Abstract: The method indicates a way to avoid or considerably reduce the possibility of a jamming or spoofing attack successfully affecting the signals from the satellites, allowing the satellites to be detected even in situations where the receiver is starting up cold and makes it possible for the GNSS positions that have been verified using same to be accepted as evidence before a court of law. To ensure that the position calculated by the receiver is valid, the method includes a transmitter in the radio navigation receiver, various functions added to the actual satellites and the ground control segment of the GNSS system, in order to be able to calculate the location/area where the receiver is located. With the information, the position supplied by the receiver can be compared with that calculated by a third entity to detect whether it is correct or, conversely, if it cannot be considered valid.

Abstract: The invention relates to a movable module and to a method of hoisting telescopic towers, preferably wind turbine towers, an ascending section of the tower being hoisted in relation to a supporting section of the tower immediately outside. The movable module preferably comprises at least one hydraulic jack; at least one hoisting cable pre-installed through the hydraulic jack and which remains connected to the jack throughout the performance of the method of hoisting the telescopic tower; and grouping means arranged at the free end of at least one hoisting cable. Advantageously, during hoisting, the movable module is temporarily fixed to the head of the supporting section, and the grouping means (4) are temporarily fixed to the base of the ascending section.

Abstract: The invention relates to a boat landing structure suitable for being used in a marine construction, wherein said marine construction comprises, essentially, a concrete shaft intended for being installed anchored at a depth level with respect to the water level, and wherein said boat landing structure comprises two substantially vertical and parallel ribs, integrated in the shaft of the marine construction and projecting out from same, wherein said ribs are made partially or entirely of concrete. Likewise, the space comprised between said ribs houses an access ladder suitable for being used by personnel accessing the marine construction from an operation boat. The invention also relates to a marine construction and a segment comprising the mentioned boat landing structure.

Abstract: Floating construction comprising: a flotation base, comprising at least one essentially hollow body selectively fillable with ballast, where the maximum horizontal dimension of the flotation base is greater than the maximum vertical dimension of the floating base; a building supported by said flotation base preferably comprising a telescopic tower; downward impelling means; and at least three retaining cables the corresponding upper ends of which are attached to said flotation base, preferably in peripheral positions of the flotation base, and the corresponding lower ends of which are attached to said downward impelling means, such that said retaining cables are taut and apply a downward force on said flotation base that increases the stability thereof. And the installation method for this floating construction.

Abstract: The invention relates to an auxiliary floating system for the installation, transport or maintenance of an offshore structure, said structure comprising at least one essentially vertical shaft, wherein said auxiliary floating system comprises: at least one floating element that remains semi-submerged during the process of installing the offshore structure; at least one coupling structure connected to said floating element; and guide elements secured to the coupling structure and in sliding contact with the shaft. Advantageously, the sliding contact between the auxiliary floating system and the shaft is such that it allows essentially horizontal relative movement between the auxiliary floating system and said shaft, such that during the process of installing the offshore structure, said structure sinks while the auxiliary floating system remains at essentially the same level on the surface.

Abstract: The method indicates a way to avoid or considerably reduce the possibility of a jamming or spoofing attack successfully affecting the signals from the satellites, allowing the satellites to be detected even in situations where the receiver is starting up cold and makes it possible for the GNSS positions that have been verified using same to be accepted as evidence before a court of law. To ensure that the position calculated by the receiver is valid, the method includes a transmitter in the radio navigation receiver, various functions added to the actual satellites and the ground control segment of the GNSS system, in order to be able to calculate the location/area where the receiver is located. With the information, the position supplied by the receiver can be compared with that calculated by a third entity to detect whether it is correct or, conversely, if it cannot be considered valid.

Abstract: The present disclosure relates to a system for installing anti-scouring material on a premanufactured marine foundation, said foundation being transportable in a self-floating manner to its final position on the seabed; comprising: at least one device for housing the anti-scouring material; at least one device for securing the anti-scouring material and/or said housing device to the marine foundation; and wherein the housing device and the securing device are installable on the marine foundation prior to the marine foundation being installed in its final position.

