Article(id=1273953279160651999, tenantId=1146029695717560320, journalId=1272209045839646724, issueId=1273953231114887613, articleNumber=null, orderNo=null, doi=10.20174/j.JUSE.2026.02.22, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1733241600000, receivedDateStr=2024-12-04, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1781663730658, onlineDateStr=2026-06-17, pubDate=1776614400000, pubDateStr=2026-04-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1781663730658, onlineIssueDateStr=2026-06-17, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1781663730658, creator=13701087609, updateTime=1781663730658, updator=13701087609, issue=Issue{id=1273953231114887613, tenantId=1146029695717560320, journalId=1272209045839646724, year='2026', volume='22', issue='2', pageStart='377', pageEnd='752', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1781663719203, creator=13701087609, updateTime=1781663760928, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1273953406235467954, tenantId=1146029695717560320, journalId=1272209045839646724, issueId=1273953231114887613, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1273953406235467955, tenantId=1146029695717560320, journalId=1272209045839646724, issueId=1273953231114887613, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=603, endPage=610, ext={EN=ArticleExt(id=1273953280704155874, articleId=1273953279160651999, tenantId=1146029695717560320, journalId=1272209045839646724, language=EN, title=Study on Large Eccentric Compression Performance of Double-Row Stud Composite Structure of Tunnel Support, columnId=null, journalTitle=Chinese Journal of Underground Space and Engineering, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Aiming at the problem of insufficient bearing capacity of tunnel primary support system under unfavorable geology, such as stress concentration zone and broken structural zone, a composite support structure with stud shear connectors arranged at the interface between steel and concrete is proposed. According to the stress characteristics of tunnel support structure, a large eccentric compression test is carried out to explore the failure mode and bearing characteristics of composite support structure, and the bearing capacity of composite structure under different eccentricity conditions is analyzed by numerical simulation. The results show that when there is no stud shear specimen, the separation failure occurs between I-shaped steel and shotcrete. When the stud shear is arranged, the failure mode of steel reinforced concrete structure is concrete cracking and crushing, and the stud shear effectively limits the relative slip between the contact interface of steel and concrete. Compared with the natural bonding condition, the ultimate bearing capacity of the specimens with double-row stud shear connectors increased by 14.79%, and the lateral deflection decreased by 22.94%. The specimens showed better toughness, bearing capacity and bending stiffness. Under the same eccentricity, the arrangement of stud shear connectors can effectively improve the ultimate bearing capacity of the structure, and with the increase of eccentricity, the effect of stud shear connectors on the bearing capacity of the specimen under large eccentric compression is gradually enhanced. The research results can provide theoretical support for the initial support technology of tunnel.

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针对应力集中带、破碎构造带等不良地质下隧道初期支护体系承载性能不足的问题,提出一种在型钢与混凝土界面布设栓钉剪力件的组合支护结构,针对隧道支护结构的受力特点开展大偏心受压试验来探究组合支护结构的破坏模式和承载特性,并通过数值模拟分析不同偏心距条件下组合结构承载性能。结果表明:当无栓钉剪力件时,工字型钢与喷射混凝土发生分离破坏,当布设栓钉剪力件时,型钢混凝土结构破坏模式表现为混凝土开裂和压溃,栓钉剪力件有效地限制了型钢与混凝土接触界面间的相对滑移;相较于自然粘结工况,布设双排形栓钉剪力件试件的极限承载力增长了14.79%,侧向挠度减小了22.94%,试件表现出较好的韧性、承载能力和抗弯刚度;在相同偏心距下,布设栓钉剪力件能有效提高结构的极限承载力,并且随着偏心距的增大,栓钉剪力件对试件的大偏压承载性能的提升效果逐渐增强。研究成果可为隧道初期支护技术提供理论支持。

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路军富(1978—),男,河南新乡人,博士,教授,主要从事隧道及地下工程方面的研究工作。E-mail:
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苗志豪(1999—),男,四川绵阳人,硕士,主要从事隧道及地下工程方面的研究工作。E-mail:

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苗志豪(1999—),男,四川绵阳人,硕士,主要从事隧道及地下工程方面的研究工作。E-mail:

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苗志豪(1999—),男,四川绵阳人,硕士,主要从事隧道及地下工程方面的研究工作。E-mail:

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隧道支护双排栓钉组合结构大偏心受压性能研究
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苗志豪 1 , 杨跃飞 2 , 路军富 1 , 张旭华 2
地下空间与工程学报 | 理论与试验研究 2026,22(2): 603-610
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地下空间与工程学报 | 理论与试验研究 2026, 22(2): 603-610
隧道支护双排栓钉组合结构大偏心受压性能研究
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苗志豪1 , 杨跃飞2, 路军富1 , 张旭华2
作者信息
  • 1.成都理工大学 地质灾害防治与地质环境保护国家重点实验室,成都 610059
  • 2.中铁九局集团第五工程有限公司,成都 611700
  • 苗志豪(1999—),男,四川绵阳人,硕士,主要从事隧道及地下工程方面的研究工作。E-mail:

