Article(id=1261270372167631577, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1261262687258985194, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2405605, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1721836800000, receivedDateStr=2024-07-25, revisedDate=1744646400000, revisedDateStr=2025-04-15, acceptedDate=null, acceptedDateStr=null, onlineDate=1778639889995, onlineDateStr=2026-05-13, pubDate=1752768000000, pubDateStr=2025-07-18, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1778639889995, onlineIssueDateStr=2026-05-13, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1778639889995, creator=13701087609, updateTime=1778639889995, updator=13701087609, issue=Issue{id=1261262687258985194, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='20', pageStart='8317', pageEnd='8759', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1778638057769, creator=13701087609, updateTime=1778753106634, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1261745237240722095, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1261262687258985194, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1261745237240722096, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1261262687258985194, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=8682, endPage=8695, ext={EN=ArticleExt(id=1261270373073601248, articleId=1261270372167631577, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Initial Support Force Characteristics of Shallow Buried and Biased Section of Tunnel Portal in Completely Weathered Granite Strata, columnId=1156262728772735295, journalTitle=Science Technology and Engineering, columnName=Papers·Traffics and Transportations, runingTitle=null, highlight=null, articleAbstract=
To investigate the stress characteristics of the primary support in the shallow buried biased section of the tunnel in fully weathered granite strata. Based on the Xiangsishan Tunnel, laboratory tests were conducted to determine the mechanical parameters including cohesion and internal friction angle of fully weathered granite. The construction process was simulated by FLAC 3D numerical software for the shallow buried bias section of the tunnel entrance. To study the effects of varying ground slopes, tunnel depths, and soil-rock interface locations on the stress characteristics of the primary support structure. The results indicate that, under various impact factors, the axial force and bending moment of the primary support exhibit the distribution characteristics of “upper large and lower small”, while the safety factor displays the opposite trend. The internal stresses of the primary support are distributed asymmetrically as the ground slope increases. The positive bending moment shifts toward the deeper-buried side and gradually increases, while the negative bending moment and axial force increase at the arch waist on the shallow-buried side. When the ground slope reaches 40°, the safety factor of the primary support falls below the standard allowable value. However, the stability of the primary support can be enhanced by implementing multi-stage variable slopes. As the depth of the tunnel increases, the asymmetric distribution of internal stresses in the primary support decreases, while the overall magnitude of internal stresses continuously increases. When the soil-rock interface crosses the tunnel at various locations, the magnitude of the internal stresses in the primary support is significantly affected, whereas the distribution pattern remains relatively stable. The reliability of the stress characteristics of the primary support under various impact factors was verified through on-site monitoring of the stress variations in the steel arch and concrete at various locations of the tunnel.
