多层地基的弹塑性分析

An Elastoplastic Analysis for Multiple Layered Foundation

提出了多层地基的弹塑性力学分析方法 ,该方法建立在严格的数学、力学基础上 ,所推得的泛函求解式子具有可靠、明了的特点。通过有限元离散后 ,归结为一个求自由变量的二次规划问题 ,用所设计的算法进行求解 ,可避开传统迭代法中反复迭代的过程 ,具有高效、优化等特点。此方法可用于多层地基的路面设计以及对地基工作状态进行分析。

A new method to elastoplastic analysis is proposed for multiple layered foundation. It has reliable mathematical and mechanical basis, and the new functional form has more convenient than the traditional energy method. The finite element form of the present formulations is deduced. The problem can be solved by means of the quadratic programming with free variables. It has convergent solutions with fewer base exchanges instead of the common iterative methods. The new approach presented in this paper has efficient and optimum character. It can be used to design rigid pavement with multiple layered foundation, as well as to analyze the operating conditions of the foundation.