【摘要】：隨著我國公路隧道數(shù)量逐年增多,公路隧道運營安全顯得尤為重要。目前,國內(nèi)外對雙洞公路隧道火災人員疏散研究相對較多,且人員安全判斷條件也大多采用溫度和CO固定閾值。本文基于Crane修正模型和FED死亡模型的人員傷害風險值模型,首次將溫度和CO共同傷害作用的風險模型引入長大單洞雙向交通公路隧道火災人員疏散和逃生中。論文首先引入長大單洞雙向交通隧道通風和逃生平導的模型,借助PHOENICS軟件對不同火災規(guī)模、不同隧道環(huán)境風速下隧道內(nèi)的煙霧場、溫度場進行三維數(shù)值模擬,確定人員疏散時主隧道的控制風速以及平導的控制風速。其次,基于Crane修正模型和FED死亡模型的人員安全性判定條件,得到不同火災規(guī)模、不同控制風速下隧道內(nèi)各特征位置的最大可用安全時間;同時,借助Pathfinder疏散軟件對火災堵塞工況下人員疏散進行模擬,得到人員全部疏散的必需時間,通過對疏散結(jié)果的比較以及疏散風險的分析,確定單洞雙向交通公路隧道的合理橫通道間距。最后,基于以上結(jié)果,提出單洞雙向交通公路隧道防災救災體系框架,并給出單洞雙向交通公路隧道防災救災合理化建議。
[Abstract]:With the increasing number of highway tunnels in China, the safety of highway tunnels is becoming more and more important. At present, there are more researches on evacuation of fire occupants in double-hole highway tunnel at home and abroad, and temperature and CO fixed threshold are mostly used to judge the safety of people. Based on the Crane modified model and the FED death model, this paper first introduces the risk model of temperature and CO to the evacuation and escape of fire workers in the long single-hole two-way traffic tunnel. In this paper, the model of ventilation and escape guide of long and single tunnel two-way traffic tunnel is introduced, and the three-dimensional numerical simulation of the smoke field and temperature field in the tunnel under different fire scale and different tunnel wind speed is carried out with the help of PHOENICS software. Determine the control wind speed of the main tunnel and the control wind speed of the flat guide during evacuation. Secondly, based on the Crane modified model and the FED death model, the maximum available safety time of each characteristic position in the tunnel is obtained under different fire scale and different control wind speed. With the help of Pathfinder evacuation software, the evacuation of people under the condition of fire jam is simulated, and the necessary time for all evacuation is obtained. Through the comparison of evacuation results and the analysis of evacuation risk, To determine the reasonable distance between single tunnel and two-way traffic highway tunnel. Finally, based on the above results, the framework of disaster prevention and rescue system for single-hole two-way traffic highway tunnel is put forward, and the rational suggestions for disaster prevention and relief of single-hole two-way traffic highway tunnel are given.
【學位授予單位】：長安大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U458

【參考文獻】

相關(guān)期刊論文 前1條

1 徐永;廖少明;李偉平;門燕青;;公路隧道火災逃生距離及逃生風險分析[J];土木工程學報;2012年12期

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本文編號：2270957