常州大学学报（自然科学版）2026，Vol.38Issue(2)：72-82,92,12.DOI:10.3969/j.issn.2095-0411.2026.02.009
地铁区间小半径曲线隧道地震响应特性研究
Seismic response characteristics of small-radius curved tunnels in subway segment
摘要
Abstract
Based on a city Metro Line 2 project,this study utilized ABAQUS finite element software to develop a 3D numerical analysis model of small-radius curved tunnels,incorporating soil-structure interaction.The study comprehensively analyzed the effects of tunnel depth,turning angle,and cur-vature radius on the seismic response characteristics of small-radius curved tunnels.The results indi-cate that tunnel depth has the most significant impact on the seismic response of small-radius curved tunnels.As the depth increases,both displacement and acceleration responses of the tunnel decrease significantly.In particular,the mid-lower regions of shallow tunnels experience the most pronounced deformation,warranting special attention during design.In contrast,the effects of turning angle and curvature radius on the displacement response of various tunnel sections were found to be relative-ly minor.This research provides valuable insights for the seismic design and evaluation of small-radius curved tunnels.关键词
曲线隧道/地震响应/数值分析/抗震性能Key words
curved tunnels/seismic responses/numerical analysis/seismic performance分类
建筑与水利引用本文复制引用
杨福剑,赵浩楠,席仁强,冯晓九..地铁区间小半径曲线隧道地震响应特性研究[J].常州大学学报（自然科学版）,2026,38(2):72-82,92,12.基金项目
国家自然科学基金资助项目(52208460,52278480) （52208460,52278480）
常州市领军型创新人才引进培育资助项目(CQ20220100) （CQ20220100）
常州大学人才引进资助项目(ZMF21020374). （ZMF21020374）
