A review on Highway Tunnel Fire Test Research

The emergence of highway tunnels provides convenient conditions for transportation, but at the same time, many potential risk factors will restrict their normal use. Fire is the most common of these factors, so the danger of fire accidents cannot be ignored. This article briefly describes the characteristics and harmfulness of tunnel fires, reviews the current research status of highway tunnel fires, and summarizes the progress of highway tunnel fire experiments around the research methods, fire field characteristics, and ventilation control methods. Key factors including heat release rate, ceiling temperature, smoke stratification characteristics, multiple fire sources and the critical velocity were referred to in this article. The work could provide theoretical and technical support for the fire safety and smoke control design of highway tunnels.