In order to investigate the stress characteristics of ballastless track under high latitude, and multi-source multi-field extreme temperature conditions. Based on finite element theory elastic foundation beam–plate principle, a model considering limit convex abutment, gel resin, interlayer bonding is established. The mechanical slab–CAM layer state, mortar separation, freeze–thaw degradation fo...

Purpose: Steel-spring-floating slab tracks are widely used in subway lines. It is necessary to analyze and study the vibration damping transmission characteristics of steel-spring-floating track various frequency bands under action train loads. Method: A ordinary monolithic tunnel sites with similar line conditions on straight curved segments were selected. The signals rail, bed, walls collecte...

The design of high-speed railway lines involves geotechnical challenges, one which is the risk dynamic track amplification, for example on sections where train speed approaches track-ground critical speed. In these cases, soil strains increase significantly with an in speed, far exceeding limits linear elastic behaviour. This can result a non-linear reduction stiffness. To better understand thi...

This study presents the results of an experimental program to investigate the effectiveness of an innovative combined FRP technique using combination of externally bonded (EB) FRP fabrics and near surface mounted (NSM) FRP rods for flexural strengthening of existing reinforced concrete (RC) two-wayslabs with low clear cover thickness. Three full-scale RC slabs (1500×1500×120 mm) were tested und...

Many studies have shown that the rail corrugation on small radius curve section of subway floating slab track is serious. And it seems to be different from common track. The structure must play an important role in generation and development corrugation. This paper measured a line Tianjin, including 2 structures, analyzed data by using international evaluation acceptance indexes results show in...