兰尖铁矿无底柱分段崩落法采场结构参数研究  

Study on Structural Parameters of Pillarless Sublevel Caving in Lanjian Iron

作　　者：宋晓双 杨溢[1] 刘磊[1] 王昌[1] 

机构地区：[1]昆明理工大学国土资源工程学院,云南昆明650093

出　　处：《金属矿山》2016年第4期16-19,共4页Metal Mine

摘　　要：以兰尖铁矿尖山矿区1 300 m标高以上挂帮中厚矿体为研究背景,对倾斜边界条件下的无底柱分段崩落法采场结构参数进行研究。根据实验相似原理和达孔量法,通过自制立体放矿模型进行室内放矿模拟实验,根据整理出的实验数据运用3Dmine矿业工程软件建立放出体模型,并结合下盘残留情况得到尖山矿区中厚挂帮矿体20m分段高度结构参数下的最佳放矿步距为5.2 m,崩矿步距为4 m。With the research background of the medium thickness hanging wall orebody over 1 300 m elevation of Lanjian Iron mining,the structure parameters of the sublevel caving stope under the tilted boundary condition is researched. According to the similarity principle and the coordinator quantity of adjusting to zero,the indoor ore drawing simulation experiment research with the self-made solid ore model is made. According to the experiment data compiled,the dram-out object model is built with the 3Dmine mining engineering software. Combining with the residual condition of heading side,it is obtained that the optimal drawing pace is 5. 2 m and rate of advance during ore breaking is 4 m under the structure parameters of the Jianshan mining medium area thickness orebody 20 m segmented height.

关 键 词：无底柱分段崩落法 放矿模型 标志颗粒 崩矿步距 3Dmine 

分 类 号：TD853.36[矿业工程—金属矿开采]