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Analysis on Distribution Characteristics and Components of Gas Emission in Fully Mechanized Slicing Face
Author(s): 
Pages: 17-20
Year: Issue:  12
Journal: Safety in Coal Mines

Abstract: 针对汝箕沟煤矿3229下分层综采工作面的通风条件,采用中央平面网格状的测点布置,对该工作面割煤前后瓦斯浓度二维分布进行了测定,得出了瓦斯分布等值线图,采用函数求极值点的方法,得出了工作面沿倾向瓦斯浓度最低点分布曲线,提出了基于瓦斯浓度最低点分布函数的瓦斯涌出分量比例计算方法,得出了该工作面割煤前后煤壁与采空区瓦斯涌出的比例,为制定采煤工作面的瓦斯治理措施及其效果检验提供了依据.
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