Article(id=1322907450667565221, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322907425740825534, 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=1730044800000, receivedDateStr=2024-10-28, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793335314670, onlineDateStr=2026-10-30, pubDate=1750780800000, pubDateStr=2025-06-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793335314670, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793335314670, creator=13701087609, updateTime=1793335314670, updator=13701087609, issue=Issue{id=1322907425740825534, tenantId=1146029695717560320, journalId=1225396423026438145, year='2025', volume='45', issue='6', pageStart='1', pageEnd='300', issueExtLink='null', onlineDate='null', pubDate='1750780800000', pubDateStr='2025-06-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793335308726, creator='13701087609', updateTime=1793335308726, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=12, endPage=21, ext={EN=ArticleExt(id=1322907452085239976, articleId=1322907450667565221, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Research on Roadway Support Technology of Deep Crushed Surrounding Rock Based on the Range of Plastic Zone, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In order to solve the problem of difficult roadway support in deep crushed surrounding rocks, the range of plastic zone was studied. Taking the roadway in the crushed section of a mine as the engineering background, the current situation of roadway damage was investigated, and from the physical properties of the roadway surrounding rock itself, the influences of cohesion and internal friction angle on plastic zone were analyzed by theoretical analysis and numerical simulation system. The results show that the reason for the failure of the roadway under the original support is the poor nature of the surrounding rocks and the neglect of the plastic zone by the support parameters. The cohesion and internal friction angle of surrounding rocks have a significant influences on the range of plastic zone. When the cohesion and internal friction angle are large, the range of plastic zone is small and the surrounding rocks of roadway tend to be stable. When the internal friction angle is 35° and the cohesion is 3 MPa, the change curve of the plastic zone radius turns, which indicates that the combined parameters are the key threshold of the bearing capacity of the surrounding rocks. According to the theoretical analysis and numerical simulation results, the combined support scheme of "anchor (rod), net, spray + full-section anchor cable" was proposed. The field displacement monitoring shows that the maximum deformation of the two sides is about 40 mm, and the maximum deformation of the surrounding rocks of the roof and floor is about 61 mm, which effectively guarantees the stability of the surrounding rocks. The research results provide a theoretical basis for the support technology of deep crushed surrounding rocks in roadway.
, authors=Hao ZHU
1, 2, Ke JIANG
1, 2, Yongchao GONG
1, 2, Like HU
3, Weixing LIN
1, 2, Junsheng HU
4, Jianpo LIU
5, Xiaochen XIONG
