EP2500473B1 - Procédé de fabrication d'une fondation pour une installation offshore - Google Patents

Procédé de fabrication d'une fondation pour une installation offshore Download PDF

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Publication number
EP2500473B1
EP2500473B1 EP11158535.2A EP11158535A EP2500473B1 EP 2500473 B1 EP2500473 B1 EP 2500473B1 EP 11158535 A EP11158535 A EP 11158535A EP 2500473 B1 EP2500473 B1 EP 2500473B1
Authority
EP
European Patent Office
Prior art keywords
component
drilling
cavity
seabed
drill hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP11158535.2A
Other languages
German (de)
English (en)
Other versions
EP2500473A1 (fr
Inventor
Marc Dr. Peters
Thomas Studer
Jens Dr. Wiemann
Fenno Leenwerke
Christof Dr. Gipperich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Herrenknecht AG
Hochtief Solutions AG
Original Assignee
Herrenknecht AG
Hochtief Solutions AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Herrenknecht AG, Hochtief Solutions AG filed Critical Herrenknecht AG
Priority to DK11158535.2T priority Critical patent/DK2500473T3/da
Priority to PL11158535T priority patent/PL2500473T3/pl
Priority to EP11158535.2A priority patent/EP2500473B1/fr
Publication of EP2500473A1 publication Critical patent/EP2500473A1/fr
Application granted granted Critical
Publication of EP2500473B1 publication Critical patent/EP2500473B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/28—Placing of hollow pipes or mould pipes by means arranged inside the piles or pipes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/0004—Nodal points
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/42—Foundations for poles, masts or chimneys
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/52—Submerged foundations, i.e. submerged in open water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0091—Offshore structures for wind turbines

