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Study on spilled liquid from a continuous leakage in sloped tunnels
RISE Research Institutes of Sweden. Tianjin Fire Research Institute of MEM, China.
RISE Research Institutes of Sweden, Safety and Transport, Safety Research.ORCID iD: 0000-0001-7744-2390
RISE Research Institutes of Sweden, Safety and Transport, Safety Research.ORCID iD: 0000-0002-9340-6768
Tongji University, China.
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2022 (English)In: Tunnelling and Underground Space Technology, ISSN 0886-7798, E-ISSN 1878-4364, Vol. 120, article id 104290Article in journal (Refereed) Published
Abstract [en]

The study focuses on the behaviors of spilled liquid from a continuously leaked tank in sloped tunnels. Spillage width and area, which impact the potential heat release rates in case of fire, are investigated under different tunnel slopes and leakage flow rates by numerical simulations using interFoam based on the VOF method in the OpenFOAM toolbox following the validation. The simulation results show that the spillage width initially decreases rapidly and then slowly as the tunnel slope increases. Other parameters, including road surface roughness, physical properties of liquid and leakage source height, are also considered. Empirical models for predicting the spillage width and area are established considering both tunnel slope and leakage flow rate. The results may provide guidance for tunnel safety design and drainage system design affiliated with a tank leakage inside a tunnel. © 2021 The Author(s)

Place, publisher, year, edition, pages
Elsevier Ltd , 2022. Vol. 120, article id 104290
Keywords [en]
Spillage area, Spillage width, Spilled liquid, Tunnel fire, Tunnel slope, Numerical methods, Surface roughness, Tanks (containers), Tunnels, Heat release, Leakage flow rate, Release rate, Slope flow, Tunnel fires, VOF method, Liquids
National Category
Other Civil Engineering
Identifiers
URN: urn:nbn:se:ri:diva-57499DOI: 10.1016/j.tust.2021.104290Scopus ID: 2-s2.0-85121100263OAI: oai:DiVA.org:ri-57499DiVA, id: diva2:1623755
Note

Funding details: Tianjin Fire Research Institute of Ministry of Emergency Management, TFRI of MEM, 2021SJ09; Funding text 1: The authors would like to acknowledge the financial support from Tunnel and Underground Safety Center (TUSC) in Sweden and the Fundamental Research Funds from Tianjin Fire Research Institute of MEM (2021SJ09) in China.

Available from: 2021-12-30 Created: 2021-12-30 Last updated: 2023-06-08Bibliographically approved

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Li, Ying ZhenIngason, Haukur

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