史安文, 程谦恭, 王玉峰, 等. 2024. 高速远程滑坡流态化地貌研究综述[J]. 工程地质学报, 32(3): 978-995. doi: 10.13544/j.cnki.jeg.2024-0082.
    引用本文: 史安文, 程谦恭, 王玉峰, 等. 2024. 高速远程滑坡流态化地貌研究综述[J]. 工程地质学报, 32(3): 978-995. doi: 10.13544/j.cnki.jeg.2024-0082.
    Shi Anwen, Cheng Qiangong, Wang Yufeng, et al. 2024. State of the art on fluidized geomorphology of rock avalanche[J]. Journal of Engineering Geology, 32(3): 978-995. doi: 10.13544/j.cnki.jeg.2024-0082.
    Citation: Shi Anwen, Cheng Qiangong, Wang Yufeng, et al. 2024. State of the art on fluidized geomorphology of rock avalanche[J]. Journal of Engineering Geology, 32(3): 978-995. doi: 10.13544/j.cnki.jeg.2024-0082.

    高速远程滑坡流态化地貌研究综述

    STATE OF THE ART ON FLUIDIZED GEOMORPHOLOGY OF ROCK AVALANCHE

    • 摘要: 高速远程滑坡流态化运动特征及其动力学机理研究一直是国际地质灾害领域长期关注的前沿热点科学问题。高速远程滑坡所形成的流态化堆积地貌是其高流动性远程运动的直观表现,蕴含了对滑坡运动学和动力学的指示,是进一步开展高速远程滑坡停积就位机理研究的重要前提和坚实依据。聚焦高速远程滑坡流态化堆积地貌,本文从滑坡平面展布形态与表面地貌特征两方面梳理了相关的国内外研究现状与发展动态,详细论述了高速远程滑坡典型微地貌单元的展布特征,阐明了它们的形成机制及其对滑坡停积就位的运动学、动力学的指示意义。在此基础上,基于对青藏高原典型高速远程滑坡的研究提出两类不同的平面撒开型高速远程滑坡的停积模型,指明下伏层在高速远程滑坡的运动演化过程中发挥着重要作用。最后,凝练出高速远程滑坡流态化地貌研究亟待解决的关键科学问题以及今后研究的3大方向:建立地质证据相依的地貌演化堆积模型,查明流态化地貌影响因素的作用机制,构建路径相依的形态递变停积就位模型。

       

      Abstract: Fluidized characteristics and emplacement mechanisms of rock avalanches are always prominent research hotspots and frontier issues in the international geological disaster field. The fluidized landforms generated during rock avalanche propagations are direct reflection of their high-speed fluidized behaviors, providing insights into their kinematics and dynamics and serving as crucial foundations for researching their emplacement behaviors. Focusing on the geomorphology of rock avalanches, this study presents a comprehensive review on the representative achievements in plan forms and geomorphic features of rock avalanches, and elaborates a series of typical geomorphic features on rock avalanche deposits and their formation mechanisms, as well as the important implications on the emplacement dynamics. Furthermore, the study proposes two emplacement model for unconfined rock avalanches and highlights the significant role of substrate on rock avalanche propagation. In conclusion, some key scientific issues are put forward and three potential solutions for future research are provided including: establishing the geological evidence-dependent evolving model of landforms, identifying the role of different factors on the formation of landforms, developing the path-dependent and progressive evolution emplacement model.

       

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