EP1217127B1 - Retaining wall assembly of prefabricated elements - Google Patents

Abstract

The construction kit, for the prefabricated components of a supporting wall, has angled connecting sections (9) especially of concrete, in addition to the conventional mold box structure. Open grooves (14,15) are at different sides of the angle legs (11,12) to take the mold structure inserts. One angle leg has a smooth outer surface for the end of the support wall.

Description

The invention relates to a kit for a prefabricated retaining wall with one above the other in the position of use, approximately cuboid, in particular open at the top and bottom Boxes, preferably made of concrete, connected to at least two parallel ones Sidewalls each have at least one parallel to the front wall have extending groove into which a in the window between adjacent to each other in the use position arranged boxes used, in particular plate-like Plug element fits, the boxes possibly also on their Top and / or bottom at least one each to the front wall have parallel groove into which the plug element in the assembly position fits.

Such a kit for a prefabricated retaining wall or a retaining wall built from such a kit is known from DE 32 36 739 C2 and has proven itself. The one there boxes made of concrete also have on their top and / or on their underside extending over the side walls Grooves while the front and back panels are both on the top as well as smooth on the bottom.

Such a prefabricated retaining wall can with a small Number of individual precast elements, namely those mentioned Boxes and plug-in elements, maintain high stability. There are also possible variations. But it is as disruptive to see that at the end of such a retaining wall arranged on the side wall of the last box on the outside Groove or grooves remain visible.

Furthermore, there is often the problem that such a prefabricated retaining wall what should happen to the Means and finished parts according to DE 32 36 739 C2 not possible is. At most two can form an angle to each other independent retaining walls are built, but then have no corner connection.

In practice there is already one with three side walls Corner piece has become known as a prefabricated component, which two has side walls arranged at right angles to one another, which have open grooves on the outside, in which the plug-in elements fit, but they are at an angle Side walls connected by an inclined wall, so that a beveled Corner arises that often meet the requirements of the Aesthetics are not enough. It also has one with three Pre-fabricated part provided with a considerable weight.

There is therefore the task of building a kit of the type defined at the beginning To create a way that is as sharp as possible Corner on a corner retaining wall and / or a smooth one Completion of the end of a retaining wall can be formed.

To solve this problem it is provided that to the kit one or more angular connection elements, each with two legs arranged at an angle to each other, whose one leg at least one vertical to the angular space or groove parallel to the angular edge and its other leg at least one on the outside facing away from the angular space arranged groove, the angular space between them both legs are open.

In this way, a corner piece provided with three side walls avoided. Nevertheless, with such a connector a retaining wall continued around a corner and also in the corner area can be connected, but it can also with this connector achieved a smooth finish on the end face of a retaining wall become.

Such a connection element, in particular made of concrete, can namely with its leg on the outside of the groove the face of a retaining wall is set and with an adjacent one Box are connected with a plug element, wherein this leg simultaneously with the back one in the right Align further rectangular cuboid boxes can, the one belonging to a right angle to the first retaining wall heard another section of retaining wall. The grooved Sidewall of the first box forms with the open one Angular space of the connecting element is initially approximately U-shaped Opening that is closed with another plug element can, which on the one hand in a direction to the angular space Groove of the connecting element and on the other hand in a parallel to it Engages groove of the first further box. Thus it results one with the outside of the standing at an angle Retaining wall looking sharp-edged corner.

It is useful that the grooves of the connecting elements in Use position of that of an adjacent concrete box in one Opposite plane that is parallel to the surface of the Support wall runs and in which a plate-shaped plug-in element can be arranged in the assembly position.

The connection or connecting element according to the invention can advantageously also as the end of an end Retaining wall can be used by facing it with the outside a grooved leg in alignment with the back of this Retaining wall is arranged while facing towards the front Plug element the angular space in alignment with the front wall of the adjacent concrete box closes, so that the leg, the only towards the inside of the angular space with an or is provided with several grooves at the end of such a retaining wall closes smoothly on the outside, i.e. a smooth end face this retaining wall forms.

It is useful if the number of grooves on the two Legs of the number of grooves on the side walls of the boxes corresponds and the grooves have the same dimensions. Consequently can the plug elements each parallel to the front wall of the Retaining wall can be inserted in such grooves.

The height and in particular the length of the legs of the Connection element can correspond approximately to that of the cuboid boxes. This allows retaining walls with a corner or face Completion in any amount by any number of stacked layers of boxes and connection elements be erected.

A further practical embodiment of the kit can be found in it exist that for different bends, so opposite a retaining wall section bends after one or the other other side different connection elements, namely right and left connector elements are provided. So it belongs in in this case mirror-symmetrical to the kit Connection elements to choose from a retaining wall section an angled section forward or backward to be able to connect.

