白茫雪山防雪走廊段公路风吹雪风速数值模拟研究  

Wind Speed Model of Snowdrift on Highway of the Anti-Snow Corridor in White Snow Mountain

作　　者：徐冬英 周开方[2] 程怡 康宝 XU Dongying;ZHOU Kaifang;CHENG Yi;KANG Bao(School of Civil Engineering,Shaoxing University,Shaoxing,Zhejiang 312000;Department of Geotechnical Engineering,School of Civil Engineering,Tongji University,Shanghai 200092;Xi＇an China Highway Geotechnical Engineering Co.,Ltd.,Xi＇an,Shaanxi 710075;Changye Construction Group Co.,Ltd.,Shaoxing,Zhejiang 312000)

机构地区：[1]绍兴文理学院土木工程学院,浙江绍兴312000 [2]同济大学土木工程学院,上海200092 [3]西安中交公路岩土工程有限责任公司,陕西西安710075 [4]长业建设集团有限公司,浙江绍兴312000

出　　处：《绍兴文理学院学报》2018年第8期115-120,共6页Journal of Shaoxing University

基　　金：住宅和城乡建设部研究开发项目(K72018064)

摘　　要：为了有效防治白茫雪山防雪走廊段风吹雪灾害的产生,在研究白茫雪山防雪走廊段地形地貌的基础上,使用Fluent软件进行数值模拟,数值模拟结果反映出,在设有防撞护栏和防雪墙的情况下,风雪流流经路面上方时风速一般会大幅下降且会产生大范围的涡旋减速区,造成严重的公路风吹雪灾害,模拟发现只能采取全封闭式的防雪棚防治措施;同时得出,上风侧土堆的阻挡风速越过土堆后在路面上风侧产生涡旋减速区,当气流遇到杂草或房屋后,绕过其时将发生附面层的分离现象,在杂草或房屋的后面形成涡流区,因而日常应对防雪走廊段周边土堆,土坑和杂草等障碍物的整平和清除,否则易造成公路风吹雪雪阻.In order to effectively prevent and control the snowdrift in the anti-snow corridor on the White Snow Mountain,the Fluent software is used for numerical simulation based on the relative study of the terrain and landform in the same area.It shows that the daily leveling and removal of obstacles such as mounds and weeds around the snow break corridor should be done; otherwise it causes wind and snow and snow obstruction on the roads.The numerical simulation results also show that the anti-snow wall can prevent the wind speed above the pavement,thus slowing down the disaster of wind and snow on the pavement,for a completely closed snow shelter is formed.

关 键 词：FLUENT 数值模拟 风吹雪 灾害 风速 

分 类 号：U418.5[交通运输工程—道路与铁道工程]