EP0932727A1

EP0932727A1 - Cellular construction, in particular supporting or sound insulating construction capable of being greened, and process for producing the same

Info

Publication number: EP0932727A1
Application number: EP97945859A
Authority: EP
Inventors: Felix Paul Dr. Jaecklin
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-10-18
Filing date: 1997-10-20
Publication date: 1999-08-04
Also published as: DE19643084A1; WO1998017866A1

Abstract

A cellular construction, in particular a supporting or sound insulating construction capable of being greened, is filled with earth, rocks or bulk materials (EG) in cells (Z) arranged in particular in layers. The cells are at least partially delimited by a flexible, liquid-permeable, in particular net or grid-like flat material (F) and have at least one dimensionally stable, grid-like front element (F) connected to an anchoring tie (ZA) which is also made of a net or grid-like flat material and extends into the cell filling material. The grid-like front element (F) is also connected to an anchoring prop (ZV) which ensures the predetermined front inclination and front position of the construction. The anchoring prop (ZV) for the individual front elements has at least one elongated anchoring member (AS) with one end connected to a front element (FG) and another end that extends into the filling material. The cellular construction is characterised in that traction forces are transmitted only through the flat material (F) in the area of an anchoring prop (ZV), between the connection point (K1) of the anchoring tie flat material (F) to the anchoring prop (ZV) on the one hand and the connection point (K2) of said flat material (F) to the front element (FG) on the other hand.

Description

Cell structure, in particular a support or soundproof structure that can be landscaped, and method for its production.

The invention relates to a cell structure, in particular a support or soundproofing structure that can be planted with green, stone or bulk material, in particular in layer-shaped cells, the cells being at least partially made of flexible, liquid-permeable and rot-resistant, in particular net or grid-shaped flat material are limited and have at least one dimensionally stable, lattice-shaped front element, which is connected to a tie anchoring which also has a mesh or lattice-shaped flat material and extends into the cell filling, as well as a support anchoring which ensures the predetermined front inclination and front position of the building, the support anchoring for the individual front elements has at least one elongated anchor member which is connected on the one hand to a front element and on the other hand extends into the filler material area. The subject matter of the invention also includes prefabricated components or assemblies and a manufacturing method for structures or components or assemblies.

A building of the type mentioned is known from EP-A-0574233 AI. There, the support anchoring consists of a triangular frame which is closed when installed, one of the rod elements forming this frame being arranged on the cell floor and connected at its front end to the lower edge of an associated front element and at its rear end by a force-locking element to the flexible flat material of the tension anchor is. The consequence of this is that the front section of this flat material is relieved of stress by the parallel connection of the stiff, bottom-side frame rod of the tension anchor and can only participate to a reduced extent in the overall transmission of traction. Another consequence of this is one

CONFIRMATION COPY Concentration of the traction on the lower edge of the front element on the connection point there with the triangular frame. This means an increased local stress and the possibility of undesired deformation of the generally lattice-shaped and therefore less rigid and rigid material of the front element.

In contrast, the object of the invention is to create a cell structure of the type mentioned at the outset, which is characterized by improved strength and dimensional stability and, moreover, by reduced material and production expenditure. The solution to this problem according to the invention is determined by the entirety of the features of patent claim 1. These features enable a largely uniform load distribution in the area of the lower front edge of the element, both within the flat tension material itself and in the material of the front element, the tensile rigidity of this Flat material can be optimized by appropriate design and adapted to the respective load conditions, in particular such as a grid or mesh, and material selection.

An essential and particularly advantageous development of this solution is determined by the features of claim 2. These allow, in particular, a sufficiently uniform support and load distribution even in the middle and upper region of the front element height, where in general a connection of additional flat sheet material is undesirable for cost reasons alone. Such support anchoring with rod-shaped, rod-shaped anchor members connected at the rear end only to the tension anchor flat material located on the cell floor introduces the support forces absorbed by the connection to the front element into the tension anchor where their flat material is already in strong frictional engagement with the load-bearing backfill, so that stress concentrations can also be kept low here. Such constructions according to the invention are further characterized by simple design and low material and manufacturing costs. A particularly important and advantageous further development of the invention is determined by the features of claims 18 and 19. This results in an equally advantageous simple and cost-effective connection structure on the tie rod, which is also optimal in terms of load distribution.

