EP2766528B1 - Schablone - Google Patents

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Publication number
EP2766528B1
EP2766528B1 EP12784085.8A EP12784085A EP2766528B1 EP 2766528 B1 EP2766528 B1 EP 2766528B1 EP 12784085 A EP12784085 A EP 12784085A EP 2766528 B1 EP2766528 B1 EP 2766528B1
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EP
European Patent Office
Prior art keywords
pile
sleeve
template
guide
belt
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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
EP12784085.8A
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English (en)
French (fr)
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EP2766528A1 (de
Inventor
Christophe Barraux
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Norwind Installer As
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Norwind Installer As
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Filing date
Publication date
Application filed by Norwind Installer As filed Critical Norwind Installer As
Publication of EP2766528A1 publication Critical patent/EP2766528A1/de
Application granted granted Critical
Publication of EP2766528B1 publication Critical patent/EP2766528B1/de
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
    • E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
    • E02D13/04—Guide devices; Guide frames
    • 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

Definitions

  • the present invention relates to a retrievable pre-piling template for offshore wind turbine foundations, comprising a plurality of pile guide sleeves interconnected by connection elements, where said pile guides sleeves are arranged to rest on the ocean floor and to receive a pile.
  • the piles are driven into the seabed before the jacket is installed onto the piles.
  • the piles are driven into the seabed after the jacket is lowered down on the seabed.
  • Pre-piled jackets bring the huge benefit of eliminating most of the jacket leveling challenge.
  • jackets When installed, and even before the grout has cured, jackets are seated on a stable support offered by the piles. If the piles are properly leveled (all piles sticking up at the same height), then no further action has to be taken and the jacket can be installed on top of the piles identified as being sufficiently leveled. If the piles are not sufficiently leveled, some shimming can be added to make up for the height variation. Still, the jacket leveling is straight, safe, and easy.
  • piles must be installed at a precise location (deviation in footprint can for instance be:
  • the jacket legs usually penetrate the piles up to 5 or 7 m, and requirements of pile verticality tilt are quite strict in order to maintain an acceptable distance (grout thickness) between the jacket leg and pile wall all along the grouted connection.
  • EP2309063A corresponds to Norwegian patent application NO20093082 , applicant Aker Jacket Technology AS.
  • the document discloses a retrievable template for piles, used in connection with offshore windmills.
  • the template of EP2309063A is a rectangular lattice structure with a pile guide in each corner, said pile guides being welded to the lattice structure.
  • the pile guides are equipped with hydraulic actuators connected to bed plates and are arranged to level the pile guides with respect to the ocean floor, while at the same time the inner part, receiving the pile, is kept in a mainly vertical position. Said hydraulic actuators are used to also horizontally level the template.
  • the pile guide is at the lower part equipped with a conical tubular element surrounding the tubular pile guide, and in where the conical tubular element is connected to the bed plates, and can move with respect to the lower part of the pile guide.
  • the system can further be equipped with cameras for surveillance of pile installation. Cameras can also be used to measure the penetration of the piles, and hence also the height above the ocean floor, by measuring the distance from an opening in the pile guide and to a specific point on the hydraulic hammer.
  • the main technical features of the present invention which at least can be regarded as a "doughnut" shape of lattice structure, in where at least three or four pile guides can be releasable mounted, a moving guide belt mounted within the sleeve, and a pile measuring system, comprising a camera and depth sensor, and using marking on the pile, are thus not known from EP2309063A , although a camera measuring system is disclosed.
  • the system is based on a subsea piling template, a hammer, a follower and a noise mitigation system as the main system equipment pieces.
  • the template acts as a pile guide when the piles are hammered into the seabed. Except for the pre-piling template according to the invention, the rest of the system and the method for using such a system is regarded as known to a man skilled in the art.
  • the template according to the invention is designed for subsea operations down to 60 meters, at least, and to withstand the repetitive strain caused by maybe hundreds of installations per year.
