路堑积雪平台的作用机理及参数优化研究  

Mechanism of action and parametric optimization of snow platform in road cutting

作　　者：马文勇[1,2,3,4] 郭世怡 李赛 张智博 高毅 詹子悦 MA Wenyong;GUO Shiyi;LI Sai;ZHANG Zhibo;GAO Yi;ZHAN Ziyue(State Key Lab of Mechanical Behavior and System Safety of Traffic Engineering Structures,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;College of Civil Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;MOE Key Lab of Road and Railway Engineering Safety Safeguard,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;Hebei Provincial Engineering Technology Innovation Center for Wind Engineering and Wind Energy Utilization,Shijiazhuang 050043,China)

机构地区：[1]石家庄铁道大学省部共建交通工程结构力学行为与系统安全国家重点实验室,石家庄050043 [2]石家庄铁道大学土木工程学院,石家庄050043 [3]石家庄铁道大学道路与铁道工程安全保障省部共建教育部重点实验室,石家庄050043 [4]河北省风工程和风能利用工程技术创新中心,石家庄050043

出　　处：《振动与冲击》2025年第7期114-123,共10页Journal of Vibration and Shock

基　　金：国家自然科学基金(52278511);河北省研究生创新资助项目(CXZZBS2024142)。

摘　　要：风吹雪灾害会降低路面能见度同时造成积雪堆积。因此准确预测路堑内的雪浓度与积雪是路堑风吹雪灾害研究的重点。研究采用欧拉方法的混合多相流模型进行数值模拟,并基于典型全路堑的实测数据验证了模拟方法的正确性。模拟得到流场、壁面摩擦速度、积雪以及能见度的分布情况。通过分析模拟结果揭示了积雪平台的防治机理,并提出最优的参数取值。结果表明:积雪平台可以产生低风速区域,有效地捕获雪粒从而减少路面积雪;路堑中风速小于0.05倍入口1 m高度处风速的区域可以反映路堑内的积雪分布;平台的最优参数取值为,上风侧边坡比1∶3、7/6倍的行车道路宽度、5/6倍的行车道路深度。Snow drifting disaster can reduce road visibility and cause snow accumulation.Therefore,to accurately predict snow concentration and accumulation in road cutting is the key for study on snow drifting disaster in road cutting.Here,the mixed multiphase flow model with Euler method was proposed for numerical simulation,and the correctness of the simulation method was verified based on the actually measured data of typical full road cuttings.Distributions of flow field,wall surface friction velocity,snow cover and visibility were obtained with simulation.By analyzing simulation results,the prevention and control mechanism of snow platform was revealed,and optimal parameter values were proposed.The results showed that snow platform can generate areas with low wind speeds to effectively capture snow particles and reduce road surface snow;the area where wind speed in road cutting is less than 0.05 times the wind speed at the place with a height of 1m from entrance can reflect snow distribution in road cutting;the optimal parameter values of snow platform are as follows:a slope ratio of 1∶3 on upwind side,7/6 times the width of driving road and 5/6 times the depth of driving road.

关 键 词：风吹雪 全路堑 积雪平台 数值模拟 参数优化 

分 类 号：U213.12[交通运输工程—道路与铁道工程]