Proceedings of the 2023 5th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2023)

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Study on smoke exhaust by roof openings in an underground fire lane

Authors
Zhenting Zhang1, Miaocheng Weng1, 2, *
1School of Civil Engineering, Chongqing University, Chongqing, 400045, People’s Republic of China
2Key Laboratory of New Technology for Construction of Cities in Mountain Area of Ministry of Education, Chongqing, 400045, People’s Republic of China
*Corresponding author. Email: mcweng@outlook.com
Corresponding Author
Miaocheng Weng
Available Online 24 April 2024.
DOI
10.2991/978-94-6463-398-6_47How to use a DOI?
Keywords
Metro depot; Underground fire lane; Natural ventilation; Opening interval
Abstract

To discuss the natural ventilation design parameters of underground fire lane for underground metro depot, a series of numerical simulations were conducted in this study to investigate the influence of opening interval on the smoke exhaust based on an underground fire lane of Chongqing Metro. The results indicated that: (1) Reducing the opening interval resulted in a decrease in both the spread distance of smoke and the speed at which the smoke front propagated. (2) The change in the opening interval did not significantly affect the distribution of ceiling temperatures between the fire source and the roof opening. However, decreasing the opening interval led to a reduction in the range of the high-temperature area on the ceiling. (3) While the increase in the opening interval did not have a notable effect on the visibility distribution near the fire source, it did increase the overall visibility behind the opening. The research outcomes presented in this paper offer valuable insights for the design of ventilation systems in underground fire lanes in the future.

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 2023 5th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2023)
Series
Atlantis Highlights in Engineering
Publication Date
24 April 2024
ISBN
10.2991/978-94-6463-398-6_47
ISSN
2589-4943
DOI
10.2991/978-94-6463-398-6_47How 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  - Zhenting Zhang
AU  - Miaocheng Weng
PY  - 2024
DA  - 2024/04/24
TI  - Study on smoke exhaust by roof openings in an underground fire lane
BT  - Proceedings of the 2023 5th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2023)
PB  - Atlantis Press
SP  - 498
EP  - 506
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-398-6_47
DO  - 10.2991/978-94-6463-398-6_47
ID  - Zhang2024
ER  -