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7695215 |
Method and system for broadcast sediment capping
Sub-aquatic sediment is covered with capping material by a capping system comprising a template barge and a spreader barge. While the spreader barge is distributing capping material, the template...
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6497535 |
Material distribution vessel and method for distributing material recovered in a dredging operation
A material distribution vessel for distributing material recovered in a dredging operation is disclosed. The material distribution vessel includes a hull; a propulsion system for selectively moving...
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6443660 |
Method and system for manipulating an object located underwater
An apparatus for manipulating an object located proximate an underwater floor is disclosed, in a preferred embodiment comprising a foundation implantable in the underwater floor; a lifting frame...
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5286425 |
Method of installing a cementitious composition
A method of installing a cementitious composition includes providing a dry fast setting cementitious composition having a set time and in the form of finely divided particles of at least one cement...
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5222839 |
Method and apparatus for underwater reclamation
An improved method for underwater reclamation is disclosed. Dredged mud sent under pressure by an earth and sand conveying device is treated with solidifying material, and before it is solidified,...
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5205646 |
Method for conveyance of cement under water to form concrete
This invention relates to the conveyance of cement under water to form concrete. The method claimed utilizes, inter alia, a positive displacement pump and feed pipe to convey unreacted cement,...
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5108790 |
Methods of applying compositions of no mix compounds
Dry cementitious compositions and packages and methods for their application. The dry compositions do not have to be mixed with water but instead are poured, sprayed or troweled onto a substrate...
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5088858 |
Method and apparatus for constructing a column-shaped marine structure and structure produced thereby
A method of constructing a column-like marine structure including the steps of constructing and placing an assembly of floats in a dry area, placing on the float assembly a column base having its...
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5076732 |
Method for the construction of concrete shafts for a platform or similar structure and a section for similar use
Procedure for the construction of a concrete shaft for a platform or similar structure, where one of several of the shafts will be outfitted with relatively much equipment. The shafts are...
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4923335 |
Process and device for the production of a marine engineering structure, such as a pier, jetty and the like
The invention relates to a process and a floating apparatus (1, 2, 18) for the construction of columnlike elements (16, 17), forming part of a pier, a jetty or the like marine structure, in which a...
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4923334 |
Lost casing for constructing a rigid structure upon the bottom of a body of water
This invention is a method and casing (1) for constructing a rigid structure upon the bottom of the water. The casing to be used is a lost pillar casing of particular shape. It is larger at the...
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4824290 |
Method of constructing a rigid structure upon the bottom of a water as well as lost casing for performing said method
This invention is a method and casing (1) for constructing a rigid structure upon the bottom of the water. The casing to be used is a lost pillar casing of particular shape. It is larger at the...
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4804297 |
Method of underwater casting
A method of formless underwater casting of cement is disclosed. The method involves the addition of silicate to water in which a structure bound with Portland cement or high-alumina cement is to be...
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4778308 |
Arrangement in an offshore concrete platform
Arrangement in an offshore concrete platform comprising a base structure (1) and at least one tower structure (3) having a tower foot (5). The tower foot (5) is supported by a pair of annular,...
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4767240 |
Pile-framed structure
An underwater pile-framed structure comprises a plurality of upright piles 11 arranged in two parallel and spaced rows, reinforcing cages 13 surrounding the piles in peripherally spaced...
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4759663 |
Method of placing concrete into a steel encasement
A method of placing concrete into a steel encasement constructing an offshore structure. The steel encasement is erected. A plurality of first concrete injection holes are formed through the steel...
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4749309 |
Offshore platform structure of reinforced concrete and a method of producing same
An offshore platform structure of reinforced concrete for standing on the bottom of a sea as a consequence of its own weight. The structure includes a base supporting a tower for a platform deck....
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4747878 |
Compositions and methods of making no mix cements
Dry cementitious compositions and methods for their application. The dry compositions do not have to be mixed with water but instead are poured, sprayed or troweled onto a substrate which contains...
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4743301 |
Concrete composition for underwater use
A concrete composition for underwater use contains about 0.1 to 4% by weight based on cement content of a water soluble vinyl polymer containing vinyl units having sulfonic groups. The concrete...
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4741648 |
Offshore platform structure having at least a superstructure and a substructure made of reinforced concrete, and slipforming means for slipforming supporting columns of such structure
Slipforming means intended for slipforming inclined, hollow columns of reinforced concrete, comprising a slipform platform (14) including the form work (28, 29), which is supported by and may be...
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4704052 |
Foundation and method for improving the resistance to sliding of civil engineering structures
A foundation for a retaining wall-type of structure acted upon by a principal force tending to slide same in a predetermined direction is anchored by a plurality of slide resisting walls. The slide...
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4664556 |
Method for building structures in water
A method of construction is provided in which a casing or assemblage of casings which can be handled as a unit is partly immersed in water to a controlled variable depth and used to mould a...
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4643617 |
Method of creating offshore seabed mound
A seabed mound creating method suitable for a construction of a large scale offshore structure comprises the steps of setting up a plurality of sheet piles along the outer periphery of a mound...
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4606676 |
Manufacture of articles
A method of manufacturing articles in which the articles are partially fabricated in a work area which is in portion of a buoyant platform and at least partially below the level of water within...
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4527926 |
Method for building a protective wall when constructing an underwater base
An underwater construction which includes a concrete base slab and a protective wall. The lower end of the protective wall remains somewhat in the concrete cast of the base slab. The protective...
