
A slurry obtained from a hydraulic excavating or dredging process is passed through classifiers which grade its solid phase according to particle size. The area to be filled is subdivided into a plurality of basins and secondary slurries carrying the fractions are deposited successively in these basins. Simultaneous with the deposition of the coarse-fraction slurry in a second basin and after the settling of the coarse fraction in the first basin, a medium-fraction slurry is deposited in the fir...