From DE 32 36 739 C2 it is already known that the vertical Grooved side walls also on their top, if necessary also at the bottom, can have grooves that in these lateral grooves open or pass over.

An embodiment of the kit according to the invention can accordingly provide that the leg of the connecting elements on which the groove or grooves on the outside facing away from the angular space is or are arranged on its top and / or bottom has at least one matching and continuing groove and that which has the groove or grooves open to the angular space Legs especially smooth on its top and bottom is. Thus, the next higher level of boxes and Connection elements to lie on such a connection element coming box with its outside flush with the angle leg be put on, one on the bottom without Grooves trained box then with this angle leg forms a closed wall section without horizontal openings.

The two legs of the connecting element can be in the right or arranged at an angle other than 90 ° his. The most common case is a connector with a right angle between his two legs, so that Retaining walls with two sections arranged at right angles can be formed. But it is with connecting elements other angles between their legs are also possible, retaining walls to create the individual sections under another, often at an obtuse angle to each other.

A practical design of the kit and in particular the connecting element may consist in that the or the the connection or angle elements belonging to the kit at the transition their two legs, especially in the angular space, reinforcement, particularly in the form of a thickening of material exhibit. As a result, these connection elements can be increased Have strength over those without reinforcement, though not designed as a closed box with three walls are.

Another advantageous embodiment of the kit and in particular the connection element or elements can consist of that this connection element is adjacent to an angular space open groove a material thickening directed into the angular space, Has widening or a projection, the in Use position upper end with the upper narrow side this leg is particularly flush.

The material thickening mentioned above can therefore be used for angular space be open groove adjacent and thereby in the position of use as a support surface for an attached additional connection element or other component of the kit, if its Outside surface set back compared to that of the connecting element should be on which this further component of the kit is put on. By appropriate arrangement of such Connection elements with material thickenings protruding into the angular space So retaining walls can be built, which despite the essentially vertical courses of the outer surfaces of the individual Components of the kit inclined from bottom to top are inclined backwards and with a relatively steep Angle.

It is useful if the thickening on the free End of the leg of the connecting element facing away from the Groove is arranged and if the limitation of the groove in particular passes into the lateral limitation of the thickening. tries have shown that it is sufficient if the corresponding leg near its free end an open one to the inside of the angular space Has groove for inserting a plug element and this Nut adjacent or immediately adjacent to the Thickening with its upper support surface for a patch another part of the kit is arranged. Thus, the Groove facing side surface of this thickening the plug element support additionally.

The thickening can expediently as a rib or as widened to the inside edge of the widening Be formed leg and in particular on the Overall, vertical dimension of the leg in the position of use pass. This can also help to brace this entire contribute angular connector and introduced into it Pass forces downwards well.

The lower end of the thickening can lead to the interior of the angular space be widened as a foot and especially up to other leg of the angular connecting element are sufficient. This will improve the overall stability of the connectors and also the introduction of support forces downwards or in improved the soil.

Overall results from a single, possibly in several variations and in particular usually in larger ones The number of additional prefabricated components envisaged is considerable Enlargement of the possible variations from DE 32 36 739 C2 known retaining wall. In an advantageous manner this additional precast due to its only two Leg shape having a relatively low weight, which facilitates handling when erecting such a retaining wall.

Fig. 1

eine aus einem erfindungsgemäßen Bausatz von Kästen, Steckelementen und winkelförmigen Anschlußelementen in drei übereinander angeordneten und dabei teilweise gegeneinander versetzten Lagen aufgebaute Stützmauer in einem Eckbereich und zwar in schaubildlicher Darstellung,

Fig.2

ein winkelförmiges Anschlußelement mit zwei im rechten Winkel zueinander angeordneten Schenkeln, deren einer zu dem Winkelraum hin offene vertikale Nuten hat und nach außen glatt ist, wobei der andere Schenkel an dem in der Zeichnung hinteren Ende dieses ersten Schenkels abgeht,

Fig.3

eine der Fig.2 entsprechende schaubildliche Darstellung eines weiteren, zu dem Bausatz gehörenden winkelförmigen Anschlußelements, bei welchem der zweite Schenkel von dem die Nuten auf der Seite des Winkelraums aufweisenden Winkelschenkel an dem anderen, in der Zeichnung vorderen Ende abgeht,

Fig.4

eine Draufsicht eines aus Elementen des Bausatzes aufgebauten Eckbereiches, wobei ein winkelförmiges Anschlußelement gemäß Fig.3 vorgesehen ist,

Fig.5

eine der Fig.4 entsprechende Darstellung, bei welcher die Abwinklung der Stützmauer gegenüber der nach Fig.4 entgegengesetzt gerichtet ist und ein winkelförmiges Anschlußelement gemäß Fig.2 zu diesem Zweck vorgesehen ist,

