eprintid: 1501129
rev_number: 24
eprint_status: archive
userid: 608
dir: disk0/01/50/11/29
datestamp: 2016-10-26 14:11:14
lastmod: 2020-10-05 21:01:18
status_changed: 2016-10-27 09:53:25
type: proceedings_section
metadata_visibility: show
creators_name: Scourfield, S
creators_name: Sammonds, P
creators_name: Lishman, B
creators_name: Marchenko, A
title: The effect of ice rubble on ice-ice sliding
ispublished: pub
divisions: UCL
divisions: A01
divisions: B04
divisions: C06
divisions: F57
abstract: Ice deformation processes in the Arctic can generate ice rubble. Many situations arise where
ice fragments of varying size separate sea ice floes. While the shear forces between sea ice
floes in direct contact with each other are controlled by ice-ice friction, what is not known is
how the slip of the floes is affected by the presence of rubble between the sliding surfaces.
We present the result of field experiments undertaken on sea ice in the Barents Sea. A doubledirect-shear
experiment was done on floating sea ice in the field, with the addition of rubble
ice between the sliding surfaces. This was achieved by pulling a floating ice block through a
cut channel of open water 3m long, where broken ice filled the gap between the block and the
channel sides. The displacement of the block and the force needed to move the block were
measured. The time that the block was held motionless to allow the rubble to consolidate was
recorded - this ranged from seconds to several hours. We found that the 'hold time' controls
the maximum force needed to move the block. The relation between hold time and force is
highly non-linear from which we deduce thermal consolidation is the controlling mechanism.
date: 2015-06-14
date_type: published
publisher: Port and Ocean Engineering under Arctic Conditions (POAC)
official_url: http://www.ntnu.edu/poac15
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 1137863
lyricists_name: Sammonds, Peter
lyricists_id: PRSAM22
actors_name: Sammonds, Peter
actors_id: PRSAM22
actors_role: owner
full_text_status: public
series: International Conference on Port and Ocean Engineering under Arctic Conditions
publication: Proceedings of the 23rd International Conference on Port and Ocean Engineering under Arctic Conditions
volume: 23
place_of_pub: Trondheim, Norway
event_title: 23rd International Conference on Port and Ocean Engineering under Arctic Conditions
event_location: Trondheim, Norway
event_dates: 14 June 2015 - 18 June 2015
institution: Port and Ocean Engineering under Arctic Conditions
book_title: Proceedings of the 23rd International Conference on Port and Ocean Engineering under Arctic Conditions
citation:        Scourfield, S;    Sammonds, P;    Lishman, B;    Marchenko, A;      (2015)    The effect of ice rubble on ice-ice sliding.                     In:  Proceedings of the 23rd International Conference on Port and Ocean Engineering under Arctic Conditions.    Port and Ocean Engineering under Arctic Conditions (POAC): Trondheim, Norway.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1501129/1/Scourfield%202015%20The%20effect%20of%20ice%20rubble%20on%20ice-ice%20sliding.pdf