Development in Dredge equipment in the last decade Ruud Ouwerkerk - - PowerPoint PPT Presentation

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Development in Dredge equipment in the last decade Ruud Ouwerkerk and Sergio Ooijens Dredging 2012 , San Diego, 2012 A decade of progress Technology push and market pull Project demands Higher efficiency Land reclamation New technologies

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Development in Dredge equipment in the last decade

Dredging 2012 , San Diego, 2012

Ruud Ouwerkerk and Sergio Ooijens

SLIDE 2

A decade of progress

Technology push and market pull This presentation intends to illustrate a few items

Project demands Land reclamation Beach reclamation Port construction Waterway maintenance Land reclamation Lakes and reservoirs Mining Environmental Offshore dredging New technologies For example: Larger vessels Improved dredging installations Etc. Regulations Project constrains Etc. Higher efficiency Higher accuracy Higher uptime Etc.

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Land reclamation and port construction

High volumes and low cost price Economies of scale: larger vessels with higher technologies. Leading to a 50% reduction in USD/yr3

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Economies of scale

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Larger hoppers with new technologies: The 40,000 cubic yard Congo River with a

ne man bridge, using artificial intelligence

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Cutter suction dredge J.F.J. de Nul – 2003 d’Artagnan - 2005 Ambiorix - 2012 Athena – 2012 Artemis- 2013

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Some recent progress in dredge equipment illustrated WEDA 32 & TAMU 43 - June 11, 2012 7

Larger cutter suction dredges delivered during the last decades

Jumbo Class Cutter Suction Dredges DRED GE Characteristics LEONAR DO DA VINCI 1986 MASHO UR 1996 AL SADR 1999

JFJ DE NUL 2003 D’ARTAGN AN AMBIORIX 2005/2012 ATHENA ARTEMIS 2012/2013

Tot. power inst.

20,532kW 22,380kW 20,507kW

27,150kW 26,200kW 24,702kW

Cutter power 5480kW 2400kW 2200kW

6000kW 8160hp 6000kW 8160 hp 6000kW 8160 hp

Dredge depth 32m 35m 27m

6.5/35m 35m 30.7m

Manning 41 73 30

60 43 50

Barge loading Yes No No

Yes Yes Yes

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Offshore dredging

Extended dredging depth: up to 140 m

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The larger dredges can go deeper. Smaller dredges can extend the dredging depth with the tele-tube

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Dynamic trackig: higher accuracy

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Cutterd dredgers working in waves

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Development of dredge equipmentis no longer driven by economy WEDA 31 & TAMU 42 - June 7, 2011 12

DODO Simulation Software

Cutter suction dredge Athena’s spud force analysis during dredging operations in simulated wave conditions

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Can the limits be extended

r at least safe guards be built in?

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Conventional spud carrier csd JFJ de Nul

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Longitudinally buffered spud carrier with wires csd d’Artagnan / Ambiorix

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D’Artagnan - Spud carrier with wire compensation system

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Just an impression to put man and machine in perspective: spud tilting

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Spin-off for smaller standard dredges here: IHC Beaver 6518 ( a 26”discharge) the “SPUD GUARD”

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Development of dredge equipmentis no longer driven by economy WEDA 31 & TAMU 42 - June 7, 2011 19

“Spud Guard” cylinders as mounted

n the IHC Beaver step spud carriages

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Waterway maintenance

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The WILD DRAGON ready to go

WILD DRAGON(left) Excavation drag head(right) s.g. 1.38 s.g. 1.08

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2 Hull shape: 85 m vessels

1 3 4 5

4550 ton, 1994 5970 ton, 1997 6570 ton, 1999 7150 ton, 2003 8000 ton, 2004

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Demand from the market: health and safety

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Quarters isolated from noise and vibrations Manning: J.F.J. de Nul - 60 d’ Artagnan - 43 Athena - 50

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The engine and control cabin are placed on dampers for improved comfort and reduced noise.

Comfortable operating cabin also on smaller dredgers

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Improved ergonomics for operating cabin and dredger controls; Unprecedented 3600 for the operator

Comfortable operating cabin: high efficiency

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New simulator technology Online learning

Training

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New technologies over the past decade, some highlights on the dredging installation

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Cutter Special High Pressure Medium Pressure

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“Rock special” design effort integrated with “the Curve”, a pump development to improve suction and wear of a complete pump

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Wear resistant suction / discharge hoses “Max Top” Bucket Hose “Bone Crusher hose” with innovative steel rings, not tearing out

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New cutter heads: the Lancelot cutter

Not only on our standard cutters but also successfully implemented on a large mining dredge in Africa

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Online monitoring

Follow dredger activities from any

place in the world

Online support by experts

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Development of dredge equipmentis no longer driven by economy WEDA 31 & TAMU 42 - June 7, 2011 34