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島根大学農学部研究報告 Volume 16
published_at 1982-12-20
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)
Toriyama Koushi
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Descriptions
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.
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.
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