某矿13105工作面交叉钻孔预抽瓦斯的技术实践  

Technology Practice of Gas Pre-drainage with Cross Borehole in 13105 Working Face

作　　者：张文宇[1] 郑建国[1] 赵怀璞[1] 游国强[1] 金潮[1] 

机构地区：[1]中国辐射防护研究院,太原030006

出　　处：《煤炭技术》2016年第10期199-201,共3页Coal Technology

摘　　要：为提高高瓦斯低透气性煤层本煤层钻孔预抽瓦斯效果,在某矿13105工作面进行了交叉钻孔预抽煤层瓦斯技术的试验应用,量化对比分析了平行钻孔和量化钻孔2种布孔方式下的瓦斯预抽量和预抽率。结果表明:与平行钻孔相比,交叉钻孔可将本煤层瓦斯预抽量提高0.5倍,预抽率提高10%左右,有效降低了瓦斯事故发生的概率,保障了工作面的安全回采。In order to improve the effect of gas pre-drainage in the coal seam with high gas and low permeability, the experimental application of gas pre-drainage technology with cross boreholes was carried out in No 13105 mining face of a certain coal mine, the gas pre-drainage capacity and rate under two-kind methods of cross boreholes and parallel were comparative analyzed quantitatively. The results show that,compared with parallel drilling, cross drilling can increased the gas pre-drainage capacity of coal seam by 0.5 times and increase the pre-drainage rate about 10%, the probability of the occurrence of gas accidents was reduced effectively, guaranteeing the safe mining of working face.

关 键 词：交叉钻孔 高瓦斯低透煤层 预抽量 预抽率 

分 类 号：TD712[矿业工程—矿井通风与安全]