  • the template is reused from one location to the other.
  • the template may guarantee accurate location of the piles, their verticality and the equal level of the piles within the following desired tolerances (as examples):
  • the mobilized ROV no longer acts as the onboard "workhorse” but as a powerful backup tool giving a lot more possibilities when it comes to anticipating the unforeseen.
  • the present invention includes several new features over the traditional installation methods.
  • the template is equipped with measuring devices for online reporting of all main information to the installation vessel and final verification of pile stick up and verticality.
  • the template is equipped with high technology observation package providing the top side operators and crane driver with a live and precise image of the subsea operation enabling efficient installation regardless any condition of subsea visibility.
  • the present pre-piling template can be installed from a fixed rig, a jack-up vessel or most preferably from a floating vessel.
  • a floating vessel saves time losses due to jacking up and down, waiting on weather before jacking up and down and transiting at low speed.
  • the present template is as mentioned preferably designed with a central "doughnut" of lattice structure giving support to dismountable pile guiding sleeves mounted on it, with for instance flanged connections.
  • the sleeves are integrated to the structure and the template is manufactured and structured as a monoblock.
  • the pile guide sleeves can be arranged as self supporting units connected to a central structure. By doing so, the sleeves can be individually moved, modified, taken off or even damaged without affecting anything of the total global structure. Due to this original O-ring (doughnut) structure design and due to the fact that sleeves can be attached to the structure on different locations, the present template can be arranged to give support to either 3 or 4 sleeves, or more or less sleeves for that matter. Furthermore, by inserting extension pieces, one can modify the PCD of the sleeve arrangement. Extensions pieces do not, in the simplest form, have to be more than straight tubes inserted in the flanges to link the sleeve to the ring structure.
  • a retrievable pre-piling template for offshore wind turbine foundations comprises a plurality of pile guide sleeves interconnected by connection elements, where said pile guides sleeves are arranged to rest on the ocean floor and to receive a pile, wherein said connection elements are assembled to form a continuous circular O-ring structure, and a number of the pile guide sleeves are arranged to be releasable mounted to the structure.
  • the pile guide sleeves can be individually arranged to be mounted to, and dismounted from, a respective selected assembly point on the structure, thereby providing support for a desired number of sleeves.
  • the sleeves can be mounted to the structure in respective assembly points, by a number of connections arms bolted or welded to the structure, and/or a number of connections arms mounted on flanges.
  • the connections arms may be exchangeable, or extendable, wherein pitch circle diameter of the template can be adjusted.
  • the pile guide sleeves can comprise at least one moving guide belt assembly, said guide belt assembly being arranged to move from an active pile guide position to an inactive position with no pile guiding effect, thereby releasing the template from the piles.
  • the pile guide assembly can comprises a circular belt surrounding the sleeve, said belt being connected to a number of pressure cylinders for said movement, and the belt can be equipped with a number of guide wedges arranged to extend into the sleeve through a corresponding number of slits in the sleeve.
  • the pressure cylinders can be individually controlled, in order to move and tilt the belt, and thus the guide wedges, with respect to the sleeve during said movement of the belt.
  • the guide wedge can comprise an elongated main body with an abutment edge, said main body being narrower towards a distal end, and the wedge can comprise a connection heel, in where the heel is extending through the slit and is connected to the belt.
  • Said abutment edge, against the pile can have a rounded surface
  • a second abutment edge, against the inside of the sleeve can have a rounded surface, thus allowing the wedges to roll against respective surfaces of the pile and sleeve.
  • the pile guide sleeve can comprise a pile height measuring apparatus, said apparatus being mounted on the outside of the sleeve and comprises a camera and a depth sensor movable with respect to an aperture in a sleeve wall of the sleeve, and in where the camera is arranged to register a marking on the pile, and the depth sensor is arranged to register the depth of the camera
  • the camera and the depth sensor can be mounted to a piston rod of a pressure cylinder, and be movable with respect to the aperture in the sleeve wall.
