拼装误差对盾构隧道承载力的影响研究
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- 英文论文题名：Influence of Installation Errors on Bearing Capacity of Shield Tunnel
- 论文作者：张冬梅 ; 张兆远 ; 顾丽江 ; 樊玉英
- 英文论文作者：ZHANG Dongmei ; ZHANG Zhaoyuan ; GU Lijiang ; FAN Yuying ; Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education ; Tongji University ; Department of Geotechnical Engineering ; Tongji University ; Yongshun Xizhou Junior High School
- 年：2016
- 作者机构：同济大学岩土及地下工程教育部重点实验室同济大学;同济大学土木工程学院地下建筑与工程系;永顺县溪州中学;
- 论文关键词：盾构隧道 ; 拼装误差 ; 直径变化量 ; 接头张开量 ; 混凝土应力 ; 螺栓应力
- 英文论文关键词：Shield tunnel ; Installation ; Errors convergence ; Deformation ; Segment's dislocation ; Concrete stress ; Bolt tension stress
- 会议召开时间：2016-10-24
- 会议录名称：2016中国隧道与地下工程大会（CTUC）暨中国土木工程学会隧道及地下工程分会第十九届年会论文集
- 语种：中文
- 分类号：U455.43
- 学会代码：OGTY
- 会议名称：2016中国隧道与地下工程大会（CTUC）暨中国土木工程学会隧道及地下工程分会第十九届年会
- 会议地点：中国四川成都
- 主办单位：中国土木工程学会隧道及地下工程分会
- 学会名称：中国土木工程学会
- 页数：9
- 文件大小：4010k
- 原文格式：O
- 会议级别：全国
摘要
利用数值分析方法,以螺栓应力、混凝土应力、接头张开量、隧道直径变化量为隧道承载力指标,通过对比分析理想正圆拼装状态下和拼装误差条件下,螺栓应力、混凝土应力、接头张开量、隧道直径变化量的发展规律,得到拼装误差对盾构隧道承载力的影响规律。研究表明,分别以混凝土应力、纵缝张开、螺栓应力为指标,得到的拼装误差最不利组合各不相同,且以接头张开量为指标的拼装误差最不利组合对隧道承载力的影响最为显著,会使纵缝张开量增加约7%;考虑拼装误差的影响,当隧道直径变化量在45.2 mm~88.0 mm时,应密切关注隧道性态的发展,并且以顶部和腰部接缝为重点观测对象。
The effect of installation errors of segmental lining on the bearing capacity of the shield tunnelwas studied in terms of concrete stress,bolt tension stress,longitudinal joint opening using FEM simulation.The simulation resultsindicate that:the most unfavorable combination of installation errorsin terms of concrete stress,bolt tension stress,longitudinal joint opening,can be different.The longitudinal joint opening-based most unfavorable combination of installation errors exhibits most significant influence on the bearing capacity of shield tunnel.Besides,the reduction of horizontal diameter is between 45.2 mm and 88 mm,the bearing capacity can decrease significantly.
The effect of installation errors of segmental lining on the bearing capacity of the shield tunnelwas studied in terms of concrete stress,bolt tension stress,longitudinal joint opening using FEM simulation.The simulation resultsindicate that:the most unfavorable combination of installation errorsin terms of concrete stress,bolt tension stress,longitudinal joint opening,can be different.The longitudinal joint opening-based most unfavorable combination of installation errors exhibits most significant influence on the bearing capacity of shield tunnel.Besides,the reduction of horizontal diameter is between 45.2 mm and 88 mm,the bearing capacity can decrease significantly.
引文
[1]万晓东.盾构隧道管片拼装技术施工质量控制[J].桥梁隧道,2012:252-253.WAN Xiaodong.Construction Quality Control of the Erection technology of Shield tunnel segment[J].Bridge and Tunnel,2012:252-253.
[2]周文波.盾构法隧道施工技术及应用[M].北京:中国建筑出版社,2004.ZHOU Wenbo.Shield Tunneling Technology[M].Beijing:ChinaArchitecture&BuildingPress,2004.
[3]王勤.盾构法隧道管片设计与拼装技术[J].西部探矿工程,2006:130-132.WANG Qin.The Segment Construction Technology of Shield Tunnel[J].West China Exploration Engineering,2006:130-132.
[4]Blom C.B.M.Three-dimensional Structural Analyses of the Shield-Driven"Green Heart"Tunnel of the High-Speed Line South[J].Tunneling and Underground Space Technology,1999:217-224.
