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
FIELD: shipbuilding; manufacture of mobile research complexes.
SUBSTANCE: proposed complex is made in form of ship with small waterplane area having upper and lower hulls interconnected by means of telescopic columns for disconnection and autonomous motion of these hulls. Lower hull is submersible vehicle and upper hull is amphibian. Both hulls are provided with greenhouses and power units for generation of energy for motion of complex, domestic and technological purposes, as well as for growing vegetables, sea products and production of distilling water by motion of spheres with plant containers located spirally on their surfaces, thus ensuring generation of electric power. In addition to vegetation tubes with plants growing chains are provided where sea products are contained for distilling sea water by change in pressure and level of illumination and growing chains for growing fish and preparation of nutrient solution for plants. Lower hull is provided with plankton trawls for delivery of plankton for greenhouse and power plants of lower and upper hulls for growing fish and sea products. Amphibian supplies fresh air to submersible vehicle through its collector; it is also used for transportation of sections for erection of scientific research station. Provision is made for delivery of light to submersible vehicle through lenses, light conduits and structural sections and light conduits of collector of vehicle.
EFFECT: environment control.
4 cl, 22 dwg
FIELD: well drilling and hydrocarbon production equipment; performing operations in running underwater wells.
SUBSTANCE: tanker carries equipment on its deck for performing operations in underwater well which is dynamically positioned above subsea riser running from underwater well. Equipment is connected with subsea riser for performing non-rotary drilling at reduced hydrostatic pressure in well bore. Multi-phase mixture thus formed is divided on tanker and separated liquid hydrocarbons are stored in tanker storage tanks. Equipment for performing operations in underwater well may be mounted on superstructure above main deck. Equipment for non-rotary drilling in well bore at reduced hydrostatic pressure may be provided with spooled tubes and may be mounted near drill ship well located above subsea riser of well to which said equipment is to be connected or near mobile platform which may be shifted to outside position above subsea riser of well.
EFFECT: possibility of performing drilling operations without putting well out of operation.
5 cl, 5 dwg
FIELD: electric power engineering; windmill power generating plants.
SUBSTANCE: proposed floating coastal wind-operated truss is made in form of multi-link floating semi-submersible detachable structure forming one extended chain. One link consists of truss-pontoon (1) formed by two polygonal figures-pontoons (2,2') and tetragonal figure-pontoon (5-6-5'-6'). In vertices of figures (2,2'), in separate points of longer sides of figure (5-6-5'-6') and in their centers there are angular (3,3'), linear (7) and central (8,8') displacement-type truncated pyramids-floats with their vertices downward. They are connected with one another by means of hollow radial (10), bracing and inter-brace stiffening members. Mounted on angular (3,3') and linear (7) pyramids-floats on bearing shoes (20) of wind-operated turbine (21) are rotating electrical generators. Above-water platform with superstructure is supported by stiffening members and pyramid-float of figure (5-6-5'-6') by means of cylindrical supports. Arranged in pyramids-floats (8,8') and in their hermetic recesses and in superstructure is technological equipment connected with shore power system by means of underwater cable. Submergence of truss-pontoon (1) is performed by admitting sea water into ballast cavities of pyramids-floats (3,3', 7, 8, 8') through their kingston valves by gravity. For surfacing of truss-pontoon (1), use is made of ballast drainage system which consists of drainage pumps of pyramids-floats (8,8'), drainage ejectors of pyramid-floats (3,3' and 7) of discharge kingston valves and connecting pipe lines with fittings. For positioning the wind-operated truss and weighing the anchor, use is made of windlasses with anchor sprockets mounted on deck of each linear (7) and angular (3,3') pyramid-float in hermetic recess. Hermetic cavities of all pyramids-floats (3,3',7,8,8') are brought into communication through hollow stiffening members and internal hatches, access holes and apertures.
EFFECT: increased total power of plant; improved operating characteristics and maintainability.
3 cl, 12 dwg
FIELD: floating platforms for marine structures and raising of sunken vessels.
