马宏伟, 陈文化, 宗琦, et al. Transverse Responses of Underwater Convey Tunnel to Incident SV Waves[J]. 2016, 36(5): 766-772. DOI: 10.13409/j.cnki.jdpme.2016.05.012.
SV波引起的水下输水隧洞平面地震响应研究
摘要
采用波函数展开法
给出了SV波入射引起的水下圆断面输水隧洞平面地震响应问题的解析解
并着重讨论了SV波入射时入射波传播角和地表水深对隧洞结构动力响应的影响。结果表明
当入射SV波的传播角小于临界角时
水下输水隧洞衬砌的动力响应随入射SV波传播角的增大而增大
而当SV波入射角大于临界角时
衬砌动力响应则随入射SV波传播角的增大而减小;在SV波入射时
水下输水隧洞衬砌的动力响应峰值随地表水深的增大而略有减小
但地表水深的改变对衬砌动力响应的分布影响不大。
Abstract
By using the wave expansion method
we obtain the analytical solutions of underwater convey tunnel’s transverse responses to incident SV waves in this paper.The influence that the incident angle of SV waves and the depth of surface water exert over the seismic responses of underwater convey tunnel is emphatically discussed.The study shows that when the incident angle is less than the critical angle
the seismic responses of underwater convey tunnel increase with the increase of incident angle of SV waves and when the incident angle is greater than the critical angle
it is contrary.Moreover
the maxima of seismic responses of underwater convey tunnel are slightly decreased with the increase of water depth.