公路隧道火灾防烟效果模型试验

IF 1 4区工程技术 Q4 ENGINEERING, CIVIL Gradevinar Pub Date : 2020-10-19 DOI:10.14256/jce.2671.2019

Jianwei Cheng, Fangyuan Liu, Shi Yu, Congling Shi, Chang Qi, M. Borowski, Yongjun Zhang

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引用次数: 1

摘要

在这项工作中，选择了一条150米长的典型隧道，并以1:15的比例建模，以评估其对烟雾控制的影响。基于Froude相似准则，对烟流场和纵向温度分布进行了32次模型试验。结果表明，烟气控制受纵向气流速度、开启排烟阻尼器数量和火力三个因素的影响，其中纵向气流速度对烟气控制的影响最大。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Model tests of fire smoke control effects in highway tunnels

In this work, a typical tunnel 150 m in length is selected and modelled at a scale of 1:15 to assess its effects on smoke control. A total of 32 model tests on smoke flow pattern and longitudinal temperature distribution have been carried out based on the Froude similarity criterion. The results show that smoke control is affected by three factors, namely, the longitudinal airflow velocity, number of opened smoke-exhaust dampers, and fire power, out of which the longitudinal airflow velocity has the greatest effect on smoke control.

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