Results 41 to 50 of about 967 (218)

Railway superstructure for high-speed rails [PDF]

, 2023
The construction of the track is solved as a conventional (with track ballast) or as a ballastless track (without track ballast). When deciding on the choice of the most suitable track design for high-speed rail, it is necessary to emphasize that with ...
Kruntorád, Jan, Tomaschko, Ondřej, Týfa, Lukáš   +2 more
core   +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

Dynamic Analysis of CRTS II Ballastless Track-Vehicle System Based on Moving Unit Method

Applied Sciences, 2023
On account of the influence of the discontinuity of CRTS II ballastless track slabs and the discrete support of track pads on the high-speed rail vehicle-ballastless track system, a vibration analysis calculation model of the ballastless track-vehicle ...
Tuo Lei, Jianxiang Xu, Longxiang Xu, Tingting Jin, Guangsen Wang   +4 more
doaj   +1 more source

Fully three-dimensional analysis of high-speed traintracksoil-structure dynamic interaction [PDF]

, 2010
In this paper, a general and fully three dimensional multi-body-finite element-boundary element model, formulated in the time domain to predict vibrations due to train passage at the vehicle, the track and the free field, is presented.
Domínguez Abascal, José, Galvín, Pedro, Romero Ordóñez, Antonio   +2 more
core   +1 more source

Study on the basic mechanical characteristics of CRTS III slab ballastless track [PDF]

Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering, 2015
In order to study on the basic mechanical characteristics of CRTS III type slab ballastless track structure, a product of independent research and development of China, we have established the spatial mechanical model of elastic and non-elastic cushion of CRTS III type slab ballastless track based on the large universal finite element software ANSYS ...
Dapeng Zeng, Xianfeng He, Bin Liu, Bin Wu, Zhiping Zeng, Kunteng Zhu   +5 more
openaire   +1 more source

Effects of Redispersible Polymer Powder on Mechanical and Durability Properties of Preplaced Aggregate Concrete with Recycled Railway Ballast [PDF]

, 2018
The rapid-hardening method employing the injection of calcium sulfoaluminate (CSA) cement mortar into voids between preplaced ballast aggregates has recently emerged as a promising approach for the renovation of existing ballasted railway tracks to ...
A Qudoos, ACI Committee 304, ACI Committee 318, ASTM C109, ASTM C192, ASTM C39, ASTM C469, ASTM C666, ASTM C78, B Persson, E Sakai, F Shaker, H Choi, IW Lee, IW Lee, J Li, JA Rossignolo, JB Kardon, JF Muñoz, JH Kim, JK Norvell, JY Choi, K Kim, K McNeil, K Murao, Korean Standards Association, Korean Standards Association, L Jun, LK Aggarwal, M Wang, MF Najjar, P Galvín, R Wang, S Liu, S Miura, SY Jang, THK Kang, Y Bezin, Y Ohama, Y Zhang, Z Su   +40 more
core   +1 more source

Research on Mechanical Performance of CRTS III Plate-Type Ballastless Track Structure under Temperature Load Based on Probability Statistics

Advances in Civil Engineering, 2019
CRTS III (China Railway Track System III) slab ballastless track structure is one of the high-speed railway ballastless track structures which has Chinese independent intellectual property rights.
Zhiwu Yu, Ying Xie, Xiuquan Tian
doaj   +1 more source

Vertical Random Vibration Analysis of Track-Subgrade Coupled System in High Speed Railway with Pseudoexcitation Method [PDF]

, 2016
In order to reduce the ground-borne vibration caused by wheel/rail interaction in the ballastless track of high speed railways, viscoelastic asphalt concrete materials are filled between the track and the subgrade to attenuate wheel/rail force.
Jiangang Shen, Jingchao Zang, Shunhua Zhou, Xiaoshan Liu, Xiaoyun Ma, Xinwen Yang   +5 more
core   +1 more source

Vertical Nonlinear Temperature Gradient and Temperature Load Mode of Ballastless Track in China

Mathematics, 2022
In the process of heat exchange with the external environment, the internal temperature of ballastless track structure presents a nonlinear distribution.
Bin Yan, Ruiqi Cheng, Haoran Xie, Xiangmin Zhang   +3 more
doaj   +1 more source

Railway superstructure for high-speed rails [PDF]

, 2021
The construction of the track is solved as a conventional (with track ballast) or as a ballastless track (without track ballast). When deciding on the choice of the most suitable track design for high-speed rail, it is necessary to emphasize that with ...
Kruntorád, Jan, Tomaschko, Ondřej, Týfa, Lukáš   +2 more
core   +1 more source