EP3012183A1 - Ancre a ventouse - Google Patents

Ancre a ventouse Download PDF

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Publication number
EP3012183A1
EP3012183A1 EP15001828.1A EP15001828A EP3012183A1 EP 3012183 A1 EP3012183 A1 EP 3012183A1 EP 15001828 A EP15001828 A EP 15001828A EP 3012183 A1 EP3012183 A1 EP 3012183A1
Authority
EP
European Patent Office
Prior art keywords
hollow body
cylindrical hollow
lid
suction
anchor
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.)
Withdrawn
Application number
EP15001828.1A
Other languages
German (de)
English (en)
Inventor
Manfred Ehrke
Andreas Wulff
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.)
Hab Hallen- und Anlagenbau GmbH
Original Assignee
Hab Hallen- und Anlagenbau GmbH
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 Hab Hallen- und Anlagenbau GmbH filed Critical Hab Hallen- und Anlagenbau GmbH
Publication of EP3012183A1 publication Critical patent/EP3012183A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/24—Anchors
    • B63B21/26—Anchors securing to bed
    • B63B21/27—Anchors securing to bed by suction
    • 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
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/0073—Details of sea bottom engaging footing
    • E02B2017/0078—Suction piles, suction cans

Definitions

  • the invention relates to a suction anchor for the offshore area as a foundation for floating equipment, such as buoys or wind turbines.
  • the monopile construction consists of a cylindrical hollow pole.
  • the monopile is used in many European offshore wind farms near the coast and is suitable for foundations in water depths up to about 20 meters.
  • Monopile designs are not suitable for using more powerful OWEA (6 MW) in deeper water. Their use is economical up to water depths of about 15 meters. Monopiles can be installed easily and quickly. However, heavy piling equipment is needed for the construction.
  • the jacket is a truss structure made of steel, which is similar to the construction of conventional electricity pylons. At its four feet, the jacket is anchored with piles in the seabed.
  • the jacket construction has already proven itself in the oil industry in deeper water depths. Thanks to the truss structure, 40 to 50% steel can be saved compared to the monopile. A disadvantage of this foundation is the low collision safety.
  • the tripod is a tripod construction made of steel pipes that support the main pile under water.
  • the tripod is anchored with small piles by ramming in the seabed.
  • the tripile consists of three steel pillars that are anchored under water. Over water, a tripod construction is placed on these steel pillars.
  • Gravity foundations consist of a large block of concrete supporting the steel construction of the OWEA. Gravity foundations are primarily used in bridge construction and for European offshore wind farms in water depths below 10 meters.
  • the floating foundation is a construction in which the floating offshore installations are attached to a foundation on the seabed with a rope.
  • the bucket foundation is similarly flushed out of the negative pressure by an inverted bucket and suctions into the sandy ground.
  • a floating foundation with improved bracing is described, which is anchored with anchors arranged vertically below junctions of a floating structure. From each anchor, guy ropes extend vertically upwards to corresponding junctions and other guy ropes obliquely upward to beyond junction points.
  • the anchors are designed as gravity anchor. They consist of an optionally Stahlumgriffenen or steel reinforced concrete body. In a preferred embodiment, the concrete body is made of sea gravel with seawater as mixing water on site.
  • the GB 2378679 discloses a floating structure for a wind turbine.
  • the floating structure comprises several floating bodies that have been submerged during operation. They are connected to each other via a support frame on which the tower of the wind turbine is centrally arranged.
  • suction anchors are provided with which the floating structure is connected by tension cables. These extend substantially vertically from the floats to the suction anchors. The suction anchor are not explained here in detail.
  • the DE 100 56 857 A1 describes a float, which is attached via anchoring cables to pile pile anchors or to pile pile anchors with ballast bodies.
  • the plant of DE 10 2010 026 117 A1 relates to an offshore installation, in particular a wind turbine and a method for anchoring such an offshore installation on the seabed, the uppermost layer of which is a layer of sand.
  • the offshore installation is anchored to the seabed with at least three anchoring elements.
  • the anchoring elements are designed in the form of a hollow body, which encloses an interior and is open towards a lower side, wherein at least one outlet opening is provided in the upper side of the hollow body opposite the underside. Due to the dead weight of the offshore installation, the offshore installation or at least one of the anchoring elements is pressed into the sand layer.
  • the offshore plant has a suction device for sucking the water from the interior of the anchoring elements.
  • suction lines with the outlet openings on the top be connected to the hollow body.
  • the water can be sucked from the hollow body of the anchoring element or even from each of the individual chambers, provided that the anchoring element has ribs.
  • the pumped out of the interior of the hollow body water can be performed, for example, arranged in a base pipes up and pumped into the sea
