Article(id=1244316349648978045, tenantId=1146029695717560320, journalId=1244215477623373855, issueId=1244316342938087728, articleNumber=null, orderNo=null, doi=10.16285/j.rsm.2024.1581, pmid=null, cstr=32223.14.j.rsm.2024.1581, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1734796800000, receivedDateStr=2024-12-22, revisedDate=null, revisedDateStr=null, acceptedDate=1742400000000, acceptedDateStr=2025-03-20, onlineDate=1774597736035, onlineDateStr=2026-03-27, pubDate=1763049600000, pubDateStr=2025-11-14, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1774597736035, onlineIssueDateStr=2026-03-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774597736035, creator=13701087609, updateTime=1774597736035, updator=13701087609, issue=Issue{id=1244316342938087728, tenantId=1146029695717560320, journalId=1244215477623373855, year='2025', volume='46', issue='11', pageStart='3329', pageEnd='3672', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1774597734436, creator=13701087609, updateTime=1774597825220, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1244316723801862468, tenantId=1146029695717560320, journalId=1244215477623373855, issueId=1244316342938087728, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1244316723806056773, tenantId=1146029695717560320, journalId=1244215477623373855, issueId=1244316342938087728, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=3501, endPage=3512, ext={EN=ArticleExt(id=1244316351322505352, articleId=1244316349648978045, tenantId=1146029695717560320, journalId=1244215477623373855, language=EN, title=Synergistic failure characteristics of rock-backfill composite with different loading rates, columnId=1244316343936332083, journalTitle=Rock and Soil Mechanics, columnName=Fundamental Theory and Experimental Research, runingTitle=null, highlight=null, articleAbstract=
In the constructural backfill mining, the composite bearing structure of 'backfill body-immediate roof' structure will be subjected to different loading rates depending on the mining speed and other conditions. According to the loading rate of 0.15−2.40 mm/min, the uniaxial compression test of five groups of rock-backfill composite were carried out, and digital image correlation technology and acoustic emission monitoring were carried out to analyze the evolutionary characteristics of its energy loss. It can be seen from the experiment that the strength of siltstone is significantly greater than the strength of the rock-backfill composite and the backfill body, and the strength of the combination is closer to the strength of the filling body than the siltstone. It can be seen that 0.60 mm/min is the critical load for this group of experiments. When the loading rate of the rock-backfill composite is 0.15−0.60 mm/min, the rock-backfill composite ultimately realizes the synergistic deformation of the siltstone and the backfill body in the rock-backfill composite and destruction of the rock-backfill composite in the process of loading, and when the loading rates are 1.20−2.40 mm/min, rock-backfill composite failed to achieve the collaborative deformation damage of the siltstone and the backfill body parts. When the loading rate is lower than 0.60 mm / min, due to the strength difference between the siltstone and the filling body and the non-uniform deformation of the contact interface between the two, a large crack penetrates the whole specimen. It can be seen that the final failure mode of each group of specimens is a tensile and shear mixed failure mode. By analyzing the dissipation energy changes of the rock-backfill composite and the backfill body, it can be seen that when the loading rate is greater than the critical loading rate, the pre-peak dissipation ratio of the rock-backfill composite is greater than that of the backfill body, and the composite can be destroyed in a coordinated manner. By calculating the energy storage coefficient and energy storage limit of the rock-backfill composite under different loading rates, it is found that when the loading rate is less than 0.60 mm/min, the higher the loading rate, the higher the energy storage limit of the combination specimen, and the speed of absorbing elastic energy is also rising synchronously. Finally, the backfill body part is destroyed first, and the energy released by the instantaneous damage is transmitted to the siltstone part of the rock-backfill composite, so that the elastic energy absorbed by the siltstone part can reach the energy storage limit. The crack in the backfill body part extends into the sandstone to achieve synergistic damage. The results of this study are intended to provide suggestions for ensuring the stability of the composite bearing structure of ' backfill body-immediate roof 'structure under different mining and filling rates.
