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EP1631722A2 - Foundation for a wind energy plant - Google Patents

Foundation for a wind energy plant

Info

Publication number
EP1631722A2
EP1631722A2 EP04731827A EP04731827A EP1631722A2 EP 1631722 A2 EP1631722 A2 EP 1631722A2 EP 04731827 A EP04731827 A EP 04731827A EP 04731827 A EP04731827 A EP 04731827A EP 1631722 A2 EP1631722 A2 EP 1631722A2
Authority
EP
European Patent Office
Prior art keywords
foundation
foot
base element
modules
holes
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Withdrawn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
EP04731827A
Other languages
German (de)
French (fr)
Inventor
Aloys Wobben
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.)
Wobben Properties GmbH
Original Assignee
Wobben Properties 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 Wobben Properties GmbH filed Critical Wobben Properties GmbH
Publication of EP1631722A2 publication Critical patent/EP1631722A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • E02D27/42—Foundations for poles, masts or chimneys
    • E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/22—Sockets or holders for poles or posts
    • E04H12/2253—Mounting poles or posts to the holder
    • 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
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2200/00—Geometrical or physical properties
    • E02D2200/16—Shapes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/30—Miscellaneous comprising anchoring details
    • 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

Definitions

  • the present invention relates to a foundation for a wind energy installation and a wind energy installation with such a foundation.
  • the foundations for wind turbines have essentially been produced by excavating a construction pit, introducing a cleanliness layer, installing a foundation installation part, performing the required reinforcement work and then filling the construction pit with cement, the cement being transported to the required location using cement trucks and into the construction pit is poured.
  • the foundation installation part is usually designed as a hollow cylinder and is generally prefabricated and transported as a whole to the respective installation location.
  • the invention is based on the idea of producing the elements that are important for the statics of the foundation of the wind power installation in advance.
  • the foundation has a foundation base element 20 and at least two foundation foot modules 10, wherein the foot modules can be fastened to the base element 20 and wherein the base element 20 and the at least two foot modules 10 represent prefabricated elements. Because the foundation does not consist of one floor, but consists of several elements, these elements can be transported separately and assembled on site, whereby the quality achieved by manufacturing in a factory is not impaired. Since the Elements of the foundation have not insignificant dimensions, it is much easier to transport only the individual elements.
  • the foundation base element is designed as a hollow cylinder and the foundation foot modules 10 are aligned radially to the axis of symmetry of the foundation base element.
  • the radial alignment of the foot modules ensures the required statics of the foundation, since the foot modules are attached around the base element as required ; can.
  • the foot modules can be fastened in the cavity of the base element using suitable fastening means.
  • the foot module each has a foot plate and a foot support element, which are each arranged radially to the axis of symmetry of the base element.
  • the foot support element is perpendicular to the footplate while the footplate is arranged substantially perpendicular to the axis of symmetry of the base element in the fastened state. The static forces acting on the wind turbine are better dissipated to the ground by the base plate and the support element.
  • the height of the support element decreases radially outward. This tapering of the support element towards the outside also serves to improve the statics.
  • the width of the base plate increases radially outwards, which also serves to improve the statics.
  • both the support elements and the foot plates have radially aligned through holes.
  • the base element has corresponding through holes, so that the foot modules can be fastened to the base element, for example with the aid of suitable fastening means, by means of these through holes.
  • the foot plates and / or the support elements have further through holes which have a diameter which allows lashing straps to be passed through them during transport in order to securely fasten the foot modules.
  • the base element and the foot modules consist of reinforced concrete.
  • Figure 1 is a perspective view of a foundation according to a first embodiment.
  • FIG. 2a to c show different views of the foundation from FIG. 1;
  • FIG. 5a and b are a top and a side view of foundation feet according to FIG. 4a, which are stacked for transport;
  • FIG. 6 shows a perspective view of a foundation according to a second exemplary embodiment
  • Fig. 7 is a perspective view of an element of the
  • FIG. 8 is a top view of an element of the foundation of FIG. 6.
  • the foundation 1 shows a perspective view of the foundation according to a first exemplary embodiment of the invention.
  • the foundation 1 essentially consists of a hollow cylindrical base element 20 and a multiplicity of foot modules 10, which are aligned evenly distributed over its circumference radially to the longitudinal axis or axis of symmetry of the base element 20.
  • FIG. 2a shows a top view of the foundation 1 from FIG. 1.
  • a plurality of holes 21 are arranged around the circumference of the hollow cylindrical base element 20. These holes are intended to accommodate fasteners by means of which a tower of a wind turbine can be fastened to the foundation 1.
  • the foot modules 10 consist of a foot plate 11 and a support element 12.
  • the various foot modules 10 are each spaced apart by 36 °, so that 10 foot elements can be attached around the base element 20. Of course, both more and fewer foot modules can be arranged around the base element 20 in order to ensure the required structural requirements.
  • the base plates 11 of the base modules 10 are arranged in one plane and perpendicular to the axis of symmetry of the hollow cylindrical base element 20.
  • the support elements 12 are also aligned perpendicular to the base plate 11 and radially to the axis of symmetry of the base element 20, the support element 12 being centered on the base plate 11.
  • the base element 20 has a lower section 22 with a greater thickness than the upper section, on which the holes 21 are provided.
  • Fig. 2c shows a sectional view along the section A-A in Fig. 2b.
  • the thickness of the base plate 11 is essentially constant, while the height of the support element 12 decreases towards the outside.
  • a radially aligned through hole 14 is present in the support element 12.
  • Two through holes 15 are provided in the base plate 11, which are also aligned radially to the axis of symmetry. These through holes 14 and 15 serve to enable the foot modules 10 to be attached to the base element 20, for example with the aid of fastening means.
  • FIG. 4a to e show views of the foot module 10 from FIG. 2a.
