Development of contaminant material mobility expression method in saturated/unsaturated ground

• Project/Area Number: 25889056
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Geotechnical engineering
• Research Institution: Nihon University
• Principal Investigator: NOMURA Shun 日本大学, 理工学部, 助手 (20705701)
• Project Period (FY): 2013-08-30 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 地盤工学 / 汚染物質 / 移流分散現象 / 密度流 / 移流分散 / 土壌汚染 / 地盤環境問題

Outline of Final Research Achievements

In recent years, soil contamination due to toxic water-disolved materials has become one of the most serious environmental problems. Study for mobility evaluation to pollutants in saturated / unsaturated ground has been proceeded. In the analysis area, ground is assumed as soil / solution / dissolved material / air mixture continuum material. Applying the mixture theory to the conventional continuum theory, the theoretical model which ground deformation, pore fluid (solution and air) movement, and dissolved solute transport are evaluated simultaneously has been developed. Additionally, the one dimensional column test device equipping with the pore fluid pressure meter and flow measuring instrument was constructed to confirm the solute movement in the various condition of the ground.

Research Products

• [Journal Article] 地盤内密度流の表現手法と適用性の検討 (2015)
  • Author(s): 野村瞬，前野賀彦
  • Journal Title: 土木学会論文集A2 Volume: 70 Pages: 735-742
  • NAID: 130004961377
  • Peer Reviewed
• [Journal Article] Salt damage and soil contamination caused by the East Japan Earthquake and Tsumani (2013)
  • Author(s): Sugiyama, Y., Nomura, S.,Iizuka, A.,Kawai, K., Tachibana, S., Kanazawa, S. and Takeyama
  • Journal Title: Theoretical and applied mechanics Japan Volume: 62 Pages: 141-147
  • Peer Reviewed
• [Presentation] 密度変化を有する間隙溶液の移動性評価手法と適用性の検討 (2015)
  • Author(s): 野村瞬，前野賀彦
  • Organizer: 第49回地盤工学研究発表会講演集
  • Place of Presentation: 北海道
  • Year and Date: 2015-09-01 – 2015-09-03
• [Presentation] Development and applicability of density flow model in 1-D & 2-D space (2014)
  • Author(s): S. Nomura, Y. Maeno
  • Organizer: 12th international conference on Geo-disaster reduction
  • Place of Presentation: California
  • Year and Date: 2014-09-05 – 2014-09-06
• [Presentation] Reduction of evaporation from the ground with mulching (2014)
  • Author(s): K. Kawai, S. Saeki, S. Nomura, Y. Sugiyama
  • Organizer: 12th international conference on Geo-disaster reduction
  • Place of Presentation: California
  • Year and Date: 2014-09-05 – 2014-09-06
• [Presentation] Derivation of mass transfer model for the unsaturated soil and its applications (2014)
  • Author(s): S. Nomura, Y. Sugiyama, K. Kawai, A. Iizuka
  • Organizer: 6th international conference unsaturated soils
  • Place of Presentation: Sydney
  • Year and Date: 2014-07-02 – 2014-07-04
• [Presentation] Factors influencing on the performance of the capillary barrier system (2014)
  • Author(s): Y. Sugiyama, S. Nomura, K. Kawai, M. Mimura
  • Organizer: 6th international conference unsaturated soils
  • Place of Presentation: Sydney
  • Year and Date: 2014-07-02 – 2014-07-04
• [Presentation] Factors influencing on the performance of the capillary barrier system (2014)
  • Author(s): Y. Sugiyama, S. Nomura, K. Kawai, M. Mimura
  • Organizer: 6th international conference unsaturated soils
  • Place of Presentation: 北九州
• [Presentation] 溶液密度の影響を考慮した地盤内物質移動現象の表現方法 (2014)
  • Author(s): 野村瞬，前野賀彦
  • Organizer: 第49回地盤工学研究発表会講演集
  • Place of Presentation: 北九州
• [Presentation] タイ東北部における塩害抑制手法の検討 (2014)
  • Author(s): 田中琢，杉山友理，野村瞬，飯塚敦，河井克之
  • Organizer: 第49回地盤工学研究発表会講演集
  • Place of Presentation: 北九州