, correspAuthors=Shu-qi MA, 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=Yan ZHAO, Shu-qi MA), CN=ArticleExt(id=1261270397908075489, articleId=1261270372167631577, tenantId=1146029695717560320, journalId=1146123166801305609, language=CN, title=全风化花岗岩地层隧道浅埋偏压段初支受力特性, columnId=1156262730664366426, journalTitle=科学技术与工程, columnName=论文·交通运输, runingTitle=null, highlight=null, articleAbstract=
为研究全风化花岗岩地层隧道浅埋偏压段初支结构受力特性,依托相思山隧道采用室内试验获取全风化花岗岩黏聚力、内摩擦角等参数,并通过FLAC3D数值软件对洞口浅埋偏压段施工过程模拟,研究不同地层因素对初支结构受力特征。结果表明:各地层因素下初支轴力和弯矩均呈“上大下小”分布特征,而初支安全系数则相反,横坡坡度的增大使初支内力呈非对称性分布,正弯矩向深埋侧偏移并逐渐增大,负弯矩和轴力在浅埋侧拱腰处不断增加,横坡坡度达到40°时初支安全系数小于允许值,但采用多段变坡面可提高初支结构安全性;随着隧道埋深的增大可减弱初支内力的非对称性分布,但内力不断增大;土石界面与隧道相交于不同位置时,初支内力大小受较大影响,而分布特征变化较小。通过现场监测隧道各位置钢拱架与混凝土应力变化以验证各地层因素作用下初支结构受力特性的合理性。
, correspAuthors=马述起, authorNote=null, correspAuthorsNote=
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, authorsList=赵岩, 马述起)}, authors=[Author(id=1261270399774540798, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=626329374@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1261270400638566404, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, authorId=1261270399774540798, language=EN, stringName=Yan ZHAO, firstName=Yan, middleName=null, lastName=ZHAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 China Railway 12th Bureau Group Co., Ltd., Taiyuan 030027, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1261270402362425353, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, authorId=1261270399774540798, language=CN, stringName=赵岩, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 中铁十二局集团有限公司, 太原 030027, bio={"content":"
赵岩(1990—),男,汉族,黑龙江嫩江人,工程师。研究方向:隧道工程施工。E-mail:626329374@qq.com。
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赵岩(1990—),男,汉族,黑龙江嫩江人,工程师。研究方向:隧道工程施工。E-mail:626329374@qq.com。
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2 School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1261270405151637527, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, authorId=1261270402609889294, language=CN, stringName=马述起, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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43(1): 131-140., articleTitle=Adaptability analysis of layeredprimary supports for tunnels with large extrusion deformations, refAbstract=null)], funds=[Fund(id=1261270443072340258, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, awardId=52378417, language=CN, fundingSource=国家自然科学基金(52378417), fundOrder=null, country=null), Fund(id=1261270443315609893, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, awardId=2024NSFSC0174, language=CN, fundingSource=四川省自然科学基金(2024NSFSC0174), fundOrder=null, country=null), Fund(id=1261270443768594728, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, awardId=2682021CX003, language=CN, fundingSource=中央高校基本科研业务费专项(2682021CX003), fundOrder=null, country=null), Fund(id=1261270444154470698, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, awardId=2682021ZTPY049, language=CN, fundingSource=中央高校基本科研业务费专项(2682021ZTPY049), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1261270398860182509, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, xref=1, ext=[AuthorCompanyExt(id=1261270398872765422, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, companyId=1261270398860182509, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2 School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China), AuthorCompanyExt(id=1261270399355110390, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, companyId=1261270399246058482, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2 西南交通大学土木工程学院, 成都 610031)])], figs=[ArticleFig(id=1261270412734939202, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.1, caption=
