Damen:Modular dredger gets to work in the Andes

Construction, Marine Equipment Products and Services — By on April 12, 2016 at 12:07 PM

Modular dredger shipped to the Andes

The DOP Dredger 350L is located high up in the Andes mountains at Tablachaca dam

The DOP Dredger 350L is located high up in the Andes mountains at Tablachaca dam

Reservoirs are notoriously tricky to maintain: from the surrounding area plenty of sand and silt is brought in by the river and the material deposits at the dam. As reservoirs are usually rather deep, dredging can be quite a challenge. For the Tablachaca dam in Peru another challenge was added; the location high up in the Andes required a modular dredger due to transport restrictions. The DOP Dredger proved to be the perfect solution.

The various components of the modular DOP Dredger are limited in size to ensure all could be transported by road. Moreover, the pontoons of the dredger were made locally. Damen delivered a DOP dredging package for dredging at an important depth, plus the main components of the dredger.

The DOP can be lowered to a max depth of 35 m using the A frame and winch

The DOP can be lowered to a max depth of 35 m using the A frame and winch

The dredging package included a DOP350L dredge pump which has a mixture pumping capacity of 2.400 m3/h as well as the diesel hydraulic power pack which drives the DOP submersible dredge pump, plus the hoisting winch. This winch enables the DOP submersible dredge pump to be lowered on a cable to a dredging depth of -35 m. Moreover, a jetwater pump unit was delivered for supplying the DOP’s suction head with pressurised water. For all pumps suction and discharge piping was delivered for a swift start up.

The modularly constructed DOP dredger furthermore included a standard Damen operator cabin, an A-frame for lowering the DOP pump plus the wires and sheaves to do so, as well as dredging instrumentation. On deck a separate unit is located housing flow and density meter, which gives the operator a clear view of the dredging process.

On deck the production measurement unit is integrated in the discharge piping

On deck the production measurement unit is integrated in the discharge piping

The DOP dredger 350L was commissioned in February by Damen Field Service Engineers. The dredger has started its extensive job at an impressive location.

VIEWERS CAN SEE A VIDEO SHOWING THE DOP IN ACTION IN THIS PROJECT: https://youtu.be/UlqvF0Xq_QM

About Damen Dredging Equipment:

Damen Dredging Equipment is a specialised supplier of dredging equipment and dredging instrumentation & automation. Fully owned by Damen Shipyards Group and based in Nijkerk, the Netherlands, the company has over 75 years of experience in the construction of dredging equipment serving the worldwide dredging industry. The dredging tools are all built to specific customer requirements, making use of a wide range of standard equipment.

All components were of limited size for practical transport and assembly on site

All components were of limited size for practical transport and assembly on site

More information can be found on www.damendredging.com

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