Article(id=1322594964089979718, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322594813749350688, 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=1709136000000, receivedDateStr=2024-02-29, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793260812065, onlineDateStr=2026-10-29, pubDate=1740412800000, pubDateStr=2025-02-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793260812065, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793260812065, creator=13701087609, updateTime=1793260812065, updator=13701087609, issue=Issue{id=1322594813749350688, tenantId=1146029695717560320, journalId=1225396423026438145, year='2025', volume='45', issue='2', pageStart='1', pageEnd='288', issueExtLink='null', onlineDate='null', pubDate='1740412800000', pubDateStr='2025-02-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793260776220, creator='13701087609', updateTime=1793260776220, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=184, endPage=194, ext={EN=ArticleExt(id=1322594964266140487, articleId=1322594964089979718, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Simulation Study on Energy Evolution and Failure Characteristics of Layered Composite Rock, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In geotechnical engineering, instability failure often occurs in multi-layer rock mass at the same time, and its different combinations, lithology and other factors will affect the development trend of cracks. The discrete element PFC2D software was used to establish the sample model, and the uniaxial compression experiment was simulated to reveal the influence of the proportion of soft and hard rock strata on the mechanical properties, failure characteristics and energy evolution law of rock samples. The results are drawn as follows. Firstly, the proportion of hard rock in the layered composite rock sample is the main factor affecting the peak strength of the rock sample. As the proportion of hard rock increases, the peak stress of the rock sample gradually increases. Secondly, the number of microcracks and the total input strain energy of the layered composite rock sample are the minimum when the thickness ratio (R) of the adjacent rock layer is the smallest, indicating that the decrease of R will lead to the early failure of the rock sample. Thirdly, the elastic energy consumption ratio K is introduced into the energy analysis of layered composite rock samples, and it is verified that the increase of K value would be used as an early warning signal for rock deformation and failure. Fourthly, the main failure mode of the layered composite rock sample is tension-shear mixed failure, and the macroscopic cracks generally originate in soft rock part. Then, due to the sharp increase of the transverse strain of the soft rock part, the cracks penetrate into the hard rock part, revealing that the failure of the rock sample is a process of gradual loss of bearing capacity. The research results can provide a reference for practical engineering.
, authors=Liang HU
1, Taoli XIAO
1, Haicheng SHE
1, 2, Yunfeng ZHAO
1, Yuanlong ZHENG
1, 3, authorsList=Liang HU, Taoli XIAO, Haicheng SHE, Yunfeng ZHAO, Yuanlong ZHENG, authorCompany=null, correspAuthors=Taoli XIAO, 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=1322594968846320491, articleId=1322594964089979718, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=层状复合岩的能量演化及破坏特征模拟研究, columnId=1226462295417598973, journalTitle=矿业研究与开发, columnName=矿山安全与环保, runingTitle=null, highlight=null, articleAbstract=
在岩土工程中,失稳破坏常会同时发生于多层岩体内,其不同的组合方式、岩性等因素均会影响裂纹的发展趋势。研究采用离散元PFC2D软件建立试样模型,并模拟单轴压缩试验揭示软硬岩层占比对岩样力学性质、破坏特征及能量演化规律的影响。研究表明:(1)层状复合岩样中的硬岩部分占比是影响岩样峰值强度的主要因素,随着硬岩部分占比增大,岩样的峰值应力逐渐增大;(2)层状复合岩样的微裂纹数及输入总应变能均在相邻岩层厚度比(R)最小时取得最小值,表明R的减小会导致岩样破坏的提前发生;(3)在层状复合岩样的能量分析中引入弹性能耗比K,并验证了K值的增大可以作为岩石发生变形破坏的预警信号;(4)层状复合岩样的主要破坏模式为张拉-剪切混合破坏,宏观裂纹基本起裂于软岩部分,而后由于软岩部分横向应变的急剧增大,裂纹向硬岩部分贯通,揭示岩样的破坏是一个逐步丧失承载力的过程。研究成果可为实际工程提供参考。
, authors=胡量
1, 肖桃李
1, 折海成
1, 2, 赵云峰
1, 郑远龙
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1.School of Urban Construction, Yangtze University, Jingzhou, Hubei 434023, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322594971102856057, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, authorId=1322594969374802806, language=CN, stringName=胡量, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.长江大学 城市建设学院,湖北 荆州市 434023, bio={"content":"
胡量(2000—),男,湖北咸宁人,硕士研究生,主要从事岩石力学相关研究。E-mail:1873903062@qq.com
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胡量(2000—),男,湖北咸宁人,硕士研究生,主要从事岩石力学相关研究。E-mail:1873903062@qq.com
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1.School of Urban Construction, Yangtze University, Jingzhou, Hubei 434023, China), AuthorCompanyExt(id=1322594969085395822, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, companyId=1322594969068618604, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.长江大学 城市建设学院,湖北 荆州市 434023)])]), Author(id=1322594971501314944, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, 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=1322594971669087107, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, authorId=1322594971501314944, language=EN, stringName=Haicheng SHE, firstName=Haicheng, middleName=null, lastName=SHE, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1.School of Urban Construction, Yangtze University, Jingzhou, Hubei 434023, China
2.The Key Laboratory of Well Stability and Fluid & Rock Mechanics in Oil and Gas Reservoir of Shaanxi Province, Xi'an, Shaanxi 710065, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322594971782333316, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, authorId=1322594971501314944, language=CN, stringName=折海成, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1.长江大学 城市建设学院,湖北 荆州市 434023
2.陕西省油气井及储层渗流与岩石力学重点实验室,陕西 西安 710065, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322594969068618604, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, xref=1., ext=[AuthorCompanyExt(id=1322594969077007213, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, companyId=1322594969068618604, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1.长江大学 城市建设学院,湖北 荆州市 434023)]), AuthorCompany(id=1322594969148310383, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, xref=2., ext=[AuthorCompanyExt(id=1322594969156698992, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, companyId=1322594969148310383, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2.陕西省油气井及储层渗流与岩石力学重点实验室,陕西 西安 710065)])]), Author(id=1322594971882996614, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, 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=1322594971971077000, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, authorId=1322594971882996614, language=EN, stringName=Yunfeng ZHAO, firstName=Yunfeng, middleName=null, lastName=ZHAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.School of Urban Construction, Yangtze University, Jingzhou, Hubei 434023, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322594972038185865, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, authorId=1322594971882996614, language=CN, stringName=赵云峰, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.