【摘要】 从试验研究、模型和本构关系研究两大部分入手,介绍了路基土在动荷载作用下的塑性及回弹行为、安定行为与临界应力水准及其判别、应变速率、固结沉降与固结度、动力本构模型、孔压模型、应变软化、应变硬化等基本特征,对比分析了国内外对路基土动荷载下力学行为研究的最新进展,总结了当前路基土研究中存在的主要问题,并提出了今后研究的发展趋势。更多还原

【Abstract】 This paper synthesizes the mechanic behavior and character of subgrade soil under dynamic load all over the world.It introduces the research status in quo of the mechanic behavior and character of subgrade soil under dynamic load depended on experimentation and constitutive model.Then,it points out the major problems in the research of mechanics behavior and character of subgrade soil under dynamic load recently.Finally,it points out the direction of development of the subgrade soil.更多还原