Article(id=1209811349371220550, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1209811339510411616, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2406811, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1725897600000, receivedDateStr=2024-09-10, revisedDate=1734883200000, revisedDateStr=2024-12-23, acceptedDate=null, acceptedDateStr=null, onlineDate=1766371102897, onlineDateStr=2025-12-22, pubDate=1751904000000, pubDateStr=2025-07-08, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1766371102897, onlineIssueDateStr=2025-12-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1766371102897, creator=13701087609, updateTime=1766371102897, updator=13701087609, issue=Issue{id=1209811339510411616, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='19', pageStart='7885', pageEnd='8315', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1766371100547, creator=13701087609, updateTime=1766373228996, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1209820266960654935, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1209811339510411616, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1209820266960654936, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1209811339510411616, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=8013, endPage=8024, ext={EN=ArticleExt(id=1209811350398825069, articleId=1209811349371220550, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Strain Rate Effect on Failure Characteristic and Crack Propagation Law of Sandstone, columnId=1209811348519784568, journalTitle=Science Technology and Engineering, columnName=Papers∙Mining and Metallurgical Engineering, runingTitle=null, highlight=null, articleAbstract=
In order to reveal the influence of strain rates on the macroscopic failure characteristics and microscopic crack propagation laws of rock, sandstone was taken as the research object, and the uniaxial compression tests and real-time monitoring of acoustic emission information were carried out under different loading rates. The influence of loading rates on the macroscopic mechanical response and microscopic fracture morphology of sandstone specimens, such as strength and deformation characteristics, failure mode and fracture characteristics, was analyzed. Based on the evolution of acoustic emission b value with the loading process, the internal crack propagation laws of sandstone specimens under different loading rates were explored. The research results show that within the loading rate range of 1×10-5~1×10-2 s-1, the uniaxial compressive strength and elastic modulus of sandstone samples were positively correlated with loading rates. For every 10 times increase in loading rate, the uniaxial compressive strength and elastic modulus increased by 2.66 MPa and 0.087 GPa, respectively, while the peak strain decreases by 0.213‰. As the loading rate increased, the failure characteristics showed a trend of gradually transitioning from a single inclined through fracture surface to a cross distribution of multiple fracture surfaces, and the average size of the fragments decreased, indicating an increase in the failure of the sandstone sample. At low loading rates, the microstructure of the fracture surface was mainly characterized by intergranular cracks, while as the loading rate increased, transgranular cracks and intergranular cracks alternated, and the fracture characteristics at the intersection of the cracks were obvious, resulting in large-scale grain peeling. As the loading rate increased, the ratio of stress to peak stress corresponding to the turning point where the acoustic emission b value changes from increasing to decreasing decreased. This indicated that the higher the loading rate, the more likely cracks were to propagate inside the specimen and form more obvious large cracks, leading to more severe damage characteristics and complex crack propagation patterns in the specimen. The research results have important guiding significance for understanding the failure characteristics of engineering surrounding rock under complex stress conditions, as well as predicting the damage deterioration law of the internal structure of surrounding rock based on acoustic emission monitoring information.
