饱和土体固—液两相介质动力耦合问题有限元解析

FEM Modeling of Dynamic Consolidation and Liquefaction in the Saturated Soil

考虑了土体中土骨架的动态响应与土中孔隙水的渗流固结之间的相互耦合作用，在时间域内利用ＮＥＷＭＡＲＫ 法系统推导了三维固—液两相介质动力响应有限元解析格式与数值分析方法；以引进的大型岩土工程分析软件系统ＦＩＮＡＬ为开发平台，开发出能分析二、三维饱和土体振动固结与振动液化问题的软件系统，弥补了该大型软件的不足。利用日本学者的实验结果对本文的力学模型与分析系统进行了检验与验证。

The dynamic coupling behaviors between the soil skeleton and the pore water due to the dynamic consolidation are modeled and analyzed with the dynamic response theory of the two phases. Based on the Austrian software FINAL, the new software with the consolidation and the dynamic liquefaction behaviors is developed. The mechanic model and the numerical results are testified by the testing results of Sasaki.