China Coal Xinji Energy Co., Ltd., Liuzhuang Coal Mine

为了解决刘庄煤矿瓦斯抽采钻孔负压分配不合理、煤层瓦斯抽采浓度衰减速度快等问题,进一步提高煤层瓦斯抽采效果,以支持向量机回归机技术为基础,构建了煤层瓦斯抽采钻孔调控模型,提出了煤层瓦斯抽采钻孔调控判识及策略,研发了煤层瓦斯抽采钻孔智能调控系统,在刘庄煤矿151108工作面进行了现场工程应用。结果表明:煤层瓦斯抽采钻孔调控模型可以有效确定瓦斯钻孔最佳抽采负压;采用煤层瓦斯抽采钻孔智能调控技术的组孔调控时,煤层瓦斯抽采浓度提升15%以上,而采用单孔调控时,抽采浓度可提升30%以上,可以有效延长钻孔瓦斯有效抽采期,提升煤层瓦斯抽采能力。

In order to solve the problems of unreasonable negative pressure distribution in gas drainage drilling holes, fast attenuation speed of coal seam gas drainage concentration and so on in Liuzhuang Coal Mine, and further improve the effect of coal seam gas drainage, a coal seam gas drainage drilling holes regulation and control model is constructed based on support vector machine regression machine technology. The judgement and identification and strategies of coal seam gas drainage drilling holes regulation and control are proposed, and an intelligent regulation and control system for coal seam gas drainage drilling holes is developed, the on-site engineering application is carried out in the 151108 working face of Liuzhuang Coal Mine. The results show that the coal seam gas drainage drilling holes regulation and control model can effectively determine the optimal drainage negative pressure for gas drilling holes; when using the intelligent regulation and control technology of coal seam gas drainage drilling holes for group holes regulation and control, the concentration of coal seam gas drainage can be increased by more than 15%, while when using single hole regulation and control, the concentration can be increased by more than 30%, which can effectively extend the effective drainage period of drilling holes gas and improve the coal seam gas drainage capacity.