东南大学学报（自然科学版）2026，Vol.56Issue(5)：645-654,10.DOI:10.3969/j.issn.1001-0505.2026.05.001
加载工况下海陆交互相软土硬化土本构模型参数研究
Parametric study on HS model of marine and terrestrial deposit soft soil under loading conditions
摘要
Abstract
Through a series of laboratory tests,the parameters for the hardening soil(HS)model of typical ma-rine and terrestrial deposit soft soil layers were obtained.Combined with a 60 m×30 m in-situ field loading test in Nansha,Guangzhou,a three-dimensional numerical simulation was established to investigate the validity of the constitutive model parameters under loading conditions.It was also compared with the Mohr-Coulomb model and the modified Cambridge model to analyze the selection applicability.The results indicate that the cohesion,modulus of deformation,and failure ratio of the marine and terrestrial deposit soft soil in the Nansha area are lower than those reported in existing researches.The parameters obtained from the tests can more ac-curately reflect the true mechanical properties of the soil layers in this region.The three-dimensional numerical simulation results agree with the actual monitoring values from the field loading tests,indicating that the ob-tained parameters can effectively simulate the actual loading conditions at the site.Compared with the Mohr-Coulomb model and the modified Cambridge model,the HS model exhibits better applicability for the marine and terrestrial deposit soft soil in the coastal transition zone of Nansha,Guangzhou.关键词
海陆交互相软土/硬化土模型/室内试验/数值模拟/加载工况Key words
marine and terrestrial deposit soft soil/hardening soil model/laboratory test/numerical simulation/loading conditions分类
建筑与水利引用本文复制引用
仉文岗,谭贺蒙,刘汉龙,杨文钰,吴志昊..加载工况下海陆交互相软土硬化土本构模型参数研究[J].东南大学学报（自然科学版）,2026,56(5):645-654,10.基金项目
广州地铁集团公司科研委托项目资助项目(JT204-100111-23001) （JT204-100111-23001）
国家资助博士后研究人员计划资助项目(GZC20242129) （GZC20242129）
岩土力学与工程安全全国重点实验室开放基金资助项目(SKLGGES-024015). （SKLGGES-024015）
