沥青混合料离析的离散元模拟  

Simulation of asphalt mixture segregation with DEM

作　　者：周长红[1] 王元杰[1] 杜仲宝[1] 

机构地区：[1]大连理工大学交通运输学院,辽宁大连116024

出　　处：《山西建筑》2012年第23期120-121,共2页Shanxi Architecture

摘　　要：针对沥青混合料堆积时出现的离析现象,以颗粒离散单元法为基础,通过编制数值模拟程序对沥青混合料的离析进行数值模拟计算,并通过室内料堆法对沥青混合料进行离析试验,归纳了离析的大致规律。将试验结果与数值模拟结果进行比较,验证数值模拟程序的效用性,为今后沥青混合料的离析提供了一种更方便快捷的方式。In light of the segregation phenomenon occurring in asphalt mixture piling, taking the DEM as the foundation, the paper carries out the numerical simulation calculation of asphalt mixture segregation by compiling numerical simulation program, carries out segregation test of asphalt mixture with indoor material piling method, and summarizes the general segregation law. And then, it compares the experimental results with numerical simulation results, and testifies the effectiveness of the numerical simulation program, which has proved more convenient method for segregating the asphalt mixture in future.

关 键 词：沥青混合料 颗粒离散单元法 离析 数值模拟 离析指标 

分 类 号：TU528.42[建筑科学—建筑技术科学]