Practice of Non-pillar Mining in Xin'an Coal Industry

In order to exploit the limited resources of coal maximumly and improve the recovery rate of coal resources,Xin’an coal industry carries out effective practices and exploration of non-pillar mining,summes up a set of non-pillar mining experience,which not only eases the tension situation of mining-excavation relay,but also improves the recovery rate of coal resources and has better promoting value.