防撞护栏对公路风吹雪雪害作用机理研究  

Mechanism of Anti-Collision Guardrails to Snow Drift Disasters on Highways

作　　者：彭国冬 席建锋[2] 张思源 李敏 刘梓伟 邢瑞民 PENG Guodong;XI Jianfeng;ZHANG Siyuan;LI Min;LIU Ziwei;XING Ruimin(Xilingol League Qiantu Traffic Design Co.,Ltd.,Xilinhot,Inner Mongolia 026000,China;Transportation College,Jilin University,Changchun,Jilin 130022,China;Inner Mongolia Transportation Design and Research Institute Co.,Ltd.,Hohhot,Inner Mongolia 010010,China)

机构地区：[1]锡林郭勒盟乾图交通设计有限责任公司,内蒙古锡林浩特026000 [2]吉林大学交通学院,吉林长春130022 [3]内蒙古交通设计研究院有限责任公司,内蒙古呼和浩特010010

出　　处：《中外公路》2024年第4期239-246,共8页Journal of China & Foreign Highway

基　　金：内蒙古自治区科技重大专项(编号:zdzx2018041)。

摘　　要：随着中国交通强国战略的持续推进,高等级公路在路网中的比重持续增加,交通安全设施的布设数量也越来越多。内蒙古自治区锡林郭勒盟冬季漫长、风力强劲,是中国深受风吹雪灾害影响的典型地区之一,通过实地调查发现,因交通安全设施导致的“道路雪阻”“视程障碍”等公路风吹雪雪害问题日益突出,严重制约了公路交通运输功能的有效发挥,严重影响了当地经济和社会发展。其中,防撞护栏诱发风吹雪雪害的路段数和严重程度远超其他交通安全设施。因此,该文基于锡林郭勒盟公路风吹雪雪害的实地调查与分析,通过计算机仿真的方法,主要研究作为公路交通安全设施的防撞护栏对整体式公路路基断面风速流场的影响与作用规律,弥补防撞护栏对风吹雪雪害形成机理研究方面的滞后与欠缺,同时也为中国风吹雪地区公路防撞护栏的布设与雪害防治提供理论依据。With the continuous promotion of China’s strategy of building the country with a strong transportation network,the proportion of high-grade highways in the road network continues to increase,and the number of traffic safety facilities is increasing.Xilingol League in the Inner Mongolia Autonomous Region has a long winter and strong wind,which is one of the typical areas in China deeply affected by snow drift disasters.Through field investigation,it is found that“road snow resistance”“visual range obstacle”and other snow drift disasters caused by traffic safety facilities are also increasingly prominent,which seriously restricts the effective play of road transportation functions and seriously affects the economic and social development of the region.Among them,the number and severity of road sections with snow drift disasters caused by anticollision guardrails are far greater than those by other traffic safety facilities.Therefore,based on the field investigation and analysis of the snow drift disasters on the Xilingol League Highway,this paper mainly studied the impact and action law of the anti-collision guardrail,a highway traffic safety facility,on the wind speed and flow field of the integral highway subgrade section through computer simulation.It made up for the lag and deficiency in the research on the formation mechanism of snow drift disasters caused by anti-collision guardrails and provided a theoretical basis for the layout of highway anti-collision guardrails and snow disaster prevention in areas suffering from snow drift in China.

关 键 词：交通安全设施 防撞护栏 风吹雪 仿真分析 

分 类 号：U417.1[交通运输工程—道路与铁道工程]