• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 25 Issue 2
Mar.  2012
Turn off MathJax
Article Contents
 , JING Guoqing, FENG Kun, GAO Liang, WANG Jun, . DEM Simulation of Ballast Degradation and Breakage under Cyclic Loading[J]. Journal of Southwest Jiaotong University, 2012, 25(2): 187-191. doi: 10.3969/j.issn.0258-2724.2012.02.003
Citation:  , JING Guoqing, FENG Kun, GAO Liang, WANG Jun, . DEM Simulation of Ballast Degradation and Breakage under Cyclic Loading[J]. Journal of Southwest Jiaotong University, 2012, 25(2): 187-191. doi: 10.3969/j.issn.0258-2724.2012.02.003

DEM Simulation of Ballast Degradation and Breakage under Cyclic Loading

doi: 10.3969/j.issn.0258-2724.2012.02.003
Funds:

井国庆(1979-),男,讲师,博士,研究方向为铁路、公路路基安全性与稳定性,电话:010-51683909,E-mail:gqjing@bjtu.edu.cn

  • Received Date: 12 Jul 2011
  • Rev Recd Date: 22 Sep 2011
  • Publish Date: 25 Apr 2012
  • In order to reflect the micro-mechanism of ballast-sleeper interaction and the process of ballast breakage, a 3-D ballast-sleeper model based on the discrete element method (DEM) was established, and ballast degradation and breakage under cyclic loading were simulated. In this model, irregular ballast particles are modeled by clusters, they are divided into two kinds, i.e., unbreakable and breakable, and ballast is respectively subjected to monotonic and cyclic loads. The research results show that under the same load, contact force between ballast and sleeper is larger when the ballast is loaded than that when it is unloaded. The crushed clusters mainly appear underneath the sleeper, particle crushing is a major factor for sleeper settlement, and the sleeper settlement increases when ballast strength reduces.

     

  • loading
  • [1 INDRARATNA B, SALIM W. Mechanics of ballasted rail tracks: a geotechnical perspective[M. London: Taylor Francis/Balkema, 2005: 3-4.      [2 雷晓燕. 道床极限承载力的有限元分析[J. 铁道学报,1992,14(1): 56-61.
         LEI Xiaoyan. A finite element analysis on the ultimate load of ballast[J. Journal of the China Railway Society, 1992, 14(1): 56-61.      [3 SHAER A. Permanent settlement analysis of ballasted railway tracks: dynamical approach[D. Paris: National School of Bridges and Roads, 2002.      [4 ANDERSON W F, KEY A J. Model testing of two-layer railway track ballast[J. Journal of Geotechnical and Geo-environmental Engineering, 2000, 126(4): 317-323.      [5 AZMA . Numerical study of polyhedron granular material: quasi-static rheology, tamping applica-tion[D. Montpellier: Universit Montpellier, 2007.      [6 TUTUMLUER E. Aggregate shape effects on ballast tamping and railroad track lateral stability[C∥Proceedings of AREMA. Louisville, KY: American Railway Engineering and Maintenance of Way Associa-tion, 2006: 17-20.      [7 LOBO-GUERRERO S, VALLEJO L E. Discrete element method analysis of rail track ballast degradation during cyclic loading[J. Granular Matter, 2006, 8(3/4): 195-204.      [8 LU M, McDOWELL G R. The importance of modelling ballast particle shape in the discrete element method[J. Granular Matter, 2007, 9(1/2): 69-80.      [9 中华人民共和国铁道部. TB/T21402008 铁路碎石道砟[S. 北京:中国铁道出版社,2008.      [10 LIM W L. Mechanics of railway ballast behaviour[D. Nottingham: Nottingham University, 2004.     [11 Itasca Consulting Group Inc. PFC2D user's manual: version 3.1[M. Minneapolis, MN: Itasca Consulting Group Inc., 2006: 49-57.     [12 CUNDALL P A, STRACK O D L. A discrete numerical model for granular assemblies[J. Geotechnique, 1979, 29(1): 47-65.     [13 JING G Q. DEM simulations of ballast under cyclic traffic loading[D. Rennes: Institute National des Sciences Appliques de Rennes, 2009.     [14 ASPREY J D. Cost effective maintenance of track[C∥Automatic Track Top and Alignment. London: Railway Industries Association, Fourth Track Sector Course, 1992: 174-176.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Article views(1451) PDF downloads(531) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return