Article(id=1321895078944157759, 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=1754928000000, receivedDateStr=2025-08-12, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793093946442, onlineDateStr=2026-10-27, pubDate=1787587200000, pubDateStr=2026-08-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793093946442, onlineIssueDateStr=2026-10-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793093946442, creator=13701087609, updateTime=1793093946442, 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=193, endPage=205, ext={EN=ArticleExt(id=1321895079137095744, articleId=1321895078944157759, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Acousto-Optic Combined Study on Damage and Failure of Frozen Sandstone with Filling Fractures, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

In high-altitude cold regions, complex physicochemical processes such as water-ice phase transitions, ice wedging, and filler dissolution/crystallization occur within rocks, which can easily lead to irreversible damage in rocks with filling fractures, seriously threatening the safety and stability of open-pit mine slopes and transportation infrastructure in these regions. Taking frozen sandstone with filling fractures (FSFF) as the research object, the acousto-optic combined testing technique was employed to investigate the effects of fracture length and fracture angle on the macroscopic mechanical properties, surface strain field, and acoustic emission (AE) parameters of the rock samples. The results show that as the fracture length increases, the compressive strength of the rock samples exhibits a continuously decreasing trend, and the crack propagation in the rock samples is dominated by S1 and S3 type shear cracks and M type tensile-shear mixed cracks. When the fracture length is short, the sharp increase in the AE ring count of the rock samples is concentrated in the crack propagation stage. As the fracture length increases, the phenomenon of the sharp increase in the ring count extends to the elastic stage and the crack propagation stage. With the increase in the fracture angle, the compressive strength of the rock samples first decreases and then increases. The number of sharp increase events in the AE ring count within the rock samples increases, and the spatial distribution of AE events becomes increasingly dispersed. The crack propagation in the rock samples is dominated by S1, S2, and S3 type shear cracks and M type tensile-shear mixed cracks. The failure mode of FSFF is primarily shear rupture. The lower the compressive strength of the rock sample, the greater the proportion of internal shear cracks. The research results can provide a theoretical basis for the engineering stability assessment of fractured rock masses in cold regions.

, authors=Yong Zhao¹, Zongling Yan², Shengqing Kang¹, Xiaosong Zhang², Jialing Liu³, Feixue Nie³, Yonghao Yang⁴, authorsList=Yong Zhao, Zongling Yan, Shengqing Kang, Xiaosong Zhang, Jialing Liu, Feixue Nie, Yonghao Yang, authorCompany=null, correspAuthors=null, 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=1321895079388753985, articleId=1321895078944157759, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=含充填裂隙冻结砂岩损伤破坏的声光联合研究, columnId=1226462295417598973, journalTitle=矿业研究与开发, columnName=矿山安全与环保, runingTitle=null, highlight=null, articleAbstract=

高寒地区岩石内部存在水-冰相变、冰楔作用、填充物溶解/结晶等复杂物理化学作用，易导致含充填裂隙岩石产生不可逆损伤，严重威胁高寒地区露天矿边坡与交通基础设施的安全稳定。以含充填裂隙冻结砂岩（FSFF）为研究对象，采用声光联合测试技术，研究裂隙长度和裂隙倾角对岩样宏观力学特性、表面应变场及声发射（AE）参数的影响。结果表明：随裂隙长度增加，岩样抗压强度呈持续降低趋势，岩样裂纹扩展以S1、S3型剪切裂纹与M型拉伸-剪切混合裂纹为主；当裂隙长度较短时，岩样AE振铃计数的骤升集中于裂纹扩展阶段，随裂隙长度增加，岩样振铃计数骤升现象延伸至弹性阶段和裂纹扩展阶段；随裂隙倾角增大，岩样抗压强度呈先减小后增大的变化规律，岩样内部AE振铃计数骤升事件增多，声发射事件的空间分布越来越分散；岩样裂纹扩展以S1、S2、S3型剪切裂纹和M型拉伸-剪切混合裂纹为主；含冻结充填裂隙砂岩破坏模式以剪切破裂为主，岩样的抗压强度越低，内部剪切裂纹所占比例越大。研究结果可为寒区裂隙岩体的工程稳定性评估提供理论依据。

, authors=赵勇¹, 阎宗岭², 康胜清¹, 张小松², 刘佳龄³, 聂飞雪³, 杨永浩⁴, authorsList=赵勇, 阎宗岭, 康胜清, 张小松, 刘佳龄, 聂飞雪, 杨永浩, authorCompany=null, correspAuthors=null, authorNote=, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=eC4sw1Yg3JB8Kf2KcBDK+g==, magXml=IJR9/co2xnx4Eys6cqbvuA==, pdfUrl=null, pdf=b9Gy8PghklTX0eb2QMBYrw==, pdfFileSize=5088579, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=80doPE2GE1CFkbGsfoMEcg==, mapNumber=null, fund=null)}, authors=[Author(id=1321895080189866065, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321895078944157759, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=zhaoyong@cegc.com.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1321895080273752147, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321895078944157759, authorId=1321895080189866065, language=EN, stringName=Yong Zhao, firstName=Yong, middleName=null, lastName=Zhao, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1.Chongqing Expressway Construction Management Co., Ltd., Chongqing 401147, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1321895080361832532, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1321895078944157759, authorId=1321895080189866065, language=CN, stringName=赵勇, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1．重庆高速建设管理有限公司，重庆　401147, bio={"content":"

赵勇（1978—），男，湖北公安人，硕士，高级工程师，主要从事高速公路建设与运营管理方向的研究工作。E-mail:zhaoyong@cegc.com.cn

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赵勇（1978—），男，湖北公安人，硕士，高级工程师，主要从事高速公路建设与运营管理方向的研究工作。E-mail:zhaoyong@cegc.com.cn

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