平顶山四矿上行开采的观测与研究

OBSERVATION AND INVESTIGATION OF ASCENDING MINING OF SEAMS IN PINDINGSHAN No4 MINE

为解决平顶山四矿原有生产布局存在的安全、产量及效益等主要问题，运用“三带”判别法和围岩平衡法，对平顶山四矿上行开采进行了研究，并通过对现场上行开采的观测与分析，得出平顶山四矿丁组、戊组、己组和庚组煤之间可正常进行上行开采．同时运用层次分析法优化了平顶山四矿的开采方案，获得了显著的经济效益，为平顶山矿区复采采空区上部遗留的煤炭资源提供了依据和经验．

In order to solve the main problems of the existing layout of No4 Mine, such as safety, production and profit, etc. the ascending mining method employed by this mine was investigated by discriminating method of “three zones” and rock balance method. Observations of the ascending method were also made in site. It was found that the ascending mining method could be carried out in seams of Group Ding, Group Wu, Group Ji and Group Geng. The mining schemes of No4 Mine were also studied by hierarchy process, which achieved remarkable economic profit.This has provided experience and criterion for recovery of coal resources left in the goaf in Pingdingshan Mine area.