Study on Geotechnical Evaluation of Shallow Type Methane Hydrate-Bearing Grounds

2008 Fiscal Year Final Research Report

• Project/Area Number: 18360222
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Geotechnical engineering
• Research Institution: Kitami Institute of Technology
• Principal Investigator: YAMASHITA Satoshi Kitami Institute of Technology, 工学部, 教授 (00174673)
• Co-Investigator(Kenkyū-buntansha): SUZUKI Teruyuki 北見工業大学, 工学部, 教授 (30003205) ; SHOJI Hitoshi 北見工業大学, 工学部, 教授 (50201562) ; MINAMI Hirotsugu 北見工業大学, 工学部, 准教授 (40241426) ; HACHIKUBO Akihiro 北見工業大学, 工学部, 准教授 (50312450)
• Research Collaborator: KATAOKA Satsuki 北見工業大学大学院, 博士後期課程, 学生
• Project Period (FY): 2006 – 2008
• Keywords: メタンハイドレート / 堆積土 / 土質力学 / 物理試験 / 力学試験 / 応力解放

Research Abstract

メタンハイドレートが海底や湖底の表層部に存在している地盤の特性を明らかにするために,主としてロシア・バイカル湖で採取した堆積土試料に対して各種物理試験や力学試験を行い, ハイドレート有無による地盤特性の共通点や相違点を比較検討した。その結果, ハイドレート有無による土質特性に顕著な差は認められず既存の式でも十分評価できること, またガスの気化によって乱れた試料の強度からも原地盤強度が推定可能であることが示された。

