低渗透煤层孔隙结构及瓦斯涌出规律分析

Analysis of Pore Structure and Gas Emission Regular Pattern in Low Permeability Coal Seam

本文以王庄煤矿9105工作面为例,采用煤层取样和钻孔的方式对工作面煤层孔隙结构、煤层瓦斯含量及分布、瓦斯涌出量等进行分析,预测了9105工作面相对瓦斯涌出量为9.43m^3/t,绝对瓦斯涌出量为37.50m^3/min,对后续工作面设计及瓦斯防治提供了基础数据,为低渗透煤层开采的瓦斯防治工作提供了借鉴。

Taking the 9105 working face of Wangzhuang Coal Mine as an example,this paper analyzes the coal seam pore structure,gas content and distribution,gas emission in the working face by means of coal seam sampling and drilling,and predicts that the relative gas emission in the 9105 working face is 9.43m^3/t,and the absolute gas emission is 37.50m^3/min.It provides basic data for the design of the follow-up working face and gas prevention and control,providing low permeability coal The gas prevention and control work of seam mining provides a reference.