风致路堑积雪演化过程试验与模拟研究

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振动与冲击 ›› 2023, Vol. 42 ›› Issue (9) : 284-292.

论文

风致路堑积雪演化过程试验与模拟研究

马文勇1,2,3,4，李江龙1，孙元春5，李赛1，白建方1

作者信息 +

Tests and simulation for evolution process of wind-induced cutting snow accumulation

MA Wenyong1,2,3,4, LI Jianglong1, SUN Yuanchun5, LI Sai1, BAI Jianfang1

Author information +

文章历史 +

摘要

路堑是交通线路常见的路基断面形式，因断面构造特征较路堤更容易发生风致雪灾害。为了给实际道路断面形式设计和风吹雪灾害防治提供建议和参考，采用风洞试验与数值模拟方法，研究了4种不同开敞形式的路堑在不同风速下风致雪漂移堆积演化过程，分析了风速和路堑开敞形式对积雪分布和演化过程的影响，并基于路面积雪量和积雪深度评估了不同路堑抵御雪灾害能力。结果表明，当上风侧边坡坡度大于下风侧边坡坡度时，路堑路面积雪量最少，路面的积雪最薄；增大风速和增加持续时间会加剧路面积雪，是影响积雪分布的重要因素；改变路堑边坡对减少路面积雪量作用有限，需设置其他防治措施来减轻道路风致雪灾害。

Abstract

The cutting was a common roadbed cross-section in traffic lines, and it is more prone to wind-induced snow disasters than embankments due to cross-section characteristics . In order to provide suggestions and references for the cross-section design and the prevention and control of wind-blown snow disasters. Wind tunnel tests and numerical simulation methods were used to study the wind-induced snow accumulation processes on all-cuttings under different wind speeds. The influence of wind speed and cutting opening form on the snow distribution and accumulation process were analysed, and the ability of different cuttings to resist snow disasters was evaluated based snow accumulatio and snow depth on the road. The results show that when the slope of the upwind side slope is greater than that of the downwind side slope, the snow on the cutting road is the least and the snow depth on the road is the thinnest; wind speed and duration are important factors on snow accumulation,and increasing the wind speed and increasing the duration will aggravate the snow on the road; Changing the cutting slope has limited effect on reducing the snow on the road, and other prevention measures need to be set to reduce the snow disasters caused by snow drift.

导出引用

马文勇1,2,3,4，李江龙1，孙元春5，李赛1，白建方1. 风致路堑积雪演化过程试验与模拟研究[J]. 振动与冲击, 2023, 42(9): 284-292

MA Wenyong1,2,3,4, LI Jianglong1, SUN Yuanchun5, LI Sai1, BAI Jianfang1. Tests and simulation for evolution process of wind-induced cutting snow accumulation[J]. Journal of Vibration and Shock, 2023, 42(9): 284-292

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