Longitudinal profile of Xiangsishan tunnel, figureFileSmall=tUvn/lEAm2QPKU+G9cigPg==, figureFileBig=HESEZyQtEecuxoLWGBiXww==, tableContent=null), ArticleFig(id=1261270412944654406, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图1, caption=
相思山隧道纵断面图, figureFileSmall=tUvn/lEAm2QPKU+G9cigPg==, figureFileBig=HESEZyQtEecuxoLWGBiXww==, tableContent=null), ArticleFig(id=1261270413506691151, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.2, caption=
Xiangsi Mountain tunnel entrance, figureFileSmall=rEH7qIui/+RgiQxYQHkwhw==, figureFileBig=GFWoLp5dSeq+PBzGcBjvkw==, tableContent=null), ArticleFig(id=1261270413993230421, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图2, caption=
相思山隧道进口端, figureFileSmall=rEH7qIui/+RgiQxYQHkwhw==, figureFileBig=GFWoLp5dSeq+PBzGcBjvkw==, tableContent=null), ArticleFig(id=1261270417730355287, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.3, caption=
Consolidation test of fully weathered granite, figureFileSmall=IomAhHnmIkiGB5pYxiGJtQ==, figureFileBig=3HG0LgtnvgYJ8vP8EY+LZg==, tableContent=null), ArticleFig(id=1261270417889738844, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图3, caption=
全风化花岗岩固结试验, figureFileSmall=IomAhHnmIkiGB5pYxiGJtQ==, figureFileBig=3HG0LgtnvgYJ8vP8EY+LZg==, tableContent=null), ArticleFig(id=1261270418061705311, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.4, caption=
Relation curve between consolidation strain and time of fully weathered granite, figureFileSmall=bZtDybj6xLO0PnQUBYV5ng==, figureFileBig=MbbAnAY3/8cJyW/AA1q7Lg==, tableContent=null), ArticleFig(id=1261270418510495843, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图4, caption=
全风化花岗岩固结应变与时间关系曲线, figureFileSmall=bZtDybj6xLO0PnQUBYV5ng==, figureFileBig=MbbAnAY3/8cJyW/AA1q7Lg==, tableContent=null), ArticleFig(id=1261270420301463654, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.5, caption=
Consolidated undrained triaxial test, figureFileSmall=dHCPAk+HWDZzXUBAegXlmA==, figureFileBig=d7anTnKs32OsEVj46EO/RQ==, tableContent=null), ArticleFig(id=1261270420725088365, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图5, caption=
固结不排水三轴试验, figureFileSmall=dHCPAk+HWDZzXUBAegXlmA==, figureFileBig=d7anTnKs32OsEVj46EO/RQ==, tableContent=null), ArticleFig(id=1261270420884471921, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.6, caption=
Moire intensity envelope of fully weathered granite, figureFileSmall=wbW4BKP0pwsR1hYvnvzSDg==, figureFileBig=fs4D7JnE8f/yWLZV/E6Bbg==, tableContent=null), ArticleFig(id=1261270421069021302, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图6, caption=
全风化花岗岩莫尔强度包络线, figureFileSmall=wbW4BKP0pwsR1hYvnvzSDg==, figureFileBig=fs4D7JnE8f/yWLZV/E6Bbg==, tableContent=null), ArticleFig(id=1261270423065510008, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.7, caption=
3D numerical model, figureFileSmall=0rK921C5wWdeKMIGsQweig==, figureFileBig=NRWvksvyMcVDIBgzLdBPyw==, tableContent=null), ArticleFig(id=1261270424881643645, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图7, caption=
三维数值模型, figureFileSmall=0rK921C5wWdeKMIGsQweig==, figureFileBig=NRWvksvyMcVDIBgzLdBPyw==, tableContent=null), ArticleFig(id=1261270425376571520, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.8, caption=
Tunnel construction process, figureFileSmall=1CY4sWouvJzaWmbU7jHU+w==, figureFileBig=DGtK+0+rlda5TUY4owG9jg==, tableContent=null), ArticleFig(id=1261270425598869639, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图8, caption=
隧道施工流程, figureFileSmall=1CY4sWouvJzaWmbU7jHU+w==, figureFileBig=DGtK+0+rlda5TUY4owG9jg==, tableContent=null), ArticleFig(id=1261270425816973451, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.9, caption=
