• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Marine construction with concrete jetty structure. The invention relates to a pier structure suitable for use in a marine construction, where said marine construction (1) essentially comprises a shaft (2) of concrete intended to be installed at an anchorage at a level of depth relative to the water level (3), and wherein said pier structure comprises two ribs (4, 4'), substantially vertical and parallel, integrated in the shaft (2) of the marine construction (1) and protruding outwardly thereof, where said ribs (4), 4') are made partially or totally of concrete. Also, the space between said ribs (4, 4') houses an access ladder (5) adapted for use by personnel accessing the marine construction (1) from an operations vessel (6). The invention also relates to a marine construction and a voussoir comprising the aforementioned jetty structure. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2716003A1
    申请号:ES201731393
    申请日:2017-12-07
    公开日:2019-06-07
    发明作者:Garcia-Conde Jose Salustiano Serna；Gomez Miguel Angel Fernandez
    申请人:Esteyco SAP；
    IPC主号:
    专利说明:

    [0001]
    [0002] MARINE CONSTRUCTION WITH CONCRETE PIERCING STRUCTURE
    [0003]
    [0004] FIELD OF THE INVENTION
    [0005]
    [0006] The present invention relates to a concrete jetty structure, suitable for installation in marine constructions, such as turrets of offshore wind turbines (generically referred to as "offshore" wind turbine towers). Said jetty structure provides physical access from a ship to said marine construction, for personnel who will perform installation, maintenance or inspection operations therein.
    [0007]
    [0008] BACKGROUND OF THE INVENTION
    [0009]
    [0010] The marine constructions in the high seas, such as, for example, turbine towers of wind turbines, have to be subjected with certain regularity to inspection and maintenance operations. For this purpose, the technical personnel assigned to these operations is transported, by ship, to the offshore installation. To perform the personnel access to the structure for inspection, the vessel used must be positioned in contact or in the vicinity of the construction (for example, on the shaft of the tower), where a metal pier is normally available (or , in its English term, "boat landing") to which operators can access. The use of piers or platforms for the safe access of personnel to this type of construction is essential, since the installation points of the same can be subjected to strong waves and tidal effects. As a result, metal piers also act as personnel security measures during access to the structure, providing surfaces or points of grip for operators, as well as shelter from waves, tidal effects or variations in sea level. , and stable and robust points of contact with the ship, so that it is maintained, as far as possible, in the same relative position during said access.
    [0011]
    [0012] An example of a pier applicable to offshore towers is described in the patent application DE 102012019554 A1, where a metal jetty suitable for installation on pillars of offshore installations is disclosed, which essentially comprises two vertical main tubes, and a ladder arranged between the tubes for use by the personnel accessing the tower. Figure 1 of the present document shows a preferred embodiment of said jetty.
    [0013]
    [0014] During the operations of access to marine construction, the bow of the ship is placed in contact with the vertical tubes, preferably exerting a push against them, so that this contact is maintained in case of possible effects of waves or variations in the level of the sea. In this position, the maintenance personnel can access from the bow of the ship to the ladder of the jetty. To protect the workers during the ascent of the ladder, the vertical tubes are arranged in an outer space, in relation to the tower, to which the ladder occupies, so that these tubes act as defenses with respect to the ship, thus leaving the operators safe from possible impacts, by remaining in the interior space occupied by the staircase.
    [0015]
    [0016] With regard to the fixation of the jetty structure to the marine construction, it is carried out in different ways, depending on the materials to be fixed, that is to say, on the construction materials of the marine construction and the jetty. In this sense, when depending on whether the marine construction is metallic or concrete, the fixing is done by means of bolted flanges, joints, welding, and / or coupling bolts, partially embedded in the concrete structures.
    [0017]
    [0018] Although metal piers represent, from the functional point of view, a valid solution for use by operators with reasonable safety margins, it is not exempt from some problems that remain, currently, unresolved in the present technical field. These problems are related, fundamentally, with the installation and fixing of the piers to the structure of the marine construction, the conservation of them with the passage of time, and their robustness against impacts derived from contact with the access vessel.
