采场最优结构参数,并计算得到了矿石回收率,进而通过线性回归得到回收率随深度变化的函数关系。The room-pillar mining method is suitable to horizontal or nearly horizontal ore body.On the premise of keeping safety of the stope,it is important to select reasonable parameters for improving high recovery and lowering ore dilution ratio and loss rate.The finite-difference software FLAC3D was adopted to build mechanical model of stope structure for horizontal ore,and the numerical simulation was conducted.Then,the influence of structural parameters to the stope stability was analyzed.Aiming at gentle inclined thin ore body in Western Hubei,and by the numerical simulation,the optimum structural parameters were obtained,and ore recovery rate was obtained accordingly,and then the functional relationship of recovery with depth varied was gained.

关 键 词：房柱采矿法 采场稳定性 数值模拟 参数优化 

分 类 号：TD853.362[矿业工程—金属矿开采]