EP2672016A1 - Fugendichtung und Verfahren zum Verfugen eines ringförmigen Raumes zwischen zwei Fundamentelementen eines Meeresbauwerks - Google Patents

Fugendichtung und Verfahren zum Verfugen eines ringförmigen Raumes zwischen zwei Fundamentelementen eines Meeresbauwerks Download PDF

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Publication number
EP2672016A1
EP2672016A1 EP12004238.7A EP12004238A EP2672016A1 EP 2672016 A1 EP2672016 A1 EP 2672016A1 EP 12004238 A EP12004238 A EP 12004238A EP 2672016 A1 EP2672016 A1 EP 2672016A1
Authority
EP
European Patent Office
Prior art keywords
grout
sealing member
foundation
seal
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.)
Granted
Application number
EP12004238.7A
Other languages
English (en)
French (fr)
Other versions
EP2672016B1 (de
Inventor
David Neil Russel Glover
Julian Garnsey
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.)
Innogy SE
Original Assignee
RWE Innogy 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 RWE Innogy GmbH filed Critical RWE Innogy GmbH
Priority to DK12004238.7T priority Critical patent/DK2672016T3/en
Priority to EP12004238.7A priority patent/EP2672016B1/de
Priority to PL12004238T priority patent/PL2672016T3/pl
Publication of EP2672016A1 publication Critical patent/EP2672016A1/de
Application granted granted Critical
Publication of EP2672016B1 publication Critical patent/EP2672016B1/de
Active 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
    • 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
    • E02D27/50—Anchored foundations

