Application of filling stoping with bottom pillar in Langyashan Copper Mine

To improving operation efficacy,the original operation process,upward slicing and filling stoping without pillar,has been improved instead of by upward slicing and filling stoping with bottom pillar in Langyushan Copper Mine.The improved operation process avoids a large number of engineering required for undercutting during formation of ore block in prophase,and mining pillar in later stage,improving mining efficacy,getting better economy and social benefits,which provides a reference to other mine with similar conditions.