Research on Aggregate Contact and Internal Force of Asphalt Mixture Based on Discrete Element Method

被引：0

作者：

Huang, Zirun ^{[1
]}

Liu, Yu ^{[1
]}

Zhang, Kui ^{[2
]}

机构：

[1] Changan Univ, Highway Sch, South Erhuan Middle Sect, Xian 710064, Shaanxi, Peoples R China

[2] Yiwu Urban Planning & Design Inst, 569 Jiangbin North Rd, Yiwu 322000, Zhejiang, Peoples R China

来源：

CICTP 2020: ADVANCED TRANSPORTATION TECHNOLOGIES AND DEVELOPMENT-ENHANCING CONNECTIONS | 2020年

关键词：

Asphalt mixture; Discrete element method; Aggregate contact; Internal force; FINITE-ELEMENT;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The contact state between the aggregates has a great influence on the overall performance of the asphalt mixture. This paper simulates different contact states in asphalt mixture based on discrete element method. Making mechanical analysis of the simulation model to explore the effect of contact state on the overall strength of asphalt mixture. It is concluded that line-to-surface contact and surface-to-surface contact account for the largest proportion of asphalt mixture and the greatest impact on asphalt mixture. When the center of mass of the two aggregates is on the same axis, the mix modulus is the largest and the structure is the most stable. The distribution pattern of aggregates also has a great influence on the strength of the mixture. The combination of structures with large contact and large degree of intrusion will significantly increase the strength of the structure.

引用

页码：1764 / 1776

页数：13

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