, correspAuthors=Hai-long WANG, 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, authorCompany=null, fund=null, authors=null, authorsList=Dong-yi LIU, Zhen-hua ZHAO, Hai-jiao WANG, Nian-chun LI, Shu-ming QI, Hai-long WANG), CN=ArticleExt(id=1209811354618295108, articleId=1209811349371220550, tenantId=1146029695717560320, journalId=1146123166801305609, language=CN, title=砂岩破坏特征及裂纹扩展规律的应变率效应, columnId=1209811350482711154, journalTitle=科学技术与工程, columnName=论文∙矿冶工程, runingTitle=null, highlight=null, articleAbstract=
为揭示应变率对岩石宏观破坏特征及微观裂纹扩展规律的影响,以砂岩为研究对象,开展了不同加载速率条件下的单轴压缩试验与声发射信息实时监测,分析了加载速率对砂岩试样强度和变形特性、破坏模式、破碎特征等宏观力学响应及微观断口形貌的影响,并基于声发射b值随加载过程的演化,探讨了不同加载速率条件下的砂岩试样内部裂纹扩展规律。研究结果表明:在1×10-5~1×10-2 s-1的加载速率范围内,砂岩试样的单轴抗压强度、弹性模量与加载速率呈正相关关系,加载速率每增大10倍,单轴抗压强度与弹性模量分别增大2.66 MPa和0.087 GPa,而峰值应变减小0.213‰;随加载速率增大,破坏特征呈现从单一倾斜的贯穿断裂面,逐渐向多断裂面交叉分布形式转变的趋势,且碎块平均尺寸减小,表明砂岩试样的破坏程度增大;低加载速率下的微观断口形貌以沿晶裂纹为主,而随加载速率增大,穿晶裂纹与沿晶裂纹交替出现,且裂纹相交位置破碎特征明显,出现晶粒的大面积剥离;随加载速率增大,声发射b值从增大变减小的转折点所对应的应力与峰值应力的比值降低,表明加载速率越大,试样内部越易出现裂纹的扩展,并贯通形成较为明显的大裂纹,导致试样呈现出更为严重的破坏特征和复杂的裂纹扩展规律。研究结果对认识复杂应力条件下工程围岩的破坏特征,以及基于声发射监测信息预测围岩内部结构的损伤劣化规律具有重要指导意义。
, correspAuthors=王海龙, authorNote=null, correspAuthorsNote=
*王海龙(1987—),男,汉族,山东威海人,博士(后),教授。研究方向:矿山岩石力学与采煤塌陷地治理。E-mail:
whlmlp@163.com。
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, authorsList=刘东义, 赵振华, 王海焦, 李念春, 齐树明, 王海龙)}, authors=[Author(id=1209888927163486668, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=dongyiliu2023@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1209888927247372756, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, authorId=1209888927163486668, language=EN, stringName=Dong-yi LIU, firstName=Dong-yi, middleName=null, lastName=LIU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1 Shandong Provincial Geo-mineral Engineering Exploration Institute (801 Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources), Jinan 250014, China
2 Shandong Provincial Groundwater Environmental Protection and Remediation Engineering Technology Research Center, Jinan 250014, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1209888927352230361, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, authorId=1209888927163486668, language=CN, stringName=刘东义, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 山东省地矿工程勘察院(山东省地质矿产勘查开发局八○一水文地质工程地质大队), 济南 250014
2 山东省地下水环境保护与修复工程技术研究中心, 济南 250014, bio={"content":"
刘东义(1986—),男,汉族,河北景县人,硕士,高级工程师。研究方向:地质矿产勘查。E-mail:dongyiliu2023@163.com。
"}, bioImg=null, bioContent=
刘东义(1986—),男,汉族,河北景县人,硕士,高级工程师。研究方向:地质矿产勘查。E-mail:dongyiliu2023@163.com。
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1 Shandong Provincial Geo-mineral Engineering Exploration Institute (801 Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources), Jinan 250014, China), AuthorCompanyExt(id=1209888926806970798, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, companyId=1209888926794387884, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 山东省地矿工程勘察院(山东省地质矿产勘查开发局八○一水文地质工程地质大队), 济南 250014)]), AuthorCompany(id=1209888926886662579, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, xref=2, ext=[AuthorCompanyExt(id=1209888926895051187, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, companyId=1209888926886662579, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 Shandong Provincial Groundwater Environmental Protection and Remediation Engineering Technology Research Center, Jinan 250014, China), AuthorCompanyExt(id=1209888926903439796, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, companyId=1209888926886662579, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 山东省地下水环境保护与修复工程技术研究中心, 济南 250014)])]), Author(id=1209888927440310754, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1209888927511613928, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, authorId=1209888927440310754, language=EN, stringName=Zhen-hua ZHAO, firstName=Zhen-hua, middleName=null, lastName=ZHAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1 Shandong Provincial Geo-mineral Engineering Exploration Institute (801 Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources), Jinan 250014, China
