EP2625343A1 - Foundation for a wind turbine - Google Patents

Foundation for a wind turbine

Info

Publication number
EP2625343A1
EP2625343A1 EP11778790.3A EP11778790A EP2625343A1 EP 2625343 A1 EP2625343 A1 EP 2625343A1 EP 11778790 A EP11778790 A EP 11778790A EP 2625343 A1 EP2625343 A1 EP 2625343A1
Authority
EP
European Patent Office
Prior art keywords
foundation
wind turbine
wood material
foundation according
underground part
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
EP11778790.3A
Other languages
German (de)
French (fr)
Other versions
EP2625343B8 (en
EP2625343B1 (en
Inventor
Gregor Prass
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.)
TimberTower GmbH
Original Assignee
TimberTower 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 TimberTower GmbH filed Critical TimberTower GmbH
Publication of EP2625343A1 publication Critical patent/EP2625343A1/en
Application granted granted Critical
Publication of EP2625343B1 publication Critical patent/EP2625343B1/en
Publication of EP2625343B8 publication Critical patent/EP2625343B8/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
    • 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

Definitions

  • the invention relates to a foundation for a wind turbine with an above-ground and an underground part, wherein on the above-ground part a connection possibility for a wind turbine is provided. Furthermore, the invention relates to a wind turbine with a foundation described above.
  • Wind turbines are used to generate electrical energy from wind.
  • a wind turbine is a device with a foundation, a tower built on the foundation, and a nacelle placed on the tower. At the nacelle is the drive unit connected to rotor blades for power generation.
  • the static loads generated by the nacelle on the tower and the dynamic loads generated by the rotation of the rotary blades of the rotor and the possibility of movement of the nacelle in response to the wind direction are derived via the designed tower in the foundation of the wind turbine.
  • Such foundations are produced for example as a flat foundations in the form of concrete bodies as a solid body.
  • a disadvantage of such bodies is that after reaching the Endnumberedszeitticians of the wind turbine after the wind turbine has to be dismantled, the foundation must also be laboriously dismantled. Furthermore, especially in the production of the foundation as a solid body, the manufacturing costs through the reinforced concrete foundation are very high. From DE 102 45 078 A1 it is known to build a wind turbine in the form of an above-ground foundation, in which the system is erected on a container. The disadvantage here is that the loads that can be absorbed by such a container are too low, as it is possible to build on today's standard, permanently installed wind turbine.
  • a reinforced concrete foundation is made, consisting of ring segments that are erected as an open body in the ground so that no solid body is used, resulting in material savings and thus cost savings.
  • EP 1 074 663 A1 Another way to reduce costs is disclosed in EP 1 074 663 A1.
  • a star-shaped concrete foundation of three sections which are arranged on a base section on which the wind turbine is built. At the end points, the sections are additionally secured in the form of a deep foundation in addition to the load suspension.
  • the execution is intended as a solid body, by the reduction of the boom and the additional deep foundation, the required mass is reduced, which causes a cost reduction.
  • the elaborate dismantling remains.
  • the object of the invention is achieved in terms of the foundation in that the underground part is at least partially made of a wood material.
  • a wood-based material is capable of producing the static and dynamic loads caused by the wind turbine as well, or even better, than one Concrete foundation to record.
  • the construction costs for 1 m 3 of mass are up to 30% lower.
  • the cost of the deconstruction measures is reduced after the end of the life of the wind turbine, since it is easier to dismantle than a comparable concrete foundation.
  • the decomposition processes which start during the lifetime of the wood foundations also facilitate the dismantling or the readiness for dismantling is no longer necessary, since it is ensured that the decay process by itself by the wood material is decomposed over a defined period.
