论文部分内容阅读
介绍一个新发展的三维弹粘塑性本构模型和它在软土有限元固结分析中的应用。在有限元固结分析中，变化蠕变参数Ψ／Ｖ，渗透系数ｋ和粘土厚度ｈ三关键参数来研究对变形，孔隙水压力的影响。本文特意研究孔隙水压力的变化。在其它条件相同下，有蠕变性质的土的孔隙水压力比无蠕变的土的孔隙水压力要高。蠕变有可能导致孔隙水压力不降反增。此被称为蠕变效应。对蠕变效应及其与ＭａｎｄｅｌＣｒｙｅｒ效应的区别有详细的解释和讨论。
A new 3D visco-visco-plastic constitutive model is introduced and its application in finite element analysis of soft clay. In the finite element consolidation analysis, the key parameters of the creep parameters Ψ / V, permeability coefficient k and clay thickness h were studied to study the effect on deformation and pore water pressure. This paper specifically studies the pore water pressure changes. Under other conditions, the pore water pressure of creep soil is higher than the pore water pressure of creep free soil. Creep may cause pore water pressure does not fall down. This is called creep effect. The creep effect and its difference with the MandelCryer effect are explained and discussed in detail.