EP3963138A1

EP3963138A1 - Connection in foundations

Info

Publication number: EP3963138A1
Application number: EP20713541.9A
Authority: EP
Inventors: Daniel Bartminn
Original assignee: RWE Renewables GmbH
Current assignee: RWE Renewables Europe and Australia GmbH
Priority date: 2019-05-03
Filing date: 2020-03-18
Publication date: 2022-03-09
Also published as: WO2020224844A1; DE102019111430A1

Abstract

A connection of two pile segments, comprising a first element (1) and a second element (2), wherein the first element (1) can be connected to the second element (2) in such a way that they have substantially the same direction of longitudinal extent, wherein the direction of longitudinal extent of the two elements (1, 2) runs substantially in the vertical direction, and wherein the first element (1) and the second element (2) together form an elongated element when situated one above the other, wherein the first element has, at one end, at least three sleeve-like elements (3, 3a-h) for receiving at least three spigot-like elements (4, 4a-h), wherein the second element (2) has the at least three spigot-like elements (4, 4a-h) at one end, and wherein, with engagement of the at least three spigot-like elements (4, 4a-h) in the at least three sleeve-like elements (3, 3a-h), the at least three spigot-like elements can be held in a non-releasable manner by means of a binder which is arranged between the respective inner wall of the at least three sleeve-like elements (3, 3a-h) and the respective outer wall of the at least three spigot-like elements (4, 4a-h) and which is situated between at least part of the respective inner wall of the at least three sleeve-like elements (3, 3a-h) and at least part of the respective outer wall of the at least three spigot-like elements (4, 4a-h).

Description

Connection in start-ups

Field of invention

The invention relates to a foundation, e.g. B. a pile, for the foundation and / or anchoring of structures, in particular onshore or offshore structures.

Background of the invention

In the manufacture and construction of onshore or offshore structures such as oil and gas platforms, wind turbines or transformer stations, as well as other tower-like structures, it is necessary, for. B. pipe segments of the foundation with each other (e.g.

force-fit).

The majority of all such foundations were traditionally created by a so-called grouted joint in the transition between MP (Monopile) and TP (Transition Piecerein

Transition piece) connected to each other. Due to economies of scale and ovalization effects, which cause deformation from longitudinal bending from circular to oval, in pipes with large diameters that are stressed both axially and by bending, damage has occurred in a large number of such foundations, especially in connections without welded shear ribs.

As an alternative to such grouted joints, pretensioned screw connections have therefore also increasingly been used in the recent past. However, this type of connection comes up against technical limits, for example in the case of turbine sizes of a wind energy installation with an output of 12 MW and more. In addition, screw connections require considerable maintenance work over their lifetime in order to achieve the required

Check or guarantee the pretensioning force.

Flange connections also reach their limits in larger systems. Such

Flange connections have been developed e.g. B. for M36 / M42 screws, and now even up to M72 screws are used. You can also use this type of connection problems arise if the pile is bent. Furthermore, such flange connections are also maintenance-intensive.

General description of some exemplary embodiments of the present invention

The disadvantage is that known connections for foundations are maintenance-intensive.

It would be desirable to address the problems and disadvantages described above in the

Connection z. B. with ovalization effects and / or combined bending and

To reduce axial stress, and in particular to provide a possibility to find a cost-effective connection variant that is low-maintenance or advantageously maintenance-free.

According to a first exemplary aspect of the invention, a foundation is proposed, comprising:

a first element; and

a second element,

wherein the first element is connectable to the second element such that the first element and the second element are substantially the same

Have longitudinal extension direction,

wherein the direction of longitudinal extension of both elements runs essentially in the vertical direction, and

wherein the first element and the second element lying one above the other together form an elongated element,

wherein the first element at one end has at least three sleeve-like elements for receiving at least three peg-like elements, wherein the second element has the at least three peg-like elements at one end, and when the at least three peg-like elements engage in the at least three sleeve-like elements a binding agent arranged between the respective inner wall of the at least three sleeve-like elements and the respective outer wall of the at least three pin-like elements and / or by frictional engagement between at least one part of the respective inner wall of the at least three sleeve-like elements (3a-3h) and at least one part the each outer wall of the at least three peg-like elements (4a-4h) can be held non-detachably.