  • the underground part is at least partially a hollow body.
  • a support structure preferably made of a wood material, is provided on the plates, preferably made of a wood material, are attached.
  • in the interior of the subterranean support elements are provided, preferably radially outwardly from the center of the foundation, preferably as part of the supporting structure and / or that a subdivided into at least two sections middle region is provided, wherein preferably the subdivision in the horizontal direction he follows.
  • a further teaching of the invention provides that the above-ground part is placed on a support, which is preferably placed on a support plate, or extended in the underground part is executed, preferably in one piece, which is preferably placed on a support plate. In such a way, the occurring loads can be transferred more easily into the foundation.
  • the wood-based material is solid wood, glued laminated timber and / or cross-laminated timber. These wooden materials are readily available low-cost materials with adequate static and dynamic load capacity.
  • Another teaching of the invention provides that means for ventilating the hollow body are provided, which are preferably openings in the supporting structure and / or divided middle sections. By providing ventilation, it is possible to positively influence the life expectancy of the wooden materials according to the necessary parameters.
  • the object according to the invention with regard to the wind power plant is achieved by a wind turbine with a foundation of the type described above by introducing the heat accumulating in the wind turbine into the foundation. Furthermore, the object of the invention is achieved by the use of the heat generated in the wind turbine for drying a foundation of the type described above.
  • FIG. 1 is a side sectional view of a foundation according to the invention
  • Fig. 2 is a plan view of Fig. 1
  • Fig. 3 is a sectional view in plan view below the viewing plane to Fig. 2, and
  • Fig. 4 is a view analogous to FIG. 3 with illustrated ventilation path.
  • the foundation 10 consists of an underground part 11 and an above-ground part 12.
  • a connection for a tower of a wind turbine On an upper side of the above-ground part 12, which may be annular or polygonal, there is a connection for a tower of a wind turbine.
  • the tower is the Wind turbine also designed as a polygonal wooden tower.
  • the underground part 11 is constructed, for example, on a floor plate (not shown) serving as an erection base. This may be a concrete slab or a compacted sand foundation or the like.
  • a floor 15 is built of wood.
  • vertical side walls 16 are built.
  • the support 19 either serves as a connection for the above-ground part 12 or, as shown in FIG. 1, is made in one piece with it.
  • the support 19 consists of vertically arranged plates 25 which form a central portion 20.
  • the central portion 20 has a horizontal center plate 21 as a parting plane.
  • the space between the ceiling 24 and center plate 21 is an upper chamber 23.
  • Between the middle plate 21 and the support plate 18 or the bottom 15 is a lower chamber 22nd
  • the inclined side walls 17 are designed trapezoidal. This is shown in plan view in Fig. 2 and dashed lines in Fig. 3.
  • reinforcement bearing plates 26, 27 are provided of different thickness, which are arranged on the inclined side walls 17. These are also trapezoidal, but cover several inclined side walls 17.
  • supporting wall elements 28 may be provided within the foundation 10, radially from the central portion 20 to the vertical side walls 16. These may be provided under the points of contact of the inclined side walls 17 or, as shown in Fig. 3, offset thereto are provided.
  • the foundation can be erected with a supporting framework (not shown) on which appropriate wooden panels are then placed.
  • the walls 16, 17, 25, 28 plates 21, 25, 26, 27, the bottom 15 and the support 20 consist of either stacked layer elements or of panel elements made of cross laminated timber or glued laminated timber.
  • FIG. 4 shows a fan 33, by means of which the air is moved along the ventilation path 35 shown in FIG.

