CONSTRUCTION OF A WIND ENERGY PLANT

- REPOWER SYSTEMS AG

A wind power plant with a tubular tower, wherein the tubular tower will be or is arranged above a foundation body, preferably arranged in the ground, and the tubular tower has a tower foot flange, which is or will be connected with the foundation body by means of a flange connection, on its bottom side. The wind power plant is characterized in that at least one injection hose is or will be arranged in the area of the top side of the foundation body facing the tower foot flange, in particular on the top side of the foundation body, or at least one injection hose is or will be arranged on the top side between the tower foot flange and the top side of the foundation body facing the tower foot flange or a connection part is provided in the foundation Body.

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Description
BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention relates to a wind power plant with a tubular tower, wherein the tubular tower will be or is arranged above a foundation body, preferably arranged in the ground, and the tubular tower preferably has a tower foot flange, which is or will be connected with the foundation body by means of a flange connection, on its bottom side. Moreover, this invention relates to a method for the erection of a tower of a wind power plant as well as a use of an injection hose for the erection of a tower of a wind power plant.

2. Description of Related Art

Wind power plants of the patent applicant are known under the description 5M, MM92, MM82, MM70 and MD77.

In order to erect a wind power plant, it is known to arrange the tower of the wind power plant on a foundation made of concrete on a subsurface, wherein the foundation is designed with connection elements to erect and fasten the foot flange of the tower on it. In particular, the foundation of the tower is determined by the size of the unit and by the prevailing ground conditions. The fastening of the towers of wind power plants generally takes place via an anchor ring cast in concrete, on which connection elements, in particular stay anchors, are arranged. The tower flange is hereby arranged on the connection elements projecting out of the concrete foundation.

Moreover, a method for the erection of a tower of a wind power plant is known from DE-A-10 2004 017 008, wherein a ring-shaped casing is created on a foundation and filled with a low-viscosity casting compound. After hardening of the casting compound and removal of the casing, a leveling ring is placed on the surface of the hardened casting compound and a tower segment is placed on the ring and connected with it. The leveling rings used must be manufactured precisely and individually and are very complex to produce based on their size, which results in particularly long delivery periods of several months.

Based on this state of the art, the object of the present invention is to improve the erection of a tower of a wind power plant, wherein the effort at the installation location of the tower is kept as low as possible.

BRIEF SUMMARY OF THE INVENTION

The object is solved through a wind power plant with a tubular tower, wherein the tubular tower will be or is arranged above a foundation body, preferably arranged in the ground, and the tubular tower has a tower foot flange on its bottom side, which is or will be connected with the foundation body by means of a flange connection, wherein the wind power plant is thereby further characterized in that a) at least one injection hose is or will be arranged in the area of the top side of the foundation body facing the tower foot flange, in particular on the top side of the foundation body, or b) at least one injection hose is or will be arranged on the top side between the tower foot flange and the top side of the foundation body facing the tower foot flange, or c) a connection component is or will be arranged in the foundation body, on which top side projecting out of the foundation body, the tower foot flange is or will be arranged, and wherein at least one injection hose is provided at a predetermined distance from the bottom part in the area of the bottom part of the connection component arranged in the foundation body.

In an alternative solution, a wind power plant is proposed, wherein the wind power plant is designed with a tower or respectively tubular tower, wherein the top part of the tubular tower will be or is arranged above a foundation body, preferably arranged in the ground, which is further characterized in that at least one injection hose is provided in the area of the bottom part of the tower or respectively tubular tower arranged in the foundation body at a predetermined distance from the bottom part.

This embodiment has the advantage that the high-priced tower foot flange is not needed and the bottom part of the tower is poured directly in the foundation body with concrete. The top part of the tower hereby generally has several sections and can be designed as a (steel) tubular tower, concrete tower or as a truss tower.

The invention is based on the idea that one or more injection hoses or respectively compression hoses are provided in the area of the tower foundation of a wind power plant, wherein the injection hoses are laid in concrete joints during the erection of a tower and/or are set in concrete or inserted into the sensitive areas in order to seal in a simple manner hollow spaces, which could have been created through shrink and creep processes in the concrete. A waterproof, gas-proof or respectively force-fit joint in the foundation body and on the top side of the foundation body, in particular below a tower foot flange, is hereby formed.

