Construction method of cured soil cement

摘要

PROBLEM TO BE SOLVED: To construct pertinent soil cement hardener by inserting a core material into cement milk at a desired depth while reducing generation volume of sludge.SOLUTION: There is provided a method for constructing soil cement hardener 7 in the ground, where a digging injection tool 2 capable of digging of the ground and injection and stirring of cement milk 5 is used, soil cement is prepared by mixing the cement milk 5 having a set volume where water content is suppressed by supplementation of superplasticizer, with dug sediment, and then a core material 6 is inserted into it so that the soil cement is hardened. In the set volume of the cement milk 5, injection volume upon digging and insertion of the digging injection tool 2 into the ground and cement milk injection portion as portion relative to the injection volume upon pulling out of the digging injection tool 2 from the ground is adjusted so that the status of the soil cement is adjusted upon insertion of the core material 6.SELECTED DRAWING: Figure 1