铁路碎石道床弹性特性研究初探

Research on the Elasticity of Ballast

利用散粒体介质理论中的机理分析法，建立起理想碎石道床的平均增量弹性本构，并用于分析道床的弹性特性，讨论了孔隙比、粒径、级配。

Taking advantage of the research on the granular materials,the constitutive relations of the idealized ballast are derived.The influences of some parameters,such as void ratio,grain size,grade match and grain shape,on the elasticity of ballast are analyzed.