公路隧道入口风吹雪灾害特性与防治研究  

RESEARCH ON THE CHARACTERISTICS AND PREVENTION OF THE SNOW DRIFT DISASTER AT THE ENTRANCE OF HIGHWAY TUNNELS

作　　者：李响 LI Xiang(China Ordnance Industry Survey and Geotechnical Institute Co.,LTD.,Bejing 100053,China)

机构地区：[1]中兵勘察设计研究院有限公司,北京100053

出　　处：《地质灾害与环境保护》2023年第1期90-94,共5页Journal of Geological Hazards and Environment Preservation

摘　　要：对公路隧道洞口处的风吹雪雪害进行防治有利于保障公路的正常通行。新疆地区的风吹雪是国内极具代表性的雪害,以乌鲁木齐至尉犁段高速公路(简称“乌尉高速”)天山胜利隧道北洞口路段风吹雪灾害易发点为研究对象:(1)进行现场勘察,测定隧道洞口处0 cm, 5 cm, 10 cm, 15 cm, 20 cm, 25 cm共6个深度雪样的密度,计算对应深度雪粒子的起动风速;(2)利用隧道洞口附近建立的长期气象观测站的多期风速、风向、积雪量等数据,研判风吹雪灾害的发生概率和变化趋势;(3)根据分析结果,建议合理选择洞门形式、设置导风板、储雪沟等防雪设施,最大程度上降低灾害的发生概率。论文的研究成果将有助于降低乌尉高速的天山胜利隧道在建设和运营过程中遭受风吹雪灾害的概率。The prevention and control of snow drift at the entrance of highway tunnel is beneficial to ensure the normal passage of highway.The snow drift in Xinjiang is a representative snow disaster in China.Taking the snow drift prone points in the north tunnel section of the Tianshan Shengli Tunnel from Urumqi to Yuli Expressway(“Wuyu Expressway”)as the research object:1)The site survey was conducted to measure the density of the six depths of snows at the north entrance of the tunnal:0cm,5cm,10cm,15cm,20cm,25cm,and the starting wind speed of snows in corresponding depth is calculated;2)The multi-phase wind speed,wind direction and snow volume from the established long-term meteorological observation station near the tunnel entrance are used to study and judge the occurrence probability and trend of the snow drift disasters;3)According to the analysis results,it is recommended to reasonably choose the snow protection facilities,such as the type of tunnel doors,wind deflector,snow storage ditch to minimize the probability of disasters.The research results will help reduce the probability of the snow drift during the construction and operation of the Tianshan Shengli Tunnel on Wuyu Expressway.

关 键 词：公路 隧道入口 雪流调查 防雪漂 

分 类 号：P429[天文地球—大气科学及气象学] U459.2[建筑科学—桥梁与隧道工程]