土石流の構成則に関する研究

• 江頭, 進治

• 芦田, 和男

• 矢島, 啓

• 高濱, 淳一郎

書誌事項

タイトル別名

• CONSTITUTIVE EQUATIONS OF DEBRIS FLOW
• ドセキリュウ ノ コウセイソク ニ カンスル ケンキュウ

抄録

Critical reviews on the studies for grain flows or debris flows are made from aviewpoint of continuum mechanics, which are expected to be an indicator for futureresearches on debris flows.The dissipation function for the flow of solid particle and fluid mixture isdeduced by formulating the energy consumptions due to the three mechanisms; theparticle to particle displacements, the inelastic collisions of the particle to particleand the turbulence generation within the pore fluid. The shear stress, which is calleddissipative stress, is directly obtained from the dissipation function. The isotropicpressure, which depends on the pressure of pore water, static concentration of solidparticle and repulsive dynamic stress, is formulated. Formulas of velocity andparticle concentration distributions are obtained from applying these stress relationsto the conservation equation of linear momentum. The theoretical predictions arecompared with flume tests performed by employing mixtures of sand particles andwater as well as of glass beads and water.

収録刊行物

• 京都大学防災研究所年報. B

  京都大学防災研究所年報. B 32 (B-2), 487-501, 1989-04-01

  京都大学防災研究所

詳細情報

• CRID: 1050001335579398272
• NII論文ID: 10004543519
• NII論文ID: 120001178523
• NII書誌ID: AN00027784
• ISSN: 0386412X
• HANDLE: 2433/72202
• NDL書誌ID: 3650641
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3650641
• 本文言語コード: ja
• 資料種別: departmental bulletin paper
• データソース種別:
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  • NDL
  • CiNii Articles