島根大学農学部研究報告

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島根大学農学部研究報告 16
1982-12-20 発行

締固め不飽和土の圧密実験(第1報)

Experimental Study of Consolidation of Compacted Partly Saturated Soil(I)
鳥山 晄司
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内容記述(抄録等)
Double cell type triaxial apparatus was manufactered for trial for the purpose of the consolidation tests of compacted partly saturated soils. Using this apparatus, pore water pressure u_w, pore air pressure u_a, volume change ⊿V, axial displacement and lateral displacement can be measured for the analysis of consolidation.
Under undrained condition, the increment of u_a and u_w with the increment of confined pressure σ_3 was measured. From the results, u_a-u_w is in the range of 0.1-0.3kg/<cm>^^^2 for the compacted soil at and wet of optimum moisture content.
It is measuredand ⊿V, u_a and u_w in the process of consolidation. The large volume change ⊿V_0 is developed at the same time of drainage. The volume change ⊿V-⊿V_0 curve by experiment for that of Terzaghi's one the consolidation of partly saturated soil is progressed more slowly than that by Terzaghi's consolidation theory.