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在结构充填开采中,“充填体-直接顶”复合承载结构会因采充速度等条件的不同,承受不同加载速率的载荷。按0.15~2.40 mm/min的加载速率分别对5组“粉砂岩-充填体”岩充组合体进行单轴压缩试验,进行数字图像相关技术与声发射监测,并分析其能量损耗演变特征。由试验可知,粉砂岩的强度显著大于组合体与充填体的强度,组合体的强度相较于粉砂岩更接近充填体的强度。加载速率为0.60 mm/min时,试件强度达到最高,为该组试验的临界加载速率。在组合体加载速率为0.15~0.60 mm/min时实现了试件的协同变形破坏,而加载速率为1.20~2.40 mm/min时未能实现协同变形破坏,组合体试件最终破坏模式为拉剪混合破坏模式。当加载速率低于0.60 mm/min时,岩充组合体试样中由于粉砂岩与充填体的强度差异以及两者接触界面非均匀变形共同作用下,出现贯穿试件整体大裂纹。当加载速率小于0.60 mm/min时,组合体的峰前耗散比大于充填单体。通过计算岩充组合体在不同加载速率下的储能系数与储能极限发现,当加载速率小于0.60 mm/min时,加载速率越大,组合体试件的储能极限越高,而吸收弹性能的速度也在同步上升,最后充填体部分率先发生破坏,其瞬间破坏释放的能量被传递到组合体的砂岩部分中,使粉砂岩部分所吸收的弹性能可达到储能极限,充填体部分中裂纹扩展贯通至砂岩内部,实现协同破坏;研究结果以期为保障煤矿结构充填开采的开采率与安全性提供指导性意见。
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, authorsList=孙思瑞, 杜献杰, 冯国瑞, 刘文昊, 王军)}, authors=[Author(id=1244316357177753965, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=2745220072@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1244316357311971702, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, authorId=1244316357177753965, language=EN, stringName=Si-rui SUN, firstName=Si-rui, middleName=null, lastName=SUN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, 3, address=
1.College of Mining Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
2.Shanxi Key Laboratory of Mine Rock Strata Control and Disaster Prevention, Taiyuan, Shanxi 030024, China
3.Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, Shanxi 030024, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1244316357467160960, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, authorId=1244316357177753965, language=CN, stringName=孙思瑞, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, 3, address=
1.太原理工大学 矿业工程学院,山西 太原 030024
2.矿山岩层控制及灾害防控山西省重点实验室,山西 太原 030024
3.山西浙大新材料与化工研究院,山西 太原 030024, bio={"content":"
孙思瑞,男,2000年生,硕士研究生,主要从事煤矿充填开采稳定性研究。E-mail:2745220072@qq.com
"}, bioImg=null, bioContent=
孙思瑞,男,2000年生,硕士研究生,主要从事煤矿充填开采稳定性研究。E-mail:2745220072@qq.com
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1.太原理工大学 矿业工程学院,山西 太原 030024)]), AuthorCompany(id=1244316356447945017, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, xref=2., ext=[AuthorCompanyExt(id=1244316356452139321, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, companyId=1244316356447945017, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3.山西浙大新材料与化工研究院,山西 太原 030024)])]), Author(id=1244316357576212869, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=duxianjie@tyut.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1244316357764956562, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, authorId=1244316357576212869, language=EN, stringName=Xian-jie DU, firstName=Xian-jie, middleName=null, lastName=DU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, 3, 4, 5, address=
1.College of Mining Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
2.Shanxi Key Laboratory of Mine Rock Strata Control and Disaster Prevention, Taiyuan, Shanxi 030024, China
3.Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, Shanxi 030024, China
4.State Key Laboratory of Deep Geotechnical Mechanics and Underground Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
