缓倾斜中厚矿体微贫损动态控制技术研究  

Research on dynamic control technology for slight dilution and loss in moderately inclined medium-thick ore bodies

作　　者：侯俊 卢铀嘉 刘彦君 Hou Jun;Lu Youjia;Liu Yanjun(Changchun Gold Research Institute Co.,Ltd.;Key Laboratory of Ground Control Management Plan in Deep Metal Mines,National Mine Safety Administration;Inner Mongolia Baotou Xinda Gold Mining Co.,Ltd.)

机构地区：[1]长春黄金研究院有限公司 [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 [3]内蒙古包头鑫达黄金矿业有限责任公司

出　　处：《黄金》2024年第7期1-5,共5页Gold

基　　金：国家重点研发计划项目(2022YFC2905004)。

摘　　要：缓倾斜中厚矿体赋存条件较为特殊,采场空顶高度较高,顶板管理困难,采准工程量大,开采难度较大,普遍存在采矿损失率高、矿石贫化率高等问题。针对鑫达黄金矿业公司囫囵图矿区32-2号脉采场桃形矿柱难回收、贫损指标不理想等问题,研发缓倾斜中厚矿体微贫损动态控制技术,系统运用全方位钻孔测斜技术,反演设计炮孔与实际炮孔的三维空间模型,研究钻孔偏斜规律,大幅度降低矿石贫化率,在回采过程中2条凿岩巷道之间的桃形矿柱采用多孔深协同组合开采技术,有效降低了采矿损失率,显著提升资源利用率和技术经济指标,可为类似矿山安全高效开采提供新的技术途径。The moderately inclined medium-thick ore bodies have unique occurrence conditions,with fairly high stope ceiling heights,difficult roof management,large amounts of preliminary mining work,and significant mining challenges.Common issues include high mining loss rates and high ore dilution rates.To address the problems in the stope of Vein 32-2 of the Huluntu mining area at Xinda Gold Mining Company,such as the difficulty in recovering the peach-shaped ore pillars and unsatisfactory dilution and loss indicators,a dynamic control technology for slight dilution and loss in moderately inclined medium-thick ore bodies was developed.This technology systematically utilizes all-around borehole inclinometry,reversely deduces the 3D spatial model of the designed boreholes versus actual boreholes,and studies the borehole deviation patterns.It significantly reduces the ore dilution rate.During the recovery process,the peach-shaped ore pillars between two drilling drifts are mined using a mining method with a combination of different hole lengths,effectively reducing the mining loss rate.This approach significantly enhances resource utilization and the technical and economic indicators,providing a new technical pathway for the safe and efficient mining of similar mines.

关 键 词：缓倾斜中厚矿体 全方位钻孔 钻孔测斜 多孔深协同组合开采 微贫损动态控制 采矿损失率 

分 类 号：TD353[矿业工程—矿井建设]