2 Shandong Provincial Groundwater Environmental Protection and Remediation Engineering Technology Research Center, Jinan 250014, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1209888927599694315, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, authorId=1209888927440310754, language=CN, stringName=赵振华, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 山东省地矿工程勘察院(山东省地质矿产勘查开发局八○一水文地质工程地质大队), 济南 250014
2 山东省地下水环境保护与修复工程技术研究中心, 济南 250014, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1209888926794387884, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, xref=1, ext=[AuthorCompanyExt(id=1209888926798582189, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, companyId=1209888926794387884, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 Shandong Provincial Geo-mineral Engineering Exploration Institute (801 Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources), Jinan 250014, China), AuthorCompanyExt(id=1209888926806970798, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, companyId=1209888926794387884, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 山东省地矿工程勘察院(山东省地质矿产勘查开发局八○一水文地质工程地质大队), 济南 250014)]), AuthorCompany(id=1209888926886662579, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, xref=2, ext=[AuthorCompanyExt(id=1209888926895051187, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, companyId=1209888926886662579, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 Shandong Provincial Groundwater Environmental Protection and Remediation Engineering Technology Research Center, Jinan 250014, China), AuthorCompanyExt(id=1209888926903439796, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, companyId=1209888926886662579, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 山东省地下水环境保护与修复工程技术研究中心, 济南 250014)])]), Author(id=1209888927704551924, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1209888927834575354, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, authorId=1209888927704551924, language=EN, stringName=Hai-jiao WANG, firstName=Hai-jiao, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1 Shandong Provincial Geo-mineral Engineering Exploration Institute (801 Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources), Jinan 250014, China
2 Shandong Provincial Groundwater Environmental Protection and Remediation Engineering Technology Research Center, Jinan 250014, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1209888927960404482, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, authorId=1209888927704551924, language=CN, stringName=王海焦, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 山东省地矿工程勘察院(山东省地质矿产勘查开发局八○一水文地质工程地质大队), 济南 250014
2 山东省地下水环境保护与修复工程技术研究中心, 济南 250014, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1209888926794387884, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, xref=1, ext=[AuthorCompanyExt(id=1209888926798582189, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, companyId=1209888926794387884, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 Shandong Provincial Geo-mineral Engineering Exploration Institute (801 Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources), Jinan 250014, China), AuthorCompanyExt(id=1209888926806970798, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, companyId=1209888926794387884, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 