  • 4a shows a perspective view of the foot module 10 with the footplate 11 and the support element 12 arranged perpendicularly thereto.
  • the footplate has an inside 11a and an outside 11b.
  • the foot module 10 is attached to the base member 20 with the inside 11a of the foot plate 11.
  • FIG. 4b shows a top view of the foot module 10 from FIG. 4a.
  • the width 11c of the foot plate 11 increases towards the outside.
  • both the inside 11a and the outside 11b of the footplate are curved.
  • the curvature of the inside 11a of the foot plate 11 is adapted to the outside curvature of the base element 20 so that the foot module 10 can be firmly attached to the base element 20.
  • FIG. 4c shows a side view of the foot module 10 from FIG. 4a, this view representing the outside of the foot module 10.
  • this view representing the outside of the foot module 10.
  • the outside 11 b of the foot plate 11 and the outside 12 b of the support element 12 and the two through holes 15 in the foot plate 11 are shown.
  • FIG. 4d shows a side view of the foot module 10 from FIG. 4a.
  • the height 12c of the support element 12 decreases from the inside 12a of the support element 12 to the outside 12b.
  • the through holes 14 in the support element 12 and the through holes 15 in the base plate 11 are also shown.
  • FIG 4e shows the side of the foot module 10 facing the base element 20.
  • the through holes 14 in the support element 12 and the through holes 15 in the foot plate 11 are also shown here.
  • FIGS. 5a and 5b A transport arrangement of a plurality of foot modules 10 is shown in FIGS. 5a and 5b.
  • the various foot modules are stacked on top of one another in such a way that the support elements 12 of two foot modules 10 face each other.
  • 4 foot modules 10 are attached to a pallet 100 in this way.
  • the foot modules 10 are stacked offset from one another.
  • the foot modules 10 can optionally be provided with further through holes. These through holes should be designed in such a way that standard lashing straps can be passed through them so that the foot modules 10 can be securely attached.
  • the provision of such through holes is not a major problem in the manufacture of the foot modules 10, since the holes can be drilled without problems in the factory or corresponding molds can be provided.
  • the statics of the foot modules 10 are not impaired by such through holes.
  • alignment elements can be provided below some of the foot plates 11 or between the foot modules 10 and the base element 20 in order to ensure a precise horizontal alignment of the foundation.
  • the foundation of a wind power plant Due to the modular construction of the foundation of a wind power plant according to the exemplary embodiment of the invention, it is possible to manufacture both the base element 20 and the foot modules 10 in advance in a factory and then to transport them to the installation site.
  • This pre-processing in a factory guarantees a constant quality of the foundations for the wind energy plants.
  • the foundation of a wind turbine can be laid in almost all weather conditions.
  • an excavation pit is first dug and, if appropriate, a cleanliness layer is applied.
  • the base element 20 is then set up and the foot modules 10 are fastened to the base element 20 by means of suitable fastening means. Subsequently, the foundation can be reinforced, after which the construction pit can be filled with concrete.
  • each foot module has a segment section of the base element.
  • the hollow cylindrical base element is divided into a plurality of sections, which are each part of the foot module 10.
  • each foot module 10 has a flange section 60, which in turn is provided with the appropriate holes in order to fasten the corresponding tower segments of a wind power plant to it.
  • FIG. 7 shows a perspective drawing of an individual foot module 10 according to the second exemplary embodiment.
  • the foot module in turn has a foot plate 11 and a support element 12 and a base element section 20a. Holes 15 are provided on the base element 20a, which holes are intended to connect the foot modules to one another. This connection between the foot modules 10 can be made by means of appropriate screw connections or other connections.
  • a flange section 60 for fastening corresponding tower segments is likewise provided on the base element section.
  • FIG. 8 shows a top view of a foot module 10 from FIG. 6 or 7.
  • the width of the foot modules 10 or of the foot plates 11 essentially depends on the number of foot modules 10 provided.
  • a complete circular foundation with an already integrated foundation section for a wind energy installation is obtained.
  • lateral plates can be arranged on the base element sections 20a.
  • 8 shows, among other things, the screws for connecting the respective foot modules 10 and the anchoring of the base element of the foundation section in the foot element (left part of FIG. 8).
  • the foundation according to the second exemplary embodiment can be manufactured in advance, so that the foundation or the foot modules must / must be assembled at the installation site.
  • wind turbines are mentioned in the present application, this means in particular that they are wind turbines that assume a certain size, ie. H. z. B. have a nominal power in the range of about 300 kW to 2 MW, preferably 600 kW and have a hub height (ie tower height) of about 45 to 85 m.
  • the present application is particularly well suited for the construction of an Enercon type E40 or E66 wind turbine with the known tower or hub heights and performance data.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Wind Motors (AREA)
  • Foundations (AREA)

Abstract

The aim of the invention is to prefabricate elements which are important for the structural engineering of the foundation of a wind energy plant, i.e. the supporting and lateral stabilising elements of the foundation.

Description

Fundament für eine Windenergieanlage Foundation for a wind turbine
Die vorliegende Erfindung betrifft ein Fundament für eine Windenergieanlage sowie eine Windenergieanlage mit einem derartigen Fundament.The present invention relates to a foundation for a wind energy installation and a wind energy installation with such a foundation.
Bei Windenergieanlagen ist das Fundament sowie dessen Dimensionierung von sehr großer Bedeutung, da derartige Windenergieanlagen sehr schwer sind und sehr großen Belastungen ausgesetzt sind.In the case of wind energy plants, the foundation and its dimensioning are of very great importance, since such wind energy plants are very heavy and are exposed to very large loads.
