摘要
沙曲矿近距离高瓦斯煤层群条件下,14205综采面上隅角及回风流中瓦斯浓度超限现象频繁发生,严重威胁着采煤工作面的安全生产。为了掌握综采面瓦斯涌出状况及其变化规律,确保工作面安全生产,项目组对近距离高瓦斯煤层群综采面瓦斯涌出来源及构成进行了分析,并采用现场实测的方法,寻找瓦斯富集地点。分析研究得出综采面瓦斯涌出分布规律,从而对综采面瓦斯治理具有重要指导意义。
Under high gas emission and closed distance coal seams in Shaqu Mine, the gas concentration overrunning often appears in the upper corner and the return--air current of fully-mechanized face 14205, which seriously threaten the production safety of coalface. In order to grasp the situation of gas emission and its changing rule, ensuring the production safety of this fully-mechanized face, the paper analyses the gas emission sources and its constitution in fully mechanized face of high gassy coal seams. By theory analy- zing and measuring in scene, gas emission distribution laws and gas enriched locations of the fully--mecha- nized face are given, which is used to provided an important guide to comprehensive gas control of the fullymechanized face.
出处
《中国矿业》
北大核心
2008年第9期93-95,共3页
China Mining Magazine
关键词
高瓦斯
近距离煤层群
综采面
瓦斯涌出
high gas
contiguous coal seam group
fully-mechanized face
gas emission
