铁路有砟道床劣化研究进展综述  

Review of Research of Railway Ballast Bed Deterioration

作　　者：高亮[1] 徐旸 杨国涛[1,3] 殷浩 石顺伟[1] GAO Liang;XU Yang;YANG Guotao;YIN Hao;SHI Shunwei(School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,China;Railway Engineering Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Science and Technology Management Department,China Railway,Beijing 100844,China)

机构地区：[1]北京交通大学土木建筑工程学院,北京100044 [2]中国铁道科学研究院集团有限公司铁道建筑研究所,北京100081 [3]中国国家铁路集团有限公司科技和信息化部,北京100844

出　　处：《铁道学报》2022年第8期78-92,共15页Journal of the China Railway Society

基　　金：国家自然科学基金(U1734206,U1234211)。

摘　　要：散体道床在列车循环荷载以及复杂环境长期耦合作用下会产生劣化现象,如道砟破碎、道床沉降等。如不及时进行养护维修,会诱发一系列线路结构病害,影响列车的平稳、安全运营。针对国内外关于有砟轨道劣化的已有研究及存在问题进行分析研究,主要包括道砟颗粒劣化、散体道床劣化等有砟道床劣化机理,有砟轨道结构设计主要影响因素及关键设计参数优化,以及大机养护维修、新型有砟轨道结构等延缓劣化措施。在此基础上,对散体道床劣化研究工作中所需要重视的问题进行探讨。The ballast bed would degrade under cyclic train load and complex environment,such as ballast breaking and accumulative settlement.Any delayed maintenance will lead to the further damage of railway line,and affect the safety and stability of railway operation.This paper aims to summarize and analyze the existing researches and problems of ballast deterioration both at home and abroad.The deterioration mechanism of ballast track was investigated at first,including the degradation of ballast particles and ballast bed.Then,the effect of operating conditions on the deterioration of ballast track was explored,and the optimized structures were proposed.Finally,the deterioration delaying measures were studied,including tamping maintenance with machinery and new types of track structure.In addition,the further research about ballast bed deterioration was discussed.

关 键 词：有砟轨道 劣化机理 参数优化 延缓措施 

分 类 号：U213.7[交通运输工程—道路与铁道工程]