考虑接头力学特性的盾构隧道地震响应分析
|
摘要
盾构隧道衬砌属装配式结构,衬砌环间接头对整环刚度的影响不容忽视。目前常用的接头计算模型普遍过于简单,不能准确模拟接头的工作状态。为此,本文提出了一种力学模型,将接头处衬垫和螺栓抽象成非线性弹簧,该模型可以准确模拟不同构造形式的接头。随后将该接头模型应用于整环衬砌结构的动力有限元分析中,采用ABAQUS有限元软件以天津地铁盾构隧道工程为背景,进行了隧道横断面的地震响应分析,研究了接头模型对管片内力的影响,进而验证了该接头模型在动力分析中的适用性。分析结果表明,这种方法可较精确地模拟接头对衬砌结构的影响,同时具备较高的计算效率。
Shield tunnel is a type of prefabricated structure,in which the influence of the segments' joint on the stiffness of entire shields ring should not be ignored.The calculation model of the joint normally used is so simple that it cannot simulate the behavior of joints accurately.Therefore,a model of joint,which takes into account the gaskets and bolts as nonlinear springs to simulate the different forms of joint precisely,is presented.The model is then applied to the dynamic finite element analysis of whole shields ring of tunnel structure.With the example of Tianjin subway,the finite element analysis software ABAQUS is adopted to analyze the transverse seismic responses of the shield tunnel.By comparing the internal forces of segment with or without joint model,the applicability of the joint model in the dynamic analysis is investigated.It shows that the proposed model can simulate the effect of joints with high computational efficiency and precision.
Shield tunnel is a type of prefabricated structure,in which the influence of the segments' joint on the stiffness of entire shields ring should not be ignored.The calculation model of the joint normally used is so simple that it cannot simulate the behavior of joints accurately.Therefore,a model of joint,which takes into account the gaskets and bolts as nonlinear springs to simulate the different forms of joint precisely,is presented.The model is then applied to the dynamic finite element analysis of whole shields ring of tunnel structure.With the example of Tianjin subway,the finite element analysis software ABAQUS is adopted to analyze the transverse seismic responses of the shield tunnel.By comparing the internal forces of segment with or without joint model,the applicability of the joint model in the dynamic analysis is investigated.It shows that the proposed model can simulate the effect of joints with high computational efficiency and precision.
引文
[1]Lida H,Hiroto T.Damage to Daikai subway station[J].Soils and Foundations,1996,36(Supp.1):283-300.
[2]Kiyomiya O.Earthquake-resistant design features of immersed tunnels in Japan[J].Tunnelling and Underground Space Technology,1995,10(4):453-475.
[3]Hashash Y,Hook J J.Schmidt B,et al.Seismic design and analysis of underground structures[J].Tunnelling and Underground Space Technolo-gy,2001,16(4):247-293.
[4]He Ch,Koizumi A.Study on seismic behavior and seismic design methods in transverse direction of shield tunnels[J].Structural Engineering andMechanics,2001,11(6):651-662.
[5]Kawashima K.Seismic design of underground structure[M].Tokyo:Kajima Press,1994:43-60.
[6]张鸿,毕继红,张伟.地铁隧道地震反应非线性分析[J].地震工程与工程振动,2004,24(6):146-153.ZHANG Hong,BI Ji-hong,ZHANG Wei.Nonlinear analysis of seismic response of metro tunnel[J].Journal of Earthquake Engineering and Engi-neering Vibration,2004,24(6):146-153.(in Chinese)
[7]庄海洋,陈国兴.软弱地基浅埋地铁区间隧洞的地震反应分析[J].岩石力学与工程学报,2005,24(14):2506-2512.ZHUANG Haiyang,CHEN Guoxing.Earthquake response of shallow subway tunnels in soft foundation[J].Chinese Journal of Rock Mechanic andEngineering,2005,24(14):2506-2512.(in Chinese)
[8]张凤祥,朱合华,傅德明,等.盾构隧道[M].北京:人民交通出版社,2004.ZHANG Fengxiang,ZHU Hehua,FU Deming,et al.Shield tunnelling method[M].Beijing:China Communication Press,2004.(in Chinese)
[9]胡如军.盾构隧道衬砌管片设计理论研究[D].南京:河海大学,2002.Hu Rujun.Study on design theory of shield tunnel segment[D].Nanjing:Hohai University,2002.(in Chinese)
[10]Murakami H,Koizumi A.Study on load bearing capacity and mechanics of shield segment ring(in Japanese)[M].Proceedings for the Japan So-ciety for Civil Engineers,1978,272(4):103-115.
