基于μ-U方程的饱和土壤固结分析

Consolidating analysis of saturated soil based on μ-U form equations

在给出饱和土壤介质固结有限元分析基本方程的基础上，讨论了饱和土 壤固结分析问题。采取μ－Ｕ形式方程对饱和土固结问题进行分析。利用两点 插值格式与加权余量法，建立了以土骨架位移与孔隙水位移为未知量的固结 问题求解方程；由此克服了以往以μ－ｐ形式方程求解该问题的一些不足。已 在微机程序ＤＩＡＳＳ中实现。文末附有算例。

Based on the foundational saturated soil consolidating finite element formulations, the problems in saturated soil consolidating analysis are discussed. The u-U form equations are put forward to solve the consolidating problems. By means of two-point intervalating pattern and weighted residual method, the formulation in which the unknown quantities consist of soil skeleton and porous water displacement is established. The presented work has been implemented in micro-computer program DIASS. At the end, a numerical example is given.