山东省地矿工程勘察院(山东省地质矿产勘查开发局八○一水文地质工程地质大队), 济南 250014)]), AuthorCompany(id=1209888926886662579, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, xref=2, ext=[AuthorCompanyExt(id=1209888926895051187, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, companyId=1209888926886662579, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 Shandong Provincial Groundwater Environmental Protection and Remediation Engineering Technology Research Center, Jinan 250014, China), AuthorCompanyExt(id=1209888926903439796, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, companyId=1209888926886662579, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 山东省地下水环境保护与修复工程技术研究中心, 济南 250014)])]), Author(id=1209888928052679177, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1209888928157536786, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, authorId=1209888928052679177, language=EN, stringName=Nian-chun LI, firstName=Nian-chun, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1 Shandong Provincial Geo-mineral Engineering Exploration Institute (801 Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources), Jinan 250014, China
2 Shandong Provincial Groundwater Environmental Protection and Remediation Engineering Technology Research Center, Jinan 250014, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1209888928245617176, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, authorId=1209888928052679177, language=CN, stringName=李念春, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1 山东省地矿工程勘察院(山东省地质矿产勘查开发局八○一水文地质工程地质大队), 济南 250014
2 山东省地下水环境保护与修复工程技术研究中心, 济南 250014, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1209888926794387884, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, xref=1, ext=[AuthorCompanyExt(id=1209888926798582189, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, companyId=1209888926794387884, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1 山东省地矿工程勘察院(山东省地质矿产勘查开发局八○一水文地质工程地质大队), 济南 250014)]), AuthorCompany(id=1209888926886662579, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, xref=2, ext=[AuthorCompanyExt(id=1209888926895051187, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, companyId=1209888926886662579, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1 Shandong Provincial Geo-mineral Engineering Exploration Institute (801 Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources), Jinan 250014, China
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1 Shandong Provincial Geo-mineral Engineering Exploration Institute (801 Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources), Jinan 250014, China
2 Shandong Provincial Groundwater Environmental Protection and Remediation Engineering Technology Research Center, Jinan 250014, China
3 School of Civil Engineering and Architecture, Linyi University, Linyi 276000, China
4 State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1209888928908317245, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, authorId=1209888928698602029, language=CN, stringName=王海龙, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2 山东省地下水环境保护与修复工程技术研究中心, 济南 250014
3 临沂大学土木工程与建筑学院, 临沂 276000
