| 特长公路隧道集中排烟方式研究 |
| |
| 引用本文： | 张玉春,;何川,;曾艳华,;吴德兴.特长公路隧道集中排烟方式研究[J].地震学刊,2009(6):663-667. |
| |
| 作者姓名： | 张玉春 ;何川 ;曾艳华 ;吴德兴 |
| |
| 作者单位： | [1]西南交通大学地下工程系,成都610031; [2]浙江省交通规划设计研究院,杭州310006 |
| |
| 摘 要： | 纵向通风排烟是我国长大公路隧道发生火灾时通风的主要形式，目前开始应用一种新型的特长公路隧道纵向通风集中排烟方式。本文借助CFD三维数值模拟技术，对两种排烟方式在火灾时的烟气控制效果进行了对比分析，研究了顶部设排烟道时，不同排烟开口大小和排烟口间距对隧道火灾时排烟效果的影响。研究表明：顶部设排烟道排烟较纵向通风排烟有较好的烟气控制效果，排烟口的设置间距和开口大小将影响隧道火灾时的排烟特性。
|
| 关 键 词： | 公路隧道火灾 烟气特性 排烟方式 数值模拟 |
Research on the Central Smoke Extraction System of Extra-long Highway Tunnel |
| |
| Institution: | ZHANG Yu-chun, HE Chuan, ZENG Yan-hua, WU De-xing (1. Department of Underground and Engineering, Southwest Jiaotong University, Chengdu 610031, China; 2. Zhejiang Provincal Plan Design and Research Institute of Communications, Hangzhou 310006, China) |
| |
| Abstract: | Tunnel longitudinal ventilation system for smoke control was the main form in extra-long road tunnels. A new central smoke extraction system for tunnel fire was introduced with consideration of smoke control. Using three-dimensional numerical simulation technology, smoke control effect and movement characteristics of the two smoke control methods were analyzed. With different smoke open size and spacing, the smoke control effect was studied for tunnel fire in central smoke extraction system. The central smoke extraction system has better effect than longitudinal ventilation system for smoke control. The smoke movement characteristics and control effect were influenced by smoke open size and spacing. |
| |
| Keywords: | fire in road tunnel smoke movement characteristics smoke control method numerical simulation |
| 本文献已被 维普 等数据库收录！ |
|
