Article(id=1308453944208946045, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1308453915104665783, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1672-6073.2026.02.013, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1746979200000, receivedDateStr=2025-05-12, revisedDate=1762012800000, revisedDateStr=2025-11-02, acceptedDate=null, acceptedDateStr=null, onlineDate=1789889330197, onlineDateStr=2026-09-20, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789889330197, onlineIssueDateStr=2026-09-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789889330197, creator=13701087609, updateTime=1789889330197, updator=13701087609, issue=Issue{id=1308453915104665783, tenantId=1146029695717560320, journalId=1146123302524792850, year='2026', volume='39', issue='2', pageStart='1', pageEnd='160', issueExtLink='null', onlineDate='null', pubDate='1775750400000', pubDateStr='2026-04-10', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1789889323259, creator='13701087609', updateTime=1789889766020, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1308455772237615687, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1308453915104665783, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1308455772237615688, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1308453915104665783, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=106, endPage=111, ext={EN=ArticleExt(id=1308453946004108158, articleId=1308453944208946045, tenantId=1146029695717560320, journalId=1146123302524792850, language=EN, title=Treatment Technology of Unsupported Defects in Existing Elastic Short-Sleeper Tracks, columnId=1152669336394183038, journalTitle=Urban Rapid Rail Transit, columnName=Civil Engineering Technology, runingTitle=null, highlight=null, articleAbstract=

To address the problems of aging and deformation of rubber boots, unsupported sleepers and gauge variation caused by long-term operation on existing elastic short-sleeper tracks, and to improve the stability and operational safety of the track structure, this paper proposes a novel treatment technology for unsupported defects in elastic short-sleeper tracks to overcome the low construction efficiency and insufficient repair precision of existing repair methods. This technology combines a novel high-flow repair material with a refined grouting process, enabling complete filling of gaps smaller than 1 mm. Off-site grouting tests verified the feasibility of the material and construction process, and the mechanical properties of the repaired elastic short-sleeper track were evaluated based on static stiffness and fatigue tests. The test results demonstrate that this treatment method effectively fills the unsupported areas and enhances the overall stability of the track structure. It is suitable for the rapid and efficient repair of existing tracks under time and space constraints and has good potential for engineering application.

, authors=Yujie ZHANG¹, Huijun ZHANG², Shuwei WANG¹, Zhenglong GONG², Long GAO², authorsList=Yujie ZHANG, Huijun ZHANG, Shuwei WANG, Zhenglong GONG, Long GAO, authorCompany=null, correspAuthors=Shuwei WANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1308453946398372735, articleId=1308453944208946045, tenantId=1146029695717560320, journalId=1146123302524792850, language=CN, title=既有线弹性短轨枕空吊病害治理技术研究, columnId=1152669336603898239, journalTitle=都市快轨交通, columnName=土建技术, runingTitle=null, highlight=null, articleAbstract=

为解决既有线弹性短轨枕轨道因长期运营导致的橡胶套靴老化变形、轨枕吊空及轨距变化等病害，提升轨道结构的稳定性与运营安全，针对现有病害治理方法施工效率低、修复精度不足等问题，提出一种新型弹性短轨枕空吊病害治理技术。该技术将新型高流动性修补材料与精细化灌注施工工艺相结合，能够实现对1 mm以下缝隙的充分填充。通过线下灌注试验验证材料与施工工艺的可行性，并基于静刚度试验和疲劳性能试验对修复后的弹性短轨枕轨道进行力学性能评估。试验结果表明：该治理方法能够有效填充空吊区域，增强轨道结构的整体稳定性，适用于时空受限条件下既有线轨道的快速高效修复，具有良好的工程推广应用价值。

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张雨洁，女，硕士，助理工程师，从事轨道交通设计及运维工作，zhangyujie@crdc.com

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