Semi-submersible floating structure - bearing

 

(57) Abstract:

The invention relates to the field of shipbuilding, namely the semi-submersible floating structures. Semi-submersible floating structure - a support in the form of a vertical cylinder contains concrete alastruey the base block, with a retractable connectors and cables attached thereto the lower ends. The cables provide a vertical connection with the established on the Foundation block and forming an inner cavity concrete blocks in the form of cylindrical rings with bolasterone cavities. Between the blocks are made of horizontal and vertical waterproofing. Achieved the creation of multi-deepwater, semi-submersible floating structure with cavities for placement of various technologies necessary for work in deep-water conditions, or construction of an island type. 6 Il.

The invention relates to the field of shipbuilding, namely poliogenys floating structures, and can be used in deep-water conditions for various purposes:

an offshore drilling platform,

support for communication,

artificial island construction type (ISOT),

As a drilling platform, it simplifies the process of exploration, extends the search for offshore oil and gas, provides efficient reliable operation of wells at depths of 300 meters, where you can not install a modern drilling platforms. The use of reinforced concrete provides a dynamic stabilization and proper resistance to external loads.

Design, equipped with propulsion systems may move independently and can be installed in a specific location areas and to serve as a support: bridge, pipeline, power lines, etc.

As a basic construction element of this design enables the construction in the shortest possible time artificial constructions island type (ISAT) for securing boats for different purposes.

Given the specific characteristics of the construction, the possibility of installing special equipment, it can be used for search and recovery of sunken objects.

Reinforced concrete massive body can be used as a sarcophagus, in the inner cavity can accommodate containers of radioactive and the P CLASS="ptx2">

Known semi-submersible floating structure-a support including a vertical reinforced concrete cylinder with bolasterone cavities and retractable support (see U.S. patent 3630161, class B 63 B 35/44, publ. 28.12.71).

Known construction does not provide work in deep-water conditions and placement of the required technologies envisaged by the proposed design.

The technical result of the invention is the creation of multi-deepwater, semi-submersible floating structure with cavities for placement technology for various purposes, required to work in deep-water conditions, or construction of an island type.

It is achieved by the fact that the construction consists of reinforced concrete elements in the form of cylindrical rings with ballisticheskimi sides. The outer diameter of the rings is 80-100 m, inner diameter may be equal to half the outer diameter. The height of the rings 10-12 m Reference bottom block is made in the form of a flat circular element with bolasterone sides. It is equipped with retractable supports, such as screw piles, providing installation structure in a vertical position in terms of the bottom corners. To pornasia rings one on top of another.

In Fig. 1 schematically presents the proposed construction, operating position, General view; Fig. 2 - bearing bottom block of Fig. 3 - section a-a in Fig. 2; Fig. 4 is a cylindrical ring of Fig. 5 - cross section a-a in Fig. 4; Fig. 6 - node I in Fig. 1.

The structure-bearing anchor bottom unit 1 with bolasterone cavities 2, which is provided with retractable legs 3, for example, in the form of a helical pile. The supporting bottom unit 1 attached cables 4, the upper ends of which are above the water surface, for example attached to the boats.

On the base bottom unit 1 is installed in a known manner the blocks 5 in the form of cylindrical rings with bolasterone cavities 6.

The structural elements are connected by cables 4 and mounts, for example, in the form of coupled railway carriages.

After the liberation of the internal cavity 7 and ballasteros cavities 6 and 2 from water design acquires a certain buoyancy.

The movement of the structure, its positioning is facilitated by a propulsion complexes 8, having the ability to turn in any desired direction.

Horizontal waterproofing of joints 9 between blocks 5 PR is Alami, for example, synthetic resins, asphaltic materials, emulsions, wood inserts, etc.

For drainage grooves 10 are provided with vertical holes 11.

Vertical waterproofing is performed in a known manner, for example, from metal sheets 12 using known methods of corrosion protection.

The structure-bearing, made of reinforced concrete in the form of a hollow cylinder with a height of 300 m, the outer diameter of 80-100 m and an internal diameter of the outer half has more buoyancy zero, has a stable vertical stability irrespective of fluctuations in sea level, impacts, waves and ice.

Semi-submersible floating structure - a support including a vertical reinforced concrete cylinder with bolasterone cavities and retractable supports, characterized in that it contains alastruey bottom support block that has mentioned a sliding bearing, and vertical concrete cylinder formed by the blocks in the form of cylindrical rings with bolasterone cavities installed on ballasteros supporting the bottom block and connected with him through the ropes, fastened their lower ends to this block, and between b

 

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