Rescue of fire accident in expressway tunnel?

In recent years, there have been many large-scale highway tunnel fire accidents in the world, which have caused a large number of casualties and vehicle damage, caused the collapse of the top of the local tunnel, and made the traffic on this section paralyzed for a long time after the incident. The severity and harmfulness of highway tunnel fires have attracted worldwide attention. From 1996 English Channel Tunnel Fire, 2000 Kitz Steinhau Tunnel Fire in Salzburg, Austria, 2003 Korean Subway Tunnel Fire, 2004 Zhenwushan Tunnel Fire in China, 2008 Dabaoshan Tunnel Fire in Shaoguan Section of Beijing-Zhuhai Expressway, etc. , have caused huge casualties and property losses. It can be said that tunnel fire accident rescue, like high-rise building fire, has become a major issue facing all countries in the world today, and it is also an important topic for fire fighting forces to explore and study fire fighting and rescue techniques and tactics.

The Shanghai-Kunming Expressway, numbered G60, is one of the main trunk lines of the east-west horizontal line of the national expressway network, and it is an important traffic artery connecting the western region and the eastern region of China, with a total length of 2,730 kilometers, starting from Shanghai, passing through Hangzhou, Jinhua, Quzhou, Shangrao, Nanchang, Yichun, Pingxiang, Zhuzhou, Xiangtan, Shaoyang, Huaihua, Majiang, Guiyang, Anshun and Qujing, and ending in Kunming. Shanghai-Kunming Expressway is one of the most difficult expressway projects in China at present, and tunnel construction is rare in China. Shanghai-Kunming Expressway runs through Qinglong County, Guizhou Province, with a total length of 50 kilometers. There are three tunnels, namely, short tunnel (Tongzilin tunnel is 245 meters), middle tunnel (Wu Tong tunnel 1389 meters) and long tunnel (Qinglong tunnel is 2730 meters). (Note: According to the tunnel classification standard of national highway industry, the extra-long tunnel is ≥ 30,000. Long tunnel ≤1000m,1000m.