  • the piston rod can be movable arranged in a guide rail.
  • the pile guide sleeve may comprise a depth sensor, said depth sensor can measure the level of the template.
  • the depth sensors of each pile guide sleeve can be arranged at a predetermined distance from the top of the sleeve, wherein the exact depth of all sleeves can be measured.
  • Figure 1 shows a typically installation process of piles for a subsea jacket foundation used with offshore wind turbines, or similar structures.
  • a pre-piling template is lowered from the sea level 82 and down to the sea floor 80, where after the template is leveled.
  • piles 70 are forced into the sea floor by using for instance a hammer 72 connected to a follower 74.
  • a noise mitigation system may also be used. Said process is assumed known for a man skilled in the art, and is thus not further explained.
  • Figures 2 to 5 shows a pre-piling template 10 according to the invention.
  • the template is configured with a circular "doughnut" shaped O-ring structure 20 comprising a number of connection element 14, 16, 18.
  • the number of connection elements may vary dependent on desired strength and size of the template 10.
  • the connection elements 14, 16, 18 will normally be assembled as a lattice structure, or the like.
  • a circular O-ring lattice structure will further give better tensile strength and stress to the structure, and improve resistance to torsional forces, then a rectangular structure known from the prior art.
  • the structure 20 is further equipped with a number of pile guide sleeves 12, in the example in figure 2 with four sleeves 12 and in the example in figures 4 and 5 with three sleeves 12.
  • the structure 20 can be equipped with a desired number of pile guides sleeves 12, dependent on the configuration of the jacket foundation for the wind turbine. Further, it is also possible to change the configuration of the sleeves, in case changes must be made on site due, or in case of using the template with a another jacket foundation having a different footprint, or another multimember foundation.
  • the sleeves 12 can thus be releasable connected to and dismounted from the O-ring structure by bolting, welding or any other fastening means, and dismounted by unscrewing, torch cutting, sawing, etc.
  • the connection points for the sleeves on the O-ring structure may constitute respective assembly points 20a.
  • a number of connections arms 22 can be used, which may be bolted or welded to the structure 20, and/or a number of connections arms 24 may in addition be mounted to for instance flanges 26 in the assembly points 20a.
  • the connection can thus for instance be made stiff by four diagonal arms (connection arms 22) bolted on each side of the assembly point 20a and two straight arms (connection arms 24) mounted on flanges 26, as shown in figures 6a-6c .
  • connection arms 22, 24 can be shortened or lengthened (by re-fabrication or cut and welded) and extension pieces can be added between the sleeve flanges and the main structure flanges.
  • the connections arms 22, 24 can be extendable, for instance by using telescopic arms or by other means of extendable arms.
  • diagonal arms should be reinforced with diagonal beams in order to extend the lattice structure.
  • the pile guide sleeves 12 may further be quipped with a leveling system 90, comprising several pressure cylinders 92 arranged to level a lower bed plate 94 on the sleeve 12.
  • a leveling system 90 comprising several pressure cylinders 92 arranged to level a lower bed plate 94 on the sleeve 12.
  • the pile guide sleeves 12 are preferably equipped with one or more moving guide belts assemblies 40, according the present invention.
  • the guide belt assembly 40 is capable to move from an active pile guide position to an inactive position with no pile guiding effect, thereby releasing the template 10 from the piles 70.
  • the pile guide assembly 40 comprises a circular belt 42, said belt having a larger diameter then the outside diameter of the sleeve 12.
  • the belt 40 can be moved up and down on the outside of the sleeve 12 by a number of pressure cylinders 46, for instance hydraulic cylinders.
  • the guide belt assembly 40 can be used with any kind of pile guide sleeves, not only the ones disclosed in this specification.
  • the guide belt 42 is further equipped with a number of guide wedges 44.
  • the innovative guide belt assembly 40 aims to loose the guiding wedges 44 when they are blocked between the sleeve 12 and the pile 70 pressing on.
  • the guide wedges 44 extend into the sleeve 12 through a corresponding number of slits or apertures 48 in the sleeve 12.
  • Figure 10 shows a cross sectional view of the sleeve 12 with the aperture 48 and a wedge 44 inserted in the aperture.
  • the left hand side of the drawing shows the inside surface of the sleeve, and the outside surface of the pile 70 is indicated on the right hand side.
  • the guide wedge 44 comprises an elongated main body 50 with an first abutment edge 52 for abutment with the outside surface of the pile 70, and a second abutment edge 58 for abutment with the inside surface of the sleeve 12.
