期刊
REVIEW OF SCIENTIFIC INSTRUMENTS
卷 84, 期 11, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4831799
关键词
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资金
- Ministry of Economy, Trade and Industry (METI), Japan
In this study, a newly developed innovative triaxial testing system to investigate strength, deformation behavior, and/or permeability of gas hydrate bearing-sediments in deep sea is described. Transport of the pressure core from the storage chamber to the interior of the sealing sleeve of a triaxial cell without depressurization was achieved. An image processing technique was used to capture the motion and local deformation of a specimen in a transparent acrylic triaxial pressure cell and digital photographs were obtained at each strain level during the compression test. The material strength was successfully measured and the failure mode was evaluated under high confining and pore water pressures. (C) 2013 AIP Publishing LLC.
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