铁路路基变形对无砟轨道结构影响研究综述
Review of Studies on Impact of Railway Subgrade Deformation on Rallast Track Structure
崔旭浩 1郑强 1刘永琨 1吕欣乐 1刘子安 1魏泓基1
作者信息
- 1. 北京工业大学城市建设学部,北京 100124
- 折叠
摘要
随着我国铁路事业飞速发展,铁路路基在长期服役过程中的变形问题及其对轨道结构力学行为的影响日益受到关注.对近年来的相关研究进展进行总结,分析铁路路基变形的主要原因,包括自然因素和人为因素;系统梳理路基变形对轨道力学行为的影响,如路基变形对轨道结构变形、车轨耦合振动及轨道结构的损伤劣化的影响研究现状;分析指出当前研究面临的挑战,并对未来在智能监测与预警系统、精准高效的数值仿真技术等方面的研究趋势进行展望.
Abstract
With the rapid development of railway industry in China,the deformation of railway subgrade during long-term service and its impact on mechanical behavior of track structure have attracted increasing attention.This paper summarizes relevant studies in recent years and analyzes the main causes of railway subgrade deformation,including natural and human factors;systematically sorts out the impact of subgrade deformation on track mechanical behavior,such as the impact of subgrade deformation on track structure deformation,train-track coupling vibration,and damage and deterioration of track structure;analyzes and points out the gaps and challenges in current studies,and prospects the future study trends in intelligent monitoring and early warning system,accurate and efficient numerical simulation technology,etc.
关键词
铁路路基变形/轨道结构/动力响应/损伤劣化Key words
railway subgrade deformation/track structure/dynamic response/damage and deterioration引用本文复制引用
基金项目
国家自然科学基金(52308426)
北京工业大学"星火基金"资助项目(XH-2023-03-18)
北京工业大学"星火基金"资助项目(XH-2024-04-08)
出版年
2024
NETL
NSTL
万方数据