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提出了高速铁路道床结构的理论模型:道床结构是道碴单元体分子间具有摩擦力和变形能而没有吸引力的弹性变形体。从试验得出:道床结构的弹性变形与道碴材质的硬度和耐磨性成正比;不同级配道碴组成的道床结构的弹性是不一样的;道碴中多余的灰石粉会使道床结构的弹性变形变差。
A theoretical model of ballast bed structure for high-speed railway is proposed. The ballast bed structure is an elastic deformation body with unattractive friction and deformation energy of ballast elements. It is concluded from the test that the elastic deformation of ballast bed structure is proportional to the hardness and wear resistance of ballast material; the elasticity of ballast bed structure composed of ballast of different grade is not the same; excess ash powder in ballast will make ballast bed structure The elastic deformation worse.