Tunnelcross-sectional diagram, figureFileSmall=d64uf2l8EzXhsiyykhdvoA==, figureFileBig=vjTDqKyzSoP1EvTS+uecTA==, tableContent=null), ArticleFig(id=1261270426240598159, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图9, caption=
隧道断面图 L为锚杆长度
, figureFileSmall=d64uf2l8EzXhsiyykhdvoA==, figureFileBig=vjTDqKyzSoP1EvTS+uecTA==, tableContent=null), ArticleFig(id=1261270426412564625, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.10, caption=
Monitoring point arrangement, figureFileSmall=f0QF6OzfmvxFDLskO7SK9w==, figureFileBig=9PnEn42FU0LwTQ5BiLgdJw==, tableContent=null), ArticleFig(id=1261270426710360214, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图10, caption=
监测点布置, figureFileSmall=f0QF6OzfmvxFDLskO7SK9w==, figureFileBig=9PnEn42FU0LwTQ5BiLgdJw==, tableContent=null), ArticleFig(id=1261270426974601371, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.11, caption=
Calculation conditions for different cross slope gradients, figureFileSmall=z9hrImiXTR1MczgYcKB8Uw==, figureFileBig=e0imy3jv8T5LXJy29S2r7Q==, tableContent=null), ArticleFig(id=1261270427310145694, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图11, caption=
不同横坡坡度的计算工况, figureFileSmall=z9hrImiXTR1MczgYcKB8Uw==, figureFileBig=e0imy3jv8T5LXJy29S2r7Q==, tableContent=null), ArticleFig(id=1261270429197582496, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.12, caption=
Initial support bending moment of different cross slope gradients, figureFileSmall=9Vwfgiuzt2N4N09PnmGQHw==, figureFileBig=8WZr2UgMLkJRt6MhFKTOeA==, tableContent=null), ArticleFig(id=1261270429398909093, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图12, caption=
不同横坡坡度的初支弯矩, figureFileSmall=9Vwfgiuzt2N4N09PnmGQHw==, figureFileBig=8WZr2UgMLkJRt6MhFKTOeA==, tableContent=null), ArticleFig(id=1261270429583458472, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.13, caption=
Initial support axial force of different cross slope gradients, figureFileSmall=4s3NESzMu5pNhEsDOAKI3g==, figureFileBig=U0uw30pPPmVy56aiwYlcEw==, tableContent=null), ArticleFig(id=1261270429738647725, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图13, caption=
不同横坡坡度的初支轴力, figureFileSmall=4s3NESzMu5pNhEsDOAKI3g==, figureFileBig=U0uw30pPPmVy56aiwYlcEw==, tableContent=null), ArticleFig(id=1261270429898031281, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.14, caption=
Initial support safety factor of different cross slope gradients, figureFileSmall=0zpsuBQlaABbB6quwaF2LA==, figureFileBig=qOw6hRNn7PE2cb9Vfu87ig==, tableContent=null), ArticleFig(id=1261270430086774964, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图14, caption=
不同横坡坡度的初支安全系数, figureFileSmall=0zpsuBQlaABbB6quwaF2LA==, figureFileBig=qOw6hRNn7PE2cb9Vfu87ig==, tableContent=null), ArticleFig(id=1261270430317461689, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.15, caption=
Variation curves of various parameters of initial support under different cross slope gradients, figureFileSmall=Ingl17t7gukr3UDc1Yuagg==, figureFileBig=xKfLw3Rr/g3bLln73B/TLQ==, tableContent=null), ArticleFig(id=1261270430611062974, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图15, caption=
不同横坡坡度下初支各参数变化曲线, figureFileSmall=Ingl17t7gukr3UDc1Yuagg==, figureFileBig=xKfLw3Rr/g3bLln73B/TLQ==, tableContent=null), ArticleFig(id=1261270430850138305, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.16, caption=
Calculation conditions for different tunnel burial depths, figureFileSmall=sLjK0WBD0OCn8Xxp9NH+Hg==, figureFileBig=3LeTQS0VzW5o1LKui2Es/Q==, tableContent=null), ArticleFig(id=1261270430946607299, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图16, caption=
