土質安定処理(1)

[III-319] 材料不均一性を有する固化処理土の強度特性

〇張 涛¹、笠間 清伸¹ (1.東京工業大学)

キーワード：固化処理、攪拌精度、攪拌時間、一軸圧縮強さ

Cement-mixing technique in ground improvement has been widely used for stabilizing soft soils in applications ranging from the strengthening of weak soils foundation to the mitigation of liquefaction. But there remains a high degree of spatial variability in the physical and mechanical properties of the treated ground (i.e., soil unit weight, shear strength, etc.). This spatial variability introduces uncertainties in the design of foundations on cement-mixed ground.The purpose of this study is to make cement-mixed soil specimen with different mixing quality and to evaluate a strength variation in terms of mixing quality such as water cement ratio.