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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。
The current ventilation system and its advantages and disadvantages in domestic high-gas face are analyzed. It is pointed out that the uncontrollable and adjustment of the gas concentration in the tailrace or special gas lane is the main problem in the ventilation system of high-gas face. Based on this, it is proposed that U + U ventilation system is an ideal ventilation system. At the same time, in order to make good use of this ventilation system, the paper puts forward the necessary measures such as adjusting the layout of the working face, strengthening the roadway support and increasing the pillar width of roadway.