浅层复杂残留矿柱安全开采优化研究  

Optimization Study on Safety Mining of Shallow and Complex Residual Pillar

作　　者：朱青凌[1,2] 尚振华[1,2] 王林 

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]铜陵有色股份天马山黄金矿业有限公司,安徽铜陵市244009

出　　处：《矿业研究与开发》2016年第12期1-4,共4页Mining Research and Development

基　　金：湖南省重大科技专项(2011FJ1003)

摘　　要：回收浅埋且有地表建筑物的矿体,完全不同于其他类矿体的开采,其属于"三下"开采的范畴,因此,安全高效回收建筑物下的复杂矿柱是亟待解决的难题。针对天马山金矿建筑物下浅埋矿柱安全回收的问题,利用"三下"开采和地表移动变形理论分析了采空区坍塌对上覆岩层的影响,采用萨道夫斯基公式计算了爆破振动对地表建筑物的影响。此外,结合矿柱回采过程的数值模拟,对比分析模拟结果与建筑物破坏评价标准,进而确定了最优的采场结构参数,为矿柱的安全回收提供了理论支撑。The recovery of residue ore within shallow ground and with facilities on its surface, is completely different from other ore mining, which belongs to the category of ＂Under- Three＂ mining. Therefore, how to safely and efficiently recover complex pillar under buildings is a tough problem that needed to be solved. Tianmashan gold mine faces above problem. Based on theory of ＂Under-Three＂ mining and surface movement deformation, the influence of goaf-collapse on overburden was analyzed, and the Sadov＇s formula was applied to calculate and analyze the influence of blasting vibration on the buildings. Besides, combining with numerical simulation of recovery process, the results of numerical simulation and evaluation criteria of building damage were eompared and analyzed, which eventually determined the optimal stope structure parameters and provided a theoretical support for the safe recovery of pillar.

关 键 词：残矿回收 “三下”开采 采场结构参数 数值计算 

分 类 号：TD853.391[矿业工程—金属矿开采]