Fundamental Study on Volume Change Characteristics of Compacted Soils Due to Submergence

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  • 締固め土の水浸に伴う体積変化について
  • シメカタメ ド ノ スイシン ニ トモナウ タイセキ ヘンカ ニ ツイテ

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Abstract

When partially saturated soils swell and their water content increases, its soil structures supported by negative pressure are destroyed causing volume compression (collapse) and/or volume expansion (swelling). On the other hand, though compaction controls of embankment are managed by D-value (=ρ_d/ρ_<dmax>), the relation among volume change due to submergence, D-value, and consolidation pressure for the dynamically compacted soil is not examined sufficiently. In this study, the volume change was tested with Fujinomori clay, decomposed granite soil and Daisen loam by using oedometers; and the effect of D-value, consolidation pressure and water content on the volume change was verified.

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