圆形和直墙拱形地下隧道地震反应数值模拟对比分析
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摘要
考虑土与结构动力相互作用的影响,将地基土—地铁区间隧道结构体系视为平面应变问题,建立了土—地铁区间隧道非线性动力相互作用的有限元分析模型,对圆形和直墙拱形隧道的地震反应进行了数值模拟;分析了在相同的埋深和场地条件的情况下不同隧道结构形式在不同地震动作用下的应力、加速度和相对水平位移反应特性。结果表明:圆形隧道结构的应力和相对水平位移反应明显小于直墙拱形隧道。从抗震设计角度考虑,选择隧道形状时应优先采用圆形隧道。
By Using ABAQUS finite-element software and considering the influence of soil-structure interaction,the nonlinear dynamic soil-metro tunnel interaction is modeled.Seismic response of the circular and straight-wall-top-arch tunnel is numerical analyzed,the stresses,acceleration responses and relative horizontal displacements of the tunnel with the same field condition and buried depth are obtained.The computation results prove that stress and relative horizontal displacement response of circular tunnel are less than that of straight-wall-top-arch tunnel,hence circular-shaped tunnel should be considered as a priority.
By Using ABAQUS finite-element software and considering the influence of soil-structure interaction,the nonlinear dynamic soil-metro tunnel interaction is modeled.Seismic response of the circular and straight-wall-top-arch tunnel is numerical analyzed,the stresses,acceleration responses and relative horizontal displacements of the tunnel with the same field condition and buried depth are obtained.The computation results prove that stress and relative horizontal displacement response of circular tunnel are less than that of straight-wall-top-arch tunnel,hence circular-shaped tunnel should be considered as a priority.
引文
[1]刘晶波,吕彦东.结构—地基动力相互作用问题分析的一种直接方法[J].土木工程学报,1998,31(3):55-64Liu J B,Lv Y D.A direct method for analysis of dy-namic soil-structure interaction[J].China Civil Engi-neering Journal,1998,31(3):55-64
[2]廖红建,宋丽.地震荷载下地基—结构相互作用分析[J].岩土工程学报,2001,20(A01):1140-1142Liao H J,Song L.Interaction of soil-structure underseismic loading[J].Chinese Journal of GeotechnicalEngineering,2001,20(A01):1140-1142
[3]庄海洋,陈国兴,胡晓明.两层双柱岛式地铁车站结构水平向非线性地震反应分析[J].岩石力学与工程学报,2006,25(s1):3074-3079Zhuang HY,Chen G X,Hu X M.Analysis of nonlin-ear earthquake response of two-layer double-columnsubway station structure[J].Chinese Journal of RockMechanics and Engineering,2006,25(s1):3074-3079
[4]谷拴成,朱彬,杨鹏.地下结构地震反应非线性分析[J].地下空间与工程学报,2006,2(5):748-752Gu S C,Zhu B,Yang P.Nonlinear analysis of aeis-mic response of underground structure[J].ChineseJournal of Underground Space and Engineering,2006,2(5):748-752
[5]Chen G X,Liu X Z,Zhu D H.A study on dynamicshear modulus ratio and damping ratio of recently de-posited soils for southern region of Jiangsu province a-long Yangtze river,China[A].Proc.4th InternationalConference on Soft Soil Engineering[C].Vancouver,Canada,2006
[6]庄海洋,陈国兴.基于Davidenkov骨架曲线的动力粘弹性模型[J].岩土力学,2007,3:436-442Zhuang H Y,Chen G X.A dynamic visco-elasticmodel based on Davidenkov skeleton curve[J].Rockand Soil Mechanics,2007,3:436-442
