交通流对水下隧道通风节能的影响研究  

Study on Impact of Traffic Flow on Energy Saving of Underwater Tunnel Ventilation

作　　者：赵阳[1] 丛利鹏 李雪[2] 郑晅[2] Zhao Yang;Cong Lipeng;Li Xue;Zheng Xuan(Jiangsu Transportation Engineering Construction Bureau, Nanjing 210004, China;School of Electronic Control, Chang'an University, Xi'an 710064, China)

机构地区：[1]江苏省交通工程建设局,江苏南京210004 [2]长安大学电子与控制工程学院,陕西西安710064

出　　处：《环境科学与管理》2020年第3期57-62,共6页Environmental Science and Management

基　　金：新疆维吾尔自治区重大科技专项(2018A03003-6);陕西省重点研发计划项目(2018GY-137);西安市科技计划项目(201805045YD23CG29)。

摘　　要：公路隧道中,车辆移动产生的交通风对隧道运营期通风节能有重要意义。为了分析不同交通状况对隧道通风的影响,文章依托太湖水下隧道,研究了不同交通流量、不同车型占比下产生的交通风对太湖隧道运营通风的补充效果。结果表明,小客车所占比例和交通流平均车速对隧道内的交通风有显著影响。交通流量的增加无法弥补因平均行车速度下降所导致的平均交通风速降低。当隧道内车辆行驶速度达到40 km/h以上时,产生的平均交通风速保持在1.1 m/s以上,可对隧道机械通风提供相当于需风量13%的风力补偿。In road tunnels,the traffic wind generated by vehicle movement is of great significance for ventilation and energy saving during the tunnel operation period.This paper takes Taihu underwater tunnel as example.The supplementary effect of traffic wind generated by different traffic flow and different vehicle types on the operation ventilation of Taihu Tunnel was studied.The results show that the proportion of passenger cars and the average speed of the traffic flow have a significant effect on the traffic wind in the tunnel.The increase in traffic flow cannot make up for the decrease in average traffic wind speed caused by the decrease in average speed.When the driving speed in the tunnel reaches above 40 km/h,the average traffic wind speed generated remains above 1.1 m/s,which can provide the tunnel mechanical ventilation with wind compensation equal to 13%of the tunnel wind demand.

关 键 词：运营节能 水下隧道 交通风 交通流 数值模拟 

分 类 号：X22[环境科学与工程—环境科学]