物質移動を考慮した不飽和土／水連成問題の数理モデルと有限要素解析手法

• 藤川 和彦

  (株) ワークスアプリケーションズ

• 飯塚 敦

  神戸大学都市安全研究センター

• 河井 克之

  神戸大学工学部建設学科

• ピパットパンサー ティラポン

  東京工業大学学術国際情報センター

書誌事項

タイトル別名

• The Mathematical Modeling of Unsaturated Soil-Water Coupled Problem Considering Mass Transfer and its FE formulation

抄録

This paper proposes a new mathematical formulation for the unsaturated soil-water coupled stress-deformation problem in which the advection and dispersion phenomena are taken into consideration. The conventional mathematical formulation for advection and dispersion phenomenon cannot take account of influence arising from the stress change and deformation of the ground. Therefore, if some construction works such as irrigation facilities and wells are planed as measures for some contamination damage, their influence on the advection and dispersion phenomena of the contaminant cannot be quantitatively examined by the conventional mathematical formulation. Then, in this paper, a new mathematical formulation for the advection and dispersion phenomena is rebuilt and a set of governing equations coupled with the soil deformation is presented. This new formulation is capable of introducing any constitutive model for unsaturated and saturated soil. In this paper, an elasto-plastic constitutive model for unsaturated and saturated soil proposed by Kawai et al. is employed together with the water retention model for the unsaturated soil considering the hysteresis response under wetting and drying processes. Finally, the performance of this new formulation for advection and dispersion phenomena is demonstrated through a numerical simulation of salt damage in an imaginary ground.

収録刊行物

• 応用力学論文集

  応用力学論文集 9 377-384, 2006

  公益社団法人 土木学会

キーワード

• 不飽和土/水連成問題
• 移流分散問題
• 塩害

詳細情報

• CRID: 1390001205205835648
• NII論文ID: 130004258414
• DOI: 10.2208/journalam.9.377
• ISSN: 1884832X
• ISSN: 13459139
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可