Debris Flow: Mechanics, Prediction and Countermeasures by Tamotsu Takahashi
Debris Flow: Mechanics, Prediction and Countermeasures by Tamotsu Takahashi
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DOI：
10.1007/s00024-008-0342-8
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发表时间：
2008-06
影响因子：
2
通讯作者：
R. Viesca
中科院分区：
文献类型：
--
作者：
R. Viesca
对泥石流的看法主要是通过作者及其同事的调查，但并不完全排斥承认其他工作，作者经常将他的工作放在其他作者的背景下。在这一视角下，作者讨论了启动问题，建立了各种类型的发达流动模型，讨论了它们的特征和沉积，并以再现具体事件和讨论对策作为结论。有一个普遍的重点是寻找和提供定量模型，旨在捕捉关键的关系，主要是在与实验室规模的实验（例如，速度-深度剖面，或泥石流沉积深度下游的自然溃坝）。作者在本文中提供了大量的工作，已经在日本防灾研究所（DPRI）机构报告和日本出版物中以日语发表（本书最初于2004年以日语出版），以及更模糊地发表在Proceedings上的工作。正文本身写得很好，翻译得也很好：问题在开头提出，在随后的章节中跟进，定性描述伴随着定量分析。首先，作者根据颗粒浓度将泥石流从未成熟流分类为刚性运动，并在这些区域之间将行为分为粘性或惯性。在这些分类中，作者讨论和发展了单相和两相连续模型来解释发展的流动，并讨论了描述极限品种之间流动的方法。也有一个重要的讨论干颗粒流。退一步讲，作者讨论了泥石流的启动由地表流引起的下伏沉积物的故障，以及启动的滑坡，重点是由现场观测的启发，故障后的滑坡体所采取的流的方式。在沉积过程方面，重点放在泥石流扇上。
The perspective taken on debris flows is primarily through investigations of the author and his coworkers but is not entirely exclusive in acknowledging other work and the author often places his work in the context of other authors. Within this perspective, the author addresses initiation, develops models for various types of developed flows, discusses their features and their deposition, and concludes with the reproduction of specific events and a discussion of countermeasures. There is a general emphasis on finding and providing quantitative models aimed at capturing key relationships mostly in comparison with lab-scale experiments (eg, velocity-depth profiles, or debris flow deposition depth downstream of a natural dam failure). The author makes available in this text extensive work that has been published in Japanese in Disaster Prevention Research Institute (DPRI) agency reports and Japanese publications (the book itself was originally published in Japanese in 2004), as well as work more obscurely published in Proceedings. The text itself is well written and translated: Problems are posed in the beginning and followed up within subsequent chapters, and good qualitative descriptions accompany the quantitative analysis.At the outset, the author classifies debris flows from immature flow to rigid movement based on particle concentration, and between these regimes classifies the behavior as viscous or inertial. Within these classifications, the author discusses and develops oneand two-phase continuum models to explain the developed flow and discusses means for describing flows between limit-varieties. There is also a significant discussion regarding dry granular flows. Taking a step back, the author discusses the initiation of debris flows by surface flow inducing failure of underlying sediment, as well as initiation by landslides, with a focus on the style of flow taken by the landslides mass after failure inspired by field observation. A step forward, looking at depositional processes, emphasis is placed on the debris flow fan.