Further features and advantages of the invention are explained below with reference to the exemplary embodiments shown schematically in the drawings.

Fig.l shows a perspective partial sectional view of a support structure or soundproofing structure designed as a cell structure, which can be planted with greenery, filled with rock or fill material, which is arranged in cells Z. The cells are essentially delimited by flexible and liquid-permeable, mesh or lattice-shaped flat material F of a tension anchor ZA and by a comparatively rigid, lattice-shaped front element FG or several of these. This flat material is connected in the area K2 to the lower edge of the front element and extends backwards along the cell bottom into the filling material EG. Furthermore, the predetermined front inclination and front position of the support anchor ZV securing the front elements is provided, which has at least one elongated anchor element AS for the individual front elements, which is connected on the one hand to a front element FG and on the other hand extends into the filler material area.

In the example, the anchor links AS are designed as individual rods with end-to-end connecting means to the front element (FG) or to the tension anchor (ZA). They have at least one hook-shaped or eyelet-shaped section which can be positively hooked into a grid-shaped front element or a force transmission element, preferably at both end sections. Two hook-shaped or eyelet-shaped suspension sections that are angled at least approximately at right angles to one another about a rod axis are particularly expedient. An important further development of the invention provides that for a positive connection between a rod-shaped element (AS, AS1, AG1, AG2) of the support anchor (ZV) and the flat material (F) of the tension anchor (ZA) at least one transmission element (UE) is included a plurality of projections and recesses facing the flat material or recesses or gaps and elevations is provided for producing positive locking. A dimensionally stable latticework, in particular a section of a structural steel or geogrid or a corresponding perforated plate, is preferably used for this.

For the connection between the tension anchor and the front element in the example according to Fig. 1 it is provided that the front area of the flat material (F) extends beyond the lower edge of the front element (FG) and that this lower edge extends through the flat material (F) and transmits tensile forces of the flat material having. In particular, it has proven to be expedient for the front elements (FG) of at least two cells (Z) lying one above the other to be arranged with their upper and lower edges overlapping one another. The construction is designed in such a way that an overhead, grid-shaped front element with protruding lattice bar ends engages behind the front element arranged below in the region of its upper edge and, if necessary, passes through flat material (F) located there.

Figures 2 and 3 show the construction details of the above example in an enlarged view.

4 shows in perspective the uppermost stage of a cell structure of the type described above in a view from behind of an elongated front element FG with an adjacent cell floor. The following essential further training features of the invention can be seen: A front element (FG) is assigned a plurality of rod-shaped support anchoring members, which are only connected to the flat material (F) of the tension anchor (ZA) and the front element (FG), namely at different height and / or side angles the row base level or the wall front level. An arrangement of the support anchoring members diverging from the back wall of the wall to the wall front has proven to be particularly advantageous in many cases. The support anchoring (ZV1) shown here comprises in a substantial further development a plurality of rod-shaped or angular anchoring elements with a common transmission element (UE). This contributes to both optimal stability and cost reduction. Furthermore, a lattice-shaped transmission element (UE) with essentially square or rectangular lattice openings is provided, with which the rod-shaped support anchoring members are connected in the corner region of a lattice opening.

The example also shows, as an essential feature, a support anchorage with a multi-arm angle strut (WS1), which consists of two rod-shaped anchor elements AG1, which are arranged at an angle to one another and are connected to the front element (FG) in the region of the angle apex (S). The latter are only connected to the flat material (F) of the tension anchor (ZA) in the area of their free ends. There is also a multi-arm angled strut (WS2), which consists of two rod-shaped anchors arranged at an angle to each other and connected to a front element (FG) in the area of the angled apex (S), of which a first anchoring member (AGl) in the area of its free one End is only connected to the flat material (F) of the tension anchor (ZA), whereas a second anchor member (AG2) extends along the front element. Then there is a further variant, namely a multi-arm angled strut (WS3), again with two rod-shaped anchors (AGl) which are arranged at an angle to each other and in the area of the angled vertex (S) with the flat material (F) of the tension anchor (ZA) , on the other hand on the front element (FG) at a distance from its lower edge, in particular in the middle to upper area of the front element height, are connected. These designs allow the support effect to be optimized in various respects, and with remarkably little effort. In particular during assembly, additional trestles can optionally be used for the front elements, which have at least three rod elements which are preferably connected in one piece and arranged in the form of a three-legged or multi-legged structure.

