Predicting hydraulic conductivity of bentonite backfill after swelling

H. Komine*

*この研究の対応する著者

研究成果: Paper査読

抄録

Mixtures of sand and bentonite will be used as bentonite-based backfills for radioactive waste repositories in Japan. Very low hydraulic conductivity of the sand-bentonite mixtures is expected to keep wastes separated from the surrounding environment. However, the function of low permeability of bentonite-based backfills is degraded by the altered hydraulic conductivity of sand-bentonite mixtures after swelling deformation. This study investigates experimentally hydraulic conductivity changes before and after swelling for sand-bentonite mixtures. Furthermore, results confirm the applicability of theoretical equations for evaluating the hydraulic conductivity of bentonite-based materials, which have already been proposed in Komine (2008), by comparing calculated results and experimental results.

本文言語English
出版ステータスPublished - 2011 12月 1
外部発表はい
イベント14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2011 - Hong Kong, China
継続期間: 2011 5月 232011 5月 27

Conference

Conference14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2011
国/地域China
CityHong Kong
Period11/5/2311/5/27

ASJC Scopus subject areas

  • 土壌科学
  • 地盤工学および土木地質学

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