高速铁路隧道群内桥梁救援定点的设置方法研究

发布时间：2018-01-26 04:39

本文关键词： 隧道群桥梁救援定点设置模式事件树分析停车概率　出处：《中国安全科学学报》2014年06期 　论文类型：期刊论文

【摘要】：为解决高速铁路隧道群发生火灾后,列车可能行驶到桥梁上进行救援疏散的问题,研究隧道群间桥梁救援定点的设置方法。首先,提出桥梁救援定点的概念,总结4种桥梁救援定点的设置模式,即竖向疏散模式、纵向疏散模式、横向疏散模式和组合模式。然后,分析列车在隧道群发生火灾后的2种停靠方式,基于此建立桥上停车概率的事件树分析模型,推导出桥上停车概率的计算公式。最后,利用该方法对贵广高铁其岭-天平山隧道群间的黄沙河中桥进行救援定点设置决策。结果表明:列车在隧道群发生火灾后,停至桥梁上的概率达到30%时,应该在桥梁上设置救援定点;救援定点的设置模式主要与桥下地形条件、桥梁类型等因素有关。
[Abstract]:In order to solve the problem that the train may travel to the bridge to carry out rescue evacuation after the high-speed railway tunnel group fire, the method of setting the bridge rescue spot between the tunnel groups is studied. Firstly, the concept of bridge rescue point is put forward. This paper summarizes four kinds of fixed point setting modes of bridge rescue, that is, vertical evacuation mode, longitudinal evacuation mode, transverse evacuation mode and combination mode. Then, two kinds of stopping modes of trains after fire in tunnel group are analyzed. Based on this, the event tree analysis model of the bridge parking probability is established, and the formula of the bridge stopping probability is derived. Finally. This method is used to set the rescue point of the middle bridge of Huangsha River between the Ridge and Tianpingshan tunnels in Gui-Guang. The results show that the probability of train stopping on the bridge is 30% after the fire of the tunnel group. Rescue sites should be set up on bridges; The setting mode of rescue site is mainly related to the topographic condition and bridge type under the bridge.
【作者单位】：西南交通大学土木工程学院;四川建筑职业技术学院铁道工程系;教育部高速铁路线路工程重点实验室;中国中铁二院工程集团有限责任公司;
【基金】：中国中铁股份有限公司科技开发计划项目(重点-70-2010-1)
【分类号】：U458
【正文快照】： 0引言山区高速铁路隧道成群分布,桥隧相邻情况普遍,安全隐患多,救援疏散条件差。一旦列车在隧道内发生火灾,将陷入疏散环境恶劣,救援工作面狭隘的困境。因此,在桥隧相邻的情况下,如果列车在隧道内发生火灾,最好行驶至洞外桥上疏散乘客,这是减小乘客伤亡的最有效措施[1-3]。为

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