Article(id=1322559866409959452, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559853093048851, 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=1739289600000, receivedDateStr=2025-02-12, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793252444125, onlineDateStr=2026-10-29, pubDate=1771948800000, pubDateStr=2026-02-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793252444125, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793252444125, creator=13701087609, updateTime=1793252444125, updator=13701087609, issue=Issue{id=1322559853093048851, tenantId=1146029695717560320, journalId=1225396423026438145, year='2026', volume='46', issue='2', pageStart='1', pageEnd='326', issueExtLink='null', onlineDate='null', pubDate='1771948800000', pubDateStr='2026-02-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793252440951, creator='13701087609', updateTime=1793252699964, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322560939526828556, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559853093048851, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322560939526828557, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559853093048851, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=11, endPage=20, ext={EN=ArticleExt(id=1322559866539982877, articleId=1322559866409959452, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Cumulative Damage Effect and Support Optimization of Surrounding Rock for High-Stress Roadway Under Cyclic Blasting Excavation, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Blasting damage of surrounding rock is recognized as one of the key factors inducing roadway instability. For the roadways in Jinfeng Gold Mine with a burial depth of over 800 m, a numerical model of full-section blasting excavation was established by means of ANSYS/LS-DYNA, and five rounds of simulation calculations for full-section blasting excavation were carried out. Four typical positions were selected on the roadway section to analyze the cumulative damage effect of multiple blasting events on the surrounding rock. Based on the distribution characteristics of surrounding rock damage, a support method consisting of surrounding rock grouting+long anchor bolts+metal mesh+shotcrete was proposed, and its field application was carried out. The results show that in a single full-section blasting excavation, the blasting vibration from the first two blasting stages causes the expansion of the surrounding rock damage zone, which in turn leads to an accelerated increase in the displacement and damage of the surrounding rock during the last two blasting stages. During multiple full-section blasting excavations, existing damage zones invade the rock mass to be excavated in subsequent blasting operations. The new and existing damage zones connect and coalesce, and their expansion is accelerated, with the scope of the new damage zones increasing by approximately 20% compared with that of the previous blasting round. After the optimization of the support scheme, the reduction rates of convergence displacement of the roadway roof and floor and its two sidewalls reach 41.37% and 42.03% respectively. Anchor pull-out tests indicate that the anchor displacement of the new support scheme is reduced by 37.2% compared with that of the original support scheme, and the anchor rebound coefficient is significantly improved. This study can provide a reference for the calculation of surrounding rock damage and support design in excavation blasting of deep high-stress roadways.

, authors=Bo XING¹, Yujun ZUO¹, Qinggang CHEN¹, Lujing ZHENG², Kaiyue JIN², authorsList=Bo XING, Yujun ZUO, Qinggang CHEN, Lujing ZHENG, Kaiyue JIN, authorCompany=null, correspAuthors=Yujun ZUO, 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=1322559866896498718, articleId=1322559866409959452, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=高应力巷道循环爆破开挖的围岩累积损伤效应及支护改进, columnId=1226462294582936453, journalTitle=矿业研究与开发, columnName=深部、深海矿产资源勘探与开发, runingTitle=null, highlight=null, articleAbstract=

围岩爆破损伤是诱发巷道失稳的重要因素之一。针对锦丰金矿埋深超800 m的巷道，通过ANSYS/LS-DYNA建立全断面爆破开挖的数值模型，进行了5次全断面爆破开挖模拟计算，在巷道断面上选取4个典型位置，分析多次爆破对围岩的累积损伤作用。基于围岩损伤分布特征，提出“围岩注浆+长锚杆+金属网+喷射混凝土”的支护方式，并进行了现场应用。结果表明：在单次全断面爆破中，前两段爆破振动会诱发围岩损伤区扩展，导致后两段爆破时围岩位移与损伤加速增大；多次全断面爆破中，既有损伤区会侵入后续爆破开挖岩体范围，新、旧损伤区贯通并加速扩展，新损伤区范围较前次增大约20%；优化支护方案后，巷道顶底板和两帮的收敛位移量降幅分别达41.37%和42.03%；锚杆拉拔试验表明，新支护方案的锚杆位移量较原支护方案的锚杆位移量减少了37.2%，且锚杆回弹系数显著提升。研究可为深部高应力巷道掘进爆破的围岩损伤计算与支护设计提供参考。

, authors=幸波¹, 左宇军¹, 陈庆港¹, 郑禄璟², 金开玥², authorsList=幸波, 左宇军, 陈庆港, 郑禄璟, 金开玥, authorCompany=null, correspAuthors=左宇军, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=4WN3E3B6aBIY+VbrCNymgQ==, magXml=ZQoguVQy7qych3Ai/8uzCA==, pdfUrl=null, pdf=Dzpss80xttJwnghYb/5ccA==, pdfFileSize=3122897, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=T2aLjkPeD/e9f9wQ5uT2fA==, mapNumber=null, fund=null)}, authors=[Author(id=1322559867240431654, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322559866409959452, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=Gzu_Xingbo@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322559867303346216, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322559866409959452, authorId=1322559867240431654, language=EN, stringName=Bo XING, firstName=Bo, middleName=null, lastName=XING, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1.College of Mining, Guizhou University, Guiyang, Guizhou 550025, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322559867362066473, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322559866409959452, authorId=1322559867240431654, language=CN, stringName=幸波, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1．贵州大学 矿业学院，贵州 贵阳　550025, bio={"content":"

幸波（1994—），男，四川宜宾人，硕士，主要从事矿山开采技术研究。E-mail:Gzu_Xingbo@163.com

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幸波（1994—），男，四川宜宾人，硕士，主要从事矿山开采技术研究。E-mail:Gzu_Xingbo@163.com

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