| 温度对沥青混合料摊铺运动场的影响 |
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| 引用本文： | 曹源文,周博,李升连,杨清华,白丽萍.温度对沥青混合料摊铺运动场的影响[J].筑路机械与施工机械化,2020(1):46-50. |
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| 作者姓名： | 曹源文 周博 李升连 杨清华 白丽萍 |
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| 作者单位： | 重庆交通大学机电与车辆工程学院;西南交通建设集团有限公司;云南建投博昕工程建设中心试验有限公司 |
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| 基金项目： | 云南省交通科技基金项目(2017(A)15);云南省交通科技基金项目(2018(23))。 |
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| 摘 要： | 为了研究螺旋摊铺过程中温度对摊铺均匀性的影响,首先通过对螺旋布料器的结构分析以及流体动力学的理论分析,建立了螺旋摊铺过程中沥青混合料的单项CFD运动场模型;然后利用所建模型模拟不同温度的运动场温度云图,从而对运动场温度分布进行分析;根据运动场温度云图计算单位面积的温度变化率以及不同初始温度下运动场模型的温度损失量,进而分析了不同摊铺温度对运动场的影响,为实际螺旋摊铺作业中选择摊铺温度提供参考。
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| 关 键 词： | 道路工程 螺旋布料器 均匀性 温度云图 |
Analysis of Influence of Temperature on Asphalt Mixture Motion Field in Paving Process |
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| CAO Yuan-wen,ZHOU Bo,LI Sheng-lian,YANG Qing-hua,BAI Li-ping.Analysis of Influence of Temperature on Asphalt Mixture Motion Field in Paving Process[J].Road Machinery & Construction Mechanization,2020(1):46-50. |
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| Authors: | CAO Yuan-wen ZHOU Bo LI Sheng-lian YANG Qing-hua BAI Li-ping |
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| Institution: | (School of Mechanical and Electrical Engineering,Chongqing Jiaotong University,Chongqing 400074,China;Southwest Traffic Construction Group Co.,Ltd.,Kunming 650000,Yunnan,China;Yunnan Jiantou Boxin Engineering Construction Test Co.,Ltd.,Kunming 650000,Yunnan,China) |
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| Abstract: | In order to study the effect of temperature on the paving uniformity in the spiral paving process,a single CFD motion field model of the asphalt mixture in the spiral paving process was established through a structural analysis of the spiral distributor and a theoretical analysis of fluid dynamics.The model was applied to simulate the contour maps of temperature for motion field,and the temperature distribution of the motion field was analyzed.The temperature change rate per unit area and the temperature loss of the motion field model at different initial temperatures were calculated according to the contour maps of temperature.The influence of different paving temperatures on the motion field provides reference for the selection of paving temperature in practice. |
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| Keywords: | highway engineering spiral distributor uniformity contour map of temperature |
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