不同隧道埋深的计算工况, figureFileSmall=sLjK0WBD0OCn8Xxp9NH+Hg==, figureFileBig=3LeTQS0VzW5o1LKui2Es/Q==, tableContent=null), ArticleFig(id=1261270431189876935, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.17, caption=
Initial support bending moment for different tunnel burial depths, figureFileSmall=rluYjRl4HVJeRuwV0nZ2Zw==, figureFileBig=YXKaC84V/YS5N1AgkxkwmA==, tableContent=null), ArticleFig(id=1261270431479283916, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图17, caption=
不同隧道埋深的初支弯矩, figureFileSmall=rluYjRl4HVJeRuwV0nZ2Zw==, figureFileBig=YXKaC84V/YS5N1AgkxkwmA==, tableContent=null), ArticleFig(id=1261270432058097873, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.18, caption=
Diagram of initial support axial force for different tunnel burial depths, figureFileSmall=Cqt7knPHnf0wxJ5QGtLzmw==, figureFileBig=t+m4U0325Op549M+9iKBwQ==, tableContent=null), ArticleFig(id=1261270433802928339, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图18, caption=
不同隧道埋深的初支轴力, figureFileSmall=Cqt7knPHnf0wxJ5QGtLzmw==, figureFileBig=t+m4U0325Op549M+9iKBwQ==, tableContent=null), ArticleFig(id=1261270434394325208, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.19, caption=
Initial support safety factor of different tunnel burial depths, figureFileSmall=zeREfKFKKig1WLWdPPmbww==, figureFileBig=sRa3S4YsT/opFiyKInS/Bg==, tableContent=null), ArticleFig(id=1261270434813755611, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图19, caption=
不同隧道埋深的初支安全系数, figureFileSmall=zeREfKFKKig1WLWdPPmbww==, figureFileBig=sRa3S4YsT/opFiyKInS/Bg==, tableContent=null), ArticleFig(id=1261270435216408799, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.20, caption=
Changes in parameters of initial support under different tunnel depths, figureFileSmall=xU3+LTP2SQRucMysF53/3Q==, figureFileBig=9jBVQWrP46e1wn6SR+/vZw==, tableContent=null), ArticleFig(id=1261270435384180963, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图20, caption=
不同隧道埋深下初支各参数变化, figureFileSmall=xU3+LTP2SQRucMysF53/3Q==, figureFileBig=9jBVQWrP46e1wn6SR+/vZw==, tableContent=null), ArticleFig(id=1261270435476455654, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.21, caption=
Calculation conditions for the relative distance between different soil rock interfaces and the top of the tunnel, figureFileSmall=bcwFQpsmtxNP33XwIeL7AQ==, figureFileBig=envDnx3GUPXLBJ2IivcUfQ==, tableContent=null), ArticleFig(id=1261270435640033514, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图21, caption=
不同土石界面与隧道顶部相对距离的计算工况, figureFileSmall=bcwFQpsmtxNP33XwIeL7AQ==, figureFileBig=envDnx3GUPXLBJ2IivcUfQ==, tableContent=null), ArticleFig(id=1261270435858137326, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.22, caption=
Initial support bending moment at different soil rock interfaces and relative distances to the top of the tunnel, figureFileSmall=mYJ+lF4XZMECkaCjqMweXw==, figureFileBig=z4KHCkq3jk7VRdR2ahIwMg==, tableContent=null), ArticleFig(id=1261270435962994929, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图22, caption=
不同土石界面与隧道顶部相对距离的初支弯矩, figureFileSmall=mYJ+lF4XZMECkaCjqMweXw==, figureFileBig=z4KHCkq3jk7VRdR2ahIwMg==, tableContent=null), ArticleFig(id=1261270436093018356, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.23, caption=
Initial support axial force at different soil rock interfaces and relative distances to the top of the tunnel, figureFileSmall=BebW8hPAkkgpcSVn6+FLcw==, figureFileBig=fLl+DyacGJKjauo374+oOQ==, tableContent=null), ArticleFig(id=1261270436302733559, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图23, caption=
