单一厚煤层高强度开采瓦斯治理技术  

Gas Control Technology of High Intensity Mining in Single Thick Coal Seam

作　　者：白雁楠 肖旭诚 Bai Yannan;Xiao Xucheng(Shanxi Lu'an Group Yuwu Coal Industry Co.,Ltd.,Shanxi Changzhi 046000;School of Safety Engineering,China University of Mining and Technology,Jiangsu Xuzhou 221116)

机构地区：[1]山西潞安集团余吾煤业有限责任公司,山西长治046000 [2]中国矿业大学安全工程学院,江苏徐州221116

出　　处：《山东煤炭科技》2022年第11期111-114,共4页Shandong Coal Science and Technology

摘　　要：针对单一厚煤层高强度开采工作面瓦斯治理还没有成套的技术措施,通过二维相似模拟试验和数值模拟研究采动过程中的周期来压规律、“三带”的分布规律、采煤工作面的应力分布规律、裂隙分布特征,提出了利用顺层钻孔、高抽巷进行瓦斯抽采的综合治理技术措施。现场试验表明,通过顺层钻孔瓦斯抽采,抽采率达到了47.91%,高抽巷平均瓦斯抽采量为13 m^(3)/min,是绝对瓦斯涌出量的40%左右,使工作面上隅角的瓦斯未出现超限现象。In view of the fact that there is no complete set of technical measures for gas control in the high intensity mining face of a single thick coal seam,the periodic pressure law,the distribution law of"three zones",the stress distribution law and the crack distribution characteristics in the mining process are studied by two-dimensional similar simulation experiment and numerical simulation.The comprehensive control technical measures of gas drainage by using bedding drilling and high drainage roadway are put forward.The field test shows that through the gas extraction by drilling along the layer,the extraction rate reaches 47.91%,and the average gas extraction volume of the high drainage roadway is 13 m^(3)/min,which is about 40%of the absolute gas emission,so that the gas in the upper corner of the working face does not exceed the limit.

关 键 词：单一厚煤层 裂隙分布 相似模拟 瓦斯抽采 

分 类 号：TD712.6[矿业工程—矿井通风与安全]