北京交通大学学报2012，Vol.36Issue(1)：36-40,5.
暗挖海底隧道地震动水压力响应分析
Analysis of effect of hydrodynamic pressure on undersea tunnels constructed by excavation method
摘要
Abstract
A mechanical model is presented for evaluating the tunnel lining-soil-water interaction considering the viscoelastic artificial boundary and fluid-solid coupling effect. Based on Newmark method,the seismic response behavior of tunnel lining and the influence mechanism of hydrodynamic pressure under different buried depth and earthquake excitation are investigated by using the finite element analysis software ANSYS. The results show that the dynamic water pressure plays an important role when the vertical seismic excitation component exists, so it can not be ignored. When the buried depth of tunnel exceeds a certain value, the change amplitude of the seismic response of tunnel lining is minor, meanwhile, the finite element calculation results can provide a reference for the anti-seismic design of undersea tunnel project.关键词
动水压力/流固耦合/海底隧道/有限元法/黏弹性人工边界Key words
hydrodynamic pressure/ fluid-solid interaction/ undersea tunnel/ finite element method/viscous-spring artificial boundary分类
交通工程引用本文复制引用
陈向红,张鸿儒..暗挖海底隧道地震动水压力响应分析[J].北京交通大学学报,2012,36(1):36-40,5.基金项目
国家"863"计划项目资助(2006AA11Z119) （2006AA11Z119）
