单圆盾构隧道抗震计算的惯性力法
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摘要
将单圆盾构隧道衬砌结构在地震作用下的动力响应问题,简化为由作用于盾构隧道管片形心的等代地震惯性力与地层抗力组成的受力体系,并据此以计算结构在地震作用下的内力。结果表明,该方法能准确反映单圆盾构隧道在地震作用下的内力最大值,并且简单、实用。
The response of single round shield tunnel in soft soil under seismic wave is simplified as a stress system composed of the inertial force acting at the centroid of the shield tunnel and the stratum resisting force,and accordingly the internal forces and responses of the shield tunnel under seismic wave are calculated. The result indicates that this method can reflect accurately the maximum stresses of single round shield tunnel under seismic wave. It is a suitable simple numerical calculation method for engineering design.
The response of single round shield tunnel in soft soil under seismic wave is simplified as a stress system composed of the inertial force acting at the centroid of the shield tunnel and the stratum resisting force,and accordingly the internal forces and responses of the shield tunnel under seismic wave are calculated. The result indicates that this method can reflect accurately the maximum stresses of single round shield tunnel under seismic wave. It is a suitable simple numerical calculation method for engineering design.
引文
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[7]Huo,H.,Bobet,A.,Fernandez,G.,et al.Load Transfer Mechanisms between Underground Structure and Surrounding Ground:Evaluation of the Failure of the Daikai Station[J].JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING,2005,131:1522-1533.
[8]Nam,S.H.,Song,H.W.,Byun,K.J.,et al.Seismic analysis of underground reinforced concrete structures considering elasto-plastic interface element with thickness[J].Engineering Structures,2006,28:1122-1131.
[9]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,2005,24:2506-2512.
[10]Verruijt,A.Deformation of an elastic half plane with a circular tunnel[J].International Journal of Solids and Structures,1998,35:2795-2804
[11]Exadaktylos,G.E.,Liolios,P.A.,et al.A semi-analytical elastic stress displacement solution for notched circular openings in rocks[J].International Journal of Solids and Structures,2003,40:1165-1187.
[12]Liu,H.and Song,E.Working mechanism of cutoff walls in reducing uplift of large underground structures induced by soil liquefaction[J].Computers and Geotechnics,2006,33:209-221.
[2]Wang,J.N.Seismic Design of tunnels:A state-of-the-art Approach[M].Monograph7,Parsons Brinkerho Quade&Douglas,June1993.
[3]Penzien,J.and Wu,C.L.Stresses in linings of bored tunnels[J].Earthquake Engineering and Structural Dynamics,1998,27:283-300.
[4]张栋梁,杨林德,谢永利,等.盾构隧道抗震设计计算的解析解[J].岩石力学与工程学报.2008,27,543-549.
[5]黄先锋.地下结构的抗震计算-位移响应法[J].铁道建筑,1999,6:3-6.
[6]王国波.软土地铁车站结构三维地震响应计算理论与方法的研究[博士学位论文][D].上海:同济大学,1993.
[7]Huo,H.,Bobet,A.,Fernandez,G.,et al.Load Transfer Mechanisms between Underground Structure and Surrounding Ground:Evaluation of the Failure of the Daikai Station[J].JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING,2005,131:1522-1533.
[8]Nam,S.H.,Song,H.W.,Byun,K.J.,et al.Seismic analysis of underground reinforced concrete structures considering elasto-plastic interface element with thickness[J].Engineering Structures,2006,28:1122-1131.
[9]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,2005,24:2506-2512.
[10]Verruijt,A.Deformation of an elastic half plane with a circular tunnel[J].International Journal of Solids and Structures,1998,35:2795-2804
[11]Exadaktylos,G.E.,Liolios,P.A.,et al.A semi-analytical elastic stress displacement solution for notched circular openings in rocks[J].International Journal of Solids and Structures,2003,40:1165-1187.
[12]Liu,H.and Song,E.Working mechanism of cutoff walls in reducing uplift of large underground structures induced by soil liquefaction[J].Computers and Geotechnics,2006,33:209-221.
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