This foundation will support a bearing wall tower to about 670 meters where it transitions into a closed silo spire. The design calls for 270 1.5 and 1.8-meter diameter piles with a differential settlement goal of 25 mm. The foundation will have to handle a gravity load in excess of 860,000 tons at a pressure of 2.65 Mpa. ![]() The subsurface beneath the foundation of Jeddah Tower. Finally, below all of this is a sandstone layer as far as 200 meters. Next comes a poorly constituted sandstone layer about 35 to 50 meters thick, followed by another 3 to 9-meter gravel layer. The next 40 to 50 meters is coralline limestone, followed by a 2 to 10-meter thick mudstone/gravel layer. The first layer, varying from half a meter to 2 meters thick consists of silty sand. At the site of the Jeddah Tower, there exist five distinct subsurface layers. In order to build a stable building to such a massive height, a deep understanding of the subsurface is needed. Located on the Red Sea, the development of the Jeddah Tower has been a challenge from day one. Along with Jeddah Economic City, a new airport and other infrastructure are being built in the area to replace the current existing crumbling infrastructure. Currently, Saudi Arabia is heavily reliant upon oil revenues but is looking to diversify its economy by improving infrastructure and exploring other industries. An estimated 900 new homes a day are needed to meet the growing demand of a population that has quadrupled in the past four decades. However, Saudi Arabia is in the midst of a cycle of high population growth and short housing supply. The builders will not reveal the exact height until after construction is completed.Īt first glance, a $20 billion development project featuring the world’s tallest building might seem superfluous. Although originally designed to be over a mile high, it has since been reduced in height to over one kilometer. Designed in a three wing style similar to the other recent mega-skyscrapers, its designers have called it the Burj Kalifa (Dubai) taken to its natural conclusion. Jeddah Tower is being constructed first, with a price tag of $1.2 - 1.5 billion. This ultramodern district with an estimated cost of $20 billion will feature both commercial and residential development, including homes, hotels and offices. ![]() It will be the centerpiece of a 5.2 square km plot 20 km north of Jeddah, called Jeddah Economic City. Jeddah Tower will have three wings to help stabilize wind load.
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