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

Yifan Jiang; Jianyou Yu; Ping Zhou; Feicong Zhou; Jiayong Lin; Jinyi Li; Ming Lin; Feiya Lei; Zhijie Wang

Underground Space (Feb 2023)

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

Yifan Jiang,
Jianyou Yu,
Ping Zhou,
Feicong Zhou,
Jiayong Lin,
Jinyi Li,
Ming Lin,
Feiya Lei,
Zhijie Wang

Affiliations

Yifan Jiang: Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu, Sichuan 610031, China; School of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
Jianyou Yu: Project Office of Yanchong Highway, Zhang Jiakou, Hebei 075000, China
Ping Zhou: Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Sichuan 611756, China; Corresponding authors at: Faculty of Geosciences and Environmental Engineering & Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu, China.
Feicong Zhou: Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu, Sichuan 610031, China; School of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
Jiayong Lin: Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu, Sichuan 610031, China; School of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
Jinyi Li: Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu, Sichuan 610031, China; School of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
Ming Lin: Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu, Sichuan 610031, China; School of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
Feiya Lei: Infrastructure Operations Department of West China Hospital, Sichuan University, Chengdu, Sichuan 610000, China
Zhijie Wang: Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu, Sichuan 610031, China; School of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China; Corresponding authors at: Faculty of Geosciences and Environmental Engineering & Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu, China.

Journal volume & issue: Vol. 8
pp. 196 – 209

Abstract

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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.

Published in Underground Space

ISSN: 2096-2754 (Print); 2467-9674 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Engineering (General). Civil engineering (General): Engineering geology. Rock mechanics. Soil mechanics. Underground construction
Website: https://www.keaipublishing.com/en/journals/underground-space/

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