Bislang werden die Fundamente für Windenergieanlagen im Wesentlichen durch Ausheben einer Baugrube, Einbringen einer Sauberkeitsschicht, Aufstellen eines Fundamenteinbauteiles, Durchführen der benötigten Bewehrungsarbeiten und einem anschließenden Auffüllen der Baugrube mit Zement hergestellt, wobei der Zement mit Hilfe von Zementlastern zum benötigten Ort transportiert und in die Baugrube gegossen wird. Das Fundamenteinbauteil ist üblicherweise hohlzylindrisch ausgestaltet und wird in der Regel vorgefertigt und als Ganzes zu dem jeweiligen Montageort transportiert.So far, the foundations for wind turbines have essentially been produced by excavating a construction pit, introducing a cleanliness layer, installing a foundation installation part, performing the required reinforcement work and then filling the construction pit with cement, the cement being transported to the required location using cement trucks and into the construction pit is poured. The foundation installation part is usually designed as a hollow cylinder and is generally prefabricated and transported as a whole to the respective installation location.
Als Stand der Technik sei in dieser Sache u. a. verwiesen auf DE 40 37 438 C2, DE 33 36 655 A1 , DE 76 37 601 U, FR 1.015.719, US 4,714,225 A, EP 1 074 663 A1 , WO 94/26986 A1 und WO 00/46452 A1. Das Auffüllen der Baugrube mit dem benötigten Beton erweist sich insbesondere bei widrigen Witterungsbedingungen als nicht unproblematisch, während das Ausheben der Baugrube für das Fundament hingegen bei fast allen Witterungsbedingungen erfolgen kann. Die Qualität des fertigen ausgehärteten Betons hängt in hohem Maße von den Witterungsbedingungen ab.As prior art in this case, reference is made to DE 40 37 438 C2, DE 33 36 655 A1, DE 76 37 601 U, FR 1.015.719, US 4,714,225 A, EP 1 074 663 A1, WO 94/26986 A1 and WO 00/46452 A1. Filling the excavation pit with the required concrete proves to be not unproblematic, especially in adverse weather conditions, while excavation of the excavation pit for the foundation can take place in almost all weather conditions. The quality of the finished hardened concrete depends to a large extent on the weather conditions.
Es ist somit Aufgabe der Erfindung, ein Fundament für eine Windenergieanlage vorzusehen, dessen Qualität im Wesentlichen unabhängig von den vorherrschenden Witterungsbedingungen bei der Montage gewährleistet wird.It is therefore an object of the invention to provide a foundation for a wind energy installation, the quality of which is ensured essentially independently of the prevailing weather conditions during assembly.
Diese Aufgabe wird durch ein Fundament für eine Windenergieanlage gemäß Anspruch 1 gelöst.This object is achieved by a foundation for a wind turbine according to claim 1.
Der Erfindung liegt dabei der Gedanke zugrunde, die für die Statik des Fundaments der Windenergieanlage wichtigen Elemente vorab zu fertigen.The invention is based on the idea of producing the elements that are important for the statics of the foundation of the wind power installation in advance.
Dies ist insbesondere dahingehend vorteilhaft, da derartige Elemente in einer Fabrik bei genau definierten Temperaturen und Luftfeuchtigkeiten hergestellt werden können, was die Qualität des Endproduktes wesentlich steigert. Ferner kann die benötigte Qualitätskontrolle bereits in der Fabrik durchgeführt werden, so dass sie nicht mehr vor Ort bei den jeweiligen Montageörtlichkeiten durchgeführt werden muss. Des weiteren lassen sich die Elemente des Fundamentes in einer Fabrik effizienter und billiger herstellen, wenn sie in einer Großserie gefertigt werden.This is particularly advantageous in that elements of this type can be manufactured in a factory at precisely defined temperatures and air humidities, which significantly increases the quality of the end product. Furthermore, the required quality control can already be carried out in the factory so that it no longer has to be carried out on site at the respective assembly locations. Furthermore, the elements of the foundation can be manufactured more efficiently and cheaply in a factory if they are manufactured in large series.
Gemäß einer Ausgestaltung der Erfindung weist das Fundament ein Fundament-Basiselement 20 und zumindest zwei Fundament-Fußmodule 10 auf, wobei die Fußmodule an dem Basiselement 20 befestigt werden können und wobei das Basiselement 20 und die zumindest zwei Fußmodule 10 vorgefertigte Elemente darstellen. Dadurch, dass das Fundament nicht einstöckig, sondern aus mehreren Elementen besteht, können diese Elemente getrennt transportiert und vor Ort montiert werden, wobei die durch die Fertigung in einer Fabrik erreichte Qualität nicht beeinträchtigt wird. Da die Elemente des Fundamentes nicht unerhebliche Dimensionen aufweisen, ist ein Transport lediglich der einzelnen Elemente wesentlich einfacher.According to one embodiment of the invention, the foundation has a foundation base element 20 and at least two foundation foot modules 10, wherein the foot modules can be fastened to the base element 20 and wherein the base element 20 and the at least two foot modules 10 represent prefabricated elements. Because the foundation does not consist of one floor, but consists of several elements, these elements can be transported separately and assembled on site, whereby the quality achieved by manufacturing in a factory is not impaired. Since the Elements of the foundation have not insignificant dimensions, it is much easier to transport only the individual elements.
In einer weiteren Ausgestaltung der Erfindung ist das Fundament- Basiselement hohlzylindrisch ausgestaltet und die Fundament-Fußmodule 10 sind radial zur Symmetrieachse des Fundament-Basiselements ausgerichtet. Die radiale Ausrichtung der Fußmodule gewährleistet die benötigte Statik des Fundaments, da die Fußmodule dem Bedarf entsprechend um das Basiselement herum angebracht werden ; können. Ferner können die Fußmodule durch geeignete Befestigungsmittel im Hohlraum des Basiselementes befestigt werden.In a further embodiment of the invention, the foundation base element is designed as a hollow cylinder and the foundation foot modules 10 are aligned radially to the axis of symmetry of the foundation base element. The radial alignment of the foot modules ensures the required statics of the foundation, since the foot modules are attached around the base element as required ; can. Furthermore, the foot modules can be fastened in the cavity of the base element using suitable fastening means.
