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脉内顺路天井中深孔嗣后充填采矿法在玲珑金矿的应用
- 刘涛|姜培根|乔俊斌|白腾飞|任基
- 作者单位：
- 山东黄金矿业（玲珑）有限公司|山东黄金矿业（玲珑）有限公司|山东黄金矿业（玲珑）有限公司|山东黄金矿业（玲珑）有限公司|中南大学资源与安全工程学院
基金项目：
- 国家重点研发计划项目(2023YFC2907400)
详细信息：
- 作者简介：
- 刘涛（1989—），男，工程师，从事采矿工程技术管理工作；E-mail:liutao826@163.com
- 通讯作者：
- isnull
- PDF下载
Application of in-vein along-the-way raise medium-long hole and subsequent filling mining method in Linglong Gold Mine
- English Author：
- Shandong Gold Mining (Linglong) Co.,Ltd.;School of Resources and Safety Engineering,Central South University
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
针对玲珑金矿急倾斜薄矿脉历年来一直采用浅孔留矿采矿法开采，采矿效率低且安全性难以保障等问题，提出了一种脉内顺路天井中深孔嗣后充填采矿法。在采场顶部留设顶柱，中间布置1条顺路天井作为人行通风通道，同时利用该顺路先自上而下施工所有炮孔，然后自下而上逐层爆破，爆落的矿石借自重落入采场底部，采用平底出矿穿底部结构，用铲运机装入矿车运走。应用实践表明：该采矿方法通过控制采幅实现了安全高效开采的目的，采矿损失率为1.19 ％，矿石贫化率为12.6 ％，采矿效率较浅孔留矿采矿法提高了47 ％，且人员通过底部出矿穿出矿，安全性大大提高。
关键词:
急倾斜薄矿脉；中深孔；嗣后充填；脉内顺路天井；底部结构
Abstract:
In view of the problems such as low mining efficiency and difficulty in guaranteeing safety because the steep thin ore body in Linglong Gold Mine has been mined by short-hole shrinkage method over the years,this paper presents in-vein along-the-way raise medium-long hole and subsequent filling mining method.The top pillar shall be reserved at the top of the stope,and an along-the-way raise is arranged in the middle as a pedestrian ventilation channel.At the same time,all blast holes are first constructed from top to bottom and then blasted from bottom to top layer by layer.The blasted ore falls into the bottom of the stope by self-weight,adopts the bottom structure of flat bottom ore passing,and is transported by scraper into the mine car.The application practice shows that the mining method achieves the goal of safe and efficient mining with an mining loss rate of 1.19 % and an ore dilution rate of 12.6 % by controlling the mining width.The mining efficiency is 47 % higher than that of the original short-hole shrinkage method,and the safety is greatly improved by letting personnel through the mine by bottom ore passing.
Keywords:
steeply inclined thin ore body;medium-long hole;subsequent filling;in-vein raise;bottom structure
