Case Histories

DRAGFLOW PROVIDES EQUIPMENT FOR PIER EXTENSION PROJECT IN BRAZIL

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Project Details

  • Location: Brazil
  • Year: 2017

Project Description

Project Details

Location: Brazil

Year: 2017

Project Description

Iapoá City sea port - pier extension project.

The foundation layout was composed by no. 90 drilled piles, 25m long and 100cm external diameter, which have been drilled 15-meter deep into the sea bed.

Before injecting concrete, the construction company needed to remove the sludge (sand with organic material) remained inside the tubes.

The Problem

The customer started the project removing mechanically the material inside the drilled piles.

The cleaning operation was taking one day and a half for each pile and that was delaying the project schedule.

The client was looking for a solution to speed up this cleaning process.

Our Solution

The customer after consulting Dragflow Brazilian distributor purchased a EL12,5SS pump to dredge out the material from the piles.

The Dragflow pump was equipped with a high pressure jet-ring system (7 bar pressure) fed by an external water pump.

The direction of the water jets of the ring were alternate vertical and 45° degree to clean up efficiently also the sludge stacked on the pile walls.

Injecting water inside the tube was also necessary to replace the water removed by the EL12,5SS and to keep high the water level inside the tube allowing in this way the use of a small dredging pump working with a low TDH.

The result has been a success as using the EL12,5SS the customer has been able to remove the solid inside each pile in just 25 minutes.


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