Palm Jumeira - Vehicular Tunnel
Among the landmark projects currently under development in Dubai, none has been more eye-catching and newsworthy than the Palm Islands, widely stated to be the eighth wonder of the world. The Palm Jumeirah is a man-made island about 5 km in diameter covering an area of 600 hectares.
To build the project under dry conditions, the project required the construction of a sheet-piled cofferdam. The construction sequence was to dredge, form the dike, install sheet piles, and drain the cofferdam. A total of 920,000 cu.m of earthwork was used to form the dikes. Sheet piles were installed to cut off seepage into the cofferdam.
ACTION International Services dewatered seawater trapped within the cofferdam in only 45 days in preparation for the construction. ACTION engineered a temporary variable speed pumping solution to ensure works were carried out within the tight project schedule.