长江大学 城市建设学院,湖北 荆州市 434023)])]), Author(id=1322594972122071947, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, orderNo=4, 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=1322594972218540942, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, authorId=1322594972122071947, language=EN, stringName=Yuanlong ZHENG, firstName=Yuanlong, middleName=null, lastName=ZHENG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 3, address=
1.School of Urban Construction, Yangtze University, Jingzhou, Hubei 434023, China
3.Zhuhai Construction Engineering Group, Zhuhai, Guangdong 519085, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322594972294038415, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, authorId=1322594972122071947, language=CN, stringName=郑远龙, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 3, address=
1.长江大学 城市建设学院,湖北 荆州市 434023
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3.珠海建工控股集团有限公司,广东 珠海市 519085)])])], keywords=[Keyword(id=1322594972436644752, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, orderNo=1, keyword=Layered composite rock), Keyword(id=1322594972554085265, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, orderNo=2, keyword=Numerical simulation), Keyword(id=1322594972642165650, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, orderNo=3, keyword=Failure characteristics), Keyword(id=1322594972721857427, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, orderNo=4, keyword=Energy evolution), Keyword(id=1322594972797354900, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, orderNo=5, keyword=Elastic energy consumption ratio), Keyword(id=1322594972860269461, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, orderNo=1, keyword=层状复合类岩石), Keyword(id=1322594972948349846, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, orderNo=2, keyword=数值模拟), Keyword(id=1322594973028041623, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, orderNo=3, keyword=破坏特征), Keyword(id=1322594973090956184, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, orderNo=4, keyword=能量演化), Keyword(id=1322594973153870745, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, orderNo=5, keyword=弹性能耗比)], refs=[Reference(id=1322594977696302013, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, doi=null, pmid=null, pmcid=null, year=2023, volume=13, issue=13, pageStart=7537, pageEnd=null, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=ZHENG Y X, ZHANG T J, YANG H T, journalName=Applied Sciences, refType=null, unstructuredReference=
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37(Suppl.1):3263-3278., articleTitle=The evolution law of the damage of bedded composite rock and its fractal characteristics, refAbstract=null)], funds=[Fund(id=1322594977474003898, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, awardId=52204201, language=CN, fundingSource=国家自然科学基金资助项目(52204201), fundOrder=null, country=null), Fund(id=1322594977541112763, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, awardId=YQZC202204, language=CN, fundingSource=油气钻采工程湖北省重点实验室开放基金项目(YQZC202204), fundOrder=null, country=null), Fund(id=1322594977604027324, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, awardId=YK323003, language=CN, fundingSource=水利部水库大坝安全重点实验室开发研究基金项目(YK323003), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1322594969068