surface layer of subgrade bed 基床表层
Subgrade bed design 基床设计
thickness of subgrade bed 基床厚度
structure of subgrade bed 基床结构
railway subgrade bed disease 路基基床病害
strengthening the subgrade bed 加固路基基床
bed roadbed subgrade of highway 铁路和公路的基础
Load-bearing characteristics and deformation problem Will become the main factors in designing on subgrade bed of high-speed railway.
承载特性和变形问题等便成为高速铁路基床设计所考虑的重要控制因素。
参考来源 - 高速铁路基床填料物理力学特性试验分析·2,447,543篇论文数据，部分数据来源于NoteExpress
Research methods:The main research contents include:(1)the experimental research of dynamic characteristics of subgrade bed of ballastless track;
研究方法：主要研究内容包括：（1）无碴轨道路基基床动力学特性试验研究；
There are not only enough subgrade bed strength, but also appropriate subgrade bed stiffness to satisfy with the safety and comfort under the high-speed train loading.
基床不仅需要具有足够强度以承受高速列车荷载动力作用，而且需要具有合适刚度与以满足高速列车行驶时安全舒适运行的要求。
Train velocity has little influence on the dynamic stress and dynamic deformation of subgrade bed, but has obvious influence on vibrating velocity and vibrating acceleration.
列车运行速度对振动速度、振动加速度的影响比对动应力、动变形的影响更显著。
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