深井特厚煤层短壁工作面快速回采条件下瓦斯防治技术  

Gas Control Technology for Fast Winning of Short-wall Coal Face of Extra-think Seam in Deep Mine

作　　者：唐辉 TANG Hui(China Coal Technology and Engineering Group Shenyang Research Institute, Shenyang 110016,China;State Key Laboratory of Coal Mine Safety, Fushun 113122,China)

机构地区：[1]煤科集团沈阳研究院有限公司,辽宁沈阳110016 [2]煤矿安全技术国家重点实验室,辽宁抚顺113122

出　　处：《矿业安全与环保》2017年第2期79-83,共5页Mining Safety & Environmental Protection

摘　　要：针对深井特厚煤层短壁工作面快速回采条件下瓦斯治理的难题,以唐口煤矿6305综放工作面为工程实例,利用分源预测法对6305工作面掘进及回采期间的瓦斯涌出量进行预测,分析了瓦斯涌出量的构成。基于瓦斯涌出特征,提出以高位钻孔为主,隅角埋管、尾巷、水平长钻孔进行时空配合的深井特厚煤层综放短壁工作面瓦斯综合防治技术体系,考察了瓦斯综合治理效果并总结出不同抽采方式的瓦斯抽采规律。实践表明,瓦斯综合治理技术保障了综放工作面的安全生产。To aim at the problem of gas prevention and control in the fast extraction of short-wall face of extra-thick seam in the deep mine,prediction was carried out on the gas emission in the excavation and mining process of6305fully mechanized caving face in Tangkou Mine by taking this face as the engineering example and using the different-source prediction method,and the analysis was made on the composition of the gas emission.Based on the gas emission characteristics,a comprehensive technology system of gas drainage by high-level boreholes,burying pipes at the corner angle and gas drainage by the tailgate and horizontal boreholes was put forward for the gas prevention and control in the fully mechanized short-wall caving face of the extra-thick seam.The effect of the comprehensive gas prevention and control was investigated,and the gas drainage pattern of different methods was summarized.The practice showed that the comprehensive gas prevention and control technology could ensure the safe production of the fully mechanized top-coal caving face.

关 键 词：深部矿井 短壁工作面 快速回采 水平长钻孔 瓦斯治理 

分 类 号：TD712[矿业工程—矿井通风与安全]