Article(id=1318999901237784577, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1318999770132234870, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1672-6073.2025.05.013, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1733068800000, receivedDateStr=2024-12-02, revisedDate=1750348800000, revisedDateStr=2025-06-20, acceptedDate=null, acceptedDateStr=null, onlineDate=1792403682287, onlineDateStr=2026-10-19, pubDate=1760025600000, pubDateStr=2025-10-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792403682287, onlineIssueDateStr=2026-10-19, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792403682287, creator=13701087609, updateTime=1792403682287, updator=13701087609, issue=Issue{id=1318999770132234870, tenantId=1146029695717560320, journalId=1146123302524792850, year='2025', volume='38', issue='5', pageStart='1', pageEnd='158', issueExtLink='null', onlineDate='null', pubDate='1760025600000', pubDateStr='2025-10-10', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792403651030, creator='13701087609', updateTime=1792733338119, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1320382578062902170, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1318999770132234870, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1320382578062902171, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1318999770132234870, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=103, endPage=113, ext={EN=ArticleExt(id=1318999901464276994, articleId=1318999901237784577, tenantId=1146029695717560320, journalId=1146123302524792850, language=EN, title=Impact Analysis of Close-Proximity Shield Underpassing beneath Existing Bridge Substructures, columnId=1152669336394183038, journalTitle=Urban Rapid Rail Transit, columnName=Civil Engineering Technology, runingTitle=null, highlight=null, articleAbstract=

In order to evaluate the safety impact of shield tunneling under close range on existing bridge pile foundations, this article focuses on a practical project and studies the influence of shield tunneling on the deformation of the lower structure of the bridge, the disturbance degree of a single pile, and the bearing capacity of the pile foundation in the vicinity of the bridge pile foundation area, especially when operating within a range of 3.0 meters from the pile foundation and crossing directly below it. The study adopts a combination of on-site monitoring and numerical simulation to systematically analyze the response characteristics of pile foundations during shield tunneling construction, and evaluates their impact in different zones based on the degree of disturbance. The results show that: ① When the shield tunneling machine excavates in the moderately weathered limestone layer with a horizontal clearance of 0 m, the induced single pile stress disturbance is significant, and the impact level is “strong impact”; ② When tunneling in strongly weathered limestone layers, due to insufficient residual bearing capacity of the pile foundation, the impact level within a horizontal distance of 3.0 m and a vertical range of 1.0~3.0 m is classified as “strong impact”; ③ When the rock embedding depth of the pile foundation is 1.0, 2.0, and 4.0 meters, significant single pile stress disturbances occur, and the impact level is also “strong influence”. The research conclusion can provide theoretical basis and engineering reference for the safety assessment and construction risk control of the interaction between shield tunnels and bridge pile foundations in similar projects.

, authors=Zhixiong LI1, Yongliu LI1, Wufeng MAO2, Jinyan XIANG3, Tingjin LIU3, Liangyi CAI3, authorsList=Zhixiong LI, Yongliu LI, Wufeng MAO, Jinyan XIANG, Tingjin LIU, Liangyi CAI, authorCompany=null, correspAuthors=Tingjin LIU, 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=1318999901720129539, articleId=1318999901237784577, tenantId=1146029695717560320, journalId=1146123302524792850, language=CN, title=盾构近距离下穿施工对既有桥梁下部结构的影响, columnId=1152669336603898239, journalTitle=都市快轨交通, columnName=土建技术, runingTitle=null, highlight=null, articleAbstract=

针对评估盾构隧道近距离下穿对既有桥梁桩基的安全影响问题,以某实际工程为依托,重点研究盾构在邻近桥梁桩基区域,尤其是在距离桩基3.0 m范围内作业及正下方穿越时,对桥梁下部结构变形、单桩扰动度及桩基承载力的影响。研究采用现场监测与数值模拟相结合的方法,对盾构施工过程中的桩基响应特征进行系统分析,并基于扰动程度对其影响进行分区评估。结果表明:①当盾构在中风化灰岩层中掘进且水平净距为0 m时,诱发的单桩应力扰动度显著,影响等级为“强影响”;②盾构在强风化灰岩层中掘进时,由于桩基剩余承载力不足,在水平距离3.0 m,竖向1.0~3.0 m范围内的影响等级均为“强影响”;③当桩基嵌岩深度为1.0、2.0和4.0 m时,均出现较大单桩应力扰动,影响等级亦为“强影响”。研究结论可为类似工程中盾构隧道与桥梁桩基相互作用的安全评估与施工风险控制提供理论依据与工程参考。

, authors=李志雄1, 李永骝1, 毛武峰2, 向锦艳3, 刘庭金3, 蔡良怡3, authorsList=李志雄, 李永骝, 毛武峰, 向锦艳, 刘庭金, 蔡良怡, authorCompany=null, correspAuthors=刘庭金, authorNote=

李志雄,男,高级工程师,主要从事轨道交通土建工程现场管理和土建技术研究,

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刘庭金,博士,教授,博士生导师,主要从事地铁结构安全评估和下穿涉路涉桥安全评价技术研究,
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李志雄,男,高级工程师,主要从事轨道交通土建工程现场管理和土建技术研究,

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李志雄,男,高级工程师,主要从事轨道交通土建工程现场管理和土建技术研究,

