نتایج جستجو برای: slab track

تعداد نتایج: 73684  

Journal: :Transportation geotechnics 2021

The accurate computational modelling of railway systems is crucial for analysis and design, which allows excellent enduring performance such systems. It capable providing the industry with data improving speed, comfort, load capacity reliability. Further, as solutions serve an aid to improve systems, they contribute quality services, social welfare, cost effectiveness sustainability. An importa...

Journal: :Lecture notes in civil engineering 2023

Abstract Guangzhou metro line 1 is one of the first to adopt floating slab track in Chinese mainland, it has been operation for more than 20 years up now. In order obtain vibration reduction performance after long service, systematic field test and laboratory are carried out. The results show that: (1) rubber bearing keeps good appearance. (2) measurement shore hardness elongation at break that...

Journal: :Applied sciences 2023

Surface cracks are typical defects in high-speed rail (HSR) slab tracks, which can cause structural deterioration and reduce the service reliability of track system. However, question how to effectively detect quantify surface remains unsolved at present. In this paper, a novel crack-detection method based on infrared thermography is adopted rail-track slabs. method, thermogram acquired by an c...

Abolfazl Hassani Seyyed Hamed Mada'eni

Ballast as a part of the railway system plays an important role in the operation of the railways and also has a great impact on repair and maintenance activities. Hence most of the repair and maintenance activities in traditional railway systems are due to the defections in the ballast layer and therefore most of the maintenance budget is spent on repairing these defects. These repair and maint...

Journal: :Materials 2021

The purpose of this research was to investigate and improve the accuracy existing slab-track mat (STM) specifications in evaluation vibration reduction effect. static nonlinearity dynamic mechanical characteristics three types STMs were tested, then a modified fractional derivative Poynting–Thomson (FDPT) model used characterize preload frequency dependence. A vehicle–floating slab track (FST) ...

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