Salt damage/Ground deformation Mechanism and its repair method using porous ceramic particles made from paper sludge

• Project/Area Number: 21360225
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Geotechnical engineering
• Research Institution: Kobe University
• Principal Investigator: IIZUKA Atsushi 神戸大学, 自然科学系先端融合研究環都市安全研究センター, 教授 (40184361)
• Co-Investigator(Kenkyū-buntansha): KAWAI Katsuyuki 神戸大学, 自然科学系先端融合研究環都市安全研究センター, 准教授 (30304132) ; PIPATPONGS Thirapon 東京工業大学, 学術国際情報センター, 准教授 (10401522) ; TACHIBANA Shinya 埼玉大学, 地圏科学研究センター, 助教 (90432567) ; TAKEYAMA Tomohide 東京工業大学, 理工学研究科, 助教 (00452011) ; KANAZAWA Shin-ichi 中央大学, 理工学部, 助教 (20580062)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000); Fiscal Year 2011: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2010: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000); Fiscal Year 2009: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
• Keywords: 塩害 / 沙漠化 / 地盤応答数理モデル / 有限要素シミュレータ / 多孔質セラミック材 / 地盤変状 / タイ東北部 / 地盤工学 / 塩害・沙漠化 / 水循環 / 環境技術 / シミュレーション / 汚泥土のリサイクル / 地圏・気圏水循環 / 多孔質セラミック / 地球環境問題 / 砂漠化

Research Abstract

It is well known that salt rock layer is widely deposited under the Eurasian basement. Underground water contains weakly salt where the salt rock layer is occasionally deposited near the ground surface. Such a typical example can be seen in the northeast area of Thailand. Agricultural productivity decreases due to the salt damage of that the salty ground water level gradually rises resulting in appearance of salt crystals on the ground surface associated with annual repeat of rainy and dry seasons. This research project is intended to develop a numerical computation technique to reveal the mechanism of salt damage which will lead desertification. On the other hand, paper sludge discharged from paper manufacture causes a serious environmental problem. Such sludge can be changed to porous stable ceramic materials by burning it at 1300 degrees. This research project also aims at utilizing such materials to protect and repair the salt damage.

