NO20110888A1 - Support structure for installation on a seabed - Google Patents
Support structure for installation on a seabed Download PDFInfo
- Publication number
- NO20110888A1 NO20110888A1 NO20110888A NO20110888A NO20110888A1 NO 20110888 A1 NO20110888 A1 NO 20110888A1 NO 20110888 A NO20110888 A NO 20110888A NO 20110888 A NO20110888 A NO 20110888A NO 20110888 A1 NO20110888 A1 NO 20110888A1
- Authority
- NO
- Norway
- Prior art keywords
- foundation
- skirts
- seabed
- support structure
- installation
- Prior art date
Links
- 238000009434 installation Methods 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 238000010276 construction Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 239000003351 stiffener Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Classifications
-
- 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
- E02B17/0017—Means for protecting offshore constructions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/22—Foundations specially adapted for wind motors
-
- 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
- E02B2017/0065—Monopile structures
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Foundations (AREA)
- Wind Motors (AREA)
Abstract
En understøttelseskonstruksjon for installasjon på en havbunn, omfattende et fundament (2), og en søyle (1) festet til og strekkende seg opp fra fundamentet og i stand til å understøtte minst en utstyrsenhet, der fundamentet (2') omfatter et omkretsmessig skjørt (7) som strekker seg nedover og derved definerer minst ett kammer under fundamentet (2). Skjørtet omfatter et korrugert materiale, og er fortrinnsvis utformet av korrigerte stålplater.A support structure for installation on a seabed, comprising a foundation (2), and a column (1) attached to and extending from the foundation and capable of supporting at least one equipment unit, the foundation (2 ') comprising a circumferential skirt ( 7) extending downwardly thereby defining at least one chamber below the foundation (2). The skirt comprises a corrugated material and is preferably formed of corrected steel sheets.
Description
Oppfinnelsen angår konstruksjoner til understøttelse av havbaserte vindturbiner og liknende utstyr. Nærmere bestemt vedrører oppfinnelsen en The invention relates to constructions to support sea-based wind turbines and similar equipment. More specifically, the invention relates to a
understøttelseskonstruksjon til bruk i vindmølleparker til havs, som angitt i innledningen til det selvstendige krav 1. support structure for use in offshore wind farms, as stated in the introduction to the independent requirement 1.
Den økende etterspørselen etter utnyttelse av fornybare energikilder øker etterspørselen etter generering av vindkraft til havs, der vindforholdene er mer gunstige enn på land og miljøkonsekvensene er mindre. Det er et økende behov for konstruksjoner som kan understøtte tunge vindturbiner i en betydelig høyde over havflaten. Understøttelseskonstruksjonen består av skaft/tårn innfestet i havbunnen enten direkte ved hjelp av et fundament, eller ved at konstruksjonen flyter og forbindes med havbunnen ved hjelp av et ankersystem. Oppfinnelse angår den førstnevnte type, det vil si understøttelseskonstruksjoner som, de installert og i drift, er bunnfaste. The increasing demand for the utilization of renewable energy sources increases the demand for the generation of wind power at sea, where the wind conditions are more favorable than on land and the environmental consequences are smaller. There is a growing need for structures that can support heavy wind turbines at a considerable height above sea level. The support structure consists of shafts/towers attached to the seabed either directly by means of a foundation, or by the construction floating and connected to the seabed by means of an anchor system. The invention relates to the first-mentioned type, i.e. support structures which, when installed and in operation, are fixed to the bottom.
De typiske bunnfaste understøttelseskonstruksjoner for vindturbiner i praktisk bruk, planlagt brukt og beskrevet i offentlig tilgjengelige kilder har, generelt sett, følgende egenskaper: 1. Krevende installasjonsprosedyre der tårnet påsettes på stedet på et på forhånd installert fundament 2. Fundamentet festes til havbunnen ved borede/drillede eller rammede pæler WO 2009/154472 A2 beskriver en understøttelseskonstruksjon til bruk i havmøllesektoren, omfattende et fundament til installasjon på en bunn under en vannmasse og et tårn som er forbundet med og strekker seg opp fra fundamentet og som er i stand til å understøtte minst en utstyrsenhet. Fundamentet omfatter et bunnplate-element og en vegg som strekker seg opp fra bunnplate-elementet, og derved definerer et første hulrom som kan romme ballast og gi oppdrift under uttauing og installasjon. Fundamentet har omkretsskjørt som strekker seg ned fra bunnplate-elementet, og derved definerer minst ett kammer under fundamentet. Kammeret kan være inndelt i ytterligere kamre ved hjelp av skjørt som strekker seg ned fra bunnplate-elementet og fortrinnsvis strekker seg radialt fra et sentralt parti på bunnplate-elementet til respektive områder på omkretsskjørtet. The typical bottom-fixed support structures for wind turbines in practical use, planned to be used and described in publicly available sources have, generally speaking, the following characteristics: 1. Demanding installation procedure where the tower is attached on site to a pre-installed foundation 2. The foundation is attached to the seabed by drilled/ drilled or rammed piles WO 2009/154472 A2 describes a support structure for use in the offshore wind sector, comprising a foundation for installation on a bottom beneath a body of water and a tower connected to and extending up from the foundation and capable of supporting at least an equipment unit. The foundation comprises a bottom plate element and a wall which extends up from the bottom plate element, thereby defining a first cavity which can accommodate ballast and provide buoyancy during unmooring and installation. The foundation has circumferential skirts extending down from the base plate member, thereby defining at least one chamber beneath the foundation. The chamber can be divided into further chambers by means of skirts which extend down from the bottom plate element and preferably extend radially from a central part of the bottom plate element to respective areas on the peripheral skirt.
