中国煤炭
中國煤炭
중국매탄
CHINA COAL
2014年
9期
108-110
,共3页
大采高工作面%回风隅角%高抽巷层位%高位钻孔%瓦斯抽放量
大採高工作麵%迴風隅角%高抽巷層位%高位鑽孔%瓦斯抽放量
대채고공작면%회풍우각%고추항층위%고위찬공%와사추방량
working face with large mining height%air return corner%horizon of high-level drainage roadway%highly-located borehole%gas drainage volume
通过分析研究，在亭南煤矿205工作面初采阶段采取调整末段高抽巷的层位、增加高位钻孔贯通高抽巷、加大卸压区煤层瓦斯抽放量及加大隅角抽放能力等瓦斯治理措施，有效地解决了205工作面初采阶段回风隅角瓦斯浓度超限问题，为大采高工作面初采阶段瓦斯治理积累了实践经验。
通過分析研究，在亭南煤礦205工作麵初採階段採取調整末段高抽巷的層位、增加高位鑽孔貫通高抽巷、加大卸壓區煤層瓦斯抽放量及加大隅角抽放能力等瓦斯治理措施，有效地解決瞭205工作麵初採階段迴風隅角瓦斯濃度超限問題，為大採高工作麵初採階段瓦斯治理積纍瞭實踐經驗。
통과분석연구，재정남매광205공작면초채계단채취조정말단고추항적층위、증가고위찬공관통고추항、가대사압구매층와사추방량급가대우각추방능력등와사치리조시，유효지해결료205공작면초채계단회풍우각와사농도초한문제，위대채고공작면초채계단와사치리적루료실천경험。
The problem of gas overrun in the air return corner at No.205 working face during initial extraction in Tingnan Coal Mine was solved by following measures,including the adj ust-ment of horizon of high-level drainage roadway end,the increase of numbers of highly-located boreholes connecting high-level drainage roadway,and enhancing gas drainage volume in pres-sure-released zone and gas drainage capability in the corners,providing some practical experience for gas control during the initial extraction at the working face with large mining height.
