Article(id=1322559938233217988, 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=1743091200000, receivedDateStr=2025-03-28, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793252461249, onlineDateStr=2026-10-29, pubDate=1774368000000, pubDateStr=2026-03-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793252461249, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793252461249, creator=13701087609, updateTime=1793252461249, 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=172, endPage=179, ext={EN=ArticleExt(id=1322559938417767365, articleId=1322559938233217988, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Study on Millisecond Blasting Damage and Fractal Characteristics of Composite Rock Mass, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

To explore the damage distribution characteristics of rock mass caused by complex stress wave generated by blasting in soft and hard composite rock mass, a double-hole blasting model of composite rock mass composed of rock Ⅰ (relatively hard) and rock Ⅱ (relatively soft) was established based on LS-DYNA software. The damage law of rock under different initiation sequence and initiation delay time was discussed. The results show that in the composite rock mass, after the superposition of blasting stress waves, the stress waves in Rock Ⅰ override those in Rock Ⅱ and propagate further. The attenuation rate of effective stress in Rock Ⅰ is larger than that in Rock Ⅱ, resulting in the overall effective stress in Rock Ⅰ being smaller than that in Rock Ⅱ. The effective stress between the two blast holes in the composite rock mass decreases first and then increases, and the overall effective stress in Rock Ⅰ is always lower than that in Rock Ⅱ. The fractal dimension of rock decreases first and then increases with the increase of delay time. The fractal dimension of rock in Rock Ⅰ is larger than that in Rock Ⅱ when the blast hole is detonated first. The findings provide a reference significance for blasting construction in rock masses engineering under similar conditions.

, authors=Shengfeng WANG¹, Yongjun ZHANG¹, Yusong MIU², Xiaoshuang LI³, Fei LIU¹, Zhuoming SUN¹, authorsList=Shengfeng WANG, Yongjun ZHANG, Yusong MIU, Xiaoshuang LI, Fei LIU, Zhuoming SUN, authorCompany=null, correspAuthors=Yongjun ZHANG, 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=1322559938661036998, articleId=1322559938233217988, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=复合岩体微差爆破损伤破坏与分形特征研究, columnId=1226462295417598973, journalTitle=矿业研究与开发, columnName=矿山安全与环保, runingTitle=null, highlight=null, articleAbstract=

为研究复合岩体中爆破产生的复杂应力波所引起的岩体损伤分布特征，基于LS-DYNA软件建立了由岩石Ⅰ（相对较硬）和岩石Ⅱ（相对较软）组成的复合岩体双孔爆破模型，讨论了不同的起爆顺序和起爆延期时间下岩石的损伤规律。研究结果表明：在复合岩体中，爆破应力波叠加后，岩石Ⅰ中的应力波会覆盖岩石Ⅱ中的应力波继续传播；有效应力在岩石Ⅰ中的衰减率比岩石Ⅱ中的大，导致岩石Ⅰ中整体的有效应力比岩石Ⅱ中的小；复合岩体中两炮孔间的有效应力呈先减小后增加的趋势，且岩石Ⅰ中整体有效应力始终比岩石Ⅱ中的低；岩石的分形维数随延期时间的增加呈先减小后增大的趋势，岩石Ⅰ中的炮孔先起爆时岩石的分形维数大于岩石Ⅱ中的炮孔先起爆的情况。相关结论对类似条件的岩体工程爆破施工具有一定的参考意义。

, authors=王圣风¹, 张拥军¹, 缪玉松², 李小双³, 刘飞¹, 孙卓明¹, authorsList=王圣风, 张拥军, 缪玉松, 李小双, 刘飞, 孙卓明, authorCompany=null, correspAuthors=张拥军, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=+xO3an8w497v5ijm8RqJtQ==, magXml=lDMt9em/2R+hJ2SsMC3UwA==, pdfUrl=null, pdf=EyMKKAlyyarLuuFkVjM7Pw==, pdfFileSize=3946414, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=cN7kg3FOdIXdx7q6tCvUMQ==, mapNumber=null, fund=null)}, authors=[Author(id=1322559939172742097, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322559938233217988, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=2549845377@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322559939260822483, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322559938233217988, authorId=1322559939172742097, language=EN, stringName=Shengfeng WANG, firstName=Shengfeng, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1.School of Civil Engineering, Qingdao University of Technology, Qingdao, Shandong 266520, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322559939327931348, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322559938233217988, authorId=1322559939172742097, language=CN, stringName=王圣风, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1．青岛理工大学 土木工程学院，山东 青岛市　266520, bio={"content":"

王圣风（1999—），男，山东潍坊人，硕士研究生，主要研究方向为岩土工程。E-mail: 2549845377@qq.com

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王圣风（1999—），男，山东潍坊人，硕士研究生，主要研究方向为岩土工程。E-mail: 2549845377@qq.com

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