WO 2010/143966 A2 beskriver en fundamentbasis med en sirkulær plate som har et omkretsmessig skjørt som strekker seg nedover fra platen 5, slik at det derved dannes et hovedrom avgrenset av platen og skjørtet. I like avstander rundt platen er det anordnet et antall ytre rom med separate skjørt og som er innrettet rundt platen med en innbyrdes vinkelavstand på 120° Hovedromrnet og de ytre rommene er i virkeligheten "omvendte begre", med skjørt som kan trenge inn i overflaten når fundamentbasisen installeres. WO 2010/143966 A2 describes a foundation base with a circular plate which has a circumferential skirt extending downwards from the plate 5, so that a main space delimited by the plate and the skirt is thereby formed. At equal distances around the plate, there are arranged a number of outer chambers with separate skirts and which are arranged around the plate with a mutual angular distance of 120°. the foundation base is installed.
Både ved installasjon av fundamentet og når anlegget er i drift, vil skjørtene være utsatt for betydelige laster som krever stor materialtykkelse eller et betydelig antall stivere. Stor materialtykkelse og/eller et stort antall stivere, gir redusert penetrasjonsevne og høy fabrikasjonskostnad. Both during installation of the foundation and when the plant is in operation, the skirts will be exposed to significant loads that require a large material thickness or a significant number of stiffeners. Large material thickness and/or a large number of stiffeners result in reduced penetration and high manufacturing costs.
Det er derfor frembrakt en understøttelseskonstruksjon for installasjon på en havbunn, omfattende et fundament, og en søyle festet til og strekkende seg opp fra fundamentet og i stand til å understøtte minst en utstyrsenhet, der fundamentet omfatter et omkretsmessig skjørt som strekker seg nedover og derved definerer minst ett kammer under fundamentet,karakterisert vedat skjørtet omfatter et korrugert materiale. There is therefore provided a support structure for installation on a seabed, comprising a foundation, and a column attached to and extending upward from the foundation and capable of supporting at least one equipment unit, wherein the foundation comprises a circumferential skirt extending downwardly and thereby defining at least one chamber under the foundation, characterized in that the skirt comprises a corrugated material.
I en utførelsesform omfatter understøttelseskonstruksjon et antall ytre delfundamenter tilknyttet fundamentet, og med nedadrettede skjørt, og skjørtene omfatter et korrugert materiale. In one embodiment, the support structure comprises a number of outer sub-foundations connected to the foundation, and with downwardly directed skirts, and the skirts comprise a corrugated material.
Skjørtene er fortrinnsvis utformet av korrugerte stålplater. The skirts are preferably formed from corrugated steel plates.
De korrugerte skjørtene ifølge oppfinnelsen er bedre avstivet og følgelig mindre utsatt for å knekke ved havbunnspenetrering, enn konvensjonelle skjørt er. Man kan derfor holde en tynnere platetykkelse med korrugerte skjørt og allikevel sikre at skjørtet har den nødvendige styrke. Fabrikasjonen av skjørtene er også enklere (og dermed billigere) når det benyttes korrugerte plater. Det er ikke behov for ringstivere, o.l., som er nødvendige avstivningskomponenter ved fabrikasjon av konvensjonelle skjørt. The corrugated skirts according to the invention are better stiffened and consequently less prone to breaking during seabed penetration than conventional skirts are. You can therefore maintain a thinner plate thickness with corrugated skirts and still ensure that the skirt has the required strength. The manufacture of the skirts is also simpler (and thus cheaper) when corrugated sheets are used. There is no need for ring stiffeners, etc., which are necessary stiffening components in the manufacture of conventional skirts.