[7]陈国兴,庄海洋.基于Davidenkov骨架曲线的土体动力本构关系及其参数研究[J].岩土工程学报,2005,27(8):860-864Chen G X,Zhuang H Y.Developed nonlinear dynam-ic constitutive relations of soils based on Davidenkovskeleton curve[J].Chinese Jounal of GeotechnicalEngineering,2005,27(8):860-864
[8]Lee J,Fenves G L.Plastic-damage model for cyclicloading of concrete structures[J].Journal of Engi-neering Mechanics,1998,(4):892-900
[9]陈国兴,杨伟林,严新育.南京河西地区软土场地地震动参数研究[J].南京工业大学学报,2002,24(1):35-40Chen G X,Yang W L,Yan X Y.Study of groundmotion parameters of soft soil site in Hexi area ofNanjing city[J].Journal of Nanjing University ofChemical Technology,2002,24(1):35-40
[10]庄海洋,陈国兴.双洞单轨地铁隧道区间非线性地震反应分析[J].地震工程与工程振动,2006,26(2):131-137Zhuang H Y,Chen G X.Analysis of nonlinear earth-quake response of metro double-tunnels[J].Earth-quake Engineering and Engineering Vibration,2006,26(2):131-137
[2]廖红建,宋丽.地震荷载下地基—结构相互作用分析[J].岩土工程学报,2001,20(A01):1140-1142Liao H J,Song L.Interaction of soil-structure underseismic loading[J].Chinese Journal of GeotechnicalEngineering,2001,20(A01):1140-1142
[3]庄海洋,陈国兴,胡晓明.两层双柱岛式地铁车站结构水平向非线性地震反应分析[J].岩石力学与工程学报,2006,25(s1):3074-3079Zhuang HY,Chen G X,Hu X M.Analysis of nonlin-ear earthquake response of two-layer double-columnsubway station structure[J].Chinese Journal of RockMechanics and Engineering,2006,25(s1):3074-3079
[4]谷拴成,朱彬,杨鹏.地下结构地震反应非线性分析[J].地下空间与工程学报,2006,2(5):748-752Gu S C,Zhu B,Yang P.Nonlinear analysis of aeis-mic response of underground structure[J].ChineseJournal of Underground Space and Engineering,2006,2(5):748-752
[5]Chen G X,Liu X Z,Zhu D H.A study on dynamicshear modulus ratio and damping ratio of recently de-posited soils for southern region of Jiangsu province a-long Yangtze river,China[A].Proc.4th InternationalConference on Soft Soil Engineering[C].Vancouver,Canada,2006
[6]庄海洋,陈国兴.基于Davidenkov骨架曲线的动力粘弹性模型[J].岩土力学,2007,3:436-442Zhuang H Y,Chen G X.A dynamic visco-elasticmodel based on Davidenkov skeleton curve[J].Rockand Soil Mechanics,2007,3:436-442
[7]陈国兴,庄海洋.基于Davidenkov骨架曲线的土体动力本构关系及其参数研究[J].岩土工程学报,2005,27(8):860-864Chen G X,Zhuang H Y.Developed nonlinear dynam-ic constitutive relations of soils based on Davidenkovskeleton curve[J].Chinese Jounal of GeotechnicalEngineering,2005,27(8):860-864
[8]Lee J,Fenves G L.Plastic-damage model for cyclicloading of concrete structures[J].Journal of Engi-neering Mechanics,1998,(4):892-900
[9]陈国兴,杨伟林,严新育.南京河西地区软土场地地震动参数研究[J].南京工业大学学报,2002,24(1):35-40Chen G X,Yang W L,Yan X Y.Study of groundmotion parameters of soft soil site in Hexi area ofNanjing city[J].Journal of Nanjing University ofChemical Technology,2002,24(1):35-40
[10]庄海洋,陈国兴.双洞单轨地铁隧道区间非线性地震反应分析[J].地震工程与工程振动,2006,26(2):131-137Zhuang H Y,Chen G X.Analysis of nonlinear earth-quake response of metro double-tunnels[J].Earth-quake Engineering and Engineering Vibration,2006,26(2):131-137
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