618604, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, xref=1., ext=[AuthorCompanyExt(id=1322594969077007213, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, companyId=1322594969068618604, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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Specimens, figureFileSmall=4yGldnF64Y3QFNUjIdmUaA==, figureFileBig=RZ2U75uT5uq33umBSNfGXg==, tableContent=null), ArticleFig(id=1322594973371974555, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, label=图1, caption=
试样, figureFileSmall=4yGldnF64Y3QFNUjIdmUaA==, figureFileBig=RZ2U75uT5uq33umBSNfGXg==, tableContent=null), ArticleFig(id=1322594973560718236, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, label=Fig.2, caption=
Schematic diagram of contact models FJM and SJM, figureFileSmall=/ClwXKorQIsIGAUSRSYbag==, figureFileBig=xQs5eS2KzL+AW91JCAqGYQ==, tableContent=null), ArticleFig(id=1322594973619438493, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, label=图2, caption=
接触模型FJM和SJM示意, figureFileSmall=/ClwXKorQIsIGAUSRSYbag==, figureFileBig=xQs5eS2KzL+AW91JCAqGYQ==, tableContent=null), ArticleFig(id=1322594973678158750, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, label=Fig.3, caption=
Numerical model of the laminated rock specimen, figureFileSmall=aLjch0M6/W419eQT204UWg==, figureFileBig=z33E4QA0Pj/vNTyTZuV6ug==, tableContent=null), ArticleFig(id=1322594973749461919, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, label=图3, caption=
层状类岩样数值模型, figureFileSmall=aLjch0M6/W419eQT204UWg==, figureFileBig=z33E4QA0Pj/vNTyTZuV6ug==, tableContent=null), ArticleFig(id=1322594973829153696, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, label=Fig.4, caption=
Comparison of stress-strain curves of numerical simulation experiment and laboratory test, figureFileSmall=vd3WJ3NmHqXY1dFWMQyS2g==, figureFileBig=E3qA9jHihVPVtRwIOTn+xA==, tableContent=null), ArticleFig(id=1322594975506875297, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, label=图4, caption=
数值模拟试验与室内试验的应力-应变曲线对比, figureFileSmall=vd3WJ3NmHqXY1dFWMQyS2g==, figureFileBig=E3qA9jHihVPVtRwIOTn+xA==, tableContent=null), ArticleFig(id=1322594975586567074, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, label=Fig.5, caption=
Stress-strain curves of laminated rock specimens, figureFileSmall=8wwn5tAfqgCLn4uvKvvmVQ==, figureFileBig=3tbwTZuHZqt0hBtCI9ByDg==, tableContent=null), ArticleFig(id=1322594975657870243, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, label=图5, caption=
层状类岩样应力-应变曲线, figureFileSmall=8wwn5tAfqgCLn4uvKvvmVQ==, figureFileBig=3tbwTZuHZqt0hBtCI9ByDg==, tableContent=null), ArticleFig(id=1322594975729173412, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, label=Fig.6, caption=
The relationship between energy and stress-strain curve, figureFileSmall=+TPspydhsECtpwpoGoPZ6Q==, figureFileBig=KNZwJkuCIEoVyqIYAtMk0Q==, tableContent=null), ArticleFig(id=1322594975808865189, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, label=图6, caption=
能量与应力-应变曲线的关系, figureFileSmall=+TPspydhsECtpwpoGoPZ6Q==, figureFileBig=KNZwJkuCIEoVyqIYAtMk0Q==, tableContent=null), ArticleFig(id=1322594975901139878, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, label=Fig.7, caption=
The relationship between the number of microcracks and stress-strain curves, figureFileSmall=waZvUWysSjbHDgsKqdmRqw==, figureFileBig=58SuT/KFf7BhGSocrs+GtA==, tableContent=null), ArticleFig(id=1322594975997608871, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, label=图7, caption=