Definitions

  • the invention relates to a method for producing a foundation for an offshore installation, in particular for an offshore wind turbine.
  • Offshore plant means a fixed structure that is built in the open sea and especially offshore.
  • offshore wind turbines can also be, for example, oil rigs or bridges.
  • An offshore wind turbine usually has a component by which the wind turbine is anchored in the seabed.
  • Such an offshore plant is for example from the WO 2010/139380 A1 known.
  • a mast is placed, which protrudes relatively high from the water surface.
  • the generator, a bearing device for the rotor and the rotor itself is arranged at the top of the mast.
  • Offshore wind turbines can protrude above 150 m from the water surface and are usually installed or anchored in water depths of up to 50 m.
  • the foundation of wind turbines on the seabed is exposed to relatively high forces or stresses, in particular due to waves, wind loads and dead weight of the wind turbine and due to the dynamic forces from the plant operation.
  • the invention the technical problem of providing a method of the type mentioned above, in which the environmental impact can be minimized, in which the dependence on the local geology is reduced and with the establishment of a high load capacity can be realized.
  • the invention teaches a method for producing a foundation for an offshore installation, in particular for an offshore wind turbine, wherein a structural element in the form of a tubular hollow body held by means of a manipulation device in a vertical or a substantially vertical position is, with the device is then lowered with its lower end to the seabed, wherein subsequently to the lower end of the component with a drilling device, a borehole is drilled into the seabed and the component - is lowered in the borehole - according to the Bohr notebook intimid, wherein the component is fixed after reaching its final depth in its position in the borehole and wherein the component is then used itself as a foundation element or as part of a foundation body or as a cavity protection for a foundation element.
  • the component is a tubular hollow body made of steel or reinforced concrete.
  • the component or the hollow body is cylindrical and preferably also the cavity in the component is cylindrical. It is also within the scope of the invention that extends the cavity, preferably the cylindrical cavity over the entire length of the component or over the entire length of the hollow body.
  • the component is held in a vertical or in a substantially vertical position with the aid of the manipulation means in the context of the invention that the longitudinal axis of the component or the tubular hollow body is oriented vertically or substantially vertically.
  • seabed so also means, for example, the bottom of a lake or a river.
  • the device according to the invention is used directly as a foundation element.
  • a foundation element For this purpose, it is expediently designed as a heavy tube made of metal or reinforced concrete for permanent use as a structural part.
  • the component or foundation element is then supplemented by further structural components, for example a windmill shaft or a pylon.
  • the component is used as part of a foundation body and is then supplemented by at least one further foundation element.
  • This foundation element may be a monopile or, for example, a leg of a tripod.
  • the introduced into the seabed component serves as a kind of plug-in element for the foundation element.
  • the foundation element can preferably be introduced with a shaft portion in the upper end of the plug-in element.
  • the component is used as a cavity protection for the production of a foundation element.
  • the component is used in particular, as it were, as lost formwork, as a threat or as an escape guard.
  • a component is first transported floating to the place of use or installation location.
  • the transport can be done with a pontoon, a ship or the like.
  • the floating state of the component is realized either by a self-floating tubular hollow body or with the help of at least one floating tank, which is introduced into the tubular hollow body or it clasps.
  • the component is transported with the proviso floating to use that its longitudinal axis is oriented horizontally or substantially horizontally.
  • the component is first lowered or lowered at its place of use or installation location. The lowering can take place down to the seabed or up to a defined position above it.
  • the ballasted or flooded the aforementioned floating tanks can also be temporarily stored only here and later set up or installed or later transported to its site or installation site.
  • the transport of the component on the one hand and the installation or anchoring of the component on the other hand are decoupled from each other.
  • a displacement device is used for the installation or for the anchoring of the component.
  • the transfer device may in particular be a jack-up or a ship.
  • the component is transferred to a vertical position or in a substantially vertical position, preferably with a lifting device, which is preferably arranged or fixed to or on the transfer device.
  • the transfer device is supported and positioned with lifting legs on the seabed.
  • the component is fixed in its vertical position or substantially vertical position by the manipulation device according to the invention or clamped by the manipulation device according to the invention and is held in the vertical position or in the substantially vertical position.
  • the manipulation device is connected or fixed to the transfer device.
  • the component is held in its upper half in relation to its height h, preferably in the upper quarter of the manipulation device.
  • the manipulation device has clamping elements between which the component is clamped. This can be a clamp clamp construction act. It is within the scope of the invention that the component is guided or held with the manipulation device with respect to its vertical and horizontal position.
