某锰矿采矿方法的技术改进

An Improvement of Mining Method in a Manganese Mine

某锰矿东区缓倾斜薄至中厚矿体,占矿区资源储量约80%,开采后期矿体赋存条件复杂多变,属于难开采矿体。如何安全、有效地回收宝贵的地下矿产资源,选择针对性较强的采矿工艺很关键。该矿山企业曾经工业试验成功并推广应用的人工柱锚杆护顶房柱法,生产后期暴露出适用性不足的问题,改用盘区式进路胶结充填法后,取得了积极效果。

An eastern region in a manganese mine is gently inclined to medium-thick orebody with its mining area reserves of about 80%.Its mined ore in late conditions is complicated and difficult to open mines.How to effectively reclaim valuable underground mineral resources and how to safely choose the specific mining process is critical.The mining enterprises had made a successful industrial test.The application of artificial column bolt roof support in a pillar-and-room method was later exposed in the lack of applicability.We have changed to use a panel approaching after cementing filling-method to achieve positive results.