深部高大采场全尾砂胶结充填理论分析  

Theoretical Analysis on Cemented Full Tailings Backfilling in Deep and Large Size Stope

作　　者：杨耀亮[1] 邓代强[1] 惠林 李爱兵[1] 王发芝 

机构地区：[1]长沙矿山研究院,湖南长沙410012 [2]冬瓜山铜矿,安徽铜陵市244031

出　　处：《矿业研究与开发》2007年第4期3-4,20,共3页Mining Research and Development

基　　金："十五"国家科技攻关课题(2004BA615A-04-01-03)

摘　　要：冬瓜山铜矿深部矿体距地表约1000 m,矿区构造应力复杂,属高地应力分布区域,采用空场嗣后全尾砂胶结充填法开采。在实验室试验结果的基础上,采用Terzaghi法和Thomas法对其高大型采场充填体受力状况进行了理论分析,用有限元法对采场围岩和充填体的应力分布状况进行了研究,确定了开采扰动条件下在采场周围形成的不同程度破坏区域。In Dongguashan Copper Mine, the ore body occurs in about 1 km beneath the earth surface, the tectonic stress is very complex, the geostress is high, and open stoping with subsequent full tailings cementation filling is adopted. Based on the results from laboratory experiment, the forces on the cemented full tailings lined in high and large mined - out area was theoretically analyzed using Terzaghiand method and Thomas method, the stress distribution of backfill and surrounding rock was studied by use of FEM, and the diverse failure zones due to excavation disturbance in the surrounding rock of stope were determined.

关 键 词：深部开采 高大采场 全尾砂胶结充填 

分 类 号：TD853.343[矿业工程—金属矿开采]