摘要
为探究盾构隧道减震节点的性能及破坏模式,通过数值模拟和振动台试验,研究不同节点类型对隧道结构环向应力-应变、节点张开量、位移变形的影响。结果表明,设置减震节点后,管环环向、纵向受力及破坏形态较抗震隧道均有明显的改善,但断层处的环缝张开量、整体变形量有所增大。研究成果为特殊地质条件下改进盾构隧道动力行为、增强抗震性能提供了新途径。
In order to investigate the performance and failure mode of damping joints in shield tunnel,the effects of different joint types on the circumferential stress-strain,joint opening,displacement and deformation of tunnel structure were studied through numerical simulation and shaking table test.The results show that after setting up the damping joint,the circumferential and longitudinal stress and failure mode of the pipe are significantly improved compared to seismic tunnels,but the opening of the ring joint and the overall deformation at the fault are increased.The research results provide a new approach for improving the dynamic behavior and enhancing seismic performance of shield tunnels under special geological conditions.
作者
黄河淏
黄襄云
张俊平
谢柱坚
洪军亮
鲁家辉
HUANG Hehao;HUANG Xiangyun;ZHANG Junping;XIE Zhujian;HONG Junliang;LU Jiahui(Earthquake Engineering Research&Test Center,Guangzhou University,Guangzhou 510006,China;Department of Civil Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China)
出处
《振动与冲击》
北大核心
2025年第24期200-208,310,共10页
Journal of Vibration and Shock
基金
国家自然科学基金资助项目(51991393)。
关键词
减震节点
盾构隧道
振动台试验
节点性能分析
damping node
shield tunnel
shaking table testing
node performance analysis
