数値移動床による格子型砂防ダム閉塞過程のシミュレーション NUMERICAL SIMULATION OF BLOCKING PROCESS OF GRID-TYPE DAM BY DEBRIS FLOW

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Author(s)

Abstract

A maximum diameter of sediment passing a grid is one of the most important condition of a design of grid-type dam. The model which can handle a collision and a contact between sediment particles is effective for a estimation of the blocking limit. Because a contact process of a grid and sediment shows remarkable three dimension characteristics, an introduction of 3D model is required. In this paper, a 3D distinct element method code is introduced to reproduce a blocking limit in previous experiments. A mechanism of a blocking is discussed from the viewpoint of a computational dynamics by estimating a spatial distribution of contact force between sediment particles.

Journal

  • PROCEEDINGS OF HYDRAULIC ENGINEERING

    PROCEEDINGS OF HYDRAULIC ENGINEERING (50), 739-744, 2006

    Japan Society of Civil Engineers

Codes

  • NII Article ID (NAID)
    130004043882
  • Text Lang
    UNK
  • ISSN
    0916-7374
  • Data Source
    J-STAGE 
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