东庞矿采煤工作面高位瓦斯抽采钻孔应用研究  

Study on the Application of High Level Gas Extraction Drilling in mining face of Dongpang Mine

作　　者：冯捷 Feng Jie(Safety and Environmental Protection Department,Jizhong Energy Group Corporation Ltd.,Xingtai 054000,China)

机构地区：[1]冀中能源集团有限责任公司,河北邢台054000

出　　处：《煤炭与化工》2021年第3期117-120,共4页Coal and Chemical Industry

摘　　要：为了减少煤矿瓦斯灾害、保证煤矿安全生产,对东庞矿21217工作面高位钻场15个钻孔抽采的瓦斯量进行数据分析,可以得出,在整体抽采过程中,距工作面32~124 m时抽采量绝大部分能达到瓦斯最大涌出量的30%以上,钻孔终孔法距设计在煤厚的4倍位置,平距设计在工作面长度约1/3位置时抽采效果最好。In order to reduce the mine gas disaster and ensure the safe production,from the data analysis of the gas volume extracted from 15 drill holes in the high drilling field of 21217 working face of Dongpang Mine,it can be concluded that the extraction volume can reach more than 30%of the maximum gas outflow at 32~124 m from the working face in the overall extraction process,the final hole distance of the drill hole was designed at 4 times of the coal thickness,and the flat distance was designed,the best extraction effect can be achieved at the position of about 1/3 of the working face length.

关 键 词：高位钻场 抽采技术 优化设计 法距 平距 

分 类 号：TD712[矿业工程—矿井通风与安全]