The grand structure of mankind (20 pics + 3 videos) Bashny.Net

Man built megasooruzhenie oil and gas industry - gas platform Troll-A.
This is one of the world's largest gas platforms, the giant North Sea.
Within this structure is hidden a lot of innovation to prevent catastrophe.
This building is not only a magnificent engineering marvel, but also the largest object ever moved by man on the Earth's surface.



 







For the stability of half of the platform was flooded but remained above the water often produces a strong impression. Then a few tugs for 7 days Troll transported to the place of its future operation.



Typically, the support platform is transported separately and then - supported by special ships are set in place. If Troll-A, however, the entire platform has been collected in one location and then moved to the sea. The platform was towed more than 200 kilometers from Watsa in the northern region of Rogaland, in the Troll field, 80 kilometers northwest of Bergen. Towing took seven days.



The platform stands on the seabed 303 meters below the sea surface. In one concrete cylindrical supports have an elevator, which is nine minutes gives workers and technical personnel to the seabed. Troll wall supports more than 1 meter thick made of steel reinforced concrete formed in one continuous stream. The four pillars joined by reinforced concrete box that connects them, which has a special function damping unwanted resonances from the potentially devastating earthquakes and waves. Each leg is also divided along its length by independent watertight compartments. Use a group of six 40-meter vacuum anchors holding the installation on the seabed.



























In 1996, the platform has established mirovoyrekord got into Guinness Book of Records as "the largest offshore gas platform." That title now belongs to the Petronius Platform in the Gulf of Mexico, which rises to 610 meters above the ocean floor. For comparison, the dimensions of the platform and the famous sights of Paris, the Eiffel Tower:



Source: grandstroy.blogspot.ru, www.youtube.com