[5]ITA-Working Group Research,Guidelines for the Design of Shield Tunnel Lining.JapanTunneling Association,pp.1-26.
[6]孙钧,候学渊.上海地区圆形隧道设计的理论和实践[J].土木工程学报,1984,17(8):35-47.SUN Jun,HOU Xueyuan.Design Theory and Practice of Circular Tunnels in Shanghai Area[J].China Civil Engineering Journal,1984,17(8):35-47.
[7]刘建航,候学渊.盾构法隧道[M].北京:中国铁道出版社,1991.LIU Jianhang,HOU Xueyuan.Shield Tunnel[M].Beijing:China Railway Press,1991.
[8]魏道垛,杨熙章.上海软土的静止侧压力系K0的分布和变化规律的研究[J].水电自动化与大坝监测,1988,(3):36-43.WEI Daoduo,YANG Xizhang.Variation of KO-values of Shanghai Soft Soils[J].Hydropower Automation and Dam Monitoring,1988,(3):36-43.
[9]顾丽江.考虑拼装误差影响下的软土盾构隧道变形控制标准研究[D].上海:同济大学,2011.GU Lijiang.Influence of Installation Errors on Performance-based Evaluation Index of Shield Tunnel in Soft Clays[D].Shanghai:Tongji University,2011.
[10]刘建航.上海地铁1号线地下工程的技术概要[J].地下工程与隧道,1996,18(1):5-8.LIU Jianhang.Technical Overview of Underground Engineering of Shanghai Metro Line 1[J].Underground Engineering and Tunmels,1996,18(1):5-8.
[11]朱合华,陶履彬.盾构隧道衬砌结构受力分析的梁-弹簧系统模型[J].岩土力学,1998,19(2):26-32.ZHU Hehua,TAO Lvbin.Study on Two Beam-spring Models for the Numerical Analysis of Segments in Shield Tunnel[J].Rock and Soil Mechanics,1998,19(2):26-32.
[2]周文波.盾构法隧道施工技术及应用[M].北京:中国建筑出版社,2004.ZHOU Wenbo.Shield Tunneling Technology[M].Beijing:ChinaArchitecture&BuildingPress,2004.
[3]王勤.盾构法隧道管片设计与拼装技术[J].西部探矿工程,2006:130-132.WANG Qin.The Segment Construction Technology of Shield Tunnel[J].West China Exploration Engineering,2006:130-132.
[4]Blom C.B.M.Three-dimensional Structural Analyses of the Shield-Driven"Green Heart"Tunnel of the High-Speed Line South[J].Tunneling and Underground Space Technology,1999:217-224.
[5]ITA-Working Group Research,Guidelines for the Design of Shield Tunnel Lining.JapanTunneling Association,pp.1-26.
[6]孙钧,候学渊.上海地区圆形隧道设计的理论和实践[J].土木工程学报,1984,17(8):35-47.SUN Jun,HOU Xueyuan.Design Theory and Practice of Circular Tunnels in Shanghai Area[J].China Civil Engineering Journal,1984,17(8):35-47.
[7]刘建航,候学渊.盾构法隧道[M].北京:中国铁道出版社,1991.LIU Jianhang,HOU Xueyuan.Shield Tunnel[M].Beijing:China Railway Press,1991.
[8]魏道垛,杨熙章.上海软土的静止侧压力系K0的分布和变化规律的研究[J].水电自动化与大坝监测,1988,(3):36-43.WEI Daoduo,YANG Xizhang.Variation of KO-values of Shanghai Soft Soils[J].Hydropower Automation and Dam Monitoring,1988,(3):36-43.
[9]顾丽江.考虑拼装误差影响下的软土盾构隧道变形控制标准研究[D].上海:同济大学,2011.GU Lijiang.Influence of Installation Errors on Performance-based Evaluation Index of Shield Tunnel in Soft Clays[D].Shanghai:Tongji University,2011.
[10]刘建航.上海地铁1号线地下工程的技术概要[J].地下工程与隧道,1996,18(1):5-8.LIU Jianhang.Technical Overview of Underground Engineering of Shanghai Metro Line 1[J].Underground Engineering and Tunmels,1996,18(1):5-8.
[11]朱合华,陶履彬.盾构隧道衬砌结构受力分析的梁-弹簧系统模型[J].岩土力学,1998,19(2):26-32.ZHU Hehua,TAO Lvbin.Study on Two Beam-spring Models for the Numerical Analysis of Segments in Shield Tunnel[J].Rock and Soil Mechanics,1998,19(2):26-32.