SUBSTANCE: proposed floating platform has floating hull with engine and propulsion plant and cargo-hoisting equipment and at least one self-contained lower module which is made in form of submarine and is rigidly connected with floating hull by means of joint complex including longitudinal slot made in floating hull bottom; said module is received by this slot; joint complex is also provided with articulation grips and diagonal rods with attachment unit for securing to floating hull and to module. Floating hull is reinforced by longitudinal and transversal arch-shaped structures located on its deck and provided with watertight bearing struts.
EFFECT: extended functional capabilities; enhanced efficiency.
FIELD: polar stations adaptable for extended drift in waters coated with ice cover.
SUBSTANCE: proposed drifting station has cylindrical hull with transformable domestic compartment with dome-shaped roof located above upper surface of ice and ballast reservoir located in under-ice part of hull. Located between domestic compartment and ballast reservoir in center portion of station hull are bio-energetic unit and rigidity ring made from interconnected reactors filled with water. Compartments of station are interconnected by means of lift trunk.
EFFECT: enhanced endurance; protracted time of operation of drifting station in autonomous mode.
6 cl, 6 dwg
FIELD: shipbuilding; building of pontoon ferries.
SUBSTANCE: proposed water craft consists of pontoons fastened together. Pontoons are provided with screen framework secured on hull along water surface embracing the bottom portion of hull. Part of framework is made in form of sections of pyramidal form.
EFFECT: enhanced operational reliability in winter periods.
FIELD: shipbuilding; building of floating structures.
SUBSTANCE: proposed floating structure has hull with supporting bearing mounted in its outer recess; this bearing is connected with supporting piles by means of chains. Displacement part of structure hull is divided by inner radial bulkheads; mounted on one of these bulkheads is engine whose shaft with propeller is brought out to open recess. Besides that, floating structure is provided with flying bridge and floating landing stage.
EFFECT: possibility of forming mobile floating structure rotating around its axis.
4 cl, 10 dwg
FIELD: shipbuilding; building floating structures, restaurants, for example.
SUBSTANCE: proposed floating structure includes round hull, decks, deck structure, pillars supporting second deck and roof. Floating structure has two identical halves interconnected in round hull. Lower round parts of floating structure is provided with port lights located above waterline. Identical halves have radial circular watertight bulkheads and watertight doors. Bottoms of each half have mating symmetrical half-bowls located in central part on the outer side and separated by spacer laid between them. Said half-bowls have blind threaded holes for securing plate with supporting bearing and chains holding the structure center in required point of water basin. Mating halves of floating structure have threaded holes with diameter exceeding diameter of fastening bolts; they are provided with double amount of watertight threaded plugs; thread of plugs correspond to thread of holes in structure halves. Pillars supporting the second deck and roof are provided with casings with unfolding curtains and locks securing them to decks.
EFFECT: reduction of scope of assembly jobs; possibility of towing floating structure through sea locks.
2 cl, 10 dwg
FIELD: drilling, particularly underwater drilling.
SUBSTANCE: method involves towing and installing floated support hollow structure so that barge passes in the support structure and provides drilling, wherein the support structure is located below water surface to provide barge having pontoons passage over the structure and the structure is provided with at least four posts with conical tips located out of structure contour so that the conical tips project above water surface; mounting derrick on the barge provided with remote holders with orifices spaced apart a distance equal to corresponding distances between above posts; directing the barge relative the support structure by aligning holder orifices with posts; filling pontoons with water to put the barge on the support structure; lifting barge with derrick by removing water from pontoons after drilling operation finishing so that holders are separated from the posts and removing the barge out of the support structure; arranging another barge provided with production equipment, pontoons and remote holders with orifices over the support structure and putting the barge on the support structure.
EFFECT: extended functional capabilities.
4 cl, 7 dwg
FIELD: drilling technology; marine drilling plants for drilling and production of oil and gas in coastal shelf.
SUBSTANCE: proposed marine drilling complex includes group of floating modules with pontoons and portal with drilling unit and tower and connecting lines. One module is movable and may be towed and coupled with other modules in turn which are stationary in their construction and are provided with well for drilling holes; portal with drilling unit and tower with connecting lines, living module, power unit, production equipment with storehouses and hinged bridge are mounted on movable module. Modules and bridge are provided with rail tracks which may be connected for motion of portal with drilling unit from movable module to stationary one.
EFFECT: enhanced economical efficiency of marine drilling complex.
7 cl, 7 dwg