Abstract

The invention relates to a foundation for a wind turbine, comprising an above-ground and a below-ground part (11, 12), a connecting means (14) for a wind turbine being provided on the above-ground part (11). The invention is characterized in that the below-ground part (12) is at least partly made of a wood material.

Description

Fundament für eine Windkraftanlage Beschreibung  Foundation for a wind turbine Description
Die Erfindung betrifft ein Fundament für eine Windkraftanlage mit einem oberirdischen und einem unterirdischen Teil, wobei auf dem oberirdischen Teil eine Anschlussmöglichkeit für eine Windkraftanlage vorgesehen ist. Des Weiteren betrifft die Erfindung eine Windkraftanlage mit einem vorbeschriebenen Fundament. The invention relates to a foundation for a wind turbine with an above-ground and an underground part, wherein on the above-ground part a connection possibility for a wind turbine is provided. Furthermore, the invention relates to a wind turbine with a foundation described above.
Zur Erzeugung von elektrischer Energie aus Wind werden Windkraftanlagen verwendet. Bei einer Windkraftanlage handelt es sich um eine Vorrichtung mit einem Fundament, einem Turm, der auf dem Fundament errichtet wird, und einer Gondel, die auf dem Turm angeordnet wird. An der Gondel befindet sich die mit Rotorblättern verbundene Antriebseinheit zur Energieerzeugung. Wind turbines are used to generate electrical energy from wind. A wind turbine is a device with a foundation, a tower built on the foundation, and a nacelle placed on the tower. At the nacelle is the drive unit connected to rotor blades for power generation.
Die durch die Gondel auf den Turm erzeugten statischen Belastungen und die durch die Rotation der Drehflügel des Rotors und der Bewegungsmöglichkeit der Gondel in Abhängigkeit der Windrichtung erzeugten dynamischen Belastungen werden über den dafür ausgelegten Turm in das Fundament der Windkraftanlage abgeleitet. The static loads generated by the nacelle on the tower and the dynamic loads generated by the rotation of the rotary blades of the rotor and the possibility of movement of the nacelle in response to the wind direction are derived via the designed tower in the foundation of the wind turbine.
Solche Fundamente werden beispielsweise als Flachgründungen in Form von Betonkörpern als Vollkörper hergestellt. Nachteilig bei solchen Körpern ist, dass nach dem Erreichen des Endnutzungszeitpunkts der Windkraftanlage, nachdem die Windkraftanlage zurückgebaut werden muss, das Fundament ebenfalls aufwendig rückgebaut werden muss. Des Weiteren sind insbesondere bei der Herstellung des Fundaments als Vollkörper die Herstellungskosten durch das Stahlbetonfundament sehr hoch. Aus DE 102 45 078 A1 ist bekannt, eine Windkraftanlage in Form eines oberirdischen Fundaments zu errichten, bei dem die Anlage auf einem Container errichtet wird. Nachteilig hierbei ist, dass die Lasten, die durch einen solchen Container aufgenommen werden können, zu gering sind, als dass es möglich ist, darauf eine heute übliche, fest installierte, Windkraftanlage zu errichten. Such foundations are produced for example as a flat foundations in the form of concrete bodies as a solid body. A disadvantage of such bodies is that after reaching the Endnutzungszeitpunkts of the wind turbine after the wind turbine has to be dismantled, the foundation must also be laboriously dismantled. Furthermore, especially in the production of the foundation as a solid body, the manufacturing costs through the reinforced concrete foundation are very high. From DE 102 45 078 A1 it is known to build a wind turbine in the form of an above-ground foundation, in which the system is erected on a container. The disadvantage here is that the loads that can be absorbed by such a container are too low, as it is possible to build on today's standard, permanently installed wind turbine.
Eine Möglichkeit der Materialreduzierung ist aus WO 02/27105 A1 offenbart. Dabei wird ein Fundament aus Stahlbeton hergestellt, das aus Ringsegmenten besteht, die als offener Körper in dem Boden errichtet werden, so dass kein Vollkörper verwendet wird, was Materialeinsparungen und damit Kosteneinsparungen zur Folge hat. Allerdings ist es auch hier notwendig, aufwendige Rückbaumaßnahmen vorzusehen. One possibility of material reduction is disclosed in WO 02/27105 A1. A reinforced concrete foundation is made, consisting of ring segments that are erected as an open body in the ground so that no solid body is used, resulting in material savings and thus cost savings. However, it is also necessary here to provide costly demolition measures.