    [0019]
    [0020] On the one hand, the manufacture of the jetty as a separate element and independent of the marine construction itself, makes it necessary to contemplate, in the process of installing the tower, a specific stage destined to the fixation of the jetty, which usually incorporates the designation of the points of contact with the construction, and the application of the corresponding fixing means to promote the solidary connection between both elements, usually by screwing. However, this stage adds complexity to the general process of installation of marine construction, thus increasing the times associated with this installation. Additionally, the existence of metal structures embedded in the concrete also implies an added complexity that is not, a priori, desirable.
    [0021]
    [0022] On the other hand, metal structures suffer, over time, significant wear due to moisture, corrosion or contact or impact with the ship during inspection operations. This makes it necessary to contemplate, within the maintenance protocols of marine construction, specific stages for the application of anticorrosion paint or replacement of damaged elements of the jetty. This problem is even greater in metal structures embedded in concrete that, in case of corrosion, present a great difficulty of access for inspection or maintenance.
    [0023]
    [0024] Finally, the vertical metal tubes of the pier support the thrust or impact of the boat used in the access operations to the structure. This means that, over time, the structures for fixing said structure are affected, which can cause gaps in the flanges or even the uncoupling of the same in the most serious cases.
    [0025]
    [0026] In light of the above technical problems, it is therefore necessary to propose new pier systems for marine constructions that overcome the limitations of the state-of-the-art systems. The present invention is proposed as a solution to this need, thanks to a novel concrete pier structure suitable for use in marine constructions, and preferably for structures of offshore wind towers.
    [0027]
    [0028] BRIEF DESCRIPTION OF THE INVENTION
    [0029]
    [0030] To solve the drawbacks of the state of the art described above, the present invention aims to provide means of access to a marine concrete construction that are more easily integrable in said construction, avoiding excessive use of embedded in its manufacture and / or assembly , and where its installation is carried out in a simple way and in less time than the piers of the state of the art. The invention also provides means that increase the safety of users during the access and exit operations of the marine construction, with respect to the known jetty structures.
    [0031] Said object of the invention is preferably carried out by means of a marine construction adapted to support a wind turbine that essentially comprises a concrete shaft intended to be installed and / or transported at depth with respect to the water level. Advantageously, said marine construction comprises, integrally formed in said shaft, two substantially vertical and parallel protuberances projecting outwardly from the shaft of the marine construction, and where said protuberances are made partially or entirely of concrete. Also, the space comprised between the protuberances houses an access ladder, said access ladder configuring and the protuberances of the shaft a jetty structure for operating ships.
    [0032]
    [0033] In a preferred embodiment of the invention, in the anchoring position of the shaft of the marine construction, said structure is partially submerged with respect to the water level.
    [0034]
    [0035] In another preferred embodiment of the invention, the access ladder is a substantially vertical metallic element, fixed to the protuberances or directly to the shaft of the marine construction.
    [0036]
    [0037] In another preferred embodiment of the invention, the protuberances do not have components of exposed metallic structure.
    [0038]
    [0039] In another preferred embodiment of the invention, the protuberances protrude outwardly of the marine construction at least 30 cm more than the access ladder housed between said protuberances protrudes.
    [0040]
    [0041] In another preferred embodiment of the invention, the length of the protrusions in the vertical direction is such that, with the maximum tidal height, the protruding length of said protuberances is equal to or greater than 1 m / o, with the minimum height of tide, the submerged length of the nerves shall not be less than 1 m.
    [0042]
    [0043] In another preferred embodiment of the invention, the protuberances comprise defense elements made of a material other than concrete.
    [0044]
    [0045] In another preferred embodiment of the invention, the geometry of the protrusions in cross section is such that they have no sharp edges, or their edges are preferably rounded.
    [0046] In another preferred embodiment of the invention, the geometry of the protuberances in cross section is decreasing in the direction towards its end distal to the shaft.
