Proceedings of the 2024 5th International Conference on Urban Construction and Management Engineering (ICUCME 2024)

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Study on Air Volume Ratio of New Connecting Flue Structure in Urban Tunnel

Authors
Xuepeng Jiang1, Ding Yuan1, *, Yuyuan Chen2
1Wuhan University of Science and Technology, Wuhan, 430081, China
2China Railway Fourth Survey and Design Institute Group Co., Ltd., Wuhan, 430063, China
*Corresponding author. Email: 1738190529@qq.com
Corresponding Author
Ding Yuan
Available Online 17 September 2024.
DOI
10.2991/978-94-6463-516-4_14How to use a DOI?
Keywords
Connecting flue; air volume ratio; extra-long cross-sea tunnel; numerical simulation
Abstract

Qingdao Second Cross-Harbour Tunnel connects the north-south line flue by arranging connecting flues at longitudinal intervals on the exhaust ducts of the two tunnels. As there is no case of connecting flue in highway tunnel for reference, it is urgent to clarify the optimal air volume ratio of extra-long cross-sea highway tunnel with connecting flue under different air volume ratios of north-south line and shaft of each line. Fluent software is used to simulate the flow field characteristics under different air volume ratios. The results show that the air volume ratios of the two lines have great influence on the wind speed of the connecting flue. The average wind speed of the flue in the middle of the connecting flue is increased from 0.89m/s to 1.18m/s, which is about 32.58%, and the utilization rate of the connecting flue is increased from 41.18% to 54.75%. It is recommended to use the unbalanced air volume ratio mode of two-line shaft, and the air volume ratio of two-line shaft is 2:8, which has the highest utilization rate of connecting flue.

Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2024 5th International Conference on Urban Construction and Management Engineering (ICUCME 2024)
Series
Advances in Engineering Research
Publication Date
17 September 2024
ISBN
978-94-6463-516-4
ISSN
2352-5401
DOI
10.2991/978-94-6463-516-4_14How to use a DOI?
Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Xuepeng Jiang
AU  - Ding Yuan
AU  - Yuyuan Chen
PY  - 2024
DA  - 2024/09/17
TI  - Study on Air Volume Ratio of New Connecting Flue Structure in Urban Tunnel
BT  - Proceedings of the 2024 5th International Conference on Urban Construction and Management Engineering (ICUCME 2024)
PB  - Atlantis Press
SP  - 113
EP  - 124
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-516-4_14
DO  - 10.2991/978-94-6463-516-4_14
ID  - Jiang2024
ER  -