According to a second exemplary aspect of the invention, a structure is disclosed which comprises a physical foundation according to the first aspect.

These two aspects of the present invention include i.a. the properties described below, some of which are exemplary.

It has been found that pipe and tenon connections provided (e.g. concentrically) with a binding agent (e.g. within the framework of grouting) have smaller ones

Pipe diameters can absorb greater stresses than connections with larger pipe diameters.

Correspondingly, the subject matter is based on the knowledge to distribute loads over several such peg-like elements, which are connected in particular over the entire circumference of a tubular element (e.g. an MP), which is connected to another tubular element (e.g. in TP) are to be distributed. These peg-like elements engage in

corresponding and several sleeve-like elements that are attached to the

tubular elements are arranged a. In this way, occurring loads can be transferred to a large number of "smaller" connections. Each of these formed connections is then, for example, less loaded with regard to axial and bending forces than a singular connection, such as a flange connection in the comparison case for the respective pin-like elements (e.g. pin) and

Pipe connections the ovalization effects relative to the ovalization effects of the first and second element z. B. due to moment loads on the overall structure.

In particular, the first and the second element are tubular. In the following, the term “tubular element” is primarily used. It goes without saying that the first and the second element can, however, also have a shape deviating from a tubular shape, for example oval, rectangular, to name just a few non-limiting examples .

The foundation comprises or consists, for example, of one or more tubular elements (e.g. tubular segments). Forming one or more tubular elements for example a pile (also known as a foundation pile or monopile). A structure (e.g. offshore and / or onshore) can be arranged at the end of the foundation pointing upwards.

The foundation can for example be in the form of sheet pile walls, sheet pile profiles, in the form of piles, in particular foundation piles for, for example, monopiles or, for example, in the form of, in particular, tubular profiles.

An offshore and / or onshore structure is, for example, a wind energy installation, an oil rig, a production platform, a transformer and / or

Research platform, pipeline, or a combination of these, to name just a few non-limiting examples.

The combination “and / or” in the sense that it is, for example, an “offshore and / or onshore structure” includes, in particular, a structure that is founded with more than one pile, for example comprises more than one concrete foundation, for example one pile being onshore and another pile of the same structure being offshore.

The first tubular element represents, for example, a lower tubular segment of a foundation. At an end directed or facing towards another tubular element of the foundation, at least three sleeve-like elements (e.g. tubes, tubular sleeves, or the like) are arranged.

The second tubular element represents, for example, an upper tubular segment of a foundation arranged above the first tubular element. At an end directed or facing the first tubular element are at least three peg-like elements (e.g. peg-like tubes, rods, threaded rods, or like) arranged.

The at least three sleeve-like elements and / or the at least three peg-like elements are permanently connected to the corresponding tubular element of the foundation (e.g. welded on). Of course, the peg-like elements (e.g. pegs) and / or the sleeve-like elements (e.g. sleeves) can also be attached to the other Element be arranged. In an exemplary embodiment, both one or more peg-like elements (e.g. pegs) and one or more sleeve-like elements (e.g. sleeves) can be or are arranged on the first and / or second element in accordance with all aspects .

In the arranged state between the first and the second tubular element, the first tubular element and the second tubular element have the same

Longitudinal direction on. Together these form a longer (for example tubular) element which is composed of the respective length of the first and second tubular elements.

The direction of longitudinal extent extends essentially in the vertical direction. In this case, the first tubular element and the second tubular element are then arranged lying one above the other in a state established between them.

The at least three sleeve-like elements are designed in such a way that one of the at least three peg-like elements can be received in their respective cavity.

