盾构隧道纵向变形性态研究分析
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摘要
随着城市地铁和市政工程建设的发展 ,由于软土隧道发生过量的不均匀纵向变形对隧道内力、变形及正常运营的影响日渐突出。本文以盾构法隧道为基础 ,结合工程实例 ,对软土盾构隧道纵向变形和结构性态进行讨论 ,介绍了盾构隧道纵向变形的影响因素 ,重点分析了土性不均匀与荷载变化两大主要因素对隧道纵向变形的影响 ,最后给出了具有一定指导意义的结论。
With the development of metro and public works, to the problem caused by the longitudinal deformation of soft ground tunnel, more importance has been attached. The influence of longitudinal deformation on the internal force and deformation of structure can't be ignored. Based on the shield tunnel data combined with those of the real projects, the longitudinal deformation and structure characteristic of tunnel are discussed, and the causes of longitudinal deformation of the tunnel are presented. The variation of soil behavior and the non uniform distribution of load along the shield tunnel are two major factors and their effect on the longitudinal deformation of tunnel is discussed. At last, some guiding conclusions are drawn.
With the development of metro and public works, to the problem caused by the longitudinal deformation of soft ground tunnel, more importance has been attached. The influence of longitudinal deformation on the internal force and deformation of structure can't be ignored. Based on the shield tunnel data combined with those of the real projects, the longitudinal deformation and structure characteristic of tunnel are discussed, and the causes of longitudinal deformation of the tunnel are presented. The variation of soil behavior and the non uniform distribution of load along the shield tunnel are two major factors and their effect on the longitudinal deformation of tunnel is discussed. At last, some guiding conclusions are drawn.
引文
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[19] 王胜平、阎高翔南京地铁一号线许府巷-南京站盾构区间地震液化分析[J].现代隧道技术,2000年4月,19-23.
[20] 童峰地铁区间隧道及接头结构抗震动力分析,博士论文,2000年10月
[2] K .Kimura,DangerousGapbetweenTheoryandPracticeinEarthPressureBalanceShieldTunnelinginJapan[J].ModernTunnelingScienceandTechnology,Vol2,LTA ,2001pp.613-618
[3] 陈基炜,詹龙喜上海市地铁一号线变形测量及规律分析[J].城市地质,2000年第2期,pp51-56.
[4] 项兆池,楼如岳,傅德明最新泥水盾构技术[R].上海:上海隧道施工技术研究所科技情报室,2001年
[5] B .Brajani,P .KRobertson,andN .R .Morgensten,SimplifiedDesignMethodsforPipelinesSubjecttoTransverseandLongitudinalSoilMovements[J].CanadianGeotechnicalJournal,Vol.32,No.2,Apr.1995,pp.309～323.
[6] R .J.MairandR .N .Taylor,Boredtunnelingintheurbanenvironment,ProceedingsofThefourteenthInternationalConferenceonSoilMechanicsandFoundationEngineering[M].1997,2353-2380.
[7] B .Simpson,J .H .Atkinson,TheInfluenceofAnisotropyonCalculationsGroundSettlementAboveTunnels[J].ModernTunnelingScjenceandTechnology,Volurna2,LTA ,2001,pp.511-514.
[8] OYEzzeldine,EstimationofthesurfacedisplacementfieldduetoconstructionofCarioMetroLine[J].TunneliingandUndergroundSpaceTechnolog1999;14(3);pp267-279.
[9] NPhienwej,TunnelingforBangkoksubwayproject[J].Tunnelsforpeople,pp.337～342
[10] 杉山正,阿野丰,大桥健司,野木雅昭ドツダランド.ライト.レ—ルウエイ———ルウエイ———ルシヤム延长线トンネルエ事[J].トンネルと地下,1999;30(7),27-35
[11] Zeisenstein,QEzzeldine,Theeffectoftunnellingtechnologyongroundcontrol[J].TunnellingandUndergroundSpaceTechnology,Vol.7(3),1992,pp.273-279
[12] C .Izumi,A .Norrish,Stability&SettlementdueBoredTunnelingforSingaporeLTA ,ModernTunnelingScienceandTechnology,Vol ume2,LTA .2001,pp.895-900.
[13] 章国忠、姜启元盾构法隧道钢制大变形衬砌环的设计[J]地下工程与隧道,1998,(3),pp.2-6
[14] M .Jao,M .C .Wang,Stabilityofstripfootingaboveconcrete-linedsoftgroundtunnels[J].TunnellingandUndergroundSpaceTech nology,Vol.13,No.4,1998,pp.427-434.
[15] 徐斌软土地铁隧道与邻近建筑相互影响的数值方法研究与应用[D].硕土论文,1998年8月.
[16] 徐伟深基坑与地铁隧道同期施工时的相互影响分析,硕士论文[D].1999年12月.
[17] 外滩观光隧道施工技术[A].1999—2000软土隧道及地下工程施工技术论文集[C].上海:上海隧道施工技术研究所科技情报室,16-23.
[18] 张璞列车振动荷载作用下上下近距离地铁区间交叠隧道的动力响应分析[D].博士论文,2001年8月.
[19] 王胜平、阎高翔南京地铁一号线许府巷-南京站盾构区间地震液化分析[J].现代隧道技术,2000年4月,19-23.
[20] 童峰地铁区间隧道及接头结构抗震动力分析,博士论文,2000年10月
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