Definitions

  • the invention refers to a grout for sealing the annular space between two concentrically placed foundation members of an offshore structure including at least one sealing member extending within the annular space between the foundation members in order to seal a grout against the ingress of water and to secure said grout against egress into water.
  • the invention furthermore refers to a method to grout an annular space between two foundation members of an offshore structure.
  • a grout seal and a method for grouting are for instance disclosed in GB 2 433 540 A .
  • a secondary contingency brush seal to support the grout if the primary seal fails.
  • This method is particularly intended for grouting the annuli between an offshore platform leg or pile sleeve and a foundation pile driven there through.
  • a method for grouting annuli in offshore platforms is also disclosed in European patent application 0 204 041 .
  • This reference moreover discloses a grouting arrangement for an offshore platform having an annular support member, having in turn a pile driven there through forming an annular space there between.
  • This arrangement comprising a seal assembly including a lower pile seal assembly attached to the annular support member and an upper pile seal assembly attached to said annular support member.
  • the grout system for grouting said annular space includes a control valve for controlling the flow of grouting material into said anular space, a surface grout line leading to the control valve, and a first line leading from the control valve to said annular space.
  • the annular space is located between the lower and upper pile seal assembly, a lower pile seal assembly provides a small annular space in which a material can be pumped to seal the space and which has great enough load-bearing strength to support in conjunction with a pile seal member a grout column in an annular space above the aforementioned space.
  • Tubular grouted connections as aforementioned are commonly used in offshore constructions, including offshore wind turbine generator support structures.
  • the connection may be between a transition piece and pile on a monopile-type foundation or between a pile and pile sleeve of a jacket or a tripod-type foundation.
  • rubber wiper seals are normally used as a temporarily seal at the bottom of tubular grouted connections to contain the grout prior to its curing. After curing, the grout is normally self-supporting.
  • Common grouted connections normally rely on a pressure being exerted on the top of the seal by the uncured grout to maintain a seal between for instance the pile sleeve and the pile against ingress of salt water as long as the grout is not yet cured.
  • the known grouted connections suffer also from the disadvantage that a loss of grout during establishment of the grouted connection might occur.
  • the invention provides a grout seal for sealing the annular space between two concentrically placed foundation members of an offshore structure including at least one sealing member extending within the annular space between the foundation members in order to seal a grout against the ingress of water and to secure said grout against egress into water.
  • This grout seal is characterized by at least one elastically compressible member extending within said annular space and permanently providing an active pressure acting radially against horizontal or radial displacement of the foundation members relative to each other.
  • Said elastically compressible member will expand and contract with the horizontal displacement of the foundation members relative to each other. This results in a reduction of stresses in the grout at the end of the connection.
  • said elastically compressible member is in the form of a packer.
  • Packers as such are well-known in the art for well completions. Such packers are devices used to isolate the annulus or ancre or secure the bottom of a production tubing string of oil field or gas field.
  • Such a packer may for instance provide a primary sealing for said grout.
  • Such packer alternatively may provide a secondary sealing for said grout and may for instance be provided below or above an ordinary wiper seal.
  • said packer may comprise an elastically deformable member which is set hydraulically or by a pressurized gas, the grout may or may not rest on said packer.
  • An additional seal in form of a wiper seal may be included above said packer.
  • Said sealing member will be radially compressed by the mass of the "wet" grout column exerting pressure on the sealing member. Once the grout is fully cured, due to the elastic deformation of the secondary sealing member, said sealing member will expand and contract with the horizontal displacement of the outer wall relative to the inner wall. This results in a reduction of stresses in the grout at the end of the connection. Moreover, a sealing engagement of the sealing member with the surrounding material is always provided due to the resilience of the material and due to the compression force stored in the material of the sealing member.
  • the secondary sealing member provides an active pressure acting radially against horizontal or radial displacement of the foundation member relative to each other.
  • the secondary sealing member is directly attached to the primary sealing member.
  • the secondary sealing member for instance can be glued or sprayed onto the rubber wiper seal providing the primary seal and/or onto the steel walls of the foundation members.
  • the secondary sealing member can be provided in the form of a foamed material, which for instance has been expanded by a chemical reaction.
  • the secondary sealing member may for instance be provided as a foamed polyurethane sealing.
  • the primary sealing member may be in the form of a diaphragm-type wiper seal, the lower, downwardly facing surface of which peripherally rests against the outer wall of the inner foundation member.
  • the secondary sealing member may be at least partially attached to the upper surface of the primary sealing member.
  • the secondary sealing member can be provided as an elastically deformable and compressible layer directly attached to the surface of the primary sealing member. Attached in the sense of the present invention means “glued”, “sprayed”, or “welded” onto the primary sealing member.
  • a secondary sealing member may be at least partially attached to the inner wall of the outer foundation member or the outer wall of the inner foundation member.
  • the secondary sealing member is a compressible membrane which has preferably being glued, welded or sprayed onto the primary seal and/or the inner wall of the outer foundation member and/or the outer wall of the inner foundation member.
  • the secondary sealing member may comprise at least one elastomeric pad which has been placed so between the inner wall of the outer foundation member and the outer wall of the inner foundation member that it may be at least partially radially compressed by the pressure exerted by the grout mass.