In particular, an injection hose is used in areas in which a material change from concrete to steel or a transition from concrete to concrete, wherein the concretes have different qualities, takes place. For example, injection hoses or, respectively, compression hoses are installed in the connection joint between the steel tower and the foundation.

If the tower of the wind power plant to be erected has a tower foot flange on the bottom side, which is placed on a component arranged in a foundation or respectively a connection part with an L-shaped flange on its top side, then the foundation built-in part or respectively the connection body with its bottom part is located in the foundation body, wherein the connection part or the foundation built-in part is designed with a (reverse) T flange, through which tensile and pressure loads are absorbed from the tower.

In another embodiment, the connection component can also be formed as an anchor basket. Decisive is the fact that an injection hose or respectively a compression hose is taken into consideration or respectively arranged during installation at the transitions between the connection part and the foundation body and between the foundation body and the tower foot flange at the power-transmitting spots with joints so that a corresponding, preferably hardening, medium is introduced into the injection hoses after production or respectively erection of the wind power plant.

Moreover, it is advantageous in one embodiment of the wind power plant if the at least one injection hose is arranged or fastened on the bottom part of the connection part or on the bottom part of the tower or respectively tubular tower so that hollow spaces created at these spots are compressed or respectively filled up with an injection mass in a force-fit manner. It is hereby ensured that the introduction of water during the operation of the wind power plant is permanently prevented so that hollow spaces in the area of the foundation of a wind power plant are avoided and the service life of the wind power plant is, thus, increased.

The installation of injection hoses or respectively compression hoses e.g. before a concreting operation enables a simple compression of hollow spaces after creation of the foundation or after detection of, in particular minimal, relative movements between a foundation built-in part and the concrete base. Through the use of injection hoses, a force-fit connection is achieved between a connection part or respectively a foundation built-in part or an anchor basket and the concrete of the foundation body with relatively little effort. Finally, already penetrated water or liquid can get squeezed (back) out of the hollow spaces through the introduction of an injection mass into the hollow spaces through the injection hose.

Furthermore, it is provided in a preferred embodiment that one or more injection hoses are provided on a lower flange ring of the bottom part of the connection component in the foundation body so that through the introduction of an injection mass into the injection hoses positioned directly on or below the flange, preferably in contact with the flange, joints in the power-transmitting area between the flange of the connection component and the foundation body are filled up in a targeted manner.

If a bed is first excavated for the foundation body for the erection and then a mainly even and horizontally running bedding plate is created as the lower layer of the foundation body, then it is provided in a preferred embodiment that the injection hose or injection hoses are arranged or fastened on a lower section or a lower layer of the foundation body, in particular a bedding plate. The foundation body is then cast in the known manner with concrete.

The foundation can also be cast in several sections so that the lower section of the foundation is cast first, then the connection component is fitted and the injection hoses are arranged and then the upper section is cast. In this case, the injection hoses are preferably arranged on the lower foundation section.

Furthermore, it is provided in a preferred embodiment that at least one end, preferably both ends, of the injection hose or the injection hoses are designed to project out of the foundation body, preferably inside the tower, wherein in particular a storage bag is provided for receiving the end(s) of the injection hose or respectively hoses. It is achieved through this measure that the ends of the injection hoses or respectively of the compression hoses can also be filled after formation or respectively erection of the wind power plant with an injection medium, wherein in particular, after a predetermined operational period of the wind power plant a sealing injection means is pressed in via the then freely accessible ends of the injection hose(s). A sealing injection medium, such as synthetic resin or cement slurry or the like, is thus pressed in if needed, for example in the case of the formation of cracks, to seal hollow spaces or formed cracks.

The connection component, which will be or is arranged with its bottom part in the foundation body, is preferably formed as a foundation built-in part or as an anchor basket.

Moreover, it is also provided in a preferred embodiment that an intermediate connection body is provided between the bottom side of the tower foot flange and the top side of the foundation body, wherein the at least one injection hose is arranged below or in the intermediate connection body, wherein in particular the intermediate connection body is in force-fit contact with the tower foot flange. The intermediate connection body is hereby arranged on the top side of the foundation body and below the tower foot flange, wherein the intermediate connection body can have a hollow space.