In einer besonders bevorzugten Ausgestaltung der Erfindung weist das Fußmodul jeweils eine Fußplatte und ein Fuß-Stützelement auf, welche jeweils radial zur Symmetrieachse des Basiselements angeordnet sind. Das Fuß-Stützelement steht dabei senkrecht zur Fußplatte während die Fußplatte im befestigten Zustand im Wesentlichen senkrecht zur Symmetrieachse des Basiselementes angeordnet ist. Durch die Fußplatte und das Stützelement werden die auf die Windenergieanlage wirkenden statischen Kräfte besser auf den Untergrund abgeleitet.In a particularly preferred embodiment of the invention, the foot module each has a foot plate and a foot support element, which are each arranged radially to the axis of symmetry of the base element. The foot support element is perpendicular to the footplate while the footplate is arranged substantially perpendicular to the axis of symmetry of the base element in the fastened state. The static forces acting on the wind turbine are better dissipated to the ground by the base plate and the support element.
In einer weiteren Ausgestaltung der Erfindung verkleinert sich die Höhe des Stützelementes radial nach außen hin. Diese Verjüngung des Stützelementes nach außen hin dient ebenfalls einer verbesserten Statik.In a further embodiment of the invention, the height of the support element decreases radially outward. This tapering of the support element towards the outside also serves to improve the statics.
In einer weiteren Ausgestaltung der Erfindung wird die Breite der Fußplatte radial nach außen hin größer, was ebenfalls einer verbesserten Statik dient.In a further embodiment of the invention, the width of the base plate increases radially outwards, which also serves to improve the statics.
In einer weiteren Ausgestaltung der Erfindung weisen sowohl die Stützelemente als auch die Fußplatten radial ausgerichtete Durchgangslöcher auf. Das Basiselement weist entsprechende Durchgangslöcher auf, so dass mittels dieser Durchgangslöcher die Fußmodule an dem Basiselement beispielsweise mit Hilfe von geeigneten Befestigungsmitteln befestigt werden können. In einer weiteren Ausgestaltung der Erfindung weisen die Fußplatten und/oder die Stützelemente weitere Durchgangslöcher auf, welche einen Durchmesser aufweisen, der es erlaubt, Zurrgurte während des Transportes durch sie hindurchzuführen, um die Fußmodule sicher zu befestigen.In a further embodiment of the invention, both the support elements and the foot plates have radially aligned through holes. The base element has corresponding through holes, so that the foot modules can be fastened to the base element, for example with the aid of suitable fastening means, by means of these through holes. In a further embodiment of the invention, the foot plates and / or the support elements have further through holes which have a diameter which allows lashing straps to be passed through them during transport in order to securely fasten the foot modules.
In einer besonders bevorzugten Ausgestaltung der Erfindung bestehen das Basiselement und die Fußmodule aus Stahlbeton.In a particularly preferred embodiment of the invention, the base element and the foot modules consist of reinforced concrete.
Die Erfindung wird nachfolgend anhand der Zeichnung näher beschrieben, wobei die Figuren zeigen:The invention is described in more detail below with reference to the drawing, the figures showing:
Fig. 1 eine perspektivische Ansicht eines Fundamentes gemäß einem ersten Ausführungsbeispiel;Figure 1 is a perspective view of a foundation according to a first embodiment.
Fig. 2a bis c verschiedene Ansichten des Fundamentes aus Fig. 1 ;2a to c show different views of the foundation from FIG. 1;
Fig. 4a bis e verschiedene Ansichten eines Fundamentfußes;4a to e show different views of a foundation foot;
Fig. 5a und b eine Drauf- und eine Seitenansicht von Fundamentfüßen gemäß Fig. 4a, welche zum Transport gestapelt sind; und5a and b are a top and a side view of foundation feet according to FIG. 4a, which are stacked for transport; and
Fig. 6 eine perspektivische Ansicht eines Fundamentes gemäß einem zweiten Ausführungsbeispiel;6 shows a perspective view of a foundation according to a second exemplary embodiment;
Fig. 7 eine perspektivische Ansicht eines Elementes desFig. 7 is a perspective view of an element of the
Fundamentes von Figur 6; undFoundations of Figure 6; and
Fig. 8 eine Draufsicht auf ein Element des Fundamentes von Figur 6.8 is a top view of an element of the foundation of FIG. 6.
In Fig. 1 ist eine perspektivische Ansicht des Fundamentes gemäß einem ersten Ausführungsbeispiel der Erfindung gezeigt. Das Fundament 1 besteht dabei im Wesentlichen aus einem hohlzylindrischen Basiselement 20 sowie einer Vielzahl von Fußmodulen 10, welche radial zur Längsachse bzw. Symmetrieachse des Basiselementes 20 gleichmäßig auf seinen Umfang verteilt ausgerichtet sind. Fig. 2a zeigt eine Draufsicht auf das Fundament 1 aus Fig. 1. Um den Umfang des hohlzylindrischen Basiselementes 20 herum sind eine Vielzahl von Löchern 21 angeordnet. Diese Löcher sollen dazu dienen, Befestigungselemente aufzunehmen, mittels derer ein Turm einer Windenergieanlage auf dem Fundament 1 befestigt werden kann. Die Fußmodule 10 bestehen aus einer Fußplatte 11 und einem Stützelement 12. Die verschiedenen Fußmodule 10 sind jeweils um 36° voneinander beabstandet, so dass 10 Fußelemente um das Basiselement 20 herum befestigt werden können. Selbstredend können sowohl mehr als auch weniger Fußmodule um das Basiselement 20 herum angeordnet werden, um die erforderlichen statischen Erfordernisse zu gewährleisten.1 shows a perspective view of the foundation according to a first exemplary embodiment of the invention. The foundation 1 essentially consists of a hollow cylindrical base element 20 and a multiplicity of foot modules 10, which are aligned evenly distributed over its circumference radially to the longitudinal axis or axis of symmetry of the base element 20. FIG. 2a shows a top view of the foundation 1 from FIG. 1. A plurality of holes 21 are arranged around the circumference of the hollow cylindrical base element 20. These holes are intended to accommodate fasteners by means of which a tower of a wind turbine can be fastened to the foundation 1. The foot modules 10 consist of a foot plate 11 and a support element 12. The various foot modules 10 are each spaced apart by 36 °, so that 10 foot elements can be attached around the base element 20. Of course, both more and fewer foot modules can be arranged around the base element 20 in order to ensure the required structural requirements.
