Article(id=1322559951688552940, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559901990240737, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1740412800000, receivedDateStr=2025-02-25, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793252464458, onlineDateStr=2026-10-29, pubDate=1774368000000, pubDateStr=2026-03-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793252464458, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793252464458, creator=13701087609, updateTime=1793252464458, updator=13701087609, issue=Issue{id=1322559901990240737, tenantId=1146029695717560320, journalId=1225396423026438145, year='2026', volume='46', issue='3', pageStart='1', pageEnd='330', issueExtLink='null', onlineDate='null', pubDate='1774368000000', pubDateStr='2026-03-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793252452609, creator='13701087609', updateTime=1793252731500, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322561071810991099, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559901990240737, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322561071810991100, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559901990240737, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=180, endPage=190, ext={EN=ArticleExt(id=1322559951852130797, articleId=1322559951688552940, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Research of the Anchoring Performance of Nano-Composite Grouted Bolts Based on Optical Frequency Domain Reflectometry, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

To investigate the influence of Nano-SiO₂ (NS) on the performance of ultrafine cement and evaluate its application efficacy in grouted bolts, test groups with varying NS dosages were established. A series of tests, including fluidity, initial setting time, mechanical properties of the grouted body, SEM microstructure, and pullout performance, were systematically conducted. Furthermore, optical frequency domain reflectometry (OFDR) was employed to monitor the strain distribution during the pullout process. The results indicate that the incorporation of NS decreases the fluidity and initial setting time of the nano-composite grouting materials while accelerating the early hydration reaction rate. At an optimal NS dosage of 2%, the compressive and flexural strengths of the grouted body are maximized, and the microstructure becomes significantly denser. The pullout tests and OFDR fiber monitoring reveal that the ultimate bearing capacity of the nano-composite grouted bolt is elevated to 210 kN. Additionally, the load-displacement curve exhibits enhanced ductility and higher residual strength; concurrently, the strain distribution along the bolt rod is more uniform, with a reduction in abrupt local strain variations. These findings verify the feasibility and effectiveness of nano-composite grouting materials in improving anchoring performance, providing robust technical support for the optimization of anchoring systems in geotechnical engineering.

, authors=Shuanghui LI¹, Xi TONG², Chunhai DU², Lei HUANG¹, Wu YE³, Ran CHEN⁴, Guiqian CAO¹, Li LYU¹, authorsList=Shuanghui LI, Xi TONG, Chunhai DU, Lei HUANG, Wu YE, Ran CHEN, Guiqian CAO, Li LYU, authorCompany=null, correspAuthors=Lei HUANG, 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=1322559952082817518, articleId=1322559951688552940, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=基于光频域反射技术的纳米复合注浆锚杆锚固性能研究, columnId=1226462295417598973, journalTitle=矿业研究与开发, columnName=矿山安全与环保, runingTitle=null, highlight=null, articleAbstract=

为了探究纳米二氧化硅（NS）对超细水泥性能的影响，并评估其在注浆锚杆中的应用效果，设置不同NS掺量的试验组，系统开展了流动度、初凝时间、结石体力学性能、SEM微观结构及拉拔性能等测试，并利用光频域反射技术（OFDR）对拉拔过程中的应变进行监测。结果表明：NS的掺入会降低纳米复合注浆材料的流动度和初凝时间，提升材料的早期水化反应速率；NS掺量为2%时，结石体的抗压和抗折强度达到最优，微观结构更加致密；拉拔试验和OFDR光纤监测显示，纳米复合注浆锚杆的极限承载力提升至210 kN，荷载－位移曲线表现出更强的延性和更高的残余强度，锚杆杆体的应变更均匀，局部应变突变减少。研究结果验证了纳米复合注浆材料在提高锚固性能方面的可行性和有效性，为岩土工程中锚固系统的优化提供了技术支持。

, authors=李双辉¹, 仝曦², 杜春海², 黄磊¹, 叶武³, 陈然⁴, 曹桂乾¹, 吕利¹, authorsList=李双辉, 仝曦, 杜春海, 黄磊, 叶武, 陈然, 曹桂乾, 吕利, authorCompany=null, correspAuthors=黄磊, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=zVkmj1uL37drZV1+/k4AOA==, magXml=fSqVn8WdCqKqWEk5NqfNxQ==, pdfUrl=null, pdf=+FAJyxGxWo0wRsttJqamIg==, pdfFileSize=2979518, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=hJTfpWSKGlRh6VYdSqgG2A==, mapNumber=null, fund=null)}, authors=[Author(id=1322559952607105532, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322559951688552940, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=1202211518@cug.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322559952682603006, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322559951688552940, authorId=1322559952607105532, language=EN, stringName=Shuanghui LI, firstName=Shuanghui, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1.Badong National Observation and Research Station of Geohazards, China University of Geosciences (Wuhan), Wuhan, Hubei 430074, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322559952749711871, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322559951688552940, authorId=1322559952607105532, language=CN, stringName=李双辉, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1．中国地质大学（武汉） 湖北巴东地质灾害国家野外科学观测研究站，湖北 武汉　430074, bio={"content":"

李双辉（2000—），男，江苏扬州人，硕士研究生，主要从事岩土加固新材料与新技术等方面的工作。E-mail: 1202211518@cug.edu.cn

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李双辉（2000—），男，江苏扬州人，硕士研究生，主要从事岩土加固新材料与新技术等方面的工作。E-mail: 1202211518@cug.edu.cn

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