World Trade Centre Residence taking shape after demolition

After a high profile demolition in April this year, the last traces of Dubai’s World Trade Centre Hotel have now been removed. Construction Week reports on the progress of the site as it begins its transformation into a modern luxury residential development.

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By  Colin Foreman Published  July 16, 2005

World Trade Centre Residence taking shape after demolition|~|WTC-Residences200.jpg|~|Once the clear-up was completed, the site was left just below ground level to enable the pile caps to be removed. |~|After 200 kg of explosives demolished Dubai’s World Trade Centre on 1st April, around 48 000 m3 of rubble had to be removed from the site — and quickly. Controlled Demolitions, working round the clock with local sub contractor Al Rashid, managed to complete the clearance operation in just over a month. “In just 33 days, 2400 truck loads of rubble, each truck containing 20 m3, were removed, accounting for the demolished sub-surface foundations, pile caps, and the foundations for elevators and stair towers,” says Roger Softly, project manager, Turner Construction International. Tracked excavators, breakers and wheel loaders were all deployed on the job to break up material and load it onto the awaiting trucks. Any salvageable material, such as steel, was removed by separate salvage crews. The work was scheduled so that breaking and sorting occurred during the night and trucks moved the material out during the day. Even though it is a very central site in what can be one of the busiest areas of Dubai, the removal of material progressed well with little interruption. “It really went very smoothly,” says Softly. “Sometimes more than 100 trucks were filled in one day — it was basically non-stop ,” he adds. The material was taken to a Dubai Municipality-approved tip. Once the clear up operation was complete, the site was left a little below ground level. “The site is about 2 m above sea level, so they left the site about 0.5 m above sea level because the pile caps had to be removed,” explains Softly. During the clear-up, the construction managers, Turner Construction International, sent the contract for the dewatering, excavation, removal of existing piles, shoring works and piling works out for tender. Swissboring was the successful contractor and began these works on 28th May, and is currently installing the dewatering wells. The excavation has gone down to a working platform depth of minus 2 m. The excavation is for the two basement levels, which will provide parking for the new residential towers. The piling work will be completed by August, allowing work on the superstructure to begin in September. The excavation will be dug down to two levels, because the building raft varies in thickness. The raft will be 2 m thick underneath the towers, and 600 mm thick beneath the podium. Upon completion of its contract, Swissboring will leave the dewatering installation in place and the superstructure contractor will come in and begin work on the main development. These works will start with the casting of the raft, and once the basement is waterproofed it can be backfilled and the retention system can be distressed. By early September the superstructure is expected to rise from the site. “We should see the structure of the World Trade Centre Residence visibly taking shape as early as mid-September, and the building frame should be clearly visible above ground level in October.” The tenders for these works are currently out to contractors after the pre-qualification process was completed in the first week of June. “We expect to make an award so that work can commence in early September,” says Softly. Other contracts in the tender process are the MEP package, which will be awarded at about the same time as the superstructure contract, as well as the contracts to supply the elevators and cladding. The latter two are out to tender early because of the long lead times involved when procuring these products. The cladding is likely to be a unitised system so that it can be installed more quickly. Designed by Jung Brannen and Associations Inc. from Boston, the two buildings abut each other in an L-shaped configuration. The two towers share four levels, two basement levels and a lower and upper ground floor. The final heights of the towers will differ with one reaching 30 storeys and the other 40 storeys. Managed by Jumeirah International the buildings will have a range of facilities, including a landscaped roof top and terrace, a fully equipped gym and health club, and swimming pool. The rooftop will be home to the World Trade Centre Residence Club. To meet increasing demand for residential units on Sheikh Zayed road, the number of apartments available was recently increased from 350 to 378. ||**||

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