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Räddningsinsatser i långa spårtunnlar II: Kompletterande fullskaleförsök med verklig brand
RISE Research Institutes of Sweden, Brand och Säkerhet.ORCID iD: 0000-0002-9598-0958
Briab.ORCID iD: 0000-0001-7145-0461
SSBF.
Responsible organisation
2026 (Swedish)Report (Other academic)
Abstract [en]

This report describes full-scale experiments conducted in a railway tunnel under real fire conditions. The aim was to study firefighters’ searching and moving speed, air consumption and risk assessment when operating without simultaneous build-up of fire hoses in smoke-filled environments. The experiments were carried out in a decommissioned tunnel, where firefighters advanced 170–200 m towards a mock-up train fire. The results showed an average searching speed of approximately 0.3 m/s and a moving speed of approximately 0.85 m/s. Air consumption was lower compared to operations involving handling of hoses, although significant individual variation was observed. Measurements using thermal imaging cameras consistently underestimated gas temperatures compared to thermocouples, indicating uncertainties in temperature interpretation under smoke-filled conditions. The use of thermal imaging cameras in combination with continuous LED guidance lighting did however contribute to a high level of perceived safety. The findings support continued development of fire and rescue methods without simultaneous hose build-up in smoke-filled tunnel environments, provided that continuous risk assessment is maintained.

Abstract [sv]

Denna rapport redovisar resultat från fullskaliga försök avseende räddningsinsatser i spårtunnel med verklig brand. Fokus har legat på att studera förutsättningarna för rekognosering och avsökning i rökfylld tunnelmiljö utan säkerställd tillgång till släckvatten, i syfte att bidra till utveckling och verifiering av insatskoncept för moderna spårtunnlar. Försöken har genomförts i Brunsbergtunneln och utformats som realistiska insatsscenarier där rökdykare förflyttat sig cirka 170–200 meter i rökfylld miljö fram till ett brandobjekt bestående av en container som hade byggts om för att efterlikna en tågvagn. Ingen släckinsats eller slangdragning har genomförts, utan studien har avgränsats till momenten rekognosering och avsökning. Under försöken har data insamlats avseende bland annat förflyttningshastighet, luftförbrukning, temperaturer, rökdykarnas bedömningar med värmekamera samt upplevd trygghet.

Place, publisher, year, edition, pages
RISE Research Institutes of Sweden , 2026. , p. 27
Series
Trafikverkets forskningsportföljer
Series
RISE Rapport ; 2026:40
Keywords [en]
fire and rescue operation, rail tunnels, moving speed, firefighter safety
National Category
Other Engineering and Technologies
Research subject
FOI-portföljer, Bygga
Identifiers
URN: urn:nbn:se:trafikverket:diva-22283ISBN: 978-91-90109-69-4 (print)OAI: oai:DiVA.org:trafikverket-22283DiVA, id: diva2:2080224
Projects
Räddningsinsats i långa spårtunnlar II
Funder
Swedish Transport Administration, TRV 2023/33689
Note

QC 20260428

Available from: 2026-06-26 Created: 2026-06-26 Last updated: 2026-06-26

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Räddningsinsatser i långa spårtunnlar II(1549 kB)17 downloads
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Kumm, Mia

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2122232425262724 of 50
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