Within each of the at least three sleeve-like elements, a binding agent is arranged that in the joined state between the first and the second tubular element is in direct contact both between a respective one

peg-like element of the second tubular element as well as a respective sleeve-like element of the first tubular element is a so-called grooved connection between a peg-like element and a sleeve-like element can be produced, for example, by means of the binding agent. Such a pin-like element is held in a non-detachable manner in such a sleeve-like element by means of the binding agent. The term inseparable in the sense of the present subject matter is understood to mean a connection between two elements, in particular a tangible peg-like element and a tangible sleeve-like element, in which the connection can only be detached again by means of additional aids, such as a cutting and / or demolition tool, so so that the elements making the connection cannot resume their original state when the connection made is broken. in the In contrast to this, screw connections, for example, are only to be mentioned as a non-limiting example.

Alternatively or additionally, a peg-like element (z. B. peg) and a

A sleeve-like element (e.g. sleeve) can be connected to one another via a (e.g. precisely fitting) friction lock without the need for potting (e.g. offshore).

Correspondingly, the first and the second tubular element are each a large tube or tube segment and each have many (at least three) small tubes (in the case of a sleeve-like element), or plungers, rods, conical bodies (e.g. mandrels) or the like (in the case of a peg-like element). The latter are each inserted, for example, into a corresponding plurality (at least three) of smaller tubes. Subsequently, an objective non-releasable connection can then be established via the binder, e.g. B. by means of a grouting of the pin-like elements within the sleeve-like elements.

An exemplary embodiment according to all aspects of the present invention provides that the second element can be arranged above the first element.

This makes it easier to fill in binding agent, for example, since the at least three sleeve-like elements are oriented with their "filling opening" facing upwards. It goes without saying that the first tubular element can be the upper element in the arranged state instead of the second tubular element sometimes make it difficult to fill in binder.

An exemplary embodiment according to all aspects of the present invention provides that the second element comprises at least part of a structure at its free end that cannot be connected to the first element.

The first or the second (e.g. tubular) element is, for example, an MP (monopile). The second or the first tubular is then, for example, a TP (transition piece). Alternatively, the second tubular element (or the first tubular element for the latter alternative disclosed above) can be a tubular element which is arranged on a structure to be founded. Correspondingly, in the arranged state, a connection is established between the first and the second tubular element. This connection then exists, for example, between a monopile and an overlying platform of a structure to be founded. Alternatively, this connection between two elements of a pile, e.g. B. exist between an element of an MP and a TP.

An exemplary embodiment according to all aspects of the present invention provides that the at least three sleeve-like elements and / or the at least three peg-like elements are inextricably arranged at the respective end of the first element and / or the second element.

The at least three peg-like elements are located on an upper pipe segment, in particular the second (e.g. tubular) element, towards the lower termination in the arranged state

Elements (e.g. in the form of cone-like tubes), for example, welded on.

The at least three sleeve-like elements (e.g. pipes) are, for example, welded to a lower pipe segment, in particular the first (e.g. tubular) element, in the arranged state at its upper end. Each of the at least three sleeve-like elements is designed to be open at least on one side (for example towards the top). This is guaranteed for pipe sleeves, for example. In this way, for example, each of the at least three sleeve-like elements can each receive at least one peg-like element of the second tubular element (here the upper tubular segment).

Objectively, the foundation or the first and the second tubular element comprises at least three sleeve-like or pin-like elements, since fewer than three of these elements when there is an acting load such. B. by bending around a (e.g. imaginary)

Connection axis of only two sleeve-like elements (e.g. sleeves) these can no longer be removed correctly.

An exemplary embodiment according to all aspects of the present invention provides that the at least three sleeve-like elements and / or the at least three pin-like elements are each arranged on the end edge of the first element and / or the second element, so that their respective longitudinal direction is essentially parallel runs to the longitudinal direction of the first element and / or the second element.