Ein anderer Weg zur Reduzierung der Kosten ist in EP 1 074 663 A1 offenbart. Hier wird ein sternförmiges Betonfundament aus drei Abschnitten, die an einem Basisabschnitt, auf dem die Windkraftanlage errichtet wird, angeordnet werden. An den Endpunkten werden die Abschnitte zusätzlich in Form einer Tiefgründung zusätzlich zur Lastaufnahme gesichert. Zwar ist die Ausführung als Vollkörper vorgesehen, durch die Reduzierung der Ausleger und die zusätzliche Tiefgründung wird die benötigte Masse reduziert, was eine Kostenreduzierung bewirkt. Der aufwendige Rückbau bleibt allerdings bestehen. Another way to reduce costs is disclosed in EP 1 074 663 A1. Here is a star-shaped concrete foundation of three sections, which are arranged on a base section on which the wind turbine is built. At the end points, the sections are additionally secured in the form of a deep foundation in addition to the load suspension. Although the execution is intended as a solid body, by the reduction of the boom and the additional deep foundation, the required mass is reduced, which causes a cost reduction. However, the elaborate dismantling remains.
Daher ist es Aufgabe der Erfindung, eine Fundament für eine Windkraftanlage zu schaffen, bei der zum einen eine Kostenreduktion gegenüber den bekannten Fundamenten erfolgt, gleichzeitig die notwendigen Lasten aufgenommen werden können, und es möglich ist, die Kosten und den Aufwand bei dem Rückbau des Fundamentes zu reduzieren. It is therefore an object of the invention to provide a foundation for a wind turbine, in which on the one hand a cost reduction over the known foundations takes place, at the same time the necessary loads can be absorbed, and it is possible, the cost and effort in the dismantling of the foundation to reduce.
Die erfindungsgemäße Aufgabe wird hinsichtlich des Fundaments dadurch gelöst, dass der unterirdische Teil wenigstens teilweise aus einem Holzwerkstoff hergestellt ist. The object of the invention is achieved in terms of the foundation in that the underground part is at least partially made of a wood material.
Ein Holzwerkstoff ist in der Lage, die durch die Windkraftanlage hervorgerufenen statischen und dynamischen Belastungen ähnlich gut, oder sogar besser, als ein Betonfundament aufzunehmen. Gleichzeitig sind die Errichtungskosten in Bezug auf 1 m3 Masse bis zu 30 % geringer. Gleichzeitig wird der Aufwand für die Rückbaumaßnahmen nach Beendigung der Lebensdauer der Windkraftanlage reduziert, da er leichter demontierbar ist, als ein vergleichbares Betonfundament. Weiterhin erleichtern die während der Lebensdauer des Holzfundaments beginnende Zersetzungsprozesse ebenfalls den Rückbau oder die Rückbaubarkeit wird nicht weiter notwendig, da gewährleistet ist, dass sich der Rückbauprozess von alleine durchführt, indem der Holzwerkstoff über einen definierten Zeitraum zersetzt wird. A wood-based material is capable of producing the static and dynamic loads caused by the wind turbine as well, or even better, than one Concrete foundation to record. At the same time, the construction costs for 1 m 3 of mass are up to 30% lower. At the same time the cost of the deconstruction measures is reduced after the end of the life of the wind turbine, since it is easier to dismantle than a comparable concrete foundation. Furthermore, the decomposition processes which start during the lifetime of the wood foundations also facilitate the dismantling or the readiness for dismantling is no longer necessary, since it is ensured that the decay process by itself by the wood material is decomposed over a defined period.
