摘要
为研究地震作用下悬浮隧道所受动水压力规律,推导了平面P波从海底岩土斜入射到与海水的交界面时,作用在海底锚固悬浮隧道上的动水压力公式.基于位移势函数理论,讨论不同海底岩土参数与入射P波的不同频率和方向以及锚索的刚度和间距对作用在海底锚固悬浮隧道上的动水压力的影响.结果表明,海底岩土剪切模量、P波的频率和方向以及锚索的弹簧刚度和间距对悬浮隧道所受的动水压力有较大影响,海底岩土泊松比和密度的影响较小.
To study the hydrodynamic pressure rule on submerged floating tunnel under the earthquake, the formulae for determining the hydrodynamic pressure were deduced with the oblique incidence of plane P - wave. Based on displacement potential functions, effects of different submarine rock and soil parameters and different frequencies and directions of incident P - wave, as well as different spring constants and spaces of the tethers on the hydrodynamic pressure were discussed. It can be concluded that the submarine rock and soil shear modulus, the spring constant and the spacing of the tether, and the direction and frequency of incident P -wave have a significant effect on the hydrodynamic pressure, while the Poisson ratio and density of submarine rock and soil have little influence on it.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2008年第8期1292-1296,共5页
Journal of Harbin Institute of Technology
基金
国家自然科学基金资助项目(50578032)
国家教育部新世纪优秀人才计划资助项目(NCET-06-0270)
关键词
海底锚固悬浮隧道
动水压力
平面P波
seabed anchored submerged floating tunnel
hydrodynamic pressure
plane P-wave
