西藏地区水泥混凝土路面耐候性设计指标分区划分研究  

Division of Weatherability Design Index for Cement Concrete Pavement in Tibet

作　　者：吕骄阳 权磊[2] LU Jiao-yang;QUAN Lei(School of Traffic Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;Traffic Engineering Research Center, Highway Science Research Institute, Beijing 100088, China)

机构地区：[1]哈尔滨工业大学交通科学与工程学院,哈尔滨市150001 [2]交通运输部公路科学研究院交通公路工程研究中心,北京市100088

出　　处：《公路》2017年第12期84-90,共7页Highway

基　　金：国家科技支撑计划项目;项目编号2014BAG05B00;交通运输部建设科技项目;项目编号2013 318 490 010

摘　　要：通过收集西藏自治区22个气象站点及周边3省4个气象站点30年的气象资料,对西藏地区气候环境要素与水泥混凝土路面的影响特性进行了研究,具体包括西藏地区气候特点及其影响、气温的时空分布、春秋两季冻融循环规律、太阳辐射分布、30年一遇的最大温度梯度及其对水泥混凝土路面温度场的特征分布等方面,得到西藏地域有冻和无冻区域分布、冰冻指数、冻融循环天数、最大温度梯度等若干重要结论。研究成果可为西藏区域内水泥混凝土路面的研究与施工,特别是修建水泥混凝土路面过程中的施工组织管理、优化配合比设计、后期养护和维修等工作提供参考。In this paper, the influence of climate factors and cement studied by collecting meteorological data of 22 meteorological stations in the concrete pavement in Tibet is Tibet Autonomous Region and 30 meteorological stations in the surrounding three provinces, which include the spatial characteristics of the Tibetan area and its influence, the temporal and spatial distribution of temperature, the freezing and thawing cycle in spring and autumn, the maximum solar radiation distribution, the maximum temperature gradient in 30 years and the distribution of the temperature field of the cement concrete pavement. There are several important conclusions regarding the distribution of frozen and unfrozen areas, the freezing index, the number of freezer cycles and the maximum temperature gradient in the Tibetan area. This study can provide reference for the research and construction of cement concrete pavement in Tibet, especially the construction organization management, optimization of mix design, repair and maintenance of cement concrete pavement.

关 键 词：西藏 水泥混凝土 气候 耐候性 

分 类 号：U416.216[交通运输工程—道路与铁道工程]