Eine weitere Lehre der Erfindung sieht vor, dass der unterirdische Teil wenigstens teilweise ein Hohlkörper ist. Durch das Vorsehen eines Hohlkörpers bei Beibehaltung der statischen und dynamischen Belastbarkeit ist es möglich, die Errichtungskosten weiter zu reduzieren. Des Weiteren ist es vorteilhaft, dass auf einer Bodenplatte, bevorzugt aus einem Holzwerkstoff, ein Stützbauwerk, bevorzugt aus einem Holzwerkstoff, vorgesehen ist, auf dem Platten, bevorzugt aus einem Holzwerkstoff, angebracht sind. Vorteilhaft ist dabei, dass im Inneren des unterirdischen Teils Stützelemente vorgesehen sind, bevorzugt radial vom Mittelpunkt des Fundaments nach außengerichtet, bevorzugt als Bestandteil des Stützbauwerks und/oder, dass eine in wenigstens zwei Abschnitte unterteilter Mittelbereich vorgesehen ist, wobei bevorzugt die Unterteilung in Horizontaler Richtung erfolgt. Das Vorsehen einer solchen Konstruktion ermöglicht es, die notwendigen Materialien auf einfache Weise zum Errichtungsort zu transportieren, da kein hoher Vorfertigungsgrad in Form von voluminösen Teilen notwendig ist. Des Weiteren ist es möglich, bei gleichbleibender statischen und dynamischen Belastbarkeit, die verwendeten Materialien weiter zu reduzieren. Alternativ ist es vorteilhaft, den Fundamentkörper vollständig aus einem Holzwerkstoff herzustellen. Eine weitere Lehre der Erfindung sieht vor, dass der oberirdische Teil auf einem Auflager aufgesetzt ist, das bevorzugt auf einer Auflagerplatte aufgestellt ist, oder in den unterirdischen Teil verlängert ausgeführt ist, bevorzugt einstückig, der bevorzugt auf einer Auflagerplatte aufgestellt ist. Auf eine solche Weise können die Auftretenden Lasten einfacher in das Fundament übertragen werden. Eine weitere Lehre der Erfindung sieht vor, dass es sich bei dem Holzwerkstoff um Vollholz, Brettschichtholz und/oder Brettsperrholz handelt. Bei diesen Holzwerkstoffen handelt es sich um gut verfügbare kostengünstige Werkstoffe mit entsprechend hinreichender statischer und dynamischer Belastbarkeit. Another teaching of the invention provides that the underground part is at least partially a hollow body. By providing a hollow body while maintaining the static and dynamic load capacity, it is possible to further reduce the construction costs. Furthermore, it is advantageous that on a base plate, preferably made of a wood material, a support structure, preferably made of a wood material, is provided on the plates, preferably made of a wood material, are attached. It is advantageous that in the interior of the subterranean support elements are provided, preferably radially outwardly from the center of the foundation, preferably as part of the supporting structure and / or that a subdivided into at least two sections middle region is provided, wherein preferably the subdivision in the horizontal direction he follows. The provision of such a construction makes it possible to transport the necessary materials in a simple manner to the installation site, since no high degree of prefabrication in the form of bulky parts is necessary. Furthermore, it is possible, with constant static and dynamic load capacity, to further reduce the materials used. Alternatively, it is advantageous to make the foundation body completely from a wood material. A further teaching of the invention provides that the above-ground part is placed on a support, which is preferably placed on a support plate, or extended in the underground part is executed, preferably in one piece, which is preferably placed on a support plate. In such a way, the occurring loads can be transferred more easily into the foundation. A further teaching of the invention provides that the wood-based material is solid wood, glued laminated timber and / or cross-laminated timber. These wooden materials are readily available low-cost materials with adequate static and dynamic load capacity.
Eine weitere Lehre der Erfindung sieht vor, dass Mittel zur Belüftung des Hohlkörpers vorgesehen sind, bei denen es sich bevorzugt um Öffnungen im Stützbauwerk und/oder aufgeteilte Mittelabschnitte handelt. Durch das Vorsehen von Belüftung ist es möglich, die Lebenserwartung der Holzwerkstoffe entsprechend der notwendigen Parameter positiv zu beeinflussen. Another teaching of the invention provides that means for ventilating the hollow body are provided, which are preferably openings in the supporting structure and / or divided middle sections. By providing ventilation, it is possible to positively influence the life expectancy of the wooden materials according to the necessary parameters.
