Xbloc - Effective ware protection for breakwaters and shores

Breakwater Port of Poti, Georgia

Port of Poti has a long history as the gateway of the Caucasus and Central Asia. It has been an important link in the legendary Silk Route, which will be restored in the coming years.

The main breakwater of Port of Poti dates back to 1873. Today it has a length of 1800 m and is covered by concrete cubes. A major part of the main breakwater has been rehabilitated with 2 m3 Xblocs. The existing concrete cube armour layer has been covered by an inverted granular filter structure on top of which the Xbloc armour and filter layers has been placed. The wide crest of the breakwater has been covered with Xbase units.

Project Milestones

March 2004: Model tests at Delft Hydraulics
December 2004: Model testing of modified crest detail at CSIR
March 2007: Start of casting
October 2007: 1000 Xbase units produced
October 2007: 4000 Xbloc units produced
June 2008: Start of placement
November 2008: First phase breakwater rehabilitation completed

Project Details

Hs: 5.0 m
Length of breakwater: 1.8 km
Size of Xblocs: 2 and 3 m3
Number of units: 7,000

Project videos

Project pictures

  • Xbloc placement Port of Poti
  • Xbase crest elements Port of Poti
  • Xbloc breakwater Port of Poti
  • Xbloc casting Port of Poti
  • Overview Xbloc Breakwater Poti
  • Xbloc storage Port of Poti
  • Xbloc breakwater Port of Poti one year after completion
  • Xbloc breakwater Port of Poti, November 2009
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