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工业建筑  2009 

盾构法隧道地面沉降槽宽度系数取值的研究

DOI: 10.13204/j.gyjz200912019, PP. 74-79

Keywords: 盾构隧道,地面沉降,Peck公式,沉降槽宽度系数

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Abstract:

盾构法隧道施工引起的地面沉降槽宽度系数i值与隧道半径R、隧道轴线埋深h及土质条件(土的内摩擦角φ)有关。对13例22个实测数据的统计结果表明i值与[R+htan〔45°-φ/2〕]值间呈线性关系,i/[R+htan〔45°-φ/2〕]值中共有20个数据在[0.45,0.50],只有2个数据(分别为0.43和0.51)在该范围外;i与h基本呈线性关系,但离散性较大,对于黏性土,k=i/h的范围为[0.37,0.66];i/R与h/(2R)间的关系采用指数函数拟合效果比常用的幂函数要好,但参数取值范围较大。基于分析结果,提出新的i值计算公式,该公式适用于黏性土,考虑了R、h、φ,同时参数取值范围较小,避免经验性参数取值范围较大可能带来的误差。

References

[1]  Peck R B.Deep Excavations and Tunneling in Soft Ground[C]//Stateof the Art Report.Proceeding of 7th International Conference on SoilMechanics and Foundation Engineering.Mexico City:1969:225-290.
[2]  韩煊.隧道施工引起地层位移及建筑物变形预测的实用方法研究[D].西安:西安理工大学,2006.
[3]  Knothe S.Observations of Surface Movements Under Influence ofMining and Their Theoretical Interpretation[C]//Proceedings ofEuropean Congress on Ground Movement.Leeds,UK:University ofLeeds,1957:210-218.
[4]  刘建航,候学渊.盾构法隧道[M].北京:中国铁道出版社,1991.
[5]  Clough G W,Schmidt B.Design and Performance of Excavations andTunnels in Soft Clay[G]//Brand E W,Brenner R P Soft ClayEngineering.New York:Elsevier Science Publishing Company,1981:569-634.
[6]  Attewell P B.Engineering Contract,Site Investigation and SurfaceMovements[G]∥Resendis D,Romo M P.Tunneling Works,Soft-Ground Tunneling Failure and Displacements.Rotterdam:Balkema,1981:5-12.
[7]  陈秋宗.台北市潜盾隧道施工对地盘沉陷之影响[D].新竹:国立交通大学,1988.
[8]  Loganathan N,Poulos H G.Analytical Prediction for Tunneling-Induced Ground Movement in Clays[J].Journal of Geotechnical andGeoenvironmental Engineering,1998,124(9):846-856.
[9]  Atkinson J H,Potts D M.Subsidence Above Shallow Tunnels in SoftGround[J].Journal of Geotechnical Engineering,ASCE,1977,103(4):307-325.
[10]  Lee C J,Wu B R,Chiou S Y.Soil Movements Around a Tunnel inSoft Soils[C]//Proceedings of the National Science Council,Part A,Physical Science and Engineering.Taiwan,China:1999,23(2):235-247.
[11]  Attewell P B,Farmer I W.Ground Deformations Resulting fromShield Tunnelling in London Clay[J].Canadian GeotechnicalJournal,1974,11(3):380-395.
[12]  Rankin W J.Ground Movement Resulting from Urban Tunnelling:Predictions and Effects.Engineering Geology of UndergroundMovements[C]//Proceedings of the 23rd Annual Conference on theEngineering Group of the Geological Society.Nottingham,UK:Nottingham University,1988:79-92.
[13]  Mair R J,Taylor R N,Bracegirdie A.Subsurface Settlement ProfilesAbove Tunnels in Clays[J].Geotechnique,1993,43(2):315-320.
[14]  O’Reilly M P,New B M.Settlements Above Tunnels in the UnitedKingdom Their Magnitude and Prediction[C]∥Jones M J.Proceedings of Tunnelling’82 Symposium.London:Institution ofMining and Metallurgy,1982:173-181.
[15]  璩继立,葛修润.软土地区盾构隧道施工沉降槽的特征分析[J].工业建筑,2005,35(1):42-46.
[16]  魏纲.盾构法隧道统一土体移动模型的建立[J].岩土工程学报,2007,29(4):554-559.
[17]  朱伟,陈仁俊.盾构隧道施工技术现状及展望(第2讲)——盾构隧道技术问题和施工管理[J].岩土工程界,2001,4(12):14-16,20.
[18]  张书丰.地铁盾构隧道施工期地表沉降监测研究[D].南京:河海大学,2004.
[19]  李园.盾构施工地层变形的三维数值模拟及试验研究[D].天津:天津大学,2004.
[20]  魏纲,魏新江,龚慈,等.软土中盾构法隧道引起的土体移动计算研究[J].岩土力学,2006,27(6):995-999.
[21]  Lee K M,Ji H W,Shen C K,et al.Ground Response to theConstruction of Shanghai Metro Tunnel-Line 2[J].Soils andFoundations,1999,39(3):113-134.
[22]  徐俊杰.土压平衡盾构施工引起的地表沉降分析[D].成都:西南交通大学,2004.
[23]  Deane A R,Bassett R H.The Heathrow Express Trial Tunnel[J].Geotechnical Engineering,1995,113(7):144-156.
[24]  Palmer J H,Belshaw D J.Deformations and Pore Pressures in theVicinity of a Precast,Segmented Concrete-Lined Tunnel in Clay[J].Canadian Geotechnical Journal,1980,17(2):174-184.
[25]  Yi X,Rowe R K,Lee K M.Observed and Calculated Pore Pressuresand Deformations Induced by an Earth Balance Shield[J].CanadianGeotechnical Journal,1993,30(3):476-490.
[26]  易宏伟.盾构施工对土体扰动与地层移动影响的研究[D].上海:同济大学,1999.
[27]  李曙光.EPB盾构法隧道施工引起的地表沉降分析与数值模拟[D].长沙:中南大学,2006.
[28]  初达夫.北京地铁十号线三元桥—亮马河站区间盾构旁穿建筑物地表沉降规律研究[D].北京:中国地质大学,2007.
[29]  衡朝阳,滕延京,陈希泉.地铁盾构隧道周边建筑物地基基础变形控制研究[J].地下空间与工程学报,2006,2(8):1336-1340.
[30]  刘纪峰,刘波,陶龙光.基于弹塑性分析的浅埋盾构隧道地表沉降控制[J].沈阳建筑大学学报:自然科学版,2009,25(1):28-33.
[31]  张飞进.盾构施工穿越既有线地表沉降规律与施工参数优化[D].北京:北京工业大学,2006.
[32]  郭玉海.盾构隧道穿越铁路沉降控制研究[J].市政技术,2004,22(增):247-251.
[33]  Cording E J,Hansmire W H.Displacement Around Soft GroundTunnels,General Report:Session IV,Tunnels in Soil[C]//Proceedings of the 5th Panamerican Congress on Soil Mechanics andFoundation Engineering.[s.l.]:1975:571-632.

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