1. Lv kangcheng 1999.Highway tunnel facilities. Communications Press, Beijing.
2. Hu Longhua.2006.Studies on Thermal Physics of Smoke Movement in Tunnel Fires.Hefei: University of Science and Technology of China.
3. KunschJP. 2002. Simple model for control of fire gasesina ventilated tunnel. Fire Safety Journal,p. 67.
4. Oka Y, AtkinsonGT., 1995.Control of smoke flow in tunnel fires.Fire Safety Journal,, p. 305.
5. Zhao Wangda,Lihong,Xu zhisheng,Jiangxuepeng. 2010.Study on backflow distance of smoke under the fire situation in railway tunne lJournal of Disaster Prevention and Mitigation Engineering, p.246.