摘要
随着我国水下公路隧道最大通风长度的不断增加以及新能源汽车占比的增高,隧道运营通风方案设计面临新的难题。鉴于此,采用现场实测、资料调研、理论分析等多种研究手段,得出新能源汽车的主要排放物为烟尘颗粒物,且排放量与传统内燃机汽车排放量基本相当;基于温度、异味气体现场实测结果,建议特长水下公路隧道不以最小换气次数为通风控制标准;结合某特长水下公路隧道具体情况,给出优化后的需风量为604.71 m^(3)/s,较原设计降低55%;基于纵向式、半横向式两种通风方式,对6种通风方案进行比选分析,综合考虑土建设施需求、机电设施需求、排烟疏散优缺点、土建费用、机电费用及运营期年电费等多方面因素,建议特长水下公路隧道选用送风式半横向通风方案。
As the maximum ventilation length of subaqueous highway tunnels in China keeps increasing and the new energy vehicles take an increasingly high proportion,the operational ventilation scheme design for tunnels is faced with new challenges.Given this problem,several research methods including field measurement,data research and theoretical analysis have been used to conclude that the main emission of new energy vehicles is the particulate matter in fume,and the emission load is largely equal to that of the traditional internal combustion engine powered vehicles.With consideration of the field measurement of temperature and odorous gases,it is recommended that the control standard for super-long subaqueous highway tunnel should not be the air change rate.In view of the actual condi⁃tions of a super-long subaqueous highway tunnel,the optimized air demand is calculated as 604.71 m^(3)/s,which is 55%less than the original design.For the longitudinal and semi-transverse ventilation systems,6 ventilation schemes have been compared and analyzed.After comprehensive examination of the factors including the require⁃ments for civil works,the requirements for electromechanical equipment,the advantages and disadvantages of smoke extraction and evacuation,costs of civil works,costs of electromechanical equipment and annual electricity cost in the operation period,it is recommended to use the air supplied semi-transverse ventilation scheme for superlong subaqueous highway tunnels.
作者
王亮
张浩
WANG Liang;ZHANG Hao(Shanghai Tunnel Engineering&Rail Transit Design and Research Institute,Shanghai 200235)
出处
《现代隧道技术》
CSCD
北大核心
2024年第1期67-74,共8页
Modern Tunnelling Technology
关键词
特长水下公路隧道
新能源汽车
需风量
通风方案
Super-long subaqueous highway tunnel
New energy vehicle
Air demand
Ventilation scheme
