24/12/2025
📸 أحد أكبر منصات البترول في العالم 🌊
منصة ترول (A): هي عبارة عن منصة غاز طبيعي في حقل ترول للغاز قبالة الساحل الغربي للنرويج. 🇳🇴
إنه أطول وأثقل هيكل تم نقله إلى موضع آخر بعد بنائه، بالنسبة إلى سطح الأرض ، وهو من بين أكبر المشاريع الهندسية وأكثرها تعقيدًا في التاريخ.
كانت المنصة بمثابة ضجة متلفزة عندما تم نقل الى بحر الشمال في عام 1996 ،
يبلغ ارتفاع منصة Troll A الإجمالية 472 متراً ، ويزن 683.600 طن وتتميز بكونها أطول وأثقل هيكل نقلته البشرية على الإطلاق. تقف المنصة في قاع البحر 303 متر تحت سطح البحر وواحدة من الأرجل الأسطوانية بها مصعد يستغرق مدة من 9 دقائق للانتقال من المنصة إلى قاع البحر.
The Largest Structure Ever | Troll A
"The biggest and heaviest structure ever moved by man''.
The Troll A Platform is an offshore natural gas platform at the Troll gas field on the west coast of Norway.
"Troll A – The Tallest Structure Ever Moved by Mankind
Located about 80 km off the west coast of Norway is Troll A, a colossal natural gas platform and the tallest structure ever moved by mankind. It’s construction is regarded as one of the largest and most complex engineering projects in history.
Operated by Statoil, the platform was towed over 200 km, from the village of Vats to the North Sea in 1996, where the event was a televised sensation in Norway.
The Troll A platform has an overall height of 472 metres (1,549 ft) and weighs 683,600 tons (1.2 million tons with ballast). The platform stands on the sea floor 303 metres (994 feet) below the surface of the sea and one of the continuous-slip-formed concrete cylindrical legs (the leg containing the import and export risers) has an elevator that takes over nine minutes to travel from the platform above the waves to the sea floor.
The walls of Troll A’s legs are over 1 metre thick, made of steel reinforced concrete formed in one continuous pour (slip forming) and each is a mathematically joined composite of several conical cylinders that flares out smoothly to greater diameters at both the top and bottom. The concrete legs must be able to withstand intense pressure so are built using a continuous flow of concrete, a lengthy process that takes 20 minutes per 5 cm laid. [source]
Troll A was built by Norwegian Contractors for Norske Shell, with base construction beginning in July 1991 at a cost of $650 million USD. The base and the deck were built separately, and were joined in 1995 while the base was partially submerged. The base is a Condeep gravity base structure built from reinforced concrete. The Troll platform was towed over 200 kilometres from Vats, in the northern part of Rogaland, to the Troll field, 80 kilometres (50 mi) north-west of Bergen. The tow took seven days."