In particular, the intermediate connection body is made of a concrete with a higher quality than the material or respectively the concrete of the foundation body. The intermediate connection body hereby has a contact surface to the tower or respectively the tower foot flange and to a lower contact surface to the foundation body. Furthermore, it is provided in an embodiment that the intermediate connection body is formed as a load distribution plate or as a power transmission body, preferably configured with a receiving space for the injection hose.

Furthermore, the object is solved through a method for the erection of a tower of a wind power plant, wherein the following process steps are executed:

    • Formation of a foundation body, preferably on or in the ground,
    • Arrangement of a tower or a tower part on the top side of the foundation body, wherein at least one injection hose is or will be arranged in an intermediate connection body to be configured or configured between the bottom side of a tower foot flange of the tower or of the tower part and the top side of the foundation body,
    • wherein an injection mass is introduced to the injection hose or injection hoses before or during or after arrangement of the tower or of the tower part on the foundation body.

In one alternative, the following process steps are executed to erect a tower in order to further solve the set object:

    • Formation of a foundation body, preferably on or in the ground, wherein a connection component is or will be arranged in the foundation body and its top part projects out of the foundation body,
    • Arrangement of at least one injection hose in the area of the bottom part of the connection component arranged in the foundation body,
    • Arrangement of a tower or a tower part on the top side of the connection component,
    • wherein an injection mass is introduced to the injection hose or injection hoses before or during or after arrangement of the tower or of the tower part on the connection component.

In accordance with a third solution of the object, the following process steps are executed in the method for the erection of a tower of a wind power plant:

    • Arrangement of a top part of a tower above a foundation body to be formed in particular on or in the ground, wherein at least one injection hose is or will be arranged in the area of the bottom part of the tubular tower arranged in the foundation body at a predetermined distance from the bottom part,
    • Formation of a foundation body, wherein an injection mass is introduced to the injection hose(s) before or during or after arrangement of the top part of the tower above the foundation body.

After casting of a foundation mass, in particular concrete, for the formation of a foundation body, an injection filling medium, e.g. resin or a cement mass or the like, is preferably introduced to the injection hose in order to seal the corresponding joints between the foundation components.

Furthermore, it is provided in one embodiment of the method that the injection hose or injection hoses will be or are filled with a liquid, preferably water or a medium, before the casting of the foundation mass, in particular concrete.

Moreover, the injection hose(s) will be or are preferably casted with a casting compound after arrangement of the injection hose or injection hoses on the top side of the foundation body, wherein in particular the injection hose(s) will be or are arranged below a load distribution plate on the hollow space of an intermediate connection body between the top side of the foundation body and the bottom side of the tower foot flange.

The method is also characterized in that the casting of the casting compound takes place after casting of the concrete and after alignment of the connection component and/or after alignment of the intermediate connection body.

Moreover, the object is solved through the use of an injection hose in the erection of a tower of a wind power plant as described above, wherein in particular the process steps described above are also executed. We expressly refer to the above explanations in order to avoid repetitions.

The injection hoses are preferably fastened to a power transmission element or power transmission component of the foundation or to the ground or to a thin concrete plate, on which the foundation body is then formed. The injection hoses are thereby preferably arranged such that they, for example, follow the circular shape of a flange or a load distribution plate, wherein the injection hoses are arranged in a preferred embodiment at a predetermined distance from the power transmission component. The distance can hereby be a few hose diameters, preferably less than one hose diameter, in particular less than one half of a hose diameter. In one embodiment, the injection hose is in direct contact with the corresponding power transmission component. It is thereby beneficial if the injection hose or the injection hoses are arranged in the power flow of the corresponding power transmission components.

The upwards buoying of the injection hose and cross-sectional constrictions are avoided by filling the injection hose with a liquid, e.g. water, before casting the concrete.

If several injection hoses are arranged parallel to each other, then the installation of the injection hoses makes it possible that, after use of an injection hose, additional injection hoses are compressed as reserves for a later point in time, wherein the reserve hoses will be or are temporarily filled with a replaceable liquid, e.g. water, during the first compression process in order to protect them. The compression of the injection hoses takes place in particular with resin, flow mortar or other suitable injection media, which are able to transmit power or to fill hollow spaces in a water-tight manner. The diameter of injection hoses is typically between 2 mm to 100 mm, in particular 5 mm to 50 mm and preferably between 8 mm to 35 mm.