The direction of longitudinal extension of the first (e.g. tubular) element runs in the sense of the article "substantially" parallel to the longitudinal extension direction of the second (e.g. tubular) element.

B. tubular) element, and vice versa, if the two tubular elements in the connected state form a (z. B. tubular) element. Due to loads acting, which for example can lead to a bending of the first and / or the second tubular element, it can happen that the respective longitudinal directions do not run exactly parallel to one another.

An exemplary embodiment according to all aspects of the present invention provides that the first and / or the second element have, for example, a respective wall thickness of approximately 40 mm or more. With such a wall thickness, the at least three peg-like elements or the at least three sleeve-like elements can easily be connected to the respective element (e.g. non-detachable).

An exemplary embodiment according to all aspects of the present invention provides that the binding agent is a casting material (e.g. a suspension such as a cement suspension) so that the at least three peg-like elements can be routed within the at least three sleeve-like elements.

An exemplary embodiment according to all aspects of the present invention provides that the binding agent is arranged in each of the at least three sleeve-like elements before the first element and the second element are brought together, and a reaction of the binding agent is triggered when the first element and the second element are brought together, so that the Binder hardens after joining.

The binding agent is, for example, a potting material. The binding agent is prepared, for example, in such a way that it can be used before the first (e.g.

tubular) element is prepared with the second (e.g. tubular) element in the form of a charge. The binder is for example with an airtight and / or

Provided waterproof cover and has such a shape that it can be introduced into the cavity of a sleeve-like element (suitably). Will connect produced between the first tubular element and the second tubular element, when brought together, for example, each of the at least three peg-like elements pierces the cover of the binding agent that was previously (before

Establishing the connection between the first and the second tubular element) was introduced into each of the at least three sleeve-like elements. The respective peg-like elements pierce the binding agent, so that air and / or water and / or another reactant then penetrates and the binding agent hardens. For example, this makes conventional on-site grounding superfluous. The binding agent enclosed by means of an (for example airtight) cover is, for example, in the form of cartridges which can be inserted into each of the sleeve-like elements.

The (z. B. airtight) cover ensures that, for example, the binding agent before merging z. B. cannot cure. When joining, a peg-like element pierces through the airtight cover, for example, so that only then does the binding agent come into contact with water and / or another reaction partner such as oxygen (air) and hardening of the binding agent is or is set in motion as a reaction to the piercing .

An exemplary embodiment according to all aspects of the present invention provides that each of the at least three sleeve-like elements has a diameter of less than or equal to 1 m.

Each of the sleeve-like and pin-like elements itself has, for example, a diameter of less than 1 m (seen as an absolute size). The background to this is that the highest stability of a connection produced by means of the binder can then be achieved. It goes without saying that the peg-like elements each have a diameter which is smaller than the diameter of that sleeve-like element in which the respective peg-like element is received or can be received.

A pin-like element can for example have a diameter of about 40 mm, so that the sleeve-like element then has an inner diameter between the inner walls of a respective sleeve-like element, which is correspondingly larger to accommodate a pin-like element. For example, any of the at least three pin-like elements can be designed as a mandrel, which can be accommodated accordingly in a sleeve-like element each designed as a tube.

An exemplary embodiment according to all aspects of the present invention provides that at least one (alternatively: the majority, or all) of the at least three peg-like elements is a threaded rod or a reinforcing bar.

A pin-like element is, for example, alternatively as a threaded rod or as a

Reinforcing bar formed. In the extreme case, hundreds of such peg-like elements could then be arranged on one element. For example, each of the as

Threaded rod or cone-like element designed as a reinforcing rod has a diameter of about 10 cm or less.

An exemplary embodiment according to all aspects of the present invention provides that the at least three sleeve-like elements are each spaced from one another.

