深部急倾斜厚大金矿采矿方法选择及应用研究  

Study on Selection and Application of Mining Method in Deep Steeply Inclined Thick Gold Mine

作　　者：曲岩 涂旭东 马浩吉 QU Yan;TU Xudong;MA Haoji(Shaanxi Fengxian Sifang Gold Mine Co.,Ltd.)

机构地区：[1]陕西凤县四方金矿有限责任公司

出　　处：《现代矿业》2022年第10期77-80,共4页Modern Mining

摘　　要：四方金矿随着开采深度增加,继续采用无底柱分段崩落法开采会面临采空区安全及技术经济指标变差等问题。针对深部矿体赋存条件及地压变化情况,综合考虑技术经济指标、矿体围岩安全条件及矿体赋存条件,对分段空场嗣后充填采矿法及大直径深孔阶段空场嗣后充填采矿法进行比较。分段空场嗣后充填采矿法的贫损指标优于后者,且在矿体围岩不稳定的条件下回采安全性较好。最终确定采用分段空场嗣后充填采矿法并开展工业试验,取得了较好的效果。With the increase of mining depth in Sifang Gold Mine,the continuous use of non-pillar sublevel caving mining will face the problems of goaf safety and poor technical and economic indicators.In view of the occurrence conditions of deep ore bodies and the change of ground pressure,considering the technical and economic indicators,the safety conditions of surrounding rock and the occurrence conditions of ore bodies,the sublevel open stoping with subsequent filling mining method and the large diameter deep hole stage open stoping with subsequent filling mining method are compared.The depletion index of sublev⁃el open stoping with subsequent filling method is better than the latter,and the mining safety is better un⁃der the condition of unstable surrounding rock.Finally,the sublevel open stoping with subsequent filling mining method was adopted and industrial tests were carried out,and good results were achieved.

关 键 词：急倾斜厚大矿体 分段空场嗣后充填采矿法 技术经济指标 

分 类 号：TD863[矿业工程—金属矿开采]