Seismic cone penetration test and seismic tomography in permafrost
Two high-resolution multi-offset vertical seismic profile (VSP) surveys were carried out in a permafrost mound near Umiujaq in northern Quebec, Canada, while performing seismic cone penetration tests (SCPT) to study the cryostratigraphy and assess the body waves velocities and the dynamic properties...
Published in: | Canadian Geotechnical Journal |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
2004
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/t04-026 http://www.nrcresearchpress.com/doi/pdf/10.1139/t04-026 |
id |
crcansciencepubl:10.1139/t04-026 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/t04-026 2024-03-03T08:47:46+00:00 Seismic cone penetration test and seismic tomography in permafrost LeBlanc, Anne-Marie Fortier, Richard Allard, Michel Cosma, Calin Buteau, Sylvie 2004 http://dx.doi.org/10.1139/t04-026 http://www.nrcresearchpress.com/doi/pdf/10.1139/t04-026 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Geotechnical Journal volume 41, issue 5, page 796-813 ISSN 0008-3674 1208-6010 Civil and Structural Engineering Geotechnical Engineering and Engineering Geology journal-article 2004 crcansciencepubl https://doi.org/10.1139/t04-026 2024-02-07T10:53:38Z Two high-resolution multi-offset vertical seismic profile (VSP) surveys were carried out in a permafrost mound near Umiujaq in northern Quebec, Canada, while performing seismic cone penetration tests (SCPT) to study the cryostratigraphy and assess the body waves velocities and the dynamic properties of warm permafrost. Penetrometer-mounted triaxial accelerometers were used as the VSP receivers, and a swept impact seismic technique (SIST) source generating both compressional and shear waves was moved near the surface following a cross configuration of 40 seismic shot-point locations surrounding each of the two SCPTs. The inversion of travel times based on a simultaneous iterative reconstruction technique (SIRT) provided tomographic images of the distribution of seismic velocities in permafrost. The Young's and shear moduli at low strains were then calculated from the seismic velocities and the permafrost density measured on core samples. The combination of multi-offset VSP survey, SCPT, SIST, and SIRT for tomographic imaging led to new insights in the dynamic properties of permafrost at temperatures close to 0 °C. The P- and S-wave velocities in permafrost vary from 2400 to 3200 m/s and from 900 to 1750 m/s, respectively, for a temperature range between 0.2 and 2.0 °C. The Young's modulus varies from 2.15 to 13.65 GPa, and the shear modulus varies from 1.00 to 4.75 GPa over the same range of temperature.Key words: permafrost, seismic cone penetration test, vertical seismic profiling, seismic tomography, dynamic properties. Article in Journal/Newspaper permafrost Umiujaq Canadian Science Publishing Canada Umiujaq ENVELOPE(-76.549,-76.549,56.553,56.553) Canadian Geotechnical Journal 41 5 796 813 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Civil and Structural Engineering Geotechnical Engineering and Engineering Geology |
spellingShingle |
Civil and Structural Engineering Geotechnical Engineering and Engineering Geology LeBlanc, Anne-Marie Fortier, Richard Allard, Michel Cosma, Calin Buteau, Sylvie Seismic cone penetration test and seismic tomography in permafrost |
topic_facet |
Civil and Structural Engineering Geotechnical Engineering and Engineering Geology |
description |
Two high-resolution multi-offset vertical seismic profile (VSP) surveys were carried out in a permafrost mound near Umiujaq in northern Quebec, Canada, while performing seismic cone penetration tests (SCPT) to study the cryostratigraphy and assess the body waves velocities and the dynamic properties of warm permafrost. Penetrometer-mounted triaxial accelerometers were used as the VSP receivers, and a swept impact seismic technique (SIST) source generating both compressional and shear waves was moved near the surface following a cross configuration of 40 seismic shot-point locations surrounding each of the two SCPTs. The inversion of travel times based on a simultaneous iterative reconstruction technique (SIRT) provided tomographic images of the distribution of seismic velocities in permafrost. The Young's and shear moduli at low strains were then calculated from the seismic velocities and the permafrost density measured on core samples. The combination of multi-offset VSP survey, SCPT, SIST, and SIRT for tomographic imaging led to new insights in the dynamic properties of permafrost at temperatures close to 0 °C. The P- and S-wave velocities in permafrost vary from 2400 to 3200 m/s and from 900 to 1750 m/s, respectively, for a temperature range between 0.2 and 2.0 °C. The Young's modulus varies from 2.15 to 13.65 GPa, and the shear modulus varies from 1.00 to 4.75 GPa over the same range of temperature.Key words: permafrost, seismic cone penetration test, vertical seismic profiling, seismic tomography, dynamic properties. |
format |
Article in Journal/Newspaper |
author |
LeBlanc, Anne-Marie Fortier, Richard Allard, Michel Cosma, Calin Buteau, Sylvie |
author_facet |
LeBlanc, Anne-Marie Fortier, Richard Allard, Michel Cosma, Calin Buteau, Sylvie |
author_sort |
LeBlanc, Anne-Marie |
title |
Seismic cone penetration test and seismic tomography in permafrost |
title_short |
Seismic cone penetration test and seismic tomography in permafrost |
title_full |
Seismic cone penetration test and seismic tomography in permafrost |
title_fullStr |
Seismic cone penetration test and seismic tomography in permafrost |
title_full_unstemmed |
Seismic cone penetration test and seismic tomography in permafrost |
title_sort |
seismic cone penetration test and seismic tomography in permafrost |
publisher |
Canadian Science Publishing |
publishDate |
2004 |
url |
http://dx.doi.org/10.1139/t04-026 http://www.nrcresearchpress.com/doi/pdf/10.1139/t04-026 |
long_lat |
ENVELOPE(-76.549,-76.549,56.553,56.553) |
geographic |
Canada Umiujaq |
geographic_facet |
Canada Umiujaq |
genre |
permafrost Umiujaq |
genre_facet |
permafrost Umiujaq |
op_source |
Canadian Geotechnical Journal volume 41, issue 5, page 796-813 ISSN 0008-3674 1208-6010 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/t04-026 |
container_title |
Canadian Geotechnical Journal |
container_volume |
41 |
container_issue |
5 |
container_start_page |
796 |
op_container_end_page |
813 |
_version_ |
1792504018784747520 |