【摘要】 分析了目前国内高瓦斯工作面现有的通风系统及其优缺点,指出工作面尾巷或专用瓦斯巷中的瓦斯浓度无法控制和调节是目前高瓦斯工作面通风系统所存在的主要问题,在此基础上提出U+u型通风系统是比较理想的通风系统。同时为了很好地使用这种通风系统,提出了需要采取调整工作面布置方式,加强巷道支护,加大护巷煤柱宽度等配套措施。更多还原

【Abstract】 The paper analyzed the existin ventilation system used in high gassy working face and its advantages and disadvantages,and pointed out that the major problem present in existing ventilation system of high gassy working face is that the gas concentration in the tail gate or special gas drainage roadway is unable to be controlled and regulated.To this end,the paper put forward that U-type ventilation system is an ideal one and necessary measures should be taken such as the layout adjustment of working face,the strengthening of roadway support and the widening of chain pillar in order for the better application of U-type ventilation system.更多还原