| 高速公路隧道(群)风险特征点的临界安全车速及其应用研究 |
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| 引用本文： | 郭忠印,戴忧华,周小焕.高速公路隧道(群)风险特征点的临界安全车速及其应用研究[J].中国公路学报,2010(Z2). |
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| 作者姓名： | 郭忠印 戴忧华 周小焕 |
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| 作者单位： | 同济大学交通运输工程学院; |
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| 基金项目： | 国家西部交通建设科技项目(2007 318 490 26) |
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| 摘 要： | 考虑高速公路隧道(群)各风险特征点的行车风险变化规律,对隧道(群)进行空间区段的划分,提出6个典型风险特征点;根据行车制动风险模型,分析隧道路段风险影响要素,如车辆初始速度、驾驶员反应时间、路面摩擦因数及道路纵坡坡度,给出了不同长度类型隧道(群)、不同时间、不同路面型式及灾害性天气下4个风险影响要素的取值;通过分析和对比理论计算结果,得到了隧道(群)各风险特征点在自由行驶状态和跟驰状况下的临界安全车速变化规律,进而得出各点的临界安全车速。结果表明:提出的隧道(群)风险特征点处的临界安全车速,能够为隧道运营安全管理提供理论依据。
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| 关 键 词： | 交通工程 高速公路隧道(群) 风险特征点 临界安全车速 驾驶员反应时间 摩擦因数 |
Critical Safety Speed and Its Application Research on Risk Characteristic Section of Expressway Tunnel(Tunnel Group) |
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| GUO Zhong-yin,DAI You-hua,ZHOU Xiao-huan.Critical Safety Speed and Its Application Research on Risk Characteristic Section of Expressway Tunnel(Tunnel Group)[J].China Journal of Highway and Transport,2010(Z2). |
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| Authors: | GUO Zhong-yin DAI You-hua ZHOU Xiao-huan |
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| Institution: | GUO Zhong-yin,DAI You-hua,ZHOU Xiao-huan (School of Transportation Engineering,Tongji University,Shanghai 201804,China) |
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| Abstract: | Considering the variation rule of traffic risk characteristic of the expressway tunnel (tunnel group),the division of tunnel(tunnel group) space segment was carried out,6 typical risk characteristics sections were put forward.According to the brake risk model,the risk factors of tunnel(tunnel group),such as the initial velocity,the driver reaction time,the friction coefficient and the longitudinal gradient were analyzed and values of different types of tunnel lengths,different time,different road surface ty... |
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| Keywords: | traffic engineering expressway tunnel(tunnel group) risk characteristic section critical safety speed driver reaction time friction coefficient |
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