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b-value of acoustic emission for rock fracture, refAbstract=null)], funds=[Fund(id=1209888933035512548, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, awardId=2022M711969, language=CN, fundingSource=中国博士后科学基金(2022M711969), fundOrder=null, country=null), Fund(id=1209888933131981545, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, awardId=2022KJ112, language=CN, fundingSource=山东省高等学校青年创新团队项目(2022KJ112), fundOrder=null, country=null), Fund(id=1209888933199090410, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, awardId=ZR2021QD091, language=CN, fundingSource=山东省自然科学基金(ZR2021QD091), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1209888926794387884, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, xref=1, ext=[AuthorCompanyExt(id=1209888926798582189, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, companyId=1209888926794387884, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 Shandong Provincial Geo-mineral Engineering Exploration Institute (801 Institute of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources), Jinan 250014, China), AuthorCompanyExt(id=1209888926806970798, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, companyId=1209888926794387884, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 山东省地矿工程勘察院(山东省地质矿产勘查开发局八○一水文地质工程地质大队), 济南 250014)]), AuthorCompany(id=1209888926886662579, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, xref=2, ext=[AuthorCompanyExt(id=1209888926895051187, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, companyId=1209888926886662579, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3 临沂大学土木工程与建筑学院, 临沂 276000)]), AuthorCompany(id=1209888927079600578, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, xref=4, ext=[AuthorCompanyExt(id=1209888927083794883, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, companyId=1209888927079600578, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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4 中国矿业大学(北京) 深部岩土力学与地下工程国家重点实验室, 北京 100083)])], figs=[ArticleFig(id=1209888930288243313, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=EN, label=Fig.1, caption=
Microstructure of sandstone, figureFileSmall=PEqsVlvSyqdBEmL/xVhi7g==, figureFileBig=4Qa4bRkqvpzJTWgd/j+itw==, tableContent=null), ArticleFig(id=1209888930388906615, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=CN, label=图1, caption=
砂岩的微观结构, figureFileSmall=PEqsVlvSyqdBEmL/xVhi7g==, figureFileBig=4Qa4bRkqvpzJTWgd/j+itw==, tableContent=null), ArticleFig(id=1209888930485375611, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=EN, label=Fig.2, caption=
Preparation process of sandstone samples, figureFileSmall=4j6ecwbwDSGEWmuVJ4TdbQ==, figureFileBig=cyAoLmXTHAiKcAyLzbOshA==, tableContent=null), ArticleFig(id=1209888930548290174, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=CN, label=图2, caption=
砂岩试样的制备过程, figureFileSmall=4j6ecwbwDSGEWmuVJ4TdbQ==, figureFileBig=cyAoLmXTHAiKcAyLzbOshA==, tableContent=null), ArticleFig(id=1209888930665730693, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=EN, label=Fig.3, caption=
Density and P-wave velocity of sandstone samples, figureFileSmall=VyBQsUUUFfa8r4YD8Wms7w==, figureFileBig=1xCg/J2yqIH12iNbg7IR1A==, tableContent=null), ArticleFig(id=1209888930762199688, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=CN, label=图3, caption=
砂岩试样的密度和波速分布, figureFileSmall=VyBQsUUUFfa8r4YD8Wms7w==, figureFileBig=1xCg/J2yqIH12iNbg7IR1A==, tableContent=null), ArticleFig(id=1209888930846085771, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=EN, label=Fig.4, caption=
Classification of loading by strain rate, figureFileSmall=+7ExAao/avNRqkph0GhFZw==, figureFileBig=N3L9AXlvU2by8DsTDOhUvA==, tableContent=null), ArticleFig(id=1209888931009663630, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=CN, label=图4, caption=
按照应变率划分的加载类型, figureFileSmall=+7ExAao/avNRqkph0GhFZw==, figureFileBig=N3L9AXlvU2by8DsTDOhUvA==, tableContent=null), ArticleFig(id=1209888931101938323, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=EN, label=Fig.5, caption=