  • the DE 28 49 430 A1 discloses a suction anchor with a top plate and a downwardly projecting jacket.
  • a spike or peg which is retractable into the water bottom of the pull-out resistance of the armature is increased.
  • the suction anchor is lowered to the bottom of the water and a pump is activated, which then creates a vacuum zone within the jacket.
  • This negative pressure together with the hydrostatic pressure acting on the top plate, results in a differential pressure above the top plate, which then presses the jacket into the bottom of the water until the top plate comes to rest on the bottom of the water.
  • the pegs of the anchor are driven by means of their associated drive devices in the bottom of the water to increase the pull-out resistance of the armature.
  • top plate On the top plate by means of a hydraulically actuated, cooperating with locking tabs locking bolts provided with a paddle drum and releasably aligned by means of dowel pins.
  • a fastening eye for an anchor chain or an anchor line is arranged, while at the drum auxiliary eyelets are provided for their salvage after the digging of the anchor.
  • the anchor chain or rope may conveniently be wound up prior to burying the anchor within the drum, thereby increasing the overall mass of the anchor and assisting its burial.
  • the foundations used hitherto cause a high level of noise pollution with considerable noise emissions during pile driving to construct the foundations with considerable effects on the life of marine mammals and other creatures in the sea.
  • the object of the invention is to develop a foundation for offshore installations, which requires no pile driving and can be pulled out of the ground again.
  • the suction anchor consists of a cylindrical hollow body (1) and on the cylindrical hollow body (1) decoupled arranged supply unit (2).
  • On the underside (3) of the cylindrical hollow body (1) a scavenging air ring (12) is arranged externally around the cylindrical hollow body (1).
  • the supply unit (2) consists of a frame (15) with a suction pump (10), which is connected via tear-off couplings (11) with the closable valves (7) torn off.
  • the cylindrical hollow body (1) can consist of one or more chambers (13) in a further embodiment of the invention.
  • the suction anchor consists of a cylindrical hollow body (1) and on this cylindrical hollow body (1) decoupled arranged supply unit (2).
  • the cylindrical hollow body (1) can be divided into individual chamber (13).
  • the cylindrical hollow body (1) is designed to be open at the underside (3) facing the seabed, while it is closed at the top (4) by a lid (5).
  • a scavenging air ring (12) is externally welded to the cylindrical hollow body (1).
  • the lid (5) has one or more openings (6) on which one or more closable ball valves (7) are arranged.
  • On the cover (5) one or more compressed air connections (8) and an anchor eye (9) are further attached, wherein the compressed air connections (8) with the scavenging air ring (12) via air lines (15) are connected.
  • the supply unit (2) consists of a frame (14) which is decoupled with the cylindrical hollow body (1) is connected, and a suction pump (10) via one or more Abr regardingkupplept (11) in the form of pinch valves with the closable valves (14). 7) is torn off.
  • the suction anchor in the seabed of the cylindrical hollow body (1) is attached to the coupled thereto supply unit (2) on the seabed.
  • the suction pump (10) we sucked the water and if given also silt and sand from the cylindrical hollow body (1) and it arises in the cylindrical hollow body (1) a vacuum. Due to the weight of the suction anchor and the hydrostatic pressure, it sinks into the seabed and forms a foundation for offshore installations.
  • the scavenging air ring (12) the seabed can be loosened and the sinking of the cylindrical hollow body (1) can be facilitated.
  • the supply unit (2) After anchoring the cylindrical hollow body (1) in the seabed, the supply unit (2) is decoupled from the cylindrical hollow body (1) and lifted from it.
  • the suction pump (10) is separated by pinch valves as Abr admirkupplept (11) of the ball valves (7) and the ball valves (7) close automatically.
  • a lifting device For lifting the cylindrical hollow body (1) as a foundation for an offshore installation, a lifting device is connected by means of a chain to the anchor eye (9) and lifted from the seabed to the surface. Through the compressed air connections (8) compressed air via the air lines (15) is pumped into the scavenging air ring (12) and loosened in this way the cylindrical hollow body (1) in the seabed.
  • the scavenging air ring (12) also has the task to surround the cylindrical hollow body (1) with a bubble curtain when working on Sauganker and thus to achieve a soundproofing effect.
  • the suction anchor as a foundation for offshore installations is not only an anchorage for the seabed, but it can also be used for all underwater foundations, such as in rivers or lakes.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Foundations (AREA)
EP15001828.1A 2014-10-24 2015-06-19 Ancre a ventouse Withdrawn EP3012183A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014015801.2A DE102014015801A1 (de) 2014-10-24 2014-10-24 Sauganker

Publications (1)

Publication Number Publication Date
EP3012183A1 true EP3012183A1 (fr) 2016-04-27

Family

ID=53502391

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15001828.1A Withdrawn EP3012183A1 (fr) 2014-10-24 2015-06-19 Ancre a ventouse

Country Status (2)

