EP2554752B1 - Dämpferrahmen für Offshore-Pfeilerinstallation - Google Patents

Dämpferrahmen für Offshore-Pfeilerinstallation Download PDF

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Publication number
EP2554752B1
EP2554752B1 EP11176100.3A EP11176100A EP2554752B1 EP 2554752 B1 EP2554752 B1 EP 2554752B1 EP 11176100 A EP11176100 A EP 11176100A EP 2554752 B1 EP2554752 B1 EP 2554752B1
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EP
European Patent Office
Prior art keywords
pile
installation frame
frame
positioning devices
cylindrical wall
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.)
Active
Application number
EP11176100.3A
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English (en)
French (fr)
Other versions
EP2554752A1 (de
Inventor
Johannes-Petrus Breedeveld
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.)
Seaway Heavy Lifting Engineering BV
Original Assignee
Seaway Heavy Lifting Engineering BV
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 Seaway Heavy Lifting Engineering BV filed Critical Seaway Heavy Lifting Engineering BV
Priority to DK11176100T priority Critical patent/DK2554752T3/en
Priority to EP11176100.3A priority patent/EP2554752B1/de
Publication of EP2554752A1 publication Critical patent/EP2554752A1/de
Application granted granted Critical
Publication of EP2554752B1 publication Critical patent/EP2554752B1/de
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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
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers
    • E02D7/14—Components for drivers inasmuch as not specially for a specific driver construction
    • 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
    • E02D13/005—Sound absorbing accessories in piling
    • 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
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers

Definitions

  • the invention relates to a pile installation frame comprising one or more tubular noise reduction elements having a cylindrical wall.
  • the invention also relates to a method of driving a pile into the sea bed using such a pile installation frame.
  • a silencer frame in the form of a tripod having three interconnected hollow cylindrical legs, which frame is transported in a horizontal orientation on a barge to the installation site where it is placed into a vertical position onto the sea bed for driving piles through the hollow legs of the frame.
  • a frame according to the preamble of claim 1 is known from WO 2011/046430 A1 .
  • cylindrical walls of the pile installation frame according to the invention are along their length provided with spaced-apart positioning devices that are radially retractable with respect to the centerline, for centering a pile driven through the tubular element along the center line.
  • the centering devices may comprises retractable elements that are hydraulically, pneumatically or electrically driven to be displaceable in a radial direction from the inside of the cylindrical walls towards the center line.
  • the pile When starting driving a pile into the sea bed, the pile is placed within the confines of the cylindrical wall and all centering members are extended to press against the pile. In this way, the pile is aligned along the center line of the cylindrical wall, with its top part extending above water level.
  • the piling hammer is placed on the pile head and the pile and hammer are driven downward into the space of the cylindrical wall.
  • the upper positioning devices are retracted when the pile reaches the axial direction directly above the upper positioning devices to allow the pile hammer to pass along these upper positioning devices when the pile is driven down into the sea bed.
  • the radial displaceability of the positioning devices furthermore allows accurate centering of different diameter piles, which piles may range in diameter from 1 m to 2.5 m.
  • the positioning devices may with one end be connected to the inner surface of the cylindrical wall and can comprise at a free end a sliding or rotating member for providing a sliding or rotating contact with a pile that is driven along the center line.
  • the positioning devices may for instance comprise a bar linkage, a scissor mechanism, a linear motor or the like, connected with one side to the inner wall and provided with hydraulic, pneumatic or electrical power and control leads that extend to above the water surface.
  • a wheel or slide pad is provided at the free ends of the extendable element of the positioning device for rotatingly or slidingly engaging with the outer surface of the pile when it is driven into the sea bed.
  • the wheel or slide pad may be formed of reinforced natural or synthetic rubber, PTFE, nylon or combinations thereof to result in reduced friction upon contact with the moving pile.
  • the installation frame comprises two or more cylindrical walls, interconnected via frame members, the frame comprising a lifting member attached to the frame members for connection to a lifting device.
  • a foundation pile configuration comprising multiple piles, can be applied onto the sea bed in a single step, for instance from a crane vessel having a crane or an A-frame for lifting of the frame member and for lowering it on to the sea bed and releasing the frame at the site of deployment.
  • the weight of the installation frame may range from 500 to 5000 tons, such as for instance about 1200 ton.
  • the pile installation frame according to the invention may be provided with ballastable buoyancy tanks, and can be towed to the installation site, after which the frame is ballasted such that the cylindrical chambers come to rest on the sea bed.
  • the installation frame comprises at the bottom a leveling member for instance comprising a hydraulic cylinder or an expandable body of adjustable volume, connected to a volume control member above water level for leveling the cylindrical wall by varying the volume of the member.
  • a leveling member may comprise a plate that rests near the lower edge of the cylindrical chamber on the sea bed.
  • the cylinder or the expandable body and may be actuated or be inflated with air, water or mud to increase its volume, respectively, in order to result in a vertical orientation of the center line of the cylindrical chambers and a consequent vertical application of the foundation piles into the sea bed.
  • the cylindrical wall comprises an inner and an outer wall and is divided into compartments, the compartments being connected to a pressurization device for adjusting the pressure in the compartments depending on the water depth of the compartment.
  • the chambers may have a height of 20 meters or more, and may have compartmented hollow walls for effective damping of noise. By pressurizing each compartment to a level corresponding to its depth below water, the water pressure forces may be equalized and deformations due to the water pressure on the compartments may be prevented.
  • Fig. 1 shows a cross-sectional view of a tubular noise reduction element 1 comprising a cylindrical wall 2 resting with a lower end 6 on the sea bed 3 and projecting with an upper end 4 above water level 5.
  • a foundation pile 7, for instance for forming a foundation of an offshore wind turbine, is placed along a longitudinal center line 8 of the cylindrical noise reduction element and is hammered into the sea bed 3 via the hydraulically operated hammer 10.
  • Control lines for the hammer 10 are attached to a working vessel that is not shown in the drawing.
  • the pile 7 is guided inside the cylindrical wall by extendable positioning devices 12,13 and 14. These positioning devices may comprise a scissor arm 15 with at the end a guide wheel 16.
  • the scissor arms of the positioning devices 12-14 may be electrically, hydraulically or pneumatically controlled from the working vessel.
  • middle positioning devices 13 are retracted when the hammer passes along the mid part of the cylindrical wall 2.
  • the arms 15 of the positioning devices 12,13,14 are connected to electrical, hydraulic or pneumatic drive members 17,18,19 that are in turn attached to control lines running to a working vessel, or which may be operated via ultrasonic commands from the working vessel.
  • the cylindrical walls 2 may be double-walled having an inner wall 20 and an outer wall 21.
  • the space between the walls 20, 21 may be filled with an insulating foam, air bubbles or may be empty for achieving the desired reduction of noise generated by the hammer 10 impacting on the pile 7.
  • air bubbles may be formed near the lower end 6 in order to provide further noise reduction.
  • Figure 4 shows a top view of a pile installation frame 30, having three cylindrical walls 31,32, 33 interconnected in a triangular configuration by frame members 35,36,37.
  • Figure 5 shows a square arrangement of cylindrical walls in an installation frame 30 for placing four foundation piles in a rectangular pattern. Air bubbles may be formed inside the space of the cylindrical walls and/or in the space between the cylindrical walls.
  • Fig. 6 shows a working vessel 40 supporting a 2000 ton crane 41 that lifts the installation frame 42 via a cable 43 attached to lifting member 44, such as an eye or shackle, on the frame 42.
  • lifting member 44 such as an eye or shackle
  • the cable 43 may be released from the eye 44 and the crane 41 may be used for lowering a pile inside the cylindrical walls 45, 46 and hammering it down into the sea bed.
  • Fig. 7 shows an alternative embodiment of a working vessel 40 towing an installation frame 42 that is provided with a ballastable tank 47 to the site of deployment.
  • a ballast control unit 49 on the vessel 40 that is connected to the ballast tank 47 via a schematically indicated electrical and pneumatic control line 48, effects deballasting of the tank 47 such that the cylindrical chambers come to rest on the sea bed.
  • the piling operation can be effected from another work vessel having a crane and control units for operating the hammer or from the same working vessel 40.
  • Fig. 8 shows an embodiment in which the cylindrical walls 2 are supported on a leveling member in the form of mud mats 50, 51, the volume of which is controlled via inclination control unit 52 on the working vessel 40 and electrical, hydraulical and/or pneumatic volume control line 53.
  • the control unit 52 insures that the walls 2 have a vertical orientation on the sea bed, such that the pile upon being guided by the positioning devices 12,13 and 14, is driven vertically downwards.
  • the drive members 17, 18 and 19 of the positioning devices 12,13 and14 are controlled, in dependence on the vertical position of the hammer 10, by a positioning control unit 54 and a schematically indicated positioning control line 55.
  • the respective positioning device is retracted by control unit 54 such that the hammer 10 can pass.
  • the hammer 10 is operated from the working vessel 40 via hammer control line 57.
  • Fig. 9 shows an embodiment in which the cylindrical wall 2 comprises an inner wall 20 and an outer wall 21, which walls define a hollow space that is divided into compartments 60, 61, 62 and 63.
  • Each compartment is connected to a pressure control unit 65 on the working vessel 40 for being pressurized with air, depending on the depth of the compartment below water level, in order to withstand the prevailing water pressure.
  • air nozzles 66 may be provided for forming a curtain of bubbles 70 inside the cylindrical wall 2 for further noise reduction.
  • a bubble control unit 67 on the working vessel 40 controls the bubble curtain via schematically indicated bubble control line 71.
  • Fig. 10 shows the lower side of a cylindrical wall 32 of a frame 37, resting on the sea bed, connected via flanges 74, 75 to a sleeve 72 housing a cylinder 73 and an extension body 76.
  • the extension body is connected to a plate 50, that is also in the art referred to as "mud mat”.
  • the hydraulic cylinder 73 is connected via the leveling control line 53 to inclination control unit 52 on the vessel. By expansion or contraction of the cylinder 73, the plate 50 is raised or pressed against the sea bed, and the inclination of the frame 37 relative to a vertical position can be controlled.
  • a hydraulic cylinder 73 it is also possible to use an expandable body situated below the plate 50 and being inflatable by air, nitrogen or water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Claims (9)

