汾西中兴煤业1207保护层工作面初采初放瓦斯治理研究  

Study on the management of initial mining and pre-release gas at 1207 protected seam working face in Fenxi Zhongxing Coal Industry

作　　者：郑杰 张洋 刘子文 Zheng Jie;Zhang Yang;Liu Ziwen(Shanxi Fenxi Zhongxing Coal Industry Corporation Ltd.,Lvliang 033000,China;Shanxi Fenxi Xiangyuan Coal Industry Corporation Ltd.,Lvliang 033000,China;State Key Laboratory of Coal Mine Safety Technology,Lvliang 033000,China;China Coal Science and Engineering Group Shenyang Research Institute Corporation Ltd.,Fushun 113122,China)

机构地区：[1]山西汾西中兴煤业有限责任公司,山西吕梁033000 [2]山西汾西香源煤业有限责任公司,山西吕梁033000 [3]煤矿安全技术国家重点实验室,辽宁抚顺113122 [4]中煤科工集团沈阳研究院有限公司,辽宁抚顺113122

出　　处：《煤炭与化工》2021年第8期110-113,116,共5页Coal and Chemical Industry

基　　金：国家科技重大专项项目(2016ZX05067-005-002)。

摘　　要：汾西中兴煤业保护层采煤工作面在初采初落时瓦斯涌出量大,采用U型的通风方式解决工作面瓦斯超限问题,确保工作面正常生产。随着工作面的向前推进,老顶的悬顶面积越来越大,达到一定跨度时,老顶会突然冒落,压出大量瓦斯,容易引起瓦斯超限和瓦斯事故。本文介绍了汾西中兴煤业1207保护层工作面采用本煤层顺层钻孔、上隅角埋管抽放、高抽巷和顶板走向高位裂隙带定向长钻孔抽采技术,圆满地解决了初放期间的顶板管理和瓦斯问题,取得了较好的安全效益。Fenxi Zhongxing Coal Industry coal mining face with largest gas gush during the initial mining and initial fall,and uses the U-shaped ventilation was adopted to solve the problem of gas overrun at the working face to ensure normal production at the working face.As the working face advancing,the overhanging roof area of the old roof became larger and larger,and when it reached a certain span,the old roof will suddenly bubble down and press out a large amount of gas,which will easily cause gas overrun and gas accidents.Fenxi Zhongxing Coal 1207 protective seam working face adopted this coal seam down-seam drilling,upper corner buried pipe extraction,high extraction roadway and roof towards high fissure zone directional long drilling extraction technology,which successfully solved the roof management and gas problems during the initial release and achieved better safety benefits.

关 键 词：煤矿安全 保护层工作面 初采初放 瓦斯抽采 

分 类 号：TD712[矿业工程—矿井通风与安全]