地震工程学报2025，Vol.47Issue(3)：529-541,13.DOI:10.20000/j.1000-0844.20230901001
衬砌厚度对隧道侧穿桥桩体系地震响应的影响研究
Effect of lining thickness on the seismic response of tunnel side-crossing bridge pile system
摘要
Abstract
To investigate the influence of lining thickness on the tunnel side-crossing bridge pile system,this study takes an actual project in Dalian,Liaoning Province,as a case study.Then,using the combination of shaking table test and numerical simulation,this work investigates the influence of lining thickness on the seismic response of the tunnel side-crossing bridge pile sys-tem.The peak values of the structure's acceleration and internal forces(shear force,axial force,and bending moment),along with their change rate coefficients,were analyzed.The results show that the influence of lining thickness on the acceleration response of the ground surface is mainly in the range of approximately 70 m from the horizontal center.With the increase in lining thick-ness,the peak acceleration of the tunnel's upper section decreases,while that of the lower section increases,thus indicating an opposite acceleration response law.With the increase in the lining thickness,the peak internal force of the tunnel in the system rises,with maximum change rates of shear force and bending moment at 9.51％and 19.56％,respectively.At the same time,the peak shear force,axial force,and bending moment of the bridge pile decrease,with the maxi-mum change rate of bending moment being 22.46％.关键词
隧道侧穿桥桩体系/衬砌厚度/地震响应/数值模拟Key words
tunnel side-crossing bridge pile system/lining thickness/seismic response/numerical simulation分类
土木建筑引用本文复制引用
许洪春,张亚楠,徐红,白晓晓..衬砌厚度对隧道侧穿桥桩体系地震响应的影响研究[J].地震工程学报,2025,47(3):529-541,13.基金项目
河南省高校青年骨干教师培养计划(2021GGJS116) （2021GGJS116）
