交通隧道抗震设计拟静力方法的适应性研究
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摘要
从"5.12汶川大地震"及世界范围的工程结构物震害情况看,在强震条件下,隧道工程震害依然较突出,合适的抗震设计方法是工程界共同面临的课题。当前进行抗震设计计算的拟静力方法主要有地震系数法与反应位移法,文章结合工程实例阐述了两者的基本原理。通过改变埋深、地震烈度和偏压等参数,对隧道受力情况进行了计算,对比分析两种方法的计算结果,就其适用性进行了探讨和研究。
It is evidenced by the "5.12 Wenchuan earthquake" and worldwide earthquakes that tunnels are still subject to severe damage in intense earthquakes,so the appropriate aseismic design method is a common and essential issue in tunnel engineering.Currently,the two major quasi-static calculation methods of aseismic design are earthquake coefficient method and seismic deformation method.The basic principles of both are described,and the internal forces of a shield tunnel in soft soil are calculated with various specifications of depth of the ground,earthquake intensity and other parameters.The results from the two methods are compared and analyzed to discuss the adaptability of these two methods.
It is evidenced by the "5.12 Wenchuan earthquake" and worldwide earthquakes that tunnels are still subject to severe damage in intense earthquakes,so the appropriate aseismic design method is a common and essential issue in tunnel engineering.Currently,the two major quasi-static calculation methods of aseismic design are earthquake coefficient method and seismic deformation method.The basic principles of both are described,and the internal forces of a shield tunnel in soft soil are calculated with various specifications of depth of the ground,earthquake intensity and other parameters.The results from the two methods are compared and analyzed to discuss the adaptability of these two methods.
引文
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[2]王文礼,苏灼谨,等.台湾集集大地震山岳隧道受损情形之探讨[J].现代隧道技术,2001,(2).
[3]JSCE.The 1995Hyogoken-Nanbu earthquake[J].Japan Society of Civil Engineers,1996,81(3):38-45.
[4]Li Q,et al.Analysis of seismic damage of engineeringstructures in Wenchuan earthquake[J].SouthwestJiaotong University Press,2008.
[5]JSCE.The 1999Ji-Ji earthquake[J].Japan Society ofCivil Engineers,1999,81(3):38-45.
[6]张栋梁,杨林德,谢永利,刘保健.盾构隧道抗震设计计算的解析解.岩石力学与工程学报,2008,(3):544-549.
[7]晏启祥,马婷婷,何川,汪东.深埋盾构隧道抗震分析的近似解析法[M].
[8]Geng Ping,He Chuan,Yan Qixiang,Ying Chubin.Seismic response analysis in transverse direction of theshield tunnel with seismic deformation method[C]//Proceedings of International Conference on EarthquakeEngineering.2009.
[9]Kazuhiko Kawashima.Seismic Analysis of Under-ground Structures[J].Journal of Disaster Reaserch,2006,(3):378-390.
[10]林志,朱合华,杨超,杨林德.盾构区间隧道衬砌结构的抗震计算[J].同济大学学报,2004,(5):607-611.
[11]刘晶波,李彬,谷音.地铁盾构隧道地震反应分析[J].清华大学学报,2005,(6):757-760.
[12]JSCE.The Tunnel Standard Specifications(For ShieldTunneling)[J].Japan Society of Civil Engineers,1996.
[12]铁路隧道设计规范[S].中国铁道出版社.
[13]朝倉俊弘,小島芳之,深沢成年.山岭隧道的抗震设计方法研究[C]//山岭隧道的震害机理及抗震性能研究会议.京都大学,2009.
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