The used injection hoses, or respectively compression hoses, can thereby be of the following type:

    • Round, perforated PVC inner tubes with double woven jacket so that the penetration of cement paste into the inside of the hose during concreting is prevented by the fine fabric of the double woven jacket (filter function).
    • Round, perforated or slotted PVC inner tubes with slotted foam rubber jacket, wherein the slots of the jacket are arranged offset for perforation of the PVC inner tube. The penetration of cement paste during concreting is prevented by a type of valve system.
    • Perforated PVC inner tubes with neoprene strips. The outlet openings of the PVC inner tube are hereby covered with neoprene strips, wherein the strips are immobilized in their position by a fine-meshed outer net.

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    • Round, perforated PVC inner tubes with slotted film jacket. The slots in the film jacket are thereby arranged offset from the outlet openings of the inner tube. The penetration of cement paste inside the tube is prevented by valve systems.
    • Semi-round or square systems, wherein semi-round or square plastic or rubber profiles are provided with injection channels with outlet openings, which are covered with foam.
    • Slotted flat hoses made of PVC without additional jacket. The hose slots remain closed under the concreting pressure and only open at a predetermined injection pressure in order to prevent the penetration of cement paste during concreting (valve function).
    • Flat hoses, which are often provided with several injection channels. Each injection channel can thereby be used separately for an injection process (multiple injection).

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is described below, without restricting the general idea of the invention, based on exemplary embodiments in reference to the drawings, whereby reference is made expressly to the drawings with regard to the disclosure of all details according to the invention that are not explained in greater detail in the text. The drawings show in:

FIGS. 1a, 1b different views of a foundation of a wind power plant;

FIG. 2 a cross-sectional view through a section of a foundation of a wind power plant;

FIGS. 3a, 3b, 3c different views of a cross-section of a flange of a foundation built-in part;

FIGS. 4a, 4b an overview representation (FIG. 4a) and a detailed view (FIG. 4b) of cross-sectional views through an anchor basket arranged in a foundation, and

FIG. 5 another arrangement according to the invention of injection hoses on a foundation of a wind power plant.

 DETAILED DESCRIPTION OF THE INVENTION

In the following figures, the same or similar types of elements or respectively corresponding parts are provided with the same reference numbers in order to prevent the item from needing to be reintroduced.

FIG. 1a shows a cross-section of the lower part of a schematically drawn wind power plant W, wherein the wind power plant W is erected on a foundation body 10 erected or respectively designed in the ground 11. The foundation body 10 is made of concrete and the lower area has a broadened foot, which is surrounded by the ground 11.

In the middle part of the foundation body 10, a circular base is designed in the center, into which a foundation built-in part 14 is concreted or respectively permanently arranged. The foundation built-in part 14 is arranged in the foundation body 10 in a ring-like manner and projects out of the foundation body 10. Above the top side 15 of the foundation body 10, the foundation built-in part 14 has a tower-side flange 16, on which a tower foot flange 17 of the tower 18 arranged on it, of the wind power plant W, is arranged.

The tower foot flange 17 and the flange 16 of the foundation built-in part 14 are connected via known screw connections.

FIG. 1b shows a view of the top of the foundation body 10, wherein it arises from FIG. 1b that the foundation body 10 is designed in a circular or ring-like manner. In other embodiments, the foundation body 10 can also be designed like a polygon, cross or star.

FIG. 2 shows a detailed view of a foundation built-in part 14, which is poured into the foundation body 10. On the bottom side of the foundation built-in part 14, which is poured in the foundation body 10, the foundation built-in part 14 has a pour-in flange 19. The pour-in flange 19 is hereby designed with a T-shaped cross-section, wherein the T shape is set or respectively turned on its head.

In the lower area of the pour-in flange 19, compression hoses 20 are arranged on both sides, both on the inside and on the outside of the foundation built-in part 14. The compression hoses 20 run along the bottom part of the foundation built-in part 14.

