Abstract
Special working ships, on which cement soil mixing plant and conveying device are pre-installed, have been deveoped and found practical applications in coastal engineering. Two examples of widening a dyke and building an embankment inside the reclamation by use of soft dredged soil are presented. Long distance transportation of the cement treated soil is an urgent problem to be solved. Though the working ships are able to convey cement treated dredging of natural water content by 250-300m, many projects require a transportation as long as 500m. Some improving ideas are discussed. Finally, a ground improvement method by use of the introduced cement treatment technique is suggested, so as to eliminate the disposal of dredging.