    [0047]
    [0048] In another preferred embodiment of the invention, in the longitudinal direction, the distance protruding from the protuberances with respect to the shaft of said marine construction is decreasing towards at least one of its ends.
    [0049]
    [0050] In another preferred embodiment of the invention, the marine construction is an offshore tower of telescopic shaft.
    [0051]
    [0052] In another preferred embodiment of the invention, the shaft of the marine construction is made of prefabricated voussoirs, the protuberances forming the jetty structure being integrally joined in one of said voussoirs.
    [0053]
    [0054] In another preferred embodiment of the invention, the marine construction comprises a work platform adapted to provide a surface of operations, installation or maintenance for technical personnel or equipment for the purpose, where said platform is substantially horizontal and is made totally or partially of concrete .
    [0055]
    [0056] In another preferred embodiment of the invention, the marine construction comprises a plurality of pairs of protuberances with their corresponding access stairs, configured as two or more pier points of said construction.
    [0057]
    [0058] In another preferred embodiment of the invention, the marine construction comprises a lower foundation plinth or platform. In said embodiment, the access ladder of the marine construction is extended downward, to provide access to / from said base or foundation platform.
    [0059]
    [0060] In another preferred embodiment of the invention, the concrete protuberances of the jetty structure are integrally integrated into the marine construction as prefabricated parts. More preferably, the prefabricated parts are pieces obtained by molding, where the protuberances can also form part of said prefabricated pieces, obtained in the same molding process. Alternatively, the protuberances are joined together to the shaft of the marine construction by formwork and concreting.
    [0061] DESCRIPTION OF THE DRAWINGS
    [0062]
    [0063] The foregoing and other features and advantages will be more fully understood from the detailed description of the invention, as well as from the preferred embodiment examples referring to the accompanying drawings, in which:
    [0064]
    [0065] Figure 1 shows a known metallic pier structure, belonging to the state of the art.
    [0066]
    [0067] Figure 2 illustrates a general profile view of a marine construction and a pier structure according to the present invention, in a preferred embodiment thereof, where a ship accessing said marine construction is also represented.
    [0068]
    [0069] Figure 3 illustrates a top perspective view of the jetty structure of the invention, according to a preferred embodiment thereof, where it is shown its use by a user accessing the marine construction from a ship.
    [0070]
    [0071] Figures 4-6 show different views of a preferred embodiment of the invention, where the jetty structure is integrated into an offshore telescopic tower adapted to support a wind turbine in the upper section of its shaft.
    [0072]
    [0073] Figures 7-8 show two views of a preferred embodiment of the invention, wherein the marine construction comprises a plurality of pairs of protuberances configured as jetty points of said construction.
    [0074]
    [0075] List of numerical references of the figures:
    [0076]
    [0077]
    [0078]
    [0079]
    [0080] DETAILED DESCRIPTION OF THE INVENTION
    [0081]
    [0082] A detailed description of the invention referring to different preferred embodiments thereof, based on Figures 2-8 of the present document, is set forth below. Said description is provided for illustrative purposes, but not limiting the claimed invention.
    [0083]
    [0084] Figure 2 illustrates a profile view of the jetty structure of the invention, where its main elements and its general use form are represented. As can be seen in said figure, the jetty structure is an integral part of a marine construction (1) (for example, a telescopic tower in the embodiment). Said marine construction (1) essentially comprises a shaft (2) of concrete intended to be installed at a certain depth with respect to the water level (3). In a preferred embodiment of the invention, the shaft (2) is a shaft of a wind turbine tower.
    [0085]
    [0086] For its part, the pier structure of the marine construction (1) comprises two protuberances (4, 4 '), substantially vertical and parallel, integrated into the shaft (2) of the marine construction (1) and protruding outwardly from this . Said protuberances (4, 4 ') are manufactured at least in part from reinforced concrete, without components of exposed metallic structure.