Research Products

• [Journal Article] Theoretical evaluation of the mechanical behavior of unsaturated soils (2011)
  • Author(s): Honda, M., Ohno, S., Iizuka, A., Kawai, K. and Ohta, H
  • Journal Title: International Journal of Geotechnical and Geological Engineering Volume: Vol.29, No.2 Pages: 171-180
• [Journal Article] 飽和/不飽和地盤内における水溶性物質移動モデルの構築 (2011)
  • Author(s): 野村瞬, 河井克之, 角井駿祐, 橘伸也, 金澤伸一, 飯塚敦
  • Journal Title: 土木学会論文集 Volume: Vol.14 Pages: 231-240
  • NAID: 130004557163
• [Journal Article] 土/水/空気/溶解物質連成問題の定式化とその応用 (2011)
  • Author(s): 野村瞬, 河井克之, 金澤伸一, 橘伸也, 飯塚敦
  • Journal Title: 神戸大学都市安全研究センター研究報告 Volume: 第15号 Pages: 21-28
  • NAID: 120006634725
• [Journal Article] 飽和/不飽和地盤内における水溶性物質移動モデルの構築 (2011)
  • Author(s): 野村瞬, 河井克之, 角井駿祐, 橘伸也, 金澤伸一, 飯塚敦
  • Journal Title: 応用力学論文集(土木学会論文集A2) Volume: Vol.14 Pages: 231-240
  • NAID: 130004557163
  • Peer Reviewed
• [Journal Article] Arch action over an excavated pit in a stable scarp investigated by physical model tests (2011)
  • Author(s): M.H.Khosravi, T.Pipatpongsa, A.Takahashi, J.Takemura
  • Journal Title: Soils and Foundations Volume: Vol.51, No.4 Pages: 723-735
  • NAID: 130004552489
  • Peer Reviewed
• [Journal Article] 締固め方法の違いが締固め土構造物の品質に及ぼす影響 (2010)
  • Author(s): 柴田昌輝, 河井克之, 尾崎早希子, 金澤伸一, 橘伸也, 飯塚敦
  • Journal Title: 応用力学論文集 Volume: Vol.13 Pages: 363-370
• [Journal Article] 築堤シミュレーションにおける設定条件が盛土内応力分布に及ぼす影響 (2010)
  • Author(s): 田中麻穂, 河井克之, 金澤伸一, 橘伸也, 大野進太郎, 飯塚敦, 竹山智英
  • Journal Title: 応用力学論文集 Volume: Vol.13 Pages: 423-430
• [Journal Article] 締固め方法の違いが締固め土構造物の品質に及ぼす影響 (2010)
  • Author(s): 柴田昌輝, 河井克之, 尾崎早希子, 金澤伸一, 橘伸也, 飯塚敦
  • Journal Title: 応用力学論文集,土木学会 Volume: Vol.13 Pages: 363-370
  • Peer Reviewed
• [Journal Article] 築堤シミュレーションにおける設定条件が盛土内応力分布に及ぼす影響 (2010)
  • Author(s): 田中麻穂, 河井克之, 金澤伸一, 橘伸也, 大野進太郎, 飯塚敦, 竹山智英
  • Journal Title: 応用力学論文集,土木学会 Volume: Vol.13 Pages: 423-430
  • Peer Reviewed
• [Journal Article] Saline soil problems in the northeastern part of Thailand and development of a computing tool for inter-organization collaboration (2010)
  • Author(s): Pipatopongsa,T., Kawai,K.Iizuka, A.
  • Journal Title: The Proceedings of the 21st Annual Conference of the Japan Society for International Development「第21回国際開発学会全国大会報告論文集」,国際開発学会 Volume: 第21回国際開発学会全国大会報告論文集 Pages: 227-228
• [Journal Article] 耐塩害性地盤構造及び塩害地盤浄化手法の検討 (2009)
  • Author(s): 河井克之, 野村瞬, 大野進太郎, Thirapong Pipatpongsa, 橘伸也, 金澤伸一, 飯塚敦
  • Journal Title: 応用力学論文集,土木学会 Volume: Vol.12 Pages: 421-428
  • NAID: 40016868751
• [Journal Article] 土/水連成有限要素プログラムを用いた静的締固めシミュレーション (2009)
  • Author(s): 河井克之, 柴田昌輝, 金澤伸一, 橘伸也, 大野進太郎, 飯塚敦, 本田道識
  • Journal Title: 応用力学論文集,土木学会 Volume: Vol.12 Pages: 429-436
• [Journal Article] On the vertex singularity of the Sekiguchi-Ohta model, Theoretical and Applied Mechanics Japan (2009)
  • Author(s): Pipatpongsa, T., Takeyama, T., Ohta, H. and Iizuka, A
  • Journal Title: Science Council of Japan Volume: Vol.57 Pages: 89-94
• [Journal Article] 耐塩害性地盤構造及び塩害地盤浄化手法の検討 (2009)
  • Author(s): 河井克之, 野村瞬, 大野進太郎, Thirapong Pipatpongsa, 橘伸也, 金澤伸一, 飯塚敦
  • Journal Title: 応用力学論文集, 土木学会 Vol.12 Pages: 421-428
  • NAID: 40016868751
  • Peer Reviewed
• [Journal Article] 土/水連成有限要素プログラムを用いた静的締固めシミュレーション (2009)
  • Author(s): 河井克之, 柴田昌輝, 金澤伸一, 橘伸也, 大野進太郎, 飯塚敦, 本田道識
  • Journal Title: 応用力学論文集, 土木学会 Vol.12 Pages: 429-436
  • Peer Reviewed
• [Journal Article] HPMを用いた土/水連成有限要素解析における水頭の空間離散化 (2009)
