小常煤矿瓦斯地质规律研究

Study on Gas Geological Law of Xiaochang Coal Mine

针对小常煤矿煤层地质赋存及瓦斯分布的特点,运用sufer软件对3#煤层的瓦斯地质规律进行了分析研究,通过煤层埋深和瓦斯含量等值线图得出3#煤层瓦斯呈西高东低趋势,井田西北部为3#煤层埋深最深区域,最大埋深可达490m,该区域最高瓦斯含量为7.68m^3/t,当日产量为5422.9t/d时,该区域回采工作面最大瓦斯涌出量达到22m^3/min。瓦斯地质规律的研究可有效的指导矿井生产实践,通过区域分类的系统治理进而保证矿井的安全生产。

According to the characteristics of coal seam geological occurrence and gas distribution in Xiaochang Coal Mine, the gas geological law of No.3 coal seam is analyzed and studied by sufer software. Through the isoline map of coal seam burial depth and gas content, it is concluded that the gas of No.3 coal seam is high in the west and low in the east. In the northwest of the minefield, the depth of coal seam is the deepest, and the maximum burial depth can reach 490 m. The maximum gas content in this area is 7.68 m^3/t. When the daily output is 5422.9 t/d, the maximum gas emission from the mining face in this area reaches 22 m^3/min. The study of gas geological law can effectively guide the mine production practice, and ensure the safe production of the mine through the systematic management of regional classification.