Research progress on mechanical properties of high-speed railway ballastless track under temperature and vehicle load

SONG Anxiang; YAO Guowen; LIU Jiawei; WANG Yuerui

doi:10.11835/j.issn.2096-6717.2022.084

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Research progress on mechanical properties of high-speed railway ballastless track under temperature and vehicle load

Civil Engineering | 更新时间：2023-09-19

- Research progress on mechanical properties of high-speed railway ballastless track under temperature and vehicle load
- Journal of Civil and Environmental Engineering Vol. 45, Issue 5, Pages: 125-146(2023)
- 作者机构：
  
  1.重庆交通大学，山区桥梁及隧道工程国家重点实验室，重庆 400074
  2.重庆交通大学，土木工程学院，重庆 400074
- 作者简介：
  
  SONG Anxiang (1995- ), PhD candidate, main research interest: ballastless track structure, E-mail: 1225763598@qq.com.
  YAO Guowen （corresponding author）, professor, doctorial supervisor, E-mail: yaoguowen@sina.com.
- 基金信息：
  
  National Natural Science Foundation of China(52178273);Natural Science Foundation of Chongqing(cstc2021jcyj-msxmX1159);Chongqing Graduate Joint Training Base Construction Project(JDLHPYJD2020004);Chongqing Postgraduate Research and Innovation Project(CYB22230)
- DOI：10.11835/j.issn.2096-6717.2022.084
  CLC： U213.2
- Received：10 February 2022，
  
  Published：25 October 2023
- 稿件说明：
移动端阅览
SONG Anxiang, YAO Guowen, LIU Jiawei, et al. Research progress on mechanical properties of high-speed railway ballastless track under temperature and vehicle load[J]. Journal of Civil and Environmental Engineering, 2023, 45(5): 125-146.
DOI：

SONG Anxiang, YAO Guowen, LIU Jiawei, et al. Research progress on mechanical properties of high-speed railway ballastless track under temperature and vehicle load[J]. Journal of Civil and Environmental Engineering, 2023, 45(5): 125-146. DOI： 10.11835/j.issn.2096-6717.2022.084.

摘要

为深入了解温度及高频列车荷载作用下无砟轨道结构损伤研究进展，概述无砟轨道的主要结构型式及其优缺点，梳理无砟轨道温度场与温度效应的研究现状，重点分析不同温度荷载形式下层间界面损伤发生、发展过程与变化规律；介绍静力作用下路基、桥上无砟轨道的静力特性及疲劳荷载作用下的疲劳损伤演化机制；探讨温度-列车荷载耦合作用下无砟轨道结构力学响应研究现状及其重难点；总结目前研究的局限并进一步展望未来发展趋势。结果表明：具有太阳辐射地域性差异的无砟轨道温度作用模式和取值鲜有研究，设计规范也没有针对性说明，后续应结合历史气象数据准确计算无砟轨道温度作用，绘制不同地域的无砟轨道温度作用取值等温线地图，提高结构温度作用取值和温度计算理论的精度；对温度及列车荷载对无砟轨道结构损伤的研究多集中于整体结构，细部结构损伤演化未深入研究，应对标工程实际，结合轨道细部构件与整体结构、室内加速试验与现场试验、数值分析与试验研究，量化无砟轨道各参数与结构的映射关系；因试验条件限制，现有温度-荷载及力学试验均分段进行，仅从数值模拟角度对无砟轨道开展温度-列车荷载耦合作用下的性能研究，数值结果缺少模型试验的验证，应在单一荷载研究背景下进一步突破温度-列车荷载耦合作用下的多尺度模型试验方法、多场耦合精细化数值分析方法，揭示温度-列车荷载耦合动力学行为和轨道结构失稳机理；循环温度、持续高低温等复杂温度和列车荷载耦合效应鲜有研究，应探明复杂温度-列车荷载耦合作用下无砟轨道损伤演化机制，优化无砟轨道体系设计，完善耦合作用下的轨道结构性能服役评估标准。

Abstract

In order to deeply understand the progress of research on structural damage of ballastless track under temperature and high-frequency train load

the primary structural forms of ballastless track and its advantages and disadvantages were summarized

the current status of research on the temperature field and temperature effect of ballastless track was reviewed

and the process of occurrence

development and change the law of interlayer interface damage under different forms of temperature load was focused on. The static properties of roadbeds and ballastless tracks on bridges under static forces and the mechanism of fatigue damage evolution under fatigue loading were presented. The current state of research on the mechanical response of ballastless track structures under coupled temperature-train loads and the major difficulties were discussed. Summarized the current research limitations and further looked forward to future development trends. Research results show that the regional difference of solar radiation has little research on the temperature action mode and value of ballastless track

and the design specification has no specific description. In the future

the temperature action of ballastless track should be accurately calculated in combination with historical meteorological data

and the isotherm maps of the temperature effect of ballastless tracks in different regions should be drawn to improve the accuracy of structural temperature action value and temperature calculation theory. The damage research of temperature and train dynamic load on ballastless track structure is mostly concentrated on the overall structure

and the damage evolution of detailed structure is not studied in depth. To quantify the mapping relationship between each parameter of ballastless track and structure by combining track details

components and overall structure

indoor accelerated test and field test

numerical analysis and experimental research in response to the actual standard project. Due to the limitation of test conditions

the existing temperature load and mechanical test are all carried out in sections

and the performance study under the coupling effect of temperature and train load is only carried out on the ballastless track from the perspective of numerical simulation. Under the background of single-load research

further breakthroughs are made in the multi-scale model test method and the multi-field coupling refined numerical analysis method under the coupled effect of temperature-train load

revealing the coupled dynamic behavior of temperature-train load and the instability mechanism of the track structure. The complex temperature and vehicle load coupling effects based on cyclic temperature

continuous high and low temperature

etc. have rarely been published. Probing the damage evolution mechanism of ballastless track under complex temperature-train load coupling. Optimize the design of ballastless track system

and improve service evaluation criteria for track structure performance under coupling action

to provide a reference for the actual project.

关键词

Keywords

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