东曲矿28202工作面高抽巷抽放瓦斯技术试验研究

摘要

The absolute gas emission amount gradually increases at working face of Dongqu Coal Mine of Xishan Coal Electricity Group Co.,Ltd.,and the gas concentration is usually up to critical alarm value.But the current ways of ventilation and borehole gas drainage cannot solve gas overrun.Hence,the high gas working face at level of + 860 m in Dongqu Coal Mine was taken as a research object,and the gas drainage was carried out in high-level drainage roadway at No.28202 working face.The gas drainage results and the economic benefit were analyzed,provi-ding a basis for the determination of rational location of high-level drainage roadway.%针对西山煤电集团东曲矿工作面绝对瓦斯涌出量不断增大、瓦斯经常达到临界报警范围，而现有的通风方法和钻孔抽放方式已不能有效解决瓦斯超限问题，以东曲矿＋860 m水平高瓦斯工作面为研究对象，采用高抽巷抽放瓦斯技术在28202工作面进行了现场试验研究，对其抽放效果和经济效益进行了分析，为最终确定合理的高抽巷位置提供了依据。