Article(id=1273953309984542875, tenantId=1146029695717560320, journalId=1272209045839646724, issueId=1273953231114887613, articleNumber=null, orderNo=null, doi=10.20174/j.JUSE.2026.02.29, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1746460800000, receivedDateStr=2025-05-06, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1781663738007, onlineDateStr=2026-06-17, pubDate=1776614400000, pubDateStr=2026-04-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1781663738007, onlineIssueDateStr=2026-06-17, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1781663738007, creator=13701087609, updateTime=1781663738007, 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=673, endPage=684, ext={EN=ArticleExt(id=1273953310299115677, articleId=1273953309984542875, tenantId=1146029695717560320, journalId=1272209045839646724, language=EN, title=Optimization Study on Temporary Support Removal Scheme for Super-Large-Span Metro Tunnel Constructed by Double-Layer Primary Arch Cover Method, columnId=null, journalTitle=Chinese Journal of Underground Space and Engineering, columnName=null, runingTitle=null, highlight=null, articleAbstract=

At present, the construction of large-span and super-large-span subway tunnels is increasing. Temporary support is often designed to reduce the span in the construction of those tunnels. However, temporary support needs to be removed before secondary lining is constructed due to the spatial overlap between them. The removal of temporary support is the weak situation, because the original stress balance of the structure will be broken. Improper construction can easily cause safety accidents such as tunnel collapse. In view of the lack of systematic research on the structural mechanical response and safety of the super-large-span tunnel constructed by the double-layer initial support arch-cover method at home and abroad, this paper takes the four-line parallel tunnel of Huahua section of Guangzhou Metro Line 11 as the basis project. Through the combination of theoretical analysis and numerical calculation, the mechanical response and safety of the structure during the dismantling of the tunnel are analyzed from both horizontal and vertical aspects. Finally, a scientific, reasonable, safe, efficient and rapid dismantling scheme was determined, and successfully passed the inspection of on-site construction. The results show that it is feasible to dismantle the super-large-span tunnel in urban soft stratum by using the scheme of 'first edge and then middle, and symmetrical demolition in cross direction, first three demolition and one demolition, and then one demolition and one demolition in longitudinal direction', which can provide reference and guidance for subsequent projects.

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目前,大跨、超大跨地铁隧道修建呈现递增趋势。大跨、超大跨隧道常设计临时支撑以减小跨度,但由于临时支撑与二次衬砌在空间上的相互干涉,需在二衬施做前拆除临时支撑。拆撑会打破结构原有受力平衡,是结构受力的薄弱环节,施工不当极易造成隧道塌方等安全事故。鉴于国内外关于采用双层初支拱盖法修建的超大跨隧道拆撑的结构力学响应及安全性仍缺乏系统的研究,以广州地铁11号线华华区段四线并行折返线区间隧道为依托工程,通过理论分析与数值计算相结合的方式,从横向和纵向两方面对隧道拆撑时结构的力学响应以及安全性进行分析,最终确定了科学、合理、安全、高效、快速的拆撑施工方案,并顺利通过了现场施工的检验。结果表明:城市软弱地层超大跨隧道采用“横向先边后中、对称拆除,纵向先隔三拆一、后隔一拆一”的拆撑方案是切实可行的,可为后续工程提供借鉴与指导。

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马龙祥(1988—),男,成都人,工学博士,副教授,主要从事隧道与地下工程方向的研究。E-mail:
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宋汉峰(1998—),男,湖南郴州人,助理工程师,主要从事地铁隧道施工及技术管理方向的研究。E-mail:

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宋汉峰(1998—),男,湖南郴州人,助理工程师,主要从事地铁隧道施工及技术管理方向的研究。E-mail:

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宋汉峰(1998—),男,湖南郴州人,助理工程师,主要从事地铁隧道施工及技术管理方向的研究。E-mail:

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超大跨双层初支拱盖法地铁隧道拆撑方案优化研究
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宋汉峰 1 , 尹学鑫 2 , 贺贤群 2 , 马龙祥 3 , 舒文韬 3
地下空间与工程学报 | 设计、施工、监测 2026,22(2): 673-684
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地下空间与工程学报 | 设计、施工、监测 2026, 22(2): 673-684
超大跨双层初支拱盖法地铁隧道拆撑方案优化研究
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宋汉峰1 , 尹学鑫2, 贺贤群2, 马龙祥3 , 舒文韬3
作者信息
  • 1.广州地铁建设管理有限公司,广州 510220
  • 2.中铁三局集团广东建设工程有限公司,广州 510000
  • 3.西南交通大学 交通隧道工程教育部重点实验室,成都 610031
  • 宋汉峰(1998—),男,湖南郴州人,助理工程师,主要从事地铁隧道施工及技术管理方向的研究。E-mail:

通讯作者:

马龙祥(1988—),男,成都人,工学博士,副教授,主要从事隧道与地下工程方向的研究。E-mail:
Optimization Study on Temporary Support Removal Scheme for Super-Large-Span Metro Tunnel Constructed by Double-Layer Primary Arch Cover Method
Hanfeng Song1 , Xuexin Yin2, Xianqun He2, Longxiang Ma3 , Wentao Shu3
Affiliations
  • 1.Guangzhou Metro Construction Management Co., Ltd., Guangzhou 510200, P. R. China
  • 2.China Railway No. 3 Engineering Group Guangdong Construction Engineering Co., Ltd., Guangzhou 510000, P. R. China
  • 3.Key Laboratory of Transportation Tunnel Engineering of the Ministry of Education, Southwest Jiaotong University, Chengdu 610031, P. R. China
出版时间: 2026-04-20 doi: 10.20174/j.JUSE.2026.02.29
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目前,大跨、超大跨地铁隧道修建呈现递增趋势。大跨、超大跨隧道常设计临时支撑以减小跨度,但由于临时支撑与二次衬砌在空间上的相互干涉,需在二衬施做前拆除临时支撑。拆撑会打破结构原有受力平衡,是结构受力的薄弱环节,施工不当极易造成隧道塌方等安全事故。鉴于国内外关于采用双层初支拱盖法修建的超大跨隧道拆撑的结构力学响应及安全性仍缺乏系统的研究,以广州地铁11号线华华区段四线并行折返线区间隧道为依托工程,通过理论分析与数值计算相结合的方式,从横向和纵向两方面对隧道拆撑时结构的力学响应以及安全性进行分析,最终确定了科学、合理、安全、高效、快速的拆撑施工方案,并顺利通过了现场施工的检验。结果表明:城市软弱地层超大跨隧道采用“横向先边后中、对称拆除,纵向先隔三拆一、后隔一拆一”的拆撑方案是切实可行的,可为后续工程提供借鉴与指导。

超大跨地铁隧道  /  拆撑  /  双层初支拱盖法  /  跳仓法  /  数值模拟

At present, the construction of large-span and super-large-span subway tunnels is increasing. Temporary support is often designed to reduce the span in the construction of those tunnels. However, temporary support needs to be removed before secondary lining is constructed due to the spatial overlap between them. The removal of temporary support is the weak situation, because the original stress balance of the structure will be broken. Improper construction can easily cause safety accidents such as tunnel collapse. In view of the lack of systematic research on the structural mechanical response and safety of the super-large-span tunnel constructed by the double-layer initial support arch-cover method at home and abroad, this paper takes the four-line parallel tunnel of Huahua section of Guangzhou Metro Line 11 as the basis project. Through the combination of theoretical analysis and numerical calculation, the mechanical response and safety of the structure during the dismantling of the tunnel are analyzed from both horizontal and vertical aspects. Finally, a scientific, reasonable, safe, efficient and rapid dismantling scheme was determined, and successfully passed the inspection of on-site construction. The results show that it is feasible to dismantle the super-large-span tunnel in urban soft stratum by using the scheme of 'first edge and then middle, and symmetrical demolition in cross direction, first three demolition and one demolition, and then one demolition and one demolition in longitudinal direction', which can provide reference and guidance for subsequent projects.

super-large-span metro tunnel  /  removal of temporary support  /  double-layer primary arch cover method  /  alternate bay construction method  /  numerical simulation
宋汉峰, 尹学鑫, 贺贤群, 马龙祥, 舒文韬. 超大跨双层初支拱盖法地铁隧道拆撑方案优化研究. 地下空间与工程学报, 2026 , 22 (2) : 673 -684 . DOI: 10.20174/j.JUSE.2026.02.29
Hanfeng Song, Xuexin Yin, Xianqun He, Longxiang Ma, Wentao Shu. Optimization Study on Temporary Support Removal Scheme for Super-Large-Span Metro Tunnel Constructed by Double-Layer Primary Arch Cover Method[J]. Chinese Journal of Underground Space and Engineering, 2026 , 22 (2) : 673 -684 . DOI: 10.20174/j.JUSE.2026.02.29
2026年第22卷第2期
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doi: 10.20174/j.JUSE.2026.02.29
  • 接收时间:2025-05-06
  • 首发时间:2026-06-17
  • 出版时间:2026-04-20
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  • 收稿日期:2025-05-06
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    1.广州地铁建设管理有限公司,广州 510220
    2.中铁三局集团广东建设工程有限公司,广州 510000
    3.西南交通大学 交通隧道工程教育部重点实验室,成都 610031

通讯作者:

马龙祥(1988—),男,成都人,工学博士,副教授,主要从事隧道与地下工程方向的研究。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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