Language selection

Government of Canada / Gouvernement du Canada

Search

The borehole jack: is it a useful arctic tool?

From National Research Council Canada

Download
  1. (PDF, 1.3 MiB)
AuthorSearch for: 1
Affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
Conference5th International Offshore Mechanics and Arctic Engineering Symposium, April 13, 1986, Tokyo, Japan
Subjectjacks; stresses; ice; ice - working temperatures; viscoelasticity; high temperature embrittlement; mechanical properties of ice; electrohydraulic pump; pressure; diametral displacement as a function of time; borehole jack test procedures - modifications
Abstract
As the working temperatures in ice are very close to its melting point, it behaves visco-elastically and experiences what is commonly known as high temperature embrittlement. Its mechanical properties are rate and temperature sensitive and analysis must include load and displacement history. Borehole jack tests can be improved by the use of an electrohydraulic pump in conjunction with simultaneous recording of pressure and diametral displacement as a function of time. These small but significant modifications in the test procedures permit analysis of the response of a borehole jack test system under operational winter conditions in the High Arctic in first-year and multi-year sea ice.
Publication date
In
  • Proceedings of the 5th International Offshore Mechanics and Arctic Engineering Symposium 4: 328–335.
LanguageEnglish
Peer reviewedYes
IdentifierIRC-P-1415
NRC numberNRCC 26638
NRC-IRC-781
NPARC number20338115
Export citationExport as RIS
Report a correctionReport a correction (opens in a new tab)
Record identifierfb694972-b256-45b3-b412-c7098d113afe
Record created2012-07-19
Record modified2020-06-06
Date modified: