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Recommended Practice for the Use of Strength Anisotropy Factors in Stability Calculations

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Landslides in Sensitive Clays

Part of the book series: Advances in Natural and Technological Hazards Research ((NTHR,volume 46))

Abstract

This paper presents a recommended practice for the use of strength anisotropy in stability calculations. The recommendations are based on laboratory data from high quality block samples collected by NGI from more than 20 sites. The strength anisotropy was correlated against natural water content, OCR, sensitivity, plasticity index and clay contents. Despite some scatter in data, the paper presents correlations to estimate strength anisotropy for Norwegian clays. A benchmark stability calculation has been done to illustrate the overall impact of various anisotropy factors on the factor of safety.

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References

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Acknowledgements

The cooperative research program «Natural hazards: Infrastructure for Floods and Slides (NIFS)» by the Norwegian Public Roads Administration, the Norwegian National Rail Administration and the Norwegian Water Resources and Energy Directorate is acknowledged for the support. The authors also wish to express their gratitude to the reviewer Dr. Ivan Depina for his valuable comments.

Author information

Authors and Affiliations

  1. Department of Civil and Environmental Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway

    Vikas Thakur

  2. Norwegian Geotechnical Institute (NGI), Oslo, Norway

    Vidar Gjelsvik

  3. Multiconsult AS, Oslo, Norway

    Odd Arne Fauskerud

  4. SINTEF Building and Infrastructure, Oslo, Norway

    Stein Christensen

  5. Norwegian Public Roads Administration (NPRA), Oslo, Norway

    Frode Oset

  6. Norwegian National Rail Administration (NNRA), Oslo, Norway

    Margareta Viklund

  7. Norwegian Water Resources and Energy Directorate, Oslo, Norway

    Stein-Are Strand

Authors
  1. Vikas Thakur
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  2. Vidar Gjelsvik
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  3. Odd Arne Fauskerud
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  4. Stein Christensen
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  5. Frode Oset
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  6. Margareta Viklund
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  7. Stein-Are Strand
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Corresponding author

Correspondence to Vikas Thakur .

Editor information

Editors and Affiliations

  1. Department of Civil and Environmental Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway

    Vikas Thakur

  2. Trondheim Division, Norwegian Geotechnical Institute (NGI), Trondheim, Norway

    Jean-Sébastien L'Heureux

  3. Département de génie civil et de génie des eaux, Université Laval, Québec City, Québec, Canada

    Ariane Locat

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Thakur, V. et al. (2017). Recommended Practice for the Use of Strength Anisotropy Factors in Stability Calculations. In: Thakur, V., L'Heureux, JS., Locat, A. (eds) Landslides in Sensitive Clays. Advances in Natural and Technological Hazards Research, vol 46. Springer, Cham. https://doi.org/10.1007/978-3-319-56487-6_22

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