5.Zhengzhou Coal industry (Group) Co. Ltd., Zhengzhou, Henan 450042, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1244316357894979993, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, authorId=1244316357576212869, language=CN, stringName=杜献杰, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, 3, 4, 5, address=
1.太原理工大学 矿业工程学院,山西 太原 030024
2.矿山岩层控制及灾害防控山西省重点实验室,山西 太原 030024
3.山西浙大新材料与化工研究院,山西 太原 030024
4.中国矿业大学 深部岩土力学与地下工程国家重点实验室,江苏 徐州 221116
5.郑州煤炭工业(集团)有限责任公司,河南 郑州 450042, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1244316356124983596, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, xref=1., ext=[AuthorCompanyExt(id=1244316356133372206, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, companyId=1244316356124983596, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3.山西浙大新材料与化工研究院,山西 太原 030024)]), AuthorCompany(id=1244316356728963399, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, xref=4., ext=[AuthorCompanyExt(id=1244316356745740616, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, companyId=1244316356728963399, 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 深部岩土力学与地下工程国家重点实验室,江苏 徐州 221116)]), AuthorCompany(id=1244316356863181138, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, xref=5., ext=[AuthorCompanyExt(id=1244316356871569748, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, companyId=1244316356863181138, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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5.郑州煤炭工业(集团)有限责任公司,河南 郑州 450042)])]), Author(id=1244316357987254691, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, 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=1244316358146638255, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, authorId=1244316357987254691, language=EN, stringName=Guo-rui FENG, firstName=Guo-rui, middleName=null, lastName=FENG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, 3, 6, address=
1.College of Mining Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
2.Shanxi Key Laboratory of Mine Rock Strata Control and Disaster Prevention, Taiyuan, Shanxi 030024, China
3.Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, Shanxi 030024, China
6.Shanxi Energy College, Jinzhong, Shanxi 030604, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1244316358347964856, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, authorId=1244316357987254691, language=CN, stringName=冯国瑞, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, 3, 6, address=
1.太原理工大学 矿业工程学院,山西 太原 030024
2.矿山岩层控制及灾害防控山西省重点实验室,山西 太原 030024
3.山西浙大新材料与化工研究院,山西 太原 030024
6.山西能源学院,山西 晋中 030604, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1244316356124983596, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, xref=1., ext=[AuthorCompanyExt(id=1244316356133372206, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, companyId=1244316356124983596, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2.Shanxi Key Laboratory of Mine Rock Strata Control and Disaster Prevention, Taiyuan, Shanxi 030024, China
3.Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, Shanxi 030024, China
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2.矿山岩层控制及灾害防控山西省重点实验室,山西 太原 030024
3.山西浙大新材料与化工研究院,山西 太原 030024
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2.矿山岩层控制及灾害防控山西省重点实验室,山西 太原 030024