The compression hoses 20 can be or are mounted in the factory on-site, wherein the compression hoses 20 are attached to the foundation built-in part 14 by means of retaining grommets or other fastening means such as clamps or adhesive tape. In particular, the compression hoses 20 are arranged in a circular manner along the pour-in flange 19. They are hereby arranged such that, on one hand, the power-transmitting pour-in flange 19 is reliably compressed and, on the other hand, the compression hoses 20 themselves do not weaken the power-transmitting surface.

Several compression hoses 20, which are compressed after the curing of the concrete of the foundation body or compressed after a time lag, for example upon occurrence of cracks, with an injection mortar, e.g. resin or flow mortar, are arranged along the pour-in flange 19.

Injection media, which are suitable for transmitting power and/or filling up hollow spaces in a water-tight manner, are especially suitable for the compression.

In one embodiment, the hose ends of the compression hoses 20 for filling and venting the hoses are led out of the foundation body 10 mainly vertically in order to supply an injection medium to the compression hoses after curing of the concrete.

Moreover, the installation of several injection hoses enables a compression of the compression hoses after a certain sequence, wherein a compression is executed in particular when for example cracks or hollow spaces are identified or respectively occur in the foundation body, in particular in the area of the foundation built-in component 14.

During the compression of resins or cement paste as well as cement mortar, pressures of up to 80 bar are typically used. The diameter of the compression hoses is between 2 mm to 100 mm, in particular between 5 mm and 50 mm, preferably between 8 mm and 35 mm.

For the compression, a compression device, e.g. in the form of a conveyor pump, is installed on one end or the free ends of the compression hoses. One advantageous embodiment can also provide that several compression hoses are connected with each other through distributor pieces.

In particular, compression hoses 20 are arranged or respectively fastened on a power transmission element or on the ground or on a thing concrete plate (bedding). Besides an arrangement of the compression hoses 20 in the power flow of the power transmission element or respectively component, it is also possible within the framework of the invention to arrange the compression hoses outside the power flow.

In particular, the compression hoses 20 are filled with a replaceable liquid, e.g. water or the like, before the pouring of the concrete of the foundation body 10, in order to prevent the upwards buoying of the hose or respectively the compression hoses or the cross-sectional constrictions.

FIGS. 3a through 3c show different options for the arrangement of compression hoses 20 in the area of the T-shaped cross beam of the lower pour-in flange 19 of the foundation built-in part 14. FIG. 3a shows a cross-section, in which the compression hoses 20 are arranged symmetrically on both sides of the cross beam of the inverted “T.” FIG. 3b shows an embodiment of the arrangement of compression hoses 20, wherein a compression hose 20 is arranged in the center below the cross beam, while two compression hoses 20 are each fastened symmetrically on the top side of the pour-in flange 19.

In the exemplary embodiment shown in FIG. 3c, two compression hoses 20 are each symmetrically arranged both on the top side as well as on the bottom side of the cross beam of the “T” such that the horizontal flange surfaces are evenly covered.

It is possible within the scope of the invention to design compression hoses 20 on the poured-in flange 19 in the area of the poured-in part of the poured-in flange in the foundation body 10 in a predetermined manner and depending on the requirements profile.

In the exemplary embodiment shown in FIG. 3a, the compression hoses 20 are positioned on the front side of the flange 19 so that the compression hoses are arranged outside the power-transmitting area on the flange 19. In the exemplary embodiments in accordance with FIGS. 3b and 3c, the compression hoses 20 are arranged directly in the power flow on or respectively under the flange, ideally arranged in contact with the flange.

FIG. 4a shows a cross-section through a foundation body 10, in which an anchor basket 21 is concreted. The anchor basket 21 has vertically arranged anchor rods 22, which end above the top side 15 of the foundation body 10. An enlarged partial view of the area of the top side 15 circled in FIG. 4a is shown in FIG. 4b.

On the top side 15 of the foundation body 10, the anchor rods 22 penetrate a circumferential concrete prefabricated part 23 as an intermediate body and the tower foot flange 17 of the tower 18 designed as a steel tubular tower. The anchor rods 23 are provided with tightened nuts 24 on the top side.

