本文選題：環(huán)境工程 + 城市隧道�。� 參考：《公路交通科技》2014年08期

【摘要】：為了優(yōu)化公路隧道自然開口及射流風(fēng)機(jī)的位置,實(shí)現(xiàn)降低隧道建設(shè)成本、節(jié)約能源和減少環(huán)境影響的目的,以開設(shè)自然開口的公路隧道分段式縱向通風(fēng)方式為研究對(duì)象,通過(guò)建立公路隧道的通風(fēng)數(shù)學(xué)模型,研究自然開口和射流風(fēng)機(jī)的布置位置對(duì)隧道C0濃度分布的影響。研究表明:設(shè)置自然開口后,隧道內(nèi)污染物濃度分布情況并非一定優(yōu)于不布置自然開口;在多自然開口通風(fēng)方案中,將距離隧道出口較近的自然開口作為排風(fēng)自然開口可提高分污效果;將自然開口集中布置在隧道后部,同時(shí)將較多的射流風(fēng)機(jī)布置在自然開口群后端,可增大隧道出口的實(shí)際通風(fēng)量并降低隧道出口污染物濃度。
[Abstract]:In order to optimize the position of natural opening and jet fan of highway tunnel, reduce the cost of tunnel construction, save energy and reduce the environmental impact, this paper takes the longitudinal ventilation mode of highway tunnel with natural opening as the research object. By establishing the ventilation mathematical model of highway tunnel, the influence of the natural opening and the arrangement of jet fan on the distribution of C0 concentration in the tunnel is studied. The study shows that the distribution of pollutant concentration in the tunnel is not always better than that without the natural opening after the natural opening is set up, and in the ventilation scheme of multiple natural openings, Using the natural opening near the tunnel outlet as the natural opening of the exhaust air can improve the effect of separating pollution, and the natural opening is arranged in the back of the tunnel, and more jet fans are arranged at the back of the natural opening group. It can increase the actual ventilation of tunnel outlet and reduce the pollutant concentration at tunnel outlet.
【作者單位】： 天津大學(xué);天津市市政工程設(shè)計(jì)研究院;鐵道第三勘察設(shè)計(jì)院集團(tuán)有限公司;
【基金】：2010年度天津市科委科技支撐重點(diǎn)計(jì)劃項(xiàng)目(10ZCKFSF02300)
【分類號(hào)】：U453.5
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本文編號(hào)：1873000