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首页> 外文会议>Boundaries of Rock Mechanics: Recent Advances and Challenges for the 21st Century >Seismic response of QINGDAO sub-sea tunnel considering transversely isotropic
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Seismic response of QINGDAO sub-sea tunnel considering transversely isotropic

机译：考虑横观各向同性的青岛海底隧道地震响应

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The seismic response of the sub-sea tunnel is important for its stability, especially with transversely isotropic. Based on QINGDAO sub-sea tunnel, the typical section and the Elcentro earthquake wave are adopted, and the viscoelastic artificial boundary is used to weaken the reflection effect. The analysis is performed with dynamic finite element method code ABAQUS, then all of the velocities, accelerations at survey points, the stress of lining and the displacement of vault can be gotten from the numerical simulation. It is easy to draw the conclusion that each time-history curve satisfies the earthquake wave form, the aseismatic weak location are vault, motherboard and side-wall where the compressive stress and tension stress are greater than the other places. Furthermore, the aseismatic capability of QINGDAO sub-sea tunnel satisfies the safety request according to the rules. The conclusions are useful for other similar sub-sea tunnel engineering.
机译：海底隧道的地震响应对其稳定性至关重要，尤其是横向各向同性的情况。在青岛海底隧道的基础上，采用典型断面和Elcentro地震波，并采用粘弹性人工边界来减弱反射效果。使用动态有限元方法代码ABAQUS进行分析，然后可以通过数值模拟获得所有速度，测量点处的加速度，衬砌的应力和拱顶的位移。容易得出这样的结论：每个时程曲线都满足地震波形，抗震性弱的位置是拱顶，母板和侧壁，其中压应力和拉应力大于其他位置。此外，青岛海底隧道的抗震能力符合规定的安全要求。结论对于其他类似的海底隧道工程是有用的。

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