Coastal Engineering and Reclamation of Palm Island Dubai

Introduction to Marine Land Reclamation

The Palm Jumeirah in Dubai is one of the largest man-made land reclamation projects in history. Reclaiming land from the Persian Gulf required advanced coastal engineering, geoinformatics, and marine construction methodologies, as the structure had to withstand wave action, seismic forces, and long-term settlement.

Dredging and Vibroflotation

Unlike many land reclamation projects that use concrete piles or steel sheet piles, the Palm Jumeirah was constructed using only sand and rock. Dredging vessels extracted sand from the deep seabed and sprayed it onto the shallow reclamation area using a process called “rainbowing.”

To prevent liquefaction during earthquakes and ensure structural stability for heavy buildings, the loose sand had to be compacted. Engineers utilized vibroflotation, a technique where vibrating probes are inserted into the ground to reorganize sand particles into a dense state, reducing the voids and preventing settlement.

Breakwater Construction

To protect the reclaimed island from waves and storm surges, a massive crescent-shaped breakwater was constructed. The breakwater consists of a core of sand wrapped in a layer of geotextile membrane, covered by progressively larger armor rocks, and capped with large concrete blocks. A opening was designed in the breakwater to allow natural tidal currents to flush water through the palm leaves, preventing stagnation.