岩土力学2011，Vol.32Issue(3)：775-780,6.
P波作用下深埋隧道动应力集中问题参数敏感性分析
Parameters sensitivity analysis of dynamic stress concentration for deep buried tunnel under incident plane waves
摘要
Abstract
Based on wave function expansion method.an analytical solution for dynamic stress concentration of circular tunnel with double-layer-liner in infinite media under incident plane P waves is deduced According to the solution, parameters sensitivity analysis of dynamic stress concentration is canied out in combination with the tunnel #3of the first phase project along the Westem Route Project of South-to-North Water Transfer Projea.The calculation results show that the elasticity modulus of surrounding rock and inner concrete liner have a greater effect on dynamic stress concentration factor; and the effect of rock Poisson's ratio on the factor almost can be neglected.The layer between surrounding rock and inner concrete liner exhibited role in seismic isolation under the prerequisite conditions of its elasticity modulus is less than 1/20 of one of the surrounding rock; otherwise, the effect on seismic isolation is not obvious.关键词
平面P波/衍射/深埋隧道/动应力集中Key words
plane P waves/ diffraction/ deep buried tunnel/ dynamic stress concentration分类
建筑与水利引用本文复制引用
王长柏,李海波,周青春,夏祥..P波作用下深埋隧道动应力集中问题参数敏感性分析[J].岩土力学,2011,32(3):775-780,6.基金项目
国家自然科学基金资助项目(No.50809070,No.40872188) （No.50809070,No.40872188）
"十一五"科技支撑计划课题(No.2006BAB04A06,No.2008DAB29B00). （No.2006BAB04A06,No.2008DAB29B00）
