西北工程技术学报2025，Vol.24Issue(4)：305-311,7.DOI:10.26974/j.cnki.XBGC.2025.04.003
统一状态参数模型的矩阵形式及其在饱和黄土中的应用
The Matrix Form of the Clay and Sand Model and Its Application in Saturated Loess
摘要
Abstract
By constructing the matrix expression of the clay and sand model(CASM),the influencing factors of plastic volumetric strain and plastic shear strain in the stress-strain relationship can be clearly elucidated.The matrix representations of the CASM under four typical stress paths are derived,facilitating a deeper understanding of the significance and roles of various variables in critical state soil mechanics.This study compares the triaxial test results of saturated loess with the computational outcomes of the CASM,validating the model's applicability to saturated loess under four typical stress paths.The results show that the experimental stress-strain curves under four conventional triaxial stress paths closely align with the model's calculations.The matrix expression of the CASM aids in the validation,analysis,and application of triaxial tests,effectively capturing the mechanical behavior of saturated loess.关键词
黏土和砂土统一状态参数模型(CASM)/饱和黄土/应力路径/应力-应变关系Key words
clay and sand model(CASM)/saturated loess/stress paths/stress-strain relationship分类
建筑与水利引用本文复制引用
赖欲儒,马文国,张刚,董旭光,马凡,周波..统一状态参数模型的矩阵形式及其在饱和黄土中的应用[J].西北工程技术学报,2025,24(4):305-311,7.基金项目
宁夏自然科学基金重点项目(2024AAC02023,2023AAC02024) （2024AAC02023,2023AAC02024）
国家自然科学基金项目(51768059,52369020) （51768059,52369020）