In the event that the at least three sleeve-like elements are each spaced apart, it goes without saying that the respective pin-like elements as

Counterparts can also be spaced apart. For example, between the respective sleeve-like elements or pin-like elements

Spacers can be provided which, for example, enable safe storage or safe transport of the first or second tubular element. Immediately before or after the introduction of binding agent, e.g. B. in the case of greening, the respective spacers can be removed again. The spacers are consequently

for example detachably arranged between the sleeve-like or pin-like elements.

In the event that there is a distance between adjacent sleeve-like elements, peg-like elements can also be arranged between the sleeve-like elements within the intended distance when the first element is joined to the second element.

An exemplary embodiment according to all aspects of the present invention provides that the at least three sleeve-like elements are each in contact with one another. This configuration makes it unnecessary to use spacers disclosed above, for example. At the same time, this embodiment represents, for example, the maximum possible number of peg-like or sleeve-like elements used. It is understood that the possible number of peg-like or sleeve-like elements is different

Elements on the one hand by the respective diameter of the peg-like or

sleeve-like elements and on the other hand by the scope of the first or second element used.

An exemplary embodiment according to all aspects of the present invention provides that at least two of the three sleeve-like elements have a different length, so that bringing the first element and the second element together is facilitated.

The sleeve-like elements protrude to different degrees, for example. This makes threading easier, for example, when establishing a connection between the first and the second (for example tubular) element. It goes without saying that at least one sleeve-like element or at least one peg-like element projects further than the other sleeve-like elements encompassed by the first or second tubular element

Elements or peg-like elements. A staggering of sleeve-like elements or pin-like elements protruding to different extents can also be implemented. This also enables ensuring, for example, as disclosed below

Orientation when merging the first and the second tubular element.

An exemplary embodiment according to all aspects of the present invention provides that at least one of the at least three peg-like elements has a diameter that is larger than the inner diameter of at least two of the at least three sleeve-like elements, so that such a predefined orientation of the first element relative to the second element is realized when the two elements are brought together.

In certain applications, a predefined orientation between the first and the second (e.g. tubular) element should be ensured. This can e.g. B. result during assembly. For example, due to one or more cable pull-in holes that have to be aligned in a certain direction, a predefined orientation may be required. An exemplary embodiment according to all aspects of the present invention provides that each of the at least three sleeve-like elements has an elastic bearing as a bottom, so that the respective sleeve-like element is sealed off at the bottom.

In the bottom of the respective sleeve-like elements (for example on the sleeve-like element of the lower tube or first tubular element), elastic bearings, for example, are embedded for temporarily placing the pin-like elements. These bearings can, for example, absorb the dead load that results from the second element when it is brought together, for example before or during the cementing, and which must be diverted into the (lower) first element. Furthermore, the bearings close off a respective sleeve-like element at the bottom, so that the respective sleeve-like elements are thereby largely sealed off. This may be necessary for grout work, for example

An exemplary embodiment according to all aspects of the present invention provides that one or more sleeve-like elements of the at least three sleeve-like elements and one or more pin-like elements of the at least three pin-like elements are arranged on the first element as well as on the second element.

For example, the first element and the second element each comprise a pin-like element and a sleeve-like element, which are arranged side by side and alternating. If, for example, the first element is connected to the second element, the peg-like elements comprised by the first element each engage in sleeve-like elements comprised by the second element. Furthermore, the pin-like elements comprised by the second element each engage in sleeve-like elements comprised by the first element.

Further advantageous exemplary embodiments are detailed below

Description of some exemplary embodiments, in particular in connection with the figures. However, the figures are only intended for the purpose of clarification, not to determine the scope of protection. The figures are not true to scale and are only intended to reflect the general concept by way of example. In particular, features contained in the figures are by no means to be regarded as a necessary component. Brief description of the figures

In the drawing shows

1a, b show a schematic representation of an exemplary embodiment of one

objective foundation in an exploded view and a perspective view and

2a-d each comprising a detailed recording of an objective foundation

different configurations of sleeve-like and pin-like elements in the combined state.

Detailed description of some exemplary embodiments of the invention

The present subject matter is explained below using examples

Embodiments described.

