Results 81 to 90 of about 953 (221)

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

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

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

Slab Track Optimization Using Metamodels to Improve Rail Construction Sustainability [PDF]

, 2022
[EN] Railways are an efficient transportmode, but building and maintaining railway tracks has a significant environmental impact in terms of CO2 emissions and use of raw materials. This is particularly true for slab tracks, which require large quantities
Insa Franco, Ricardo, Martínez Fernández, Pablo, Villalba Sanchis, Ignacio, Yepes, V.   +3 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

Hubungkait antara sikap dan pengetahuan pelajar kejuruteraan awam terhadap amalan keselamatan di bengkel perkayuan, KUiTTHO [PDF]

, 2002
Laporan kcmalangan yang dilaporkan olch Jabatan Buruh dan Pcrtubuhan Kcbajikan Sosial (SOCSO) mcnyatakan bahawa kadar kcmalangan dalam bidang pcrindustrian semakin mcningkat dari tahun ke tahun.
Wan Mansor, Wan Hilmi
core  

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

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

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

Hybrid Pixel‐Level Crack Segmentation for Ballastless Track Slab Using Digital Twin Model and Weakly Supervised Style Transfer

Structural Control and Health Monitoring, Volume 2024, Issue 1, 2024.
Crack detection at the pixel level across complex scenarios (structural interference and adverse working conditions) is a critical consideration in the maintenance of ballastless track slab (BTS). Although existing deep learning models achieve acceptable accuracy on cracks with a monotonous background, the ground truth with high labor cost is ...
Wenbo Hu, Weidong Wang, Xianhua Liu, Jun Peng, Sicheng Wang, Chengbo Ai, Shi Qiu, Wenjuan Wang, Jin Wang, Qasim Zaheer, Lichang Wang, Sara Casciati   +11 more
wiley   +1 more source