本文主要研究内容
作者孔少波（2019）在《盾构隧道安全疏散通道加压送风计算分析》一文中研究指出：为防止盾构隧道行车道发生火灾时烟气侵入人员疏散通道,可通过在盾构隧道疏散通道内设置独立机械加压送风系统保证疏散通道内正压状态进行防烟,提高人员疏散安全性。分别利用风速法和压差法对某隧道工程疏散通道加压送风系统送风量进行试算,并采用FDS (Fire Dynamics Simulator)软件对疏散前室送风、疏散通道单侧送风及疏散通道双侧送风3种加压送风方式进行模拟分析,对比不同加压送风方式下各疏散口风速、温度、能见度的情况。结果表明,通过风速法计算得到的加压送风量要大于压差法。采用前室加压送风会造成较强的气流扰动,导致疏散口附近风速及温度剧烈波动,部分烟气进入前室,不利于人员疏散。采用疏散通道加压送风时,疏散口处风速稳定。但采用单侧加压送风时,火源下游疏散口处会有部分烟气积聚,影响人员疏散。采用双侧加压送风时烟气积聚少,疏散口附近温度、能见度等安全指标均在临界范围内,防烟效果良好,可以保证人员疏散安全。因此,建议采用纵向疏散通道加压送风,送风量建议采用风速法计算,当采用纵向疏散通道双侧加压送风时,建议在风速法得出的送风量基础上增加10%作为安全值。
Abstract
wei fang zhi dun gou sui dao hang che dao fa sheng huo zai shi yan qi qin ru ren yuan shu san tong dao ,ke tong guo zai dun gou sui dao shu san tong dao nei she zhi du li ji xie jia ya song feng ji tong bao zheng shu san tong dao nei zheng ya zhuang tai jin hang fang yan ,di gao ren yuan shu san an quan xing 。fen bie li yong feng su fa he ya cha fa dui mou sui dao gong cheng shu san tong dao jia ya song feng ji tong song feng liang jin hang shi suan ,bing cai yong FDS (Fire Dynamics Simulator)ruan jian dui shu san qian shi song feng 、shu san tong dao chan ce song feng ji shu san tong dao shuang ce song feng 3chong jia ya song feng fang shi jin hang mo ni fen xi ,dui bi bu tong jia ya song feng fang shi xia ge shu san kou feng su 、wen du 、neng jian du de qing kuang 。jie guo biao ming ,tong guo feng su fa ji suan de dao de jia ya song feng liang yao da yu ya cha fa 。cai yong qian shi jia ya song feng hui zao cheng jiao jiang de qi liu rao dong ,dao zhi shu san kou fu jin feng su ji wen du ju lie bo dong ,bu fen yan qi jin ru qian shi ,bu li yu ren yuan shu san 。cai yong shu san tong dao jia ya song feng shi ,shu san kou chu feng su wen ding 。dan cai yong chan ce jia ya song feng shi ,huo yuan xia you shu san kou chu hui you bu fen yan qi ji ju ,ying xiang ren yuan shu san 。cai yong shuang ce jia ya song feng shi yan qi ji ju shao ,shu san kou fu jin wen du 、neng jian du deng an quan zhi biao jun zai lin jie fan wei nei ,fang yan xiao guo liang hao ,ke yi bao zheng ren yuan shu san an quan 。yin ci ,jian yi cai yong zong xiang shu san tong dao jia ya song feng ,song feng liang jian yi cai yong feng su fa ji suan ,dang cai yong zong xiang shu san tong dao shuang ce jia ya song feng shi ,jian yi zai feng su fa de chu de song feng liang ji chu shang zeng jia 10%zuo wei an quan zhi 。
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论文详细介绍
论文作者分别是来自安全与环境学报的孔少波，发表于刊物安全与环境学报2019年03期论文，是一篇关于安全工程论文,盾构隧道论文,疏散通道论文,加压送风论文,烟气控制论文,安全与环境学报2019年03期论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自安全与环境学报2019年03期论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：安全工程论文; 盾构隧道论文; 疏散通道论文; 加压送风论文; 烟气控制论文; 安全与环境学报2019年03期论文;