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Preparation process of rock-backfill composite, figureFileSmall=3x5OFd6+Ft2YqQcyTt+ppQ==, figureFileBig=RF4HVuFDi+uF428BUvUKXA==, tableContent=null), ArticleFig(id=1244316361883763247, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=CN, label=图1, caption=
岩充组合体制备过程, figureFileSmall=3x5OFd6+Ft2YqQcyTt+ppQ==, figureFileBig=RF4HVuFDi+uF428BUvUKXA==, tableContent=null), ArticleFig(id=1244316362110255680, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=EN, label=Fig.2, caption=
Uniaxial experiment of rock-backfill composite, figureFileSmall=QkjVIFY6jrrlVVvwFrwKDg==, figureFileBig=hcfUCDIJY1rKVBLmpQhi0g==, tableContent=null), ArticleFig(id=1244316362215113289, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=CN, label=图2, caption=
岩充组合体单轴压缩试验, figureFileSmall=QkjVIFY6jrrlVVvwFrwKDg==, figureFileBig=hcfUCDIJY1rKVBLmpQhi0g==, tableContent=null), ArticleFig(id=1244316362336748122, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=EN, label=Fig.3, caption=
Average strength variation of rock-backfill composite and backfill at different loading rates, figureFileSmall=ofttHYJs6Ri7jHszIgNRQg==, figureFileBig=uLnD8Fgd4ILbIY0Rp2kDEQ==, tableContent=null), ArticleFig(id=1244316362449994340, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=CN, label=图3, caption=
岩充组合体与充填单体平均强度在不同加载速率变化规律, figureFileSmall=ofttHYJs6Ri7jHszIgNRQg==, figureFileBig=uLnD8Fgd4ILbIY0Rp2kDEQ==, tableContent=null), ArticleFig(id=1244316362563240554, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=EN, label=Fig.4, caption=
Stress-strain curves and strain cloud diagrams of rock-backfill composite under different loading rates, figureFileSmall=3xFabXjumApXZAvPGvKt3A==, figureFileBig=8V02ODiz5jDowtsic6igTA==, tableContent=null), ArticleFig(id=1244316362705846904, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=CN, label=图4, caption=
岩充组合体在不同加载速率下的应力-应变曲线与DIC应变云图, figureFileSmall=3xFabXjumApXZAvPGvKt3A==, figureFileBig=8V02ODiz5jDowtsic6igTA==, tableContent=null), ArticleFig(id=1244316362819093123, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=EN, label=Fig.5, caption=
Acoustic emission location map and RA-AF map of rock-backfill composite under different loading rates, figureFileSmall=j0neujMweV6xZ/+UuDxqRg==, figureFileBig=DOOW3AIQdKodZ2cTrJyOgg==, tableContent=null), ArticleFig(id=1244316362957505169, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=CN, label=图5, caption=
不同加载速率下岩充组合体声发射定位图与RA-AF图, figureFileSmall=j0neujMweV6xZ/+UuDxqRg==, figureFileBig=DOOW3AIQdKodZ2cTrJyOgg==, tableContent=null), ArticleFig(id=1244316363129471654, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=EN, label=Fig.6, caption=
Distribution of failure with different loading rates, figureFileSmall=KTfrPz6RbMgr/RMGHazLHQ==, figureFileBig=1G0hPN8kl9oS+yTnQlyndQ==, tableContent=null), ArticleFig(id=1244316363242717870, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=CN, label=图6, caption=
不同加载速率下的破坏分布, figureFileSmall=KTfrPz6RbMgr/RMGHazLHQ==, figureFileBig=1G0hPN8kl9oS+yTnQlyndQ==, tableContent=null), ArticleFig(id=1244316364819776184, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=EN, label=Fig.7, caption=
