武宁县大湖塘南区钨矿浅孔留矿法治理采矿的二次贫化做法  

Secondary Dilution Control of Shallow Hole Retaining Method Mining

作　　者：黄小钟 Huang Xiaozhong(Jiangxi JuTong Industrial Co.,Ltd.,Wuning 332300,Jiangxi)

机构地区：[1]江西巨通实业有限公司,江西武宁332300

出　　处：《福建冶金》2024年第2期1-3,共3页Fujian Metallurgy

摘　　要：实践证明,浅孔留矿法开采二次贫化的主要原因是围岩崩落,其原因是江西巨通实业有限公司武宁县大湖塘南区钨矿的地质和开采条件所致。采取调整采场参数、优化爆破参数、锚杆加固围岩、回采时固定漏斗出矿、采空后治理采空区、治理采掘二次贫化等控制措施,对矿山进行二次贫化改造。Combined with the geology and mining conditions of the tungsten mine in Dahutang South District,Wuning County,an in-depth analysis of surrounding rock caving is the main reason for the secondary dilution of shallow hole retention method mining.In order to effectively control the secondary dilution of mining,control measures such as adjustment of stope parameters,optimization of blasting parameters,bolt reinforcement of surrounding rock,fixed hopper extraction during the stoping period,and goaf management after the end of mining are adopted.

关 键 词：采矿二次贫化 有底柱浅孔留矿法 降低贫化率 矿压管理 

分 类 号：TD864[矿业工程—金属矿开采]