    [0087]
    [0088] The space between the protuberances (4, 4 ') of the marine construction (1) houses an access ladder (5), intended for use by personnel accessing the marine construction (1) or a ship (6). ) of operations, as part of inspection or maintenance tasks. As shown in Figure 2, the operation vessel (6) will be maintained, during the performance of said tasks, in contact with or in the vicinity of the jetty structure of the invention, facilitating the transition of operations personnel from the ship (6) to the marine construction (1), and vice versa. Likewise and preferably, when the marine construction (1) is installed, the jetty structure is partially submerged, so that its functionality is not affected by relative rises or decreases in the water level (3), as a result of waves or tides.
    [0089]
    [0090] Figure 3 shows a top view of the jetty structure of a marine construction (1) according to the invention, where an operator (7) is represented accessing said construction. As seen in the figure, the boat (6) used for access will be placed in contact with the jetty structure, and more specifically in contact with its concrete protuberances (4, 4 '), which will act as a stop to protect the access space by the operator (7). Also, to make the ascent by the marine construction (1), the access ladder (5) will be used. Said access ladder (5) is preferably a substantially vertical metallic element that is housed in the space between the protuberances (4, 4 '), and can be fixed to them or to the marine construction itself (1) (as shown in FIG. shown in Figure 3). As a general rule, to provide a sufficient level of security in the access operations, the protuberances (4, 4 ') protrude outwardly from the marine construction (1) at least 30 cm more than the access ladder (5) protrudes when it is located between them. On the other hand, the length of the protuberances (4, 4 ') in the vertical direction is preferably such that, with the maximum tidal height, the protruding length of said protuberances (4, 4') will not be less than 1 m. In the same way, with the minimum height of tide, the submerged length of the protuberances (4, 4 ') will not be less than 1 m.
    [0091]
    [0092] The fixings used for the access ladder (5) can be, for example, joints and / or bolts, embedded or not embedded in the interior of the concrete body of said construction (1) or of the protuberances (4, 4 '). In the event that the ladder (5) is fixed to the shaft (2) independently of the protuberances (4, 4 '), it is achieved that the ascent of the operator (7) is made without being affected by possible impacts of the boat (6) on the jetty structure, thereby increasing its security. These impacts, in the event of strong waves, can entail a great risk for the operator (7). In an optional embodiment of the invention, the protuberances (4, 4 ') may comprise defense elements (8) made of a material other than concrete (eg, comprising rubber or other plastic materials), intended to reinforce their integrity against the cited impacts of the ship (6), acting also as means of protection of the latter. The aforementioned elements of defense (8) can be replaced with certain periodicity in case of wear, as part of maintenance operations of marine construction (1).
    [0093]
    [0094] With regard to its shape, the geometry of the protuberances (4, 4 ') in cross section (Figure 3) is such that it does not have sharp edges, or its edges are preferably rounded. Likewise, the protuberances (4, 4 ') have a decreasing cross section in the direction towards their end distal to the shaft (2).
    [0095]
    [0096] On the other hand, in the longitudinal direction, the distance protruding from the ribs (4, 4 ') with respect to the shaft (2) of the marine construction (1) is preferably decreasing towards at least one of its ends. With said geometry, the risk of hooking of the ship (6) in the jetty structure, in case of a sudden relative lowering of the water level (3), is significantly reduced.
    [0097]
    [0098] Figures 4-6 show different views of a possible embodiment of the marine construction (1) of concrete, where said construction is an offshore telescopic tower adapted to support a wind turbine (element (9), shown in Figures 5-6) in the upper section of its shaft (2). However, other configurations of tower or marine construction (1) are also usable in the field of the invention, without altering the object of the same.
    [0099]
    [0100] As mentioned above, the concrete protuberances (4, 4 ') of the pier structure are integrated into the marine construction itself (1), either as prefabricated pieces concreted against the shaft (2), or formed as part of the structure. said shaft (2). In both cases, the integration of the protuberances (4, 4 ') in the shaft (1) is to be understood, within the scope of the present document, as that said protuberances (4, 4') have a substantially continuous and integral connection with said shaft (2), where said continuous and solidary union comprises the absence of intermittent connections, such as those existing in metal piers of the state of the art (for example, the one illustrated in Figure 1).
