穿层钻孔结合顶板走向钻孔瓦斯抽放方法的研究

Study on Wear Layer with Drilling Holes Along Roof Strike Gas Drainage Method

矿井开采由浅层向深层开采,随着煤层开采深度的加深,煤层瓦斯涌出量随之加大,一般机械通风无法解决工作面瓦斯超限问题。通过下层回风巷穿层钻孔结合轨顺钻场顶板走向钻孔抽放瓦斯来解决14-3煤层工作面及回风巷瓦斯超限问题,保证井下工作面人员的安全及回采工作的顺利进行。

The mine from shallow to deep mining,along with the mining depth increasing,the amount of gas emission,general mechanical ventilation can not solve the problem of gas overrun in working face.Through the lower return air roadway crossing hole combining rail drilling holes along roof strike gas drainage to solve the 14-3seams and return air roadway gas overrun problem,ensure the personnel underground working face safety and working smoothly.