随机停车模式下高速铁路双线隧道横通道间距的确定

发布时间：2018-04-11 23:21

本文选题：双线隧道 + 横通道间距　；参考：《中国铁道科学》2017年06期

【摘要】：针对高速铁路双线隧道内的列车火灾救援,以列车头部着火、失去动力、随机停靠在正对着横通道处、且人员疏散路径为上坡线路的工况作为人员安全疏散的最不利工况。采用火灾动态模拟器FDS建立最不利工况下的火灾仿真模型,确定可用的安全疏散时间。根据不同人员的逃生速度,采用人员疏散模拟软件EVAC,仿真计算必需的安全疏散时间。以人眼特征高度处烟气可见度小于10m时可用的安全疏散时间大于必需的安全疏散时间作为人员安全疏散的时间控制条件,确定隧道最佳的横通道间距。结果表明:当横通道间距分别为500和400m时,对应的可用的安全疏散时间均小于必需的安全疏散时间,因此不满足人员逃生的时间控制条件;当横通道间距为300m时,对应的可用的安全疏散时间大于必需的安全疏散时间,满足人员逃生的时间控制条件,可使人员安全疏散。因此建议高速铁路双线隧道横通道的设置间距为300m。
[Abstract]:In view of the train fire rescue in the double-track tunnel of high-speed railway, the train head catches fire and loses its power, and it is parked at random at the opposite horizontal passage, and the evacuation path is the working condition of the uphill line as the most unfavorable condition for the safe evacuation.The fire simulation model under the most unfavorable working conditions is established by using the fire dynamic simulator FDS to determine the available safe evacuation time.According to different escape speed, EVAC is used to simulate and calculate the necessary safety evacuation time.When the visibility of smoke is less than 10m, the safe evacuation time is larger than the necessary time, and the optimal distance between the tunnel and the tunnel is determined.The results show that when the distance of the transverse passage is 500 m and 400 m, the corresponding safe evacuation time is less than the necessary safety evacuation time, so the time control condition of personnel escape is not satisfied, and when the distance of the transverse passage is 300m, the corresponding safety evacuation time is less than the necessary safety evacuation time.The available safety evacuation time is larger than the necessary safety evacuation time, which satisfies the time control condition of personnel escape, and can make the personnel safe evacuation.Therefore, it is suggested that the distance between the cross passage of double-track tunnel of high speed railway is 300 m.
【作者单位】：西南交通大学交通隧道工程教育部重点实验室;西南交通大学土木工程学院;中国中铁二院工程集团有限责任公司;中国电建集团成都勘测设计研究院有限公司;
【基金】：国家自然科学基金资助项目(51508475) 中国铁路总公司科技研究开发计划项目(2013T001) 中央高校基本科研业务费理工类科技创新项目(2682016CX017) 西南交通大学高层次人才队伍建设科研支持项目(10101X10096078)
【分类号】：U458.1

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