Soil modification method, soil modification agent used therefor, and modified soil

摘要

[PROBLEMS] A soil modification method having a high ability to reduce liquefaction while reducing the burden on the environment and enabling reversible use of the ground without inducing a complicated process, and a soil modifying agent used for the method. As well as providing modified soil. Kind Code: A1 A microorganism, a nutrient source and a cellulose source are added to a target soil mainly composed of earth and sand. Microorganisms produce calcium compounds 22 by metabolism. Nutrient sources include at least calcium and components used by microorganisms in metabolism. The cellulose source contains cellulose fibers 21 as a main component, and is entangled with earth and sand particles 12 constituting the modified soil 11, and a calcium compound 22 generated by microorganisms is precipitated. [Selection diagram] Fig. 1