The Punaise Underwater Dredger

Kris Visser, Per Bruun

Abstract


The latest decades have experienced a continued progress in dredging fields by which equipment already in use has been improved. That includes machinery, pumps, pipes, controls, maneuvering and propulsion equipment etc. New inventions like water-injection dredgers, underwater pumps, and crawl cats have entered the market. This brief article addresses the use of the PinPoint Dredging or Punaise System, which was developed and tested in The Netherlands.


Keywords


Dredging; dredger; underwater pump; bypassing; fluidization

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