Mechanical loading system and acoustic emission monitoring system, figureFileSmall=vnGu1eaT265grnhhBfrLuA==, figureFileBig=Zt1OCDUohoy/5Xof++jMAQ==, tableContent=null), ArticleFig(id=1209888931173241495, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=CN, label=图5, caption=
力学加载系统及声发射监测系统, figureFileSmall=vnGu1eaT265grnhhBfrLuA==, figureFileBig=Zt1OCDUohoy/5Xof++jMAQ==, tableContent=null), ArticleFig(id=1209888931265516182, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=EN, label=Fig.6, caption=
Fitting between peak strength, elastic modulus, peak strain and loading rates, figureFileSmall=7bB7YriHRrTJvtLUTjb0EQ==, figureFileBig=/pbSyJwwI6pSmncTL609qA==, tableContent=null), ArticleFig(id=1209888931336819354, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=CN, label=图6, caption=
峰值强度、弹性模量、峰值应变与加载速率的拟合, figureFileSmall=7bB7YriHRrTJvtLUTjb0EQ==, figureFileBig=/pbSyJwwI6pSmncTL609qA==, tableContent=null), ArticleFig(id=1209888931403928222, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=EN, label=Fig.7, caption=
Failure mode of sandstone samples, figureFileSmall=nvBwp+uBurYmjPNOgzm8eg==, figureFileBig=L7gxjNAp3wQnE2YxXCAVoQ==, tableContent=null), ArticleFig(id=1209888931496202914, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=CN, label=图7, caption=
砂岩试样的破坏模式, figureFileSmall=nvBwp+uBurYmjPNOgzm8eg==, figureFileBig=L7gxjNAp3wQnE2YxXCAVoQ==, tableContent=null), ArticleFig(id=1209888931571700388, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=EN, label=Fig.8, caption=
Mass distribution of different size fragments, figureFileSmall=zN0fRQSXxaDgGYXS+UwLdA==, figureFileBig=TFGS2S0meE3XBbpETZdL/w==, tableContent=null), ArticleFig(id=1209888931630420647, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=CN, label=图8, caption=
不同尺寸区间碎块的质量分布, figureFileSmall=zN0fRQSXxaDgGYXS+UwLdA==, figureFileBig=TFGS2S0meE3XBbpETZdL/w==, tableContent=null), ArticleFig(id=1209888931722695339, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=EN, label=Fig.9, caption=
Mean size of rock fragments at different loading rates, figureFileSmall=jofyPwLuNRynVHijEiYjaQ==, figureFileBig=eW4E6XftSGWzMD9rYKEBpQ==, tableContent=null), ArticleFig(id=1209888931814970031, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=CN, label=图9, caption=
不同加载速率下的碎块平均尺寸, figureFileSmall=jofyPwLuNRynVHijEiYjaQ==, figureFileBig=eW4E6XftSGWzMD9rYKEBpQ==, tableContent=null), ArticleFig(id=1209888931898856115, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=EN, label=Fig.10, caption=
Microscopic morphology of sandstone samples, figureFileSmall=ZMix00jfqMZRXvEI8eDg+w==, figureFileBig=AmDBm2o+W6BeLffc7KsIFw==, tableContent=null), ArticleFig(id=1209888931982742201, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=CN, label=图10, caption=
砂岩试样的微观断口形貌, figureFileSmall=ZMix00jfqMZRXvEI8eDg+w==, figureFileBig=AmDBm2o+W6BeLffc7KsIFw==, tableContent=null), ArticleFig(id=1209888932083405500, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=EN, label=Fig.11, caption=
Evolution of b-value at different loading rates, figureFileSmall=FDFa5aRUNoEAPgMOaR8q9A==, figureFileBig=pk2fikCABTsT9Vw25HQ7ow==, tableContent=null), ArticleFig(id=1209888932184068803, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=CN, label=图11, caption=
不同加载速率下的声发射b值演化, figureFileSmall=FDFa5aRUNoEAPgMOaR8q9A==, figureFileBig=pk2fikCABTsT9Vw25HQ7ow==, tableContent=null), ArticleFig(id=1209888932297315014, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=EN, label=Fig.12, caption=
Critical stress ratio of crack growth at different loading rates, figureFileSmall=Ja9PoIDWJSqBlRC8eyW+BQ==, figureFileBig=r1A5+BotilJwDfrF7UZzqw==, tableContent=null), ArticleFig(id=1209888932393784010, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=CN, label=图12, caption=
