Theoretical equations for evaluating hydraulic conductivities of bentonite based buffer and backfill

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Theoretical new equations for evaluating the hydraulic conductivity of compacted bentonites and bentonite-sand mixtures are derived for designing bentonite based buffer and backfill materials to fill high-level nuclear waste repositories. New equations for evaluating the velocity of interlayer-water flow between two montmorillonite layers considering the swelling behaviors of montmorillonite are proposed. Furthermore, a calculating method for the hydraulic conductivity of compacted bentonite and bentonite-sand mixtures is presented by combining the new equations with the equations for evaluating swelling behavior of montmorillonite in bentonite, which have already been proposed by the author. The applicability of this method was investigated by comparing the calculated results with laboratory test results on the hydraulic conductivity of compacted bentonites and bentonite-sand mixtures.

Original languageEnglish
Title of host publicationProceedings of the 16th International Conference on Soil Mechanics and Geotechnical Engineering
Subtitle of host publicationGeotechnology in Harmony with the Global Environment
Pages2289-2292
Number of pages4
Publication statusPublished - 2005 Dec 1
Event16th International Conference on Soil Mechanics and Geotechnical Engineering: Geotechnology in Harmony with the Global Environment, ICSMGE 2005 - Osaka, Japan
Duration: 2005 Sep 122005 Sep 16

Publication series

NameProceedings of the 16th International Conference on Soil Mechanics and Geotechnical Engineering: Geotechnology in Harmony with the Global Environment
Volume4

Conference

Conference16th International Conference on Soil Mechanics and Geotechnical Engineering: Geotechnology in Harmony with the Global Environment, ICSMGE 2005
CountryJapan
CityOsaka
Period05/9/1205/9/16

ASJC Scopus subject areas

  • Soil Science
  • Geotechnical Engineering and Engineering Geology

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  • Cite this

    Komine, H. (2005). Theoretical equations for evaluating hydraulic conductivities of bentonite based buffer and backfill. In Proceedings of the 16th International Conference on Soil Mechanics and Geotechnical Engineering: Geotechnology in Harmony with the Global Environment (pp. 2289-2292). (Proceedings of the 16th International Conference on Soil Mechanics and Geotechnical Engineering: Geotechnology in Harmony with the Global Environment; Vol. 4).