俯采工作面上隅角瓦斯治理技术优化研究  

Study on Optimization of Gas Control Technology in Upper Corner of Working Face

作　　者：陈秀田 CHEN Xiu-tian(Huajin Coking Co.,Ltd.,Lvliang 033000,China)

机构地区：[1]华晋焦煤有限责任公司,山西吕梁033000

出　　处：《煤炭技术》2018年第11期203-206,共4页Coal Technology

摘　　要：针对上隅角瓦斯超限现象,分析了典型通风方式上隅角瓦斯超限原因及常用治理技术;进而分析了5302综采工作面上隅角瓦斯治理技术中上隅角压埋管技术的局限性,提出了取消上隅角压埋管,缩小采空区组钻孔间距的优化方案;并对各方案进行数值模拟,确定了组钻孔间距为6 m时为最合理的组钻孔间距,用于现场实践,取得了预期效果。In view of the phenomenon of the upper corner gas exceeding the limit, the reasons for the overlimit of gas in the upper comer in the typical ventilation mode and the common treatment technology are analyzed.Then, the limitation of the upper comer comer pipe technology in the upper corner gas treatment technology of the 5302 fully mechanized coal face is analyzed, and an optimization plan is put forward to cancel the upper corner burying pipe and reduce the spacing between the holes in the mined out area.And the numerical simulation of each scheme is carried out, and the most reasonable interval between drilling holes is determined when the spacing of the drill hole is 6 m, which is used in field practice, and the expected effect is obtained.

关 键 词：上隅角 采空区瓦斯抽放 数值模拟 现场验证 

分 类 号：TD712[矿业工程—矿井通风与安全]