Results 31 to 40 of about 673,431 (151)

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
doaj   +1 more source

Simulation Study on Vertical Deformation of CRTS III Slab Track under Ambient Temperature and Its Upgrade to “Green Maintenance”

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, Yanyun Luo, Guosheng Lv, Yongliang Xiong   +3 more
doaj   +1 more source

Study on the threshold for superposed deformation of simply supported bridge creep and track slab upwarp in high-speed railway

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, Mangmang Gao, Fei Yang, Zilong Wei, Jingjing Yang   +4 more
doaj   +1 more source

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, Qi Xiang, Boyang Li, Zhaoyang Li, Madalina Dumitriu   +4 more
wiley   +1 more source

Experimental Study on the Dynamic Characteristics of a New Long‐Short Pile Composite Foundation under Long‐Term Train Load

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, Wei Guan, Kan Han, Hong-gang Wu, Shou-quan Zhao, Xu Liu, Yaobing Zhao   +6 more
wiley   +1 more source

Incompatible thermal deformation of interlayers and corresponding damage mechanism of high-speed railway track structure

High-Speed Railway, 2023
In the service period, the instability of ballastless track bed are mostly related to the damage of interlayers which are mainly resulted from the incompatible thermal deformation of interlayers.
Guotang Zhao, Lei Zhao, Yu Liu
doaj   +1 more source

Ballastless track support deterioration evaluation using machine learning [PDF]

, 2023
Ballastless tracks have been widely used for highspeed rail systems globally since their maintenance is relatively minimal. However, support deterioration right beneath the inbetween slabs’ connectors has been usually reported and quite well known in the
Sresakoolchai, Jessada, Kaewunruen, Sakdirat; id_orcid, Li, Ting   +2 more
core   +1 more source

Investigation on Effect of Reflective Coating on Temperature Field of CRTS Ⅱ Slab Ballastless Track under Sunlight

, 2023
The internal temperature variation of ballastless track is very complicated under the effect of a sunlit environment, and there are serious transverse and vertical temperature gradients, which will cause cracking and deformation of the structure. In this
Jun Tian, Xiankai Quan, Wenhua Guo, Weiguo Zhang   +3 more
core   +1 more source

Results of tests of ballastless track designs on the Test Loop of JSC “VNIIZhT”

Вестник Научно-исследовательского института железнодорожного транспорта, 2017
In December 2016 at the Test Loop of JSC “VNI-IZhT” comparative testing of four types of ballastless track designs (BVSP) - LVT (RZDstroy, Russia), FFB (MaxBögl, Germany), NBT (Alstom, France), EBS (Tines, Poland) - have been completed.
A. V. Savin, V. V. Tret’Yakov, V. N. Kaplin, A. V. Petrov, K. I. Tret’Yakov   +4 more
doaj   +1 more source

Research on the Influence of Geotextile and Elastic Cushion on the Static Performance of Ballastless Track on Long-Span Cable-Stayed Bridges

Applied Sciences, 2023
The elastic cushion is mostly used between the layers of ballastless tracks laid on a large-span cable-stayed bridge with a main span of more than 300 m.
Jiasheng Cai, Jinjie Chen, Jianxi Wang, Xianfeng Shi, Rui Wang, Yadi Yang   +5 more
doaj   +1 more source