Study on Smoke Exhaust Systems for Long Highway Tunnels in Fire

摘要：

Smoke control system is necessary for long highway tunnel to ensure peoples safety in case of fire. Base on working principles of longitudinal and central smoke exhaust systems, the advantages and shortcomings of them for long highway tunnels are analyzed, and an innovative combined smoke exhaust system is developed. The effects of these smoke exhaust systems are compared by computational fluid dynamics simulation of a fire in Cangling tunnel. The results indicate that central smoke exhaust system has the best performance and is recommended for long highway tunnels, for it has little influence on smoke segregation and can confine smoke within 300m wherever the fire location is. Considering the high cost of central smoke exhaust system, combined smoke exhaust system may find the balance between safety and cost.

关键词： long highway tunnel fire longitudinal smoke exhaust system central smoke exhaust system combined smoke exhaust system

作者: XIE Baochao XU Zhisheng YI Liang

作者单位: Disaster Prevention Science and Safety Technology Institution, School of Civil Engineering and Architecture, Central South University, Changsha 410075, Hunan, China

会议类型: 国际会议

会议名称: The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)

会议地点: 杭州

会议语种:英文

页码: 775-782

在线出版日期: 2010-10-26（万方平台首次上网日期，不代表论文的发表时间）