Bulletin of the Faculty of Agriculture, Shimane University

Faculty of Agriculture, Shimane University

ISSN:0370-940X

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Bulletin of the Faculty of Agriculture, Shimane University 4

1970-12-15 発行

締固め不飽和土の二次圧密について(III) : 応力増加比の圧密特性への影響

Secondary Consolidation of Compacted Partly Saturated Soils(III) : The Influence of Load Increment Ratio on Behaviour of Consolidation

Toriyama, Koushi

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The characteristics of consolidation of partly saturated soils compacted wet of optimum moisture content is changed with load increment ratio ⊿P/P_0.
The consolidation curves plotted with √<t> and log t methods are classified into three types similarly as that of normally consolidated soils. Moreover, the compress ibility of compacted soils decreases with the decrease of ⊿P/P_0. This behaviour is alike as quasi-preconsolidation of normally consolidated soils.
The rate of secondary consolidation dε/d log t is independent on ⊿P/P_0 in the range of ⊿P/P_0≧0.2 but the displacement during consolidation is reduced with the decrease of ⊿P/P_0, so the influence of secondary consolidation grows with the decrease of ⊿P/P_0. In the case of ⊿P/P_0≦0.2, the great part of consolidation is progressed as secondary consolidation.

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NCID

AN00108015

d0030004n026.pdf 812 KB

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