Øysand research site: Geotechnical characterisation of deltaic sandy-silty soils
This paper describes the geology and geotechnical engineering properties of the fluvial and deltaic gravelly-sandy-silty sediments at Øysand, Norway. Geophysical and geotechnical site investigations carried out between 2016 and 2018 at the site are presented. Field testing included state-of-the-prac...
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doaj-469124a621734f48bb18404f2aa457a82020-11-25T01:37:52ZengAIMS PressAIMS Geosciences2471-21322019-09-015475078310.3934/geosci.2019.4.750Øysand research site: Geotechnical characterisation of deltaic sandy-silty soilsSantiago Quinteros0Aleksander Gundersen1Jean-Sebastien L'Heureux2J. Antonio H. Carraro3Richard Jardine41 Offshore Geotechnics, Norwegian Geotechnical Institute, Sognsveien 72, N-0855 Oslo, Norway 3 Department of Civil and Environmental Engineering, Imperial College London, Skempton Building, South Kensington Campus, SW7 2AZ, London, UK1 Offshore Geotechnics, Norwegian Geotechnical Institute, Sognsveien 72, N-0855 Oslo, Norway2 Geotechnics and Natural Hazards Trondheim, Norwegian Geotechnical Institute, Høgskoleringen 9, N-7034 Trondheim, Norway3 Department of Civil and Environmental Engineering, Imperial College London, Skempton Building, South Kensington Campus, SW7 2AZ, London, UK3 Department of Civil and Environmental Engineering, Imperial College London, Skempton Building, South Kensington Campus, SW7 2AZ, London, UKThis paper describes the geology and geotechnical engineering properties of the fluvial and deltaic gravelly-sandy-silty sediments at Øysand, Norway. Geophysical and geotechnical site investigations carried out between 2016 and 2018 at the site are presented. Field testing included state-of-the-practice and state-of-the-art soil characterisation techniques such as total sounding, seismic cone penetration testing, seismic flat dilatometer, multichannel analysis of surface waves, electrical resistivity tomography, ground penetrating radar, piezometers, thermistors strings, slug tests, and permeability tests using a newly developed CPT permeability probe from NGI. Several sampling techniques were used at the site to assess sample quality. Laboratory testing consisted of index tests and advanced triaxial tests with bender elements to estimate shear strength and stiffness. Data interpretation, engineering soil properties and state variables derived from this analysis are presented, along with comments on data quality. Engineering problems investigated at Øysand so far and discussed in this paper are related to: the impact of using different CPTU types, sample quality assessment by obtaining soils with state-of-the-practice and state-of-the-art techniques (such as gel-push sampler and ground freezing), and frost heave susceptibility.https://www.aimspress.com/article/10.3934/geosci.2019.4.750/fulltext.htmlgravelly sandsiltin situ testingsamplinglaboratory testingsite characterizationpermeability |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Santiago Quinteros Aleksander Gundersen Jean-Sebastien L'Heureux J. Antonio H. Carraro Richard Jardine |
spellingShingle |
Santiago Quinteros Aleksander Gundersen Jean-Sebastien L'Heureux J. Antonio H. Carraro Richard Jardine Øysand research site: Geotechnical characterisation of deltaic sandy-silty soils AIMS Geosciences gravelly sand silt in situ testing sampling laboratory testing site characterization permeability |
author_facet |
Santiago Quinteros Aleksander Gundersen Jean-Sebastien L'Heureux J. Antonio H. Carraro Richard Jardine |
author_sort |
Santiago Quinteros |
title |
Øysand research site: Geotechnical characterisation of deltaic sandy-silty soils |
title_short |
Øysand research site: Geotechnical characterisation of deltaic sandy-silty soils |
title_full |
Øysand research site: Geotechnical characterisation of deltaic sandy-silty soils |
title_fullStr |
Øysand research site: Geotechnical characterisation of deltaic sandy-silty soils |
title_full_unstemmed |
Øysand research site: Geotechnical characterisation of deltaic sandy-silty soils |
title_sort |
øysand research site: geotechnical characterisation of deltaic sandy-silty soils |
publisher |
AIMS Press |
series |
AIMS Geosciences |
issn |
2471-2132 |
publishDate |
2019-09-01 |
description |
This paper describes the geology and geotechnical engineering properties of the fluvial and deltaic gravelly-sandy-silty sediments at Øysand, Norway. Geophysical and geotechnical site investigations carried out between 2016 and 2018 at the site are presented. Field testing included state-of-the-practice and state-of-the-art soil characterisation techniques such as total sounding, seismic cone penetration testing, seismic flat dilatometer, multichannel analysis of surface waves, electrical resistivity tomography, ground penetrating radar, piezometers, thermistors strings, slug tests, and permeability tests using a newly developed CPT permeability probe from NGI. Several sampling techniques were used at the site to assess sample quality. Laboratory testing consisted of index tests and advanced triaxial tests with bender elements to estimate shear strength and stiffness. Data interpretation, engineering soil properties and state variables derived from this analysis are presented, along with comments on data quality. Engineering problems investigated at Øysand so far and discussed in this paper are related to: the impact of using different CPTU types, sample quality assessment by obtaining soils with state-of-the-practice and state-of-the-art techniques (such as gel-push sampler and ground freezing), and frost heave susceptibility. |
topic |
gravelly sand silt in situ testing sampling laboratory testing site characterization permeability |
url |
https://www.aimspress.com/article/10.3934/geosci.2019.4.750/fulltext.html |
work_keys_str_mv |
AT santiagoquinteros øysandresearchsitegeotechnicalcharacterisationofdeltaicsandysiltysoils AT aleksandergundersen øysandresearchsitegeotechnicalcharacterisationofdeltaicsandysiltysoils AT jeansebastienlheureux øysandresearchsitegeotechnicalcharacterisationofdeltaicsandysiltysoils AT jantoniohcarraro øysandresearchsitegeotechnicalcharacterisationofdeltaicsandysiltysoils AT richardjardine øysandresearchsitegeotechnicalcharacterisationofdeltaicsandysiltysoils |
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1725056758074834944 |