With the rapid development of rail transit, developing more effective vibration and noise reduction methods has become a significant challenge in rail transit system. In the case of high-speed train operation, the traditional track vibration in underground railway is not suitable, because the track must provide reliable support and achieve the vibration reduction effects at the same time. Therefore, the periodic structure of phononic crystal is introduced into the design of track slab, and the periodic layered track slab is proposed. In this study, the train-track-tunnel-foundation-building interaction model was established based on vehicle- track coupling dynamics theory and finite element method (FEM), in which the periodic layered track slab is established as a multi-layer solid element and periodically distributed along the thickness direction. The model is solved using the hybrid integral strategy. Furthermore, the vibration characteristics of each position using periodic layered slab track were calculated and analyzed, and are compared with the calculation results using ordinary slab track.

CICTP