环境因素对水库大坝沥青混凝土面板温度的影响分析  

Analysis of the Influence of Environmental Factors on the Temperature of Asphalt Concrete Facing on Reservoir Dam

作　　者：徐小东 汪正兴[2] 朱安龙 夏世法[2] XU Xiaodong;WANG Zhengxing;ZHU Anlong;XIA Shifa(PowerChina Huadong Engineering Corporation Limitied,Hangzhou,Zhejiang 311121,China;China Institute of Water Resources and Hydropower Research,Beijing 100038,China)

机构地区：[1]中国电建集团华东勘测设计研究院有限公司,浙江杭州311121 [2]中国水利水电科学研究院,北京100038

出　　处：《水利与建筑工程学报》2023年第4期15-20,29,共7页Journal of Water Resources and Architectural Engineering

基　　金：中国水科院基本科研业务“酸性骨料沥青混凝土浸水耐久性及抗剥离机理研究”(SM110145B0012021)。

摘　　要：温度对水库大坝沥青混凝土面板的运行有重要的影响。文中采用数值计算的方法研究了水库大坝沥青混凝土面板的温度场,同时考虑了气温、太阳辐射的作用。计算结果表明,在夏季高温和太阳辐射的同时作用下,沥青混凝土面板表面的最高温度能达到60℃~70℃。气温、太阳辐射、风速等环境因素对沥青混凝土面板的温度都有较大影响,其中太阳辐射的影响最大,风速的影响最小。依据计算结果提出了一个简易的水库大坝沥青混凝土面板表面最高温度的估算模型,模型计算结果与数值计算的结果基本吻合。文章的研究结果可以为水库大坝沥青混凝土面板的设计和运行管理提供依据。Temperature has significant impact on the operation of asphalt concrete facing on reservoir dams.In this paper,the temperature field of asphalt concrete facingon reservoir dam is analyzed by numerical method,taking into account the effects of air temperature and solar radiation.The calculation results show that the maximum temperature of asphalt concrete facing surface can reach 60℃~70℃under the simultaneous action of high temperature and solar radiation in summer.The air temperature,solar radiation,wind speed have a greater impact on the temperature of asphalt concrete facing,of which the solar radiation has the largest impact and the wind speed has the smallest impact.Based on the calculation results,a simple model for estimating the maximum surface temperature of asphalt concrete facing is proposed,and the model calculation results are basically consistent with the numerical calculation results.The research results of this article can provide a basis for the design and operation management of asphalt concrete facing on reservoir dams.

关 键 词：水库大坝沥青混凝土面板 温度场 太阳辐射 斜坡流淌 预估模型 

分 类 号：TV544.91[水利工程—水利水电工程]