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隧道建设(中英文) ›› 2016, Vol. 36 ›› Issue (4): 411-417.DOI: 10.3973/j.issn.1672-741X.2016.04.007

• 研究与探索 • 上一篇    下一篇

2车道公路隧道射流风机空间布局优化的CFD分析

赵黎1, 闫治国1,2,3   

  1. (1. 同济大学土木工程学院地下建筑与工程系, 上海 200092; 2. 同济大学土木工程防灾国家重点实验室, 上海 200092; 3. 同济大学岩土及地下工程教育部重点实验室, 上海 200092)
  • 收稿日期:2015-09-28 修回日期:2015-12-09 出版日期:2016-04-20 发布日期:2016-04-27
  • 作者简介:赵黎(1991—),男,河北秦皇岛人,同济大学隧道与地下建筑工程专业在读硕士,研究方向为隧道通风。Email: 1009448957@qq.com。
  • 基金资助:

    山区隧道防灾、资源利用及环保技术集成研究(2013318J02120)

Computational Fluid Dynamics (CFD) Analysis of Spatial Layout Optimization of Jet Ventilation Fan Used in Twolane Road Tunnel

ZHAO Li1, YAN Zhiguo1,2,3   

  1. (1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China; 3. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China)
  • Received:2015-09-28 Revised:2015-12-09 Online:2016-04-20 Published:2016-04-27

摘要:

为解决2车道公路隧道射流风机的空间布局优化问题,依托明堂山隧道工程,采用以往公路隧道射流风机通风效果数值模拟研究中不同的边界条件,将隧道出入口边界条件均设为大气压强,并不预先给定隧道入口风速大小。对影响射流风机升压力大小的因素,如风机纵向间距、风机布置高度、风机横向间距展开讨论,得到: 风机应设在距建筑限界15~30 cm高度处;风机横向净距应设为1.5~2倍风机直径;风机纵向间距应设在150 m以上。明堂山隧道实际风机布置方式所采用的参数均在优化结果范围内,按隧道实际长度及设计射流风机台数建模,模拟结果表明风机在进行优化布局后,隧道通风效果能够达到设计要求。

关键词: 明堂山公路隧道, 射流风机, 空间布局优化, 数值模拟, CFD

Abstract:

The jet ventilation of Mingtangshan Twolane Road Tunnel is numerically simulated so as to optimize the spatial layout of ventilation fans; and then the factors for the pressure rise of ventilation fan, i.e. longitudinal distance among fans, setting height of fan and transverse distance among fans, are discussed. The authors suggest that the jet fans should be installed at the position higher than building boundary about 15-30 cm; the transverse distance among fans should be 1.5-2 times fan diameter; and the longitudinal distance among fans should be larger than 150 m. The computational fluid dynamics (CFD) simulation results show that the jet ventilation fan after optimization can achieve good effect.

Key words: Mingtangshan Road Tunnel, jet ventilation fan, spatial layout optimization, numerical simulation, computational fluid dynamics (CFD)

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