Abstract: A dredging apparatus for removing sediments from a bed of an expanse of water, includes: a suction apparatus including a) a submersible pump including: a housing body provided with an inlet mouth and with a discharge opening and an impeller rotatably supported in the body between the inlet mouth and the discharge opening and rotatably driven by a respective driving device; and b) a suction head associated to the inlet mouth of the housing body of the pump and provided at the bottom with a suction opening of the sediments; wherein the suction opening of the head has a value of the cross-section area dimensioned to achieve in the working range of the pump a suction speed capable of removing the sediments by means of the fluid dynamics removal action carried out by the water sucked into the head.

Abstract: A dredging apparatus is described for removing sediments from a bed of an expanse of water, comprising: a suction apparatus including a) a submersible pump including: a housing body provided with an inlet mouth and with a discharge opening and an impeller rotatably supported in the body between the inlet mouth and the discharge opening and rotatably driven by a respective driving device; and b) a suction head associated to the inlet mouth of the housing body of the pump and provided at the bottom with a suction opening of the sediments; wherein the suction opening of the head has a value of the cross-section area dimensioned to achieve in the working range of the pump a suction speed capable of removing the sediments by means of the fluid dynamics removal action carried out by the water sucked into the head. The invention also describes a dredging method which may be carried out by means of such an apparatus.

Abstract: A floating device (2, 102) for pipes (1) is described comprising at least two floating elements (3) each comprising a substantially semi-tubular body (4) and removably associable so as to define a pipe (1) housing seat (5), wherein the substantially semi-tubular body (4) of the floating elements (3) comprises at least a first protrusion (6) and at least a first slot (7) at a first longitudinal edge (8) thereof and at least a second protrusion (9) and at least a second slot (10) at a second opposite longitudinal edge (11) thereof; advantageously, the protrusions (6, 9) are substantially aligned with the slots (7, 10) at opposite parts with respect to a longitudinal centerline plane (TXL) of the floating element (3) so as to allow at least a partial interpenetration of the substantially semi-tubular bodies (4) of the floating elements (3).

Abstract: A floating device (2, 102) for pipes (1) is described comprising at least two floating elements (3) each comprising a substantially semi-tubular body (4) and removably associable so as to define a pipe (1) housing seat (5), wherein the substantially semi-tubular body (4) of the floating elements (3) comprises at least a first protrusion (6) and at least a first slot (7) at a first longitudinal edge (8) thereof and at least a second protrusion (9) and at least a second slot (10) at a second opposite longitudinal edge (11) thereof; advantageously, the protrusions (6, 9) are substantially aligned with the slots (7, 10) at opposite parts with respect to a longitudinal centreline plane (TXL) of the floating element (3) so as to allow at least a partial interpenetration of the substantially semi-tubular bodies (4) of the floating elements (3).