To rationalize the construction of buildings, it can be important to use greening elements (BE) prefabricated outside the construction site or in situ for the front of the cell structure. Such an element, as shown in FIG. 2 and in detail in FIG. 5, comprises flexible and liquid-permeable greening flat material (FB) with at least one first section (AI) with plant seeds that is adapted to the front height of a building cell (Z) and, if necessary, with growth promotion means and with at least one second section (A2) which adjoins or overlaps the first section and which is connected to it by means of static friction or adhesive bonding, for the transmission of shear force between superimposed building cells or for the transmission of tensile force to anchor members and / or building front elements. Such an element can preferably be produced in such a way that the greening section intended for contact with the inside of a front element (FG) is applied by sprinkling or spraying on seeds from a soft, flexible and liquid-permeable sheet of flat material which is spread out in situ on a flat surface , if necessary then a powdery agent for water retention and moistening. This is followed by the application of a vegetation fleece and fastening it by gluing. According to the invention, it is also considered with special advantages to extend the prefabrication to the front element, including a greening element, as defined in claim 25. An essential concept of a method variant according to the invention for building construction is that support or anchoring elements are used on the inside of a front grating element provided with flexible flat material and before insertion and compaction of the earth or rock filling, and with at least one hook or eye section while breaking through the flat material on the front -Grid element can be hung. This results in a particularly efficient production. In detail, a manufacturing method according to the invention can be designed as follows with reference to the illustration in FIG. 1:

a) Creation of a foundation FU, which engages under at least the front floor plan section of the wall, as well as a planum extending backwards over the intended anchoring depth for the construction of the lowest wall step; b) Attaching a flat sheet of tension anchoring material to the formation and inserting and, if necessary, provisionally holding a substantially flat, dimensionally stable grille front element, which corresponds in its surface dimensions to a step height and the wall width or width of a predetermined wall section, in an upright position and with it Lower edge in a position corresponding to the wall front; c) Spreading and applying and, if necessary, fixing the front part of the tension anchor flat material web on the front element and, if necessary, pulling out the flat material front edge over the lower edge of the front element; d) Installation of support anchors or trestles between the front part of the flat material section spread out on the cell floor on the one hand and the inside of the front element covered with flat material on the other hand, if necessary with local puncturing of the flat material and more precise alignment of the front element, in such a way that a definite mounting of the same is given ; e) Production of a new formation by filling the building cell with earth, stone or bulk material and compacting up to the front element upper edge and production of the building cell following upwards according to process steps b) to d), the new front element with its lower edge on the upper edge of the underlying front element attached, in particular behind it is pushed into the filling material.

Further variants of the invention, which can be realized in particular in addition or in conjunction with other features of the invention, result from the following explanation with reference to FIGS. 6 to 13.

FIG. 6 shows a building with cells Z lying one above the other, which contain an earth or rock filling EG and have a casing made of flexible, liquid-permeable and rot-resistant flat material F. Within an exposed outer surface inclined to the horizontal, the cells Z are provided with a dimensionally stable front grating element FG, which is designed as a separate component that extends at least approximately only in one plane. Furthermore, the front grating elements are provided in a predetermined front inclination and front position securing tie anchors ZV, which engage on the one hand on the front grating elements and on the other hand on flexible tie rods ZA extending into the earth or rock filling EG. Each tension anchor comprises at least one first connecting strut AS1 engaging in the area of the upper edge of the associated front grating element and / or at least one second connecting strut AS2 engaging in the area of the lower edge of the front grating element, which struts extend into the earth or rock filling with at least one Tie rod ZA is connected. This results in a simple way reliable securing of the front element not only against the essentially horizontally acting earth pressure, but also against tilting moments as a result of irregular and alternating forces during filling compaction and against traffic loads. In the course of a longer period of inactivity of the building, these loads can increasingly be borne by the rooting in the front area of the cells.

As the examples according to FIG. 6 and FIG. 7 show, two strut or anchoring elements AS1, AS2 arranged at an angle to one another are provided to achieve a highly stable, statically determined support. If necessary, the tie rods can advantageously also be designed to act directly on the front grille element, regardless of strut elements. Furthermore, in some cases, two strut or anchoring elements arranged at an angle to one another can advantageously be arranged at least approximately in a vertical plane.

As can also be seen from FIG. 6, the upper strut or anchoring element AS1 is hooked to a crossbar Q of the front grating element with a hook-shaped or eyelet-shaped section H1, which can in particular be designed in a D-shaped manner. On the other hand, the element AS1 is hooked with a hook-shaped, simply angled H2 in an anchor ZA extending into the earth or stone filling. The same also applies to the rear angular section H2 of the lower element AS2, while a front hook section H3 of the latter engages around the lower edge of the front grating element and thus supports it against earth pressure forces. 6 shows an angular support bracket SB inserted behind the front grille element FG, for supporting the same during assembly. A section H4 of the support bracket SB, which is angled downward and engages in the cell Z arranged underneath, secures it against displacement during compression.

In a deviation from FIG. 6, FIG. 7 shows a support bracket SB1 inserted behind the front grating element FG in the form of a triangular rod structure. The trestle also has one here Function as a face or anchoring element with a front hook section H5 for supporting the lower edge of the front grating element and with a rear hook section H6, which serves for load-bearing thrust anchoring on the cell underneath.

8 shows a further development of a support frame SB2, which is provided for inserting a front grating element FG and thus can secure the position of the front grating element without hooking elements. Before compression, this front grid element is e.g. secured by simple wire loops on the trestle. Angled hook sections H7 are used for tension and shear anchoring on the cell Z underneath.

9 and 10, the latter a simplified plan view oriented at right angles with respect to FIG. 9, show strut or anchoring elements AS1, AS2 with two hook-shaped or eyelet-shaped suspension sections H8, H9, which are angled at least approximately at right angles to one another about a rod axis. These sections can advantageously be U-shaped or D-shaped, the upper section H8 is designed as a U-bracket angled transversely to the associated rod axis and, as a result, tensile and compressive forces can be used to form-fitly secure the front grille element. The lower U-section H9 can, due to its indicated in FIG. 9, include an upright rod section of the front grille element in an angular plane perpendicular to the front plane corresponding to the extending bracket shape, which offers advantages during assembly.

FIGS. 11 and 12 show with their upper and lower edges overlapping front grid elements FG each of two cells Z lying one above the other. This results in an additional horizontal securing in a particularly simple manner. The overhead front grating element with protruding grating rod ends is preferably designed to engage behind the front grating element arranged below in the region of its upper edge. Given- if the protruding rod ends reach through the flexible flat material located there. Furthermore, in the area of their upper edge and / or lower edge, these front grid elements can have a curved, or angled section that preferably projects toward the interior of an adjacent cell.

Fig. 13 shows a prefabricated, liquid-permeable and flexible flat material element for the front of a plantable cell structure with earth or stone filling, which can be used with advantage in particular for structures of this type according to the invention, possibly also for other types of plantable structures. Here is a first section AI adapted to the front height of a building cell Z with plant seeds and, if appropriate, with growth promoters and at least one second section A2 adjoining the first section for the pushing or. Tractive force transmission between superposed building cells or anchoring elements is provided. Such an element enables particularly efficient work in the manufacture of the building.

Claims

P a t e n t a n s r u c h e

Cell structure, in particular a support or soundproofing structure that can be planted with green, filled with earth, stone or bulk material (EG), in particular in layer-shaped cells (Z), the cells at least partially by flexible, liquid-permeable, in particular mesh or grid-shaped, flat material (F) are limited and have at least one rigid, lattice-shaped front element (FG) that is connected to a tie anchor (ZA) that also has a mesh or lattice-shaped flat material and extends into the cell filling, as well as a support anchor (ZV) that secures the specified front inclination and front position of the building is, the support anchor (ZV) for the individual front elements has at least one elongated anchor member (AS) which is connected on the one hand to a front element (FG) and on the other hand extends into the filler material area, characterized in that in each case in the area of a support anchor (ZV ) between ischen of the connection point (Kl) of the tension anchoring flat material (F) with the support anchoring (ZV) on the one hand and the connection point (K2) of this flat material (F) with the front element (FG) on the other hand, a tensile force transmission is essentially only provided by the flat material (F) is.

Building according to claim 1, characterized in that at least one anchor member (AS) of the support anchor (ZV) on the filler material side is only connected to the flat material (F) of the tension anchor (ZA) extending in the filler material by frictional engagement, in particular also by positive engagement. Structure according to claim 1 or 2, characterized by at least one support anchorage with at least one anchor member (AS, AS1) which is designed as a single rod with end-side connecting means to the front element (FG) or to the train anchorage (ZA).

Structure according to one of the preceding claims, characterized by at least one support anchoring with at least one multi-arm angle strut (WS1), which consists of at least two preferably rod-shaped anchors arranged at an angle to one another and connected to a front element (FG) in the region of the angled apex (S). AGl) exists, which are connected in the area of their free ends only with the flat material (F) of the tension anchor (ZA).

Structure according to one of the preceding claims, characterized by at least one support anchoring with at least one multi-armed angle strut (WS2) which consists of at least two preferably rod-shaped anchoring members (arranged at an angle to one another and connected to a front element (FG) in the region of the angled vertex (S). AGl, AG2), of which a first anchor member (AGl) is connected in the area of its free end only to the flat material (F) of the tension anchor (ZA), whereas a second anchor member (AG2) extends along the front element.

Structure according to one of the preceding claims, characterized by at least one support anchoring with at least one multi-armed angle strut (WS3) which consists of at least two preferably rod-shaped, arranged at an angle to one another and in the region of the angle apex (S) with the flat material (F) of the tension anchoring ( ZA) connected anchor members (AGl), which on the other hand are connected to at least one front element (FG) at a distance from its lower edge, in particular in the middle to upper region of the front element height.

7. Structure according to one of the preceding claims, characterized in that a respective front element (FG) is assigned a plurality of rod-shaped support anchoring members which are only connected to the flat material (F) of the tension anchor (ZA) and the front element (FG).

8. Building according to claim 7, characterized in that a plurality of rod-shaped, at different height and / or side angles with respect to a cell base plane or the wall front plane arranged support anchoring members is provided.

9. The structure according to claim 8, characterized in that a plurality of support anchoring members arranged diverging in the direction from the wall backfill to the wall front is provided.

10. Building according to one of the preceding claims, characterized in that for a positive connection between a rod-shaped element (AS, ASl, AGl, AG2) of the support anchor (ZV) and the flat material (F) of the tension anchor (ZA) at least one transmission element (UE ) is provided with a plurality of projections and recesses or recesses or gaps and elevations facing the flat material for producing a positive connection.

11. Structure according to claim 10, characterized in that the transmission element (UE) has a dimensionally stable lattice work, in particular a section of a structural steel or geogrid or a corresponding perforated plate.

12. Structure according to claims 10 or 11, characterized in that a support anchor (ZV1) has a plurality of rod-shaped or angular anchor elements with a common transmission element (UE).

13. Building according to one of claims 10 to 12, characterized by at least one lattice-shaped transmission element (UE) with essentially square or rectangular lattice openings, with which at least one rod-shaped support anchoring member is connected in the corner region of a lattice opening.

14. Building according to one of the preceding claims, characterized by an additional support anchoring with at least one in the region of the upper edge of a front element (FG) engaging first anchor member (ASl) and with at least one in the region of the lower edge of the front element (FG) engaging second anchor member (AS2).

15. Building according to one of the preceding claims, characterized by at least one at least sectionally rod-shaped anchoring element with at least one hook-shaped or eyelet-shaped section which can be positively suspended in a grid-shaped front element.

16. The structure according to claim 15, characterized by at least one rod-shaped anchoring element with hook-shaped or eyelet-shaped elements located on both end sections, which can be hooked into a grid-shaped front element on the one hand, and into the grid-shaped flat material (F) of the tension anchor (ZA) or a similar transmission element (UE) on the other hand Sections.

17. Building according to claim 15 or 16, characterized by anchor members with at least two at least approximately at right angles to one another about a rod axis angled, hook or eye-shaped suspension sections.

8. Cell structure, in particular support or plantable

Soundproofing structure, with earth, stone or bulk material filling (EG), arranged in particularly layer-shaped cells (Z), the cells being at least partially delimited by flexible, liquid-permeable, in particular mesh or lattice-shaped flat material (F) and at least one rigid, lattice-shaped Have front element (FG), which is connected to a web anchor (ZA), which also has a mesh or lattice-shaped flat material and extends into the cell filling, and to a support anchor (ZV) that secures the specified front inclination and front position of the building, the support anchor (ZV) for the individual front elements has at least one elongated anchor member (AS), which is connected on the one hand to a front element (FG) and on the other hand extends into the filler material area, in particular the structure according to one of the preceding claims, characterized in that the tension anchor (ZA) has at least one sic h from the wall backfilling along the cell floor to the lower edge of a front element (FG) and with this lower edge with respect to tensile forces connected flat material web (F).

