【作者】 于鹏； 闫治国； 郭清超； 王安民；

【Author】 Yu Peng~(1,2,3)Yan Zhi-guo~(1,2,3)Guo Qing-chao~(1,2,3)Wang An-min~(1,2,3) (1.State Key Laboratory for Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092, China;2.Key laboratory of Geotechnical and Underground Engineering of the Ministry of Education,Tongji University Shanghai 200092;3.Department of Geotechnical Engineering,Tongji University,Shanghai)

【机构】 土木工程防灾国家重点实验室； 岩土及地下工程教育部重点实验室； 同济大学地下建筑与工程系；

【摘要】 对我国隧道通风设计规范JTJ026.1-1999和PIARC2012标准(世界道路协会)两套不同的隧道通风设计规范中的需风量计算方法进行详细深入的论述和比较,从需风量计算方法、汽车尾气排放量和污染物设计浓度等方面对两套规范进行了深入的对比和论述,并结合武汉市东湖隧道工程实例,分别采用两种规范计算东湖隧道的正常运营通风需风量。计算结果表明:我国隧道通风设计规范与PIARC2012存在较大的差异,氮氧化物和非排放性颗粒取代CO逐渐成为隧道运营通风的控制性因素,为了适应今后我国交通量及机动车排放特点的发展趋势,有必要在机动车排放量、污染物设计浓度限值等方面做出一定的改进,以期更合理经济的进行需风量计算。更多还原

【Abstract】 This study is conducted to make detailed comparison and discussion of different methods for calculating required tunnel ventilation air volume based on domestic specifications JT J026.1-1999 and PIARC2012(World Road Association).From three aspects(method for calculating required air volume in tunnel ventilation,emission of vehicles and admissible in-tunnel concentrations of toxic gases) this paper,has made a comparative analysis between domestic specification JT J026.1-1999 and PIARC2012.Taking Donghu tunnel in WuHan for instance,the research calculates the required airflow volume in Donghu tunnel based on two different sets mentioned above.The calculation results show that there is a huge gap between the two sets for tunnel ventilation.Nitrogen Oxides and non-exhaust particulate matter emissions are becoming dominant factors instead of CO in calculating required air volume for normal operation of tunnel.In order to keep pace with future traffic volume and vehicle emission standard in China,domesti c specifications should be improved in terms of vehicle emissions and threshol d value of toxic gases,so as to make calculations for requi red air volume in-tunnel more reasonable and economical.更多还原