基于ABAQUS的地铁车站施工过程沉降分析
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- 英文论文题名：ABAQUS-Based Analysis of Settlement Induced by Tunnel Construction
- 论文作者：杨洪 ; 赵文
- 英文论文作者：YANG Hong ; ZHAO Wen ; School of Resources & Civil Engineering ; Northeastern University
- 年：2016
- 作者机构：东北大学资源与土木工程学院;
- 论文关键词：隧道工程 ; 中洞法 ; 有限元方法 ; 弹塑性 ; 沉降
- 英文论文关键词：Tunnel engineering ; Center drift method ; Finite element method ; Elastic-plastic ; Settlement
- 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：U231.3
- 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：7
- 文件大小：2664k
- 原文格式：O
- 会议级别：全国
摘要
为研究地铁隧道施工中的土体沉降规律,本文以大连地铁一号线车站为例,采用ABAQUS有限元软件建立了开挖过程的计算模型,选择箱涵位置作为最不利断面对中洞法施工过程进行了弹塑性二维平面应变数值模拟。地表与洞顶沉降的监测值与计算值的对比表明,模型可以比较准确的反映中洞法施工过程中的土体沉降。并且进一步计算给出了施工过程中沉降的分布变化云图,同时根据地表沉降槽的变化指出了关键施工工序。为中洞法施工过程和采用有限元方法进行类似计算提供了有益的借鉴。
To study the settlement laws in subway tunnel construction,a finite element model of the excavation process was established using ABAQUS for station of the Dalian subway line one as an example.In this model,the location of box culvert was selected as the most unfavorable section for the elastic-plastic 2D plane strain numerical simulation of center drift method.Comparison of monitoring values and calculated values for surface and roof settlement showed that the model can reflect the settlement of soil during construction.Further more,cloud images of settlement distribution changes were plotted through all the construction processes,key steps of construction were found according to changes of settlement tanks at the surface as well.These provided a useful reference for construction with center drift method or a similar calculation using finite element method.
To study the settlement laws in subway tunnel construction,a finite element model of the excavation process was established using ABAQUS for station of the Dalian subway line one as an example.In this model,the location of box culvert was selected as the most unfavorable section for the elastic-plastic 2D plane strain numerical simulation of center drift method.Comparison of monitoring values and calculated values for surface and roof settlement showed that the model can reflect the settlement of soil during construction.Further more,cloud images of settlement distribution changes were plotted through all the construction processes,key steps of construction were found according to changes of settlement tanks at the surface as well.These provided a useful reference for construction with center drift method or a similar calculation using finite element method.
引文
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[4]Suchatvee Suwansawat,Herbert H.Einstein.Describing settlement troughs over twin tunnels using a superposition technique[J].Journal of Geotechnical and Geo-environmental Engineering,2007,133(4):445-468
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[6]Matsuoka H,Nakai T.Stress-deformation and strength characteristics of soil under three principal stresses[C]//Pro.Japan Soc.Civil Engrs,1974,232:59-70.
[7]Lade P V.Failure Criterion for Frictional Materials.Mechanics of engineering Materials[M].Desai C S,Gallangher R H,eds.John Wiley&Sons Ltd,1984:385-402.
[8]Hoek E,Brown E T.Underground excavations in rock[M].London:Spon Press,1990.
[9]ZHANG X J,CHEN W F.Stabilitu analysis of slopes with general nonlinear failure criterion[J].International Journal for Numerical and Analytical Methods in Geomechanics,1987,11(1):33-50.
[10]杨小礼,王作伟.非线性破坏准则下浅埋隧道围岩压力的极限分析[J].中南大学学报(自然科学版),2010,41(1):299-302.YANG Xiaoli,WANG Zuowei.Limit Analysis of Earth Pressure on Shallow Tunnel Using Nonlinear Failure Criterion[J].Journal of Central South University(Science and Technology),2010,41(1):299-302.
[2]Ghaboussi J,Hansmire W H,Parker H W.Finite element simulation of tunneling over subways[J].Journal of Geotechnical Engineering,1983,109(3):318-334.
[3]李桂花.盾构法施工引起的地面沉陷的估算方法[J].同济大学学报(自然科学版),1986,14(2):253-261.LI Guihua.Estimation Method for Ground Subsidence Induced by Shield Construction[J].Journal of Tongji University(Natural Science Edition),1986,14(2):253-261.
[4]Suchatvee Suwansawat,Herbert H.Einstein.Describing settlement troughs over twin tunnels using a superposition technique[J].Journal of Geotechnical and Geo-environmental Engineering,2007,133(4):445-468
[5]王梦恕.地下工程浅埋暗挖技术通论[M].合肥:安徽教育出版社,2004.WANG Mengshu.The General Theory for Shallow-Buried Excavation Technology of Underground Engineering[M].Hefei:Anhui Education Press,2004.
[6]Matsuoka H,Nakai T.Stress-deformation and strength characteristics of soil under three principal stresses[C]//Pro.Japan Soc.Civil Engrs,1974,232:59-70.
[7]Lade P V.Failure Criterion for Frictional Materials.Mechanics of engineering Materials[M].Desai C S,Gallangher R H,eds.John Wiley&Sons Ltd,1984:385-402.
[8]Hoek E,Brown E T.Underground excavations in rock[M].London:Spon Press,1990.
[9]ZHANG X J,CHEN W F.Stabilitu analysis of slopes with general nonlinear failure criterion[J].International Journal for Numerical and Analytical Methods in Geomechanics,1987,11(1):33-50.
[10]杨小礼,王作伟.非线性破坏准则下浅埋隧道围岩压力的极限分析[J].中南大学学报(自然科学版),2010,41(1):299-302.YANG Xiaoli,WANG Zuowei.Limit Analysis of Earth Pressure on Shallow Tunnel Using Nonlinear Failure Criterion[J].Journal of Central South University(Science and Technology),2010,41(1):299-302.