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4487526 |
Method of and structure for erecting an artificial island
An artificial island located on the high sea is formed of a support structure and a platform mounted on the upper end of the support structure. During erection, the support structure, not completed...
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4482273 |
Process of casting or repairing concrete under water
The present invention relates to a process of casting of repairing concrete under water whereby the concrete (mortar) to be cast to a minimum extent contacts water and leaching of the binding agent...
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4480944 |
Offshore drilling of large diameter holes in rock formations
A drilling rig comprises a platform (10) supported above a sea surface (14) by legs which extend to the sea bottom (16). A drill guide (30) of rigid open framework construction extends down from...
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4468156 |
Underwater structure and method for its construction
The invention relates to a method of constructing a free standing structure in a body of water, comprising the steps of attaching an impervious membrane to a floating formwork, filling the membrane...
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4448570 |
Method of constructing a concrete off-shore structure more than 200 m high stabilized on the sea bed by its own weight
The structure is made in several "storeys" (D1, D2, D3). These are floated away from their construction site in conventional manner. Once in sufficiently deep water, the storeys are tilted over so...
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4443131 |
Method for constructing an offshore platform structure having a plurality of supporting legs inclined inwardly towards each other
A method for constructing an offshore platform structure having a plurality of supporting legs inclined inwardly towards each other is disclosed. The entire structure may be constructed in a dry...
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4422805 |
Method of grouting offshore structures
Submerged cavities such as occur in jacketed pilings in offshore structures are grouted by the sequential use of materials with initially decreasing densities, the heaviest of which is lighter than...
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4397587 |
Method of constructing an artificial island and island constructed by the same
An artificial island is constructed by depositing material such as sand, y or the like on the building site on the bottom and by providing inhibiting means formed by branched, relatively spaced...
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4352598 |
Concrete structure for the transmission of loads from the steel lattice of a marine platform and a method of forming said structure
A concrete structure for the transmission of loads from the steel lattice tower of a marine platform resting on the sea bed by means of concrete base plates, the lattice tower being made up of...
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4220421 |
Subsea wellhead protective enclosure
Method and apparatus for protecting subsea wellheads and christmas trees from damage by anchors, fishing nets, trawl boards, and other towed devices. The apparatus includes an annular, rigid...
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4165198 |
Method for forming pier foundation columns
This invention comprises a technique for constructing concrete foundation columns in underwater locations, wherein the steel casing members used to form the columns may be recovered for subsequent...
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4129008 |
Tremie tube
A concrete feeding tube, hereinafter referred to as a "tremie tube", is used to feed concrete grout or the like underwater. This tremie tube consists of an outer tube having desired rigidity and a...
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4099281 |
Navigational buoy
A navigational buoy is provided having a buoy and an inflatable anchor. The buoy and anchor are connected by a hollow stem that is itself flexible or is rigid and is connected to the anchor by a...
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4063424 |
Device for constructing a foundation in soft soil formations
The present invention relates to a device for constructing a tubular pile foundation in soft soil formations. Where in use, the device is suspended into the soft soil from a crane or a derrick on...
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4011728 |
Means for producing subaqueous and other cast-in-place concrete structures in situ
Means for repairing or forming structural bodies of self-hardening fluid cement mortar, in a subaqueous or other situs, utilizing a body-forming cavity including body-shaping walls of porous fabric...
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3998062 |
Sea floor supported structures with crushable support
The improvement in an offshore structure having a rigid base adapted to rest on a sea floor comprising a crushable supporting means mounted beneath the base and projecting downwardly therefrom, and...
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3990252 |
Earthworks consolidation system
An earthworks is constructed by consolidating solids and/or slurries and using the consolidated material for constructing the earthworks. A quantity of less than 150 grams of hydraulic cement and a...
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3945212 |
Arrangement in or relating to caissons or the like
This invention provides a caisson adapted to bear against the sea floor, constructed such that it contacts the sea floor with a minimum of motion. The caisson includes downwardly protruding members...
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3913336 |
Floating airport and method of its construction
An airport constructed on an open body of water, with at least the runway thereof being made up of a plurality of preformed rectangular, hollow, waterproof blocks formed from reinforced concrete...
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3890794 |
Method of replacing piling
Deteriorated piling is replaced with a hollow, tubular, reinforced concrete column extending from just below the mud line to the underside of a load-bearing member supporting an overhead structure....
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3780975 |
MEANS FOR PRODUCING CAST-IN-PLACE STRUCTURES IN SITU
Laminated sheet material, and apparatus utilizing the same, for producing and/or repairing structural bodies of self-hardening fluid cementitious material in a sub-aqueous and/or subterranian...
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3745776 |
ANCHORING METHOD FOR OFFSHORE MARINE STRUCTURES
The invention relates to a method for forming an anchoring or foundation base for an offshore marine structure. Said method includes the embedment of an elongated support member lower end, which...
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3745775 |
UNDERWATER IN SITU PLACEMENT OF CONCRETE
A flexible container filled with dry concrete which will quickly set upon e addition of moisture. Because of the container's flexibility, it may be formed into any desired container to fit...
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3662559 |
ANCHORAGE FOR BOAT DOCKS
This disclosure relates to an anchorage for boat docks (piers, wharves and the like) for small boats and pleasure water craft, which anchorage can be positioned and retained in position without...
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3426109 |
METHOD OF FABRICATING A CONCRETE FLOTATION PIER
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