1a, b each illustrate a schematic representation of an exemplary embodiment of an objective foundation.

The foundation G shown in FIGS. 1 a, b comprises a first, lower tubular element 1 and a second, upper tubular element 2.

The first tubular element 1 can be connected to the second tubular element 2. When the connection between the first tubular element 1 and the second tubular element 2 is established, they each have essentially the same direction of longitudinal extent. The foundation G is in the present case a monopile, also referred to as a pile. The direction of longitudinal extension of both tubular elements 1 and 2 runs essentially in the vertical direction after the connection has been established.

As indicated schematically, the first tubular element 1 and the second tubular element 2 lying on top of one another, that is to say after a connection has been established between them as shown in FIG. 1b, together form an elongated tubular element. It goes without saying that, according to this principle, the foundation G can have a third, fourth, n-th tubular element, so that the foundation G can accordingly have a large number of specific tubular elements. It is also understood that the tubular elements in this case then each correspondingly designed, at least three sleeve-like elements (analogous to the sleeve-like elements 3a-h) and the engaging counterparts at least three pin-like elements (analogous to the

have pin-like elements 4a-h).

The first tubular element 1 has at one end 5b at least three sleeve-like elements 3a-3h for receiving at least three pin-like elements 4a-4h. In the present case, the first tubular element comprises eight sleeve-like elements 3a-3h.

Correspondingly, the second tubular element 2 in the present case has eight peg-like elements 4a-h. The peg-like elements 4a-h are arranged at the end 5a of the second tubular element 2.

When the peg-like elements 4a-4h engage in the sleeve-like elements 3a-3h, a binding agent 6 is inserted between the respective inner wall of the sleeve-like elements 3a-3h and the outer wall of the peg-like elements 4a-4h (see also Fig. 2a). inserted or introduced. The binding agent is, for example, a suspension so that the peg-like elements 4a-4h are grounded within the sleeve-like elements 3a-3h.

Once the grouting has been completed, a connection between the first tubular element 1 and the second tubular element is established in such a way that they are non-detachably held together.

After the first element 1 and the second element 2 have been brought together, the connecting area comprising the sleeve-like elements 3a-3h and the pin-like elements 4a-4h can be provided with a casing 7, e.g. B. be enclosed in an apron solution.

For example, the casing can be designed in two parts, as can be seen in FIG. 1a. A first part 7-1 of the casing 7 can be connected to a second part 7-2 of the casing 7.

In this way, a cost-effective connection of two elements of a foundation can be realized that is low-maintenance or maintenance-free.

2a-d each illustrate a schematic representation of an exemplary embodiment of an objective foundation, with a detailed recording of an objective foundation being shown in the merged state. 2a-d show the state in which the peg-like elements 4 are arranged completely within the sleeve-like elements 3 (e.g. according to FIG. 1). Within the respective sleeve-like elements 3 is a binder 6, for. B. arranged a suspension. The

Binder 6 establishes a connection between a respective peg-like element 4 and a respective sleeve-like element 3 in a non-detachable manner in the sense of the object.

In Fig. 2a, the sleeve-like elements 3 are arranged at a distance A from one another and are therefore not in direct contact with one another. Furthermore, FIG. 2a illustrates that a respective peg-like element 4 has a smaller outer diameter D2 than an inner diameter D1 of a sleeve-like element 3. In the present case, the peg-like element 4 has such a smaller outer diameter D2 than that

Inner diameter D1 of the cavity formed by the sleeve-like element 3, so that the pin-like element 4h can be received in the sleeve-like element 3h. In addition, the outer diameter D2 is so smaller than the inner diameter D1 of the sleeve-like element 3, so that there is still binding agent 6 over the entire length of the area of the pin-like element 3 received in the sleeve-like element 4 between the (complete) outer wall of the pin-like element 3 and the inner wall of the sleeve-like element 3 can be arranged or is arranged.

