陈锦祎,陈志波,谢永宁,陈前

• 1:福州大学紫金地质与矿业学院岩土与地质工程系
• 2:地质工程福建省高校工程研究中心
• 3:自然资源部丘陵山地地质灾害防治重点实验室
• 4:福建省水利水电科学研究院

摘要(Abstract)：

基于边界面次塑性模型，简化了模型原始加载和重加载的关系，减少了模型参数，提供了一种适用于描述砂土单向荷载和循环荷载作用下应力路径和应力-应变关系的方法。引进状态参数，从而可用一套参数统一描述不同密度砂土的力学行为。使用Mathematica软件进行简化边界面模型的单元测试，并与试验数据进行对比。结果表明：此简化边界面模型能合理模拟土体复杂的力学行为，包括土体的临界状态、单向和循环荷载下体积变形的变化、应力-应变关系、围压的变化等。

关键词(KeyWords)： 砂土;边界面模型;剪胀关系

Abstract:

Keywords:

基金项目(Foundation): 福建省水利厅科技计划项目（编号：MSK201907）

作者(Author): 陈锦祎,陈志波,谢永宁,陈前

DOI: 10.14188/j.1671-8844.2024-03-005

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