  • a grout seal for sealing the annular space between two concentrically placed foundation members of an offshore structure including at least one resilient sealing member attached to the inner wall of an outer foundation member, said sealing member extending peripherally within the annular space between the foundation members in order to seal a grout against the ingress of water and to secure said grout against egress into water, this grout seal being characterized in that the sealing member at least where exposed to said grout has elastically compressible/deformable properties to such an extent that it may be compressed by the grout and provides an active pressure after the grout has been cured.
  • the sealing member may be positioned and dimensioned such that it provides an active pressure acting radially against horizontal or radial displacement of the foundation members relative to each other.
  • the object of the invention is also achieved by a method to grout an annular space between two foundation members of an offshore structure, the method including providing at least one elastically deformable member extending in the annular space such that the elastically member provides an active pressure acting radially against horizontal and/or radial displacements of the foundation members relative to each other.
  • the method according to the invention preferably includes providing at least one elastically compressible sealing member, exposing said sealing member to a grout to be filled into said annular space such that it is at least partially compressed by the mass of said grout while not yet cured to such an extent that the sealing member provides an active pressure acting radially against horizontal or radial displacement of the foundation members relative to each other.
  • One preferred variant of the method according to the invention is characterized by providing at least a primary and a secondary sealing member, whereas the secondary sealing member is elastically compressible.
  • the secondary sealing is placed above the primary sealing member so that the secondary sealing member at least carries a part of the weight force exerted by the column of the wet grout resting on the sealing member.
  • Figure 1 shows a part of an offshore platform, namely a jacket foundation 1 the legs 2 of which are provided with pile sleeves 3, which are penetrated by piles 4 fixed to the sea floor 5.
  • the piles 4 have been rammed into the sea floor prior to attachment of the jacket foundation 1.
  • the grout seal according to the present invention is suitable and applicable for any type of offshore foundations, namely also for monopile foundations.
  • the specific embodiment refers, however, to a jacket foundation.
  • the piles of the jacket foundation according to the specific embodiment have been driven through a template in order to determine the exact position of the piles 4.
  • This method is commonly known is prepiling as opposed to so-called postpiling, where the jacket foundation 1 is first placed on the sea floor 5 and the piles 4 are rammed through the pile sleeves 3 afterwards.
  • the jacket foundation 1 has been placed on the sea floor 5 after ramming of the piles 4 in predetermined positions.
  • the jacket foundation 1 has been placed onto the piles 4 such that the piles 4 extend through the pile sleeves 3. This connection has been grouted afterwards as this will be described in more detail in the following.
  • the pile sleeve 3 defines an outer foundation member
  • the pile 4 defines an inner foundation member
  • the inner foundation member is defined by the pile 4, the pile sleeve 3 and the pile 4 being concentrically placed with respect to one another defining an annular space 8 there between.
  • the wiper seal 7 at its inwardly directed rim 9 rests against an outer wall 10 of the pile 4.
  • grouted connection/grout seal must not necessarily be a connection between pile sleeves and piles, but rather may be any connection between foundation members more or less concentrically arranged within each other and defining an annular space there between.
  • outer foundation member and the inner foundation member have circular cross sections, although in the instant application for the sake of simplification the term "concentrically" is being used.
  • Figure 2 shows the connection still to be grouted where the piles 4 already penetrate the pile sleeves 3.
  • the diaphragm-type wiper seal 7 which for instance may be made from a resilient rubber-type material has been pierced and/or deflected by the pile 4 while the pile sleeve 3 has been put on the pile 4.
  • a secondary sealing member 11 attached to the upwardly facing surface of the wiper seal 7 is a secondary sealing member 11 which is for instance made from a compressible foamed material.
  • the secondary sealing member 11 fully covers the upper surface of the wiper seal as well as part of the inner wall 6 of pile sleeve 3 so that the secondary sealing member together with the wiper seal form a kind of pocket 12 for receiving a grout 13.
  • the grout may be in form an alkali silicate material which cures upon contact with a curing agent.
  • the grout 13 may be injected into the annular space 8 via a grouting line, which for the sake of simplification is not shown in the drawings. The grouting line will lead into the annular space 8 somewhere above the wiper seal 7.
  • FIG 3 shows the grouted connection according to the invention with the grout 13 filled in.
  • the column of the grout mass 13 resting on the wiper seal will consequently compress the secondary sealing member as this is suggested in Figure 3 .
  • the mass of the grout 13 will not fully rest on the wiper seal 7 anymore.
  • the grout 13 will shrink to a certain extent upon hardening.
  • the sealing member Due to the compressibility of the secondary sealing member 11, the sealing member provides an active pressure and seal during horizontal displacements of the pile sleeves 6 relative to the piles 4, as this is suggested by the arrows in Figure 3 .
  • This pressure is constantly urging the wiper seal into engagement of the outer wall 10 of the pile 4.
  • FIG. 4 An alternative embodiment of the present invention is shown in Figure 4 which shows the ungrouted connection. Same parts are provided with the same reference numerals.
  • the secondary sealing member is only in the form of a compressible sealing pad 14 attached to the upper surface of the wiper seal 7 and covering only the peripheral rim of the wiper seal 7 in the area where the wiper seal 7 is deflected by the pile 4 and extends vertically.
  • the secondary sealing member 11 may for instance only be provided on the inner wall 6 of the pile sleeve 3 in that area where the wiper seal 7 and the pile sleeve 3 form a pocket 12 for receiving the grout 13.
  • a primary sealing member is provided by a grout packer 15 which is designed as an elastically deformable hollow torus member attached to the inner wall 6 of the pile sleeves 3 which in this embodiment form the outer foundation member.
  • the grout packer 15 is filled with a liquid or a gas or a curable elastically deformable material and maintains an active pressure and seal during horizontal displacement of the inner wall 6 of the pile sleeves 3 relative to the outer wall 10 of the pile 4.
  • the grout 13 rests on the grout packer 15, however, there may be provided an additional wiper seal above or below the grout packer 15.
  • the grout packer 15 is attached to the inner wall 6 of the pile sleeve 3, however, the grout packer 15 may also be attached to the outer wall 10 of the pile 4.