不同加载速率下裂纹扩展的临界应力比, figureFileSmall=Ja9PoIDWJSqBlRC8eyW+BQ==, figureFileBig=r1A5+BotilJwDfrF7UZzqw==, tableContent=null), ArticleFig(id=1209888932519613135, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=EN, label=Table 1, caption=
Mechanical parameters of sandstone samples at different strain rates
, figureFileSmall=null, figureFileBig=null, tableContent=
试样 编号 | 峰值强度/MPa | | 弹性模量/GPa | | 峰值应变/‰ |
| S1 | S2 | S3 | S1 | S2 | S3 | S1 | S2 | S3 |
| A组 | 45.7 | 44.3 | 45.1 | | 5.11 | 5.04 | 5.12 | | 9.38 | 9.29 | 9.44 |
| B组 | 46.2 | 47.3 | 45.9 | | 5.21 | 5.16 | 5.11 | | 9.15 | 9.11 | 9.10 |
| C组 | 48.1 | 49.7 | 50.2 | | 5.29 | 5.21 | 5.31 | | 8.96 | 9.01 | 8.76 |
| D组 | 52.9 | 53.6 | 52.3 | | 5.31 | 5.29 | 5.36 | | 8.65 | 8.79 | 8.75 |
), ArticleFig(id=1209888932620276435, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=CN, label=表1, caption=
不同应变率加载下砂岩试样的力学参数
, figureFileSmall=null, figureFileBig=null, tableContent=
试样 编号 | 峰值强度/MPa | | 弹性模量/GPa | | 峰值应变/‰ |
| S1 | S2 | S3 | S1 | S2 | S3 | S1 | S2 | S3 |
| A组 | 45.7 | 44.3 | 45.1 | | 5.11 | 5.04 | 5.12 | | 9.38 | 9.29 | 9.44 |
| B组 | 46.2 | 47.3 | 45.9 | | 5.21 | 5.16 | 5.11 | | 9.15 | 9.11 | 9.10 |
| C组 | 48.1 | 49.7 | 50.2 | | 5.29 | 5.21 | 5.31 | | 8.96 | 9.01 | 8.76 |
| D组 | 52.9 | 53.6 | 52.3 | | 5.31 | 5.29 | 5.36 | | 8.65 | 8.79 | 8.75 |
), ArticleFig(id=1209888932708356822, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=EN, label=Table 2, caption=
Size statistics of sandstone fragments
, figureFileSmall=null, figureFileBig=null, tableContent=
加载 速率/s-1 | 试样编号 | 不同尺寸(mm)岩块和岩屑的质量/g |
| <0.15 | 0.15~0.6 | 0.6~2.36 | 2.36~9.5 | 9.5~13.2 | 13.2~37.5 | 37.5~72 |
| 1×10-5 | A组 | S1 | 6.17 | 13.71 | 21.63 | 20.65 | 45.07 | 110.97 | 356.78 |
| S2 | 5.63 | 9.32 | 10.17 | 15.89 | 55.76 | 87.76 | 402.57 |
| S3 | 9.32 | 8.21 | 17.69 | 29.07 | 69.67 | 126.27 | 383.19 |
| 1×10-4 | B组 | S1 | 15.32 | 27.53 | 58.78 | 51.47 | 66.39 | 91.52 | 306.93 |
| S2 | 16.27 | 19.19 | 37.28 | 75.15 | 85.02 | 158.87 | 216.81 |
| S3 | 10.21 | 33.47 | 67.36 | 54.09 | 83.27 | 106.09 | 277.76 |
| 1×10-3 | C组 | S1 | 21.51 | 56.63 | 54.97 | 92.01 | 73.58 | 154.49 | 179.76 |
| S2 | 26.86 | 39.49 | 63.81 | 92.98 | 108.67 | 121.43 | 181.78 |
| S3 | 19.13 | 38.72 | 88.13 | 73.93 | 9.663 | 158.96 | 216.38 |
| 1×10-2 | D组 | S1 | 28.62 | 54.31 | 78.17 | 112.56 | 100.63 | 102.56 | 143.01 |
| S2 | 31.07 | 57.17 | 85.56 | 72.13 | 94.57 | 135.13 | 174.32 |
| S3 | 27.91 | 35.99 | 66.62 | 86.95 | 129.31 | 92.75 | 157.28 |
), ArticleFig(id=1209888932792242905, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1209811349371220550, language=CN, label=表2, caption=
砂岩碎块的尺寸统计
, figureFileSmall=null, figureFileBig=null, tableContent=
加载 速率/s-1 | 试样编号 | 不同尺寸(mm)岩块和岩屑的质量/g |
| <0.15 | 0.15~0.6 | 0.6~2.36 | 2.36~9.5 | 9.5~13.2 | 13.2~37.5 | 37.5~72 |
| 1×10-5 | A组 | S1 | 6.17 | 13.71 | 21.63 | 20.65 | 45.07 | 110.97 | 356.78 |
| S2 | 5.63 | 9.32 | 10.17 | 15.89 | 55.76 | 87.76 | 402.57 |
| S3 | 9.32 | 8.21 | 17.69 | 29.07 | 69.67 | 126.27 | 383.19 |
| 1×10-4 | B组 | S1 | 15.32 | 27.53 | 58.78 | 51.47 | 66.39 | 91.52 | 306.93 |
| S2 | 16.27 | 19.19 | 37.28 | 75.15 | 85.02 | 158.87 | 216.81 |
| S3 | 10.21 | 33.47 | 67.36 | 54.09 | 83.27 | 106.09 | 277.76 |
| 1×10-3 | C组 | S1 | 21.51 | 56.63 | 54.97 | 92.01 | 73.58 | 154.49 | 179.76 |
| S2 | 26.86 | 39.49 | 63.81 | 92.98 | 108.67 | 121.43 | 181.78 |
| S3 | 19.13 | 38.72 | 88.13 | 73.93 | 9.663 | 158.96 | 216.38 |
| 1×10-2 | D组 | S1 | 28.62 | 54.31 | 78.17 | 112.56 | 100.63 | 102.56 | 143.01 |
| S2 | 31.07 | 57.17 | 85.56 | 72.13 | 94.57 | 135.13 | 174.32 |
| S3 | 27.91 | 35.99 | 66.62 | 86.95 | 129.31 | 92.75 | 157.28 |
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