试样微裂纹数与应力-应变曲线的关系, figureFileSmall=waZvUWysSjbHDgsKqdmRqw==, figureFileBig=58SuT/KFf7BhGSocrs+GtA==, tableContent=null), ArticleFig(id=1322594976064717736, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, label=Fig.8, caption=
The relationship between energy and stress-strain curves, figureFileSmall=8EyoTcouudUv2vJb3neRBQ==, figureFileBig=gz+slNlsk5FflU4p0wz9ng==, tableContent=null), ArticleFig(id=1322594976152798121, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, label=图8, caption=
试样能量与应力-应变曲线的关系, figureFileSmall=8EyoTcouudUv2vJb3neRBQ==, figureFileBig=gz+slNlsk5FflU4p0wz9ng==, tableContent=null), ArticleFig(id=1322594976228295594, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, label=Fig.9, caption=
The relationship between energy and number of microcracks, figureFileSmall=Hbxs8ZrbpDdER5qx1u/iCQ==, figureFileBig=pQTY9GhvKg4YzApq38VD7A==, tableContent=null), ArticleFig(id=1322594976299598763, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, label=图9, caption=
试样能量与裂纹数的关系, figureFileSmall=Hbxs8ZrbpDdER5qx1u/iCQ==, figureFileBig=pQTY9GhvKg4YzApq38VD7A==, tableContent=null), ArticleFig(id=1322594976370901932, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, label=Fig.10, caption=
The relationship between the energy and the number of microcracks when the specimen is loaded to the peak stress and at the end of loading, figureFileSmall=X9lQNfjSurRt1rNoaXWVRQ==, figureFileBig=0wcg1y1LGPbqmu6dSo9HVA==, tableContent=null), ArticleFig(id=1322594976442205101, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, label=图10, caption=
试样加载至峰值应力时及加载结束时的能量与微裂纹数的关系, figureFileSmall=X9lQNfjSurRt1rNoaXWVRQ==, figureFileBig=0wcg1y1LGPbqmu6dSo9HVA==, tableContent=null), ArticleFig(id=1322594976509313966, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, label=Fig.11, caption=
The relationship between the elastic energy consumption ratio K and the thickness of the middle rock layer, figureFileSmall=KmSKpoHpRZ4HsOgLdvIj3g==, figureFileBig=VC4ReYViNfbTyCO1T+K9Vw==, tableContent=null), ArticleFig(id=1322594976576422831, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, label=图11, caption=
弹性能耗比K与中部岩层层厚的关系, figureFileSmall=KmSKpoHpRZ4HsOgLdvIj3g==, figureFileBig=VC4ReYViNfbTyCO1T+K9Vw==, tableContent=null), ArticleFig(id=1322594976660308912, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, label=Fig.12, caption=
Final damage maps of laminated rock samples, figureFileSmall=rdCIc9GC9ekcwcKmv2e+Cg==, figureFileBig=MyGB3+O2SoSlhpwgbLeBtw==, tableContent=null), ArticleFig(id=1322594976752583601, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, label=图12, caption=
层状类岩样最终破坏图, figureFileSmall=rdCIc9GC9ekcwcKmv2e+Cg==, figureFileBig=MyGB3+O2SoSlhpwgbLeBtw==, tableContent=null), ArticleFig(id=1322594976832275378, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, label=Table 1, caption=
Specimen code and percentage of thickness of interlayer with intermediate rock
, figureFileSmall=null, figureFileBig=null, tableContent=
| 试样代号 | 岩层组合方式 | 夹层厚度占比/% |
|---|
| D | 类大理岩夹类砂岩 | 0 |
| D-S-20 | | 20 |
| D-S-40 | | 40 |
| D-S-60 | | 60 |
| D-S-80 | | 80 |
| S | | 100 |
| S | 类砂岩夹类大理岩 | 0 |
| S-D-20 | | 20 |
| S-D-40 | | 40 |
| S-D-60 | | 60 |
| S-D-80 | | 80 |
| D | | 100 |
), ArticleFig(id=1322594976899384243, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, label=表1, caption=
试样代号与中间岩石夹层厚度占比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 试样代号 | 岩层组合方式 | 夹层厚度占比/% |
|---|
| D | 类大理岩夹类砂岩 | 0 |
| D-S-20 | | 20 |
| D-S-40 | | 40 |
| D-S-60 | | 60 |
| D-S-80 | | 80 |
| S | | 100 |
| S | 类砂岩夹类大理岩 | 0 |
| S-D-20 | | 20 |
| S-D-40 | | 40 |
| S-D-60 | | 60 |
| S-D-80 | | 80 |
| D | | 100 |
), ArticleFig(id=1322594976962298804, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, label=Table 2, caption=
Numerical simulation model parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 细观参数 | 岩性 |
|---|
| 类大理岩 | 类砂岩 |
|---|
| 颗粒 | 最小颗粒粒径Rmin/mm | 0.3 | 0.3 |
| 颗粒粒径比Rmin/Rmax | 1.66 | 1.66 |
| 颗粒密度ρs/(kg·m–3) | 2 320 | 2 079 |
| 颗粒接触模量Ep/GPa | 6.08 | 5.03 |
| 颗粒接触刚度比(kn/ks)p | 0.61 | 1.389 |
| 颗粒摩擦因数μp | 0.5 | 0.5 |
| 平节理接触 | 半径乘子 | 1 | 1 |
| 有效模量Ep/GPa | 6.08 | 5.03 |
| 刚度比 | 0.61 | 1.389 |
| 内摩擦因数 | 0.5 | 0.5 |
| 抗拉强度/MPa | 2.68 | 6.28 |
| 黏聚力/MPa | 31.44 | 20.76 |
| 平滑节理接触 | 法向刚度/(GPa·m–1) | 500 | |
| 切向刚度/(GPa·m–1) | 500 | |
| 内摩擦因数 | 0.5 | |
| 内摩擦角/(°) | 0.7 | |
| 抗拉强度/MPa | 4.2 | |
| 黏聚力/MPa | 5.3 | |
), ArticleFig(id=1322594977041990581, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, label=表2, caption=
数值模拟模型参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 细观参数 | 岩性 |
|---|
| 类大理岩 | 类砂岩 |
|---|
| 颗粒 | 最小颗粒粒径Rmin/mm | 0.3 | 0.3 |
| 颗粒粒径比Rmin/Rmax | 1.66 | 1.66 |
| 颗粒密度ρs/(kg·m–3) | 2 320 | 2 079 |
| 颗粒接触模量Ep/GPa | 6.08 | 5.03 |
| 颗粒接触刚度比(kn/ks)p | 0.61 | 1.389 |
| 颗粒摩擦因数μp | 0.5 | 0.5 |
| 平节理接触 | 半径乘子 | 1 | 1 |
| 有效模量Ep/GPa | 6.08 | 5.03 |
| 刚度比 | 0.61 | 1.389 |
| 内摩擦因数 | 0.5 | 0.5 |
| 抗拉强度/MPa | 2.68 | 6.28 |
| 黏聚力/MPa | 31.44 | 20.76 |
| 平滑节理接触 | 法向刚度/(GPa·m–1) | 500 | |
| 切向刚度/(GPa·m–1) | 500 | |
| 内摩擦因数 | 0.5 | |
| 内摩擦角/(°) | 0.7 | |
| 抗拉强度/MPa | 4.2 | |
| 黏聚力/MPa | 5.3 | |
), ArticleFig(id=1322594977121682358, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, label=Table 3, caption=
Comparison of the results of indoor tests and numerical simulations for physical and mechanical parameters of rock samples
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩性 | 单轴抗压强度 | 弹性模量 | 泊松比 |
|---|
| 试验值/MPa | 模拟值/MPa | 误差/% | 试验值/MPa | 模拟值/MPa | 误差/% | 试验值 | 模拟值 | 误差/% |
|---|
| 类大理岩 | 71.45 | 69.71 | 2.44 | 9.23 | 9.08 | 1.63 | 0.14 | 0.14 | 0 |
| 类砂岩 | 46.81 | 44.83 | 4.23 | 6.18 | 6.29 | 1.78 | 0.27 | 0.26 | 3.70 |
), ArticleFig(id=1322594977201374135, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, label=表3, caption=
岩样物理力学参数室内试验与数值模拟的结果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩性 | 单轴抗压强度 | 弹性模量 | 泊松比 |
|---|
| 试验值/MPa | 模拟值/MPa | 误差/% | 试验值/MPa | 模拟值/MPa | 误差/% | 试验值 | 模拟值 | 误差/% |
|---|
| 类大理岩 | 71.45 | 69.71 | 2.44 | 9.23 | 9.08 | 1.63 | 0.14 | 0.14 | 0 |
| 类砂岩 | 46.81 | 44.83 | 4.23 | 6.18 | 6.29 | 1.78 | 0.27 | 0.26 | 3.70 |
), ArticleFig(id=1322594977281065912, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=EN, label=Table 4, caption=
Failure characteristics of rock samples
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩层组合方式 | 不同中间岩石夹层厚度占比的岩样破坏特征 |
|---|
| 0 | 20% | 40% | 60% | 80% | 100% |
|---|
| 类砂岩夹类大理岩 | 多拉少剪破坏 | 多拉少剪破坏 | 拉-剪混合破坏 | 拉-剪混合破坏 | 多拉少剪破坏 | 多拉少剪破坏 |
| 类大理岩夹类砂岩 | 多拉少剪破坏 | 多拉少剪破坏 | 拉-剪混合破坏 | 拉-剪混合破坏 | 多拉少剪破坏 | 多拉少剪破坏 |
), ArticleFig(id=1322594977369146297, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594964089979718, language=CN, label=表4, caption=
岩样破坏特征
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩层组合方式 | 不同中间岩石夹层厚度占比的岩样破坏特征 |
|---|
| 0 | 20% | 40% | 60% | 80% | 100% |
|---|
| 类砂岩夹类大理岩 | 多拉少剪破坏 | 多拉少剪破坏 | 拉-剪混合破坏 | 拉-剪混合破坏 | 多拉少剪破坏 | 多拉少剪破坏 |
| 类大理岩夹类砂岩 | 多拉少剪破坏 | 多拉少剪破坏 | 拉-剪混合破坏 | 拉-剪混合破坏 | 多拉少剪破坏 | 多拉少剪破坏 |
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