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Analysis of ground geophysical, airborne TEM, and geotechnical data for mapping quick clays in Sweden
Swedish Geotechnical Institute.
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2017 (English)In: Landslides in sensitive clays: From research to implementation / [ed] Thakur, V, L'Heureux, JS, Locat, A, Cham: Springer , 2017, p. 463-474Chapter in book (Refereed)
Abstract [en]

Airborne transient electromagnetic (ATEM) data for mapping clay areas are acquired in four areas in Sweden. The resistivity models from the inversions of ATEM data are compared to the existing geotechnical, geological and ground geophysical data in one of the areas at Slumpån located in the Göta River valley. The ATEM models reveal information about layering and thickness of the sediments, the river depth and bedrock undulations. The estimated resistivities at the known locations of quick clays are within the range of 8-40 ohmm. The variation is dependent on the type of the surrounding sediments and the leaching process. The resistivity models have a limited resolution and must always be integrated with geotechnical and geological information for a confident and precise interpretation that leads to a realistic model. The method can be utilized as an effective tool prior to planning of any detailed and costly ground geotechnical investigations.

Place, publisher, year, edition, pages
Cham: Springer , 2017. p. 463-474
Series
Advances in Natural and Technological Hazards Research ; 46
Keywords [en]
Clay, Sensitivity, Geophysical investigation, Electricity, Magnetism, Electrical resistivity, Mapping, Sweden, Conference, Trondheim, 2017, English
National Category
Geotechnical Engineering
Identifiers
URN: urn:nbn:se:swedgeo:diva-865DOI: 10.1007/978-3-319-56487-6_41Local ID: 000085466ISBN: 978-3-319-56486-9 (print)OAI: oai:DiVA.org:swedgeo-865DiVA, id: diva2:1364234
Note

Presented at the 2nd International Workshop on Landslides in Sensitive Clays, Trondheim, Norway, June 12-14, 2017

Available from: 2019-10-22 Created: 2019-10-22 Last updated: 2019-10-22

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CiteExportLink to record
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Citation style
  • apa
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  • ieee
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  • de-DE
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  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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  • asciidoc
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