Review on the Development Status of Tunnel Refractory Technology Research

With the economic development and technological innovation, the number of domestic tunnels has increased year by year. Because the tunnel structure is a closed and narrow structure, the loss of life and property caused by the fire is very serious. The manuscript summarizes the current status of the development of tunnel structure fire prevention technology. It introduced the development of fire protection technology for tunnel structures, fire protection technology for concrete composite structures, and fire resistance of fireproof coatings for fireproof panels, and summarized and prospected the current fire protection technology.