Clarification of soil compaction mechanism by farm machinery in the Isahaya-bay reclamation field

2010 Fiscal Year Final Research Report

• Project/Area Number: 21780231
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Agricultural environmental engineering
• Research Institution: Kyushu University
• Principal Investigator: OKAYASU Takashi Kyushu University, 大学院・農学研究院, 准教授 (70346831)
• Co-Investigator(Renkei-kenkyūsha): MIYAZAKI Tomohiro 長崎県農業技術開発センター, 干拓営農研究部門, 主任研究員 (40503701) ; SUGIMOTO Satoshi 長崎大学, 工学部, 助教 (60404240)
• Project Period (FY): 2009 – 2010
• Keywords: 諫早湾干拓大規模環境保全型農地 / 大型農業機械 / 土壌踏圧 / 繰返し負荷 / 室内土質実験 / 上 / 下負荷面モデル / 弾塑性有限要素法 / 土壌踏圧シミュレーター

Research Abstract

To clarify the soil compaction phenomena by heavy agricultural vehicle passes on Isahaya reclamation land, soil compaction test by a tractor with a rotary tiller, soil tests such as the compaction test, oedometer test, triaxial compression test etc., and soil compaction simulations using the finite element analysis program based on the unconventional elastoplastic constitutive model and their evaluations have been investigated in this bstudy.

Research Products

• [Journal Article] 地盤材料の構成モデル最前線4.地盤材料の密度や繰返し載荷を考えたモデル化 (2011)
  • Author(s): 岡安崇史
  • Journal Title: 地盤工学会誌 印刷中
• [Journal Article] Soil Compaction Analysis on Structured Cohesive Soft Ground,Proc. (2010)
  • Author(s): Okayasu, T., Kamitsuji, N., Murakami, T., Miyazaki, T., Mitsuoka, M., Inoue, E., Fukami, K.
  • Journal Title: 9th Asia-Pacific Conf.ISTVS CD-ROM
• [Journal Article] Tractor Running Tests at Isahaya Bay Reclamation (2010)
  • Author(s): Miyazaki, T., Okayasu, T., Inoue, E.
  • Journal Title: Proc.5th Int.Symp.Mach.Mech.Agr.Biosys.Engng.(ISMAB) CD-ROM
• [Journal Article] 諫早湾干拓土壌におけるトラクタ走行で生じる踏圧現象 (2010)
  • Author(s): 宮嵜朋浩・岡安崇史・山田寧直・井上英二
  • Journal Title: 農作業研究 45(1) Pages: 29-35
• [Journal Article] Numerical Soil Compaction Analysis on Structured Soft Ground (2009)
  • Author(s): Okayasu, T., Miyazaki, T., Kamitsuji, N., Mitsuoka, M., Inoue, E., Fukami, K.
  • Journal Title: ISTRO2009, Izmir
• [Presentation] Soil Compaction Analysis on Structured Cohesive Soft Ground (2010)
  • Author(s): Okayasu, T., Kamitsuji, N., Murakami, T., Miyazaki, T., Mitsuoka, M., Inoue, E., Fukami, K.
  • Organizer: 9th Asia-Pacific Conference of the ISTVS
  • Year and Date: 20100900
• [Presentation] 構造・粘着力を有する土壌の踏圧現象に関する弾塑性有限要素解析 (2010)
  • Author(s): 岡安崇史, 上辻直哉, 村上貴志, 宮嵜朋浩, 深見公一郎, 光岡宗司, 井上英二
  • Organizer: 第69回農業機械学会年次大会
  • Year and Date: 20100900
• [Presentation] 構造・粘着力を有する土の弾塑性構成モデルの提案 (2010)
  • Author(s): 岡安崇史, 上辻直哉, 村上貴志, 宮嵜朋浩, 光岡宗司, 井上英二
  • Organizer: 第69回農業機械学会年次大会
  • Year and Date: 20100600
• [Presentation] Inoue,E.,Tractor Running Tests at Isahaya BayReclamation (2010)
  • Author(s): Miyazaki, T., Okayasu, T.
  • Organizer: ISMAB2010
  • Year and Date: 20100400
• [Presentation] 土壌踏圧現象の弾塑性有限要素解析に関する研究 (2009)
  • Author(s): 上辻直哉, 岡安崇史, 宮嵜朋浩, 井上英二, 光岡宗司, 上野正実, 深見公一郎
  • Organizer: 農業環境工学関連学会 2009年合同大会
  • Year and Date: 20090900
• [Presentation] 諫早湾干拓地農業における機械作業性の向上のための条件解明と耕うん特性の解析(第1報)干拓土壌におけるトラクタ走行およびロータリ耕うんによる土壌圧縮の解明 (2009)
  • Author(s): 宮嵜朋浩, 岡安崇史, 山田寧直, 川原洋子, 小林雅昭, 井上英二
  • Organizer: 第64回農業機械学会九州支部
  • Year and Date: 20090800
• [Presentation] Numerical Soil Compaction Analysis on Structured Soft Ground (2009)
  • Author(s): Okayasu, T., Miyazaki, T., Kamitsuji, N., Mitsuoka, M., Inoue, E., Fukami, K.
  • Organizer: ISTRO2009
  • Year and Date: 20090600