通讯作者:

路军富(1978—),男,河南新乡人,博士,教授,主要从事隧道及地下工程方面的研究工作。E-mail:
Study on Large Eccentric Compression Performance of Double-Row Stud Composite Structure of Tunnel Support
Zhihao Miao1 , Yuefei Yang2, Junfu Lu1 , Xuhua Zhang2
Affiliations
  • 1.State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, P. R. China
  • 2.The China Railway No. 9 Group Fifth Engineering Co., Ltd, Chengdu 611700, P. R. China
出版时间: 2026-04-20 doi: 10.20174/j.JUSE.2026.02.22
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针对应力集中带、破碎构造带等不良地质下隧道初期支护体系承载性能不足的问题,提出一种在型钢与混凝土界面布设栓钉剪力件的组合支护结构,针对隧道支护结构的受力特点开展大偏心受压试验来探究组合支护结构的破坏模式和承载特性,并通过数值模拟分析不同偏心距条件下组合结构承载性能。结果表明:当无栓钉剪力件时,工字型钢与喷射混凝土发生分离破坏,当布设栓钉剪力件时,型钢混凝土结构破坏模式表现为混凝土开裂和压溃,栓钉剪力件有效地限制了型钢与混凝土接触界面间的相对滑移;相较于自然粘结工况,布设双排形栓钉剪力件试件的极限承载力增长了14.79%,侧向挠度减小了22.94%,试件表现出较好的韧性、承载能力和抗弯刚度;在相同偏心距下,布设栓钉剪力件能有效提高结构的极限承载力,并且随着偏心距的增大,栓钉剪力件对试件的大偏压承载性能的提升效果逐渐增强。研究成果可为隧道初期支护技术提供理论支持。

型钢-喷射混凝土组合结构  /  大偏心受压  /  承载能力  /  栓钉剪力件  /  极限承载力

Aiming at the problem of insufficient bearing capacity of tunnel primary support system under unfavorable geology, such as stress concentration zone and broken structural zone, a composite support structure with stud shear connectors arranged at the interface between steel and concrete is proposed. According to the stress characteristics of tunnel support structure, a large eccentric compression test is carried out to explore the failure mode and bearing characteristics of composite support structure, and the bearing capacity of composite structure under different eccentricity conditions is analyzed by numerical simulation. The results show that when there is no stud shear specimen, the separation failure occurs between I-shaped steel and shotcrete. When the stud shear is arranged, the failure mode of steel reinforced concrete structure is concrete cracking and crushing, and the stud shear effectively limits the relative slip between the contact interface of steel and concrete. Compared with the natural bonding condition, the ultimate bearing capacity of the specimens with double-row stud shear connectors increased by 14.79%, and the lateral deflection decreased by 22.94%. The specimens showed better toughness, bearing capacity and bending stiffness. Under the same eccentricity, the arrangement of stud shear connectors can effectively improve the ultimate bearing capacity of the structure, and with the increase of eccentricity, the effect of stud shear connectors on the bearing capacity of the specimen under large eccentric compression is gradually enhanced. The research results can provide theoretical support for the initial support technology of tunnel.

steel-shotcrete composite structure  /  large eccentric compression  /  bearing capacity  /  stud shear connector  /  ultimate bearing capacity
苗志豪, 杨跃飞, 路军富, 张旭华. 隧道支护双排栓钉组合结构大偏心受压性能研究. 地下空间与工程学报, 2026 , 22 (2) : 603 -610 . DOI: 10.20174/j.JUSE.2026.02.22
Zhihao Miao, Yuefei Yang, Junfu Lu, Xuhua Zhang. Study on Large Eccentric Compression Performance of Double-Row Stud Composite Structure of Tunnel Support[J]. Chinese Journal of Underground Space and Engineering, 2026 , 22 (2) : 603 -610 . DOI: 10.20174/j.JUSE.2026.02.22
  • 国家自然科学基金面上项目(51978088)
  • SKLGP国家重点实验室自主课题(SKLGP2021Z007)
2026年第22卷第2期
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doi: 10.20174/j.JUSE.2026.02.22
  • 接收时间:2024-12-04
  • 首发时间:2026-06-17
  • 出版时间:2026-04-20
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  • 收稿日期:2024-12-04
基金
国家自然科学基金面上项目(51978088)
SKLGP国家重点实验室自主课题(SKLGP2021Z007)
作者信息
    1.成都理工大学 地质灾害防治与地质环境保护国家重点实验室,成都 610059
    2.中铁九局集团第五工程有限公司,成都 611700

通讯作者:

路军富(1978—),男,河南新乡人,博士,教授,主要从事隧道及地下工程方面的研究工作。E-mail:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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