HC-Lecture71-Cutter-Suction-Head-Dredges

HC-Lecture71-Cutter-Suction-Head-Dredges - Heavy...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Heavy Construction Heavy Construction Lecture #71 Lecture #71 An Overview of Cutter-Suction Head Dredges L. Prieto-Portar 2008 1) The Dredges 2) The Ancillary Equipment ) Containment 3) Containment 4) Surveying the Performed Work 1. Cutter-Suction Head Dredges: a)Jan de Nul (Belgium) b)Van Oord (Nederland) c) Guluk (Nederland) ) llicott (USA) d) Ellicott (USA) e) IHC (Nederland) How do cutter head dredges operate? 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 dredges anchors through twin winches and two spuds, shown below. Jan de Nuls 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 Nuls Leonardo da Vinci. This cutter suction dredge is one of the worlds largest with 27,524 HP. It is dredging glacial till for the Storebaelt bridge in Denmark. This is one of two Ellicott International (Baltimore, MD, USA) cutterhead suction dredges delivered to Vietnam in 1991. Ellicott has been designing and building dredges since 1885. This contract involved two dredges, spare parts and training for M$ 3. The dredges are operated by the Vietnam Waterway Construction Company, a government dredging and construction company...
View Full Document

Page1 / 59

HC-Lecture71-Cutter-Suction-Head-Dredges - Heavy...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online