压实过程中多种物理场对热拌沥青的协同效应研究

IF 2.6 4区 工程技术 Q1 Mathematics
Huanan Yu, Yutang Gao, Guoping Qian, Chao Zhang, Changyun Shi, Jinguo Ge, Wan Dai
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引用次数: 0

摘要

热拌沥青(HMA)在压实过程中的多物理场对沥青路面的耐久性有重要影响,本研究旨在评估 HMA 现场压实过程中多物理场演变的协同效应。首先,监测了现场压实过程中的温度场、结构层厚度变化和结构层密度变化。其次,在温度场和压实厚度的多物理场协同影响下,获得了压实厚度的演化特性。最后,根据温度场和结构层密度得出了压实密度在多物理场协同影响下的演变特性。结果表明,在多物理场的协同影响下,现场压实过程可分为三个阶段。温度场冷却呈现两阶段特征。温度场与时间和密度场与温度场之间存在三次多项式演化特性。压实层厚度与碾压次数呈指数关系。骨料颗粒在水平方向、垂直方向和竖直方向上表现出不同的运动特征。在压实的三个阶段中,在多物理场的协同影响下,垂直位移大于水平位移。在不同压实模式的作用下,骨料颗粒的迁移和重组影响了压实过程多物理场的演化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Study on synergistic effect of multiple physical fields on hot mix asphalt during compaction process.

The multiple physical fields of hot mix asphalt (HMA) during the compaction process have a significant impact on the durability of asphalt pavement, and this research aimed to evaluate the synergistic effect of the HMA field compaction of multi-physical field evolution during the compaction process. First, the temperature field, structural layer thickness variation, and structural layer density variation were monitored during field compaction. Second, the evolution properties of compaction thickness were obtained under the synergistic influence of multi-physical fields by temperature field and compaction thickness. Finally, the evolution properties of compaction density were obtained under the synergistic influence of multi-physical fields based on the temperature field and structural layer density. The results showed that the field compaction process could be characterized by three stages under the synergistic impact of multi-physical fields. The cooling of the temperature field presents two-stage characteristics. There were cubic polynomial evolution properties for the temperature field versus time and the density versus temperature field. There was an exponential relationship between the thickness of the compacted layer and the number of mills. The aggregate particles showed different motion characteristics in the horizontal and vertical directions and vertical directions. The vertical displacement was larger than the horizontal displacement under the synergistic influence of multi-physical fields during the three stages of compaction. The migration and reorganization of aggregate particles affected the evolution of the multi-physics fields of the compaction process under the action of different compaction modes.

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来源期刊
Mathematical Biosciences and Engineering
Mathematical Biosciences and Engineering 工程技术-数学跨学科应用
CiteScore
3.90
自引率
7.70%
发文量
586
审稿时长
>12 weeks
期刊介绍: Mathematical Biosciences and Engineering (MBE) is an interdisciplinary Open Access journal promoting cutting-edge research, technology transfer and knowledge translation about complex data and information processing. MBE publishes Research articles (long and original research); Communications (short and novel research); Expository papers; Technology Transfer and Knowledge Translation reports (description of new technologies and products); Announcements and Industrial Progress and News (announcements and even advertisement, including major conferences).
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