Removal of sand from sea or river bed - by machine which creates turbulence so that sand is suspended in water

摘要

The machine is for removing sand from river beds or from the sea bed in coastal waters. The machine (8) is mounted between the hulls of a catamaran (2) and its lower end extends downwards to the sea or river bed (24). The machine is provided with turbulence generators which create a sufficient turbulence so that the sand is removed from the sea or river bed and becomes suspended in the water. The suspended sand is then carried away by the tidal or river current (15). USE - Removal of sand from river or sea bed.