4, authorsList=Hao ZHU, Ke JIANG, Yongchao GONG, Like HU, Weixing LIN, Junsheng HU, Jianpo LIU, Xiaochen XIONG, authorCompany=null, correspAuthors=Ke JIANG, 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=1322907475325878509, articleId=1322907450667565221, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=基于塑性区范围的深部破碎围岩巷道支护技术研究, columnId=1226462294582936453, journalTitle=矿业研究与开发, columnName=深部、深海矿产资源勘探与开发, runingTitle=null, highlight=null, articleAbstract=
为解决深部破碎围岩巷道支护困难的问题,对围岩塑性区范围进行了研究。以某矿山破碎段巷道为工程背景,对巷道破坏现状进行调研,并从巷道围岩自身物理性质出发,通过理论与数值模拟系统分析了黏聚力与内摩擦角对塑性区的影响。结果表明:巷道在原支护下产生破坏的原因为围岩性质差与支护参数忽视塑性区范围;围岩的黏聚力和内摩擦角对塑性区范围具有显著影响,当黏聚力和内摩擦角较大时,塑性区范围较小,巷道围岩趋于稳定;当内摩擦角为35°、黏聚力为3 MPa时,塑性区半径的变化曲线出现转折,表明该组合参数为围岩承载能力的关键阈值;根据理论分析和数值模拟结果,提出了“锚(杆)、网、喷+全断面锚索”的联合支护方案,现场位移监测显示,两帮位移最大变形量为40 mm左右,顶底板围岩最大变形量为61 mm左右,有效保障了巷道围岩的稳定性。研究结果为深部破碎围岩巷道支护技术提供了理论依据。
, authors=朱豪
1, 2, 江科
1, 2, 龚永超
1, 2, 胡力可
3, 林卫星
1, 2, 胡军生
4, 刘建坡
5, 熊晓晨
4, authorsList=朱豪, 江科, 龚永超, 胡力可, 林卫星, 胡军生, 刘建坡, 熊晓晨, authorCompany=null, correspAuthors=江科, authorNote=
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1.Changsha Institute of Mining Research Co., Ltd., Changsha, Hunan 410012, China
2.State Key Laboratory of Metal Mine Safety Technology, Changsha, Hunan 410012, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322907484943417604, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, authorId=1322907484121334016, language=CN, stringName=朱豪, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.长沙矿山研究院有限责任公司,湖南 长沙 410012
2.金属矿山安全技术国家重点实验室,湖南 长沙 410012, bio={"content":"
朱豪(1998—),男,湖南衡阳人,硕士,工程师,主要从事矿山绿色开采及安全相关的研究工作。E-mail:845543679@qq.com
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朱豪(1998—),男,湖南衡阳人,硕士,工程师,主要从事矿山绿色开采及安全相关的研究工作。E-mail:845543679@qq.com
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1.长沙矿山研究院有限责任公司,湖南 长沙 410012
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1.Changsha Institute of Mining Research Co., Ltd., Changsha, Hunan 410012, China
2.State Key Laboratory of Metal Mine Safety Technology, Changsha, Hunan 410012, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322907488705708305, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, authorId=1322907487862653197, language=CN, stringName=龚永超, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.长沙矿山研究院有限责任公司,湖南 长沙 410012
2.金属矿山安全技术国家重点实验室,湖南 长沙 410012, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322907477884403951, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, xref=1., ext=[AuthorCompanyExt(id=1322907478228336880, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, companyId=1322907477884403951, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3, address=
3.Minmetals Mining Holdings Co., Ltd., Hefei, Anhui 230091, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322907490446344470, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, authorId=1322907489162887443, language=CN, stringName=胡力可, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3.五矿矿业控股有限公司,安徽 合肥 230091, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322907479973167349, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, xref=3., ext=[AuthorCompanyExt(id=1322907480015110390, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, companyId=1322907479973167349, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1.Changsha Institute of Mining Research Co., Ltd., Changsha, Hunan 410012, China