Instead of the concrete prefabricated part 23, a load-distribution sheet can also be provided as a load-distributing component. Compression hoses 20 are arranged in a circular manner below the concrete prefabricated part 23 in the area of the top side 15 in order to fill in the joint between the top side 15 and the concrete prefabricated part 23, as necessary.

The concrete body 10 can hereby be poured first and then the concrete prefabricated part 23 or the load-introduction plate can be positioned. In a preferred embodiment, the foundation body 10 can also be directly poured on the tower foot flange 17 or the concrete prefabricated part 23 or respectively load-distribution sheet, after having been aligned or justified e.g. on the anchor rods 22. In this embodiment, the compression hoses are then preferably poured directly in the surface of the foundation body 10 in order to directly fill potential hollow spaces occurring during concrete pouring directly under force application.

In one alternative, the compression hoses can also be arranged in the concrete prefabricated part 23.

Another exemplary embodiment for the arrangement of compression hoses 20 is shown in cross-section in FIG. 5. Anchor rods 22 hereby protrude from the foundation body 10, wherein the anchor rods 22 extend above the top side 15 through a cured casting compound 25 and a load-distribution plate 26 and the tower foot flange 17. The anchor rods 22 are provided with nuts 24 on the top side of the tower foot flange 17.

In accordance with the invention, the compression hoses 22 are arranged above the top side 15 in the casting compound 25, wherein the compression hoses 20 are arranged in the correspondingly designed casing during casting of the casting compound 25. After curing of the casting compound 25, the load-distribution plate 26 provided for load distribution is arranged on the casting compound 25.

In an alternative embodiment, the casting compound 25 can also be casted in a recess of the foundation body 10 so that the top side of the casting compound 25 lies in the area of the top side 15 of the foundation body 10.

LIST OF REFERENCE NUMBERS

    • 10 Foundation body
    • 11 Ground
    • 14 Foundation built-in part
    • 15 Top side
    • 16 Flange
    • 17 Tower foot flange
    • 18 Tower
    • 19 Pour-in flange
    • 20 Compression hoses
    • 21 Anchor basket
    • 22 Anchor rod
    • 23 Concrete prefabricated part
    • 24 Nut
    • 25 Casting compound
    • 26 Load-distribution plate
    • W Wind power plant

Claims

1. A wind power plant (W) comprising:

a tubular tower (18),
wherein the tubular tower (18) will be or is arranged above a foundation body (10), arranged in the ground (11), and
wherein the tubular tower (18) has a tower foot flange (17) on its bottom side, which is or will be connected with the foundation body (10) by means of a flange connection,
wherein at least one injection hose (20) is or will be arranged in the area of the top side (15) of the foundation body (10) facing the tower foot flange (17), in particular on the top side (15) of the foundation body (10), or at least one injection hose (20) is or will be arranged on the top side (15) between the tower foot flange (17) and the top side (15) of the foundation body (10) facing the tower foot flange (17) or a connection component (14, 21) is or will be arranged in the foundation body (10), on which top side (15) projecting out of the foundation body (10) is or will be arranged the tower foot flange (17), wherein at least one injection hose (20) is provided at a predetermined distance from the bottom part in the area of the bottom part of the connection component (14, 21) arranged in the foundation body (10).

2. A wind power plant (W) comprising:

a tower (18),
wherein the top part of the tower (18) will be or is arranged above a foundation body (10), arranged in the ground (11), and
wherein at least one injection hose (20) is provided in the area of the bottom part of the tower (18) arranged in the foundation body (10) at a predetermined distance from the bottom part.

3. The wind power plant (W) according to claim 2, wherein the at least one injection hose (20) is arranged or fastened on the bottom part of the connection component (14, 21) or on the bottom part of the tower (18).

4. The wind power plant (W) according to claim 2, wherein one or more injection hoses (20) are arranged on a lower flange ring (19) of the bottom part of the connection component (14, 21).

5. The wind power plant (W) according to claim 2, wherein the injection hose (20) or the injection hoses (20) are arranged or fastened on a lower section or a lower layer of the foundation body (10), in particular on a bedding plate.

6. The wind power plant (W) according to claim 2, wherein at least one end of the injection hose (20) or the injection hoses (20) are configured to project out of the foundation body (10), inside the tower, wherein in particular a storage bag is provided for receiving the end or the ends of the injection hose (20).