Fig. 2b zeigt eine Seitenansicht des Fundamentes aus Fig. 1. Die Fußplatten 11 der Fußmodule 10 sind dabei in einer Ebene und senkrecht zur Symmetrieachse des hohlzylindrischen Basiselementes 20 angeordnet. Die Stützelemente 12 sind ferner senkrecht zur Fußplatte 11 sowie radial zur Symmetrieachse des Basiselementes 20 ausgerichtet, wobei das Stützelement 12 zentriert auf der Fußplatte 11 angeordnet ist. Das Basiselement 20 weist einen unteren Abschnitt 22 mit einer größeren Dicke als der obere Abschnitt auf, auf welchem die Löcher 21 vorgesehen sind.2b shows a side view of the foundation from FIG. 1. The base plates 11 of the base modules 10 are arranged in one plane and perpendicular to the axis of symmetry of the hollow cylindrical base element 20. The support elements 12 are also aligned perpendicular to the base plate 11 and radially to the axis of symmetry of the base element 20, the support element 12 being centered on the base plate 11. The base element 20 has a lower section 22 with a greater thickness than the upper section, on which the holes 21 are provided.
Fig. 2c zeigt eine Schnittansicht entlang des Schnittes A-A in Fig. 2b. Die Dicke der Fußplatte 11 ist dabei im Wesentlichen konstant, während die Höhe des Stützelementes 12 nach außen hin abnimmt. In dem Stützelement 12 ist jeweils ein radial ausgerichtetes Durchgangsloch 14 vorhanden. In der Fußplatte 11 sind zwei Durchgangslöcher 15 vorgesehen, welche ebenfalls radial zur Symmetrieachse ausgerichtet sind. Diese Durchgangslöcher 14 und 15 dienen dabei dazu, dass die Fußmodule 10 an dem Basiselement 20 beispielsweise mit Hilfe von Befestigungsmitteln angebracht werden können.Fig. 2c shows a sectional view along the section A-A in Fig. 2b. The thickness of the base plate 11 is essentially constant, while the height of the support element 12 decreases towards the outside. A radially aligned through hole 14 is present in the support element 12. Two through holes 15 are provided in the base plate 11, which are also aligned radially to the axis of symmetry. These through holes 14 and 15 serve to enable the foot modules 10 to be attached to the base element 20, for example with the aid of fastening means.
Fig. 4a bis e zeigen Ansichten des Fußmodules 10 aus Fig. 2a. Fig. 4a zeigt dabei eine perspektivische Ansicht des Fußmodules 10 mit der Fußplatte 1 1 und des senkrecht dazu angeordneten Stützelementes 12. Die Fußplatte weist dabei eine Innenseite 11a und eine Außenseite 1 1 b auf. Das Fußmodul 10 wird mit der Innenseite 11a der Fußplatte 11 an dem Basiselement 20 angebracht.4a to e show views of the foot module 10 from FIG. 2a. 4a shows a perspective view of the foot module 10 with the footplate 11 and the support element 12 arranged perpendicularly thereto. The footplate has an inside 11a and an outside 11b. The foot module 10 is attached to the base member 20 with the inside 11a of the foot plate 11.
Fig. 4b zeigt eine Draufsicht auf das Fußmodul 10 aus Fig. 4a. Die Breite 11c der Fußplatte 11 nimmt nach außen hin zu. Ferner sind sowohl die Innenseite 11a als auch die Außenseite 1 1 b der Fußplatte gekrümmt ausgestaltet. Dabei ist die Krümmung der Innenseite 11a der Fußplatte 11 an die Außenkrümmung des Basiselementes 20 angepasst, damit das Fußmodul 10 schlüssig an dem Basiselement 20 befestigt werden kann.FIG. 4b shows a top view of the foot module 10 from FIG. 4a. The width 11c of the foot plate 11 increases towards the outside. Furthermore, both the inside 11a and the outside 11b of the footplate are curved. The curvature of the inside 11a of the foot plate 11 is adapted to the outside curvature of the base element 20 so that the foot module 10 can be firmly attached to the base element 20.
Fig. 4c zeigt eine Seitenansicht des Fußmodules 10 von Fig. 4a, wobei diese Ansicht die Außenseite des Fußmodules 10 darstellt. Insbesondere sind dabei die Außenseite 11 b der Fußplatte 11 sowie die Außenseite 12b des Stützelementes 12 und die beiden Durchgangslöcher 15 in der Fußplatte 11 gezeigt.FIG. 4c shows a side view of the foot module 10 from FIG. 4a, this view representing the outside of the foot module 10. In particular, the outside 11 b of the foot plate 11 and the outside 12 b of the support element 12 and the two through holes 15 in the foot plate 11 are shown.
