Influence of traffic on the temperature field of tunnel in cold region: A case study on the world's longest highway spiral tunnel

被引：16

作者：

Jiang, Yifan ^{[1
,2
]}

Yu, Jianyou ^{[3
]}

Zhou, Ping ^{[4
]}

Zhou, Feicong ^{[1
,2
]}

Lin, Jiayong ^{[1
,2
]}

Li, Jinyi ^{[1
,2
]}

Lin, Ming ^{[1
,2
]}

Lei, Feiya ^{[5
]}

Wang, Zhijie ^{[1
,2
]}

机构：

[1] Southwest Jiaotong Univ, Minist Educ, Key Lab Transportat Tunnel Engn, Chengdu 610031, Sichuan, Peoples R China

[2] Southwest Jiaotong Univ, Sch Civil Engn, Chengdu 610031, Sichuan, Peoples R China

[3] Project Off Yanchong Highway, Zhang Jiakou 075000, Hebei, Peoples R China

[4] Southwest Jiaotong Univ, Fac Geosci & Environm Engn, Chengdu 611756, Sichuan, Peoples R China

[5] Sichuan Univ, West China Hosp, Infrastructure Operat Dept, Chengdu 610000, Sichuan, Peoples R China

来源：

UNDERGROUND SPACE | 2023年 / 8卷

基金：

中国国家自然科学基金;

关键词：

Highway spiral tunnel; Vehicle traffic; Cold Region; Temperature field; Length of insulation layer; ANALYTICAL ELASTOPLASTIC SOLUTION; FROST HEAVE; FORCE;

D O I：

10.1016/j.undsp.2022.03.002

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The impact of the piston wind caused by vehicle traffic on the temperature field distribution of the tunnel cannot be ignored, especially in spiral tunnels, where the temperature field distribution is more complicated than that in straight tunnels. Based on the world's longest highway spiral tunnel, this study explores the influence of traffic on the temperature fields of spiral and straight tunnels, and proposes a new design method for laying length of insulation layer. The results show that traffic has a significant effect on the temperature field distribution in the tunnel. The influence degree of different traffic elements decreases in the following order: average vehicle speed > daily traffic > morning rush hour > evening rush hour. The temperature field distribution of spiral tunnels is asymmetry on the left and right compared with straight tunnels, while the influence degree of traffic on the outside of spiral tunnels is similar to that of straight tunnels. Due to the difference of wind direction and traffic direction at different tunnel openings, an asymmetric insulation layer laying method is proposed. It is suggested that the lengths of the insulation layers of the Jinjiazhuang Tunnel should be 1200 m for the right tunnel inlet, 700 m for the right tunnel outlet, 700 m for the left tunnel inlet, and 1400 m for the left tunnel outlet.

引用

页码：196 / 209

页数：14

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