  • the component is first clamped in the manipulation device and then moved by means of the manipulation device and the lifting device in the direction of the seabed.
  • the component is then released from the manipulation device so that it can sink under its own weight on the seabed or can sink into the seabed under its own weight.
  • the borehole is drilled into the seabed at the lower end of the device with the drilling device, said borehole expediently has a larger diameter or a slightly larger diameter than the outer diameter of the component.
  • the manipulation device is lowered in the direction of the seabed when the component is lowered into the borehole, the component being held in its position.
  • the manipulation device is expediently guided vertically downwards on at least one guide rail of the transfer device.
  • the tracking is preferably carried out until the device has reached its final depth in the seabed.
  • the drilling progress takes place cyclically.
  • a very preferred embodiment of the invention is characterized in that the drilling device is at least partially received in the cavity of the component.
  • the drilling device is inserted into the cavity of the component and positioned when the component has been deposited on the seabed or sunk into the seabed.
  • at least the drill drive of the drilling device and optionally cable feeds for this drill drive are arranged in the cavity of the component.
  • the auger drive may be a hydraulic or electromotive auger drive.
  • the drilling device or the drill drive is positively fixed in the cavity of the component.
  • the borehole wall of the leading borehole is hydraulically supported by a liquid during the drilling operation.
  • This liquid may be seawater present in the cavity of the component and downhole or a support suspension, for example a polymer-based or bentonite-based support slurry.
  • a support suspension for example a polymer-based or bentonite-based support slurry.
  • a preferred embodiment of the method according to the invention is characterized in that it is drilled in the full-cut method and that for this purpose preferably a cutting wheel installed at the lower end of the component is used.
  • the rotating cutting wheel loosens the soil in the borehole and expediently feeds the dissolved soil material to a conveying device.
  • Another embodiment of the invention is characterized in that is drilled in the partial section method.
  • a rotating cutting roller is suitably used with stocking from mining tools, which is preferably mounted on a three-dimensionally movable arm. Again, the rotating cutting roller expediently leads the dissolved soil material to a conveyor.
  • the drilling operation begins after the component has been brought into the vertical or substantially vertical position and has been lowered onto the seabed.
  • the borehole is - successively driven into the seabed - according to the diameter of the component.
  • the component is held or fixed in its position with the aid of the manipulation device. Empfohlenelik the drilling device is driven by pressing.
  • the press control is performed force-controlled for targeted and controlled control of the pressure force of the drilling device at the lower end of the component. It is recommended that a control of the drilling device of a control unit of the transfer device out.
  • the component is lowered in cycles after each drilling stroke in accordance with the drilling progress on the bottom of the borehole. This is expediently carried out with the aid of the manipulation device. In principle, however, it is also within the scope of the invention to continuously track the component during drilling.
  • a recommended embodiment of the invention is characterized in that a component with an outer jacket or annular jacket and an inner jacket or annular jacket is used and that at least one hollow chamber is arranged between the outer and inner jacket.
  • the dissolved during the drilling process soil material is conveyed away through the cavity of the component upwards.
  • the cavity of the device during the drilling process is completely or virtually completely filled with liquid, so that the dissolved soil material can be hydraulically carried away and is preferably conveyed away in the context of a hydraulic delivery circuit.
  • the dissolved soil material is then fed to a Separierstrom for separation of liquid and soil material. It has already been pointed out that the liquid in the cavity of the Component also contributes to the hydraulic support of the borehole walls or the borehole wall.
  • the borehole is produced with an overcut in view of the outer diameter of the component and that therefore the diameter of the borehole is larger or slightly larger than the outer diameter of the component.
  • a lubricant can be introduced in the gap or annular gap between the component and the borehole wall.
  • a bentonite suspension is used as a lubricant.
  • a lubricant is introduced into the gap or annular gap between the component and the borehole wall, which is liquid or viscous during the drilling process and cures after completion of the drilling process (1-phase solution).
  • This lubricant is preferably a mortar suspension.
  • the gap or annular gap between the device and the borehole wall after completion of the drilling process with a backfill material, preferably with a hydraulically setting backfill material is pressed ,
  • the bentonite suspension is removed after reaching the final depth of the component from the annular gap.
  • mortar is preferably introduced into the annular gap via the cavity of the component Pressed, which displaces the bentonite suspension.
  • a collecting ring for collecting the bentonite suspension is provided at the upper end of the annular gap, so that it does not escape into the seawater.