Des Weiteren wird die erfindungsgemäße Aufgabe hinsichtlich der Windkraftanlage durch eine Windkraftanlage mit einem Fundament der zuvor beschriebenen Art gelöst, indem die in der Windkraftanlage anfallende Wärme in das Fundament eingeleitet wird. Weiterhin wird die erfindungsgemäße Aufgabe durch die Verwendung der in der Windkraftanlage anfallenden Wärme zur Trocknung eines Fundaments der vorbeschriebenen Art gelöst. Nachfolgend wird die Erfindung an Hand eines Ausführungsbeispiels in Verbindung mit einer Zeichnung näher erläutert. Dabei zeigen: Furthermore, the object according to the invention with regard to the wind power plant is achieved by a wind turbine with a foundation of the type described above by introducing the heat accumulating in the wind turbine into the foundation. Furthermore, the object of the invention is achieved by the use of the heat generated in the wind turbine for drying a foundation of the type described above. The invention will be explained in more detail with reference to an embodiment in conjunction with a drawing. Showing:
Fig. 1 eine seitliche Schnittansicht eines erfindungsgemäßen Fundaments, Fig. 2 eine Draufsicht zu Fig. 1 , 1 is a side sectional view of a foundation according to the invention, Fig. 2 is a plan view of Fig. 1,
Fig. 3 eine Schnittansicht in Draufsicht unterhalb der Sichtebene zu Fig. 2, und Fig. 3 is a sectional view in plan view below the viewing plane to Fig. 2, and
Fig. 4 eine Ansicht analog Fig. 3 mit dargestelltem Belüftungsweg. Fig. 4 is a view analogous to FIG. 3 with illustrated ventilation path.
Das erfindungsgemäße Fundament 10 besteht aus einem unterirdischen Teil 11 und einem oberirdischen Teil 12. Auf einer Oberseite des oberirdischen Teils 12, der ringförmig oder polygonal ausgeführt sein kann, befindet sich ein Anschluss für einen Turm einer Windkraftanlage. Vorteilhafterweise ist der Turm der Windkraftanlage ebenfalls als polygonaler Turm aus Holz ausgeführt. Der unterirdische Teil 11 ist beispielsweise auf einer Bodenplatte (nicht dargestellt) aufgebaut, die als Errichtungsbasis dient. Diese kann eine Betonplatte oder auch ein verdichtetes Sandfundament oder dgl. sein. Auf der Bodenplatte ist ein Boden 15 aus Holz errichtet. Auf dem Boden 15 sind senkrechte Seitenwände 16 errichtet. Des Weiteren in eine Auflagerplatte 18 vorgesehen. Mittig auf der Bodenplatte 15 bzw. der Auflagerplatte 18 ist ein Auflager 19 vorgesehen. Das Auflager 19 dient entweder als Anschluss für den oberirdischen Teil 12 oder ist wie in Fig. 1 gezeigt einstückig mit diesem ausgeführt. Das Auflager 19 besteht aus vertikal angeordneten Platten 25, den einen Mittelabschnitt 20 bilden. Der Mittelabschnitt 20 weist eine horizontale Mittelplatte 21 als Trennebene auf. Im oberen Teil ist eine Decke 24 vorgesehen. Der Raum zwischen der Decke 24 und Mittelplatte 21 ist eine obere Kammer 23. Zwischen der Mittelplatte 21 und der Auflagerplatte 18 oder dem Boden 15 ist eine untere Kammer 22. The foundation 10 according to the invention consists of an underground part 11 and an above-ground part 12. On an upper side of the above-ground part 12, which may be annular or polygonal, there is a connection for a tower of a wind turbine. Advantageously, the tower is the Wind turbine also designed as a polygonal wooden tower. The underground part 11 is constructed, for example, on a floor plate (not shown) serving as an erection base. This may be a concrete slab or a compacted sand foundation or the like. On the bottom plate, a floor 15 is built of wood. On the floor 15 vertical side walls 16 are built. Furthermore, provided in a support plate 18. Centered on the bottom plate 15 and the support plate 18, a support 19 is provided. The support 19 either serves as a connection for the above-ground part 12 or, as shown in FIG. 1, is made in one piece with it. The support 19 consists of vertically arranged plates 25 which form a central portion 20. The central portion 20 has a horizontal center plate 21 as a parting plane. In the upper part of a ceiling 24 is provided. The space between the ceiling 24 and center plate 21 is an upper chamber 23. Between the middle plate 21 and the support plate 18 or the bottom 15 is a lower chamber 22nd
