The significance of source-receiver interaction in the response of piled foundations to ground-borne vibration from underground railways

The numerical prediction of vibration in buildings due to underground railways involves modelling many physical phenomena. Not least these is the dynamic soil-structure interaction that exists between various elements system. majority existing models assume railway tunnel and building’s foundation negligible, with two sub-systems behaving as though they are uncoupled. This paper presents some initial results from a three-dimensional model accounts for through-soil coupling piled foundation. based on pipe-in-pipe model, circular, longitudinally invariant excited by wheel-rail roughness, coupled boundary-element using an iterative wave-scattering approach. Initial test cases, involving single piles pile-groups, highlight new details tunnel-pile pile-pile interaction, well predicting effect ground levels.