| 隧道软硬围岩交接面倾角对震时结构安全的影响 |
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| 作者姓名： | 麻建飞 郭艳军 余君宇 葛婧 崔光耀 |
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| 作者单位： | 北方工业大学, 北京 100144;四川电力设计咨询有限责任公司, 成都610041 |
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| 基金项目： | 国家自然科学基金项目(51408008);北京市青年拔尖人才培育计划项目(CIT&TCD201704013);北京市属高校基本科研业务费项目(110052971921/061);北京高等学校高水平人才交叉培养实培计划大学生科研训练计划深化项目(21XN217/016)。 |
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| 摘 要： | 本文研究了交接面倾角对于隧道软硬围岩交接带结构震时安全性的影响,建立了跨越不同交接面倾角隧道的三维模型,对比分析跨越不同交接面倾角的隧道边墙收敛、最大主应力、最大剪应力及内力的变化规律,提出了"减震层+结构加强"的抗减震措施,对提高强震区隧道软硬围岩交接带的震时结构安全性有着重要的意义。
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| 关 键 词： | 隧道工程 软硬围岩交接带 倾角 地震响应 结构安全 |
Influence of Dip Angle of Interface between Soft and Hard Surrounding Rock of Tunnel on Structural Safety During Earthquake |
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| Authors: | MA Jianfei GUO Yanjun YU Junyu GE Jing CUI Guangyao |
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| Institution: | (North China University of Technology,Beijing 100144,China;Sichuan Electric Power Design&Consulting Co.,Ltd.,Chengdu 610041,China) |
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| Abstract: | This paper studies the influence of dip angle of the interface between the soft and hard surrounding rock structure of tunnel on the seismic safety,establishes a three-dimensional model of the tunnel crossing different interface dip angles,analyzes the variation laws of side wall convergence,maximum principal stress,maximum shear stress,and internal force of tunnel crossing different interface dip angles by comparison,and proposes the anti-seismic measures of"damping layer+structural strengthening",which is of great significance to improve the seismic safety of the interface between the soft and hard surrounding rock in a tunnel in the strong earthquake area. |
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| Keywords: | tunnel engineering the interface between soft and hard surrounding rock dip angle seismic response structural safety |
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