Auf den senkrechten Seitenwänden 16 schließen sich geneigte Seitenwände 17 an. Der Boden weist eine polygonale Form auf, mit der u. U. eine Annäherung an einen Kreis bewirkt wird, (siehe Fig. 2 bis 4) Die geneigten Seitenwände 17 sind trapezförmig ausgeführt. Dieses ist in Draufsicht in Fig. 2 und gestrichelt in Fig. 3 dargestellt. Als Verstärkung sind Auflagerplatten 26, 27 von unterschiedlicher Dicke vorgesehen, die auf den geneigten Seitenwänden 17 angeordnet sind. Diese sind ebenfalls trapezförmig, überdecken allerdings mehrere geneigte Seitenwände 17. Alternativ oder zusätzlich können stützende Wandelemente 28 innerhalb des Fundaments 10, radial vom Mittelabschnitt 20 zu den senkrechten Seitenwänden 16 hin vorgesehen werden. Diese können unter den Berührungspunkten der geneigten Seitenwände 17 vorgesehen werden oder wie in Fig. 3 dargestellt, versetzt dazu vorgesehen werden. Alternativ kann das Fundament mit einem stützenden Fachwerk (nicht dargestellt) errichtet werden, auf dem dann entsprechende Holzplatten angebracht werden. On the vertical side walls 16 are inclined side walls 17 close. The bottom has a polygonal shape, with the u. U. an approximation to a circle is effected, (see Figs. 2 to 4) The inclined side walls 17 are designed trapezoidal. This is shown in plan view in Fig. 2 and dashed lines in Fig. 3. As reinforcement bearing plates 26, 27 are provided of different thickness, which are arranged on the inclined side walls 17. These are also trapezoidal, but cover several inclined side walls 17. Alternatively or additionally, supporting wall elements 28 may be provided within the foundation 10, radially from the central portion 20 to the vertical side walls 16. These may be provided under the points of contact of the inclined side walls 17 or, as shown in Fig. 3, offset thereto are provided. Alternatively, the foundation can be erected with a supporting framework (not shown) on which appropriate wooden panels are then placed.
Die Wände 16, 17, 25, 28 Platten 21 , 25, 26, 27, der Boden 15 und das Auflager 20 bestehen entweder aus übereinander angeordneten Schichtelementen oder aus Plattenelementen, die aus Brettsperrholz oder Brettschichtholz hergestellt sind. The walls 16, 17, 25, 28 plates 21, 25, 26, 27, the bottom 15 and the support 20 consist of either stacked layer elements or of panel elements made of cross laminated timber or glued laminated timber.
Als Mittel zur Belüftung des Fundaments sind Öffnungen 29 in der Decke 24 vorgesehen, durch die Zuluft und feuchte Abluft transportiert werden können. Weiterhin weisen die vertikalen Seitenwände 25 Öffnungen 30, 31 auf, von denen eine in der unteren Kammer 22 und eine in der oberen Kammer 23 sich befindet und. Lüftungstechnisch sind die Kammern 22, 23 von einander getrennt. Zwischen den vertikalen Seitenwänden 16 und den Platte 25 werden durch die Wandelemente 28 weitere Kammern 34 gebildet. Diese Kammern 34 sind über Öffnungen 32 in den Wandelementen 28 lüftungstechnisch miteinander verbunden. Exemplarisch ist in Fig. 4 ein Lüfter 33 dargestellt, durch den die Luft entlang des in Fig. 4 dargestellten Lüftungsweges 35 bewegt wird. As means for ventilating the foundation openings 29 are provided in the ceiling 24, can be transported through the supply air and humid exhaust air. Furthermore, the vertical side walls 25 have openings 30, 31, one of which is located in the lower chamber 22 and one in the upper chamber 23 and. Ventilation, the chambers 22, 23 are separated from each other. Between the vertical side walls 16 and the plate 25 28 further chambers 34 are formed by the wall elements. These chambers 34 are connected via openings 32 in the wall elements 28 ventilation technology. By way of example, FIG. 4 shows a fan 33, by means of which the air is moved along the ventilation path 35 shown in FIG.
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Bezugszeichenliste LIST OF REFERENCE NUMBERS
10 Fundament 10 foundation
11 unterirdischer Teil 11 underground part
12 oberirdischer Teil12 aboveground part
13 Turmanschluss13 Turmanschluss
14 Oberseite 14 top
15 Boden  15 floor
16 Seitenwand, senkrecht 16 side wall, vertical
17 Seitenwand, geneigt17 sidewall, inclined
18 Auflagerplatte 18 support plate
19 Auflager  19 supports
20 Mittelabschnitt 20 middle section
21 Mittelplatte 21 middle plate
22 untere Kammer 22 lower chamber
23 obere Kammer23 upper chamber
24 Decke 24 ceiling
25 Platte  25 plate
26 Auflagerplatte  26 support plate
27 Auflagerplatte  27 support plate
28 Wandelement  28 wall element
29 Öffnung  29 opening
30 Öffnung  30 opening
31 Öffnung  31 opening
32 Öffnung  32 opening
33 Lüfter  33 fans
34 Kammer  34 chamber
35 Lüftungsweg  35 ventilation path