Abstract: Assembly process of a telescopic tower (100) including at least one prefabricated concrete section, comprising the following steps: providing sections (2,4,6,8,10) in an initial position wherein superimposed sections are disposed coaxially within a base section (10); providing assembly means (14,16,18); providing operator support means (20) on the external surface of said base section (10) essentially vertically in correspondence with the upper edge of said base section (10); lifting the innermost superimposed section (2,4,6,8) radially from those that are in the initial position forming a joint between the lower end portion of said superimposed section (2,4,6,8) which is being lifted and the upper end portion of the radially external and immediately adjacent section (4,6,8,10); providing in said joint anchoring devices for immobilizing at least provisionally the corresponding sections (2,4,6,8,10) between one another.

Abstract: The present disclosure relates to a system for installing anti-scouring material on a premanufactured marine foundation, said foundation being transportable in a self-floating manner to its final position on the seabed; comprising: at least one device for housing the anti- scouring material: at least one device for securing the anti-scouring material and/or said housing device to the marine foundation; and wherein the housing device and the securing device are installable on the marine foundation prior to the marine foundation being installed in its final position.

Abstract: The invention relates to an auxiliary floating system for the installation, transport or maintenance of an offshore structure, said structure comprising at least one essentially vertical shaft, wherein said auxiliary floating system comprises: at least one floating element that remains semi-submerged during the process of installing the offshore structure; at least one coupling structure connected to said floating element; and guide elements secured to the coupling structure and in sliding contact with the shaft. Advantageously, the sliding contact between the auxiliary floating system and the shaft is such that it allows essentially vertical relative movement between the auxiliary floating system and said shaft, such that during the process of installing the offshore structure, said structure sinks while the auxiliary floating system remains at essentially the same level on the surface.

Abstract: Floating construction comprising: a flotation base including at least one essentially hollow body selectively fillable with ballast, where the maximum horizontal dimension of the flotation base is greater than the maximum vertical dimension of the flotation base; a building supported by said flotation base, comprising preferably a telescopic tower; downward impelling means; and at least three retaining cables, the corresponding upper ends thereof being attached to said flotation base, preferably at peripheral positions of the flotation base, and the corresponding lower ends thereof being attached to said downward impelling means, such that said retaining cables are tensioned and exert on said flotation base a downward force that increases the stability of the floating construction. And the installation method for this floating construction.

Abstract: Floating construction comprising: a flotation base, comprising at least one essentially hollow body selectively fillable with ballast, where the maximum horizontal dimension of the flotation base is greater than the maximum vertical dimension of the floating base; a building supported by said flotation base preferably comprising a telescopic tower; downward impelling means; and at least three retaining cables the corresponding upper ends of which are attached to said flotation base, preferably in peripheral positions of the flotation base, and the corresponding lower ends of which are attached to said downward impelling means, such that said retaining cables are taut and apply a downward force on said flotation base that increases the stability thereof. And the installation method for this floating construction.

Abstract: Process for installing an offshore tower, specifically a substructure, which basically comprises the following steps: a) dry manufacturing a foundation comprising a block (1, 1?) basically made of concrete and dry manufacturing a base section (25) of a shaft (2); b) applying said base section to said foundation block, forming a unit called the “starting unit”; c) moving said starting unit to the installation point of said substructure; and d) actuating in a controlled manner, first ballast valve means in such a manner that said starting unit sinks until resting on the seabed; having placed said foundation block or said starting unit in the body of water where the installation point said substructure is located.

Abstract: Process for installing an offshore tower, comprising: a) manufacturing a foundation comprising a block, manufacturing at least one superposition section of a shaft, and manufacturing a base section of a shaft; b) applying said base section to said foundation block (starting unit) to assume the relative position for the installed condition, applying said superposition sections to said starting unit in a multi-layered configuration, and applying lifting means to at least one of said foundation block and said base section; c) moving said starting unit up to the installation point; d) introducing ballast in said foundation block so that said starting unit sinks until resting on the bottom of the body of water; e) actuating said lifting means to expand said sections into the installed condition; f) between step a) and c), placing said foundation block or starting unit in the body of water of the installation point.

