不均匀震陷下盾构法隧道非线性受力特性研究
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摘要
以考虑轴向力与弯矩共同作用的等价刚度评价法,分析了盾构法隧道在不均匀震陷作用下纵向的受力特性。通过与不考虑轴向力与弯矩共同作用的等价刚度法计算结果的对比,验证了等价刚度计算中考虑轴向力与弯矩共同作用的必要性和不考虑轴向力与弯矩共同作用等价刚度法的适用性,并就连接方式、震陷范围、震陷模式、地基刚度折减、螺栓非线性等要素对隧道纵向受力响应的影响进行分析,得出了一些有益于盾构法隧道抗震设计的结论,以期对今后实际工程的应用和相关规范的修订有所裨益。
Adopting equivalent rigidity method with considering the axial force and bending moment coactions, the longitudinal response of shield tunnel subjected to differential subsidence due to earthquake is analyzed,The ra- tionality and applicability of the analysis with or without considering such coactions are demonstrated.Such influence aspects as equivalent rigidity,reduced subgrade rigidity,domain and pattern of subsidence are discussed in detail, providing an academic foundation for cognizing the behaviors of shield tunnel subjected to differential subsidence due to earthquake and upgrading its seismic design.
Adopting equivalent rigidity method with considering the axial force and bending moment coactions, the longitudinal response of shield tunnel subjected to differential subsidence due to earthquake is analyzed,The ra- tionality and applicability of the analysis with or without considering such coactions are demonstrated.Such influence aspects as equivalent rigidity,reduced subgrade rigidity,domain and pattern of subsidence are discussed in detail, providing an academic foundation for cognizing the behaviors of shield tunnel subjected to differential subsidence due to earthquake and upgrading its seismic design.
引文
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[3]季倩倩，等．地下铁道震害与震后修复措施[J]．灾害学,2001,16(2):31-36.(JI Qianqian,YANG Linde. Seismic Damage and Restoration Measures of Subway [J].Journal of Catastrophology.(in Chinese))
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[13]#12
[14]蒋通，苏亮．地震作用下盾构法隧道的弹塑性受力分析[J]．岩土工程学报，1999，21(2)：200-204．(JIANG Tong,SU Liang.Elasto-plastic stress analy- sis of shield tunnels under earthquake actions [J]. Chinese Journal of Geotechnical Engineering,1999,21 (2):200-204.(in Chinese))
[15]#12
[16]卢慈荣，等．盾构法隧道纵向受力分析模型探讨[J]．现代隧道技术(增刊)，2004．11．(LU Cirong,et al.The Research on Longitudinal Analytical Model of Shield Tunnel [J].Modern Tunnelling Technology (Supplement),2004.11.(in Chinese))
[17]周键等．软粘土地基震陷分析[J]．工程抗震，2000，(1)：39-42．(ZHOU Jian et al.Prediction of Settle- ments of Soft Clay Caused by Earthquakes[J].Earth- quake Resistant Engineering,2000,(1):39-42.(in Chinese))
[18]杨石红等．软弱地基土层震陷简化计算方法研究[J]．世界地震工程，1997，13(2)：53-61．(YANG Shihong et al.Study of Simplified Method on Calculat- ing The Seismic Settlement of Foundation on Salt Soil [J].World Information on Earthquake Engineering, Vol13(2):53-61.(in Chinese))
[19]高田至郎．ライフライン地震工学[M]．共立出版，1992．
[2]川岛一彦．地下构造物の耐震设计[M]．日本：鹿岛出版会，1994．
[3]季倩倩，等．地下铁道震害与震后修复措施[J]．灾害学,2001,16(2):31-36.(JI Qianqian,YANG Linde. Seismic Damage and Restoration Measures of Subway [J].Journal of Catastrophology.(in Chinese))
[4]日本土木学会编，朱伟译．隧道标准规范(盾构篇)及解说[S]．北京：中国建筑工业出版社，2001．(Japa- nese Society of Civil Engineering.Standard Code for Tunnel (Shield Tunnelling).Translated by Zhu Wei [S].Beijing:China Architecture and Building Press, 2001.(in Chinese))
[5]Kuesel,T.R..Earthquake Design Criteria for Sub- ways.J.Struct.Div.,ASCE ST6,1969:1213-1231.
[6]JSCE.Earthquake Resistant Design for Civil Engineer- ing Structures in Japan.Japanese Society of Civil Engi- neers,Tokyo,1988.
[7]水工建筑物抗震设计规范(SL 203-97)[S]．1997．(Specifications for Seismic Design of Hydraulic Struc- tures(SL 203-97)[S].1997.(in Chinese))
[8]地铁设计规范(GB 50157—2003)[S]．2003．(Code for Design of Metro(GB 50157—2003)[S].2003.(in Chinese))
[9]胡聿贤．地震工程学[M]．北京：地震出版社，1988，9.(HU Yuxian.Earthquake engineering[M].Beijing: Earthquake Press,1988.(in Chinese))
[10]Youssef M.A.Hashash et al.Seismic design and anal- ysis of underground structures.Tunnelling and Under- ground Space Technology[J].2001,16:247-293.
[11]温竹茵，等．盾构法隧道的纵向受力分析[J]．特种结构，2002，(2)．(WEN Zhuyin,ZHOU Zhiyang.Me- chanical Analysis of Shield Tunnel in Longitudinal Di- rection [J].Special Structure,2002,(2).(in Chi- nese))
[12]蒋建群，等．盾构法隧道纵向地震响应特性研究[J]．中国铁道科学，2005，26(6)：84-88．(JIANG Jianqun,LU Cirong,SHEN Linchong.Research on Longitudinal Seismic Response of Shield Tunnel [J]. China Railway Science,2005,26 (6):84-88.(in Chinese))
[13]#12
[14]蒋通，苏亮．地震作用下盾构法隧道的弹塑性受力分析[J]．岩土工程学报，1999，21(2)：200-204．(JIANG Tong,SU Liang.Elasto-plastic stress analy- sis of shield tunnels under earthquake actions [J]. Chinese Journal of Geotechnical Engineering,1999,21 (2):200-204.(in Chinese))
[15]#12
[16]卢慈荣，等．盾构法隧道纵向受力分析模型探讨[J]．现代隧道技术(增刊)，2004．11．(LU Cirong,et al.The Research on Longitudinal Analytical Model of Shield Tunnel [J].Modern Tunnelling Technology (Supplement),2004.11.(in Chinese))
[17]周键等．软粘土地基震陷分析[J]．工程抗震，2000，(1)：39-42．(ZHOU Jian et al.Prediction of Settle- ments of Soft Clay Caused by Earthquakes[J].Earth- quake Resistant Engineering,2000,(1):39-42.(in Chinese))
[18]杨石红等．软弱地基土层震陷简化计算方法研究[J]．世界地震工程，1997，13(2)：53-61．(YANG Shihong et al.Study of Simplified Method on Calculat- ing The Seismic Settlement of Foundation on Salt Soil [J].World Information on Earthquake Engineering, Vol13(2):53-61.(in Chinese))
[19]高田至郎．ライフライン地震工学[M]．共立出版，1992．
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