  1. Pfahlinstallationsrahmen (30) umfassend ein oder mehrere röhrenförmige Geräuschreduktionselemente (1, 31, 32, 33) mit einer zylindrischen Wand (2) und einer Mittellinie (8), wobei die Elemente (1, 31, 32, 33) entlang ihrer Länge mit voneinander beabstandeten oberen und unteren Positionierungsvorrichtungen (12, 13, 14) bereit gestellt sind, die in Bezug zur Mittellinie radial einziehbar sind, um einen Pfahl (7) zu zentrieren, der entlang der Mittellinie (8) durch das röhrenförmige Element (1, 31, 32, 33) getrieben wird, dadurch gekennzeichnet, dass die obere Positionierungsvorrichtung (12) einziehbar ist, um einem Hammer (10) zu erlauben in einer axialen Richtung zu passieren während die unteren Positionierungsvorrichtungen (13, 14) mit dem Pfahl in Verbindung bleiben.
  2. Pfahlinstallationsrahmen (30) nach Anspruch 1, wobei die Positionierungsvorrichtungen (12, 13, 14) mit einen Ende mit der zylindrischen Wand (2, 20) verbunden sind und an einem freien Ende ein gleitendes oder rotierendes Glied (16) zum Bereitstellen eines gleitenden oder rotierenden Kontakts mit einem Pfahl (7), der entlang der Mittellinie (8) getrieben ist, umfasst.
  3. Pfahlinstallationsrahmen (42) nach Anspruch 1 oder 2, umfassend zwei oder mehrere Geräuschreduktionselemente (1, 31, 32, 33), die durch Rahmenglieder (35, 36, 37) miteinander verbunden sind, wobei der Rahmen ein Hebeglied (44) umfasst, dass an den Elementen (1, 31, 32, 33) befestigt ist, für eine Verbindung mit einer Hebevorrichtung (41, 43).
  4. Pfahlinstallationsrahmen (30) nach Anspruch 1 oder 2, wobei der Rahmen mit zumindest einem mit Ballast versehbaren Schwimmtank (47) versehen ist.
  5. Pfahlinstallationsrahmen (30, 42) nach einem der vorangehenden Ansprüche, umfassend nahe der Unterseite (6) der zylindrischen Wand (2) ein erweiterbares oder versetzbares Unterstützungsglied (50, 51, 73) zum Kontaktieren des Meeresbodens, und verbunden mit einer Neigungssteuerungseinheit (52) über dem Wasserspiegel zum Einstellen der Position der Platte.
  6. Pfahlinstallationsrahmen (30, 42) nach Anspruch 5, wobei das Nivellierungsglied (50, 51) einen erweiterbaren Körper, der mit einer Platte verbunden ist, umfasst, wobei die Neigungssteuerungseinheit (52) ausgebildet ist, das Volumen des erweiterbaren Körpers zu variieren.
  7. Pfahlinstallationsrahmen (30, 42) nach Anspruch 5, wobei das Nivellierungsglied (50, 51) einen hydraulischen Zylinder (73) umfasst, der mit einer Platte verbunden ist, wobei die Neigungssteuerungseinheit (52) ausgebildet ist, den Zylinder zu erweitern oder zurückzuziehen.
  8. Pfahlinstallationsrahmen (30, 42) nach einem der vorangehenden Ansprüche, wobei die zylindrische Wand (2) eine innere und eine äußere Wand (20, 21) umfasst und in Kammern (60, 61, 62, 63) unterteilt ist, wobei die Kammern mit einem Druckgerät (65) zum Einstellen des Drucks in den Kammern in Abhängigkeit von der Wassertiefe der Kammer verbunden ist.
  9. Verfahren zur Installation eines Pfahls in dem Meeresboden, umfassend die Schritte:
    - Bereitstellen eines Pfahlinstallationsrahmens (30, 42) nach einem der vorangehenden Ansprüche,
    - Absenken der zylindrischen Wand (2) in einer vertikalen Position, mit einem unteren Teil (6) auf den Meeresboden (3) und einem oberen Teil (4) der sich über die Wasseroberfläche erstreckt,
    - Platzieren eines Pfahls (7) entlang der Mittellinie (8) von einer oder mehreren zylindrischen Wänden (2),
    - Versetzen der Positionierungsvorrichtungen (12,13, 14) in Richtung der Mittellinie (8) um gegen die äußere Oberfläche des Pfahls (7) zu pressen,
    - Hämmern des Pfahls nach unten durch die zylindrische Wand (2) unter Verwendung eines Hammers (10), während die oberen Positionierungsvorrichtungen (12) auf die Mittellinie zurückgezogen werden, um dem Hammer (10) zu erlauben entlang der Positionierungsvorrichtungen zu passieren.
EP11176100.3A 2011-08-01 2011-08-01 Dämpferrahmen für Offshore-Pfeilerinstallation Active EP2554752B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK11176100T DK2554752T3 (en) 2011-08-01 2011-08-01 Damper frame for offshore installation of piles
EP11176100.3A EP2554752B1 (de) 2011-08-01 2011-08-01 Dämpferrahmen für Offshore-Pfeilerinstallation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11176100.3A EP2554752B1 (de) 2011-08-01 2011-08-01 Dämpferrahmen für Offshore-Pfeilerinstallation

