3. palm jumeirah final

know about palm jumeirah

1. Palm Jumeirah Prepared by: Sanjoy Das Adib Ashhab Ankon Md. Tajkir Musaddik

2. Palm Islands Palm islands consist of three artificial islands – P alm Jumeirah (completed) P alm Jebel Ali (under construction) P alm Deira (proposed)

3. About Palm Jumeirah Palm Jumeirah is located on the coast of Dubai, United Arab Emirates. It is developed from the theme of Dubai’s national tree Palm. It   consists of a tree trunk, a crown with 16 fronds, and a surrounding crescent island that forms an 11 kilometer-long breakwater.

4. CONSTRUCTION Construction on the palm islands began in June 2001 . Sand dredged from the bottom of the  Persian Gulf  by the Belgian company  Jan De Nul  and the Dutch company  Van Oord . Divers surveyed the seabed and workers constructed a crescent-shaped breakwater from blasted mountain rock. The sand is sprayed from dredging ships, guided by a (DGPS) to plot the palm and ensure the sand placement within 0.39 of an inch. Sand dredged from the bottom of the Persian Gulf  Using DGPS

5. CONSTRUCTION The spraying process is known as  rainbowing . 3.25 billion cubic feet of ocean sand vibro -compacted into place. The Crescent of Palm Jumeirah stands a little more than 13 feet above low tide sea level. Sand, covered by an erosion-preventing water-permeable geo-textile. One-ton rocks cover the sand, and two layers of large rocks weighing up to six tons each cap the structure. The breakwater also has two 328-feet openings on each side to eliminate stagnation in the 16 narrow deep channels. Rainbowing . Using rocks

6. Construction resources involved 5.5 million cubic meters of rock brought from over 16 quarries in Dubai. 210 million cubic metres of rock,sand and limestone. 94 million cubic meters of sand brought from deep sea beds 6 nautical miles from the coast of Dubai. Use of rock Use of sand

7. Area covered by Palm Jumeirah The island itself is 5.72 km². It adds a total of 520 kilometers of non-public beaches to the city of Dubai. It adds 78 kilometers to the Dubai coastline. The island costs an estimated $12bn to build. 

8. Structural importance Palm Jumeirah was built entirely from sand and rocks which is a wonder of modern engineering. Recover the revenue of oil and make a tourist attraction .

9. Residential units & Hotels  The developers handover the first residential units in 2006. In October 2007, the Palm Jumeirah had already become the world's largest artificial island. By the end of 2009, 28 hotels were opened on the Crescent. Residential units Hotel Atlantis

10. Project risks and threats Waves 2 meters high. Storm frequency of 1 in 1 year. Earthquakes from 6 to 7 on the Richter scale. Weak soil Water pollution.

11. Hidden problems Erosion(caused by winds and water currents). Damage to the marine ecology (the loss of reefs and fish) Loss of coastal shape along the seashore of Dubai. Erosion Damage to the marine ecology

12. Obstacles after the island construction Installation of utilities and pipelines were very difficult and laborious.

13. Risk Mitigation Wave blockers. Dredging (the sand from the dredging ships was sprayed on to the land). GPS. Monitored and checked the proper alignment and placement of rocks to maintain the construction. Anti Liquefaction process ( Vibro -compaction technique) Wave blockers Dredging

14. Environmental concerns C hanges to area wildlife, coastal erosion, alongshore sediment transport and wave patterns. Suffocated and injured local marine fauna and reduced the amount of sunlight which filters down to seashore vegetation. Change in erosion patterns along the UAE coast . For these reasons, Greenpeace and   Mongabay has criticized the Palm Islands for lack of sustainability.

15. References "The Palm Jebel Ali (Palm Islands, Dubai) - Property Development“. "Dubai's Palm and World Islands - progress update". "Environmental Impacts of Palm Islands". Dubai's Artificial World Islands Are Killing Corals and Pushing Nature Out of the Sea". Dubai's artificial islands have high environmental cost“, Mongabay.com "YouTube - The Palm Island, Dubai UAE - Mega structure Development". youtube.com. "Construction of the Islands - The Impact of the Palm Islands, United Arab Emirates". google.com. How Stuff Works "Palm Island Construction".