公路大件运输空间可通行性评价方法  

Evaluation Method for Space Accessibility of Highway Abnormal Indivisible Load Transport

作　　者：田振鼎 吕路 王玉莹 张梦鸽 王孝冬 TIAN Zhen-ding;LÜLu;WANG Yu-ying;ZHANG Meng-ge;WANG Xiao-dong(College of Transportation Engineering,Chang’an University,Xi’an,Shaanxi 710064,China;China Railway First Survey and Design Institute Group Co.,Ltd.,Xi’an,Shaanxi 710043,China;Key Laboratory of Ministry of Education for Road and Traffic Engineering,Tongji University,Shanghai 201804,China;Guangzhou Yuelu Transportation Technology Co.,Ltd.,Guangzhou,Guangdong 510630,China)

机构地区：[1]长安大学运输工程学院,陕西西安710064 [2]中铁第一勘察设计院集团有限公司,陕西西安710043 [3]同济大学道路与交通工程教育部重点实验室,上海201804 [4]广州越路交通科技有限公司,广东广州510630

出　　处：《公路交通科技》2024年第3期179-189,共11页Journal of Highway and Transportation Research and Development

基　　金：交通运输部公路工程行业标准制修订项目(JTG-201913)。

摘　　要：为提高公路大件运输安全性,有效评估公路大件运输的空间可通行性,融合查表、建模计算和仿真评价3种方法,提出公路大件运输空间可通行性评价方法。按照大件运输车辆典型的组合类型,以牵引车+长轴距挂车和牵引车+多轴多轮液压挂车2类挂车组合为研究对象,通过分析大件运输车辆的类型、转向原理及扫空空间、失效形式等影响因素,分别建立大件运输通行公路的平曲线、竖曲线可通行性评价模型和评价标准,计算满足公路大件运输空间可通行性的理论扫空宽度。同时,利用Auto TURN软件创建大件运输车辆通行环境,进行车辆转弯路径模拟仿真,获得大件运输车辆通行时的外廓安全轨迹最大宽度。依据大件运输车辆的宽度范围,将大件运输车辆外廓尺寸界定为5级,并对比分析了理论计算的扫空宽度和仿真模拟的外廓安全轨迹最大宽度的误差,根据公路技术指标极限值和满足大件运输车辆空间可通行性条件的车辆外廓尺寸阈值,反向计算出满足不同等级的大件运输车辆的推荐的空间可通行公路集。结果表明:平曲线和竖曲线可通行性理论计算与仿真模拟的误差均处于可接受范围内,提出的公路大件运输空间可通行性评价方法较为科学有效。In order to improve the safety of abnormal indivisible load transport on highways and effectively assess the spatial accessibility safety of highway abnormal indivisible load transportation,a method for evaluating the spatial navigability of abnormal indivisible load transportation on highways is proposed by integrating 3 methods:tabular analysis,modeling and calculation,and simulation evaluation.Based on typical combinations of abnormal indivisible load transportation vehicles,including tractor-trailer with long wheelbase and tractor-trailer with multiple axles and wheels,the types of vehicles,steering principles,clearance space,failure modes and other influencing factors are analyzed.Evaluation models and criteria for the space accessibility of horizontal curves and vertical curves on highways are established,and the theoretical clearance width required for abnormal indivisible load transportation on highways is calculated.Additionally,the Auto TURN software is used to create the environment for the passage of abnormal indivisible load transportation vehicles and simulate their turning paths,thereby obtaining the maximum width of the outline safety trajectory during the passage of abnormal indivisible load transportation vehicles.Based on the width range of transportation vehicles,the outline dimensions of the abnormal indivisible load vehicles are classified into 5 levels.The errors between the theoretically calculated clearance width and the maximum width of the simulated outline safety trajectory are compared and analyzed.Furthermore,based on the limit values of highway technical indicators and the threshold of outline dimensions that satisfy the spatial navigability conditions for abnormal indivisible load transportation vehicles,recommended sets of highways suitable for different levels of abnormal indivisible load transportation vehicles are calculated.The result shows that the errors between the theoretically calculated space accessibility of horizontal curves and vertical curves and the simulation-based

关 键 词：交通工程 空间可通行性评价 Auto TURN仿真 公路大件运输 扫空空间 

分 类 号：U492.8[交通运输工程—交通运输规划与管理]