Soil cement column wall construction method using column improvement method, core material press fit and vibration press fit

摘要

PROBLEM TO BE SOLVED: To use a columnar modification method capable of easily installing a core material made of H-shaped steel or the like in a soil cement columnar body and reducing the amount of residual soil discharged, and a core material press fit and a vibration press fit. Provide a soil cement column wall construction method. SOLUTION: A soil cement columnar body a is installed in the ground by stirring and mixing a slurry-type cement-based solidifying material poured from the ground with in-situ soil. Plural soil cement column bodies a are constructed while being wrapped. A soil cement pillar row wall A including a plurality of soil cement pillar rows a is constructed. The core material B made of H-shaped steel or the like is press-fitted and installed in the soil cement columnar body a while applying vibration. 20 to 70 parts by weight of cement-based solidifying material is mixed with 100 parts by weight of in-situ soil. A part or all of the cement-based solidifying material may be replaced with the magnesium-based solidifying material. [Selection diagram] Figure 2