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盾构近距离下穿施工对既有桥梁下部结构的影响
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李志雄 1 , 李永骝 1 , 毛武峰 2 , 向锦艳 3 , 刘庭金 3 , 蔡良怡 3
都市快轨交通 | 土建技术 2025,38(5): 103-113
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都市快轨交通 |土建技术 2025 , 38 (5) : 103 -113
盾构近距离下穿施工对既有桥梁下部结构的影响
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李志雄1 , 李永骝1, 毛武峰2, 向锦艳3, 刘庭金3 , 蔡良怡3
作者信息
  • 1.广州地铁建设管理有限公司,广州 510220
  • 2.广州地铁设计研究院股份有限公司,广州 510010
  • 3.华南理工大学土木与交通学院,广州 510641
通讯作者:
刘庭金,博士,教授,博士生导师,主要从事地铁结构安全评估和下穿涉路涉桥安全评价技术研究,
作者简介:

李志雄,男,高级工程师,主要从事轨道交通土建工程现场管理和土建技术研究,

Impact Analysis of Close-Proximity Shield Underpassing beneath Existing Bridge Substructures
Zhixiong LI1 , Yongliu LI1, Wufeng MAO2, Jinyan XIANG3, Tingjin LIU3 , Liangyi CAI3
Affiliations
  • 1.Guangzhou Metro Construction Management Co., Ltd., Guangzhou 510220
  • 2.Guangzhou Metro Design & Research Institute Co., Ltd., Guangzhou 510010
  • 3.School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641
出版时间: 2025-10-10 doi: 10.3969/j.issn.1672-6073.2025.05.013
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针对评估盾构隧道近距离下穿对既有桥梁桩基的安全影响问题,以某实际工程为依托,重点研究盾构在邻近桥梁桩基区域,尤其是在距离桩基3.0 m范围内作业及正下方穿越时,对桥梁下部结构变形、单桩扰动度及桩基承载力的影响。研究采用现场监测与数值模拟相结合的方法,对盾构施工过程中的桩基响应特征进行系统分析,并基于扰动程度对其影响进行分区评估。结果表明:①当盾构在中风化灰岩层中掘进且水平净距为0 m时,诱发的单桩应力扰动度显著,影响等级为“强影响”;②盾构在强风化灰岩层中掘进时,由于桩基剩余承载力不足,在水平距离3.0 m,竖向1.0~3.0 m范围内的影响等级均为“强影响”;③当桩基嵌岩深度为1.0、2.0和4.0 m时,均出现较大单桩应力扰动,影响等级亦为“强影响”。研究结论可为类似工程中盾构隧道与桥梁桩基相互作用的安全评估与施工风险控制提供理论依据与工程参考。

盾构隧道  /  桥梁结构  /  下穿施工  /  数值模拟  /  影响分区

In order to evaluate the safety impact of shield tunneling under close range on existing bridge pile foundations, this article focuses on a practical project and studies the influence of shield tunneling on the deformation of the lower structure of the bridge, the disturbance degree of a single pile, and the bearing capacity of the pile foundation in the vicinity of the bridge pile foundation area, especially when operating within a range of 3.0 meters from the pile foundation and crossing directly below it. The study adopts a combination of on-site monitoring and numerical simulation to systematically analyze the response characteristics of pile foundations during shield tunneling construction, and evaluates their impact in different zones based on the degree of disturbance. The results show that: ① When the shield tunneling machine excavates in the moderately weathered limestone layer with a horizontal clearance of 0 m, the induced single pile stress disturbance is significant, and the impact level is “strong impact”; ② When tunneling in strongly weathered limestone layers, due to insufficient residual bearing capacity of the pile foundation, the impact level within a horizontal distance of 3.0 m and a vertical range of 1.0~3.0 m is classified as “strong impact”; ③ When the rock embedding depth of the pile foundation is 1.0, 2.0, and 4.0 meters, significant single pile stress disturbances occur, and the impact level is also “strong influence”. The research conclusion can provide theoretical basis and engineering reference for the safety assessment and construction risk control of the interaction between shield tunnels and bridge pile foundations in similar projects.

shield tunnel  /  bridge structure  /  underpassing construction  /  numerical modelling  /  impact zoning
李志雄, 李永骝, 毛武峰, 向锦艳, 刘庭金, 蔡良怡. 盾构近距离下穿施工对既有桥梁下部结构的影响. 都市快轨交通, 2025 , 38 (5) : 103 -113 . DOI: 10.3969/j.issn.1672-6073.2025.05.013
Zhixiong LI, Yongliu LI, Wufeng MAO, Jinyan XIANG, Tingjin LIU, Liangyi CAI. Impact Analysis of Close-Proximity Shield Underpassing beneath Existing Bridge Substructures[J]. Urban Rapid Rail Transit, 2025 , 38 (5) : 103 -113 . DOI: 10.3969/j.issn.1672-6073.2025.05.013
  • 广东省自然科学基金(2023A1515012084)
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2025年第38卷第5期
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doi: 10.3969/j.issn.1672-6073.2025.05.013
  • 接收时间:2024-12-02
  • 首发时间:2026-10-19
  • 出版时间:2025-10-10
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  • 收稿日期:2024-12-02
  • 修回日期:2025-06-20
基金
广东省自然科学基金(2023A1515012084)
作者信息
    1.广州地铁建设管理有限公司,广州 510220
    2.广州地铁设计研究院股份有限公司,广州 510010
    3.华南理工大学土木与交通学院,广州 510641

通讯作者:

刘庭金,博士,教授,博士生导师,主要从事地铁结构安全评估和下穿涉路涉桥安全评价技术研究,
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2种不同金属材料的力学参数
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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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