Article(id=1321895090130375495, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1321894989857141221, 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=1756915200000, receivedDateStr=2025-09-04, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793093949109, onlineDateStr=2026-10-27, pubDate=1787587200000, pubDateStr=2026-08-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793093949109, onlineIssueDateStr=2026-10-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793093949109, creator=13701087609, updateTime=1793093949109, updator=13701087609, issue=Issue{id=1321894989857141221, tenantId=1146029695717560320, journalId=1225396423026438145, year='2026', volume='46', issue='8', pageStart='1', pageEnd='324', issueExtLink='null', onlineDate='null', pubDate='1787587200000', pubDateStr='2026-08-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793093925203, creator='13701087609', updateTime=1793094606751, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1321897848535372687, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1321894989857141221, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1321897848535372688, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1321894989857141221, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=179, endPage=192, ext={EN=ArticleExt(id=1321895091740988232, articleId=1321895090130375495, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Experimental Study on Crack Propagation Law and Damage Characteristics of Rock Bridges in Filled Jointed Rock Masses with Different Inclination Angles, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Underground rock masses often contain fissures with different inclination angles and various fillings, and the crack propagation and failure behavior of rock bridge structures directly affect the stability of underground rock engineering. Through uniaxial compression tests on filled jointed red sandstone with different inclination angles, acoustic emission parameters (ring count, rise time, amplitude, duration) monitoring and FRACOD numerical simulation, the crack propagation law and damage mechanism of rock bridge structures in filled joints under different inclination angles of joint were systematically studied. The results show that the stress-strain curves exhibit three stages of compaction, elastic deformation and rapid stress drop. A stress surge occurs near the peak stress due to specimen slip and crack initiation. The acoustic emission signals increase significantly before and after the peak stress. The cumulative ring count shows a stepwise jump, and the abrupt increase points of its curve can effectively determine the critical point of crack initiation. The results of RA-AF analysis show that the proportion of shear cracks is the largest when inclination angle of joint is 30°, and tensile failure dominates when inclination angle of joint is 45°. With the increase of inclination angle of joint, the crack propagation mode transforms from tensile-dominated to tensile-shear composite, and then back to tensile-dominated. The FRACOD simulation results show that with the decrease of stress ratio, the horizontal stress significantly restrains the initiation and propagation range of cracks. The increase in horizontal stress significantly changes the failure mode of the rock mass by inhibiting the propagation of tensile cracks. The results reveal the mechanism of joint inclination angle on crack propagation and damage evolution of rock bridge structures, providing a theoretical basis for stability analysis of deep underground rock engineering.

, authors=Weiqiang Zhang¹, Shichuan Zhang^{1, 2}, Chenggong Wang², Zhenhua Wu², Lixin Chu², Weihua Hu³, authorsList=Weiqiang Zhang, Shichuan Zhang, Chenggong Wang, Zhenhua Wu, Lixin Chu, Weihua Hu, authorCompany=null, correspAuthors=Shichuan 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=1321895092001035081, articleId=1321895090130375495, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=含不同倾角充填节理岩体内岩桥裂纹扩展规律及损伤特征试验研究, columnId=1226462295417598973, journalTitle=矿业研究与开发, columnName=矿山安全与环保, runingTitle=null, highlight=null, articleAbstract=

地下岩体常含有不同倾角的裂隙及各类填充物，岩桥结构的裂纹扩展与破坏行为直接影响地下岩体工程的稳定性。通过不同倾角充填节理红砂岩的单轴压缩试验、声发射参数（振铃计数、上升时间、幅值、持续时间）监测及FRACOD数值模拟，系统研究了不同倾角的充填节理岩桥结构的裂纹扩展规律与损伤机制。结果表明，应力-应变曲线呈现压密、弹性变形及应力骤降三个阶段，因试样滑移及裂纹萌生，在峰值应力附近出现应力突增现象。声发射信号在峰值应力前后显著增强，累计振铃计数呈阶梯式跃升，其曲线突增点可有效判定裂纹萌生临界点。RA-AF分析结果表明，节理倾角为30°时，剪切裂纹占比最大，节理倾角为45°时以拉伸破坏为主；随着节理倾角增大，裂纹扩展模式由拉伸主导向拉剪复合再向拉伸主导转变。FRACOD模拟结果显示，随着应力比降低，水平应力显著抑制裂纹萌生与扩展范围；水平应力增大通过抑制张拉裂纹扩展，显著改变了岩体破坏模式。研究结果揭示了节理倾角对岩桥结构裂纹扩展与损伤演化的作用机制，为深部地下岩体工程的稳定性分析提供了理论依据。

, authors=张伟强¹, 张士川^{1, 2}, 王成功², 吴振华², 初立新², 胡卫华³, authorsList=张伟强, 张士川, 王成功, 吴振华, 初立新, 胡卫华, authorCompany=null, correspAuthors=张士川, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=eT/izuSdywVdoi3BJjhfhg==, magXml=dbR682HKApv1tRIZuBAOGw==, pdfUrl=null, pdf=trWFJxicsZ+UWSW6+Vbn3Q==, pdfFileSize=4298607, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=5rzIIULkSaJUGxp5qgVcYw==, mapNumber=null, fund=null)}, authors=[Author(id=1321895092441437012, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321895090130375495, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=2658958058@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1321895092516934486, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321895090130375495, authorId=1321895092441437012, language=EN, stringName=Weiqiang Zhang, firstName=Weiqiang, middleName=null, lastName=Zhang, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1.College of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1321895092579849047, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321895090130375495, authorId=1321895092441437012, language=CN, stringName=张伟强, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1．山东科技大学 能源与矿业工程学院，山东 青岛市　266590, bio={"content":"

张伟强（2001—），男，山东青岛人，硕士研究生，主要研究方向为矿山岩石力学。E-mail:2658958058@qq.com

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张伟强（2001—），男，山东青岛人，硕士研究生，主要研究方向为矿山岩石力学。E-mail:2658958058@qq.com

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