呼伦贝尔山金矿业有限公司急倾斜极薄矿体采矿方法研究  

Study on mining methods for steeply inclined extremely thin ore bodies of HulunBuir Shanjin Mining Co.,Ltd.

作　　者：李永新 王庆磊 吕军恩 Li Yongxin;Wang Qinglei;Lü Jun'en(HulunBuir Shanjin Mining Co.,Ltd.)

机构地区：[1]呼伦贝尔山金矿业有限公司

出　　处：《黄金》2023年第2期19-21,共3页Gold

基　　金：国家自然科学基金项目(51974043)。

摘　　要：三河铅锌矿区矿体多属于急倾斜极薄矿体,原采用浅孔留矿采矿法开采存在采矿损失贫化大,采矿效率低等问题,根据矿区长远发展目标及绿色矿山建设要求,提出开展脉内上向分层及削壁充填联合采矿法试验研究。采场沿走向布置,由脉内巷道向矿脉下盘掘进出矿联络巷道,采准工程基本布置在脉内,不设间柱回采,减少了采矿损失率;且用尾砂进行部分充填,有利于地压控制。工业试验结果表明,脉内上向分层及削壁充填联合采矿法各项技术经济指标符合矿山要求,对于开采急倾斜极薄矿体具有良好的效果。The ore bodies are mostly steeply inclined extremely thin ore bodies in Sanhe Lead-Zinc District.The original short-hole shrinkage mining method is large in loss and dilution and poor in mining efficiency.Based on the long-term development goals and green mine construction requirements, the paper put forward the experimental study of joint in-vein upward slicing and resue-and-fill mining method.The stope is laid out along the strike.The ore-drawing connection roadway is excavated from the in-vein roadway to the ore vein footwall.The mining preparations are basically laid out in veins.No inter-pillars are extracted, and the mining loss rate is reduced.Part of the filling is done with tailings, which are conducive to ground pressure control.Industrial test results show that each index of joint in-vein upward slicing and resuing-and-filling mining method meets the requirements of mines.The method shows good results when mining steeply inclined extremely thin ore bodies.

关 键 词：急倾斜 极薄矿体 脉内上向分层 削壁充填 地压控制 

分 类 号：TD853[矿业工程—金属矿开采]