Pre-peak dissipation ratios of rock-backfill composite and backfill at different loading rates, figureFileSmall=ZzGaNXPrYX6FoRNsEaYl8A==, figureFileBig=4aJtkAA8MfhEHLZELgiLAA==, tableContent=null), ArticleFig(id=1244316364987548360, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=CN, label=图7, caption=
岩充组合体与充填体在不同加载速率下的峰前耗散比, figureFileSmall=ZzGaNXPrYX6FoRNsEaYl8A==, figureFileBig=4aJtkAA8MfhEHLZELgiLAA==, tableContent=null), ArticleFig(id=1244316365193069268, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=EN, label=Fig.8, caption=
Evolution curves of the elastic energy density of each group of rock-backfill composite under different loading rates, figureFileSmall=D6N/ArvxHOCWGTRUVVvs/w==, figureFileBig=ZNITwNZacb6mF6ou/VempA==, tableContent=null), ArticleFig(id=1244316365339869918, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=CN, label=图8, caption=
不同加载速率下各组试样弹性能密度演化曲线, figureFileSmall=D6N/ArvxHOCWGTRUVVvs/w==, figureFileBig=ZNITwNZacb6mF6ou/VempA==, tableContent=null), ArticleFig(id=1244316365448921831, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=EN, label=Fig.9, caption=
Evolution curves of the average elastic energy density of each group of rock-backfill composite samples under different loading rates, figureFileSmall=xsrbX5bI8IlAUP7KQQwEgQ==, figureFileBig=Ovy2tdSEL2dn+l19KnfKTQ==, tableContent=null), ArticleFig(id=1244316365587333871, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=CN, label=图9, caption=
不同加载速率下各组组合体试样弹性能密度平均值演化曲线, figureFileSmall=xsrbX5bI8IlAUP7KQQwEgQ==, figureFileBig=Ovy2tdSEL2dn+l19KnfKTQ==, tableContent=null), ArticleFig(id=1244316365725745911, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=EN, label=Fig.10, caption=
Linear energy storage law of rock-backfill composite, figureFileSmall=Ii8PPyuTyXESvCbZtqWixQ==, figureFileBig=8JQ0bsurftANAA5vyLi/UA==, tableContent=null), ArticleFig(id=1244316365855769348, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=CN, label=图10, caption=
组合体试件线性储能规律, figureFileSmall=Ii8PPyuTyXESvCbZtqWixQ==, figureFileBig=8JQ0bsurftANAA5vyLi/UA==, tableContent=null), ArticleFig(id=1244316365956432656, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=EN, label=Table 1, caption=
Mix proportion of coal gangue cement backfill
, figureFileSmall=null, figureFileBig=null, tableContent=
| 组分 | 密度/(kg·m−3) | 组分 | 密度/(kg·m−3) |
|---|
| 水 | 380 | 粗矸石 | 332.5 |
| 粉煤灰 | 665 | 中矸石 | 332.5 |
| 水泥 | 285 | 细矸石 | 285.0 |
), ArticleFig(id=1244316366040318743, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=CN, label=表1, caption=
矸石胶结充填体的配比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 组分 | 密度/(kg·m−3) | 组分 | 密度/(kg·m−3) |
|---|
| 水 | 380 | 粗矸石 | 332.5 |
| 粉煤灰 | 665 | 中矸石 | 332.5 |
| 水泥 | 285 | 细矸石 | 285.0 |
), ArticleFig(id=1244316366178730782, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=EN, label=Table 2, caption=
The selection of loading rate
, figureFileSmall=null, figureFileBig=null, tableContent=
| 试样编号 | 加载速率/(mm·min−1) | 预计加载时间/s |
|---|
| 1 | 0.15 | 1 600 |
| 2 | 0.30 | 800 |
| 3 | 0.60 | 400 |
| 4 | 1.20 | 200 |
| 5 | 2.40 | 100 |
), ArticleFig(id=1244316366304559912, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=CN, label=表2, caption=
试验加载速率选择
, figureFileSmall=null, figureFileBig=null, tableContent=
| 试样编号 | 加载速率/(mm·min−1) | 预计加载时间/s |
|---|
| 1 | 0.15 | 1 600 |
| 2 | 0.30 | 800 |
