for dynamic analyses of railway track structures, the algorithm of solution is very important. for estimating the important problems in the railway tracks such as the effects of rail joints, rail supports, rail modeling in the nearness of bridge and other problems, the models of the axially beam model on the elastic foundation can be utilized. for studying the effects of axially beam on the ela...

(Received: November 21, 2013; Accepted: November 29, 2013) The objective of this paper is to control the railway tracks by using anti-collision techniques. The model of railway track controller is designed by using 8952 microcontroller to avoid railway accidents. When we go through the daily newspapers we come across many railway accidents occurring at unmanned railway crossings. This is mainly...

Track Maintenance is crucial for the safe and efficient of railway transportation. After analysis of foreign management techniques for high-speed railway track maintenance, combined with the characteristic of passenger dedicated line in China, this paper has explored new ideas of the information system of passenger dedicated line track maintenance and at the same time researched on the theory a...

This paper deals with the use of Petri nets in modelling railway network and designing appropriate control logic for it to avoid collision. Here, the whole railway network is presented as a combination of the elementary models – tracks, stations and points (switch) within the station including sensors and semaphores. We use generalized mutual exclusion constraints and constraints containing the...

This paper deals with the use of Petri nets in modelling railway network and designing appropriate control logic for it to avoid collision. Here, the whole railway network is presented as a combination of the elementary models – tracks, stations and points (switch) within the station including sensors and semaphores. We use generalized mutual exclusion constraints and constraints containing the...

The vertical vibration and transmission characteristics of ballast are key factors that affect the dynamic stability railway track structures control settlement ballasted beds. Therefore, following study was conducted to explore this topic. Firstly, through an impact hammer test on a sensor with embedding chip, data accurately measured. single can be studied. Then, at different positions in sta...

Purpose. Investigate and establish the relationship between track geometry measurements weather conditions to determine parameters that influence lifetime of railway tracks’ superstructure system. The study ballasted beds tracks is very important for operation maintenance in case main lines, industrial sidings mine transport. Methodology. Determination annual load selected section based on regu...

The shear resistance at the sleeper–ballast interface of a ballasted track is an important contributor in maintaining stability under faster and heavier axle loads where ballast undergoes significant lateral sliding. Different types interfaces based on type sleeper arrangements, such as concrete sleepers, timber pads (USPs) attached to sleepers influence railway tracks. Therefore, this study de...

Abstract The procedure presented in this work aims at providing a framework for studying settlement of ballast zones with stiffness variation the railway track support. proposed results from expanding an existing infinite periodic model to account variations foundation. Ballast is simulated via linear lattice, whose dynamic response differs that continuum. expanded composed three regions: left ...

This paper proposes a three-dimensional fully-coupled numerical model intended for the simulation of dynamic behavior ballasted railway tracks under real excitation. It is employed to reproduce response French site located at high-speed line connecting two regions Bretagne and Pays de la Loire. The equation motion solved in time domain by means finite difference method which rails sleepers are ...