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列车通过隧道排出的废气中含有大量的有害气体,加之隧道内湿度大、光线暗,劳动卫生条件比隧道外差。通过多年实践,要解决有害气体的危害,改善隧道内劳动卫生条件,应根据具体情况,采取综合的防治措施。如对较长隧道,为使养护人员免受有害气体危害,可采用机械通风,配合防烟门或个人防护(戴防
Exhaust gases emitted by the train through the tunnel contain a large amount of harmful gases. In addition, the humidity in the tunnel is high and the light is dark. The sanitary condition of the train is worse than that of the tunnel. Through many years of practice, we must take comprehensive prevention and control measures according to the specific conditions in order to solve the harms of harmful gases and improve the sanitary conditions in the tunnels. In the case of longer tunnels, in order to protect maintenance personnel from harmful gases, mechanical ventilation may be used in conjunction with a smoke-free door or personal protection