Abstract: Assembly process of a telescopic tower (100) including at least one prefabricated concrete section, comprising the following steps: providing sections (2,4,6,8,10) in an initial position wherein superimposed sections are disposed coaxially within a base section (10); providing assembly means (14,16,18); providing operator support means (20) on the external surface of said base section (10) essentially vertically in correspondence with the upper edge of said base section (10); lifting the innermost superimposed section (2,4,6,8) radially from those that are in the initial position forming a joint between the lower end portion of said superimposed section (2,4,6,8) which is being lifted and the upper end portion of the radially external and immediately adjacent section (4,6,8,10); providing in said joint anchoring devices for immobilizing at least provisionally the corresponding sections (2,4,6,8,10) between one another.

Abstract: A socket-projection fixing assembly for a horizontal wet joint (3) between two cylindrical concrete sections (2.2?) for a wind turbine tower, which comprises socket-projection fixing device with an active internal reinforcement (8) and a socket-projection fixing device with a passive internal reinforcement (7) so that said reinforcements each include an embedded portion which is embedded in a first section of said cylindrical sections and a projecting portion which projects from said first section and is housed in a duct (9, 10) in a second section of said cylindrical sections. Said active internal reinforcement includes tightening means (14, 16) which are arranged in said projecting portion of said active internal reinforcement and against a supporting surface (15) of one of said cylindrical sections, and said passive internal reinforcement includes cured material (12) which is arranged around said projecting portion o said passive internal reinforcement (7) and adheres to the interior of said duct (10).

Abstract: Process for installing an offshore tower, comprising: a) manufacturing a foundation comprising a block (1, 1?), manufacturing at least one superposition section of a shaft (7), and manufacturing a base section (25) of a shaft; b) applying said base section to said foundation block (starting unit) to assume the relative position for the installed condition, applying said superposition sections to said starting unit in a multi-layered configuration, and applying lifting means to said foundation block and/or said base section; c) moving said starting unit up to the installation point; d) introducing ballast in said foundation block so that said starting unit sinks until resting on the bottom of the body of water; e) actuating said lifting means to expand said sections into the installed condition; f) between step a) and c), placing said foundation block or starting unit in the body of water of the installation point.

Abstract: Method for accessing the outer surface of wind turbine towers comprising the following steps: attaching an external peripheral rail on the outer surface of the tower; making an orifice above said rail; arranging a working platform on the base of the tower; inserting a cable reel in the orifice; raising the platform by driving the cable reel until it is near the peripheral rail; arranging means for suspension and horizontal displacement on the horizontal rail; connecting the platform to said means for suspension and horizontal displacement and displacing the platform as needed.

Abstract: Process for installing an offshore tower, specifically a substructure, which basically comprises the following steps: a) dry manufacturing a foundation comprising a block (1, 1?) basically made of concrete and dry manufacturing a base section (25) of a shaft (2); b) applying said base section to said foundation block, forming a unit called the “starting unit”; c) moving said starting unit to the installation point of said substructure; and d) actuating in a controlled manner, first ballast valve means in such a manner that said starting unit sinks until resting on the seabed; having placed said foundation block or said starting unit in the body of water where the installation point said substructure is located.

Abstract: A tower structure for a wind energy turbine, wind power, renewable energy, and other uses made of concrete, steel-reinforced concrete or other materials, and a method of manufacture thereof are described. The structure includes several pre-fabricated tower lengths, each tower length having at least three pre-fabricated wedges, such that a central protruding edge of each wedge approaches or lies at a center line of the tower structure when assembled. Tower lengths higher in the tower may be narrower and may be made up of fewer wedges than lower tower lengths. Each tower length may also include several apertures or channels adapted to accommodate a cable joining all the tower lengths of the tower. Also, tower lengths may have a circular or polygonal outer ring made up of bracing elements, each bracing element arranged when assembled to brace one or more wedges.