    [0101]
    [0102] For its part, the shaft (2) is manufactured, preferably, based on prefabricated segments, the pier structure being integrated into one of said segments (that is, forming a integral part thereof). Regarding the construction of the same, it will be carried out preferably on molds arranged horizontally. Thus the concrete protuberances (4, 4 ') integrated in the voussoir can also be manufactured as part of the prefabrication process of said Voussoir in horizontal, before turning and pre-assemble in dry with the rest of voussoirs to form the shaft (2) complete marine construction (1). For its part, the mold for the prefabrication of the voussoir equipped with the pier structure may also comprise the mold for concreting the protuberances (4, 4 ') of said structure. Thus, said protuberances (4, 4 ') are prefabricated and placed on the mold of the voussoir to which they will be joined, before concreting said voussoir. Additionally, it is also possible to use a formwork to concrete the protuberances (4, 4 ') in the second phase, after having concreted the segment to which they are attached.
    [0103]
    [0104] As shown in figures 2-6, and as described in preceding paragraphs, the protrusions (4, 4 ') are integrally integrated in the marine construction (1) (either in the shaft (2), or in one of its voussoirs) in a solid and continuous manner, that is, without gaps or intermittent connections in its regions of union with the shaft (2), thus providing a robust protection and greater protection against water than the offshore tower piers of the state of the art.
    [0105]
    [0106] In an alternative embodiment of the invention, the protuberances (4, 4 ') of the jetty structure are joined to the concrete shaft (2) by connecting elements, which are totally or partially embedded in the wall of the shaft (2) during its concrete.
    [0107]
    [0108] On the other hand and as shown also in Figures 4-6 of the present document, the marine construction (1) may comprise, in its shaft (2), a work platform (10) intended to provide an operating surface, installation o Maintenance for technical personnel or equipment designed for this purpose. Said platform (10) is substantially horizontal and will preferably be made partially or totally of concrete. Its main functions are to serve as a support surface for the aforementioned maintenance tasks, to carry out the lifting operations of tower sections (in the case of telescopic shafts, as is the case in the embodiment shown in the Figures) , or to improve accessibility to marine construction (1). For this, the work platform (10) will always be arranged in a region emerged from the shaft (2) of the marine construction (1). Like the jetty structure of the invention, the work platform (10) can be integrated into one or several segments of the shaft (2), being made as part of the mold of said segments.
    [0109] Figures 7-8 show two views of a preferred embodiment of the invention, wherein the marine construction (1) comprises a plurality of pairs of protuberances (4, 4 '), configured as two or more pier points of said construction (1 ). This provides the possibility of being able to access the shaft (2) in the most favorable way, depending on the wave conditions that are occurring at that moment. In the example of Figure 7, the pier points are arranged spaced 120 ° relative to the longitudinal axis of the shaft (1).
    [0110]
    [0111] Also, in another preferred embodiment of the invention (as shown in Figure 8), the marine construction is a structure equipped with a lower foundation plinth or platform (11). In said embodiment, one or more of the access stairs (5) of the marine construction (1) may extend downwards, to provide access to / from said foundation or foundation platform (11), for example in provisional phases of construction or installation of the aforementioned construction (1).
    权利要求:
    Claims (19)
    [1]
    1. - Marine construction (1) adapted to support a wind turbine (9) comprising, essentially, a shaft (2) of concrete intended to be installed and / or transported at depth with respect to the water level (3);
    characterized in that said marine construction (1) comprises, integrally integrated in said shaft (2), two protuberances (4, 4 ') substantially vertical and parallel, protruding outwardly from the shaft (2) of the marine construction (1) , and wherein said protuberances (4, 4 ') are made partially or totally of concrete;
    and where the space comprised between the protuberances (4, 4 ') houses an access ladder (5), said access ladder (5) and the protuberances (4, 4') of the shaft (2) forming a jetty structure for ships (6) of operations.
    [2]
    2. Marine construction (1) according to the preceding claim, wherein the protuberances (4, 4 ') are arranged in the shaft (2) so that, in the anchoring position of said marine construction (1), said protuberances ( 4, 4 ') are partially submerged with respect to the water level (3).
