软破矿体分层分区组合式崩落采矿法研究与应用  

Research and Application on Caving Mining Method with Hierarchical and Regional Combination for Soft and Broken Orebody

作　　者：杨宁[1,2,3] 尹贤刚[1,2,3] 肖木恩[1,2,3] 赖伟[1,2,3] 

机构地区：[1]长沙矿山研究院有限责任公司,湖南长沙410012 [2]金属矿山安全技术国家重点实验室,湖南长沙410012 [3]国家金属采矿工程技术研究中心,湖南长沙410012

出　　处：《矿业研究与开发》2016年第9期1-3,共3页Mining Research and Development

摘　　要：四川会理铅锌矿矿岩松软破碎,采准施工周期长,巷道支护工程量大,后期维护工程量大,严重影响了矿山生产安全和回采的经济性。针对矿山原有的有底柱分段崩落法存在的问题,提出采用分层分区组合式无底柱崩落采矿法,该方法分区采准,分区落矿,缩短了采准工程服务时间,采准切割、回采、出矿形成一个循环,可有效提高回采效率和回采安全性,获得了较好的经济效益。Huili lead-zinc mine in Sichuan had the characteris~ tics of soft and broken orebody, long mining construction period, as well as huge supporting and maintenance quanti- ties, which seriously impacted on the production safety and stoping economy. Aimed at the existing problems of sublevel caving with sill pillar, non-pillar sublevel caving method with hierarchical and regional combination was put forward to realize the stoping and ore-drawing in different zones and to shorten the service period of mining engineering. Mean- while the mining cutting, stoping and ore-drawing formed a circulation, which could effectively improve the efficiency and safety of stoping, with a good economic benefit.

关 键 词：软破矿体 分层分区组合 崩落采矿法 

分 类 号：TD853.361[矿业工程—金属矿开采]