空区探测及3D建模技术在采矿损失贫化核算中的应用  

Application of goaf detection and 3D modeling technology in mining loss and dilution accounting

作　　者：万飞 宋卫东 曹帅[1,2] 高玉杰 郭建民[3] 杨勇 Wan Fei;Song Weidong;Cao Shuai;Gao Yujie;Guo Jianmin;Yang Yong(School of Civil and Resource Engineering,University of Science and Technology Beijing;State Key Laboratory of High-efficient Mining and Safety of Metal Mines,Ministry of Education, University of Science and Technology Beijing;Jiaojia Gold Mine,Shandong Gold Mining(Laizhou)Co.,Ltd.)

机构地区：[1]北京科技大学土木与资源工程学院 [2]北京科技大学金属矿山高效开采与安全教育部重点实验室 [3]山东黄金矿业(莱州)有限公司焦家金矿

出　　处：《黄金》2018年第9期26-29,共4页Gold

摘　　要：针对焦家金矿深部矿体上向水平进路充填采矿法二步骤矿柱回采降低采矿损失贫化的问题,采用VS150空区扫描系统对矿房回采后形成的空区进行精细化探测,将其结果导入3Dmine软件中生成三维模型实体。通过对模型切割水平剖面和垂直剖面,定量分析采场超、欠挖情况,计算得出矿石贫化率为5. 1%,采矿损失率为6. 8%;同时,通过垂直剖面中的矿柱轮廓,为下一步矿柱回采时炮孔精细化设计提供详细依据,从而达到降低采矿损失贫化的目的。对类似矿山二步骤矿柱回采降低采矿损失贫化具有一定的参考价值。In order to reduce loss and dilution of ore bodies in the Jiaojia Gold Mine by two-step ore pillar extraction with upward horizontal approach and filling mining method,VS150 goaf scanning system is used to detect the goaf formed after ore room stoping,and the results are imported into 3Dmine software to generate three-dimensional model.The model is cut through horizontal section and the vertical section,the quantitative analysis of the over and under excavation in the stope is conducted,and the ore dilution rate is calculated to be 5.1%and the mining loss rate 6.8%;At the same time,the profile of the pillar in the vertical section can provide detailed basis for fine design of the blast holes in the next stage of mining,so as to achieve the goal of reducing the ore dilution and mining loss.This method has certain reference value for two-step ore pillar extraction to reduce the mining loss and dilution in similar mines.

关 键 词：空区探测 3D建模 采矿损失率 矿石贫化率 精细化探测 上向水平进路充填采矿法 

分 类 号：TD853[矿业工程—金属矿开采]