  • the main body 50 of the wedge is preferable narrower towards a distal end 56a, and may also be narrower toward the other end 56b, then the middle part of the main body.
  • the wedge 44 further comprises a heel 54, in where the heel 54 is extending through the slit 48 and is connected to the belt 42.
  • the abutment edge 52, against the pile 70, may have a rounded surface
  • the second abutment edge 58, against the inside of the sleeve 12 may also have a rounded surface, thus allowing the wedges 44 to roll against respective surfaces of the pile 70 and sleeve 12.
  • the pressure cylinders 46 can be individually controlled, in order to move and tilt the belt 42, and thus the guide wedges 44, with respect to the sleeve 12 during said movement of the belt 42, thus forcing it in either a low position in which the guiding is active or an up position in which the belt can freely "follow" the pile with no guiding effect.
  • the belt 42 is preferable not deformable.
  • FIG. 11a Movement of the moving guide belt 42 is shown in figures 11 a to 11d.
  • the belt 42 is in a lower position, in where the guide wedges 44 acts like passive wedges between the pile and the inside surface of the sleeve 12.
  • the guide belt cylinders 46 can be fitted with rod position feedback so that an operator knows at anytime if the belt is secured in a low position or left free to move in a high position.
  • the moving guide belt 42 When in use (during for instance the first meters of pile drive), the moving guide belt 42 is wedged in a fixed position between the pile 70 and the sleeve wall 12a, where the fitting is tight so that no move is allowed. When not in use (the rest of the time), the moving guide belt 42 is moved up until it reaches a position in which it suddenly gains some freedom of move.
  • the freedom of move may be relatively small, but being sufficient to release the pressure and thus to disengage the template.
  • An example of moving the guide belt 42 may be as follows.
  • the belt starts rotating around the one guide wedge 44 wedged between the pile and the sleeve.
  • the rotation goes with no friction as the guide wedges rolls on the sleeve wall in the same time as it rolls on the pile wall.
  • the pressure cylinders 46 continuously act on the belt 42 to lift it up. At a certain stage, the friction forces can be overcome by the lifting forces and the belt 42 can slide up.
  • Figure 11a shows the belt 42 in a lower position
  • figure 11b shows the belt in an intermediate and tilted position
  • Figures 11c and 11d show the belt 42 in an upper position, free to move with respect the slits 48 and the pile 70.
  • the pile guide sleeve 12 can further be equipped with a pile height measuring apparatus 60, as shown in figure 12 .
  • the pile height measuring apparatus can be used with any kind of pile guide sleeves, not only the ones disclosed in this specification.
  • the apparatus 60 is mounted on the outside of the sleeve 12 and comprises a camera 64 and a depth sensor 66 movable with respect to an aperture 12b in a sleeve wall 12a of the sleeve, and in where the camera 64 is arranged to register a marking 70a on the pile 70, and the depth sensor is arranged to register the depth of the camera 64.
  • the camera 64 and the depth sensor 66 are preferably mounted to a piston rod 62a of a pressure cylinder 62, and are thus movable with respect to the aperture 12b in the sleeve wall 12a.
  • the piston rod 62a is movable arranged in a guide rail 68, in order to secure the movement of the rod 62a.
  • Piles should be individually marked with a visible band 70a to serve as a visible marker easily seen by the operator.
  • a visible band 70a By moving the camera 64 up and down, one can visually scan the pile surface over a length of for instance about 1m, seeking for the marking painted on the piles at a known height. Once the mark is found and the camera is horizontally aligned with this mark, the depth sensors indicates at which depth the camera is, which at the same tells at which depth the pile mark is. It should be noted that the scan for the band 70a, and the alignment of the camera, may be automatically performed by scanning means.
  • the pile height measuring apparatus may also allow measure of the template level.
  • the template leveling can be checked at any time by retracting all four depth sensors (and cameras) to the zero stroke position of the cylinders supporting them. Then, depth sensors are not used to measure any pile height, but just to measure the exact depth of all four sleeves. When the depths are found equal, the template is leveled.
  • the pressure signals given by the sensors are then recorder and processed to filter out the "noise" of the local pressures variations due to wave. Filtering is mainly done by averaging the signal over the time.
  • the template 10 may further be equipped with any known means for the installation and retrieval procedure, such as lifting ears, support for HPU, support for surveillance cameras, etc.

