DE-Lecture05-Cutter-Suction-Head-Dredges

DE-Lecture05-Cutter-Suction-Head-Dredges - Dredging...

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Unformatted text preview: Dredging Dredging Engineering Lecture 05 CutterCutter-Suction Dredges (CSD) L. Prieto-Portar 2010 The operation of a large cutter suction (CSD) dredge. Most cutter suction dredges have a pontoon type hull structure without propulsion (larger dredges have a conventional hull and propulsion systems). Dredging takes place with the aid of the dredge’s anchors through twin winches and two spuds, shown below. Jan de Nul’s “Marco Polo” with 21,913 HP. The dredge is extending the airport runway seen in the far background. Notice the silt screen at bottom, required to protect the coral reefs. Jan de Nul’s “Leonardo da Vinci”. This cutter suction dredge is one of the world’s largest with 27,524 HP. It is dredging glacial till for the Storebaelt bridge in Denmark. Abu-Dhabi’s MMDC “Al-Sadr” dredge. This Beaver 3800 is one of the largest cutter suction dredges produced by IHC. It has a 22,000 kW powerplant and is capable of dredging to depths of 27 m (89 feet). Sliedrecht 35 has a 12,680 HP total installed power, capable of dredging to 82 feet. The Hercules has a total of 8,265 kW (11,240 HP) installed power which permits it to dredge to almost 66 foot depths. The Hercules has a total of 8,265 kW (11,240 HP) installed power which permits it to dredge to almost 66 foot depths. 65.6 feet 31.5 inches 29.5 inches 11,240 HP 5,100 HP 1,802 HP 2,002 HP The Sliedrecht 27 has 9,800 HP of installed power that permits it to dredge to a depth of 197 feet. The Sliedrecht 27 has 9,800 HP of installed power that permits it to dredge to a depth of 197 feet. 197 feet 41.3 inches 35.4/33.5 inches 9,807 HP 3x1,911 HP 1,673 HP (21 feet) Dredging cutting pattern advance when using fixed spuds. Dredging cutting pattern advance when using a revolving drum. Dredging cutting pattern advance when using a spud carriage. ...
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DE-Lecture05-Cutter-Suction-Head-Dredges - Dredging...

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