岩土力学2009，Vol.30Issue(7)：1904-1908,5.
Gibson大变形固结理论的一种连续介质力学表述
A continuum mechanics-based description for Gibson's finite-strain consolidation theory
摘要
Abstract
A novel continuum mechanics-based model is presented to overcome the one-dimensional limitations of Gibson's finite-strain consolidation theory. The second Piola-Kirchhoff stress and Green strain are used to replace Lagrangian stress and void ratio respectively in Gibson's theory. The proposed model can take into account of both the geometrical nonlinearity and the material nonlinearities of soil's compressibility and permeability; and it has the advantange of multi-dimensional generalization. Based on the experimental data from engineering practice, the finite-strain coefficient of consolidation and the coefficient of convection are investigated. The results show that the convection rate decreases with the increase of strain, indicating that the dead weight effects tend to diminish during finite-strain consolidation process.关键词
Gibson大变形固结理论/连续介质力学/Lagrange描述/控制方程/对流Key words
Gibson's finite-strain consolidation theory/ continuum mechanics/ Lagrangian description/ governing equation/ convection分类
建筑与水利引用本文复制引用
袁大军,丁洲祥,朱合华,蒋明镜..Gibson大变形固结理论的一种连续介质力学表述[J].岩土力学,2009,30(7):1904-1908,5.基金项目
国家自然科学基金项目(No. 50708077) （No. 50708077）
北京交通大学科技基金资助项目(No. 2008RC025). （No. 2008RC025）