Country Link
EP (1) EP3012183A1 (fr)
DE (1) DE102014015801A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110195442A (zh) * 2019-06-10 2019-09-03 中交上海港湾工程设计研究院有限公司 一种用于负压桶式结构的水下自动化施工系统
CN113235641A (zh) * 2021-05-27 2021-08-10 中交第三航务工程局有限公司 一种海上风电桶式基础吸力泵组的对接系统
CN114852256A (zh) * 2022-06-02 2022-08-05 交通运输部广州打捞局 一种吸力锚及吸力锚的使用方法
CN118877125A (zh) * 2024-09-29 2024-11-01 珠海市海洋装备研究院有限公司 吸力桩锚系统及海洋养殖平台
NO20230860A1 (en) * 2023-08-09 2025-02-10 Compocean As A suction anchor installation system and method
CN120868847A (zh) * 2025-09-25 2025-10-31 吉林大学 一种负压抽吸与强力嵌入锚固系统

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2849430A1 (de) 1977-11-14 1979-05-17 Secretary Industry Brit Sauganker
EP0011894A1 (fr) * 1978-12-04 1980-06-11 Shell Internationale Researchmaatschappij B.V. Méthode et appareillage pour l'installation d'un élément tubulaire au fond de l'eau
US4432671A (en) * 1981-04-02 1984-02-21 Shell Oil Company Suction anchor and method of installing a suction anchor
WO1995020075A1 (fr) * 1994-01-21 1995-07-27 Johannes Rudolf Hogervorst Procede et appareil de mise en place d'un pieu creux d'aspiration au fond d'une masse d'eau
DE10056857A1 (de) 1999-11-18 2001-07-26 Jan They Verankerungsstabilisierte Trägerboje
GB2378679A (en) 2001-08-16 2003-02-19 Technologies Ltd Ocean Floating offshore wind turbine
US20030167659A1 (en) * 2002-03-08 2003-09-11 Raines Richard D. Method for installing a pile anchor
DE102010026117A1 (de) 2010-07-05 2011-03-24 Kelemen, Peter, Dipl.-Ing. Offshore-Anlage, insbesonere Windkraftanlage und Verfahren zum Verankern einer solchen
DE102009044278A1 (de) 2009-10-16 2011-04-21 JÄHNIG, Jens Schwimmfundament mit verbesserter Abspannung
DE102010022650A1 (de) * 2010-06-04 2011-12-08 Uwe ROHDE Vorrichtung zum Abführen eines aus dem Meeresgrund hervorquellenden Materials und Verfahren

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2849430A1 (de) 1977-11-14 1979-05-17 Secretary Industry Brit Sauganker
EP0011894A1 (fr) * 1978-12-04 1980-06-11 Shell Internationale Researchmaatschappij B.V. Méthode et appareillage pour l'installation d'un élément tubulaire au fond de l'eau
US4432671A (en) * 1981-04-02 1984-02-21 Shell Oil Company Suction anchor and method of installing a suction anchor
WO1995020075A1 (fr) * 1994-01-21 1995-07-27 Johannes Rudolf Hogervorst Procede et appareil de mise en place d'un pieu creux d'aspiration au fond d'une masse d'eau
DE10056857A1 (de) 1999-11-18 2001-07-26 Jan They Verankerungsstabilisierte Trägerboje
GB2378679A (en) 2001-08-16 2003-02-19 Technologies Ltd Ocean Floating offshore wind turbine
US20030167659A1 (en) * 2002-03-08 2003-09-11 Raines Richard D. Method for installing a pile anchor
DE102009044278A1 (de) 2009-10-16 2011-04-21 JÄHNIG, Jens Schwimmfundament mit verbesserter Abspannung
DE102010022650A1 (de) * 2010-06-04 2011-12-08 Uwe ROHDE Vorrichtung zum Abführen eines aus dem Meeresgrund hervorquellenden Materials und Verfahren
DE102010026117A1 (de) 2010-07-05 2011-03-24 Kelemen, Peter, Dipl.-Ing. Offshore-Anlage, insbesonere Windkraftanlage und Verfahren zum Verankern einer solchen

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110195442A (zh) * 2019-06-10 2019-09-03 中交上海港湾工程设计研究院有限公司 一种用于负压桶式结构的水下自动化施工系统
CN110195442B (zh) * 2019-06-10 2024-03-12 中交上海港湾工程设计研究院有限公司 一种用于负压桶式结构的水下自动化施工系统
CN113235641A (zh) * 2021-05-27 2021-08-10 中交第三航务工程局有限公司 一种海上风电桶式基础吸力泵组的对接系统
CN114852256A (zh) * 2022-06-02 2022-08-05 交通运输部广州打捞局 一种吸力锚及吸力锚的使用方法
CN114852256B (zh) * 2022-06-02 2023-07-04 交通运输部广州打捞局 一种吸力锚及吸力锚的使用方法
NO20230860A1 (en) * 2023-08-09 2025-02-10 Compocean As A suction anchor installation system and method
NO349028B1 (en) * 2023-08-09 2025-09-01 Brimer Horizon AS A suction anchor installation system and method
CN118877125A (zh) * 2024-09-29 2024-11-01 珠海市海洋装备研究院有限公司 吸力桩锚系统及海洋养殖平台
CN120868847A (zh) * 2025-09-25 2025-10-31 吉林大学 一种负压抽吸与强力嵌入锚固系统

Also Published As

Publication number Publication date
DE102014015801A1 (de) 2016-04-28

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