鹤煤六矿2145底抽巷水力增透防突技术实践  

Technical Practice on Outburst Prevention of Hydraulic Penetration Increasing at 2145 Bottom Suction Roadway,No.6 Colliery,Hemei Group Co.

作　　者：秦龙头[1] 张志林 张敬书 王云广[1] 

机构地区：[1]河南理工大学,河南焦作454000 [2]鹤壁煤电股份有限公司第六煤矿,河南鹤壁458000

出　　处：《江西煤炭科技》2013年第2期38-40,共3页Jiangxi Coal Science & Technology

摘　　要：为提高煤层瓦斯预抽率和煤巷掘进速度,鹤煤六矿在2145底抽巷进行了穿层钻孔水力增透技术试验。试验结果显示,穿层钻孔水流的打击作用使原煤体结构发生变化,在煤体内快速形成槽孔,使得钻孔周围煤体透气性明显增加,大量瓦斯得以卸压快速解吸,并进一步激发煤炮诱导瓦斯突出和释放煤体内的瓦斯压力,瓦斯抽放半径大幅变大,抽放效果显著提高。In order to advance seam gas pre--drainage rate and roadway excavating velocity, technology of borehole hydraulic penetration increasing was tested at 2145 bottom suction roadway, No. 6 Colliery, Hemei Group Co.. The test showed that the impact of borehole flow changed the original coal structure, quickly forming trench resulted in increasing permeability of coal structure, quantity gas to be released and desorbed, gas pressure inside coal structure to be released, radius of gas extraction to be enlarged and the effect of extraction to be improved significantly.

关 键 词：水力增透 卸压 防突 抽放效果 分析 

分 类 号：TD713.3[矿业工程—矿井通风与安全]