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  • 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)
  • Foundations (AREA)
  • Revetment (AREA)
EP12004238.7A 2012-06-04 2012-06-04 Fugendichtung und Verfahren zum Verfugen eines ringförmigen Raumes zwischen zwei Fundamentelementen eines Meeresbauwerks Active EP2672016B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DK12004238.7T DK2672016T3 (en) 2012-06-04 2012-06-04 Grout seal and method for grouting an annular space between two foundation elements in an offshore structure
EP12004238.7A EP2672016B1 (de) 2012-06-04 2012-06-04 Fugendichtung und Verfahren zum Verfugen eines ringförmigen Raumes zwischen zwei Fundamentelementen eines Meeresbauwerks
PL12004238T PL2672016T3 (pl) 2012-06-04 2012-06-04 Cementowane uszczelnienie i sposób cementowania pierścieniowej przestrzeni między dwoma członami fundamentowymi konstrukcji morskiej

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12004238.7A EP2672016B1 (de) 2012-06-04 2012-06-04 Fugendichtung und Verfahren zum Verfugen eines ringförmigen Raumes zwischen zwei Fundamentelementen eines Meeresbauwerks

Publications (2)

Publication Number Publication Date
EP2672016A1 true EP2672016A1 (de) 2013-12-11
EP2672016B1 EP2672016B1 (de) 2018-01-03

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EP (1) EP2672016B1 (de)
DK (1) DK2672016T3 (de)
PL (1) PL2672016T3 (de)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103967036A (zh) * 2014-05-07 2014-08-06 中国水电顾问集团华东勘测设计研究院有限公司 用于海上风电的桩与套筒灌浆连接结构及其施工方法
CN105133661A (zh) * 2015-08-11 2015-12-09 深圳市腾海油田工程技术有限公司 一种基于海底桩腿的膨胀式封隔器
CN106193096A (zh) * 2016-08-31 2016-12-07 朱荣华 一种分体搭接式灌浆密封圈
CN108708686A (zh) * 2018-08-21 2018-10-26 天津熙盛科技发展有限公司 一种被动式具有缩小间隙功能的水下封隔器
CN108729873A (zh) * 2018-07-16 2018-11-02 山东南海气囊工程有限公司 串联压缩式封隔器
WO2018227357A1 (zh) * 2017-06-13 2018-12-20 衡橡科技股份有限公司 一种先桩式封隔器
DE102017123935A1 (de) 2017-10-13 2019-04-18 Rosen Swiss Ag Dichtungsanordnung für eine Verbindung zweier Verbindungselemente eines Offshore-Bauwerks sowie Verfahren zur Herstellung derselben
CN111560936A (zh) * 2020-07-13 2020-08-21 东营金联建筑工程有限公司 一种伞状自启式海洋工程桩管封隔器
CN111719554A (zh) * 2020-03-21 2020-09-29 东莞市大乘建筑工程技术有限公司 一种静压锚杆桩基础补强结构及其施工工艺
RU2736227C2 (ru) * 2016-04-15 2020-11-12 Пур Винд Апс Прокладка для ветряной турбины, применение указанной прокладки и способы её монтажа и изготовления (варианты)
WO2021082405A1 (zh) * 2019-10-30 2021-05-06 中铁大桥勘测设计院集团有限公司 封隔器及基桩结构
CN113529818A (zh) * 2021-07-13 2021-10-22 深圳市工勘岩土集团有限公司 预应力管桩免焊抗拔静载试验装置
CN113529817A (zh) * 2021-07-13 2021-10-22 深圳市工勘岩土集团有限公司 预应力管桩免焊抗拔静载试验方法
CN113585363A (zh) * 2021-07-13 2021-11-02 深圳市工勘岩土集团有限公司 反力钢盘与预应力管桩的填芯钢筋的连接固定结构
WO2021249868A1 (en) * 2020-06-11 2021-12-16 Trelleborg Ridderkerk B.V. Method for building a sealed structure comprising two tubular members, a sealed structure, an offshore wind turbine and a sealing system
RU2779937C2 (ru) * 2017-10-13 2022-09-15 Розен Свисс Аг Уплотнительное устройство

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4552486A (en) * 1984-03-21 1985-11-12 Halliburton Company Grouting method - chemical method
GB2433540A (en) 2005-12-22 2007-06-27 Martin Hardy Brush seal for grouting annuli

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4552486A (en) * 1984-03-21 1985-11-12 Halliburton Company Grouting method - chemical method
EP0204041A1 (de) 1984-03-21 1986-12-10 Halliburton Company Zementierung von Ringen in Offshore-Plattformen
GB2433540A (en) 2005-12-22 2007-06-27 Martin Hardy Brush seal for grouting annuli

