Numerical analysis of high-speed railway slab tracks using calibrated and validated 3D time-domain modelling

Abstract Concrete slabs are widely used in modern railways to increase the inherent resilient quality of tracks, provide safe and smooth rides, reduce maintenance frequency. In this paper, elastic performance a novel slab trackform for high-speed is investigated using three-dimensional finite element modelling Abaqus. It then compared ballasted track. First, track models developed replicate full-scale testing sections. Once calibrated with experimental results, model against results. The extended create linear dynamic models, considering geodynamics, simulating train passages at various speeds, which Ledsgård documented case was validate models. Trains travelling low high speeds analysed investigate deflections wave propagation soil, issues associated critical speeds. Various loading methods discussed, most practical approach retained described. Moreover, correlations made between geotechnical parameters rail conventional standards. found that same ground condition, considerably smaller than those while they show similar behaviour