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为了解电力牵引的双线铁路运营隧道空气污染状况,选择军都山隧道进行现场测试。在现运行图确定的客、货运列车运行条件下对臭氧、氮氧化物、一氧化碳、二氧化硫、总碳氢、醛类、氧气含量及粉尘测试。结果表明,电力牵引的运营隧道内有害气体大大低于国家卫生标准,但隧道内粉尘浓度较高,夏季0.4~2.1mg/m3,冬季1.2~10.7mg/m3;氧含量较低。为此根据隧道运营状况提出了相应的综合治理措施。
In order to understand the air pollution status of the two-lane railroad operating tunnel under electric traction, the military tunnel was selected for on-site testing. Ozone, nitrogen oxides, carbon monoxide, sulfur dioxide, total hydrocarbons, aldehydes, oxygen content and dust testing under current passenger and freight train operating conditions as determined in the current operating plan. The results showed that the harmful gases in the operation tunnel under electric traction were much lower than the national sanitary standards, but the dust concentration in the tunnel was high, 0.4 ~ 2.1mg / m3 in summer and 1.2 ~ 10.7mg / m3 in winter. The oxygen content Lower. According to the tunnel operating conditions for this reason put forward the corresponding comprehensive management measures.