落石の三次元数値シミュレーションに関する研究―数値解析の方法と直線型斜面へ適用した場合―

DOI Web Site 被引用文献5件 参考文献24件

書誌事項

タイトル別名
  • Study on the 3-dimensional Simulation of Rock Fall along a Slope-Method of Numerical Calculation and an Application to a Simple Slope-
  • ラクセキ ノ 3ジゲン スウチ シミュレーション ニ カンスル ケンキュウ スウチ カイセキ ノ ホウホウ ト チョクセンガタ シャメン エ テキヨウ シタ バアイ
  • Method of Numerical Calculation and an Application to a Simple Slope
  • 数値解析の方法と直線型斜面へ適用した場合

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抄録

For the evaluation of strength and construction area for rock fall protection wall and fence, data related with rock fall characteristics such as falling velocity, rolling angular velocity, falling trajectory, jumping height, horizontal spread. and impact force are necessary. Particularly, jumping height and horizontal spread of rock fall are necessary for the decision of construction height and horizontal width of protection wall and fence. Practical rock fall test is difficult to be carried out because of surrounding conditions, although the practical test is desirable along the relevant slopes. For this reason, 2-dimensional numerical simulation on rock fall has been used for the evaluation of rock fall behaviors. But, 3-dimensional rock fall trajectories could not be obtained by the two dimensional analysis. Recently, authors have developed three dimensional rock fall simulation program and have confirmed that reasonable falling velocity, rolling angular velocity, penetration depth, jumping height, traveling distance and others could be calculated compared with observed data. It was found that falling behaviors of stick shape block were different not a little from those of massive and plate shape blocks. Authors have considered that this 3-dimensional rock fall simulation program could be used practically.

収録刊行物

  • 応用地質

    応用地質 44 (1), 25-35, 2003

    一般社団法人 日本応用地質学会

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