摘要
为解决隧道侧壁给交通流带来的压迫以及阻滞效应,造成隧道交通流偏离车道,运行速度下降或发生碰撞的问题,对隧道侧壁效应下的交通流运行特性与隧道断面优化间的关系进行了研究。首先分析了隧道侧壁效应对交通流的影响,其次结合流体力学知识对隧道交通流粘滞特性理论建模,最后分别分析了车道宽度、交通流密度与粘滞系数的关系,以及交通流速度、侧壁间距与粘滞力的关系,并以单向多车道隧道为例进行了交通流常规粘滞力标定。实验结果直观表达了交通流粘滞系数与车道宽度和交通流密度的关系以及交通流粘滞力与侧壁间距和交通流速度的关系,可作为单向三车道隧道断面优化的理论基础。
The pressure and blocking effect of the tunnel side wall on the traffic flow causes the tunnel traffic flow to deviate from the lane, reduce the operating speed or collide. The relationship between the traffic flow operating characteristics under the tunnel side wall effect and the tunnel section optimization needs to be studied. Therefor we firstly analyze the influence of tunnel sidewall effect on traffic flow. Secondly, combined with the knowledge of fluid mechanics, the theoretical modeling of the viscous characteristics of tunnel traffic flow is carried out. Finally, the relationship between lane width, traffic flow density and viscous coefficient, the relationship between traffic flow speed, sidewall spacing and viscous force are analyzed respectively. And the conventional viscous force calibration of traffic flow is carried out by taking a one-way multi-lane tunnel as an example. The relevant conclusions of the experiment will provide a theoretical guidance for tunnel speed management and section optimization.
作者
李振江
万利
吴涛
陶楚青
LI Zhenjiang;WAN Li;WU Tao;TAO Chuqing(Tunnel and Underground Engineering Design Branch,Shandong Provincial Communications Planning and Design Institute Group Company Limited,Jinan 250000,China)
出处
《吉林大学学报（信息科学版）》
CAS
2022年第6期937-945,共9页
Journal of Jilin University（Information Science Edition）
基金
山东省交通运输厅科技计划基金资助项目(KJ-2019-SDSJTT-04)。
关键词
侧壁效应
交通流粘滞特性
压迫强度
粘滞系数
粘滞力
sidewall effect
viscous characteristics of traffic flow
compression strength
viscosity coefficient
viscous force