  • a very preferred embodiment of the invention is characterized in that after completion of the drilling operation at least a part of the components of the drilling device is dismantled and in particular at least a part of recorded in the cavity of the component components of the drilling device is rebuilt. Conveniently, at least the drill drive is removed again from the cavity of the component and according to a particularly preferred embodiment, the drill head or the drilling tools. A complete dismantling of the components of the drilling device is preferred in the context of the method according to the invention. The drilling device or the components of the drilling device can then be reused in an advantageous manner.
  • the component After completion of the drilling process, the component is recommended to be fixed in its position in the borehole. This is done in particular by the above-mentioned mortar or the above-mentioned filling material in the gap or annular gap between the component and the borehole wall.
  • the component is additionally fixed by means of anchoring anchors, which are driven through openings in the tubular hollow body in the surrounding submarine ground. This Anpressanker improve the load transfer into the ground and increase the load capacity of the tubular hollow body or the component.
  • the component itself is used as a foundation element.
  • it is designed as a heavy pipe made of metal or steel / prestressed concrete for permanent use as a structural part.
  • the component or foundation element is then supplemented by further components, for example a windmill shaft or a pylon.
  • the component is used as part of a foundation body.
  • a foundation element is introduced into the cavity or in the upper end of the component used as the primary foundation element and fixed in this position.
  • the fixation is preferably realized with a binder.
  • the component can be made lighter and / or shorter in this second embodiment than in the first embodiment explained above.
  • the component is expediently also a heavy tube made of metal or steel / prestressed concrete.
  • the foundation element is designed as a component of steel, reinforced concrete and / or prestressed concrete.
  • the foundation element can be formed either monolithically or from individual prefabricated and connected ring elements.
  • the device serves as a cavity securing or dowel for a foundation element.
  • the foundation element is thereby introduced into the cavity of the component and fixed there.
  • the fixation is realized here with a binder.
  • the component or the hollow body can be made much easier than in the two embodiments described above.
  • the founding element is also here expediently designed monolithic as a component made of steel, reinforced concrete or prestressed concrete or composed of individual prefabricated elements.
  • the cavity of the component can be filled at least in the lower part with the dissolved soil material or cuttings.
  • the invention is based on the finding that with the method according to the invention a foundation of offshore facilities can be generated, the environmental pollution and in particular unwanted noise emissions compared to the known measures described above are minimized considerably. Also, the method of the invention is largely independent of local geological conditions.
  • the foundation produced by the method according to the invention is characterized by a surprisingly high load-bearing capacity, while at the same time reducing the masses and weights of the components to be installed in one work step. This overcomes the existing restrictions on the size of offshore installations. It should also be pointed out that the method according to the invention works with relatively simple and less complicated measures and can thus be realized relatively inexpensively.
  • the figures illustrate the inventive method for producing a foundation for an offshore installation, in the embodiment according to the figures for an offshore wind turbine.
  • a component 1 in the form of a tubular hollow body is preferably initially transported floating.
  • the floating position of the component 1 is in the FIG. 1 shown in phantom.
  • the component 1 is designed as a self-floating hollow body and indeed mounted in the interior of the tubular hollow body, not shown swimming tanks.
  • the transport takes place in the exemplary embodiment, moreover, with two tugs 2.
  • the component 1 is then lowered to the seabed 3 (in FIG. 1 drawn undressed).
  • the floating tanks are expediently ballasted in the interior of the component 1.
  • the device 1 in the lowered state to the seabed 3, the device 1 according to an embodiment can initially be stored and anchored at a later date in the seabed.
  • the device 1 is installed immediately after lowering.
  • the jack 4 has a relative to lifting legs 5 movable in the vertical direction Hubinselt 6.
  • the lying on the seabed 3 component 1 is then connected to a arranged on the jack 4 lifting device 7.
  • the component 1 is transferred with the lifting device 7 in a vertical position.
  • the component 1 located in the vertical position is then clamped in a manipulation device 8 of the lifting island 4.
  • a preferred embodiment of the manipulation device 8 according to the invention is shown.
  • the manipulation device 8 has a tension clamp construction with tension clamps 9 for clamping the component 1.
  • the component 1 has a circular cross-section and is thus cylindrical.
  • the clamping of the component 1 in the manipulation device 8 is preferably carried out and in the embodiment ( FIG. 3 ) at the upper end of the component 1.
  • the FIG. 4 shows the fourth phase of the process according to the invention.
  • the component 1 is guided with the at least one guide rail 10 of the lifting island 4 vertically movable manipulation device 8 to the seabed 3.
  • the lower end of the component 1 is placed on the seabed 3.
