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Cone penetration testing (CPT) in Antarctic firn: an introduction to interpretation

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Abstract:

Commercial cone penetration testing (CPT) equipment was adapted to allow penetrative testing in hard polar firn to depths of 10 m. The apparatus is hydraulically driven, rate-controllable and able to penetrate firn with a resistance of 10 MPa. It can be mounted on many types of typical polar vehicles, requiring connection to only hydraulics and 12 V electricity. Data recorded include both cone tip resistance and sleeve friction, a parameter not previously examined through such testing. This paper describes the development and calibration of the equipment and examines factors including snow density, penetration rate and cone size and shape that are shown to affect CPT interpretation. CPT can be used efficiently in polar environments to potentially provide estimates of physical parameters in hard firn to substantial depth.

Keywords: GLACIOLOGICAL INSTRUMENTS AND METHODS; POLAR FIRN; SNOW; SNOW MECHANICS; SNOW PHYSICS

Document Type: Research Article

DOI: http://dx.doi.org/10.3189/2014JoG12J214

Publication date: February 1, 2014

More about this publication?
  • The Journal of Glaciology is published six times per year. It accepts submissions from any discipline related to the study of snow and ice. All articles are peer reviewed. The Journal is included in the ISI Science Citation Index.
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