2.State Key Laboratory of Metal Mine Safety Technology, Changsha, Hunan 410012, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322907493344608541, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, authorId=1322907490882552088, language=CN, stringName=林卫星, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.长沙矿山研究院有限责任公司,湖南 长沙 410012
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5.东北大学 深部金属矿山安全开采教育部重点实验室,辽宁 沈阳 110819)])], figs=[ArticleFig(id=1322907505973657916, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Fig.1, caption=
Original support scheme for roadway (Unit:mm), figureFileSmall=y9fKH2SR9YZFEEIoxI2Slg==, figureFileBig=7W/iKPR5ZS+nodqr8O0unA==, tableContent=null), ArticleFig(id=1322907506325979453, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=图1, caption=
巷道原支护方案(单位:mm), figureFileSmall=y9fKH2SR9YZFEEIoxI2Slg==, figureFileBig=7W/iKPR5ZS+nodqr8O0unA==, tableContent=null), ArticleFig(id=1322907506871238974, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Fig.2, caption=
Peephole view of drilled holes in the roadway surrounding rock, figureFileSmall=9DPpYXg182ScmFg203AWKw==, figureFileBig=y0ZMH/gRLy3evFRg/y5uTw==, tableContent=null), ArticleFig(id=1322907507210977599, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=图2, caption=
巷道围岩钻孔窥视结果, figureFileSmall=9DPpYXg182ScmFg203AWKw==, figureFileBig=y0ZMH/gRLy3evFRg/y5uTw==, tableContent=null), ArticleFig(id=1322907507282280768, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Fig.3, caption=
The damage condition of the roadway, figureFileSmall=/DqrjobzFt6+SZs8Ko/I5w==, figureFileBig=KkfN82b/BeQS1NPbbXzCKA==, tableContent=null), ArticleFig(id=1322907507592659265, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=图3, caption=
巷道破坏状况, figureFileSmall=/DqrjobzFt6+SZs8Ko/I5w==, figureFileBig=KkfN82b/BeQS1NPbbXzCKA==, tableContent=null), ArticleFig(id=1322907507680739650, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Fig.4, caption=
Calculated mechanical model of roadway surrounding rock, figureFileSmall=7OS7Sxctnjpdx7yMUIUosg==, figureFileBig=NMbiU/P/ruDYFDg8ZAfSxQ==, tableContent=null), ArticleFig(id=1322907508003701059, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=图4, caption=
巷道围岩计算力学模型, figureFileSmall=7OS7Sxctnjpdx7yMUIUosg==, figureFileBig=NMbiU/P/ruDYFDg8ZAfSxQ==, tableContent=null), ArticleFig(id=1322907508079198533, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Fig.5, caption=
Circumferential stress distribution in the roadway surrounding rock for λ=0−4、θ=0−2π、R=r, figureFileSmall=zc5UqZgWP6FegZBurdgzmw==, figureFileBig=NjlYiuyc1e4vX59ch9Dmdw==, tableContent=null), ArticleFig(id=1322907508435714374, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=图5, caption=
λ=0~4、θ=0~2π、R=r时巷道围岩环向应力分布, figureFileSmall=zc5UqZgWP6FegZBurdgzmw==, figureFileBig=NjlYiuyc1e4vX59ch9Dmdw==, tableContent=null), ArticleFig(id=1322907508515406151, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Fig.6, caption=
Mohr-coulomb criterion in σ−τ coordinates, figureFileSmall=gVpiFTy13jvsEQE89rJGpw==, figureFileBig=BA8fVbl4hY/nDHXFITjJ2A==, tableContent=null), ArticleFig(id=1322907510193127752, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=图6, caption=
σ−τ坐标下摩尔-库伦准则, figureFileSmall=gVpiFTy13jvsEQE89rJGpw==, figureFileBig=BA8fVbl4hY/nDHXFITjJ2A==, tableContent=null), ArticleFig(id=1322907510297985354, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Fig.7, caption=
Effect of cohesion and internal friction angle on the damage radius of the roadway when λ=1, figureFileSmall=T1Bt/KB9nmkggXL2K9gn/g==, figureFileBig=zAtyKit1VwmQfnFfeipJ4w==, tableContent=null), ArticleFig(id=1322907510386065740, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=图7, caption=
λ=1时黏聚力和内摩擦角对巷道塑性区半径的影响, figureFileSmall=T1Bt/KB9nmkggXL2K9gn/g==, figureFileBig=zAtyKit1VwmQfnFfeipJ4w==, tableContent=null), ArticleFig(id=1322907510474146125, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Fig.8, caption=
Numerical model for plastic zone range analysis, figureFileSmall=SeyEIcyKhlJN2jBt6vzAsg==, figureFileBig=ZDJ0hsReFyM9GIYzW3g/YQ==, tableContent=null), ArticleFig(id=1322907510549643598, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=图8, caption=
塑性区范围分析数值模型, figureFileSmall=SeyEIcyKhlJN2jBt6vzAsg==, figureFileBig=ZDJ0hsReFyM9GIYzW3g/YQ==, tableContent=null), ArticleFig(id=1322907510629335375, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Fig.9, caption=
Variation of plastic zone of surrounding rock under different cohesions, figureFileSmall=1Ig3US3SSAj5La22U4G1UQ==, figureFileBig=miN4xZ5NFSyPx3f0M8KLww==, tableContent=null), ArticleFig(id=1322907510939713873, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=图9, caption=
不同黏聚力下围岩塑性区变化云图, figureFileSmall=1Ig3US3SSAj5La22U4G1UQ==, figureFileBig=miN4xZ5NFSyPx3f0M8KLww==, tableContent=null), ArticleFig(id=1322907511036182866, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Fig.10, caption=
Variation of plastic zone of surrounding rock under different internal friction angles, figureFileSmall=VY+L+qHxeNv76TIEGr77Mg==, figureFileBig=DKTsT88P4I1YBT08KfLikA==, tableContent=null), ArticleFig(id=1322907511363338579, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=图10, caption=
不同内摩擦角下围岩塑性区变化云图, figureFileSmall=VY+L+qHxeNv76TIEGr77Mg==, figureFileBig=DKTsT88P4I1YBT08KfLikA==, tableContent=null), ArticleFig(id=1322907511459807572, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Fig.11, caption=
Comparison curves of theoretical calculation and numerical simulation results, figureFileSmall=UrrtNXIf8s3kpDU+8OCIbg==, figureFileBig=n602thN6qI7eEEvNgrf9bg==, tableContent=null), ArticleFig(id=1322907511778574677, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=图11, caption=
理论计算与数值模拟结果对比曲线, figureFileSmall=UrrtNXIf8s3kpDU+8OCIbg==, figureFileBig=n602thN6qI7eEEvNgrf9bg==, tableContent=null), ArticleFig(id=1322907511866655062, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Fig.12, caption=
Optimized support scheme of the roadway (Unit:mm), figureFileSmall=nzqxqO2MF+SZoc79m5vluw==, figureFileBig=wDe9HgJJ5IwOsNaLsqqUjw==, tableContent=null), ArticleFig(id=1322907511929569623, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=图12, caption=
巷道优化支护方案(单位:mm), figureFileSmall=nzqxqO2MF+SZoc79m5vluw==, figureFileBig=wDe9HgJJ5IwOsNaLsqqUjw==, tableContent=null), ArticleFig(id=1322907512198005080, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Fig.13, caption=
Numerical model of surrounding rock support, figureFileSmall=ecfMKE4utKzotA3wsk4hIw==, figureFileBig=au2a40mkYY+zTFJ6jvEEfQ==, tableContent=null), ArticleFig(id=1322907512273502553, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=图13, caption=
围岩支护数值模型, figureFileSmall=ecfMKE4utKzotA3wsk4hIw==, figureFileBig=au2a40mkYY+zTFJ6jvEEfQ==, tableContent=null), ArticleFig(id=1322907512613241178, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Fig.14, caption=
Numerical simulation results of optimized support scheme, figureFileSmall=qfVJPw8VfJ8G2gPjuMmKXg==, figureFileBig=/qpZwbK1RRCVagVEWnJf/w==, tableContent=null), ArticleFig(id=1322907512676155739, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=图14, caption=
优化支护方案数值模拟结果, figureFileSmall=qfVJPw8VfJ8G2gPjuMmKXg==, figureFileBig=/qpZwbK1RRCVagVEWnJf/w==, tableContent=null), ArticleFig(id=1322907512739070300, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Fig.15, caption=
Deformation curves of wellbore surrounding rock, figureFileSmall=YRbFukiDwAs+3H1maUDozA==, figureFileBig=VXVar8z/TmgMqqRUk2gZ1g==, tableContent=null), ArticleFig(id=1322907512801984861, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=图15, caption=
井筒围岩变形曲线, figureFileSmall=YRbFukiDwAs+3H1maUDozA==, figureFileBig=VXVar8z/TmgMqqRUk2gZ1g==, tableContent=null), ArticleFig(id=1322907512852316510, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Fig.16, caption=
Effect of roadway support in the goaf, figureFileSmall=T89bYMEaHplB9Fi49y5c6A==, figureFileBig=KJ7vFZmec9uDGYszTwM5/Q==, tableContent=null), ArticleFig(id=1322907514676838752, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=图16, caption=
采空区内巷道支护效果, figureFileSmall=T89bYMEaHplB9Fi49y5c6A==, figureFileBig=KJ7vFZmec9uDGYszTwM5/Q==, tableContent=null), ArticleFig(id=1322907514752336226, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Table 1, caption=
Physical parameters of numerical model of plastic zone
, figureFileSmall=null, figureFileBig=null, tableContent=
| 体积模量/GPa | 切变模量/GPa | 黏聚力/MPa | 内摩擦角/(°) | 容重/(kg/m3) |
|---|
| 2.561 | 2.356 | 2.16 | 36 | 2 150 |
), ArticleFig(id=1322907514827833699, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=表1, caption=
塑性区数值模型的物理参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 体积模量/GPa | 切变模量/GPa | 黏聚力/MPa | 内摩擦角/(°) | 容重/(kg/m3) |
|---|
| 2.561 | 2.356 | 2.16 | 36 | 2 150 |
), ArticleFig(id=1322907514907525476, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Table 2, caption=
Comparison of theoretical calculations and numerical simulation results
, figureFileSmall=null, figureFileBig=null, tableContent=
| 黏聚力/MPa | 内摩擦角/(°) | 理论塑性区半径/m | 模拟塑性区半径/m |
|---|
| 1.00 | 36.0 | 5.517 | 8.015 |
| 1.50 | 36.0 | 5.372 | 7.443 |
| 2.00 | 36.0 | 5.237 | 6.734 |
| 2.50 | 36.0 | 5.112 | 5.986 |
| 3.00 | 36.0 | 4.996 | 5.272 |
| 3.50 | 36.0 | 4.888 | 5.098 |
| 4.00 | 36.0 | 4.786 | 4.899 |
| 4.50 | 36.0 | 4.690 | 4.876 |
| 5.00 | 36.0 | 4.600 | 4.578 |
| 5.50 | 36.0 | 4.515 | 4.341 |
| 6.00 | 36.0 | 4.431 | 4.265 |
| 2.16 | 20.0 | 5.249 | 7.636 |
| 2.16 | 22.5 | 4.992 | 7.003 |
| 2.16 | 25.0 | 4.780 | 6.297 |
