软土地基Biot固结损伤有限元分析程序的实现

Realization of a Biot consolidation damage FEM program of softclay ground

论述了一软土地基损伤有限元分析程序的实现.该程序引入一个改进的土结构损伤模型描述土体结构的演化发展,并通过与太沙基一维固结问题的结果相比较来检验程序固结问题的功能,与单向压缩试验的结果相比较来检验程序分析弹塑性损伤问题的功能.检验发现有限元计算值与太沙基一维固结理论计算值、单向压缩试验值吻合较好.

A Biot consolidation damage FEM program of softclay ground is addressed, in which an updated elastic-plastic damage model to descibe the evolvement of soil structure is applied. Comparing with one-dimensional Terzagihi's consolidation theory to check up its consolidation function and one dimensional compression test to verify its elastic-plastic function, the result is reasonable. The FEM program can be easily popularized and applied to engineering.