水道港口2025，Vol.46Issue(2)：243-249,267,8.
基于平板载荷试验的海相软土修正剑桥模型参数反演
Inversion of parameters of Modified Cam-Clay model for marine soft soil based on plate load test
摘要
Abstract
Marine soft soil exhibits characteristics such as high compressibility,low strength,high sensitivity and low permeability,which significantly impact underground engineering construction in coastal areas with deep soft soil.The modified Cambridge soil model has become an important tool for geotechnical numerical analysis due to its ability to simulate the mechanical behavior of marine soft soil well.However,the error caused by improper selection of model parameters was often greater than the error caused by the model itself.This paper proposed a numerical inversion analysis method based on plate load test results combined with PLAXIS 3D finite element calculation and Python secondary development to obtain effective parameters for the Modified Cam-Clay model.This method was used to study parameter variations in marine soft soil around Qingdao Jiaozhou Bay.The results indicate that parameter M ranges from 1.14 to 1.39,parameter λ ranges from 0.014 to 0.056,and parameter κ ranges from 0.005 0 to 0.006 0.关键词
修正剑桥模型/平板载荷试验/参数反演/海相软土/敏感性分析/PLAXIS 3D软件Key words
Modified Cam-Clay model/plate load test/inversion of parameter/marine soft soil/sensitivity analysis/PLAXIS 3D分类
建筑与水利引用本文复制引用
李鹏,吴刚,杨俊杰,刘强,吴邵芳,王殿斌..基于平板载荷试验的海相软土修正剑桥模型参数反演[J].水道港口,2025,46(2):243-249,267,8.基金项目
国家自然科学基金面上项目(52078474,51779235) （52078474,51779235）
青岛市勘察测绘研究院科研项目(2022014) （2022014）