Fig. 4d zeigt eine Seitenansicht des Fußmodules 10 aus Fig. 4a. Die Höhe 12c des Stützelementes 12 nimmt dabei von der Innenseite 12a des Stützelementes 12 zu der Außenseite 12b hin ab. Ferner sind die Durchgangslöcher 14 in dem Stützelement 12 und die Durchgangslöcher 15 in der Fußplatte 11 gezeigt.FIG. 4d shows a side view of the foot module 10 from FIG. 4a. The height 12c of the support element 12 decreases from the inside 12a of the support element 12 to the outside 12b. The through holes 14 in the support element 12 and the through holes 15 in the base plate 11 are also shown.
Fig. 4e zeigt die dem Basiselement 20 zugewandte Seite des Fußmodules 10. Auch hier sind die Durchgangslöcher 14 in dem Stützelement 12 sowie die Durchgangslöcher 15 in der Fußplatte 11 gezeigt.4e shows the side of the foot module 10 facing the base element 20. The through holes 14 in the support element 12 and the through holes 15 in the foot plate 11 are also shown here.
Aufgrund der Größe der Fußmodule 10, welche über 5m betragen können, stellt der Transport derartiger Fußmodule ein weiteres zu lösendes Problem dar. In Fig. 5a und 5b wird eine Transportanordnung einer Vielzahl von Fußmodulen 10 gezeigt. Dabei werden die verschiedenen Fußmodule aufeinander gestapelt und zwar derart dass die Stützelemente 12 von zwei Fußmodulen 10 sich gegenüberstehen. Beispielsweise werden so 4 Fußmodule 10 auf einer Palette 100 befestigt. Aufgrund der zentrierten Anordnung der Stützelemente 12 werden die Fußmodule 10 jeweils versetzt zueinander aufgestapelt. Um den Transport derartiger Fußmodule sicher zu gestalten, können die Fußmodule 10 optional mit weiteren Durchgangslöchern vorgesehen werden. Diese Durchgangslöcher sollten dabei derart ausgestaltet sein, dass handelsübliche Zurrgurte durch sie hindurchgeführt werden können, damit die Fußmodule 10 sicher befestigt werden können. Das Vorsehen derartiger Durchgangslöcher stellt bei der Herstellung der Fußmodule 10 kein größeres Problem dar, da die Löcher problemlos in der Fabrik gebohrt oder entsprechende Gussformen vorgesehen werden können. Die Statik der Fußmodule 10 wird durch derartige Durchgangslöcher nicht beeinträchtigt.Due to the size of the foot modules 10, which can be more than 5 m, the transport of such foot modules represents a further problem to be solved. A transport arrangement of a plurality of foot modules 10 is shown in FIGS. 5a and 5b. The various foot modules are stacked on top of one another in such a way that the support elements 12 of two foot modules 10 face each other. For example, 4 foot modules 10 are attached to a pallet 100 in this way. Due to the centered arrangement of the support elements 12, the foot modules 10 are stacked offset from one another. In order to make the transport of such foot modules safe, the foot modules 10 can optionally be provided with further through holes. These through holes should be designed in such a way that standard lashing straps can be passed through them so that the foot modules 10 can be securely attached. The provision of such through holes is not a major problem in the manufacture of the foot modules 10, since the holes can be drilled without problems in the factory or corresponding molds can be provided. The statics of the foot modules 10 are not impaired by such through holes.
Optional können Ausrichtelemente unterhalb einiger der Fußplatten 11 oder zwischen den Fußmodulen 10 und dem Basiselement 20 vorgesehen werden, um eine genaue horizontale Ausrichtung des Fundaments zu gewährleisten.Optionally, alignment elements can be provided below some of the foot plates 11 or between the foot modules 10 and the base element 20 in order to ensure a precise horizontal alignment of the foundation.
Der Transport der Basiselemente 20 des Fundamentes 1 einer Windenergieanlage ist bereits hinlänglich bekannt und ist nicht Gegenstand der vorliegenden Anmeldung.The transport of the base elements 20 of the foundation 1 of a wind turbine is already well known and is not the subject of the present application.
Durch die modulare Bauweise des Fundamentes einer Windenergieanlage gemäß dem Ausführungsbeispiel der Erfindung ist es möglich, sowohl das Basiselement 20 als auch die Fußmodule 10 vorab in einer Fabrik zu fertigen und dann an den Montageort zu transportieren. Diese Vorabfertigung in einer Fabrik gewährleistet eine gleichbleibende Qualität der Fundamente für die Windenergieanlagen. Ferner kann das Fundament einer Windenergieanlage bei fast allen Witterungsbedingungen gelegt werden. Dazu wird, wie aus dem Stand der Technik, bekannt zunächst eine Baugrube gegraben und gegebenenfalls eine Sauberkeitsschicht aufgebracht. Anschließend wird das Basiselement 20 aufgestellt und die Fußmodule 10 mittels geeigneter Befestigungsmittel an dem Basiselement 20 befestigt. Nachfolgend kann eine Bewehrung des Fundaments erfolgen, wobei anschließend die Baugrube mit Beton aufgefüllt werden kann. Hierbei ist die Qualität dieses Betons sekundär, da die statisch wichtigen Elemente des Fundamentes, nämlich das Basiselement und die Fußmodule, vorab gefertigt worden sind. Fig. 6 zeigt eine perspektivische Ansicht eines vollständigen Fundamentes gemäß einem zweiten Ausführungsbeispiel. Im Gegensatz zum Fundament gemäß dem ersten Ausführungsbeispiel weist das Fundament gemäß dem zweiten Ausführungsbeispiel kein hohlzylindrisches Basiselement auf, um das herum eine Vielzahl von Fußmodulen angeordnet sind. Vielmehr weist jedes Fußmodul einen Segmentabschnitt des Basiselementes auf. Mit anderen Worten, das hohlzylindrische Basiselement wird in eine Vielzahl von Abschnitten aufgeteilt, welche jeweils Bestandteil des Fußmodules 10 sind. Ferner weist jedes Fußmodul 10 einen Flanschabschnitt 60 auf, welcher wiederum mit den passenden Löchern versehen ist, um die entsprechenden Turmsegmente einer Windenergieanlage daran zu befestigen.Due to the modular construction of the foundation of a wind power plant according to the exemplary embodiment of the invention, it is possible to manufacture both the base element 20 and the foot modules 10 in advance in a factory and then to transport them to the installation site. This pre-processing in a factory guarantees a constant quality of the foundations for the wind energy plants. Furthermore, the foundation of a wind turbine can be laid in almost all weather conditions. For this purpose, as is known from the prior art, an excavation pit is first dug and, if appropriate, a cleanliness layer is applied. The base element 20 is then set up and the foot modules 10 are fastened to the base element 20 by means of suitable fastening means. Subsequently, the foundation can be reinforced, after which the construction pit can be filled with concrete. The quality of this concrete is secondary here, since the statically important elements of the foundation, namely the base element and the foot modules, have been manufactured in advance. 6 shows a perspective view of a complete foundation according to a second exemplary embodiment. In contrast to the foundation according to the first embodiment, the foundation according to the second embodiment does not have a hollow cylindrical base element around which a multiplicity of foot modules are arranged. Rather, each foot module has a segment section of the base element. In other words, the hollow cylindrical base element is divided into a plurality of sections, which are each part of the foot module 10. Furthermore, each foot module 10 has a flange section 60, which in turn is provided with the appropriate holes in order to fasten the corresponding tower segments of a wind power plant to it.
