地下金属矿山新型无矿柱连续开采方法试验研究

Experimental Research on the New Non-pillar Continuous Mining Method for Underground Metal Mines

通过对安庆铜矿1#矿体整体开采方案的试验研究,提出一种地下金属矿山新型无矿柱连续开采方法:利用高强度尾砂胶结充填体和出矿底部结构的三角矿柱形成隔离层替代阶段间水平矿柱,并通过合理的采场布置、回采顺序和充填方法,确保各阶段采场安全高效开采。该方法为全矿体连续开采提供一种新思路,对丰富连续开采理论有着一定意义。

Through the experimental research on the entire mining scheme for 1# ore-body of Anqing Copper Mine,a new non-pillar continuous mining method for underground metal mines is proposed.In this method,a isolation layer formed by the high strength cemented tailing filling body and the triangle pillars at bottom structure replaces the horizontal floor pillars.Also,every mining step should be ensured to be safe and high efficient through reasonable stope layout,stoping sequence and backfill method.This method provides a new thought for the continuous mining of total ore-body.It has a certain significance for enriching the theory of the continuous mining.