地铁区间小半径曲线隧道地震响应特性研究OA
Seismic response characteristics of small-radius curved tunnels in subway segment
以某市地铁2号线为工程背景,运用ABAQUS有限元软件,构建了考虑土-结构相互作用的小半径曲线隧道三维数值分析模型,综合分析了隧道埋深、转弯角度和曲率半径等因素对小半径曲线隧道地震响应特性的影响规律.研究结果表明,隧道埋深对小半径曲线隧道地震响应的影响最为显著.随着埋深的增加,隧道的位移响应和加速度响应均显著降低,特别是在浅埋隧道中,中下部区域的变形最为显著,因此在设计时需给予特别关注,相比之下,转弯角度和曲率半径对隧道各截面的位移响应影响较小.研究为小半径曲线隧道的抗震设计与评估提供了重要参考.
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.
杨福剑;赵浩楠;席仁强;冯晓九
常州大学 城市建设学院,江苏 常州 213164常州大学 城市建设学院,江苏 常州 213164常州大学 机械与轨道交通学院,江苏 常州 213164常州大学 城市建设学院,江苏 常州 213164
建筑与水利
曲线隧道地震响应数值分析抗震性能
curved tunnelsseismic responsesnumerical analysisseismic performance
《常州大学学报（自然科学版）》 2026 (2)
72-82,92,12
国家自然科学基金资助项目(52208460,52278480)常州市领军型创新人才引进培育资助项目(CQ20220100)常州大学人才引进资助项目(ZMF21020374).
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