Soil-Pile Interaction in Deep Layered Marine Sediment subject to Seismic Excitation

TLDR: In this paper, the authors used validated finite element techniques to simulate the seismic behavior of piled foundations embedded in multilayered vibration sensitive soils and found that the seismic response of pile foundations in vibration sensitive soil profiles is significantly affected by the behaviour of supporting soil.

Abstract: Contrary to what is normally assumed, neither the response of the pile nor the response of the ground are independent of each other when subject to seismic loads. In the seismic design of buildings, dynamic response of a structure is determined by assuming a fixed base on sub-grade and neglecting the physical interaction between foundation and soil profile in which it is embedded. However, the seismic response of pile foundations in vibration sensitive soil profiles is significantly affected by the behaviour of supporting soil. This research uses validated finite element techniques to simulate the seismic behaviour of piled foundations embedded in multilayered vibration sensitive soils.