铁道科学与工程学报2016，Vol.13Issue(8)：1486-1491,6.
基于洛杉矶磨耗试验和图像分析道砟劣化研究
Ballast degradation analysis by los angeles abrasion test and i mage analysis method
摘要
Abstract
To reveal the mechanism of ballast degradation,the Los Angeles abrasion test was conducted,and the 3D laser scanner was utilized for image index analysis before and after the test.During the test,the geometrical parameter of ballast particles were changing,including volume,shape,and abrasion loss.The outcome demon-strates that the main abrasion loss results from angularity breakage,the maximum abrasion depth is between 4-9mm,and the average abrasion depth is within 1 mm.The abrasion loss increases with ballast particle size.The results are useful for ballast material standard,degradation evaluation and maintenance.关键词
道砟/洛杉矶磨耗试验/图像分析/劣化Key words
ballast/Los Angeles abrasion test/image analysis/degradation分类
交通工程引用本文复制引用
井国庆,郭云龙,黄红梅,郄录朝..基于洛杉矶磨耗试验和图像分析道砟劣化研究[J].铁道科学与工程学报,2016,13(8):1486-1491,6.基金项目
国家自然科学基金资助项目 （）
