中空ねじりせん断試験によるセメント改良砂の強度・変形特性 : 排水せん断強度と微小ひずみでの変形特性

概要

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This study is related to the mechanical behavior of cement-treated sands by the cement stabilization method. In this paper, the drained shear strength and the deformation properties of cement-treated sands are investigated in detail by performing hollow cylindrical torsional shear tests. The following conclusions were obtained, (1) A power function was adopted to express the relationship between the unconfined compression strength 'qu' and the stabilizing material-to-water ratio 'S/Wt.' (2) For cement-treated sands, it was concluded that the 'qu' is a direct index of the degree of cementation. (3) The drained shear strength and the residual strength of cement-treated sands can be approximately evaluated from the 'qu' and the internal friction angle of untreated sands. (4) The initial shear modulus 'G_<max>' of cement-treated sands can be determined as a function of the 'qu' and the effective mean principal stress 'σ'm.'
社団法人日本建築学会の論文
2003-08-30