瓦斯抽放技术网络化研究

Study on the gas drainage technique of network

在本煤层瓦斯抽放技术中,交叉钻孔是一种新型的布孔方式,借鉴和利用通风网络已有的理论和计算方法把交叉钻孔抽象为孔网——即网络化,从网络的角度来研究孔网钻孔抽放问题,建立了交叉钻孔的孔网瓦斯抽放理论。本文结合平煤集团矿区的具体情况,对平行钻孔和孔网钻孔分三种情况利用“孔网瓦斯抽放系统软件”进行了模拟解算,这三种情况是:正常情况、塌孔堵死情况、闭孔的情况。

Among the technologies of gas drainage, cross-brothel is a new-style hole-layout fashion.In the paper cross-brothels are abstracted to brothel-net, the existing theories and calculating methods on ventilation network are borrowed and used to study drainage problem of brothels in brothel-net, namely brothel-net gas drainage theory. Combined with concrete conditions of Pingdingshan Coal Group, simulation calculation is carried out in the paper. In the paper, combined with specific state of Pingdingshan mine area, parallel boreholes andborehole-net boreholes are divided into three states, numeric simulation calculation is carried out by using 揵orehole-net gas drainage system software? and the three states are normal state, blocked collapsed borehole state and closed borehole state.