Results 81 to 90 of about 550,441 (188)

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

Stochastic Dynamic Analysis of High‐Speed Railway Vehicle–Track Systems Based on the Adaptive Probability Density Evolution Method

Advances in Civil Engineering, Volume 2025, Issue 1, 2025.
The theoretical and analytical approaches of stochastic dynamics constitute the foundation for performing in‐depth inquiries into the random dynamic behavior of high‐speed railway vehicle–track system (RVTS). The proposal of the generalized probability density evolution method (PDEM) has opened up new perspectives for the stochastic dynamic analysis of
Dengke Ma, Tongjun Wang, Ziquan Yan, Jin Shi, Cheng Jiang, Camelia Delcea   +5 more
wiley   +1 more source

Study on the Deformation Characteristics of Railway Subgrade Structures Induced by Groundwater Level Changes

Advances in Civil Engineering, Volume 2025, Issue 1, 2025.
The groundwater extraction will lead to a drop in water level, causing a change in the distribution of additional stress in the strata. This phenomenon leads to uneven settlement of the railway subgrade. In severe cases, this could threaten the safe operation of trains.
Baolong Li, Lulu Jiang, Dongli Wang, Yi Yin, Yupeng Shen, Yunxi Han, Jose Matos   +6 more
wiley   +1 more source

ON ECONOMIC ASSESSMENT OF BALLASTLESS TRACK STRUCTURE EFFICIENCY

Bulletin of scientific research results, 2017
Objective: To describe the regulation of railroad traffic parameters in modern conditions, that lead to the necessity of putting into operation the new systems of track design, relevant for regulations in question. Methods: The method of matching, as well as the method of comparative analysis was applied in the study.
Ludmila Andreyeva, Yevgeniy Svintsov, Yelena Tarasevich   +2 more
openaire   +1 more source

Dynamic Assessment of Ballastless Track Stiffness and Settlement in High-Speed Railway

, 2010
Although ballastless track has such advantages as less maintenance and high stability, its big rigidity results in a strong wheel/rail dynamic interaction.
R. Chen, X. P. Chen, P. Wang
core   +1 more source

Mapping Law of CRTS Ⅱ Type Slab Ballastless Track Static Deformation Due to Subgrade Horizontal Deformation

Chengshi guidao jiaotong yanjiu
Objective Aiming at the insufficient control indexes for high-speed railway subgrade horizontal deformation currently, it is necessary to study the influence law and limit values of ballastless track subgrade horizontal deformation.
YIN Wei, NI Wanyu, YAN Guangpeng
doaj   +1 more source

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

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

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

Railway Continuous Prestressed Concrete Bridge Design in Ballastless Track Turnout Zones

, 2017
Laying ballastless track on railway bridges has the advantages of reducing the train noise problem, improving passenger comfort, and reducing track maintenance costs.
Wen-Kuei Hsu, Yu-Lin Lee, Neng-Hao Shih
core   +1 more source