7. The wind power plant (W) according to claim 1, wherein the connection component (14, 21) is formed as a foundation component (14) or as an anchor basket (21).

8. The wind power plant (W) according to claim 1, wherein an intermediate connection body (23, 25, 26) is provided between the bottom side of the tower foot flange (17) and the top side of the foundation body (10), wherein the at least one injection hose (20) is arranged below or in the intermediate connection body (25), and wherein the intermediate connection body (23, 25, 26) is in force-fit contact with the tower foot flange (17).

9. The wind power plant (W) according to claim 8, wherein the intermediate connection body (23, 25, 26) is formed as a load-distribution plate (26) or as a power-transmission body (25), preferably configured with a receiving space for the injection hose (20).

10. Method for the erection of a tower (18) of a wind power plant (W) comprising the following steps:

Formation of a foundation body (10), on or in the ground (11),
Arrangement of a tower (18) or a tower part on the top side (15) of the foundation body, wherein at least one injection hose (20) is or will be arranged in an intermediate connection body (25) to be configured or configured between the bottom side of a tower foot flange (17) of the tower (18) or of the tower part and the top side (15) of the foundation body (10),
wherein an injection mass is introduced to the injection hose (20) or the injection hoses (20) before or during or after arrangement of the tower (18) or of the tower part 10 on the foundation body (10).

11. Method for the erection of a tower (18) of a wind power plant (W) comprising the following steps:

Formation of a foundation body (10), on or in the ground (11), wherein a connection component (14, 21) is or will be arranged in the foundation body (10) and its top part projects out of the foundation body (10),
Arrangement of at least one injection hose (20) in the area of the bottom part of the connection component (14, 21) arranged in the foundation body (10), and
Arrangement of a tower (18) or a tower part on the top 25 side of the connection component (14, 21),
wherein an injection mass is introduced to the injection hose (20) or the injection hoses (20) before or during or after arrangement of the tower (18) or of the tower part on the connection component (14, 21).

12. Method for the erection of a tower (18) of a wind power plant (W) comprising the following steps:

Arrangement of a top part of a tower (18) above a foundation body (10) to be formed in particular on or in the ground (11), wherein at least one injection hose (20) is or will be arranged in the area of the bottom part of the tubular tower (18) arranged in the foundation body (10) at a predetermined distance from the bottom part, and
Formation of a foundation body (10), wherein an injection mass is introduced to the injection hose (20) or to the injection hoses (20) before or during or after arrangement of the top part of the tower (18) above the foundation body (10).

13. The method according to claim 10, wherein an injection filling medium is introduced to the injection hoses (20) after casting of a foundation mass, in particular

concrete, for the formation of a foundation body (10).

14. The method according to claim 10, wherein the injection hose (20) or the injection hoses (20) will be or are filled with a liquid, before the casting of the foundation mass, in particular concrete.

15. The method according to claim 10, wherein the injection hose (20) or the injection hoses (20) will be or are casted with a casting compound according to the arrangement of the injection hose(s) (20) on the top side (15) of the foundation body (10), wherein in particular the injection hose(s) (20) will be or are arranged outside a load-distribution plate (26) or in the hollow space of an intermediate connection body (25) between the top side (15) of the foundation body (10) and the bottom side of the tower foot flange (17).

16. The method according to claim 10, wherein the casting of the casting compound takes place after casting of the concrete and after aligning of the connection component (14, 21) or after alignment of the intermediate connection body (25).

17. (canceled)

Patent History
Publication number: 20110041438
Type: Application
Filed: Feb 16, 2009
Publication Date: Feb 24, 2011
Applicant: REPOWER SYSTEMS AG (Hamburg)
Inventor: Bernd Frost (Winseldorf)
Application Number: 12/918,593
Classifications
Current U.S. Class: Supporting Shaft (52/296); Filler Is Cementitious (e.g., Concrete, Etc.) (52/742.14); Column, Mast, Etc., Construction (52/745.17); Column, Mast, Etc. (52/651.07); Assembled In Situ-type Anchor Or Tie (52/698)
International Classification: E04H 12/00 (20060101); E02D 27/42 (20060101); E04G 21/04 (20060101); E04B 1/38 (20060101);