关于永佛寺煤矿8号煤回采工作面瓦斯抽采方案的研究

Study on Gas Extraction Scheme Adopted by the Coalface of 8th Seam in Yongfosi Coalmine

运用关于瓦斯抽采的各种研究理论,结合永佛寺煤矿瓦斯地质情况,对一水平下部8号煤层开采时的瓦斯及煤与瓦斯突出造成的影响进行了分析,并提出了治理方案,即运用卸压抽采和未卸压抽采相结合的方法,通过计算确定了抽采参数,预计可以达到良好的抽采效果。

By using various research theories of the gas extraction,and connecting with the gas geological condition of Yongfosi Coalmine,this paper makes analysis on the influences caused by the gas and the coal/gas outburst when a horizontal underpart of 8th Seam is mined,and puts forward a treatment scheme;Combining gas extraction with pressure relief and gas extraction without pressure relief,determines the extraction parameters through calculation,and estimates that the excellent extraction results can be achieved.