不同土石界面与隧道顶部相对距离的初支轴力, figureFileSmall=BebW8hPAkkgpcSVn6+FLcw==, figureFileBig=fLl+DyacGJKjauo374+oOQ==, tableContent=null), ArticleFig(id=1261270436457922811, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.24, caption=
Initial support safety factor at different soil rock interfaces and relative distances to the top of the tunnel, figureFileSmall=n04Mb3n109KYRI44xKOf+w==, figureFileBig=502rPzoidsp4UxNwpZ9d1w==, tableContent=null), ArticleFig(id=1261270438290833662, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图24, caption=
不同土石界面与隧道顶部相对距离的初支安全系数, figureFileSmall=n04Mb3n109KYRI44xKOf+w==, figureFileBig=502rPzoidsp4UxNwpZ9d1w==, tableContent=null), ArticleFig(id=1261270438634766594, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.25, caption=
Changes in various parameters of initial support under different soil rock interfaces and relative distances to the top of the tunnel, figureFileSmall=AneR0ZOnCXAsNziW8b308A==, figureFileBig=2tFF1NEOGyrJok9SFINlpQ==, tableContent=null), ArticleFig(id=1261270438894813447, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图25, caption=
不同土石界面与隧道顶部相对距离下初支各参数变化, figureFileSmall=AneR0ZOnCXAsNziW8b308A==, figureFileBig=2tFF1NEOGyrJok9SFINlpQ==, tableContent=null), ArticleFig(id=1261270439196803338, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.26, caption=
Initial support steel frame stress variation curve, figureFileSmall=MH3UQC81v/aANEy+r615+w==, figureFileBig=tkyT8Uv+XWpT6+OHT9eFVA==, tableContent=null), ArticleFig(id=1261270439607845133, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图26, caption=
初支钢架应力变化曲线, figureFileSmall=MH3UQC81v/aANEy+r615+w==, figureFileBig=tkyT8Uv+XWpT6+OHT9eFVA==, tableContent=null), ArticleFig(id=1261270439960166673, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Fig.27, caption=
Initial support concrete stress variation curve, figureFileSmall=w5l8gQS2MogUSIGWKDdoGQ==, figureFileBig=mxHbbOrsTE3e5yduuYHbGA==, tableContent=null), ArticleFig(id=1261270440186659090, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=图27, caption=
初支混凝土应力变化曲线, figureFileSmall=w5l8gQS2MogUSIGWKDdoGQ==, figureFileBig=mxHbbOrsTE3e5yduuYHbGA==, tableContent=null), ArticleFig(id=1261270440383791382, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Table 1, caption=
Mechanical parameters of surrounding rock
, figureFileSmall=null, figureFileBig=null, tableContent=
| 围岩类型 | 容重/ (kN·m-3) | 弹性模量/ GPa | 黏聚力/ MPa | 摩擦角/ (°) | 泊松比 |
全风化 花岗岩 | 18.33 | 0.026 | 0.023 | 15.66 | 0.32 |
强风化 花岗岩 | 22.50 | 0.240 | 0.090 | 28.00 | 0.28 |
弱风化 花岗岩 | 26.30 | 9.110 | 3.540 | 42.96 | 0.24 |
), ArticleFig(id=1261270440505426201, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=表1, caption=
围岩力学参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 围岩类型 | 容重/ (kN·m-3) | 弹性模量/ GPa | 黏聚力/ MPa | 摩擦角/ (°) | 泊松比 |
全风化 花岗岩 | 18.33 | 0.026 | 0.023 | 15.66 | 0.32 |
强风化 花岗岩 | 22.50 | 0.240 | 0.090 | 28.00 | 0.28 |
弱风化 花岗岩 | 26.30 | 9.110 | 3.540 | 42.96 | 0.24 |
), ArticleFig(id=1261270440794833181, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=EN, label=Table 2, caption=
Material parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 支护类型 | 混凝土等级 | 容重/ (kN·m-3) | 弹性模量/ GPa | 泊松比 |
| 锚杆 | — | 78.500 | 210.000 | 0.20 |
| 初期支护 | C25 | 23.400 | 26.100 | 0.20 |
| 仰拱填充 | C20 | 23.000 | 25.500 | 0.20 |
| 注浆加固区 | — | 0.186 | 0.062 | 24.80 |
), ArticleFig(id=1261270441176514848, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1261270372167631577, language=CN, label=表2, caption=
材料参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 支护类型 | 混凝土等级 | 容重/ (kN·m-3) | 弹性模量/ GPa | 泊松比 |
| 锚杆 | — | 78.500 | 210.000 | 0.20 |
| 初期支护 | C25 | 23.400 | 26.100 | 0.20 |
| 仰拱填充 | C20 | 23.000 | 25.500 | 0.20 |
| 注浆加固区 | — | 0.186 | 0.062 | 24.80 |
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