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Article(id=1318999928509149452, tenantId=1146029695717560320, journalId=1146123302524792850, issueId=1318999770132234870, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1672-6073.2025.05.014, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1732464000000, receivedDateStr=2024-11-25, revisedDate=1750262400000, revisedDateStr=2025-06-19, acceptedDate=null, acceptedDateStr=null, onlineDate=1792403688789, onlineDateStr=2026-10-19, pubDate=1760025600000, pubDateStr=2025-10-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792403688789, onlineIssueDateStr=2026-10-19, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792403688789, creator=13701087609, updateTime=1792403688789, 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=114, endPage=123, ext={EN=ArticleExt(id=1318999928706281741, articleId=1318999928509149452, tenantId=1146029695717560320, journalId=1146123302524792850, language=EN, title=Tool Study of Shield Cutting Group Piles in Complex Strata, columnId=1152669336394183038, journalTitle=Urban Rapid Rail Transit, columnName=Civil Engineering Technology, runingTitle=null, highlight=null, articleAbstract=

To address the technical challenge of balancing pile foundation treatment efficiency and structural safety during shield tunneling beneath urban viaducts, this study focuses on key issues of shield cutting pile groups in mudstone strata, taking the Sichuan Normal University-Jiaozi Overpass section of Chengdu Rail Transit Line 13 as the engineering background. Through innovative cutter selection and construction control technology, a comprehensive shield pile-cutting solution that balances construction efficiency and structural safety has been developed. Combining theoretical analysis with numerical simulation, parameters such as the front angle, blade angle, and blade width of shell cutters were optimized. The research results indicate: ① A composite cutterhead with 6 panels +6 spokes, equipped with double-edged shell cutters featuring -45° front angle (zero back angle), 90° blade angle, and 10 mm blade width, significantly improves shield pile-cutting effectiveness; ② The optimized tool arrangement combining disc cutters, scrapers, shell cutters, and pre-cutters, along with shield machine system improvements and construction control measures, achieves optimal pile-cutting performance; ③ Field monitoring shows maximum pile-top settlement of 2.81 mm and post-stabilization settlement of 1.75 mm, with 76.3% of discharged reinforcement bars shorter than 750 mm and 70.1% showing clean-cut fractures, demonstrating reasonable cutter layout that effectively severs most reinforcement while minimally impacting pile-top settlement. These findings provide valuable references for shield pile-cutting methods in complex strata.

, authors=Tianshe SUN1, 2, Xinyang ZHANG3, 4, Jianlei HAO1, 2, Chi LI3, 4, Jiakai YU3, 4, Yusheng SHEN3, 4, authorsList=Tianshe SUN, Xinyang ZHANG, Jianlei HAO, Chi LI, Jiakai YU, Yusheng SHEN, authorCompany=null, correspAuthors=Yusheng SHEN, 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=1318999928953745678, articleId=1318999928509149452, tenantId=1146029695717560320, journalId=1146123302524792850, language=CN, title=复杂地层盾构切削群桩的刀具研究, columnId=1152669336603898239, journalTitle=都市快轨交通, columnName=土建技术, runingTitle=null, highlight=null, articleAbstract=

为解决盾构下穿城市高架桥时桩基处理效率与结构安全难以兼顾的技术难题，本文以成都轨道交通13号线四川师大-娇子立交区间工程为背景，针对泥岩地层中盾构切削群桩的关键问题展开研究。通过创新刀具选型与施工控制技术，建立一套兼顾施工效率与结构安全的盾构切桩综合解决方案。研究采用理论分析与数值模拟相结合的方法，对贝壳刀前角、刃角及刃宽等参数进行优化。研究结果表明：①盾构刀盘采用6面板+6辐条复合式刀盘，切桩采用前角-45°零后角、90°刃角、10 mm刃宽的双面刃贝壳刀，可提升盾构切桩效果；②设计滚刀+刮刀+贝壳刀+先行刀的刀具布置，通过盾构机系统改进技术和施工控制措施，使切桩达到最佳效果；③现场实测桩顶最大沉降仅2.81 mm，稳定后沉降1.75 mm；排出长度小于750 mm的钢筋约占76.3%，断口形式为切断的钢筋约占70.1%，说明刀盘刀具布置形式合理，能有效切断大部分钢筋，同时对桩顶沉降影响较小。研究结果可为盾构切桩工法在复杂地层切削群桩提供参考。

, authors=孙天赦1, 2, 张昕阳3, 4, 郝建雷1, 2, 李驰3, 4, 余嘉楷3, 4, 申玉生3, 4, authorsList=孙天赦, 张昕阳, 郝建雷, 李驰, 余嘉楷, 申玉生, authorCompany=null, correspAuthors=申玉生, authorNote=

孙天赦，男，学士，工程师，从事隧道与地下工程研究，

, correspAuthorsNote=
申玉生，男，博士，教授，从事隧道与地下工程研究，
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孙天赦，男，学士，工程师，从事隧道与地下工程研究，

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孙天赦，男，学士，工程师，从事隧道与地下工程研究，

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复杂地层盾构切削群桩的刀具研究
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孙天赦 1, 2 , 张昕阳 3, 4 , 郝建雷 1, 2 , 李驰 3, 4 , 余嘉楷 3, 4 , 申玉生 3, 4
都市快轨交通 | 土建技术 2025,38(5): 114-123
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都市快轨交通 |土建技术 2025 , 38 (5) : 114 -123
复杂地层盾构切削群桩的刀具研究
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孙天赦1, 2 , 张昕阳3, 4, 郝建雷1, 2, 李驰3, 4, 余嘉楷3, 4, 申玉生3, 4
作者信息
  • 1.中铁四局集团有限公司，合肥　230022
  • 2.中铁四局集团第二工程有限公司，江苏　苏州　215131
  • 3.西南交通大学交通隧道工程教育部重点实验室，成都　610031
  • 4.西南交通大学陆地交通地质灾害防治技术国家工程研究中心，成都　610031
通讯作者:
申玉生，男，博士，教授，从事隧道与地下工程研究，
作者简介:

孙天赦，男，学士，工程师，从事隧道与地下工程研究，

Tool Study of Shield Cutting Group Piles in Complex Strata
Tianshe SUN1, 2 , Xinyang ZHANG3, 4, Jianlei HAO1, 2, Chi LI3, 4, Jiakai YU3, 4, Yusheng SHEN3, 4
Affiliations
  • 1.China Railway No.4 Engineering Group Co., Ltd., Hefei 230022
  • 2.The Second Engineering Co., Ltd., of CTCE Group, Suzhou, Jiangsu 215131
  • 3.Key Laboratory of Transportation Tunnel Engineering of the Ministry of Education, Southwest Jiaotong University, Chengdu 610031
  • 4.Nation Engineering Research Center of Geological Disaster Prevention Technology in Land Transportation, Southwest Jiaotong University, Chengdu 610031
出版时间: 2025-10-10 doi: 10.3969/j.issn.1672-6073.2025.05.014
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为解决盾构下穿城市高架桥时桩基处理效率与结构安全难以兼顾的技术难题，本文以成都轨道交通13号线四川师大-娇子立交区间工程为背景，针对泥岩地层中盾构切削群桩的关键问题展开研究。通过创新刀具选型与施工控制技术，建立一套兼顾施工效率与结构安全的盾构切桩综合解决方案。研究采用理论分析与数值模拟相结合的方法，对贝壳刀前角、刃角及刃宽等参数进行优化。研究结果表明：①盾构刀盘采用6面板+6辐条复合式刀盘，切桩采用前角-45°零后角、90°刃角、10 mm刃宽的双面刃贝壳刀，可提升盾构切桩效果；②设计滚刀+刮刀+贝壳刀+先行刀的刀具布置，通过盾构机系统改进技术和施工控制措施，使切桩达到最佳效果；③现场实测桩顶最大沉降仅2.81 mm，稳定后沉降1.75 mm；排出长度小于750 mm的钢筋约占76.3%，断口形式为切断的钢筋约占70.1%，说明刀盘刀具布置形式合理，能有效切断大部分钢筋，同时对桩顶沉降影响较小。研究结果可为盾构切桩工法在复杂地层切削群桩提供参考。

城市轨道交通  /  盾构隧道  /  切削桥梁桩基  /  刀具设计  /  施工控制  /  泥岩地层

To address the technical challenge of balancing pile foundation treatment efficiency and structural safety during shield tunneling beneath urban viaducts, this study focuses on key issues of shield cutting pile groups in mudstone strata, taking the Sichuan Normal University-Jiaozi Overpass section of Chengdu Rail Transit Line 13 as the engineering background. Through innovative cutter selection and construction control technology, a comprehensive shield pile-cutting solution that balances construction efficiency and structural safety has been developed. Combining theoretical analysis with numerical simulation, parameters such as the front angle, blade angle, and blade width of shell cutters were optimized. The research results indicate: ① A composite cutterhead with 6 panels +6 spokes, equipped with double-edged shell cutters featuring -45° front angle (zero back angle), 90° blade angle, and 10 mm blade width, significantly improves shield pile-cutting effectiveness; ② The optimized tool arrangement combining disc cutters, scrapers, shell cutters, and pre-cutters, along with shield machine system improvements and construction control measures, achieves optimal pile-cutting performance; ③ Field monitoring shows maximum pile-top settlement of 2.81 mm and post-stabilization settlement of 1.75 mm, with 76.3% of discharged reinforcement bars shorter than 750 mm and 70.1% showing clean-cut fractures, demonstrating reasonable cutter layout that effectively severs most reinforcement while minimally impacting pile-top settlement. These findings provide valuable references for shield pile-cutting methods in complex strata.

urban rail transit  /  shield tunnel  /  bridge pile foundation cutting  /  cutter design  /  construction control  /  mudstone formation
孙天赦, 张昕阳, 郝建雷, 李驰, 余嘉楷, 申玉生. 复杂地层盾构切削群桩的刀具研究. 都市快轨交通, 2025 , 38 (5) : 114 -123 . DOI: 10.3969/j.issn.1672-6073.2025.05.014
Tianshe SUN, Xinyang ZHANG, Jianlei HAO, Chi LI, Jiakai YU, Yusheng SHEN. Tool Study of Shield Cutting Group Piles in Complex Strata[J]. Urban Rapid Rail Transit, 2025 , 38 (5) : 114 -123 . DOI: 10.3969/j.issn.1672-6073.2025.05.014
基金
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  • 国家重点研发计划(2019YFC0605104)
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2025年第38卷第5期
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doi: 10.3969/j.issn.1672-6073.2025.05.014
  • 接收时间：2024-11-25
  • 首发时间：2026-10-19
  • 出版时间：2025-10-10
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  • 收稿日期：2024-11-25
  • 修回日期：2025-06-19
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国家重点研发计划(2019YFC0605104)
作者信息
    1.中铁四局集团有限公司，合肥　230022
    2.中铁四局集团第二工程有限公司，江苏　苏州　215131
    3.西南交通大学交通隧道工程教育部重点实验室，成都　610031
    4.西南交通大学陆地交通地质灾害防治技术国家工程研究中心，成都　610031

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申玉生，男，博士，教授，从事隧道与地下工程研究，
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2种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
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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