摘要
上良煤业工作面瓦斯涌出量大,已成为制约生产及安全的主要因素。测定了煤层瓦斯含量,根据分源预测法计算工作面瓦斯涌出量,分析工作面瓦斯涌出来源及构成;针对邻近层瓦斯涌出量占3303工作面瓦斯涌出量比例较大的特点,设计钻孔参数及抽采工艺,采用高位钻孔抽采技术抽采邻近层瓦斯,为工作面瓦斯治理提供技术保证。
Gas emission quantity of working face in Shangliang Coal Industry is large,which has become the main restricting factor of the production and safety. Gas content of coal seam was determined, gas emission quantity was calculated according to the different source prediction method, the sources of gas emission were also analysed. Aiming at the large proportion of gas emission of adjacent layers in gas emission of 3303 working face,the parameter of boreholes and gas extraction technology were designed,high-level borehole gas ex- traction technology was used to drain gas in adjacent layers,which provides the technical guarantee for gas control.
出处
《中州煤炭》
2014年第2期52-54,共3页
Zhongzhou Coal
关键词
高位钻孔
工作面
瓦斯抽采系统
瓦斯治理
high-level borehole
working face
gas extraction system
gas control
