Geotechnical properties of the shallow type methane hydrate-bearing sediments in the Lake Baikal

• KATAOKA Satsuki

  Kitami Institute of Technology

• YAMASHITA Satoshi

  Kitami Institute of Technology

• MINAMI Hirotsugu

  Kitami Institute of Technology

• NISHIO Shin'ya

  Shimizu Corporation

• ABE Toru

  Shimizu Corporation

• YOKOYAMA Tatsuya

  Oyo Corporation

• HYODO Masayuki

  Yamaguchi University

• GRACHEV Mikhail

  Limnological Institute, SB RAS

Bibliographic Information

Other Title

• 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

Abstract

The site investigation of the shallow type methane hydrate-bearing ground was performed on the Lake Baikal, Russia, in 2005 and 2006, and the geotechnical properties of the bottom sediment were examined. In the investigation, sediments with methane hydrates were sampled, and several kinds of tests (cone penetration, vane shear, bender element, uniaxial compression tests) were performed on the board. At the same time, samples were also retrieved from the grounds without methane hydrates. Then, the soil strengths and physical properties for both samples were compared. As a result, it was found that the soil strengths of surface sediments with methane hydrates were lower than those without methane hydrates regardless of the depth. It would seem that this is because the effect of the disturbance by emission of gas and water and pressure release during the sampling.

Journal

• Japanese Geotechnical Journal

  Japanese Geotechnical Journal 2 (2), 95-105, 2007

  The Japanese Geotechnical Society

Keywords

• lake Baikal
• methane hydrate
• site investigation
• measurement
• sample disturbance

Details

• CRID: 1390282680234549888
• NII Article ID: 130004482750
• DOI: 10.3208/jgs.2.95
• ISSN: 18806341
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed