To provide a mud improvement method capable of continuously carrying out treatment to a dredged mud from dredging to improved soil, increasing efficiency of the treatment of the dredged mud and, at the same time, carrying out the treatment of the dredged mud even if there is no wide space around a dredging site by eliminating a curing space.
A dredging process making the dredged mud as the dredged mud having water content not more than 200% and a process changing into the improved soil having water content not more than 100% enabling the dumping conveyance to carry out by mixing a proper amount of neutral soil conditioner in the middle of conveyance while conveying the dredged mud to agitate and mix with a pipe-line mixer 9 are continuously carried out by using a high concentration mud dredger 1.
Higashio Masahiro
Torii Kazuhisa