Take double parameters foundation model to improve Winkler model, and use finite difference method to resolve linear basis under columns and get linear equations which could be easily used in works.
Based on pile-to-pile interaction factors, the transfer matrix method is used to establish the dynamic model of partially embedded pile groups, while the pile is treated as dynamic Winkler beam.
充分考虑了被动桩与土体的共同作用，基于桩—桩相互作用因子的叠加法，建立了部分埋入群桩的动力模型。
3
For example foundation coefficient method simplifies complicated factors such as interaction between soil and pile as pure foundation coefficient through winkler assumption.