摘要
利用数值模拟技术并结合实际问题,研究了强震区双连拱及小净距隧道的地震动力响应规律.主要模拟了徐店子隧道洞口段在地震动力作用下衬砌结构的位移、内力的变化规律,分析了衬砌结构各部位位移和内力沿纵向的变化规律,并对双连拱和小净距隧道的地震响应规律进行了总结,为同类隧道洞口段抗减震设计提供了参考依据.
The numerical simu ty earthquake on a double-arch lation technology was used to study the dynamic behavior of a high-intensiand neighborhood tunnel. The Xudianzi Tunnel is taken as an example. The change of displacement and internal forces of the lining structure are simulated at the portal and analysed along the vertical direction. The seismic dynamic responses of the double-arch and neighborhood tunnel are summarized at last,thus providing a basis for shock absorption in the design of similar tunnels.
出处
《甘肃科学学报》
2012年第3期30-35,共6页
Journal of Gansu Sciences
关键词
双连拱
小净距
地震动力响应
位移峰值
内力峰值
double-arch
neighborhood
seismic dynamic response
peak of displacement
peak of internal force
