| 竖井型自然通风公路隧道气流与污染物分布的影响因素研究 |
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| 引用本文： | 童艳,苏荣华,龚延风.竖井型自然通风公路隧道气流与污染物分布的影响因素研究[J].建筑科学,2011,27(6). |
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| 作者姓名： | 童艳 苏荣华 龚延风 |
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| 作者单位： | 南京工业大学城市建设与安全工程学院,南京,210009 |
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| 摘 要： | 本文针对城市竖井型自然通风公路隧道,采用理论与实验相结合的手段,研究建立了全长隧道气流与污染物分布的数学模型.运用该模型,分类研究了不同竖井间距、竖井截面尺寸、交通量、车速和主体长度工况下,隧道内气流与污染物的分布状况.得出了在浅埋竖井型市政公路隧道的修建与运营过程中,降低主体长度与提高车速可有效改善污染物浓度的分布状况.
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| 关 键 词： | 竖井型隧道 自然通风 影响因素 气流状况 |
Study on Influence Factors about Airflow and Pollution Distribution for Road Tunnels with Shafts under Natural Ventilation Condition |
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| TONG Yan,SU Rong-hua,GONG Yan-feng.Study on Influence Factors about Airflow and Pollution Distribution for Road Tunnels with Shafts under Natural Ventilation Condition[J].Building Science,2011,27(6). |
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| Authors: | TONG Yan SU Rong-hua GONG Yan-feng |
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| Affiliation: | TONG Yan,SU Rong-hua,GONG Yan-feng(College of Urban Construction and Safety Engineering,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | In this paper,for the urban road tunnels with shafts under natural ventilation condition,mathematical model for airflow and pollution distribution were set up,in which both theoretical and experimental methods were used.Based on this model,the statues of airflow and pollution distribution were studied under different shaft distants,shaft section sizes,traffic flows,vehicle velocities and main body lengths.It was concluded that during the construction and operation period for urban road tunnels with shallow ... |
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| Keywords: | tunnels with shafts natural ventilation influence factors airflow status |
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