  • the component 1 can be released in the manipulation device 8 with the proviso that the component 1 sinks vertically downward under its own weight to the seabed 3 and possibly sinks into the seabed 3.
  • the boring of the borehole 11 for the introduction of the component 1 into the seabed 3 takes place with a boring device 12.
  • a preferred embodiment of this boring device 12 is shown in FIG FIG. 9 shown schematically. This will be discussed below.
  • the borehole 11 is drilled successively according to the diameter of the structural element 1 into the seabed 3.
  • the component 1 is tracked with the help of the guide rail 10 vertically movable manipulation device 8.
  • the component 1 is expediently guided or held by the manipulation device 8 both with respect to the horizontal direction and with respect to the vertical direction.
  • the final depth of the device 1 has already been reached and the manipulation device 8 is still connected at this stage at the upper end of the device 1.
  • the guide rail 10 is moved with the arranged at the lower end of the guide rail 10 manipulating device 8 upwards.
  • the borehole 11 is otherwise drilled with an overcut so that the diameter of the borehole 11 is slightly larger than the outer diameter of the structural element 1.
  • the resulting gap 13 between the structural element 1 and the borehole wall is, according to a preferred embodiment of the invention, provided with a lubricant. which is liquid to viscous during the drilling process and cures after completion of the drilling process, compressed.
  • FIGS. 7a . 7b and 7c each show partial phases for three different embodiments of the method according to the invention.
  • the device 1 has been introduced according to the phases described above. In this case, it is so long that it protrudes above sea level 25. Therefore, the arrangement of another foundation element is not required and the Connecting portion 17 (transition piece) can be placed directly on the component 1, aligned and fixed in the second sub-phase. In the third phase of the Figure 7a are then the mast 18 and the other components of the wind turbine, such as rotor 19, etc. applied to the connecting portion 17.
  • the FIG. 7b shows four phases of a further procedure.
  • the component 1 is used as a plug-in element for the foundation element.
  • a foundation element in the form of a monopile 15 is introduced into the upper end of the component 1.
  • the monopile 15 engages with a lower shaft portion 16 in the hollow upper end of the component 1 a.
  • the monopile 15 is expediently fixed to the component 1 with the aid of a binder.
  • a connecting portion 17 placed on the monopile 15, aligned and fixed thereto.
  • the component 1 is used as a lost formwork.
  • a foundation element in the form of a monopile 15 is introduced into the cavity of the component 1 and fixed.
  • the connecting portion 17 is placed on the monopile 15, aligned and fixed.
  • the mast 18 and the other components of the wind turbine, such as rotor 19, etc. are applied to the connecting portion 17 as described above.
  • connection portion 17 (Transition Piece).
  • This connecting portion 17 serves primarily to compensate for positional inaccuracies of the foundation body. It is aligned and fixed on the foundation body so that the adjoining mast can be mounted exactly in the desired position, in particular with respect to its vertical orientation. If the foundation body is inserted into a previously prepared cavity as described above, it can itself be precisely aligned. The mast can then be mounted directly on the equipped with a corresponding upper end foundation body. The use of a separate connection section 17 (Transition Piece) is not required. The "Transition Piece" is integrated into the foundation body, so to speak.
  • FIG. 9 illustrates a possible embodiment of the method according to the invention.
  • the majority of the components of the drilling device 12 is received in the cavity 20 of the component 1.
  • the drill drive 21 of the drilling device 12 is arranged in this cavity 20.
  • Only the drill head 22 protrudes from the lower end of the component 1 in the borehole 11.
  • the drill head 22 may here have a not-shown cutting wheel for drilling in the full-cut method. Due to the rotating cutting wheel soil material is dissolved in the borehole 11 and then discharged.
  • Another non-illustrated embodiment of the method according to the invention provides the soil degradation in the partial section method.
  • the mining process is carried out with a rotating on a movable arm and equipped with mining tools cutting / - Schrämwalze. According to a particularly preferred embodiment and suitable for both previously described variants of the method, the drilling process loosened soil material through the cavity 20 of the component 1 upwards.
  • the corresponding delivery line 23 shown schematically.
  • FIG. 9 further shows that the cavity 20 of the device 1 is filled with liquid 24.
  • the liquid 24 fills the cavity 20 with a liquid level that is elevated in comparison with the sea level 25.
  • the walls of the wellbore 11 are hydraulically supported to prevent collapse of the borehole walls.
  • the soil material dissolved during drilling can be conveyed off hydraulically via the delivery line 23, preferably within the framework of a FIG. 9 not shown hydraulic delivery circuit.
  • the liquid 24 may be a support suspension.
  • the remaining in the annular gap 13 between the component 1 and the borehole wall support suspension is removed, unless it is curing (1-phase solution).
  • preferred mortar via the cavity 20 of the device 1 is pressed from below into the annular gap 13.
  • the support suspension based on bentonite is then displaced upwards and preferably collected and removed with a collecting ring 26 arranged above the annular gap 13.
  • the mortar hardens in the annular gap 13 and fixes the component 1 in its position.