Claims (14)

  1. Wieder entnehmbare Prepiling-Rammschablone (10) für eine Offshore-Windenergieanlage mit einer Mehrzahl von Pfahlführungshülsen (12), die durch Verbindungselemente (14, 16, 18) miteinander verbunden sind, wobei die Pfahlführungshülsen (12) geeignet sind, auf dem Meeresboden (80) aufzuliegen und einen Pfahl aufzunehmen, dadurch gekennzeichnet, dass
    - die Verbindungselemente (14, 16, 18) so angebracht sind, dass sie eine durchgängige kreisförmige O-Ringstruktur (20) aufweisen, und
    - eine Anzahl der Pfahlführungshülsen (12) geeignet ist, an der Struktur (20) lösbar angebracht zu sein.
  2. Prepiling-Rammschablone (10) nach Anspruch 1, dadurch gekennzeichnet, dass die Pfahlführungshülsen (12) einzeln dazu geeignet sind, an einem jeweiligen ausgewählten Montagepunkt (20a) an der Struktur (20) angebracht und entfernt zu werden, wodurch eine Halterung für eine gewünschte Anzahl an Hülsen (12) vorgesehen ist.
  3. Prepiling-Rammschablone (10) nach Anspruch 1, dadurch gekennzeichnet, dass die Hülsen (12) durch eine Anzahl von Verbindungsstreben (22), die an der Struktur (20) verschraubt sind, und/oder eine Anzahl von Verbindungsstreben (24), die an Flanschen (26) angebracht sind, an der Struktur (20) an jeweiligen Montagepunkten (20a) angebracht sind.
  4. Prepiling-Rammschablone (10) nach Anspruch 3, dadurch gekennzeichnet, dass die Verbindungsstreben (22, 24) austauschbar oder verlängerbar sind, wobei der Lochkreisdurchmesser der Schablone dazu geeignet ist, angepasst zu werden.
  5. Prepiling-Rammschablone (10) nach Anspruch 1, dadurch gekennzeichnet, dass die Pfahlführungshülsen (12) mindestens eine bewegbare Führungsgurtanordnung (40) aufweisen, wobei die Führungsgurtanordnung (40) geeignet ist, sich von einer aktiven Pfahlführungsposition zu einer inaktiven Position ohne Pfahlführungseffekt zu bewegen, wodurch die Schablone (10) von den Pfählen (70) gelöst wird.
  6. Prepiling-Rammschablone (10) nach Anspruch 5, dadurch gekennzeichnet, dass die Pfahlführungsanordnung (40) einen kreisförmigen Gurt (42) umfasst, der die Hülse (12) umgibt, wobei der Gurt (42) mit einer Anzahl an Druckzylindern (46) zum Bewegen verbunden ist, und wobei der Gurt (42) mit einer Anzahl an Führungskeilen (44) ausgestattet ist, die geeignet sind, sich durch eine entsprechende Anzahl an Schlitzen (48) in der Hülse (12) in die Hülse (12) zu erstrecken.
  7. Prepiling-Rammschablone (10) nach Anspruch 6, dadurch gekennzeichnet, dass. die Druckzylinder (46) geeignet sind, einzeln gesteuert zu werden, um während des Bewegens des Gurtes (42) den Gurt (42), und dadurch die Führungskeile (44), in Bezug auf die Hülsen zu bewegen und zu neigen.
  8. Prepiling-Rammschablone (10) nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass der Führungskeil (44) einen länglichen Hauptkörper (50) mit einer Widerlagekante (52) aufweist, wobei der Hauptkörper (50) zu dem Distalende (56a) hin schmäler wird und der Keil (44) einen Absatz (54) aufweist, wobei sich der Absatz (54) durch den Schlitz (48) hindurch erstreckt und mit dem Gurt (42) verbunden ist.
  9. Prepiling-Rammschablone (10) nach Anspruch 8, dadurch gekennzeichnet, dass die Widerlagekante (52), die dem Pfahl (70) gegenüberliegt, eine gerundete Oberfläche hat, und dass eine zweite Widerlagekante (58), die dem Inneren der Hülse (12) gegenüberliegt, eine gerundete Oberfläche hat, wodurch die Keile (44) an jeweiligen Oberflächen des Pfahls (70) und der Hülse (12) rollen können.
  10. Prepiling-Rammschablone (10) nach Anspruch 1, dadurch gekennzeichnet, dass die Pfahlführungshülse (12) eine Pfahlhöhenmessvorrichtung (60) aufweist, wobei die Vorrichtung (60) an der Außenseite der Hülse (12) angebracht ist und eine Kamera (64) und einen Tiefensensor (66) aufweist, die in Bezug auf eine Öffnung (12b) in einer Hülsenwand (12a) der Hülse bewegbar sind, und wobei die Kamera (64) geeignet ist, eine Markierung (70a) an dem Pfahl (70) zu registrieren und der Tiefensensor geeignet ist, die Tiefe der Kamera (64) zu registrieren.
  11. Prepiling-Rammschablone (10) nach Anspruch 10, dadurch gekennzeichnet, dass die Kamera (64) und der Tiefensensor (66) an einer Kolbenstange (62a) eines Druckzylinders (62) angebracht sind, und daher in Bezug auf die Öffnung (12b) in der Hülsenwand (12a) bewegbar sind.
  12. Prepiling-Rammschablone (10) nach Anspruch 11, dadurch gekennzeichnet, dass die Kolbenstange (62a) in einer Führungsleiste (68) bewegbar angebracht ist.
  13. Prepiling-Rammschablone (10) nach Anspruch 1, dadurch gekennzeichnet, dass die Pfahlführungshülse (12) einen Tiefensensor (66) aufweist, wobei der Tiefensensor (66) geeignet ist, den Pegel der Schablone (10) zu messen.
  14. Prepiling-Rammschablone (10) nach Anspruch 13, dadurch gekennzeichnet, dass die Tiefensensoren (66) jeder Pfahlführungshülse (12) von der Oberkante der Hülse (12) aus mit einem vorbestimmten Abstand angeordnet sind, wobei die exakte Tiefe aller Hülsen (12) gemessen werden kann.
EP12784085.8A 2011-09-23 2012-09-18 Schablone Not-in-force EP2766528B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20111294A NO333643B1 (no) 2011-09-23 2011-09-23 Opptakbar pre-paelingsramme for offshore vindturbinfundamenter
PCT/NO2012/000052 WO2013043055A1 (en) 2011-09-23 2012-09-18 Template

