碎石道床的组构描述

A Discription of Microstructures of Ballast Bed

散粒体的宏观力学行为是由其细观组构所决定的，基于此，本文对影响铁路碎石道床力学特性的几种主要细观组构进行了较为详尽的统计描述，在碎石道床的离散介质理论分析方面进行了探讨。

The mechanical behaviour of granular materials depends on its microstructures. Some microstructural parameters which strongly affect the mechanical behaviour of ballast bed are described.This is an attempt to adopt the theory of granular materials in the researches on mechanics of ballast bed.