Results 81 to 90 of about 947 (220)

Intelligent recognition of defects in high‐speed railway slab track with limited dataset

Computer-Aided Civil and Infrastructure Engineering, Volume 39, Issue 6, Page 911-928, 15 March 2024.
Abstract During the regular service life of high‐speed railway (HSR), there might be serious defects in the concrete slabs of the infrastructure systems, which may further significantly affect public transportation safety. To address these serious issues and fulfill the regular functions of HSR, the traditional methods for railway engineers involve ...
Xiaopei Cai, Xueyang Tang, Shuo Pan, Yi Wang, Hai Yan, Yuheng Ren, Ning Chen, Yue Hou   +7 more
wiley   +1 more source

Ballastless Track – Minimizing the Climate Impact [PDF]

, 2021
Railway transportation is becoming increasingly important for transport of passengers and goods in Sweden, Europe and many parts of the world. Ballastless (slab) railway systems are increasingly in use; however, their construction is known to cause a ...
L\uf6fgren, Ingemar, Lundgren, Karin, Zandi, Kamyab   +2 more
core  

Intelligent Detection of Surface Defects in High‐Speed Railway Ballastless Track Based on Self‐Attention and Transfer Learning

Structural Control and Health Monitoring, Volume 2024, Issue 1, 2024.
The detection of ballastless track surface (BTS) defects is a prerequisite for ensuring the safe operation of high‐speed railways. Traditional convolutional neural networks fail to fully exploit contextual information and lack global pixel representations.
Wenlong Ye, Juanjuan Ren, Chen Li, Wengao Liu, Zeyong Zhang, Chunfang Lu, Hoon Sohn   +6 more
wiley   +1 more source

Non-uniform variation characteristics of temperature field and corresponding thermal effect of longitudinal continuous slab ballastless track structure [PDF]

The longitudinal continuous slab ballastless track structure (LCSBTS) easily suffers from interface and joint damage when subjected to extremely high-temperature loads, significantly affecting the running smoothness and safety of high-speed trains.
Arcos Villamarín, Robert, Jiang, Dianyou, Liu, Yu, Romeu Garbí, Jordi, Sun, Xiaodan, Xu, Qianqi   +5 more
core   +1 more source

The influence of water immersion on the mechanical property of cement asphalt mortar and its implications on the slab track [PDF]

, 2017
Dynamic compression test of cement asphalt (CA) mortar specimens, due to water immersion history of 0d, 7d, 14d and 30d, are carried out using a universal electronic test machine, with the strain rates ranging from 1×10-5 s-1 to 1×10-2 s-1.
Hao Xu, Hong-song Lin, Hua Yan, Ping Wang   +3 more
core   +3 more sources

Dynamic calibration of slab track models for railway applications using full-scale testing [PDF]

, 2020
Research and development of technology for railways has found new impetus as society continues to search for cost effective and sustainable means of transport. This tasks engineers with using the state-of-the-art science and engineering for rolling stock
Abdala Filho, J. E., Carrascal Vaquero, Isidro Alfonso, Casado del Prado, José Antonio, Diego Cavia, Soraya, Esen, A., Ferreño Blanco, Diego, Laghrouche, O., Marolt Cebasek, T., Polanco Madrazo, Juan Antonio, Pombo, J., Pérez Nuñez, Alejandro, Sainz-Aja Guerra, José Adolfo, Tholken, D., Woodward, P.   +13 more
core   +1 more source

Investigation on Dynamic Factors of Railway Steel‐Plate–Concrete Composite Beam Bridges With Small and Medium Spans

Advances in Civil Engineering, Volume 2024, Issue 1, 2024.
Dynamic factor (DF) is an important indicator for describing the dynamic action of a train on a bridge. For small‐ and medium‐span bridges, although existing research and codes have studied and specified the DF of steel–concrete composite beam bridges, few studies have been refined to steel‐plate–concrete composite beam bridges (SPCCBs), and the effect
Jin Di, Yi Su, Yuxuan Han, Jinming Luo, Fengjiang Qin, Rui Yan, John Mander   +6 more
wiley   +1 more source

Stiffness Coefficient in the Transition Zone Between Ballasted and Ballastless Track and Its Influence on Formation Stressing [PDF]

, 2010
In this paper, a parametric investigation of the static and dynamic elasticity (stiffness coefficient) of the railway track and of the elastic pads of the fastenings is presented for the cases of Ballastless Track (Slab Track and Embedded Track ...
Giannakos, Konstantinos
core   +1 more source

Microstructure in Adhesion Development Process and Strength Formation Mechanism in Early Stage of Cold Recycled Mixture with Emulsified Asphalt

Advances in Civil Engineering, Volume 2024, Issue 1, 2024.
With the large‐scale maintenance and renovation of asphalt pavement, a considerable amount of reclaimed asphalt pavement (RAP) will be generated. Stacking these wastes occupies a large amount of land and seriously damages the ecological environment. Hence, efficient regeneration of RAP through recycling technology has gained more and more attention. In
Xueying Zhao, Baofu Ma, Afshar A. Yousefi   +2 more
wiley   +1 more source

Rotational Friction Damper’s Performance for Controlling Seismic Response of High Speed Railway Bridge-Track System [PDF]

, 2019
CRTS-II slab ballastless track on bridge is a unique system in China high speed railway. The application of longitudinal continuous track system has obviously changed dynamic characteristics of bridge structure. The bridge system and CRTS-II track system
Chen Zeng, Hengchao Xu, Hongye Gou, Longlong Guo, Wei Guo, Yao Hu   +5 more
core   +2 more sources