Publications (2)

Publication Number Publication Date
EP2766528A1 EP2766528A1 (de) 2014-08-20
EP2766528B1 true EP2766528B1 (de) 2015-04-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12784085.8A Not-in-force EP2766528B1 (de) 2011-09-23 2012-09-18 Schablone

Country Status (3)

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EP (1) EP2766528B1 (de)
NO (1) NO333643B1 (de)
WO (1) WO2013043055A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN103953062A (zh) * 2014-05-19 2014-07-30 广东明阳风电产业集团有限公司 一种带基础环调平功能的导管架结构
BE1025255B1 (nl) 2017-09-22 2018-12-19 Jan De Nul N.V. Herbruikbare offshore installatietemplate en gebruik daarvan
EP3584369A1 (de) 2018-06-18 2019-12-25 Vallourec Deutschland GmbH Vorrichtung zum nivellieren einer offshore-fundamentkonstruktion
PL3584371T3 (pl) * 2018-06-18 2022-12-19 Vallourec Deutschland Gmbh Urządzenie do sprawdzania nośności pala w konstrukcji fundamentu morskiego
CN109680705B (zh) * 2018-12-21 2024-01-19 兰州交通大学 一种接触网支柱基础防冻胀系统及其制备工艺
US20210340716A1 (en) * 2020-04-29 2021-11-04 Dylan Swenson Alignment device and methods
EP4232683A1 (de) 2020-10-23 2023-08-30 Itrec B.V. Vorrichtung zum führen eines pfahls in den meeresboden und zugehörige verfahren

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2094856B (en) 1981-01-28 1984-12-19 Southeastern Drilling Services Slip assembly for subsea template
GB0902289D0 (en) * 2009-02-12 2009-03-25 Marine Current Turbines Ltd Methods for installing pin-piled jacket type structures at sea
NO20093082A1 (no) 2009-10-01 2011-04-04 Aker Jacket Technology As Anordning, system og fremgangsmate for foring av peler i en havbunn

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Publication number Publication date
NO333643B1 (no) 2013-07-29
WO2013043055A1 (en) 2013-03-28
EP2766528A1 (de) 2014-08-20
NO20111294A1 (no) 2013-03-25

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