Publications (2)

Publication Number Publication Date
EP2554752A1 EP2554752A1 (de) 2013-02-06
EP2554752B1 true EP2554752B1 (de) 2015-04-01

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EP11176100.3A Active EP2554752B1 (de) 2011-08-01 2011-08-01 Dämpferrahmen für Offshore-Pfeilerinstallation

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DK (1) DK2554752T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3519635B1 (de) * 2016-09-30 2023-11-01 IQIP Holding B.V. Pfeilerführung mit einem sockel und einem führungselement

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201221241D0 (en) * 2012-11-26 2013-01-09 W3G Shipping Ltd Offshore structures and associated apparatus and methods
CN104005411B (zh) * 2014-03-14 2017-08-11 陈东曙 一种筒桩的施工方法及其桩筒结构
DE102014113676A1 (de) * 2014-09-22 2015-12-17 Karl-Heinz ELMER Hydroschalldämpfer und Verfahren zur Handhabung eines Hydroschalldämpfers
NL2016401B1 (en) 2016-03-09 2017-09-26 Ihc Holland Ie Bv Frame for guiding and supporting a foundation element, the frame comprising a plurality of guide mechanisms.
CN109339050B (zh) * 2018-12-03 2023-07-04 中铁上海设计院集团有限公司 一种用于超长预制桩施工的防护设备及其应用方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60159218A (ja) * 1984-01-28 1985-08-20 Ishikawajima Harima Heavy Ind Co Ltd パイルハンマ−用遮音装置
DE102004043128A1 (de) * 2004-09-03 2006-03-09 Menck Gmbh Pfahlführungsvorrichtung
NL2003656C2 (nl) * 2009-10-16 2011-04-19 Ihc Holland Ie Bv Samenstel van telescopische buisdelen.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3519635B1 (de) * 2016-09-30 2023-11-01 IQIP Holding B.V. Pfeilerführung mit einem sockel und einem führungselement

Also Published As

Publication number Publication date
DK2554752T3 (en) 2015-04-20
EP2554752A1 (de) 2013-02-06

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