切顶卸压沿空留巷瓦斯和煤自燃防治技术探讨

Discussion on Control Technology of Gas and Coal Spontaneous Combustion in Gob-side Entry Retaining by Roof Cutting and Pressure Relief

本文结合官地煤矿12605工作面实际,探讨了切顶卸压沿空留巷工作面通风方式、采空区瓦斯抽采方法、封堵采空区降低漏风措施,探讨了采空区瓦斯治理与防灭火关系。通过采取多项有效的瓦斯治理和防灭火措施,保证了无煤柱回采工艺在官地煤矿应用的成功。

The paper probes into the ventilation mode at working face in gob-side entry retaining by roof cutting and pressure relief,the gas drainage method at goaf and measures of reducing air leakage by sealing the goaf,which can effectively control gas and coal spontaneous combustion and guarantee the successful application of non-pillar mining technology at 12605 working face of Guandi Colliery.