特长公路隧道风机房防灾控制及辅助通道设置研究

发布时间：2018-02-24 17:06

  本文关键词： 特长公路隧道 风机房 疏散 运营通风 辅助通道 能耗　出处：《西南交通大学》2015年硕士论文　论文类型：学位论文

【摘要】：近年来,随着国民经济的迅猛发展,交通隧道“长、大、深”的特点日趋显现。特长公路隧道的规模和数量也在日益增多,而特长公路中通风因素成为了隧道运营及管理的关键。本文以山西省交通厅科技项目“特长公路隧道辅助通道设置及施工关键技术研究”为依托,以云山隧道1#竖井,3#斜井、宝塔山隧道地下风机房为研究对象,采用资料调研、理论分析、数值模拟相结合研究方法,对辅助通道合理设置、地下风机房防灾救援情况进行研究,主要的研究成果如下：1.通过对隧道发生火灾实例调研,系统分析了火灾的发生原因、特点及危害,并从理论上得出了计算火灾温度及烟流浓度的计算方法。2.依托宝塔山地下风机房结构,基于FDS和Building exodus数值模拟软件,建立风机房三维模型,分别对火灾情况及人员逃生进行模拟,给出不同情况下隧道地下风机房火灾及逃生参数,提出可利用逃生时间大于必须逃生时间作为风机房防灾设计依据,为风机房防灾类似设计提供参考。3.根据云山隧道斜井的结构形式及设置方式,基于CFD(流体动力学)理论,利用FLUENT数值模拟软件,对不同角度斜井的运营通风进行模拟,再通过伯努利方程、能量方程对其能耗进行计算。4.从快速施工出发,提出特长公路隧道采用小角度斜井用来增加施工工作面,而运营阶段开挖大角度斜井或竖井作为通风道,施工采用的小角度斜井作为逃生救援通道的新型辅助通道设置方法,并对其可行性进行分析。
[Abstract]:In recent years, with the rapid development of the national economy, the characteristics of traffic tunnels "long, large and deep" have become increasingly apparent. The size and number of extra-long highway tunnels are also increasing day by day. The ventilation factor in the super long highway has become the key to the tunnel operation and management. Based on the scientific and technological project of Shanxi Provincial Communications Department, "the study on the key Technology of setting up and Construction of the Auxiliary Tunnel of the extra long Highway Tunnel", this paper takes the shaft of the Yunshan Tunnel, which is located in the Shaft of the Yunshan Tunnel, as an inclined shaft. The underground fan room of Baotashan Tunnel is studied by the methods of data investigation, theoretical analysis and numerical simulation. The reasonable setting of auxiliary passage and disaster prevention and rescue of underground fan house are studied. The main research results are as follows: 1.Through investigating the fire cases in the tunnel, the causes, characteristics and harm of the fire are analyzed systematically. The calculation method of fire temperature and smoke concentration is obtained theoretically. 2. Based on the structure of underground fan room in Baota Mountain and based on FDS and Building exodus numerical simulation software, the three-dimensional model of fan room is established. The fire situation and personnel escape were simulated respectively, and the fire and escape parameters of tunnel underground fan room were given. It was put forward that the escape time could be more than the necessary escape time as the basis for the disaster prevention design of the fan house. According to the structure form and setting mode of inclined shaft in Yunshan tunnel, based on the theory of fluid dynamics, using FLUENT numerical simulation software, the operation ventilation of inclined shaft with different angles is simulated. The energy consumption is calculated by Bernoulli equation and energy equation. Starting from the rapid construction, it is put forward that the super-long highway tunnel uses small angle inclined shaft to increase the construction face, while the large-angle inclined shaft or shaft is excavated as the ventilation passage in the operation stage. The small angle inclined well is used as a new auxiliary channel setting method for escape and rescue channel, and its feasibility is analyzed.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U453.8
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本文编号：1531029