  • Author(s): 平田昌史, 藤山哲雄, 竹山智英, 飯塚敦, 太田秀樹
  • Journal Title: 応用力学論文集, 土木学会 Vol.12 Pages: 187-194
  • NAID: 40016868727
  • Peer Reviewed
• [Presentation] The role of unsaturated geomechanics in desertification due to salt damage, Keynote Lecture (2012)
  • Author(s): Iizuka, A., Kawai, K., Nomura, S., Tachibana, S., Ohno, S. and Pipatopongsa, T
  • Organizer: Proc 5th Asia-Pacific Conf
• [Presentation] Mathematical model of soil/water/air coupled problem for unsaturated soils considering mass transfer within pore-water (2012)
  • Author(s): Nomura, S., Kawai, K., Iizuka, A., Tachibana, S. and Kanazawa, S
  • Organizer: Proc 5th Asia-Pacific Conf
• [Presentation] The role of unsaturated geomechanics in desertification due to salt damage (2012)
  • Author(s): Iizuka, A., Kawai, K., Nomura, S., Tachibana, S., Ohno, S., Pipatopongsa, T.
  • Organizer: Keynote Lecture, Proc.5th Asia-Pacific Conference on Unsaturated Soils (AP-UNSAT2011)
  • Place of Presentation: Pattya, Thailand
• [Presentation] Theoretical framework of geomechanics, initial and boundary problem and predictions (2010)
  • Author(s): Iizuka, A.
  • Organizer: Special Session on Bentonite at the fall meeting of AESJ and Workshop on Physics and Chemistry of Bentonite for Radioactive Waste Disposal
  • Place of Presentation: 北海道大学(北海道)(招待講演)
  • Year and Date: 2010-09-18
• [Presentation] Mechanical behaviors and water retention characteristics of micro-porous ceramic particles produced by burning sludge (2010)
  • Author(s): Kawazu, J., Kawai, K., Kanazawa, S. and Iizuka, A
  • Organizer: Proc 5th Int. Conf
• [Presentation] Study of stratification resistant to salt damage (2010)
  • Author(s): Nomura, S., Kawai, K., Kanazawa, S. and Iizuka, A
  • Organizer: Proc 5th Int. Conf
• [Presentation] Stress-strain and water retention characteristics of micro-porous ceramic particles made with burning sludge (2009)
  • Author(s): Kawai, K., Iizuka, A., Kanazawa, S., Fukuda, A., Tachibana, S. and Ohno, S
  • Organizer: Proc of the International Symposium on Prediction and Simulation Methods for Geohazard Mitigation
  • Place of Presentation: Kyoto
• [Presentation] Impacts of plant-induced uptake on the stability of the earth structure (2009)
  • Author(s): Kawai, K., Iizuka, A., Tachibana, S. and Ohno, S
  • Organizer: Proc 17th International Conference on Soil Mechanics and Geotechnical Engineering
  • Place of Presentation: Egypt
• [Presentation] A finite element simulator for mechanical behavior of unsaturated earth structures exposed to evaporation and moisturization (2009)
  • Author(s): Kanazawa. S., Kawai, K., Ohno, S., Tachibana, S., Pipatpongsa, T., Takeyama, T. and Iizuka, A
  • Organizer: 4th Asia-Pacific Conf
• [Presentation] Impacts of plant-induced uptake on the stability of the earth structure (2009)
  • Author(s): Kawai, K., Iizuka, A., Tachibana, S., Ohno, S.
  • Organizer: Proc. 17th International Conference on Soil Mechanics and Geotechnical Engineering(ICSMGE)
  • Place of Presentation: Alexandria, Egypt
• [Book] "Constitutive Modelling for Soft Cohesive Soils", Geotechnics and Earthquake Geotechnics towards Global Sustainability (2011)
  • Author(s): Ohta, H., Iizuka, A. and Ohno, S
  • Publisher: Springer
• [Remarks]
  • URL: http://www.research.kobe-u.ac.jp/rcuss-geo-env/top1.html
• [Remarks]
  • URL: http://www.research.kobe-u.ac.jp/rcuss-geo-env/top1.html