黄岗铁矿采空区稳定性评价及治理方案研究  

Study on Stability Evaluation and Treatment Scheme of Goaf in Huanggang Iron Mine

作　　者：甯瑜琳 姜凡均 林卫星 NING Yulin;JIANG Fanjun;LIN Weixin(Changsha Institute of Mining Research Co.,Ltd,Changsha,Hunan 410012,China;National Engineering Research Center for Metal Mining,Changsha,Hunan 410012,China)

机构地区：[1]长沙矿山研究院有限责任公司,湖南长沙410012 [2]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》2019年第8期74-77,共4页Mining Research and Development

摘　　要：为对分段空场法和浅孔留矿法采后的空区进行治理,通过工程地质调查及室内岩石力学实验,获得了开采区域内上盘大理岩岩组、磁铁矿岩组、下盘矽卡岩岩组的岩石物理力学指标;通过计算岩体的稳定性系数,结合Mathews图解方法,得出了岩体的容许水力半径,对采空区的稳定性分级进行了判定。结合国内外采空区处理的经验和矿山实际情况,选择采用废石充填采空区方案对处于过渡区的采空区及其他需要及时处理的采空区进行治理,对其他采空区进行封闭处理。结果表明,实施采空区综合治理方案后,安全有效地对采空区进行了治理,消除了采空区对井下正常生产的影响。In order to treat the goaf after mining by sublevel open stoping method and shallow hole shrinkage stoping method,through the engineering geological survey and laboratory rock mechanics experiment,the rock physical and mechanical indexes of upper marble rock group,magnetite rock group,and the lower skarn rock group in the mining area were obtained.By calculating the stability coefficient of rock mass,the permissible hydraulic radius of rock mass was obtained with Mathews graphical method,and the stability classification of goaf was determined.Combined with the experiences of goaf treatment at domestic and overseasand actual situation of this mine,the waste rock filling scheme was selected to treat the goaf in the transition area and other goaf needing timely treatment,and to seal the other goafs.The results showed that after implementing the comprehensive treatment scheme,the goaf was safely and effectively treated,and the influence of goaf on normal production was eliminated.

关 键 词：采空区 Mathews 稳定性 空区治理 

分 类 号：TD853.391[矿业工程—金属矿开采]