摘要
本文基于离心机试验，研究了强震作用下碎石土边坡的动力响应特性。通过模拟不同震级和边坡角度，分析了碎石土在强震条件下的变形、加速度及应力变化。试验结果表明，震动频率、震动幅度和边坡稳定性之间存在显著关系。随着震动的增强，边坡变形显著增加，破坏模式呈现出与土体粒径、密实度等因素密切相关的特点。试验结果为优化碎石土边坡的抗震设计提供了理论依据，同时为灾后恢复工作提供了实验数据支持。
关键词： 碎石土；边坡；强震作用；离心机试验；动力响应
Abstract
This study investigates the dynamic response characteristics of gravel soil slopes under strong seismic loads through centrifuge tests. By simulating different earthquake magnitudes and slope angles, we analyzed deformation, acceleration, and stress variations in gravel soil under intense seismic conditions. Experimental results demonstrate a significant correlation between vibration frequency, amplitude, and slope stability. As seismic intensity increases, slope deformation becomes more pronounced, with failure modes closely related to soil particle size and density. These findings provide theoretical foundations for optimizing seismic-resistant design of gravel soil slopes and offer experimental data support for post-disaster reconstruction efforts.
Key words： Crushed stone soil; Slope; Strong earthquake action; Centrifuge test; Dynamic response
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