辛置煤矿109工作面上隅角瓦斯治理

Gas Control of Upper Corner in Xinzhi Coal Mine 109 Working Face

以辛置煤矿3下109工作面为研究对象,确定了影响该工作面上隅角瓦斯积聚的因素,并通过数值模拟分析了未开采条件下上隅角瓦斯积聚区域,提出采用采空区埋管瓦斯抽采与高位钻孔瓦斯抽采的方式降低工作面上隅角瓦斯浓度,并对抽采效果进行了检验。结果表明,抽采效果良好,保证了矿井安全生产。

Taking the 3下109 working face of Xinzhi Coal Mine as the research object,analyzes the factors of gas accumulation in the upper corner of the working face,and analyzes the area of gas accumulation in the upper corner under the condition of non-mining by numerical simulation.The paper proposes to reduce the gas concentration in the upper corner of the working face by adopting the method of gas drainage with buried pipe in goaf and cross-measure borehole with up-angle,and the effect of drainage is verified.The results show that the gas concentration in the upper corner of the working face has achieved good results and created a good environment for mine safety production.