节段式沉管隧道抗震关键技术研究
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摘要
首先分析了节段式沉管隧道地震响应受力特性,明确了结构动力响应的温度敏感性,指出管节及节段接头为抗震的薄弱部位及抗震关注重点;其次,在分析国内外沉管隧道抗震研究的基础上,分析了节段式沉管隧道抗震研究需要解决的关键技术,主要包括沉管隧道土与结构相互作用的动力计算方法、非一致地震激励下沉管隧道地震响应分析方法以及沉管隧道振动台试验模拟技术;最后总结了节段式沉管隧道的研究进展及主要成果。
Firstly dynamic characteristics of seismic response of the segmental immersed tunnel are analyzed.Temperature variations have significant impact on the dynamic characteristics of segmental immersed tunnel.Critical for the seismic safety of immersed tunnels is the magnitude of deformations developing in the elemental and segmental joints,which should be simulated correctly in the dynamic model and focused on as a result.Secondly based on the literature reviews of the present seismic research on immersed tunnels,the key technical problems of seismic research for segmental immersed tunnel are analyzed,which includes calculating method for dynamic interaction between structure and soils,analytical method for seismic response of super long immersed tunnel subjected to non-uniform seismic loading,and shaking table test technology of immersed tunnel subjected to non-uniform seismic loading.Especially for the shaking table test technology,only the shaking table of bridge structures subjected to non-uniform seismic loading is studied.So no ripe experience is used for the immersed tunnel shaking table.At last,the present study and main achievements for the seismic analysis of immersed tunnel are summarized.
Firstly dynamic characteristics of seismic response of the segmental immersed tunnel are analyzed.Temperature variations have significant impact on the dynamic characteristics of segmental immersed tunnel.Critical for the seismic safety of immersed tunnels is the magnitude of deformations developing in the elemental and segmental joints,which should be simulated correctly in the dynamic model and focused on as a result.Secondly based on the literature reviews of the present seismic research on immersed tunnels,the key technical problems of seismic research for segmental immersed tunnel are analyzed,which includes calculating method for dynamic interaction between structure and soils,analytical method for seismic response of super long immersed tunnel subjected to non-uniform seismic loading,and shaking table test technology of immersed tunnel subjected to non-uniform seismic loading.Especially for the shaking table test technology,only the shaking table of bridge structures subjected to non-uniform seismic loading is studied.So no ripe experience is used for the immersed tunnel shaking table.At last,the present study and main achievements for the seismic analysis of immersed tunnel are summarized.
引文
[1]Immersed tunnels-a better way to cross waterways[C]//International Tunnelling and Underground Space Association,1999.
[2]Loannis A,Nikos G,Vasileios D,et al.Nonlinear response of deep immersed tunnel to strong seismic shaking[J].Journal of Geotechnical and Geoenvironmental Engineering,2007.
[3]Jakob H L.Model accuracy in aseismic design of immersed tunnel[D].Aalborg:Aalborg University,2008.
[4]Oorouw R.Behaviour of segment joints in immersed tunnels under seismic loading[D].Delft:Delft University of Technology,2010.
[5]Zhenxin Li,Guoping Xu.Research on the Seismic Performance of the Super Longest Segmental Immersed Tunnel[C]//Proceedings of the World Tunnel Congress,2012.
[6]Guoping Xu,Zhenxin Li,Hongzhou Liu.Comparative Analysis on the Seismic Performance of the Segmental and Monolithic Super Longest Immersed Tunnel[C]//Proceedings of the World Tunnel Congress,2012.
[7]韩大建,周阿兴,黄炎生.珠江水下沉管隧道的抗震分析与设计(I)—时程响应法[J].华南理工大学学报:自然科学版,1999,27(11):115-121.
[8]O Klyomlya.Earthauqke-resistant design features of immersed tunnels in Japan[J].Tunnelling and Underground Space Technology,1995,10(4):463-475.
[9]杨林德,杨超,季倩倩,等.地铁车站的振动台试验与地震响应的计算方法[J].同济大学学报,2003,31(10):1135-1140.
[10]宫比宁,赵大鹏.地下结构与土动力相互作用试验研究[J].地下空间,2002,22(4):320-324.
[11]郭毅之,金先龙,丁峻宏,等.沉管隧道地震响应分析的并行计算[J].岩石力学与工程学报,2005,(15):23-27.
[12]WU Kuang-huai,ZHANG Xiao-ning.Design of dense gap-graded friction coursemixture[J].Journal of Southeast University,2006,(1):101-105.
[13]丁峻宏,金先龙,郭毅之.沉管隧道地震响应的三维非线性数值模拟方法及应用[J].振动与冲击,2005,24(5):18-22.
[2]Loannis A,Nikos G,Vasileios D,et al.Nonlinear response of deep immersed tunnel to strong seismic shaking[J].Journal of Geotechnical and Geoenvironmental Engineering,2007.
[3]Jakob H L.Model accuracy in aseismic design of immersed tunnel[D].Aalborg:Aalborg University,2008.
[4]Oorouw R.Behaviour of segment joints in immersed tunnels under seismic loading[D].Delft:Delft University of Technology,2010.
[5]Zhenxin Li,Guoping Xu.Research on the Seismic Performance of the Super Longest Segmental Immersed Tunnel[C]//Proceedings of the World Tunnel Congress,2012.
[6]Guoping Xu,Zhenxin Li,Hongzhou Liu.Comparative Analysis on the Seismic Performance of the Segmental and Monolithic Super Longest Immersed Tunnel[C]//Proceedings of the World Tunnel Congress,2012.
[7]韩大建,周阿兴,黄炎生.珠江水下沉管隧道的抗震分析与设计(I)—时程响应法[J].华南理工大学学报:自然科学版,1999,27(11):115-121.
[8]O Klyomlya.Earthauqke-resistant design features of immersed tunnels in Japan[J].Tunnelling and Underground Space Technology,1995,10(4):463-475.
[9]杨林德,杨超,季倩倩,等.地铁车站的振动台试验与地震响应的计算方法[J].同济大学学报,2003,31(10):1135-1140.
[10]宫比宁,赵大鹏.地下结构与土动力相互作用试验研究[J].地下空间,2002,22(4):320-324.
[11]郭毅之,金先龙,丁峻宏,等.沉管隧道地震响应分析的并行计算[J].岩石力学与工程学报,2005,(15):23-27.
[12]WU Kuang-huai,ZHANG Xiao-ning.Design of dense gap-graded friction coursemixture[J].Journal of Southeast University,2006,(1):101-105.
[13]丁峻宏,金先龙,郭毅之.沉管隧道地震响应的三维非线性数值模拟方法及应用[J].振动与冲击,2005,24(5):18-22.
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