Claims (17)

  1. Procédé pour la fabrication d'une fondation pour une installation offshore, en particulier pour une turbine éolienne offshore,
    dans lequel un élément de construction (1) sous forme d'un corps creux tubulaire est abaissé d'une position flottante avec un axe longitudinal orienté horizontalement ou avec un axe longitudinal orienté sensiblement horizontalement, l'abaissement jusqu'au fond marin (3) ou jusqu'à une position définie s'effectuant par ce biais,
    dans lequel on fait passer l'élément de construction dans une position verticale ou dans une position sensiblement verticale et l'élément de construction (1) étant maintenu à l'aide d'un dispositif de manipulation (8) dans la position verticale ou dans la position sensiblement verticale,
    dans lequel on abaisse ensuite l'élément de construction (1) avec son extrémité inférieure sur le fond marin (3), un trou foré (11) étant ensuite foré dans le fond marin (3) avec un dispositif de forage (12) à l'extrémité inférieure de l'élément de construction (1), et l'élément de construction (1) étant abaissé dans le trou de forage (11) de manière correspondante à la progression du forage et
    dans lequel l'élément de construction (1) est fixé après avoir atteint sa profondeur finale dans le trou de forage (11).
  2. Procédé selon la revendication 1, dans lequel un élément de construction (1) est transporté de manière flottante jusqu'au lieu d'utilisation ou lieu d'installation.
  3. Procédé selon l'une des revendications 1 à 2, dans lequel le dispositif de manipulation (8) est raccordé à un dispositif de déplacement ou disposé sur celui-ci, et le dispositif de déplacement étant de préférence en appui, et positionné, à l'aide de jambes de levage (5), sur le fond marin (3).
  4. Procédé selon l'une des revendications 1 à 3, dans lequel l'élément de construction (1) est tenu au niveau de sa moitié supérieure compte tenu de sa hauteur (h), de préférence au niveau du quart supérieur, par le dispositif de manipulation (8), et le dispositif de manipulation (8) présentant de préférence des éléments de serrage entre lesquels l'élément de construction (1) est monté.
  5. Procédé selon l'une des revendications 1 à 4, dans lequel, lors de l'abaissement de l'élément de construction (1) dans le trou de forage (11), en maintenant l'élément de construction (1) dans sa position, le dispositif de manipulation (8) est ravancé en direction du fond marin (3).
  6. Procédé selon l'une des revendications 1 à 5, dans lequel le dispositif de forage (12) est accueilli au moins partiellement dans l'espace creux (20) de l'élément de construction (1).
  7. Procédé selon l'une des revendications 1 à 6, dans lequel les parois du trou de forage (11) sont soutenues hydrauliquement, par exemple grâce à l'utilisation de matériaux de suspension de support disposés dans le trou de forage (11) ou l'espace creux (20) de l'élément de fondation (1) ou grâce à de l'eau de mer.
  8. Procédé selon l'une des revendications 1 à 7, dans lequel le forage est effectué selon le procédé de coupe en section pleine, et un couteau circulaire mis en place à l'extrémité inférieure de l'élément de construction (1) étant de préférence utilisé à cet effet.
  9. Procédé selon l'une des revendications 1 à 7, dans lequel le forage est effectué selon le procédé de coupe en section partielle, et un tambour de havage ou similaire en rotation sur un bras de pivotement étant de préférence utilisé à cet effet.
  10. Procédé selon l'une des revendications 1 à 9, dans lequel le matériau du fond détaché lors du processus de forage est évacué vers le haut à travers l'espace creux (20) de l'élément de construction (1).
  11. Procédé selon l'une des revendications 1 à 10, dans lequel un élément de construction (1) est utilisé avec une enveloppe extérieure et une enveloppe intérieure, et au moins une chambre creuse étant disposée entre les enveloppes extérieure et intérieure, laquelle peut être noyée ou pompée.
  12. Procédé selon l'une des revendications 1 à 11, dans lequel un lubrifiant est introduit dans la fente ou la fente annulaire (13) entre l'élément de construction (1) et la paroi du trou de forage.
  13. Procédé selon la revendication 12, dans lequel on utilise un lubrifiant, lequel est liquide ou visqueux lors du processus de forage et durci une fois le processus de forage terminé.
  14. Procédé selon l'une des revendications 1 à 12, dans lequel la fente ou la fente annulaire (13) entre l'élément de construction (1) et la paroi du trou de forage, une fois le processus de forage terminé, est soumise à une injection avec un matériau de garnissage, de préférence avec un matériau de garnissage à prise hydraulique.
  15. Procédé selon l'une des revendications 1 à 14, dans lequel, une fois le processus de forage terminé, au moins une partie des composants du dispositif de forage (12) est démantelée et en particulier au moins une partie des composants du dispositif de forage (12) réceptionnée dans l'espace creux (20) de l'élément de construction (1) étant démantelée.
  16. Procédé selon l'une des revendications 1 à 15, dans lequel l'élément de construction (1) est utilisé en tant qu'élément de fondation primaire, et un élément de fondation secondaire étant introduit dans l'extrémité supérieure de l'élément de construction (1) et étant fixé dans cette position sur l'élément de construction (1).
  17. Procédé selon l'une des revendications 1 à 15, dans lequel l'élément de construction (1) est utilisé en tant que sécurisation d'espace creux pour un élément de fondation, et l'élément de fondation étant introduit dans l'espace creux de l'élément de construction (1).
EP11158535.2A 2011-03-16 2011-03-16 Procédé de fabrication d'une fondation pour une installation offshore Not-in-force EP2500473B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DK11158535.2T DK2500473T3 (da) 2011-03-16 2011-03-16 Fremgangsmåde til fremstilling af et fundament til et offshore-anlæg
PL11158535T PL2500473T3 (pl) 2011-03-16 2011-03-16 Sposób wytwarzania fundamentu instalacji offshore
EP11158535.2A EP2500473B1 (fr) 2011-03-16 2011-03-16 Procédé de fabrication d'une fondation pour une installation offshore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11158535.2A EP2500473B1 (fr) 2011-03-16 2011-03-16 Procédé de fabrication d'une fondation pour une installation offshore

