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山岭隧道是现代交通网中重要组成部分,同时也作为一种特殊的地下结构。对于建造在高烈度地震区的山岭隧道,其抗震分析的研究还存在着亟待解决的问题。简要介绍了山岭隧道地震破坏形式和震害机理,并针对我国目前山岭隧道采用地震系数法、反应位移法和动力时程分析法三种抗震计算方法进行归纳总结,详细介绍了三种方法的计算原理和特点以及各自的适用性。同时对山岭隧道减震措施和理论分析方法进行归纳总结,并给出了适合高烈度地震区山岭隧道的减震措施。在对当前山岭隧道研究成果评述的基础上探讨了目前仍存在的一些问题,包括不同抗震计算方法的合理性、减震措施的适用性、时程分析法中地震波的确定以及减震层刚度的选择等。这些成果将为隧道的抗震设计提供理论依据和参考,对改善我国高烈度地震区山岭隧道的抗震设计具有重要意义。
Mountain tunnel is an important part of modern transportation network, but also as a special underground structure. For the mountain tunnel built in a high-intensity earthquake area, the study of its anti-seismic analysis still has some urgent problems to be solved. This paper briefly introduces the earthquake damage form and mechanism of the mountain tunnel, and summarizes the three earthquake resistance calculation methods of the current mountain tunnel using seismic coefficient method, reaction displacement method and dynamic time history method. The three methods are described in detail Principle and characteristics as well as their respective applicability. At the same time, the measures and theoretical analysis methods of mountain tunnel tunnels are summed up, and the measures to reduce the vibration of mountain tunnels suitable for high intensity seismic area are given. Based on the review of the current mountain tunnel research results, some existing problems are discussed, including the rationality of different seismic calculation methods, the applicability of seismic reduction measures, the determination of seismic waves in the time history analysis method, and the stiffness of shock-absorbing layers Choice and so on. These results will provide theoretical basis and references for the seismic design of tunnels, which is of great significance to aseismic design of mountain tunnels in high-intensity earthquake areas in China.