Claims

Patentansprüche claims
1. Fundament für eine Windkraftanlage mit einem oberirdischen und einem unterirdischen Teil (11 , 12), wobei auf dem oberirdischen Teil (12) eine Anschlussmöglichkeit (14) für eine Windkraftanlage vorgesehen ist, dadurch gekennzeichnet, dass der unterirdische Teil (11 ) wenigstens teilweise aus einem Holzwerkstoff hergestellt ist. 1. foundation for a wind turbine with an above-ground and an underground part (11, 12), wherein on the above-ground part (12) a connection possibility (14) is provided for a wind turbine, characterized in that the underground part (11) at least partially made of a wood material.
2. Fundament nach Anspruch 1 , dadurch gekennzeichnet, dass der unterirdische Teil (12) wenigstens teilweise ein Hohlkörper ist. 2. Foundation according to claim 1, characterized in that the underground part (12) is at least partially a hollow body.
3. Fundament nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass auf einer Bodenplatte (15), bevorzugt aus Holzwerkstoff, ein Stützbauwerk (16, 17, 19, 20, 25, 28), bevorzugt aus einem Holzwerkstoff, vorgesehen ist, das aus Platten besteht und/oder auf dem Platten, bevorzugt aus einem Holzwerkstoff, angebracht sind. 3. Foundation according to claim 1 or 2, characterized in that on a bottom plate (15), preferably made of wood material, a support structure (16, 17, 19, 20, 25, 28), preferably made of a wood material, is provided, consisting of Plates and / or on the plates, preferably made of a wood material, are attached.
4. Fundament nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass im Inneren des unterirdischen Teils (11 ) Stützelemente (28) vorgesehen sind, bevorzugt radial vom Mittelpunkt des Fundaments nach außen gerichtet, bevorzugt als Bestandteil des Stützbauwerks (16, 17, 19, 20, 25, 28) und/oder, dass eine in wenigstens zwei Abschnitte (22, 23) unterteilter Mittelbereich (20) vorgesehen ist, wobei bevorzugt die Unterteilung in horizontaler Richtung erfolgt. 4. Foundation according to claim 2 or 3, characterized in that in the interior of the underground part (11) supporting elements (28) are provided, preferably radially directed from the center of the foundation to the outside, preferably as part of the supporting structure (16, 17, 19, 20, 25, 28) and / or that in at least two sections (22, 23) divided central region (20) is provided, wherein preferably the division takes place in the horizontal direction.
5. Fundament nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass der oberirdische Teil (12) auf einem Auflager (19) aufgesetzt ist, das bevorzugt auf einer Auflagerplatte (18) aufgestellt ist, oder in den unterirdischen Teil (11 ) verlängert ausgeführt ist, bevorzugt einstückig, der bevorzugt auf einer Auflagerplatte (18) aufgestellt ist. 5. Foundation according to one of claims 2 to 4, characterized in that the above-ground part (12) on a support (19) is placed, which is preferably placed on a support plate (18), or extended into the underground part (11) is executed, preferably in one piece, which is preferably placed on a support plate (18).
6. Fundament nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass es sich bei dem Holzwerkstoff um Vollholz, um Brettschichtholz und/oder Brettsperrholz handelt. 6. Foundation according to one of claims 1 to 5, characterized in that it is the wood material to solid wood, glued laminated timber and / or cross laminated timber.
7. Fundament nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass Mittel zur Belüftung des Hohlkörpers vorgesehen sind, bei denen es sich bevorzugt um Öffnungen (29, 30, 31 , 32) im Stützbauwerk (15, 16, 17, 18, 19, 20, 25, 28) und/oder aufgeteilte Mittelabschnitte (22, 23) handelt. 7. Foundation according to one of claims 2 to 6, characterized in that means for ventilating the hollow body are provided, which are preferably openings (29, 30, 31, 32) in the supporting structure (15, 16, 17, 18, 19, 20, 25, 28) and / or split middle sections (22, 23).
8. Fundament nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das Fundament (10) eine polygonale Form aufweist. 8. Foundation according to one of claims 1 to 7, characterized in that the foundation (10) has a polygonal shape.
9. Windkraftanlage mit einem Fundament nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die in der Windkraftanlage anfallende Wärme in das Fundament (10) eingeleitet wird. 9. Wind turbine with a foundation according to one of claims 1 to 8, characterized in that the heat generated in the wind turbine heat is introduced into the foundation (10).
10. Verwendung der in einer Windkraftanlage anfallenden Wärme zur Trocknung eines Fundaments (10) nach einem der Ansprüche 1 bis 8. 10. Use of the heat generated in a wind turbine for drying a foundation (10) according to one of claims 1 to 8.
**** ****
EP11778790.3A 2010-10-08 2011-09-30 Foundation for a wind motor Not-in-force EP2625343B8 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010047773A DE102010047773B4 (en) 2010-10-08 2010-10-08 Foundation for a wind turbine
PCT/EP2011/004879 WO2012045413A1 (en) 2010-10-08 2011-09-30 Foundation for a wind turbine

Publications (3)

Publication Number Publication Date
EP2625343A1 true EP2625343A1 (en) 2013-08-14
EP2625343B1 EP2625343B1 (en) 2013-12-25
EP2625343B8 EP2625343B8 (en) 2014-02-12

Family

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EP11778790.3A Not-in-force EP2625343B8 (en) 2010-10-08 2011-09-30 Foundation for a wind motor

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US (1) US8833004B2 (en)
EP (1) EP2625343B8 (en)
JP (1) JP2013542364A (en)
CN (1) CN103210151B (en)
CA (1) CA2813670C (en)
DE (1) DE102010047773B4 (en)
RU (1) RU2013120912A (en)
WO (1) WO2012045413A1 (en)

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Also Published As

Publication number Publication date
RU2013120912A (en) 2014-11-20
DE102010047773A1 (en) 2012-04-12
CA2813670A1 (en) 2012-04-12
CN103210151B (en) 2015-08-05
DE102010047773B4 (en) 2012-08-09
EP2625343B8 (en) 2014-02-12
CN103210151A (en) 2013-07-17
EP2625343B1 (en) 2013-12-25
US20130326970A1 (en) 2013-12-12
WO2012045413A1 (en) 2012-04-12
JP2013542364A (en) 2013-11-21
US8833004B2 (en) 2014-09-16
CA2813670C (en) 2015-05-05

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