CUTTER HEAD FOR DREDGING GROUND AND METHOD FOR DREDGING USING THIS CUTTER HEAD.

摘要

The invention relates to a cutter head (10) for dredging ground under water. The cutter head (10) is suitable for attachment to the ladder (2) of a cutter suction dredger (1) and for being moved through the ground (9) therewith in a lateral sweeping movement. The cutter head (10) comprises a rotation-symmetrical revolving body (11) which is rotatable around its rotation axis (12) by means of drive means and which is provided along its peripheral surface with a number of cutting tools (20) for penetrating into the ground (9), wherein the rotation axis (12) of the cutter head (10) runs substantially perpendicularly of the longitudinal direction (200) of the ladder (2) and substantially tangentially to the direction of the sweeping movement. The invention likewise relates to a method for breaking ground under (9) water, making use of the cutter head (10).