摘要
针对寺河矿二号井9号煤层开采过程中工作面上隅角瓦斯超限问题,提出了邻近层瓦斯抽采技术,介绍了邻近层瓦斯涌出特征,阐述了钻孔布置方案及瓦斯抽采系统。现场应用结果表明:邻近层瓦斯抽放系统,降低了工作面上隅角和回风巷瓦斯浓度,抽放效果良好,有效解决了上隅角瓦斯超限问题,取得了较大效益,保障了矿井的安全生产,具有一定借鉴意义。
To solve the gas over-limit of upper corner in the mining process of seam 9, No.2 well in Sihe mine, gas drainage technology from adjacent seams is proposed. The paper introduces the features of gas emission from adjacent seams and presents boreholes layout plan and gas drainage system. The results of field applioation show that the gas drainage system from the adjacent seams decreases the gas content of upper corner and of ventilation roadways and achieves ideal drainage effect. The system solves the gas over-limitproblems effectively and has achieved benefits.
出处
《山西煤炭》
2013年第2期54-55,66,共3页
Shanxi Coal
关键词
邻近层
瓦斯抽放
上隅角
adjacent seam
gas drainage
upper corner