19. The structure according to claim 18, characterized in that the front region of the flat material (F) extends beyond the lower edge of the front element (FG) and that this lower edge has projections which penetrate the flat material (F) and transmit tensile forces of the flat material.

20. Building according to one of the preceding claims, characterized in that the front elements (FG) of at least two superimposed cells (Z) are arranged to overlap one another with their upper and lower edges.

21. Building according to claim 20, characterized in that in each case an overhead, grid-shaped front element with protruding lattice rod ends engages behind the front element arranged in the region of its upper edge and, if appropriate, passes through flat material (F) located there.

22. The structure according to claim 21, characterized in that the front elements (FG) in the region of their upper edge and / or lower edge have a preferably curved, angled or protruding section towards the interior of an adjacent cell (Z).

23. Support frame for the front elements of a building according to one of the preceding claims, characterized by at least three rod elements which are preferably connected to one another in one piece and are arranged in the form of a three-legged or multi-legged structure.

24. Prefabricated greening element (BE) for the front of a cell structure with earth, stone or bulk material filling, in particular for a structure according to one of claims 1 to 21, characterized by flexible and liquid-permeable greening flat material (FB) with at least one, the front height a first section (AI) adapted to a building cell (Z) with plant seeds and, where appropriate, with growth promoters, and by at least one second section (A2) which adjoins or overlaps the first section and is connected to it by means of static friction or adhesive bonding, for the transmission of shear force between building cells lying one above the other or for the transmission of tensile force to anchor links and / or structural front elements.

25. Prefabricated lattice front element (FG) for greenable cell structures with earth, stone or bulk material filling, in particular for a structure according to one of claims 1 to 21, characterized by a flexible and liquid-permeable greening element (BE), which is at least one of the height of Front element adapted and connected to the rear of the same greening flat material section (AI) as well as at least one connecting flat material section (A2) which adjoins or overlaps and is preferably connected by adhesive bonding for the transmission of shear force between superimposed building cells or for the Tractive power transmission to anchor links and / or structural front elements includes.

26. A method for producing a building according to one of claims 1 to 22, characterized in that supporting or anchoring elements are used on the inside of a front grating element provided with flexible flat material and with at least one hook or before the introduction and compaction of the earth or stone filling eyelet section can be hooked into the front grille element while breaking through the flat material.

27. A method for producing a support or soundproofing wall that can be planted according to one of claims 1 to 22, in particular also according to claim 26, characterized by the following method steps:

a) Creation of a foundation that engages under at least the front floor plan section of the wall, as well as a planum extending backwards over the intended anchoring depth for the construction of the lowest wall step; b) attaching a flat sheet of tension anchoring material to the level and inserting and, if necessary, provisionally holding a substantially flat, dimensionally stable grille front element, the surface dimensions of which correspond to a step height and the wall width or width of a predetermined wall section, in an upright position and with it Lower edge in a position corresponding to the wall front;

c) Spreading and placing and, if necessary, fixing the front part of the tension anchor flat material web on the front element and, if appropriate, pulling out the flat material front edge over the lower edge of the front element;

d) Installation of support anchors or trestles between the front part of the flat material section spread out on the cell floor on the one hand and the inside of the front element covered with flat material on the other hand, if necessary with local puncturing of the flat material and more precise alignment of the front element, in such a way that a definitive mounting of the same is given ;

e) Production of a new formation by filling the building cell with earth, stone or bulk material and compacting up to the front element upper edge and production of the building cell following upwards according to process steps b) to d), the new front element with its lower edge on the upper edge of the underlying front element attached, in particular behind it is pushed into the filling material.

28. The method according to claim 27, characterized in that the greening section provided for contacting the inside of a front element (FG) is made in situ from a soft, flexible and liquid-permeable sheet of material spread out on a flat surface by sprinkling or spraying on seeds, optionally subsequently applying a powdery agent for water retention and moistening, then applying a vegetation fleece and fastening the same is produced by gluing.

29. The method according to claim 27, characterized by the

Use of a prefabricated greening element according to claim 24 and / or a prefabricated grille front element according to claim 25.