Fig. 7 zeigt eine perspektivische Zeichnung eines einzelnen Fußmodules 10 gemäß dem zweiten Ausführungsbeispiel. Das Fußmodul weist wiederum eine Fußplatte 11 und ein Stützelement 12 sowie ein Basiselementabschnitt 20a auf. Am Basiselement 20a sind Löcher 15 vorgesehen, welche dazu dienen sollen, die Fußmodule miteinander zu verbinden. Diese Verbindung zwischen den Fußmodulen 10 kann mittels entsprechender Schraubverbindungen oder auch anderer Verbindungen erfolgen. Am Basiselementabschnitt ist ebenfalls ein Flanschabschnitt 60 zur Befestigung von entsprechenden Turmsegmenten vorgesehen.7 shows a perspective drawing of an individual foot module 10 according to the second exemplary embodiment. The foot module in turn has a foot plate 11 and a support element 12 and a base element section 20a. Holes 15 are provided on the base element 20a, which holes are intended to connect the foot modules to one another. This connection between the foot modules 10 can be made by means of appropriate screw connections or other connections. A flange section 60 for fastening corresponding tower segments is likewise provided on the base element section.
Fig. 8 zeigt eine Draufsicht eines Fußmodules 10 von Fig. 6 oder 7. Die Breite der Fußmodule 10 bzw. der Fußplatten 11 hängt dabei im Wesentlichen von der Anzahl der vorgesehenen Fußmodule 10 ab. Durch eine Montage der vorgesehenen Anzahl von Fußmodulen ergibt sich somit ein vollständiges Kreisfundament mit bereits integrierter Fundamentsektion für eine Windenergieanlage. Zur Verbesserung der Verbindungen zwischen den verschiedenen Fußmodulen 10 können laterale Platten an den Basiselementabschnitten 20a angeordnet sein. In Fig. 8 sind u. a. die Schrauben zum Verbinden der jeweiligen Fußmodule 10 sowie die Verankerung des Basiselementes der Fundamentsektion in dem Fußelement (linker Teil der Fig. 8) dargestellt. Wie bei dem Fundament gemäß dem ersten Ausführungsbeispiel kann das Fundament gemäß dem zweiten Ausführungsbeispiel vorab gefertigt werden, so dass das Fundament bzw. die Fußmodule am Montageort zusammengefügt werden muss/müssen.FIG. 8 shows a top view of a foot module 10 from FIG. 6 or 7. The width of the foot modules 10 or of the foot plates 11 essentially depends on the number of foot modules 10 provided. By assembling the intended number of foot modules, a complete circular foundation with an already integrated foundation section for a wind energy installation is obtained. In order to improve the connections between the different foot modules 10, lateral plates can be arranged on the base element sections 20a. 8 shows, among other things, the screws for connecting the respective foot modules 10 and the anchoring of the base element of the foundation section in the foot element (left part of FIG. 8). As with the foundation according to the first exemplary embodiment, the foundation according to the second exemplary embodiment can be manufactured in advance, so that the foundation or the foot modules must / must be assembled at the installation site.
Da üblicherweise ein Lastkran zur Montage der Windenergieanlage bereits vor Ort ist, kann dieser dazu verwendet werden, um die Elemente des Fertigfundamentes in die Baugrube zu heben.Since a load crane for assembling the wind turbine is usually already on site, it can be used to lift the elements of the finished foundation into the construction pit.
Obwohl das erfindungsgemäße Fertigfundament hier für den Einsatz an Land beschrieben worden ist, kann es natürlich ebenfalls bei Fundamenten für Offshore-Windenergieanlagen eingesetzt werden.Although the finished foundation according to the invention has been described here for use on land, it can of course also be used for foundations for offshore wind turbines.
Soweit in der vorliegenden Anmeldung Windenergieanlagen erwähnt sind, so ist hiermit insbesondere gemeint, dass es sich um Windenergieanlagen handelt, die eine bestimmte Größenordnung annehmen, d. h. z. B. eine Nennleistung im Bereich von etwa 300 kW bis 2 MW , bevorzugt 600 kW aufweisen sowie dabei eine Nabenhöhe (also Turmhöhe) von etwa 45 bis 85 m aufweisen. Die vorliegende Anmeldung ist besonders gut geeignet für den Bau einer Windenergieanlage der Firma Enercon vom Typ E40 oder E66 mit den bekannten Turm- bzw. Nabenhöhen und Leistungsdaten. Insofar as wind turbines are mentioned in the present application, this means in particular that they are wind turbines that assume a certain size, ie. H. z. B. have a nominal power in the range of about 300 kW to 2 MW, preferably 600 kW and have a hub height (ie tower height) of about 45 to 85 m. The present application is particularly well suited for the construction of an Enercon type E40 or E66 wind turbine with the known tower or hub heights and performance data.