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103967036A (zh) * 2014-05-07 2014-08-06 中国水电顾问集团华东勘测设计研究院有限公司 用于海上风电的桩与套筒灌浆连接结构及其施工方法
CN105133661B (zh) * 2015-08-11 2019-07-05 深圳市腾海油田工程技术有限公司 一种基于海底桩腿的膨胀式封隔器
CN105133661A (zh) * 2015-08-11 2015-12-09 深圳市腾海油田工程技术有限公司 一种基于海底桩腿的膨胀式封隔器
US11319930B2 (en) 2016-04-15 2022-05-03 Pur Wind Aps Gasket for wind turbine
US11905922B2 (en) 2016-04-15 2024-02-20 Pur Wind Aps Gasket for wind turbine
RU2736227C2 (ru) * 2016-04-15 2020-11-12 Пур Винд Апс Прокладка для ветряной турбины, применение указанной прокладки и способы её монтажа и изготовления (варианты)
CN106193096A (zh) * 2016-08-31 2016-12-07 朱荣华 一种分体搭接式灌浆密封圈
WO2018227357A1 (zh) * 2017-06-13 2018-12-20 衡橡科技股份有限公司 一种先桩式封隔器
WO2019073060A3 (de) * 2017-10-13 2019-06-06 Rosen Swiss Ag Dichtung
WO2019073060A2 (de) 2017-10-13 2019-04-18 Rosen Swiss Ag Dichtungsanordnung für eine verbindung zweier verbindungselemente eines offshore-bauwerks sowie verfahren zur herstellung derselben
KR20200079262A (ko) * 2017-10-13 2020-07-02 로젠 스위스 아게 해상 구조물의 2개의 조인트 요소의 조인트용 밀봉 장치 및 이를 제조하기 위한 방법
CN111479966A (zh) * 2017-10-13 2020-07-31 罗森瑞士股份公司 密封装置
JP2020537070A (ja) * 2017-10-13 2020-12-17 ローゼン スイス アクチエンゲゼルシャフトＲｏｓｅｎ Ｓｗｉｓｓ ＡＧ シール
DE102017123935A1 (de) 2017-10-13 2019-04-18 Rosen Swiss Ag Dichtungsanordnung für eine Verbindung zweier Verbindungselemente eines Offshore-Bauwerks sowie Verfahren zur Herstellung derselben
RU2779937C2 (ru) * 2017-10-13 2022-09-15 Розен Свисс Аг Уплотнительное устройство
CN108729873A (zh) * 2018-07-16 2018-11-02 山东南海气囊工程有限公司 串联压缩式封隔器
CN108729873B (zh) * 2018-07-16 2024-04-30 山东南海气囊工程有限公司 串联压缩式封隔器
CN108708686A (zh) * 2018-08-21 2018-10-26 天津熙盛科技发展有限公司 一种被动式具有缩小间隙功能的水下封隔器
WO2021082405A1 (zh) * 2019-10-30 2021-05-06 中铁大桥勘测设计院集团有限公司 封隔器及基桩结构
CN111719554B (zh) * 2020-03-21 2021-09-21 东莞市大乘建筑工程技术有限公司 一种静压锚杆桩基础补强结构及其施工工艺
CN111719554A (zh) * 2020-03-21 2020-09-29 东莞市大乘建筑工程技术有限公司 一种静压锚杆桩基础补强结构及其施工工艺
WO2021249868A1 (en) * 2020-06-11 2021-12-16 Trelleborg Ridderkerk B.V. Method for building a sealed structure comprising two tubular members, a sealed structure, an offshore wind turbine and a sealing system
CN111560936B (zh) * 2020-07-13 2020-09-25 东营金联建筑工程有限公司 一种伞状自启式海洋工程桩管封隔器
CN111560936A (zh) * 2020-07-13 2020-08-21 东营金联建筑工程有限公司 一种伞状自启式海洋工程桩管封隔器
CN113529817A (zh) * 2021-07-13 2021-10-22 深圳市工勘岩土集团有限公司 预应力管桩免焊抗拔静载试验方法
CN113585363A (zh) * 2021-07-13 2021-11-02 深圳市工勘岩土集团有限公司 反力钢盘与预应力管桩的填芯钢筋的连接固定结构
CN113529818A (zh) * 2021-07-13 2021-10-22 深圳市工勘岩土集团有限公司 预应力管桩免焊抗拔静载试验装置

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Publication number Publication date
PL2672016T3 (pl) 2018-06-29
EP2672016B1 (de) 2018-01-03
DK2672016T3 (en) 2018-04-16

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