The same applies to the other connections between other pin-like elements and sleeve-like elements in an identical manner.

The sleeve-like elements 3 are arranged on an inner wall of the first element 1 in such a way that they rest with an outer edge on the inner wall of the first element 1.

In contrast to FIG. 2a, the sleeve-like elements, identified by way of example in FIG. 2b and in the present case with the reference numerals 3a-e, are arranged on the first element 1 in such a way that they are not spaced apart (cf. distance A in FIG. 2a) . The sleeve-like elements 3a-3e are consequently arranged directly adjacent to one another.

Those enclosed by the second element 2 are consequently correspondingly denser

pin-like elements (only one of these is illustrated with the reference number 4c in FIG. 2b) are arranged closer to one another, so that they can engage in the corresponding sleeve-like elements 3a-e. FIG. 2c shows an embodiment in which the peg-like elements 4a-4h are arranged on the inside of the second element 2. The sleeve-like elements (the visible sleeve-like elements are identified in FIG. 2c with the reference numerals 3a-3e) are also arranged on the first element 1 in such a way that they are at least partially separated from the first

Elements 1 protrude. This configuration makes it possible, for example, that no additional casing (for example casing 7 of FIG. 1) is required.

When the first element 1 and the second element 2 are brought together, the sleeve-like elements 3a-3e and the pin-like elements 4a-4h are encased or covered by a lower section of the second element 2. This region of the second element 2 is also provided with the reference number 7 in FIG. 2 c to underline the same function as the apron solution shown in FIG. 1.

Fig. 2d shows a further embodiment of an objective foundation. In the present case, the sleeve-like elements 3 are arranged on an end edge of the first element 1 in such a way that the sleeve-like elements protrude both outwards and inwards over the end edge of the first element 1.

Furthermore, the pin-like elements 4 arranged on the second element have a diameter D2 such that a frictional connection between such

peg-like element 4 and a sleeve-like element 3 having a substantially identical inside diameter D1 can be produced or produced in the joined state. It goes without saying that such a frictional connection between at least one sleeve-like element and at least one peg-like element can also be used on one of the further exemplary embodiments shown in FIGS. 2a-c

concrete foundation can be used.

The exemplary embodiments of the present invention described in this specification and the optional features and properties cited in each case should also be understood to be disclosed in all combinations with one another. In particular, the description of a feature encompassed by an exemplary embodiment - unless explicitly stated to the contrary - is not to be understood here in such a way that the feature is essential or essential for the function of the exemplary embodiment. The sequence of the in The procedural steps described in this specification in the individual flowcharts is not mandatory; alternative sequences of procedural steps are conceivable. The

Method steps can be implemented in various ways, for example an implementation in software (by program instructions), hardware or a

A combination of both to implement the process steps is conceivable.

Terms such as “comprise”, “have”, “include”, “contain” and the like used in the patent claims do not exclude further elements or steps. The phrase “at least partially” includes both the case “partially” and the case “completely”. The phrase “and / or” is to be understood to the effect that both the alternative and the combination should be disclosed, ie “A and / or B "means" (A) or (B) or (A and B) ". The use of the indefinite article does not exclude a plurality. A single device can perform the functions of several units or devices mentioned in the patent claims. In the

Reference signs given to claims are not to be regarded as restrictions on the means and steps used.

List of reference symbols

G pile (foundation)

1 first tubular element (monopile)

2 second tubular element (transition piece) 3 sleeve-like element

3a-h sleeve-like elements

4 peg-like element

4a-h peg-like elements

5 a, b front edge

6 binders

7 sheathing

A distance

D1 diameter sleeve-like element

D2 diameter peg-like element

Claims

Patent claims

1. Foundation (G), comprising:

a first element (1); and

- a second element (2),

wherein the first element (1) can be connected to the second element (2) in such a way that the first element (1) and the second element (2) are essentially the same

