Results 1 to 10 of about 29,036 (116)

Random-Forest Machine Learning Approach for High-Speed Railway Track Slab Deformation Identification Using Track-Side Vibration Monitoring

Applied Sciences, 2021
High-speed railways (HSRs) are established all over the world owing to their advantages of high speed, ride comfort, and low vibration and noise. A ballastless track slab is a crucial part of the HSR, and its working condition directly affects the safe ...
Gaoran Guo, Xuhao Cui, Bowen Du
doaj   +3 more sources

Study on influence of cosine-shaped subgrade settlement at different positions on the deformation and interlayer contact behavior of unit slab ballastless track [PDF]

Scientific Reports
The influence of cosine-shaped subgrade settlement (CSSS) at different positions on the structure of unit slab ballastless track (USBT) of high-speed railway (HSR) is studied in this paper.
Jing Tan, Xuehui Jiang, Ruping Luo, Hongyan Li, Shuai He, Yu Hou   +5 more
doaj   +2 more sources

Effects of Differential Subgrade Settlement on Slab Track Deformation Based on a DEM-FDM Coupled Approach

Applied Sciences, 2021
Slab track structures become deformed under the effects of differential subgrade settlement. According to the properties of the China Railway Track System (CRTS) II slab track on a subgrade, a three-dimensional (3D) coupled model based on both the ...
Xuhao Cui, Rui Zhou, Gaoran Guo, Bowen Du, Hanlin Liu   +4 more
doaj   +3 more sources

Method for Monitoring the Safety of Urban Subway Infrastructure Along Subway Lines by Fusing Inter-Track InSAR Data [PDF]

Sensors
Urban surface subsidence is primarily induced by intensive above-ground and underground construction activities and excessive groundwater extraction. Integrating InSAR techniques for safety monitoring of urban subway infrastructure is therefore of great ...
Guosheng Cai, Xiaoping Lu, Yao Lu, Zhengfang Lou, Baoquan Huang, Yaoyu Lu, Siyi Li, Bing Liu   +7 more
doaj   +2 more sources

Behavior Characteristics of a Booted Sleeper Track System According to Substructure Deformation

Applied Sciences, 2021
In booted sleeper floating track systems wherein the concrete bed, rail, and sleeper are structurally separated, mismatches can occur between the substructure and track owing to deformations.
Jung-Youl Choi, Dae-Hui Ahn, Sun-Hee Kim
doaj   +1 more source

Train-Induced Vibration Monitoring of Track Slab under Long-Term Temperature Load Using Fiber-Optic Accelerometers

Sensors, 2021
The train-induced vibration response provides a flexible solution for the real-time monitoring deformation of high-speed railway track slab in actual operation.
Jianxiang Zhang, Wenzhu Huang, Wentao Zhang, Fang Li, Yanliang Du   +4 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

Influence of freeze-thaw of ballasted track on vehicle vibration and its evaluation

Transportation Engineering, 2022
In the seasonally frozen regions, railway subgrades are subjected to freeze-thaw cycles due to environmental temperature change. The railway track is likely to be deformed during the freezing and thawing processes of subgrades.
Shoulong Zhang, Tatsuya Ishikawa, Bin Luo   +2 more
doaj   +1 more source

Analysis of Dynamic Characteristics of Deformed Concrete Slab Track on Transition Zone in High-Speed Train Line According to Train Speeds

Applied Sciences, 2020
A concrete track, such as Rheda 2000 is commonly used in high-speed railways in Korea, Germany, China, etc., to enhance the operational safety of trains and to reduce the maintenance costs.
Sungbum Park, Ja Yeon Kim, Jongwon Kim, Sehee Lee, Kook-Hwan Cho   +4 more
doaj   +1 more source

Deformation Control of Subway Stations under the Influence of the Construction of Deep and Large Foundation Pits with Composite Support Systems

Applied Sciences, 2022
The excavation depth of a deep and large foundation pit of a composite support system is 25.5 m, the minimum clear distance from the main structure of the station is 10.6 m and the closest distance to the entrance and exit structure is only 3.6 m ...
Hua Peng, Qingchen Tang, Li Zhu, Zichen Li, Haiyang Li, Guangming Wang   +5 more
doaj   +1 more source