[1]唐娴,戴经梁..基于颗粒流程序的沥青混合料颗粒接触模拟[J].郑州大学学报(工学版),2009,30(01):111-114.[doi:10.3969/j.issn.1671-6833.2009.01.025]
　Tang Xian,Dai Jingliang.Particle contact simulation of asphalt mixture based on particle flow program[J].Journal of Zhengzhou University (Engineering Science),2009,30(01):111-114.[doi:10.3969/j.issn.1671-6833.2009.01.025]
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基于颗粒流程序的沥青混合料颗粒接触模拟()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
30卷
期数:
2009年01期
页码:
111-114
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Particle contact simulation of asphalt mixture based on particle flow program
作者:
唐娴; 戴经梁.
陕西交通职业技术学院,公路工程系,陕西,西安,710018;长安大学,公路学院,陕西,西安,710064, 长安大学,公路学院,陕西,西安,710064
Author(s):
Tang Xian; Dai Jingliang
关键词:
颗粒;  沥青混合料;  颗粒接触;  颗粒流;  接触力网络图
Keywords:
DOI:
10.3969/j.issn.1671-6833.2009.01.025
文献标志码:
A
摘要:
沥青混合料级配设计时,通常先初拟级配再进行性能试验确定最优级配的做法,缺乏科学理论依据.因此,采用颗粒流的基本理论模拟混合料颗粒的运动规律,应用颗粒流程序的线性接触模型,赋予颗粒微观特性参数及模型尺寸,对CA0.2、CA0.4、CA0.6和CA0.8级配进行接触模拟,绘制颗粒接触力网络图,模拟结果表明,CA0.4与CA0.6的颗粒接触力比较均匀,该混合料有良好的接触力,在施工过程中具有良好的稳定性,不易发生滚动,而级配CA0.2与CA0.8的情况则相反.为沥青混合料级配设计提供一定的室内模拟依据.
Abstract:
When designing the gradation of asphalt mixture, the practice of first preparing the grading and then conducting performance tests to determine the optimal gradation lacks scientific theoretical basis. Therefore, the basic theory of particle flow is used to simulate the motion law of mixed material particles, the linear contact model of particle flow program is applied, the particle microscopic characteristic parameters and model size are given, the CA0.2, CA0.4, CA0.6 and CA0.8 grads are simulated for contact, and the particle contact force network diagram is drawn, and the simulation results show that the particle contact force of CA0.4 and CA0.6 is relatively uniform, the mixture has good contact force, has good stability during construction, and is not easy to roll. The situation of graded CA0.2 and CA0.8 is the opposite, which provides a certain indoor simulation basis for the grading design of asphalt mixture.

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更新日期/Last Update: 1900-01-01