Application of Three-Dimensional Dynamic Infinite Elements: Simulation of Dynamic Structure–Foundation Interaction Problems

Numerical simulation of dynamic structure–foundation interaction problems has been an important research topic in many scientific and engineering fields (Zhao et al. 1991, 1992; Zhao and Valliappan 1991, 1993c, e). In terms of a structure–foundation interaction system, the foundation is referred to as the natural or built-up formation of soil, subsoil or rock upon which a building or structure is supported. If a structure is founded on a soft soil foundation, the dynamic structure–foundation interaction problem is also called the dynamic soil–structure interaction problem (Wolf 1985, 1988). For example, the dynamic analysis of an embankment dam–foundation system is a typical dynamic soil–structure interaction problem. Owing to the vast diversity of structural configurations and foundation materials, it is impossible to deal with all the dynamic structure–foundation interaction problems in one chapter.