Results 31 to 40 of about 643,218 (189)
Influence of Reflective Coating on Temperature Field and Temperature Effect of CRTS III Slab Ballastless Tracks on Bridges. [PDF]
Materials (Basel), 2023 To minimize the adverse effects of high temperatures on the service performance of track structures, research on the application of reflective coatings on track structures is urgently needed.
Song L, Wu L, Cui C, Yu Z.
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Effects of Performance Variations in Key Components of CRTS I Slab Ballastless Track on Structural Response Following Slab-Replacement Operations. [PDF]
Materials (Basel)Slab-replacement operations are crucial for restoring deteriorated CRTS I slab ballastless tracks to operational standards. This study investigates the structural implications of the operation by evaluating the strength characteristics and material ...
Wu W, Lu H, He Y, Xia H.
europepmc +2 more sources
Simulation of Delamination Evolution of Slab Ballastless Track under Vertical Impact [PDF]
Shock and Vibration, 2021 During the running of a high‐speed train, the wheel may bounce on the rail due to the track irregularity. The wheel bounce could generate a vertical impact, leading to the initiation and expansion of delamination between layers of the track structure.
Yu Liu +4 more
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Collision derailments on bridges containing ballastless slab tracks [PDF]
Engineering Failure Analysis, 2019 Train derailment on bridges is an infrequent event, yet when it occurs, it's usually catastrophic. These incidents can toss-out part of the derailed train from the bridge deck and collapse whole or a part of the bridge. Understanding the derailment mechanisms of trains on bridges and identifying the dynamic characteristics of bridges subjected to the ...
Ling, Liang +4 more
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Field Tests on Eco-Friendly Railway Precast Concrete Slab
Applied Sciences, 2020 This study focuses on evaluating the field performance of a newly developed eco-friendly precast concrete slab track structure for railway/subway systems in Seoul, South Korea.
Taehoon Koh, Moochul Shin
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Applied Sciences, 2021 In view of the vertical deformation of CRTS III slab ballastless track of high-speed railways under the action of ambient temperature, a simulation model of the temperature field and vertical deformation of CRTS III slab ballastless track was developed ...
Junzhao Zhou +3 more
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Advances in Mechanical Engineering, 2022 Based on long-term inspection data about track geometric irregularity of 32 m-span simply supported girder bridge in China Railway High-Speed for nearly 10 years, it is found that there is continuous periodic track longitudinal level (TLL) with different
Guolong Li +4 more
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Influence of mixture composition on fresh concrete workability for ballastless track slabs [PDF]
E3S Web of Conferences, 2020 There are several factors that affect the fresh concrete workability: water demand and composition of Portland cement, properties of fine and coarse aggregates, presence of superplasticizer and others admixtures, etc. Influence of quantity and fineness of ground quartz additives as well as polycarboxylate-based superplasticizer amount on workability of
Kazanskaya Liliya, Smirnova Olga
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Field Measurement and Energy Analysis of Ground‐Borne Vibration around High‐Speed Railway Viaduct
Shock and Vibration, Volume 2023, Issue 1, 2023., 2023 In order to investigate the vibration characteristics and propagation mechanism of ground vibrations induced by high‐speed train passing through the viaduct, a field experiment is carried out, and the measured data is deeply analyzed. Besides the independent time domain and frequency domain analysis, the continuous wavelet transform (CWT) is performed ...
Yanmei Cao +4 more
wiley +1 more source
Shock and Vibration, Volume 2023, Issue 1, 2023., 2023 Long‐short pile composite foundation (PC‐LSPCF) composed of part‐screw pile and cement‐soil compaction pile is a new railway foundation treatment method, which has been widely used in high‐speed railway construction projects in China. To explore the dynamic characteristics and deformation characteristics of railway PC‐LSPCF under long‐term train loads,
Zhao-rong Zhu +6 more
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