Vibrodiagnostics and dynamic operation of reinforced concrete sleepers under the influence of moving load

Vidrodiagnostics is one of the methods of monitoring and diagnosing the railroad track for defects and damages. Determination of vibration (dynamic) impact on the track from the rolling stock load is possible with the help of vibration sensors - velocimeters and accelerometers. The article presents the results of full-scale (operational) tests of reinforced concrete sleepers with different types of bonding on three sections of the railroad mainline. The dependences between the maximum amplitudes of vibration displacement, vibration velocity are determined. The purpose of this study was to identify the main causes of defects in reinforced concrete sleepers by vibrodiagostic method, to identify the greatest attenuation of vibrations of the track structure, damping of vibration from passing rolling stock and determination of the best dynamic operation of the track. This research will help further technological and economic development of railroads, as well as maintain safe operation of the main network of the Republic of Kazakhstan.