Results 111 to 120 of about 947 (221)

Assessment of Track Quality in Trial Test Sections by Spot and Continuous Method

Communications, 2015
The quality of track alignment and track geometry is an essential precondition of safe and economical operation of railway track. The paper provides an analysis of diagnostics of relative track geometry parameters and evaluation of measurement deviations
Michal Smalo, Libor Izvolt
doaj   +1 more source

Benefit of damping in structural concrete for railway structures and track components [PDF]

, 2019
There are two types of modern railway tracks including ballasted and ballastless tracks. Ballasted tracks are optimally designed for suitability to railway operations with train speed less than 250 km/h, while ballastless tracks are more suitable for ...
Goto, Keiichi, Kaewunruen, Sakdirat, You, Ruilin   +2 more
core   +3 more sources

Refined dynamic analysis of three slab tracks on bridge structures under various high-speed train loads

Journal of Low Frequency Noise, Vibration and Active Control
The dynamic performance of three slab ballastless tracks in the China Railway Track System (CRTS), which is supported by a simply supported box girder under various train loads, were comprehensively investigated with refined rigid-flexible coupled models.
Hanlin Liu, Yi Wang, Rui Zhou, Jingmang Xu, Xi Sheng, Fei Xu   +5 more
doaj   +1 more source

Diagnostics of Track Quality of Ballastless Track and Transition Areas in Vicinity of Portals of Tunnel Turecky vrch

Civil and Environmental Engineering, 2016
The paper deals with the partial results of diagnostics of experimental sections of ballastless track Rheda 2000® and transition areas between ballastless and ballasted track structure around portals of tunnel Turecky vrch after six measurement cycles ...
Šmalo Michal
doaj   +1 more source

Безбалластное мостовое полотно на ВСМ [PDF]

, 2019
For the English abstract and full text of the article please see the attached PDF-File (English version follows Russian version). ABSTRACT The article is devoted to the study of oscillations of ballastless bridge deck, concrete slabs, conduct of rail ...
N. Dang T., V. Polyakov Yu., В. Поляков Ю., Н. Данг Т.   +3 more
core   +2 more sources

The Wavelength Characteristics of Vertical Deformation and a Train Dynamics Simulation of Long-Span, Cable-Stayed Bridges Under Complex Loads

Applied Sciences
Ballastless tracks have a high smoothness, but the corresponding laying requirements are strict. Therefore, the maximum span of cable-stayed bridges that can accommodate ballastless tracks is 392 m.
Zhiqiang Pang, Mangmang Gao, Guolong Li, Jingjing Yang, Fei Yang   +4 more
doaj   +1 more source

Study on the dynamic contact relationship between layers under temperature gradients in CRTSⅢ ballastless track

High-Speed Railway
In areas with large temperature differences, the uneven distribution of temperatures in the CRTS III ballastless track slab due to daytime sunlight can cause warpage deformation, leading to periodic rail irregularities that increase the wheel-rail impact
Lei Zhao, Guotang Zhao, Guotao Yang, Hao Jin, Chenxi Li   +4 more
doaj   +1 more source

Laboratory Investigation of Type I and Type II Hardened Cement Emulsified Asphalt Mortar [PDF]

, 2014
The research presented in this thesis investigated the mechanical and viscoelastic properties of a relatively new construction building material that has been given a lot of attention in the past decade. Cement emulsified asphalt mortar (CEAM) has unique
Rutherford, Tyler E.
core   +1 more source

Influence of Reflective Coating on Temperature Field and Temperature Effect of CRTS III Slab Ballastless Tracks on Bridges. [PDF]

Materials (Basel), 2023
Song L, Wu L, Cui C, Yu Z.
europepmc   +1 more source

High-Accuracy Modeling and Mechanism Analysis of Temperature Field in Ballastless Track Under Multi-Boundary Conditions

Applied Sciences
The non-uniform temperature distribution in ballastless track slabs under complex meteorological conditions can induce structural defects, threatening the safety of high-speed railways.
Ying Wang, Yuelei He
doaj   +1 more source