A Study on the Optimized Cross-section of Embedded Rail System

Abstract

An ERS(Embedded Rail System) has large effect on the load distribution because of its continuous rail support. Therefore, stress level of the track components is lower than that of other system. Though the ERS has various advantages, the application example in a domestic railway is rarely applied and the studies for the application of high-speed service lines are insufficient. In this paper, the vertical stiffness is derived from laboratory test and the optimized cross-section is also derived from the analytical analysis as a basic study for application of ERS on the high-speed service lines.

Evaluation of Structural Stresses of Mountain-Embedded Railway Systems

“…Consequently, research in this domain has predominantly focused on ensuring operational safety and providing passenger comfort. So far, research related to ERSs has included analyses of the various factors, specifically, wheel-rail impact in an embedded rail system [4], the dynamic behavior between the railway track system and vehicles [5,6], and the optimized cross-section of the ERS track and its vertical stiffness [7]. In addition, the attachment performance and modeling methods used for the structural analysis of synthetic resin materials for fastening rails to concrete panels have been studied [8,9].…”

“…However, only a few cases exist wherein ERSs have been applied to mountain railway systems, and research on the safety profile and behavioral responses of ERS on installed rack rails has been limited. Mountain-ERSs, with respect to this project, are underresearched [1][2][3]7]. A study has been conducted on the application of precast concrete panels in high-gradient mountain railways [1].…”