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Uncertainties in Water Retention Curve of Bentonite

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Advances in Computer Methods and Geomechanics

Part of the book series: Lecture Notes in Civil Engineering ((LNCE,volume 56))

Abstract

Bentonites are increasingly used for various geoenvironmental applications (e.g. hydraulic barriers and waste containment) owing to its low hydraulic conductivity and high water retention capacity. Investigating the aforementioned problems necessitates the knowledge of the water retention curve (WRC) of bentonite, which maps the variation of the degree of saturation (S) with suction (\(\psi\)). It is now well established that there are various uncertainties associated with WRC. In this study, a database exclusively for the WRC of bentonite is presented. The uncertainties in the WRC parameters of the database are quantified using the copula approach and thereafter confidence intervals are created. Finally, as an application example, the confidence intervals are used to calculate uncertainty bounds in an unsaturated transient seepage problem.

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Authors and Affiliations

  1. Department of Civil Engineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India

    A. Prakash, B. Hazra & S. Sreedeep

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  1. A. Prakash
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  2. B. Hazra
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  3. S. Sreedeep
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Correspondence to A. Prakash .

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Editors and Affiliations

  1. Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat, India

    Amit Prashant

  2. Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat, India

    Ajanta Sachan

  3. University of Arizona, Tuscon, AZ, USA

    Chandrakant S. Desai

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Prakash, A., Hazra, B., Sreedeep, S. (2020). Uncertainties in Water Retention Curve of Bentonite. In: Prashant, A., Sachan, A., Desai, C. (eds) Advances in Computer Methods and Geomechanics . Lecture Notes in Civil Engineering, vol 56. Springer, Singapore. https://doi.org/10.1007/978-981-15-0890-5_2

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  • DOI: https://doi.org/10.1007/978-981-15-0890-5_2

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-15-0889-9

  • Online ISBN: 978-981-15-0890-5

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