Research Products

• [Journal Article] Natural gas hydrates with locally different cage occupancies and hydration numbers in Lake Baikal, Geochem (2009)
  • Author(s): Kida, K., Hachikubo, A., Sakagami, H., Minami, H., Krylov, A., Yamashita, S., Takahashi, N., Shoji, H., Khlystov, O., Poort, J. and Narita, H.
  • Journal Title: Geophys. Geosyst 10 Pages: Q05003
  • Peer Reviewed
• [Journal Article] オホーツク海のメタンハイドレートとプルーム (2009)
  • Author(s): 庄子仁, Young K. JIN, Anatoly OBZHIROV, Alexander SALOMATIN, Boris BARANOV, Vyacheslav GLADYSH, 八久保晶弘, 南尚嗣, 山下聡, 高橋信夫
  • Journal Title: 地学雑誌 118(1) Pages: 175-193
  • Peer Reviewed
• [Journal Article] 日本海東縁域における海底表層地盤の土質特性 (2009)
  • Author(s): 片岡沙都紀, 山下聡, 川口貴之, 鈴木輝之, 松本良
  • Journal Title: 土木学会北海道支部論文報告集 65(CD-ROM)
• [Journal Article] Geotechnical characteristics of the methane hydrate-bearing sediments in the Lake Baikal (2008)
  • Author(s): Kataoka, S., Yamashita, S., Minami, H., Nishio, S. and Grachev, M.
  • Journal Title: Proc. of the 3rd Inter. Conf. on Site Characterization 1 Pages: 609-614
  • Peer Reviewed
• [Journal Article] Soil properties of the gas hydrate-bearing sediments in Lake Baikal (2008)
  • Author(s): Kataoka, S., Yamashita, S., Suzuki, S. and Nishio, S.
  • Journal Title: Proc. of the 4th Inter. Sym. on Deformation Characteristics of Geomaterials 2 Pages: 565-572
  • Peer Reviewed
• [Journal Article] Crystallization of Authigenic Carbonates in Mud Volcanoes at Lake Baikal (2008)
  • Author(s): Krylov, A., Khlystov, O., Zemskaya, T., Minami, H., Hachikubo, A., Shoji, H., Kida, M., Pogodaeva, T., Naudts, L. and Poort, J.
  • Journal Title: Geochemistry International 46(10) Pages: 985-995
  • Peer Reviewed
• [Journal Article] バイカル湖表層堆積土を用いたメタンハイドレート賦存地盤の力学特性の評価 (2008)
  • Author(s): 片岡沙都紀, 山下聡, 西尾伸也, 八久保晶弘, 小西裕樹, 鈴木輝之
  • Journal Title: 地盤工学会北海道支部技術報告集 48 Pages: 127-136
  • URL: http://hdl.handle.net/10213/1541
• [Journal Article] First discovery and formation process of authigenic siderite from gas hydrate-bearing mud volcanoes in fresh water : Lake Baikal, Eastern Siberia (2007)
  • Author(s): Krylov, A., Khlystov, O., Zemskaya, T., Minami, H., Hachikubo, A., Nunokawa, Y., Kida, M., Shoji, H., Naudts, L., Poort, J. and Pogodaeva, T.
  • Journal Title: Geophysical Research Letters 35(doi : 10.1029/GL032917) Pages: L05405
  • Peer Reviewed
• [Journal Article] バイカル湖表層型メタンハイドレート賦存堆積土の地盤工学的性質 (2007)
  • Author(s): 片岡沙都紀, 山下聡, 南尚嗣, 西尾伸也, 安部透, 横山幸也, 兵動正幸, GRACHEV Mikhail
  • Journal Title: 地盤工学ジャーナル 2(2) Pages: 95-105
  • URL: http://hdl.handle.net/10213/1540
  • Peer Reviewed
• [Journal Article] オホーツク海のメタンハイドレート調査 (2007)
  • Author(s): 庄子仁, 南尚嗣, 八久保晶弘, 山下聡, 高橋信夫
  • Journal Title: 地盤工学会誌 55(10) Pages: 5-8
  • Peer Reviewed
• [Journal Article] Isotopic fractionation of methane and ethane hydrates between gas and hydrate phases (2007)
  • Author(s): Hachikubo, A., Kosaka, T., Kida, M., Krylov, A., Sakagami, H., Minami, H., Takahashi, N. and Shoji, H.
  • Journal Title: Geophysical Research Letters 34(doi : 10.1029/GL030557) Pages: L21502
  • Peer Reviewed
• [Journal Article] バイカル湖における表層型メタンハイドレート賦存地盤の工学的特性 (2007)
  • Author(s): 片岡沙都紀, 山下聡, 南尚嗣, 西尾伸也, 安部透, 横山幸也, 兵動正幸, Mikahail Grachev
  • Journal Title: 地盤工学会北海道支部技術報告集 47 Pages: 255-264
  • URL: http://hdl.handle.net/10213/1395
  • Peer Reviewed
• [Journal Article] Coexistence of structure I and II gas hydrates in Lake Baikal suggesting gas sources from microbial and thermogenic origin (2006)
  • Author(s): Kida, M., Khlystov O., Zemskaya, T., Takahashi, N., Minami, H., Sakagami, H., Krylov, A., Hachikubo, A., Yamashita, S., Shoji, H., Poort, J. and Naudts, L.
  • Journal Title: Geophysical Research Letters 33(doi : 10.1029/GL028296) Pages: L24603
  • URL: http://hdl.handle.net/10213/1443
  • Peer Reviewed
• [Presentation] Formation process of structure I and II gas hydrates discovered in Kukuy, Lake Baikal (2008)
  • Author(s): Hachikubo, A.
  • Organizer: Proc. of the 6th Inter. Conf. on Gas Hydrates
  • Place of Presentation: Vancouver, CANADA
  • Year and Date: 20080706-10
• [Presentation] バイカル湖の湖底表層地盤から採取した試料の力学特性 (2008)
  • Author(s): 片岡沙都紀
  • Organizer: 第43回地盤工学研究発表会
  • Place of Presentation: 広島
  • Year and Date: 2008-07-09
• [Presentation] Chemical/isotopic analyses of hydrate /pore water samples from gas hydrate-bearing sediment cores at Lake Baikal (2008)
  • Author(s): 南尚嗣
  • Organizer: 2005-2007, 日本地球惑星科学連合2008年大会
  • Place of Presentation: 千葉
  • Year and Date: 2008-05-28
• [Presentation] Isotopic composition of hydrate-bound and sediment gases in Lake Baikal (2007)
  • Author(s): Hachikubo, A.
  • Organizer: Inter.Conf.on Gas Hydrate Study
  • Place of Presentation: Listvyanka, RUSSIA
  • Year and Date: 20070903-08
• [Presentation] Geotechnical characteristics of gas hydrate-bearing sediments in Lake Baikal (2007)
  • Author(s): Kataoka, S.
  • Organizer: Inter.Conf.on Gas Hydrate Study
  • Place of Presentation: Listvyanka, RUSSIA
  • Year and Date: 20070903-08
• [Presentation] Chemical analysis of hydrate water and pore water samples from gas hydrate-bearing M7, VER 05-03 and VER 06-02 cores retrieved at Lake Baikal (2007)
  • Author(s): Minami, H.
  • Organizer: Inter.Conf.on Gas Hydrate Study
  • Place of Presentation: Listvyanka, RUSSIA
  • Year and Date: 20070903-08
• [Presentation] バイカル湖表層型メタンハイドレート賦存地盤の調査と堆積土の物理的性質 (2007)
  • Author(s): 片岡沙都紀
  • Organizer: 第42回地盤工学研究発表会
  • Place of Presentation: 名古屋
  • Year and Date: 2007-07-05