摘要
高速公路隧道通风系统设计时需要对3个标准进行计算:卫生标准、舒适性标准、火灾排烟标准。取以上3个标准的最大值进行校核,确定隧道风机的规模。但在隧道长度超过6 000m之后,换气工况随着隧道长度增加,使得风机规模增长速度加快。基于此,论文通过查阅国内外规范、国内类似行业的做法来研究是否有必要将换气工况作为控制性工况来配置风机规模,以及如何取值,才能保证换气工况的合理性。
In the design of ventilation system of highway tunnel, three standards need to be calculated: hygiene standard, comfort standard and fire smoke exhaust standard. Take the maximum value of the above three standards for verification to determine the scale of the tunnel fan. However, when the tunnel length is more than 6000 m, with the increase of the tunnel length, the fan scale increases faster.Based on this, the paper studies whether it is necessary to configure the fan scale as a control condition by referring to the domestic and foreign specifications and the practices of similar industries at home and abroad, and how to take the value, so as to ensure the rationality of the ventilation condition.
作者
赵彬彬
张凯
付玮
高丽萍
ZHAO Bin-bin;ZHANG Kai;FU Wei;GAO Li-ping(China Highway Engineering Consulting Group Co.Ltd.,Beijing 100195,China)
出处
《工程建设与设计》
2020年第5期37-39,共3页
Construction & Design for Engineering
关键词
换气工况
换气风速
超长隧道
ventilation condition
ventilation wind speed
super-long tunnel
