肋板式人工假底在石湖金矿的应用  

Application of rib plate artificial false bottom in Shihu Gold Mine

作　　者：刘龙琼 王征 周乐 宋士生 温耸 Liu Longqiong;Wang Zheng;Zhou Le;Song Shisheng;Wen Song(Changchun Gold Research Institute Co.,Ltd.;Hebei Zhongjin Gold Co.,Ltd.;Shihu Mining Co.,Ltd.,China National Gold Group Co.,Ltd.)

机构地区：[1]长春黄金研究院有限公司采矿研究所,130012 [2]河北中金黄金有限公司 [3]中国黄金集团石湖矿业有限公司

出　　处：《黄金》2021年第9期67-71,共5页Gold

基　　金：中国黄金集团有限公司科研项目(A2019ck07)。

摘　　要：为维护岩体稳定,为下分段顶柱回采创造作业条件,提高资源回采率,石湖金矿在平行中深孔分段充填采场采用高强度肋板式人工假底替代矿体构筑底部结构。通过理论分析,确定人工假底可行性,并提出肋板式人工假底构筑方案。现场应用表明:在每个采场底部构筑人工假底,实现了矿体安全高效回采的目的,采矿损失率降低到3.52%,矿石贫化率降低到5.36%,采场不留底柱,平均每个矿块可新增经济效益526万元。In order to maintain the stability of rock mass, create working conditions for sublevel top pillar extraction, and improve the recovery rate of resources, Shihu Gold Mine adopted high-strength rib plate artificial false bottom to substitute the orebodies to construct bottom structures in the parallel medium-long hole sublevel filling stope.Through theoretical analysis, the paper determined the feasibility of artificial false bottom, and put forward the construction scheme of rib plate artificial false bottom construction.The field application shows that artificial false bottom construction at the bottom of each stope meets the goal to safely and efficiently mine the orebodies, lowers the mining loss rate to 3.52 % and the ore dilution rate to 5.36 %.Without sill pillars, each ore block can create 5.26 million yuan more profits on average.

关 键 词：平行中深孔分段充填 肋板式 充填体 人工假底 底部结构 

分 类 号：TD853.34[矿业工程—金属矿开采]