Behavior Characteristics of a Booted Sleeper Track System According to Substructure Deformation

In booted sleeper floating track systems wherein the concrete bed, rail, and are structurally separated, mismatches can occur between substructure owing to deformations. Nevertheless, mutual behavior substructures has not been studied extensively. To address this limitation, effect of uplift subsidence on deformation a boosted system installed in subway box tunnel was analyzed using finite element analysis. A detailed three-dimensional model consisting all components constructed determine interaction rail bed. The sleepers were observed rotate response deformation, their resulting contact conditions bed status accordingly. zones likely tension shear cracking then determined provide focus areas for design maintenance efforts. results study be used improve inspection ensure safety functionality railway tunnels experience or subsidence.