Results 31 to 40 of about 6,316,137 (108)

Study on physical and mechanical properties of cement asphalt emulsified mortar under track slab [PDF]

Railway Sciences
Purpose – During the construction process of the China Railway Track System (CRTS) I type filling layer, the nonwoven fabric bags have been used as grouting templates for cement asphalt (CA) emulsified mortar.
Tao Wang, Shaoliang Wu, Hengqiong Jia, Shanqing Peng, Haiyan Li, Piyan Shao, Zhao Wei, Yi Shi   +7 more
doaj   +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

Deflection Prediction of Track‐Slab Construction of High‐Speed Railway Bridge Based on Impact Vibration Testing and Flexibility Identification

Structural Control and Health Monitoring, Volume 2026, Issue 1, 2026.
Line shape control is the most critical step in the construction of high‐speed railway bridges. The deflection of long‐span bridges (such as cable‐stayed bridges) is more complex as a multipoint elastic‐supported system, especially during track slab construction.
Ze Chen, Siqi Jia, Qi Xia, Jian Zhang, Tzu-Kang Lin   +4 more
wiley   +1 more source

Reliability Prediction for New Prefabricated Track Structures Based on the Fuzzy Failure Modes, Effects, and Criticality Analysis Method

Applied Sciences
This paper aims to address the problems of safety and durability in China’s ballastless track structures, particularly the lack of accurate analysis and methods for predicting the reliability of the new type of prefabricated track structure during the ...
Chao Huang, Jun Wu, Zhi Shan, Qing’e Wang, Zhiwu Yu   +4 more
doaj   +1 more source

Theoretical Prediction and Evaluation of Rail Deformation for CRTS II Ballastless Track Under Creep Camber of Girders

Structural Control and Health Monitoring, Volume 2026, Issue 1, 2026.
The time‐dependent deformation due to creep in simply supported girders represents a key controlling factor for the long‐term service performance of ballastless tracks. Accordingly, establishing the correlation between girder deformation and long‐term track irregularity provides the theoretical basis for the safety assessment of track structures ...
Zhihui Zheng, Lei Liu, Peng Liu, Zhi Shan, Zhiwu Yu, Young-Jin Cha   +5 more
wiley   +1 more source

Rail Corrugation Detection of High‐Speed Railway Using Wheel Dynamic Responses

Shock and Vibration, Volume 2019, Issue 1, 2019., 2019
Rail corrugation often occurs on the high‐speed railway, which will affect ride comfort and even the train operation safety in severe condition. Detection of rail corrugation wavelength and depth is absolutely essential for maintenance and safety. A novel method using wheel vibration acceleration is proposed in this paper, in which ensemble empirical ...
Jianbo Li, Hongmei Shi, Krzysztof Holak
wiley   +1 more source

Research on Target Localization Method of CRTS-III Slab Ballastless Track Plate Based on Machine Vision

, 2021
In the construction of high-speed railway infrastructure, a CRTS-III slab ballastless track plate has been widely used. Anchor sealing is an essential step in the production of track plates. We design a novel automated platform based on industrial robots
Liaomo Zheng, Qiang Zhang, Xinjun Liu, Qi Wang, Wenjiang Wu, Shiyu Wang   +5 more
core   +1 more source

Attitude Control Mechanism of High‐Speed Trains After Derailment by On‐Board Protective Devices Based on Whole Process Experiments

Structural Control and Health Monitoring, Volume 2026, Issue 1, 2026.
Derailment accidents of high‐speed trains (HSTs) occur occasionally. How to enable derailed vehicles to decelerate and come to a stop as much as possible along the track alignment is the last line of defense for mitigating the losses caused by HST derailment disasters.
Fengzhuang Tong, Jinjie Chen, Jianxi Wang, Pengfei Liu, Long Chen, Fabio Casciati   +5 more
wiley   +1 more source

Investigation on Effect of Reflective Coating on Temperature Field of CRTS Ⅱ Slab Ballastless Track under Sunlight

, 2023
The internal temperature variation of ballastless track is very complicated under the effect of a sunlit environment, and there are serious transverse and vertical temperature gradients, which will cause cracking and deformation of the structure. In this
Jun Tian, Xiankai Quan, Wenhua Guo, Weiguo Zhang   +3 more
core   +1 more source

A Noncontact Methodology for Disengagement Monitoring of High‐Speed Railway Bridge Bearings Based on Bearing‐to‐Beam Displacement Relation Under Round‐Trip Trains

Structural Control and Health Monitoring, Volume 2026, Issue 1, 2026.
Bearings are critical components of bridges and are susceptible to various forms of deterioration under the action of traffic loads and complex environmental conditions. Existing methods for assessing the condition of bearings, including visual inspections, force sensors, cameras, and vibration sensors, still present challenges in accurately locating ...
Chuang Wang, Jiawang Zhan, Zhihang Wang, Xinxiang Xu, Yujie Wang, Zhen Ni, Fei Li, Lucia Faravelli   +7 more
wiley   +1 more source