Publications (2)

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EP2500473A1 EP2500473A1 (fr) 2012-09-19
EP2500473B1 true EP2500473B1 (fr) 2013-08-21

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EP (1) EP2500473B1 (fr)
DK (1) DK2500473T3 (fr)
PL (1) PL2500473T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2930275A1 (fr) 2014-04-08 2015-10-14 Herrenknecht AG Système et procédé de fabrication d'une fondation pour un ouvrage situé dans l'eau
US11186962B2 (en) 2017-01-30 2021-11-30 Ihc Holland Ie B.V. System for use with a crane on a surface vessel

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DE102012014832A1 (de) * 2012-07-27 2014-01-30 Rwe Power Aktiengesellschaft Gründungspfahl für Offshore-Bauwerke sowie Verfahren zur Hestellung eines Gründungspfahls für Offshore-Bauwerke
NL2010845C2 (en) * 2013-05-23 2014-11-26 Ihc Hydrohammer B V An assembly of a tower and a monopile.
CN103303600B (zh) * 2013-07-08 2015-04-29 韩通（上海）新能源船舶设计研发有限公司 海上风力发电机桩基基础的绑扎装置
EP2857588A1 (fr) * 2013-10-02 2015-04-08 HOCHTIEF Solutions AG Procédé et dispositif de réalisation d'une construction, notamment d'une construction offshore
NL2013349B1 (en) 2014-08-21 2016-09-23 Ihc Holland Ie Bv Method of and system for installing foundation elements in an underwater ground formation.
NL2014952B1 (en) * 2015-06-10 2017-02-13 Vizionz Holding B V Method for installing an elongated member or an assembly thereof.
EP4273326A1 (fr) 2022-05-06 2023-11-08 Optum Computational Engineering ApS Fondation d'une superstructure, en particulier d'une éolienne, éolienne dotée de la fondation, procédé de formation d'une fondation d'éolienne

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Publication number Priority date Publication date Assignee Title
JPH073049B2 (ja) * 1986-06-02 1995-01-18 東洋建設株式会社 鋼管杭の打設工法
GB0814341D0 (en) * 2008-08-06 2008-09-10 Aws Ocean Energy Ltd Pile system
DE102009023466B4 (de) * 2009-06-02 2012-09-13 Herrenknecht Ag Verfahren und Vorrichtung zum Erstellen eines Unterwasserfundaments eines Bauwerks

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2930275A1 (fr) 2014-04-08 2015-10-14 Herrenknecht AG Système et procédé de fabrication d'une fondation pour un ouvrage situé dans l'eau
EP3333324A1 (fr) 2014-04-08 2018-06-13 Herrenknecht AG System et procèdé de fabrication d'une fondation pour un ouvrage situé dans l'eau
US11186962B2 (en) 2017-01-30 2021-11-30 Ihc Holland Ie B.V. System for use with a crane on a surface vessel

Also Published As

Publication number Publication date
DK2500473T3 (da) 2013-12-02
EP2500473A1 (fr) 2012-09-19
PL2500473T3 (pl) 2014-03-31

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