朱庄矿上隅角瓦斯抽采钻孔参数优化及效果分析  

Borehole parameter optimization and effect analysis of top corner gas drainage in Zhuzhuang coal mine

作　　者：胡宝林[1] 姚晋宝[1] 张影[1] 陈赓[1] 聂敏中 何云灼[2] 

机构地区：[1]安徽理工大学地球与环境学院,安徽省淮南市232001 [2]淮北矿业股份有限公司朱庄煤矿,安徽省淮北市235052

出　　处：《中国煤炭》2011年第12期89-93,共5页China Coal

基　　金：国家自然科学基金资助项目(40872103);国家"十一五"科技支撑计划项目(2007BAK28B02)资助

摘　　要：为防止工作面回风巷尤其是上隅角瓦斯超限,确保工作面的正常生产,同时可以充分利用瓦斯资源,本文利用顶板冒落的关键层理论,并在空区顶板采动裂隙、冒落数值模拟结果的基础上,对高位抽放钻孔的终孔位置、终孔平距、抽放钻孔的钻孔直径等参数进行了优化,朱庄煤矿Ⅲ4414工作面现场试验结果表明钻孔参数优化后,提高了抽采效率,保证回采工作面安全高效生产。In order to prevent gas from exceeding limit in the return airway, especially in top corner, the gas drainage was carried out to ensure the safe production in the working face and take full advantage of gas resource. The key stratum theory of roof caving in the vacant place was used to optimize borehole parameters, such as bottom location of high-level boreholes, horizontal distance of borehole bottoms, borehole diameters and so on, based on the simulation data of mining-induced roof fracture and roof caving. The application results showed that the gas drainage efficiency was enhanced after the optimization of borehole parameters, ensuring the safe and high efficient production in No.Ⅲ4414 working face.

关 键 词：钻孔参数 瓦斯抽采 钻孔 采动裂隙 

分 类 号：TD712.6[矿业工程—矿井通风与安全]