| 基于颗粒流模拟的避险车道制动床长度确定方法 |
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| 引用本文： | 张高强,孙传夏,程晓辉,张建军,刘海涛. 基于颗粒流模拟的避险车道制动床长度确定方法[J]. 公路交通科技, 2011, 0(10): 118-123 |
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| 作者姓名： | 张高强 孙传夏 程晓辉 张建军 刘海涛 |
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| 作者单位： | 交通运输部公路科学研究院;公路交通安全技术交通行业重点实验室;河南省交通运输厅公路管理局;清华大学土木水利学院; |
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| 摘 要： | 提供了一种利用颗粒流模型模拟刹车失灵货车驶入避险车道制动床后的运动过程,进而确定制动床长度的方法.所建立的颗粒流模型能够较好地模拟刹车失灵货车驶入避险车道制动床后的运动过程.仿真模拟结果显示,FHWA方法偏不安全,工程设计时制动床长度不应小于FHWA方法计算值；制动床坡度越小,FHWA方法计算出的制动床长度越偏不安全....
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| 关 键 词： | 交通工程 长大下坡 安全保障工程 避险车道 制动床 颗粒流 |
Determining Method of Length of Arrested Bed of Truck Escape Ramp Based on Particle Flow Simulation |
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| ZHANG Gaoqiang,,SUN Chuanxia,CHENG Xiaohui,ZHANG Jianjun,LIU Haitao. Determining Method of Length of Arrested Bed of Truck Escape Ramp Based on Particle Flow Simulation[J]. Journal of Highway and Transportation Research and Development, 2011, 0(10): 118-123 |
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| Authors: | ZHANG Gaoqiang SUN Chuanxia CHENG Xiaohui ZHANG Jianjun LIU Haitao |
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| Affiliation: | ZHANG Gaoqiang1,2,SUN Chuanxia3,CHENG Xiaohui4,ZHANG Jianjun1,LIU Haitao3 (1.Research Institute of Highway,Ministry of Transport,Beijing 100088,China,2.Key Laboratory of Road Safety Research of Ministry of Transport,3.Henan Provincial Highway Administration,Zhengzhou Henan 450052,4.School of Civil Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | A model based on particle flow simulation for simulating the movement of brake failure trucks entering the arrester bed of truck escape ramp was proposed to determine the length of the arrester bed.The model can perfectly simulate the movement of the brake failure truck after entering the truck escape ramp.The simulation result shows that(1) FHWA approach is unsafe,and the length of the arrester bed should not less than the calculated value based on FHWA approach;(2) the smaller the slope of arrester bed,th... |
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| Keywords: | traffic engineering long and steep downgrade Highway Safety Enhancement Project(HSEP) truck escape ramp arrester bed particle flow |
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