北京交通大学学报2017，Vol.41Issue(1)：1-6,6.DOI:10.11860/j.issn.1673-0291.2017.01.001
脏污材质对散体道床剪切力学性能影响的试验研究
Experiment research of shear behavior of railway ballast influenced by different fouling materials
摘要
Abstract
Ballast fouling will affect the shear behavior of ballast bed.In order to reveal the influencing regularity of fouling materials on the shear behavior of railway ballast,a large scale direct shear apparatus dedicated for railway ballast was developed,and direct shear tests were conducted to study the effects of different ballast fouling materials and different ballast fouling ratios on average shearing stress,the maximum shearing stress and the maximum shear dilatation displacement of ballast.The results show that both the coal ash fouled ballast and the sand fouled ballast result in poor shear mechanical characteristics of ballast bed.And the effects of coal ash is larger than sand in terms of reducing the shear behavior of ballast bed.关键词
散体道床/道床脏污/直剪试验/力学性能Key words
ballast bed/ballast fouling/direct shear test/mechanical characteristic分类
交通工程引用本文复制引用
高亮,徐旸,殷浩..脏污材质对散体道床剪切力学性能影响的试验研究[J].北京交通大学学报,2017,41(1):1-6,6.基金项目
国家自然科学基金重点项目(U1234211) （U1234211）
国家自然科学基金面上项目(51578053,51578055) （51578053,51578055）
中央高校基本科研业务费(C15RC00120) （C15RC00120）
北京市科技新星计划(XX2013012)National Natural Science Foundation of China(U1234211,51578053,51578055) （XX2013012）
Fundamental Research Funds for the Central Universities(C15RC00120) （C15RC00120）
Beijing Nova Program(XX2013012) （XX2013012）
