Abstract: This paper presents the methodology developed for the use of continuous vertical track deflection measurements from a moving loaded rail car to map the subgrade condition along a railway line. This analysis of deflection ...

Abstract: This paper presents the quantification of the impact of subgrade stiffness on the prevalence of track geometry defects and degradation of track quality indices (TQIs). The data included in this study come from two high-traffic ...

Abstract: This paper presents a methodology for quantifying the effectiveness of different methods used to improve the railway track performance on soft subgrades. This methodology consists of quantifying the changes in track stiffness ...

Abstract: High variability in the results of laboratory tests with peat poses difficulties in the application of the classic consolidation theory to the prediction of settlement in the field. This article presents a formulation ...

Abstract: The mechanisms that result in the settlement of structures constructed on peat foundations have been the subject of numerous investigations. A recent study of the behavior of the peat subgrade showed that gas bubbles within ...

Abstract: Dynamic load factors (ϕ) relate the magnitude of vertical wheel-to-rail loads in operation (dynamic loads) to static loads resulting from the weight of the rail car and its contents, as a function of train speed. The ϕ ...