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A Study on Vane Shear Strength Measurement of Deep-sea Sediment in the Northeast Equatorial Pacific  

지상범 (한국해양연구원 해저환경자원연구본부 심해저자원연구센터)
박정기 (한국해양연구원 해저환경자원연구본부 심해저자원연구센)
손승규 (한국해양연구원 해저환경자원연구본부 심해저자연구센)
이경용 (한국해양연구원 해저환경자원연구본부 심해저자원연구센)
이현복 (한국해양연구원 해저환경자원연구본부 심해저자원연구센터)
Publication Information
Economic and Environmental Geology / v.37, no.2, 2004 , pp. 235-244 More about this Journal
Abstract
The shear strength of deep-sea core sediments from the nofheast equatorial Pacific was measured in various conditions to ensure precision of results. The comparison items were 1) two different measuring systems (hand-held vane and motorized vane), 2) in different places of on-board immediately after collecting the core samples and on-land laboratories after storing these samples for three months in a cold room, 3) two different core samples from a multiple corer within a sampling station, and 4) four different measuring points (holes) from a core sample. In this experiment, the values of shear strength in deep-sea sediments show significant change with depth which increase toward the bottom of core. Also, the results of two cores recovered at the same station indicate that vertical variation of shear strength is mainly caused by the change of physical properties. They strongly support the fact that the difference of vue syrtem and/or experimental conditions are not major factor in the variation of geotechnical properties.
Keywords
vane shear strength; hand-held vane; motorized vane; deep-sea sediment;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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