DE202016104385U1 - wall element - Google Patents

Abstract

Wall element for securing against an area adjacent to an excavation and as part of a building wall with at least one first shell (2) of a building material (9), wherein the first shell (2) has a cutting edge (11) formed bottom edge, characterized in that the first shell (2) has a recess (7) at least partially on at least one outer surface, in which at least one functional layer (8) is arranged, which comprises at least one material.

Description

The invention relates to a wall element against a, adjacent to a pit area and a method for producing the wall element.

From the DE 196 16 188 A1 a method for introducing a wall element in a floor of a pit is known. In the method, the wall element, which is to be introduced into the ground, on its lower edge on a cutting edge. The cutting edge penetrates into the ground and is sunk by successively removing the soil from one side of the plate. After reaching the desired Abteuftiefe the plate remains in the ground and forms part of the building wall to be erected.

When digging excavations, settlements preferably occur in the adjacent floor area.

The pit designates the space below a terrain surface, which corresponds in shape to the below the terrain surface located part of a building to be constructed, preferably a building. The excavation includes the construction pit enclosure and the excavation pit. The construction pit enclosure is referred to below as embankment.

The stability of the embankment depends on the characteristics of the adjacent soil and the water conditions in the adjacent soil (eg groundwater or surface water).

Loads on the top of the embankment structures such. B. building, this can adversely affect the embankment of the pit. Furthermore, traffic-related vibrations in particular have a negative effect on the slope of an excavation pit. At the top of the embankment, the terrain surface can break off and fall into the excavation.

Conventional wall elements often meet the statutory heat protection requirements only insufficient. Additional thermal insulation elements must be retrofitted after the installation of the wall element on the outside of the wall element. This is at the expense of the space requirement of the building and brings with it additional costs.

Known wall elements are introduced with their lower end in the bottom of the excavation and anchored there. For introduction into the soil, the wall elements are preferably driven mechanically into the ground or vibrated.

As a result, considerable vibrations are introduced in particular in the area adjacent to the excavation. The vibrations can damage the embankment of the excavation. If the excavation borders on a neighboring building, the vibrations can lead to cracks in the wall of the neighboring building or damage the neighboring building in another way.

In order to be able to at least significantly reduce the vibrations that occur during insertion of the wall element into the ground, the bottom wall of the wall of known wall elements is often designed as a cutting edge. However, known cutting have the disadvantage that they are often damaged when penetrating the soil on existing stones in the ground or rocks or break it off.

When removing the steel beams after setting the building wall, the steel beams must be removed from the floor again.

For this purpose, considerable forces must be applied. Removing the steel beams from the floor may damage the wall that has just been erected. The adjacent floor area or building adjacent to the excavation can be damaged.

Leaving the steel profiles in the ground would result in a considerable additional cost and also have a lasting effect on the structure of the building.

Against the background of the disadvantages of the known from the prior art method for introducing walls into a floor, the invention has the object to provide a wall element with which the wall element can be introduced with less effort in the soil in particular the excavation.

The wall element should be designed so that it is not damaged when inserted into soil, regardless of the nature of the soil.

Another object of the invention is to form the wall element so that the wall element can be used for border construction.

It should be provided a wall element, when it enters the ground, the occurrence of adverse effects on the adjacent property such. As vibration and shock and / or the risk of damaging a neighboring building, if not completely open, so it can be significantly reduced.

An additional object of the invention is to give the wall element a shape with which it is possible, the wall element with a significantly reduced external z. B. machine force and under increased inclusion of its own weight in the ground to introduce.

An additional object of the present invention is to design the wall element in such a way that, in particular, the supporting structures of the wall element can be formed inexpensively with a small wall thickness.

The wall element should continue to be designed so that a subsequent attachment of further functional layers, such. B. layers for thermal insulation or for the discharge of water after the introduction of the wall element in the ground is no longer necessary.

The functional layer designates a layer which is arranged on the outside of the building. The functional layer can by way of example and in no way be an outer insulation layer, an insulation board, an insulating wadding, a hardened material made of insulating foam, a cavity insulation, a foam board or a mineral fiber board.

The present objects are achieved by a wall element according to the features of claim 1 and by the associated method for producing the wall element according to claim 18 and by a method according to the prepared wall element.

wall element

The wall element in the context of the present invention comprises in particular a support element made of reinforced concrete, precast, pillars of precast reinforced concrete, precast concrete elements, prefabricated elements made of reinforced concrete, panels of reinforced concrete prefabricated wedges, at least one concrete double wall or a reinforced concrete double wall. The list gives only examples and does not represent a comprehensive list.

The wall element is part of a building to be built. It can be arranged vertically, horizontally or at an angle. Wall elements are arranged individually or in combination with each other. At least two wall elements can be aligned with each other, in a plane or at an angle to each other.

The wall element according to the invention is a component which preferably has a first and a second shells, which are each made of a building material. As a shell is understood in this context, a building component made of the building material. The shell can be flat or curved and take loads both vertically and in its plane. Furthermore, it is assumed that the building material for the production of the shell is a liquid and hardenable concrete. To form the wall element, the first and the second shell are preferably connected to each other in such a way that they are arranged axially parallel to each other.

According to the invention, a wall element can be used to protect an excavation against an area adjacent to the excavation. The wall element secures the embankment of the excavation, against damage and / or at least partial collapse into the excavation.

The wall element can be used as a boundary development. The boundary development refers to a building that is located on a distance to another building or without distance to the property boundary.

According to the invention, the wall element is a prefabricated component. The prefabricated component, in addition to the wall element further components, in particular additional functional layers such. B. thermal barrier coatings or water-repellent layers. The mounting of the wall element takes place in a separate location. The installation of the prefabricated wall element takes place after delivery of the wall element directly in the excavation. Further processing of the wall element in the excavation is no longer necessary.

Another advantage is that the adjoining the excavation floor or the adjacent building after installation of the wall element for subsequent application in particular the functional layer no longer has to be affected.

Production of the wall element

For the production of the wall element, the functional layer is arranged on a base. The term pad refers to any type of work surface on which a functional layer can be arranged.

The functional layer is covered with a material. A flowable material is a material that can be processed in a flowable or liquid form and hardens after processing. In the following it is assumed that a flowable concrete.

The flowable concrete pours at least over one side of the functional layer, in particular beyond the back of the functional layer and at least to the end faces of the functional layer beyond the back of the functional layer.

The part of the preferably liquid concrete, which extends beyond the back to the end face of the functional layer is formed to the cutting edge of the shell.

In the flowable concrete, a metal reinforcement is inserted, which extends beyond the back into the area of the cutting edge. The metal reinforcement refers to a grid structure or arrangement of wires, preferably of iron or steel, for reinforcing the concrete shell. The grid structure and the wires may be straight or curved.

In the still flowable concrete on the side facing away from the functional layer side of the first shell first free ends of a lattice girder are embedded. The term lattice girder refers to a spatial structure of a plurality of bars, preferably wires, which is connectable to the concrete shells.

The first shell provided with the lattice girder is turned over.

The first layer opposite free ends of the lattice girder are embedded in a container with a predetermined amount of flowable concrete. The predetermined amount of flowable concrete hardens and forms the second shell of the wall element.

The advantage of such a construction method is that the wall element can be delivered as a prefabricated component to the excavation, which already includes the arranged between the concrete shells lattice girder and arranged in the recess of the first shell functional layer in addition to the two concrete shells.

cutting edge

According to the invention, the bottom-side lower edge of at least the first concrete shell is designed as a cutting edge.

The concrete extends beyond the area of the back of the shell and forms at least at the end faces of the shell a concrete edge region. The edge area made of concrete is designed as a cutting edge. For this purpose, the edge region of the shell tapers at its outer edge to form a cutting edge. To form the cutting edge, a mold can be provided into which the flowable concrete flows and in which it hardens. The design of the cutting edge can also be done in a different form.

The cutting edge is intended to facilitate insertion of the wall element into the ground.

Over the cutting edge, the shell penetrates into the ground.

The edge of the shell of the wall element can be positioned exactly in the area of the excavation so that the soil of the embankment does not collapse and / or fall into the excavation or the embankment is damaged in another way.

With the help of at least one first shell having the cutting edge, the wall element can be introduced into the ground without damaging the floor of the adjacent property or a building part adjacent to the building pit.

Additional heavy equipment for inserting the trays into the soil may still be required depending on the nature of the soil. To insert the shell into the soil, the shell is crushed into the soil, shaken or otherwise introduced into the soil.

However, according to the invention, the introduction of the wall element via the base-side edge of the concrete shell designed as a cutting edge into the floor, preferably the excavation, is possible with a considerably lower expenditure of force.

Cutting edge with metal reinforcement

The metal reinforcement runs inside the concrete shell. It preferably extends axially parallel to the recess.

The cutting edge has a metal reinforcement. The metal reinforcement extends into the recess of the projecting edge of the concrete shell, in which the cutting edge of the shell is made of concrete.

The term metal reinforcement comprises a structure of wires or a lattice structure, preferably of iron or steel. The metal reinforcement is formed straight or curved. To stabilize the cutting edge at the edge of the concrete shell, the metal reinforcement has a curved course in the area of the cutting edge.

The metal reinforcement comprises wire thicknesses of ... to ... millimeters. But it can also be used other wire sizes.

The shell may have a metal reinforcement. In the region of the back and the cutting of the shell a plurality of mutually parallel metal reinforcement may be arranged.

The arrangement of a metal reinforcement in the concrete shell and in the cutting edge of the concrete shell has the advantage that the concrete shell can be kept particularly thin, in particular in the area of the cutting edge. The arrangement of the metal reinforcement in the shell causes a special stability of the shell and in particular the cutting edge.

On the shell and on the cutting edge, a coating made of rubber or of another material can be arranged on the outwardly facing side of the shell. This has the advantage that the concrete can be coated as a material of the shell and the cutting edge, in particular to further reduce the friction of the shell in the ground with another material. By reducing the friction of the cutting edge and the concrete shell, the insertion of the shell into the ground is additionally facilitated. The coating of the cutting edge of the concrete shell may be a plastic, preferably a polyurethane.

Bowl

The wall element may have one or more shells. The shell is made of a material, preferably made of concrete.

By way of example and not exclusively, it is assumed that the wall element comprises two shells arranged parallel to one another.

The two preferably parallel to each other running concrete shells of the wall element have relative to the depth of the excavation on different lengths. The bow-side first shell of the wall element has a greater vertical length than the excavation facing the second concrete shell.

At the lower edge of the area of the first concrete shell, which projects beyond the second concrete shell, the cutting edge is arranged. The area around which the first shell projects beyond the second shell is also designed for anchoring in a building foundation.

The inclined to the edge of the excavation shell has an outwardly facing recess in which a functional layer is arranged.

recess

Preferably, the facing out to the outside of the excavation shell made of concrete has at its the embankment or the neighboring building facing outside at least one recess.

The recess may have a round cross section, an oval cross section or an angular cross section. It goes without saying that the cross section of the recess may also have a different geometric shape.

One or more recesses may be provided in the first shell.

The at least one recess engages at least on one side in the first shell relative to the embankment of the excavation.

The thickness of the concrete in the back of the recess of the respective shell may differ from the thickness of the concrete at the edges of the shell comprising the blades.

The recess may have the shape of a cylinder or a pot or another geometric shape. The recess comprises a bottom and the bottom enclosing side walls. The side walls are at an angle, preferably perpendicular to the bottom of the recess. The angles of the side walls of the recess may also be arranged to the bottom of the recess so that the diameter of the recess widens towards the slope. On the other hand, the angles of the side walls of the recess can be arranged to the bottom of the recess so that the diameter of the recess tapers towards the slope.

functional layer

The term functional layer in the present context denotes a layer comprising at least one material which is embedded in the recess of the preferably first shell and anchored there.

The functional layer comprises one or more materials. The material can be liquid and harden. Solid materials can also be used to form the functional layer.

The functional layer may be planar or structured.

The functional layer is formed so that it conforms to the inner circumference of the recess provided in the first shell.

The material of the functional layer arranged in the recess may comprise at least one plastic. Plastics in the context of the present invention are exemplary and in none, exclusively, thermoplasts, thermosets or elastomers. Preferably, polyurethane plastics (PU) are used.

The use of at least one plastic for producing the functional layer arranged in the recess of the shell proves to be advantageous since the functional layer is inexpensive to manufacture and preferably undergoes little or no weathering on the outside of the building in the floor or above the floor surface.

Functional layers of plastic are used to fill the recess, since the at least one plastic functional layer can be painted or treated in the same way as the concrete wall. The functional layer is indistinguishable on the outside of the building from the surrounding concrete wall.

The functional layer for receiving in the recess of the first concrete shell may also comprise other materials. Depending on which physical and / or chemical property is to be assigned to the functional layer arranged in the recess (eg thermal insulation, resistance to liquids), a corresponding material is selected.

The functional layer forming material may be a natural product. A natural substance describes a substance, preferably a compound, which is formed by organisms. Natural products are preferably used in the thermal insulation of the outer walls of low-energy houses.

The physical and / or chemical properties of a material such. B. the thermal conductivity, the density or z. As the corrosion resistance of a substance transferred to the arranged in the recess functional layer.

It goes without saying that the materials may also have other physical and / or chemical properties.

Depending on whether the functional layer z. B. should have a material which is permeable to fluids, preferably rainwater or whether the layer arranged in the recess should have a heat-insulating effect, a material with the appropriate chemical and / or physical properties can be used.

The functional layer may comprise, individually or in combination with one another, solid and / or curable liquid materials. In this way, almost any technically manufacturable material can be used for the production of the functional layer.

Device for connecting the functional layer to the shell

The invention provides that the shell in the region of the recess has at least one device which connects the shell with the functional layer.

For this purpose, the functional layer may have groove-like indentations. The preferably curable and / or flowable material of the functional layer can penetrate into the groove and cools there. The cooled material of the functional layer is connected in this way captive with the shell made of concrete.

It goes without saying that the device of the shell can also have a different geometric shape or a different mode of action. With the help of the device of the shell, the material of the functional layer is positively and / or formally liquid with the shell captive connected.

By way of example and in no way exclusively, the devices for fastening the functional layer to the shell are screws, dowels and / or bolts.

Another embodiment of the invention provides that the functional layer arranged in the recess has a device with which the functional layer in the recess can be connected to the shell. With the help of the device of the functional layer, the material of the functional layer is positively and / or formally liquid with the shell captive connected.

The functional layer can be structured and / or profiled in such a way that the solid and / or curable liquid material of the functional layer is anchored in and / or on the concrete shell.

girder

The term lattice girder refers to a spatial structure of a plurality of bars, preferably wires, which is connectable to the concrete shells.

The wires are laid one above the other and connected at intersections with each other to form a grid. By way of example and in no way exclusively, the lattice girder is designed as truss girder. The lattice girders preferably have X-shaped contiguous support elements.

The lattice girder may be designed as a scissor lattice zigzag-shaped or sawtooth-shaped. The preceding list is only an example meant and not exclusively thought. It goes without saying that the lattice girder can also have other forms of construction.

With the aid of the lattice girder, the first and second concrete shells are preferably positionable in a parallel arrangement at a predetermined distance from one another.

The lattice girder has free ends which are inserted on the back of the first shell in the still flowable concrete. The concrete hardens, whereby the free ends of the lattice girder are anchored in the first shell.

On the side of the lattice girder, which faces away from the functional layer, the lattice girder has second free ends. The second free ends are anchored in the concrete layer of the second shell.

The first shell provided with the lattice girder is turned over. The lattice girder is introduced on the side facing away from the first shell in an amount in a form flowable concrete to form the second shell. The second shell hardens and is firmly connected to the lattice girder.

In the region of the at least one lattice girder, which connects the two concrete shells together, a cavity extends.

According to the invention, the cavity is filled with at least one material.

Depending on the requirement, at least one material is introduced, which preferably improves the thermal insulation or the noise insulation of the wall element. In addition, other materials with different physical or chemical properties can be introduced into the cavity.

method

• Verfahren zur Herstellung des Wandelements umfassen die Schritte:
• – Ausbilden einer ersten Schale durch Anordnen der wenigstens einen Werkstoff umfassenden Funktionsschicht auf einer Unterlage;
• – Anordnen einer über die Funktionsschicht hinausragenden Metallbewehrung auf die Funktionsschicht und;
• – Übergießen der Funktionsschicht und der Metallbewehrung mit dem fließbaren Baustoff; und Ausbilden einer ersten Schale durch Anordnen des Baustoffs auf der Funktionsschicht und wenigstens an den Stirnseiten der Funktionsschicht und Einbetten der Metallbewehrung in dem Baustoff; und
• – Ausbilden einer Schneide an wenigstens einer Stirnseite der Funktionsschicht; und
• – Anordnen eines Gitterträgers auf der von der Funktionsschicht abgewandten Seite der ersten Schale und Aushärten der ersten Schale; und
• – Umdrehen der mit dem Gitterträger verbundenen ersten Schale und Einbetten von freien Enden des Gitterträgers an seiner von der ersten Schale abgewandten Seite in eine Form mit fließbaren Baustoff zur Ausbildung der zweiten Schale und Aushärten der zweiten Schale.

A method is provided for producing the wall element comprising the following steps:

• Method for producing the wall element comprise the steps:
• Forming a first shell by arranging the functional layer comprising at least one material on a substrate;
• - Arranging a projecting beyond the functional layer metal reinforcement on the functional layer and;
• - pouring over the functional layer and the metal reinforcement with the flowable building material; and forming a first shell by arranging the building material on the functional layer and at least on the end faces of the functional layer and embedding the metal reinforcement in the building material; and
• - Forming a cutting edge on at least one end face of the functional layer; and
• - placing a lattice girder on the side facing away from the functional layer side of the first shell and curing of the first shell; and
• Turning over the first shell connected to the lattice girder and embedding free ends of the lattice girder on its side facing away from the first shell into a mold with flowable building material for forming the second shell and curing the second shell.

With the aid of the method, a wall element is produced which comprises at least two parallel concrete shells.

The process according to the wall element is prefabricated. The prefabricated wall element comprises the at least two parallel arranged concrete shells. The prefabrication also includes the joining of the two concrete shells with the help of the lattice girder. In addition, a material is preferably introduced for thermal insulation in the space between the first shell and the second shell in the region of the lattice girder. It goes without saying that the material in the intermediate space can also fulfill another function.

A structural component comprising the recess-containing shell and the lattice girder is turned over.

The thus turned over component is immersed with the free ends of the lattice girder, which are facing away from the first shell in a mold filled with liquid building material.

The arranged in the form amount of flowable building material, preferably flowable concrete corresponds in shape and extent to the volume of the second concrete shell.

After curing of the concrete of the second concrete shell, the prefabricated and the functional layer comprehensive wall element is introduced into the bottom of the excavation.

An advantage of the method is that further production steps and / or processing steps of the wall element in the excavation are no longer necessary.

The wall element according to the invention is designed for use as a boundary development element.

Border building element

The boundary development refers to a building that is located on a distance to another building or without distance to the property boundary.

For this purpose, the wall element is preferably arranged vertically or at an angle in the excavation. The wall element is introduced via the edge of the first shell into the ground, preferably the excavation.

The soil detached from the wall element by means of the cutting edge is removed before and / or under the cutting edge of the shell. As a result, the wall element penetrates ever deeper into the bottom of the excavation.

An impact, a shaking or a ramming of the wall element by means of an associated tool is required only to a small extent.

When used as a boundary development element, the wall element according to the invention remains anchored after reaching the desired penetration depth in the bottom of the excavation.

The wall element designed as a boundary development element comprises at least two concrete shells, which are metal-reinforced with wires and / or wire meshes.

The formation of the wall element as a boundary development element proves to be extremely advantageous because adjacent to the wall element adjacent floor or adjoining the wall element adjacent building during insertion of the wall element in the bottom of the excavation is not affected by shocks.

For the exact, preferably vertical alignment of the boundary development element (wall element), at least one support is anchored in the bottom of the construction pit before the wall element is introduced into the excavation.

The support may be a profile element. The support may be a T-carrier or a double-T carrier or a steel carrier formed in another form. It goes without saying that the support can also be formed in a different geometric shape.

The wall element in the form of a boundary development element slides or rolls during penetration into the bottom of the excavation on the at least one support. The support also serves the exact vertical orientation of the wall element with respect to the embankment of the excavation.

The metal reinforcement of the shells of the boundary building element (wall element) causes a reduction of a shear stress between the two shells, which arises through the material arranged in the space between the shells.

The supports that align the boundary development element with the introduction into the floor of the excavation take up the lateral ground pressure that acts on the boundary development element (wall element).

The supports also prevent a negative effect of subsidence in the adjacent area of the bottom of the excavation on the boundary development element.

If the boundary development element (wall element) has reached its desired depth relative to the bottom of the excavation, the connection of the boundary development element takes place with the foundation of the building.

For this purpose, the boundary development element on facilities such. B. holes and pins that promote anchoring of the foundation with the region of the first shell, which projects beyond the second shell with respect to the vertical length of the first shell.

Trained as Grenzbebauungselement wall elements remain in the pit after connection to the foundation of the building.

The wall element is aligned and positioned with the help of the support exactly vertical or at a predetermined angle to the slope of the excavation. The supports are no longer necessary because the wall element is inserted sufficiently deep into the bottom of the excavation using the cutting edge of the first concrete shell and is removed.

Due to the at least two shells of the boundary development element (wall element), the boundary development element is anchored sufficiently firmly in the ground of the excavation.

The boundary development element has the advantage that the frictional force in the region of the cutting edge can be reduced since the dissolved soil is removed before and under the edge of the first shell.

The boundary development element extends at least to the bottom of the excavation. In this way, the boundary development element to the Support excavation adjacent area reliable.

It proves to be advantageous that the supports cover the entire vertical length of the boundary development element. In this way, the boundary development element can be guided exactly to reach its desired depth in the bottom of the excavation.

If the boundary development element (wall element) has reached the desired depth in the bottom of the excavation pit, the soil, which is preferably loosened by the cutting edge of the first shell, is not further removed.

This results in an increasing frictional force between the shells of the wall element and the floor of the excavation, which leads to an improved anchoring of the boundary development element in the bottom of the excavation.

The wall element or the boundary development element is described below with reference to the drawing with its details and advantages shown: Here shows 1 a wall element with two shells and a support.

1 shows a wall element 1 with a first shell 2 and a second shell 3 ,

The first shell 2 is from the second shell 3 through a lattice girder 4 spaced.

At the side, the embankment 5 the excavation pit 6 is facing, is in the first shell 2 a recess 7 arranged.

In the recess 7 is in 1 a functional layer 8th shown.

The concrete material 9 the first shell 2 extends along the back 10 the functional layer 8th and in the area of a cutting edge 11 ,

The over the recess 7 projecting area 12 the first shell 2 is in the area of the back 10 the Bowl 2 bevelled and tapered to form the cutting edge 11 towards the embankment 5 ,

On the from the first shell 2 opposite side of the lattice girder 4 is the second shell 3 arranged.

In terms of a prop 13 has the first shell 2 a longer length than the second shell 3 ,

For vertical alignment of the wall element 1 lies the wall element 1 over a wood supplement 14 on the prop 13 at.

LIST OF REFERENCE NUMBERS

1

wall element

2

first shell

3

second shell

4

girder

5

embankment

6

excavation

7

recess

8th

functional layer

9

Concrete material

10

Back of the first shell

11

cutting edge

12

projecting area

13

support

14

wood garnish

15

metal reinforcement

16

cavity

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 19616188 A1 [0002]

Claims (17)

Wall element for securing against an area adjacent to an excavation and as part of a building wall with at least one first shell ( 2 ) from a building material ( 9 ), the first shell ( 2 ) as a cutting edge ( 11 ) formed bottom edge, characterized in that the first shell ( 2 ) at least one outer surface at least partially a recess ( 7 ), in which at least one functional layer ( 8th ) is arranged, which comprises at least one material. Wall element according to claim 1, characterized in that the building material ( 9 ) is an artificially produced stone, preferably concrete. Wall element according to claim 1, characterized in that the cutting edge ( 11 ) a metal reinforcement ( 15 ) having. Wall element according to claim 1, characterized in that the cutting edge ( 11 ) comprises or is coated with a friction-resistant material component. Wall element according to claim 1, characterized in that the material of the functional layer is a plastic, preferably a polyurethane. Wall element according to claim 1, characterized in that the material of the functional layer ( 8th ) is a natural product. Wall element according to claim 1, characterized in that the functional layer ( 8th ) comprises a fluid-permeable material. Wall element according to claim 1, characterized in that the functional layer ( 8th ) comprises a heat-insulating material. Wall element according to claim 1, characterized in that the functional layer ( 1 ) comprises a solid or curable liquid material. Wall element according to claim 1, characterized in that the first shell ( 2 ) in the region of the recess ( 7 ) at least one the first shell ( 2 ) with the functional layer ( 8th ) has connecting device. Wall element according to claim 1, characterized in that the functional layer ( 8th ) at least one the functional layer ( 8th ) with the first shell ( 2 ) has connecting device. Wall element according to claim 1, characterized in that the recess ( 7 ) surrounding first shell ( 2 ) a steel-reinforced flowable building material ( 9 ). Wall element according to claim 1, characterized in that at least one second shell ( 3 ) which are spaced from each other by means of at least one lattice girder. Wall element according to claim 11, characterized in that the first ( 2 ) and the second shell ( 3 ) are arranged axially parallel to each other and adjacent to the adjacent region of the first shell ( 2 ) has a greater length. Wall element according to claim 12, characterized in that the second shell ( 3 ) outstanding end of the recess ( 7 ) having first shell ( 2 ) is designed for connection to a foundation of the building. Wall element according to one or more of the preceding claims, characterized in that the first shell ( 2 ) and the functional layer ( 8th ) are a pre-assembled component. Wall element producible according to the method of claim 17, comprising: - at least one first shell ( 2 ) and a second shell ( 3 ); and - at least one in a recess of the first shell ( 2 ) functional layer ( 8th ); and at least one the first functional layer ( 2 ) with the second functional layer ( 3 ) connecting lattice girder ( 4 ); and - a cutting edge ( 11 ), which at the bottom of the excavation facing side of at least the first shell ( 2 ) is arranged; and - a lattice girder ( 4 ), which is the first shell ( 2 ) connects to the second shell; and - one in the area of the lattice girder ( 4 ) between the first shell ( 2 ) and the second shell ( 3 ) with a material fillable cavity ( 16 ).

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