Results 71 to 80 of about 1,810 (220)

Application Study on Fiber Optic Monitoring and Identification of CRTS-II-Slab Ballastless Track Debonding on Viaduct

Applied Sciences, 2021
China Railway Track System (CRTS)-II-slab ballastless track is a new type of track structure, and its interlayer connection state is considerably important for the operation safety and ride comfort of high-speed trains. However, the location and multiple
Gaoran Guo, Junfang Wang, Bowen Du, Yanliang Du   +3 more
doaj   +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 Protective Effect of Isolation Piles on Deformation of Adjacent Existing Railways

Advances in Civil Engineering, Volume 2025, Issue 1, 2025.
The isolation pile is the main measure used to reduce the mutual influence between neighboring projects in engineering. In response to the issue of the protective effect of isolation pile technology on the deformation of adjacent existing railway subgrades, this research adopted numerical simulation and a loading deformation analysis method considering
Ying Yang, Shangyong Chen, Jian Li, Shanglin Qin, Chi Liu, Pan Liu, Tengfei Nian   +6 more
wiley   +1 more source

Influence of train speed and its mitigation measures in the short- and long-term performance of a ballastless transition zone

Railway Engineering Science, 2023
The ballastless track is nowadays the most popular railway system due to the required low number of maintenance operations and costs, despite the high investment.
Ana Ramos, Rui Calçada, António Gomes Correia   +2 more
doaj   +1 more source

Safety Study of Buried Gas Pipelines Under Excavation Loads

Shock and Vibration, Volume 2025, Issue 1, 2025.
China’s rapid urbanization intensifies third‐party excavation risks to underground gas pipelines, escalating emergency repairs and accident hazards. This study systematically evaluates the mechanical response and safety of buried steel and polyethylene (PE) gas pipelines under excavation loads through integrated numerical simulations and theoretical ...
Yuan-Jian Yang, You-Jian Gu, Yong-Long Tang, Jun-Jie He, Pouyan Roodgar Saffari   +4 more
wiley   +1 more source

Dynamic Response Analysis of Ballastless Tracks Considering the Temperature-Dependent Viscoelasticity of Cement-Emulsified Asphalt Mortar Based on a Vehicle–Track–Subgrade Coupled Model

Lubricants
This study aims to explore the dynamic response of ballastless tracks under various temperatures of the cement-emulsified asphalt (CA) mortar layer and other environmental factors.
Yunqing Chen, Bing Wu, Linquan Yao, Xianglong Su   +3 more
doaj   +1 more source

Mechanical Behaviors and Fatigue Performances of Ballastless Tracks Laid on Long-Span Cable-Stayed Bridges with Different Arrangements

Sensors, 2019
In this paper, we present a new attempt to lay ballastless tracks on long-span cable-stayed bridges on high-speed railways. The arrangements of ballastless tracks laid on cable-stayed bridges can be divided into two conditions: (i) across the cable ...
Xingwang Sheng, Weiqi Zheng, Zhihui Zhu
doaj   +1 more source

Numerical and Experimental Research on Identifying a Delamination in Ballastless Slab Track [PDF]

Materials, 2019
This paper aims to adopt the total focusing method (TFM) and wavenumber method for characterizing a delamination in ballastless slab track. Twelve dry point contact (DPC) transducers located at the upper surface of the slab track compose a linear array.
Guopeng Fan, Haiyan Zhang, Wenfa Zhu, Hui Zhang, Xiaodong Chai   +4 more
openaire   +2 more sources

MMW‐FC: A novel railway fastener detecting method based on millimetre wave radar for train positioning

IET Radar, Sonar &Navigation, Volume 18, Issue 7, Page 1094-1105, July 2024.
A novel method is proposed for rail fastener detection based on millimetre‐wave radar, which can accurately detect and enumerate the fasteners in real‐time as the train traverses its route. Under circumstances where GNSS signals remain unavailable for prolonged durations, precise train localisation can be accomplished by correlating the number of ...
Yangang Sun, Jinhai Li, Chaosan Yang, Zhankun Du, Jifeng Zhang, Xin Qiu   +5 more
wiley   +1 more source

Study of Problems Related to Laying Ballastless Track in the Turnout of Ballasted Track at High-Speed Railway Stations

Advances in Materials Science and Engineering, 2022
Due to the complex dynamic interactions of the vehicle-track system in the turnout of high-speed railway stations on a ballasted track, the geometric position of the line changes rapidly. In order to improve the stability of the line, the ballasted track
Ma Xue-Ning, Hao Zi-Xiang, Liu Chang, Wang Xu, Wang Bo-Lin   +4 more
doaj   +1 more source