深部复杂难采矿体崩落法开采地压数值模拟分析  

Numerical Simulation on Ground Pressure of Caving Mining Complex Troublesome Orebody with Great Depth

作　　者：肖益盖[1,2,3] 王星[1,2,3] 杨家冕[1,2,3] 

机构地区：[1]中钢集团马鞍山矿山研究院有限公司,安徽马鞍山市243000 [2]金属矿山安全与健康国家重点实验室,安徽马鞍山市243000 [3]华唯金属矿产资源高效循环利用国家工程研究中心有限公司,安徽马鞍山市243000

出　　处：《矿业研究与开发》2016年第2期4-7,共4页Mining Research and Development

基　　金："十二五"国家科技支撑计划项目(2012BAB14B01)

摘　　要：根据桃冲矿业长龙山矿床开采历史和矿床地质条件,对矿山转入地下开采采用的无底柱分段崩落采矿法和开采条件进行了调查分析,发现0m水平以下矿体由急倾斜变为缓倾斜,地压条件也比较复杂,利用数值模拟方法,分析矿体倒转之后的地压活动规律,结果表明采用单翼推进回采方案有利于控制地压,倒转部位顶板空区面积宜控制在1700m2以内,从而为矿山生产管理提供了理论依据。The non-pillar sublevel caving mining method and the underground mining condition of deposit were investigated according to the mining history and geological conditions of Changlongshan ore mine in Taochong Mining Company. It indicated that the ore body below the 0 m level turned to steeply inclined from inclined and the pressure condition was more complex. The mining activities after the orebody inversion was analyzed with numerical simulation method, which showed that the single-wing propulsion stoping mining method was helpful to control the pressure, and gap area in the inversion part should be less than 1700 m^2.The study provided theoretical basis for production management in the mine.

关 键 词：难采矿体 地压活动 崩落采矿法 数值模拟 

分 类 号：TD853.362[矿业工程—金属矿开采]