[11]吴兰婷.盾构隧道管片接头力学行为的有限元分析[D].成都:西南交通大学,2005.WU Lanting.FEM analysis on mechanical behaviors of segment joints of shield tunnel[D].Chengdu:Southwest Jiaotong University,2005.(inChinese)
[12]张厚美,过迟,付德明.圆形隧道装配式衬砌接头刚度模型研究[J].岩土工程学报,2000,22(3):309-313.ZHANG Houmei,GUO Chi,FU Deming.A study on the stiffness model of circular tunnel prefabricated lining[J].Chinese Journal of Geotechni-cal Engineering,2000,22(3):309-313.(in Chinese)
[13]刘学山.盾构隧道管片横向接头刚度对内力影响的研究[J].现代隧道技术,2003,40(4):14-19.LIU Xueshan,A study on the effect of the stiffness of the end joints of shield tunnel segments to the internal force of lining[J].Modern Tunnel-ling Technology,2003,40(4):14-19.(in Chinese)
[14]胡进军,谢礼立.地震动幅值沿深度变化研究[J].地震学报,2005,27(1):68-78.HU Jinjun,Xie Lili.Variation of earthquake ground motion with depth[J].Acta Seismological Sinica,2005,27(1):68-78.(in Chinese)
[2]Kiyomiya O.Earthquake-resistant design features of immersed tunnels in Japan[J].Tunnelling and Underground Space Technology,1995,10(4):453-475.
[3]Hashash Y,Hook J J.Schmidt B,et al.Seismic design and analysis of underground structures[J].Tunnelling and Underground Space Technolo-gy,2001,16(4):247-293.
[4]He Ch,Koizumi A.Study on seismic behavior and seismic design methods in transverse direction of shield tunnels[J].Structural Engineering andMechanics,2001,11(6):651-662.
[5]Kawashima K.Seismic design of underground structure[M].Tokyo:Kajima Press,1994:43-60.
[6]张鸿,毕继红,张伟.地铁隧道地震反应非线性分析[J].地震工程与工程振动,2004,24(6):146-153.ZHANG Hong,BI Ji-hong,ZHANG Wei.Nonlinear analysis of seismic response of metro tunnel[J].Journal of Earthquake Engineering and Engi-neering Vibration,2004,24(6):146-153.(in Chinese)
[7]庄海洋,陈国兴.软弱地基浅埋地铁区间隧洞的地震反应分析[J].岩石力学与工程学报,2005,24(14):2506-2512.ZHUANG Haiyang,CHEN Guoxing.Earthquake response of shallow subway tunnels in soft foundation[J].Chinese Journal of Rock Mechanic andEngineering,2005,24(14):2506-2512.(in Chinese)
[8]张凤祥,朱合华,傅德明,等.盾构隧道[M].北京:人民交通出版社,2004.ZHANG Fengxiang,ZHU Hehua,FU Deming,et al.Shield tunnelling method[M].Beijing:China Communication Press,2004.(in Chinese)
[9]胡如军.盾构隧道衬砌管片设计理论研究[D].南京:河海大学,2002.Hu Rujun.Study on design theory of shield tunnel segment[D].Nanjing:Hohai University,2002.(in Chinese)
[10]Murakami H,Koizumi A.Study on load bearing capacity and mechanics of shield segment ring(in Japanese)[M].Proceedings for the Japan So-ciety for Civil Engineers,1978,272(4):103-115.
[11]吴兰婷.盾构隧道管片接头力学行为的有限元分析[D].成都:西南交通大学,2005.WU Lanting.FEM analysis on mechanical behaviors of segment joints of shield tunnel[D].Chengdu:Southwest Jiaotong University,2005.(inChinese)
[12]张厚美,过迟,付德明.圆形隧道装配式衬砌接头刚度模型研究[J].岩土工程学报,2000,22(3):309-313.ZHANG Houmei,GUO Chi,FU Deming.A study on the stiffness model of circular tunnel prefabricated lining[J].Chinese Journal of Geotechni-cal Engineering,2000,22(3):309-313.(in Chinese)
[13]刘学山.盾构隧道管片横向接头刚度对内力影响的研究[J].现代隧道技术,2003,40(4):14-19.LIU Xueshan,A study on the effect of the stiffness of the end joints of shield tunnel segments to the internal force of lining[J].Modern Tunnel-ling Technology,2003,40(4):14-19.(in Chinese)
[14]胡进军,谢礼立.地震动幅值沿深度变化研究[J].地震学报,2005,27(1):68-78.HU Jinjun,Xie Lili.Variation of earthquake ground motion with depth[J].Acta Seismological Sinica,2005,27(1):68-78.(in Chinese)
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心