    [3]
    3. Marine construction (1) according to any of the preceding claims, wherein the access ladder (5) is a metal element substantially vertical, fixed to the protuberances (4, 4 ') or directly to the shaft (2) of the construction marine (1).
    [4]
    4. Marine construction (1) according to any of the preceding claims, wherein the protuberances (4, 4 ') do not have components of exposed metal structure.
    [5]
    5. Marine construction (1) according to any of the preceding claims, wherein the protuberances (4, 4 ') protrude externally of the shaft (2) at least 30 cm more than the access ladder (5) protruding between said protruding elements. protuberances (4, 4 ').
    [6]
    6. Marine construction (1) according to any of the preceding claims, wherein the length of the protrusions (4, 4 ') in vertical direction is such that, with the maximum height of tide, the emerged length of said protuberances (4, 4 ') is the same or greater than 1 m / o, with the minimum height of tide, the submerged length of the nerves (4, 4 ') shall not be less than 1 m.
    [7]
    7. Marine construction (1) according to any of the preceding claims, wherein the protuberances (4, 4 ') comprise defense elements (8) made of a material other than concrete.
    [8]
    8. Marine construction (1) according to any of the preceding claims, wherein the geometry of the protuberances (4, 4 ') in cross section is such that it has no sharp edges, or its edges are preferably rounded.
    [9]
    9. Marine construction (1) according to any of the preceding claims, wherein the geometry of the protuberances (4, 4 ') in cross section is decreasing in the direction towards its end distal to the shaft (2).
    [10]
    10. Marine construction (1) according to any of the preceding claims, wherein, in longitudinal sense, the distance protruding protuberances (4, 4 ') with respect to the shaft (2) of said marine construction (1) is decreasing in the direction to, at least, one of its extremes.
    [11]
    11. Marine construction (1) according to any of the preceding claims, wherein said marine construction (1) is an offshore tower of telescopic shaft (2).
    [12]
    12. Marine construction (1) according to any of the preceding claims, wherein the shaft (2) is made of prefabricated segments, the protuberances (4, 4 ') forming the jetty structure integrally integral in one of said voussoirs.
    [13]
    13. Marine construction (1) according to any of the preceding claims, comprising a work platform (10) adapted to provide an area of operations, installation or maintenance for technical personnel or equipment for the purpose, where said platform (10) it is substantially horizontal and is made entirely or partially of concrete.
    [14]
    14. Marine construction (1) according to any of the preceding claims, wherein the protuberances (4, 4 ') of concrete are integrally integrated into the marine construction (1) as prefabricated parts.
    [15]
    15. Marine construction (1) according to the preceding claim, wherein the prefabricated parts are pieces obtained by molding.
    [16]
    16. Marine construction (1) according to the preceding claim, wherein the protuberances (4, 4 ') are part of the prefabricated parts, and are obtained with said molding.
    [17]
    17. Marine construction (1) according to any of claims 1-13, wherein the protuberances (4, 4 ') are joined together to the shaft by formwork and concreting.
    [18]
    18. Marine construction (1) according to any of the preceding claims, comprising a plurality of pairs of protuberances (4, 4 ') with their corresponding access stairs (5), configured as two or more pier points of said construction (one).
    [19]
    19. Marine construction (1) according to any of the preceding claims, wherein said marine construction (1) comprises a lower base or foundation platform (11), and where the access ladder (5) of the marine construction
    (1) extends in a downward direction, to provide access from / to said base or foundation platform (11).
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    同族专利:
    公开号 | 公开日
    US20210009237A1|2021-01-14|
    ES2716003B2|2019-10-09|
    CN111566287A|2020-08-21|
    JP2021505471A|2021-02-18|
    EP3722510A4|2021-09-15|
    KR20200112824A|2020-10-05|
    EP3722510A1|2020-10-14|
    WO2019110859A1|2019-06-13|
    WO2019110859A8|2020-07-16|
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