| 2.16 | 27.5 | 4.595 | 5.840 |
| 2.16 | 30.0 | 4.431 | 5.288 |
| 2.16 | 32.5 | 4.286 | 4.879 |
| 2.16 | 35.0 | 4.159 | 4.594 |
| 2.16 | 37.5 | 4.050 | 4.630 |
| 2.16 | 40.0 | 3.951 | 4.270 |
| 2.16 | 42.5 | 3.862 | 3.879 |
| 2.16 | 45.0 | 3.783 | 3.678 |
), ArticleFig(id=1322907515129823589, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=表2, caption=
理论计算与数值模拟结果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 黏聚力/MPa | 内摩擦角/(°) | 理论塑性区半径/m | 模拟塑性区半径/m |
|---|
| 1.00 | 36.0 | 5.517 | 8.015 |
| 1.50 | 36.0 | 5.372 | 7.443 |
| 2.00 | 36.0 | 5.237 | 6.734 |
| 2.50 | 36.0 | 5.112 | 5.986 |
| 3.00 | 36.0 | 4.996 | 5.272 |
| 3.50 | 36.0 | 4.888 | 5.098 |
| 4.00 | 36.0 | 4.786 | 4.899 |
| 4.50 | 36.0 | 4.690 | 4.876 |
| 5.00 | 36.0 | 4.600 | 4.578 |
| 5.50 | 36.0 | 4.515 | 4.341 |
| 6.00 | 36.0 | 4.431 | 4.265 |
| 2.16 | 20.0 | 5.249 | 7.636 |
| 2.16 | 22.5 | 4.992 | 7.003 |
| 2.16 | 25.0 | 4.780 | 6.297 |
| 2.16 | 27.5 | 4.595 | 5.840 |
| 2.16 | 30.0 | 4.431 | 5.288 |
| 2.16 | 32.5 | 4.286 | 4.879 |
| 2.16 | 35.0 | 4.159 | 4.594 |
| 2.16 | 37.5 | 4.050 | 4.630 |
| 2.16 | 40.0 | 3.951 | 4.270 |
| 2.16 | 42.5 | 3.862 | 3.879 |
| 2.16 | 45.0 | 3.783 | 3.678 |
), ArticleFig(id=1322907515209515366, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Table 3, caption=
Parameters of numerical model of surrounding rock support
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩层名称 | 体积模量/GPa | 切变模量/GPa | 黏聚力/MPa | 内摩擦角/(°) | 容重/(kg·m–3) |
|---|
| 灰岩 | 6.840 | 6.550 | 21.00 | 40 | 2 640 |
| 粉砂岩 | 2.050 | 1.810 | 1.80 | 30 | 2 300 |
| 泥质砂岩 | 2.561 | 2.356 | 2.16 | 36 | 2 150 |
| 高岭土层 | 0.150 | 0.125 | 0.80 | 25 | 1 400 |
| 砂岩 | 2.050 | 1.810 | 2.50 | 37 | 2 300 |
| 高岭土层 | 0.150 | 0.125 | 0.80 | 25 | 1 400 |
), ArticleFig(id=1322907515272429927, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=表3, caption=
围岩支护数值模型计算参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 岩层名称 | 体积模量/GPa | 切变模量/GPa | 黏聚力/MPa | 内摩擦角/(°) | 容重/(kg·m–3) |
|---|
| 灰岩 | 6.840 | 6.550 | 21.00 | 40 | 2 640 |
| 粉砂岩 | 2.050 | 1.810 | 1.80 | 30 | 2 300 |
| 泥质砂岩 | 2.561 | 2.356 | 2.16 | 36 | 2 150 |
| 高岭土层 | 0.150 | 0.125 | 0.80 | 25 | 1 400 |
| 砂岩 | 2.050 | 1.810 | 2.50 | 37 | 2 300 |
| 高岭土层 | 0.150 | 0.125 | 0.80 | 25 | 1 400 |
), ArticleFig(id=1322907515607974248, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=EN, label=Table 4, caption=
Anchor (cable) parameters in numerical simulation
, figureFileSmall=null, figureFileBig=null, tableContent=
| 锚杆(索)名称 | 弹性模量/GPa | 抗拉强度/MPa | 横截面面积/m2 | 水泥浆的黏结力/Pa | 水泥浆刚度/Pa | 水泥浆外圈周长/m |
|---|
| 自由段 | 0.21 | 17.744 | 0.000 38 | 1 | 1 | 0.087 |
| 锚固段 | 0.21 | 17.744 | 0.000 38 | 2×1010 | 2×109 | — |
| 托盘 | 0.21 | 17.744 | 0.000 38 | 2×1013 | 2×1012 | — |
), ArticleFig(id=1322907515977073001, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322907450667565221, language=CN, label=表4, caption=
数值模拟中锚杆(索)参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 锚杆(索)名称 | 弹性模量/GPa | 抗拉强度/MPa | 横截面面积/m2 | 水泥浆的黏结力/Pa | 水泥浆刚度/Pa | 水泥浆外圈周长/m |
|---|
| 自由段 | 0.21 | 17.744 | 0.000 38 | 1 | 1 | 0.087 |
| 锚固段 | 0.21 | 17.744 | 0.000 38 | 2×1010 | 2×109 | — |
| 托盘 | 0.21 | 17.744 | 0.000 38 | 2×1013 | 2×1012 | — |
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