Shear strength of ice-filled rock joints
Ice-filled rock joints are a common feature of high mountain permafrost areas. Warming of these joints in rock can lead to instabilities and rockfall events. In the following study, a series of direct shear tests was performed with artificial samples simulating ice-filled rock joints. The direct she...
Main Author: | |
---|---|
Format: | Text |
Language: | English |
Published: |
Institute of Northern Engineering, University of Alaska Fairbanks
2008
|
Subjects: | |
Online Access: | http://eprints.brighton.ac.uk/5798/ http://eprints.brighton.ac.uk/5798/1/Gunzel_NICOP_581-586.pdf http://ipa.arcticportal.org/meetings/international-conferences.html |
id |
ftunivbrighton:oai:eprints.brighton.ac.uk:5798 |
---|---|
record_format |
openpolar |
spelling |
ftunivbrighton:oai:eprints.brighton.ac.uk:5798 2023-05-15T16:37:07+02:00 Shear strength of ice-filled rock joints Günzel, Friederike 2008-01-01 text http://eprints.brighton.ac.uk/5798/ http://eprints.brighton.ac.uk/5798/1/Gunzel_NICOP_581-586.pdf http://ipa.arcticportal.org/meetings/international-conferences.html en eng Institute of Northern Engineering, University of Alaska Fairbanks http://eprints.brighton.ac.uk/5798/1/Gunzel_NICOP_581-586.pdf Günzel, Friederike (2008) Shear strength of ice-filled rock joints In: Proceedings of the 9th international conference on permafrost, 29 Jun - 03 Jul 2008, Fairbanks, Alaska, USA, 29 June - 3 July, 2008. H200 Civil Engineering H220 Environmental Engineering Contribution to conference proceedings in the public domain PeerReviewed 2008 ftunivbrighton 2018-12-03T19:49:52Z Ice-filled rock joints are a common feature of high mountain permafrost areas. Warming of these joints in rock can lead to instabilities and rockfall events. In the following study, a series of direct shear tests was performed with artificial samples simulating ice-filled rock joints. The direct shear tests were carried out in two testing modes: constant strain and constant stress. In constant stress tests, the ice-filled joints show a parabolic relationship between normal stress and shear stress unlike the linear relationship usually found in mineral filled rock joints (Barton 1974). Constant stress tests were also conducted in which the samples were allowed to warm up until failure occurred while a constant normal stress and a constant shear test were applied. Different failure modes could be identified, either driven by breaking the connection of ice and concrete or ductile deformation of the ice or a combination of both. Text Ice permafrost UBR (University of Brighton Repository) Barton ENVELOPE(-58.733,-58.733,-62.233,-62.233) |
institution |
Open Polar |
collection |
UBR (University of Brighton Repository) |
op_collection_id |
ftunivbrighton |
language |
English |
topic |
H200 Civil Engineering H220 Environmental Engineering |
spellingShingle |
H200 Civil Engineering H220 Environmental Engineering Günzel, Friederike Shear strength of ice-filled rock joints |
topic_facet |
H200 Civil Engineering H220 Environmental Engineering |
description |
Ice-filled rock joints are a common feature of high mountain permafrost areas. Warming of these joints in rock can lead to instabilities and rockfall events. In the following study, a series of direct shear tests was performed with artificial samples simulating ice-filled rock joints. The direct shear tests were carried out in two testing modes: constant strain and constant stress. In constant stress tests, the ice-filled joints show a parabolic relationship between normal stress and shear stress unlike the linear relationship usually found in mineral filled rock joints (Barton 1974). Constant stress tests were also conducted in which the samples were allowed to warm up until failure occurred while a constant normal stress and a constant shear test were applied. Different failure modes could be identified, either driven by breaking the connection of ice and concrete or ductile deformation of the ice or a combination of both. |
format |
Text |
author |
Günzel, Friederike |
author_facet |
Günzel, Friederike |
author_sort |
Günzel, Friederike |
title |
Shear strength of ice-filled rock joints |
title_short |
Shear strength of ice-filled rock joints |
title_full |
Shear strength of ice-filled rock joints |
title_fullStr |
Shear strength of ice-filled rock joints |
title_full_unstemmed |
Shear strength of ice-filled rock joints |
title_sort |
shear strength of ice-filled rock joints |
publisher |
Institute of Northern Engineering, University of Alaska Fairbanks |
publishDate |
2008 |
url |
http://eprints.brighton.ac.uk/5798/ http://eprints.brighton.ac.uk/5798/1/Gunzel_NICOP_581-586.pdf http://ipa.arcticportal.org/meetings/international-conferences.html |
long_lat |
ENVELOPE(-58.733,-58.733,-62.233,-62.233) |
geographic |
Barton |
geographic_facet |
Barton |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_relation |
http://eprints.brighton.ac.uk/5798/1/Gunzel_NICOP_581-586.pdf Günzel, Friederike (2008) Shear strength of ice-filled rock joints In: Proceedings of the 9th international conference on permafrost, 29 Jun - 03 Jul 2008, Fairbanks, Alaska, USA, 29 June - 3 July, 2008. |
_version_ |
1766027418366115840 |