| 摘要 |
PROBLEM TO BE SOLVED: To provide a ground improvement method which injects collected sludge into soil and can reduce an amount of the sludge to be disposed of as industrial waste without causing adverse effect due to a contained material in the sludge and to provide a system used for the ground improvement method.SOLUTION: A ground improvement method constructs an underground consolidated body by inserting a rod (2) having an injection device (2m) into a borehole (Hb) and pulling the rod (2) while rotating the same and injecting cutting fluid and a filling material through the injection device (2m). In the ground improvement method, sludge is collected and classified in accordance with a size of particles therein. Then, the sludge having small soil particles is mixed into the cutting fluid and the sludge having large soil particles is mixed into the filling material. |