Have longitudinal extension direction,

wherein the direction of longitudinal extension of both elements (1, 2) runs essentially in the vertical direction, and

wherein the first element (1) and the second element (2) lying one above the other together form an elongated element,

wherein the first element (1) at one end has at least three sleeve-like elements (3a- 3h) for receiving at least three peg-like elements (4a-4h), the second element (2) the at least three peg-like elements (4a-4h) at one end, and

whereby when the at least three peg-like elements (4a-4h) engage in the at least three sleeve-like elements (3a-3h) via a between the inner wall of the at least three sleeve-like elements (3a-3h) and the outer wall of the at least three peg-like elements Elements (4a-4h) arranged binding agent (6) and / or by frictional engagement between at least part of the respective inner wall of the at least three sleeve-like elements (3a-3h) and at least part of the respective outer wall of the at least three peg-like elements (4a- 4h) are inseparable.

2. Foundation (G) according to claim 1, wherein the second element (2) above the first

Element (1) can be arranged.

3. Foundation (G) according to one of the preceding claims, wherein the second element (2) comprises at least part of a structure at its free end which cannot be connected to the first element (1).

4. foundation (G) according to any one of the preceding claims, wherein the at least three sleeve-like elements (3a-3h) and / or the at least three pin-like elements (4a-4h) inextricably linked to the respective end of the first element (1) and / or of the second element (2) are arranged.

5. Foundation (G) according to one of the preceding claims, wherein the at least three sleeve-like elements (3a-3h) and / or the at least three peg-like elements (4a-4h) each on the front edge (5a, 5b) of the first element (1 ) and / or the second element (2) are arranged so that their respective

The direction of longitudinal extension runs essentially parallel to the direction of longitudinal extension of the first element (1) and / or the second element (2).

6. Foundation (G) according to one of the preceding claims, wherein the binding agent (6) is a potting material, so that the at least three peg-like elements (4a-4h) within the at least three sleeve-like elements (3a-3h) can be routed.

7. Foundation (G) according to one of the preceding claims, wherein the binding agent (6) is arranged in each of the at least three sleeve-like elements (3a-3h) before the first element (1) and the second element (2) are brought together, and a reaction of the binding agent (6) is triggered during the merging, so that the

Binder (6) hardens after merging.

8. foundation (G) according to any one of the preceding claims, wherein each of the at least three sleeve-like elements (3a-3h) has a diameter (D1) of less than or equal to 1 m

9. foundation (G) according to any one of the preceding claims, wherein each of the at least three peg-like elements (4a-4h) each have a threaded rod or a

Rebar is.

10. foundation (G) according to any one of the preceding claims, wherein the at least three sleeve-like elements (3a-3h) are each spaced apart (A).

11. Foundation (G) according to one of the preceding claims, wherein the at least three sleeve-like elements (3a-3h)) are each in contact with one another.

12. Foundation (G) according to one of the preceding claims, wherein at least two of the three sleeve-like elements (3a-3h) have a different length, so that bringing the first element (1) and the second element (2) together is facilitated.

13. Foundation (G) according to one of the preceding claims, wherein at least one of the at least three peg-like elements (4a-4h) has a diameter (D2) which is greater than the inner diameter (D2) of at least two of the at least three sleeve-like elements ( 3a-3h), so that a predefined orientation of the first element (1) with respect to the second element (2) is realized when the two elements (1, 2) are brought together.

14. Foundation (G) according to one of the preceding claims, wherein each of the at least three sleeve-like elements (3a-3h) has an elastic bearing as the bottom, so that the respective sleeve-like element (3a-3h) is sealed towards the bottom.

15. foundation (G) according to any one of the preceding claims, wherein on the first element (1) and on the second element (2) both one or more sleeve-like

Elements of the at least three sleeve-like elements (3a-3h) and one or more peg-like elements of the at least three peg-like elements (4a-4h) are arranged.

16. Structure with a foundation (G) according to one of claims 1 to 15 offshore

and / or is established onshore.