GROUND IMPROVEMENT METHOD

PROBLEM TO BE SOLVED: To provide a ground improvement method and a ground improvement device which can be applied even in a narrow work space and realize easy application.SOLUTION: A ground improvement method comprises step S3 of obtaining a viscous fluidizing agent by dissolving a thickener in solvent, step S4 of obtaining a fluidization filler by mixing granular material with the fluidizing agent, step S5 of preparing a massive body by pumping the fluidization filler into the ground, and step S6 of reducing the viscosity of the thickener by decomposition of the thickener in the ground.SELECTED DRAWING: Figure 2 【課題】狭隘な作業スペースでも施工可能で、且つ、容易に施工可能な地盤改良工法及び地盤改良装置を提供する。【解決手段】増粘剤を溶剤に溶解させて粘性の流動化剤を得る工程Ｓ３と、流動化剤に粒状材料を混合して流動化充填材を得る工程Ｓ４と、流動化充填材を地盤内に圧送して塊状体を造成する工程Ｓ５と、増粘剤が地盤中で分解されて増粘剤の粘性が低下する工程Ｓ６と、を含む地盤改良工法。【選択図】図２