In situ vane system for seafloor strength investigations

Author

Silva, Armand J. ; Babb, John D. ; Lipkin, Joel ; Pietryka, Paul ; Butler, David

Author_Institution

Univ. of Rhode Island, Narragansett, RI, USA

Volume

10

Issue

1

fYear

1985

fDate

1/1/1985 12:00:00 AM

Firstpage

23

Lastpage

31

Abstract

The In Situ Vane (ISV) system has been developed to determine the strength profile within the upper 1.5 m of deep sea clays. The system is designed to operate in 6000-m water depth after one-year dormancy on the bottom and consists of four integrated packages; controller and data acquisition system, mechanical system, volume compensator, and power supply. This paper describes development of a prototype which was used under a pressure of 550 bars after a 30-day dormancy and of the full system which was successfully used in a deep water (5800 m) test. In the first full application of the system the ISV will be used to measure changes in sediment strength caused by high temperature ( $300\\deg$ C) as part of the U.S. Subseabed Disposal Program.

Keywords

Sea floor; Strain transducers; Bars; Blades; Control systems; Data acquisition; Mechanical systems; Packaging; Power supplies; Prototypes; Sea floor; System testing;

fLanguage

English

Journal_Title

Oceanic Engineering, IEEE Journal of

Publisher

ieee

ISSN

0364-9059

Type

jour

DOI

10.1109/JOE.1985.1137412

Filename

1137412