| 3 | 0.60 | 400 |
| 4 | 1.20 | 200 |
| 5 | 2.40 | 100 |
), ArticleFig(id=1244316366434583351, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=EN, label=Table 3, caption=
Average strength and average elastic modulus of rock-backfill composite, backfill and siltstone
, figureFileSmall=null, figureFileBig=null, tableContent=
| 加载速率/(mm·min−1) | 平均强度/MPa | 平均弹性模量/GPa |
|---|
| 岩充组合体 | 充填单体 | 粉砂岩 | 岩充组合体 | 充填单体 | 粉砂岩 |
|---|
| 0.15 | 10.71 | 9.2 | 31.50 | 13.29 | 8.02 | 67.28 |
| 0.30 | 10.85 | 12.23 | 48.36 | 14.48 | 15.87 | 88.02 |
| 0.60 | 13.01 | 13.35 | 49.40 | 17.05 | 21.30 | 116.47 |
| 1.20 | 11.62 | 12.60 | 41.55 | 13.90 | 14.80 | 81.10 |
| 2.40 | 10.04 | 11.13 | 29.09 | 12.21 | 14.76 | 66.56 |
), ArticleFig(id=1244316366593966919, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=CN, label=表3, caption=
岩充组合体、充填单体与粉砂岩的平均强度与平均弹性模量
, figureFileSmall=null, figureFileBig=null, tableContent=
| 加载速率/(mm·min−1) | 平均强度/MPa | 平均弹性模量/GPa |
|---|
| 岩充组合体 | 充填单体 | 粉砂岩 | 岩充组合体 | 充填单体 | 粉砂岩 |
|---|
| 0.15 | 10.71 | 9.2 | 31.50 | 13.29 | 8.02 | 67.28 |
| 0.30 | 10.85 | 12.23 | 48.36 | 14.48 | 15.87 | 88.02 |
| 0.60 | 13.01 | 13.35 | 49.40 | 17.05 | 21.30 | 116.47 |
| 1.20 | 11.62 | 12.60 | 41.55 | 13.90 | 14.80 | 81.10 |
| 2.40 | 10.04 | 11.13 | 29.09 | 12.21 | 14.76 | 66.56 |
), ArticleFig(id=1244316366736573265, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=EN, label=Table 4, caption=
Dissipation energy density of rock-fill composite under uniaxial compression at different loading rates
, figureFileSmall=null, figureFileBig=null, tableContent=
| 加载速率/(mm·min−1) | 峰前耗散能/(kJ·m−3) | 峰后耗散能/(kJ·m−3) | 峰前耗散比/% |
|---|
| 0.15 | 2.75 | 5.73 | 32.42 |
| 0.30 | 2.12 | 6.01 | 26.05 |
| 0.60 | 2.63 | 8.16 | 24.40 |
| 1.20 | 0.97 | 7.54 | 11.35 |
| 2.40 | 0.82 | 7.48 | 9.89 |
), ArticleFig(id=1244316366845625179, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=CN, label=表4, caption=
不同加载速率下岩充组合体的单轴压缩耗散能密度
, figureFileSmall=null, figureFileBig=null, tableContent=
| 加载速率/(mm·min−1) | 峰前耗散能/(kJ·m−3) | 峰后耗散能/(kJ·m−3) | 峰前耗散比/% |
|---|
| 0.15 | 2.75 | 5.73 | 32.42 |
| 0.30 | 2.12 | 6.01 | 26.05 |
| 0.60 | 2.63 | 8.16 | 24.40 |
| 1.20 | 0.97 | 7.54 | 11.35 |
| 2.40 | 0.82 | 7.48 | 9.89 |
), ArticleFig(id=1244316366984037224, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=EN, label=Table 5, caption=
Dissipation energy density of single backfill specimen under uniaxial compression at different loading rates
, figureFileSmall=null, figureFileBig=null, tableContent=
| 加载速率/(mm·min−1) | 峰前耗散能/(kJ·m−3) | 峰后耗散能/(kJ·m−3) | 峰前耗散比/% |
|---|
| 0.15 | 1.05 | 2.33 | 31.10 |
| 0.30 | 1.44 | 4.70 | 23.43 |
| 0.60 | 1.13 | 4.39 | 20.47 |
| 1.20 | 1.01 | 4.63 | 17.88 |
| 2.40 | 0.92 | 5.26 | 14.89 |
), ArticleFig(id=1244316367076311922, tenantId=1146029695717560320, journalId=1244215477623373855, articleId=1244316349648978045, language=CN, label=表5, caption=
不同加载速率下充填单体的单轴压缩耗散能密度
, figureFileSmall=null, figureFileBig=null, tableContent=
| 加载速率/(mm·min−1) | 峰前耗散能/(kJ·m−3) | 峰后耗散能/(kJ·m−3) | 峰前耗散比/% |
|---|
| 0.15 | 1.05 | 2.33 | 31.10 |
| 0.30 | 1.44 | 4.70 | 23.43 |
| 0.60 | 1.13 | 4.39 | 20.47 |
| 1.20 | 1.01 | 4.63 | 17.88 |
| 2.40 | 0.92 | 5.26 | 14.89 |
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