DISCRETE SIMULATION OF BALLAST IN SITE BEHAVOUR UNDER CYCLIC LOADING

摘要：

In this paper, ballast-sleeper interaction under different loadings is simulated using a 2D discrete element method (DEM) which is a usual tool for discontinuous rock simulation. In the present paper, we use Voronoi tessellation for producing a set of irregular polygonal ballast particles. UDEC? program is used to simulate ballast-sleeper interaction under cyclic loading and the effects on ballast settlement, force distribution. Results show realistic response of ballast such as progressive cumulative settlement and lateral wall displacement under cyclic load as well as load spreading through ballast layer. It signified that UDEC is a potential tool to simulate mechanical behavior of ballast under More quantitatively accurate results are expected by using 3D particles and introducing contact damage model.

作者: GUOQING JING SAMUEL MASSON JUAN MARTINEZ

作者单位: LMGC (Laboratory of Civil Engineering and Mechanics) EA 3913 INSA de Rennes 35400, France

会议类型: 国际会议

会议名称: The Third International Conference on Nwe Development in Rock Mechanics and Engineering(NDRM2009)(第三届国际岩石力学与工程新进展学术会议)

会议地点: 三亚

会议语种:英文

页码: 151-156

在线出版日期: 2009-05-24（万方平台首次上网日期，不代表论文的发表时间）