Claims

Ansprüche Expectations
1. Fundament (1 ) für eine Windenergieanlage, wobei die wesentlichen, tragenden und seitlich stabilisierenden Elemente (10,1. Foundation (1) for a wind turbine, the essential, load-bearing and laterally stabilizing elements (10,
20) des Fundamentes (1 ) vorgefertigt sind.20) of the foundation (1) are prefabricated.
2. Fundament nach Anspruch 1 , mit2. Foundation according to claim 1, with
- einem Fundament-Basiselement (20) und - zumindest zwei Fundament-Fußmodulen (10), wobei die Fundament-Fußmodule (10) an dem Fundament- Basiselement (20) befestbar ausgestaltet sind, und wobei das Fundament-Basiselement (20) und die zumindest zwei Fundament-Fußmodule (10) vorgefertigte Elemente darstellen.- A foundation base element (20) and - at least two foundation foot modules (10), wherein the foundation foot modules (10) are designed to be fastened to the foundation base element (20), and wherein the foundation base element (20) and the represent at least two foundation foot modules (10) prefabricated elements.
3. Fundament nach Anspruch 1 , mit3. Foundation according to claim 1, with
- zumindest zwei Fundament-Fußmodulen (10), wobei die Fundament-Fußmodule (10) miteinander befestigbar ausgestaltet sind und vorgefertigte Elemente darstellen.- At least two foundation foot modules (10), wherein the foundation foot modules (10) are designed to be fastened together and represent prefabricated elements.
4. Fundament nach Anspruch 1 oder 2, wobei das Fundament-Basiselement (20) hohl-zylinderförmig ausgestaltet ist und die Fundament-Fußmodule (10) radial zur Symmetrieachse des Fundament-Basiselementes (20) ausgerichtet sind.4. Foundation according to claim 1 or 2, wherein the foundation base element (20) is hollow-cylindrical and the foundation foot modules (10) are aligned radially to the axis of symmetry of the foundation base element (20).
5. Fundament nach Anspruch 4, wobei die Fundament-Fußmodule (10) jeweils eine Fußplatte (11 ) und ein Fuß- Stützelement (12) aufweisen, welche jeweils radial zur Symmetrieachse des Fundament-Basiselementes (20) angeordnet sind, wobei das Fuß-Stützelement (12) senkrecht zur Fußplatte (11 ) und die Fußplatten (11 ) im befestigten Zustand im Wesentlichen senkrecht zur Symmetrieachse des Fundament-Basiselementes (10) angeordnet sind.5. Foundation according to claim 4, wherein the foundation foot modules (10) each have a foot plate (11) and a foot support element (12), which are each arranged radially to the axis of symmetry of the foundation base element (20), wherein the foot support element (12) is arranged perpendicular to the foot plate (11) and the foot plates (11) are substantially perpendicular to the axis of symmetry of the foundation base element (10) when fastened.
6. Fundament nach Anspruch 5, wobei sich die Höhe (12a) der Fuß-Stützelemente (12) radial nach außen hin verkleinert.6. Foundation according to claim 5, wherein the height (12a) of the foot support elements (12) decreases radially outwards.
7. Fundament nach Anspruch 5 oder 6, wobei sich die Breite (11c) der Fußplatte (11 ) radial nach außen hin vergrößert.7. Foundation according to claim 5 or 6, wherein the width (11c) of the foot plate (11) increases radially outwards.
8. Fundament nach Anspruch 5, 6, oder 7, wobei die Fußmodule (10) radial ausgerichtete Durchgangslöcher (14, 15) zur Aufnahme von Befestigungsmitteln aufweisen, und wobei das Fuß-Basiselement (10) auf die Durchgangslöcher (14, 15) der8. Foundation according to claim 5, 6, or 7, wherein the foot modules (10) have radially aligned through holes (14, 15) for receiving fastening means, and wherein the foot base element (10) on the through holes (14, 15)
Fußmodule (10) abgestimmte Durchgangslöcher aufweist.Foot modules (10) has matched through holes.
9. Fundament nach einem der vorherigen Ansprüche, wobei die Fußplatten (11 ) und/oder die Fuß-Stützelemente (12) weitere Durchgangslöcher aufweisen, welche dazu geeignet sind, während eines Transportes Zurrgurte aufzunehmen.9. Foundation according to one of the preceding claims, wherein the foot plates (11) and / or the foot support elements (12) have further through holes which are suitable for receiving lashing straps during transport.
10. Fundament nach einem der vorherigen Ansprüche, wobei das Fundament-Basiselement (20) und die zumindest zwei Fundament- Fußmoduie (10) aus Stahlbeton vorab gefertigt werden.10. Foundation according to one of the preceding claims, wherein the foundation base element (20) and the at least two foundation foot modules (10) are made of reinforced concrete in advance.
11. Fundament nach Anspruch 3, wobei das Fundament-Fußmodul (10) ein Basiselementabschnitt (20a) aufweist, welches an einem Ende (11a) der Fußplatte (11 ) senkrecht dazu angeordnet ist.11. Foundation according to claim 3, wherein the foundation foot module (10) has a base element section (20a) which is arranged at one end (11a) of the foot plate (11) perpendicularly thereto.
12. Windenergieanlage mit einem Fundament nach einem der Ansprüche 1 bis 9. 12. Wind turbine with a foundation according to one of claims 1 to 9.
EP04731827A 2003-05-13 2004-05-08 Foundation for a wind energy plant Withdrawn EP1631722A2 (en)

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