梁昌玉, 吴树仁, 王涛. 2016: 地震作用下节理岩体变形破裂机制研究进展及展望. 工程地质学报, 24(6): 1247-1254. DOI: 10.13544/j.cnki.jeg.2016.06.026
    引用本文: 梁昌玉, 吴树仁, 王涛. 2016: 地震作用下节理岩体变形破裂机制研究进展及展望. 工程地质学报, 24(6): 1247-1254. DOI: 10.13544/j.cnki.jeg.2016.06.026
    LIANG Changyu, WU Shuren, WANG Tao. 2016: RESEARCH PROGRESSES AND PROSPECTS IN THE DEFORMATION-FAILURE MECHANISMS OF JOINTED ROCKMASS UNDER EARTH-QUAKE ACTION. JOURNAL OF ENGINEERING GEOLOGY, 24(6): 1247-1254. DOI: 10.13544/j.cnki.jeg.2016.06.026
    Citation: LIANG Changyu, WU Shuren, WANG Tao. 2016: RESEARCH PROGRESSES AND PROSPECTS IN THE DEFORMATION-FAILURE MECHANISMS OF JOINTED ROCKMASS UNDER EARTH-QUAKE ACTION. JOURNAL OF ENGINEERING GEOLOGY, 24(6): 1247-1254. DOI: 10.13544/j.cnki.jeg.2016.06.026

    地震作用下节理岩体变形破裂机制研究进展及展望

    RESEARCH PROGRESSES AND PROSPECTS IN THE DEFORMATION-FAILURE MECHANISMS OF JOINTED ROCKMASS UNDER EARTH-QUAKE ACTION

    • 摘要: 西南山区节理岩体发育,处于强震易发区,强地震动和节理化岩体结构是汶川地震近场区地震地质灾害多发的两大主控因素,两者的相互耦合使得岷江两岸地震崩滑灾害成因复杂,崩滑机理研究难度增大。由于节理化岩体结构的复杂性以及早期对地震纵波关注不足,强震近场纵波作用下节理岩体变形破裂机制研究成果基本处于空白阶段。本文在系统归纳总结边坡地震动力变形破坏研究进展的基础上,分析了动荷载诱发节理岩体的变形破裂机制,探讨了解决目前研究中存在的核心问题的正确思路和有效途径,旨在对地震纵波作用下节理岩体宏观动力响应及其细观机制研究起到抛砖引玉的作用,并深化有关节理岩体地震响应、强震近场纵波引起节理岩质斜坡失稳模式等科学问题的认识,为下一步地震地质灾害研究指明方向。

       

      Abstract: Jointed rockmass is common in the southwestern mountain area, which is also a earthquake-prone area. Strong earthquake and jointed rock mass structure are the two main factors of geological disasters in the near field of Wenchuan earthquake. The coupling of the factors makes complex causes of landslides along Minjiang triggered by earthquake and difficult research process of landslides. Furthermore, due to the complexity of jointed rock mass and early lack of understanding of seismic P-wave, there is none research progresses made in deformation-failure mechanisms under strong P-wave. Research progresses in deformation-failure mechanisms of jointed rock mass induced by P-wave were summarized systematically in this paper. Then the correct thinking and effect way to solving the core problems is discussed, which is designed to play an important role in the research on the macro dynamic response and the micro mechanism of rock mass under P-wave. Also, the research on seismic response of jointed rock mass and the failure pattern of jointed rock slopes induced by near field P-wave would be deepened, indicating the direction for further study on the seismic geological hazards.

       

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