Disse og andre kjennetegn ved oppfinnelsen vil tydeliggjøres i påfølgende beskrivelse av en foretrukket utførelse, gitt som et ikke begrensende eksempel, med henvisning til de vedlagte tegninger der: Figur 1 viser en utførelsesform av fundamentet ifølge oppfinnelsen sett fra siden, og Figur 2 viser samme utførelsesform som i figur 1, sett ovenfra. Understøttelseskonstruksjonen omfatter et søyle 1, et fundament 2, en mellomliggende kjegleformet struktur 3, og er på figurene vist plassert i en vannmasse W og hviler på en havbunn B via fundamentet 2. Søylen er tilpasset for å bære et tårn og en vindturbin, eller lignende, (ikke vist) montert på toppen av tårnet. Søylen omfatter videre en arbeidsplattform 4, en fortøyningsstasjon for båt, og en leider 5 som fører fra denne opp til arbeidsplattformen. These and other characteristics of the invention will be clarified in the following description of a preferred embodiment, given as a non-limiting example, with reference to the attached drawings where: Figure 1 shows an embodiment of the foundation according to the invention seen from the side, and Figure 2 shows the same embodiment as in figure 1, seen from above. The support structure comprises a column 1, a foundation 2, an intermediate cone-shaped structure 3, and is shown in the figures placed in a body of water W and resting on a seabed B via the foundation 2. The column is adapted to support a tower and a wind turbine, or the like , (not shown) mounted on top of the tower. The column further comprises a work platform 4, a mooring station for boats, and a leader 5 which leads from this up to the work platform.
Den kjegleformede strukturen 3 omfatter fortrinnsvis en nedre del 3a av betong og en øvre del 3b av stål. The cone-shaped structure 3 preferably comprises a lower part 3a of concrete and an upper part 3b of steel.
Fundamentet 2 omfatter et nedoverrettet skjørt 7 og et antall ytre delfundamenter 6a-c som også har nedadrettede skjørt 8a-c. I den viste utførelsesformen er delfundamentene 6a-c innrettet rundt fundamentet med en innbyrdes vinkelavstand på 120° Skjørtene 7, 8a-c danner respektive kamre (ikke vist) og skjørtene kan slikk trenge ned i havbunnen B når understøttelseskonstruksjonen installeres. The foundation 2 comprises a downwardly directed skirt 7 and a number of outer partial foundations 6a-c which also have downwardly directed skirts 8a-c. In the embodiment shown, the partial foundations 6a-c are arranged around the foundation with a mutual angular distance of 120°. The skirts 7, 8a-c form respective chambers (not shown) and the skirts can thus penetrate into the seabed B when the support structure is installed.
Skjørtene, som fortrinnsvis er laget av stål, er korrugerte. Dette gir økt stivhet og bedre penetrasjonsegenskaper, og følgelig en mer stabil installasjon på havbunnen. The skirts, which are preferably made of steel, are corrugated. This provides increased rigidity and better penetration properties, and consequently a more stable installation on the seabed.
Selv om oppfinnelsen her er beskrevet og vist som en konstruksjon med et sirkulært tverrsnitt i horisontalplanet, skal oppfinnelsen ikke begrenses til slike tverrsnitt, men også omfatte for eksempel rektangulære eller oktogonale tverrsnitt. Although the invention is described and shown here as a construction with a circular cross-section in the horizontal plane, the invention shall not be limited to such cross-sections, but also include, for example, rectangular or octagonal cross-sections.
Claims (3)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20110888A NO332863B1 (en) | 2011-06-20 | 2011-06-20 | Support structure for installation on a seabed |
PCT/EP2012/061810 WO2012175547A2 (en) | 2011-06-20 | 2012-06-20 | Support structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20110888A NO332863B1 (en) | 2011-06-20 | 2011-06-20 | Support structure for installation on a seabed |
Publications (2)
Publication Number | Publication Date |
---|---|
NO20110888A1 true NO20110888A1 (en) | 2012-12-21 |
NO332863B1 NO332863B1 (en) | 2013-01-28 |
Family
ID=46397208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20110888A NO332863B1 (en) | 2011-06-20 | 2011-06-20 | Support structure for installation on a seabed |
Country Status (2)
Country | Link |
---|---|
NO (1) | NO332863B1 (en) |
WO (1) | WO2012175547A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101516192B1 (en) * | 2013-12-20 | 2015-05-04 | 삼성중공업 주식회사 | A supporting apparatus for a bearing housing of aerogenerator type |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4000624A (en) * | 1975-06-10 | 1977-01-04 | Lin Offshore Engineering, Inc. | Multi-component offshore platform |
US4655642A (en) * | 1983-12-20 | 1987-04-07 | Brian Watt Associates, Inc. | Arctic structure of composite wall construction |
NO850517L (en) * | 1985-02-12 | 1986-08-13 | Saga Petroleum | CONSTRUCTION GEOMETRY AND SHAPE FOR OFFSHORE CONCRETE PLATFORM. |
NO328838B1 (en) | 2008-06-20 | 2010-05-25 | Seatower As | Device and method of wind generator |
NO20092238L (en) | 2009-06-10 | 2010-12-13 | Seatower As | Device for installation of subsea structure |
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2011
- 2011-06-20 NO NO20110888A patent/NO332863B1/en unknown
-
2012
- 2012-06-20 WO PCT/EP2012/061810 patent/WO2012175547A2/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2012175547A3 (en) | 2013-07-04 |
NO332863B1 (en) | 2013-01-28 |
WO2012175547A2 (en) | 2012-12-27 |
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