| 城市交通隧道洞口污染物扩散的控制策略研究 |
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| 引用本文： | 田利伟.城市交通隧道洞口污染物扩散的控制策略研究[J].建筑热能通风空调,2011,30(2):28-32. |
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| 作者姓名： | 田利伟 |
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| 作者单位： | 中铁第四勘察设计院集团有限公司 |
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| 摘 要： | 通过大型环境风洞试验的方法,研究了绿化隔离带以及中隔墙对城市交通隧道洞口污染的扩散进行了研究.对于设置绿化隔离带工况,研究了不同风速大小/风向下绿化隔离带对废气的洞口直接排放中污染物扩散影响,获得了洞口排放污染物在不同来流风速/风向条件下的浓度衰减规律及其影响范围;对于设置中隔墙工况,试验涉及了三种不同中隔墙长度(隧道...
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| 关 键 词： | 城市隧道 污染物 绿化隔离带 衰减率 |
Research on Control Strategy of Pollutants Diffusion from Traffic Tunnels |
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| TIAN Li-wei.Research on Control Strategy of Pollutants Diffusion from Traffic Tunnels[J].Building Energy & Environment,2011,30(2):28-32. |
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| Authors: | TIAN Li-wei |
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| Affiliation: | TIAN Li-wei China Railway Siyuan Survey and Design Group,Co.,Ltd. |
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| Abstract: | In this paper,a large-scale environmental wind tunnel test was carried out,the diffusion of exhaust gas jetted out from city traffic tunnel is studied,the impact of mid-partition wall and greenbelt on pollutant diffusion are analyzed.For greenbelt installing in downwind side of road,the structure size of greenbelt,jet velocity of exhaust gas and relevant ambient meteorologic parameters are considered,and the decay rates of exhaust gas under different conditions are gained.For mid-partition wall,the study is... |
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| Keywords: | traffic tunnels pollutants greenbelt decay rate |
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