Fig.6

eine Draufsicht zweier zu dem Bausatz gehörender Kästen mit Nuten, in die ein sie verbindendes und in ihrem Bereich in Abstand überbrückendes Steckelement eingefügt ist,

Fig.7

eine der Darstellung der Fig.4 bis 6 entsprechende Darstellung des Endes einer Stützmauer mit einem Kasten und einem winkelförmigen Anschlußelement, das mit einem Steckelement zusammen einen stirnseitigen Abschluß bildet,

Fig.8

eine Draufsicht eines abgewandelten winkelförmigen Anschlußelements, welches anstelle der oder zusätzlich zu den winkelförmigen Anschlußelementen gemäß Fig.2 und 3 zu dem Bausatz gehören kann und

Fig.9

ein winkelförmiges Anschlußelement gemäß Fig.8, bei welchem jedoch die beiden Schenkel spiegelsymmetrisch gegenüber denen der Fig.8 angeordnet sind,

Fig.10

eine Seitenansicht des Anschlußelements gemäß Fig.9 mit Blick auf die Stirnseite des eine zum Winkelraum offene Nut aufweisenden, auf seiner Außenseite glatten Winkelschenkels,

Fig.11

eine Draufsicht einer schematisierten Darstellung einer aus dem Bausatz errichteten FertigteilStützmauer, wobei eine obere Lage gegenüber einer darunter befindlichen Lage etwas zurückversetzt ist, so daß eine im ganzen von unten nach oben etwas schräg ansteigende Stützmauer gebildet ist.

An embodiment of a kit according to the invention is described below with reference to the drawing. It shows in a partially schematic representation:

Fig. 1

a retaining wall constructed in a corner area from a kit according to the invention of boxes, plug-in elements and angular connecting elements in three layers arranged one above the other and in some cases offset against one another, in a diagrammatic representation,

Fig.2

an angular connecting element with two legs arranged at right angles to one another, one of which has vertical grooves which are open towards the angular space and is smooth on the outside, the other leg going off at the rear end of this first leg in the drawing,

Figure 3

2 shows a diagrammatic representation of another angular connecting element belonging to the kit, in which the second leg extends from the angular leg having the grooves on the side of the angular space at the other end in the drawing, in the drawing,

Figure 4

3 shows a plan view of a corner area constructed from elements of the kit, an angular connecting element according to FIG. 3 being provided,

Figure 5

4 shows a representation corresponding to FIG. 4, in which the angling of the retaining wall is opposite to that according to FIG. 4 and an angular connecting element according to FIG. 2 is provided for this purpose,

Figure 6

2 shows a plan view of two boxes with grooves belonging to the kit, into which a plug-in element connecting them and bridging in their area is inserted,

Figure 7

4 to 6 corresponding representation of the end of a retaining wall with a box and an angular connecting element which together with a plug element forms an end closure,

Figure 8

a plan view of a modified angular connecting element, which may be part of the kit instead of or in addition to the angular connecting elements according to Figures 2 and 3

Figure 9

8 an angular connection element according to FIG. 8, in which, however, the two legs are arranged mirror-symmetrically with respect to those of FIG. 8,

Figure 10

9 shows a side view of the connection element according to FIG. 9 with a view of the end face of the angled leg, which has an open groove to the angular space and is smooth on the outside,

Figure 11

a plan view of a schematic representation of a prefabricated retaining wall erected from the kit, an upper layer being set back somewhat from an underlying layer, so that a retaining wall is formed which slopes somewhat obliquely from bottom to top.

A kit for one in Fig.1 or Fig.11 at least partially shown in a corner area and built from this kit Prefabricated retaining wall 1 - hereinafter also "retaining wall 1" called - points in the use position one above the other, approximately cuboid, in the exemplary embodiment up and down open, for example made of concrete boxes 2 on the two parallel side walls 3 each parallel to the front wall 4 and thus also to the rear wall 5, in the use position have vertical grooves 6. In each of these grooves 6 fits a plate-like plug-in element 7, the adjacent ones Boxes 2 have a distance in this position of use according to Figures 1 to 7 and 11 of this plug element 7 is bridged in each case.

In the exemplary embodiment, the boxes 2 also have an upper side in their side walls 3 to the front wall 4 and Rear wall 5 parallel grooves 8, in which the plug element 7 also in the assembly position, filling the groove 8 like the groove 6 fits. You can clearly see in the figures that the grooves 8 and the grooves 6 not only dimensioned the same, but also in matching levels are arranged, so merge.

This kit for the construction of the retaining wall 1 belong also angular connection elements 9 (Fig.2 and 9) and angular Connection elements 10 (Fig.3 and 8). These each point two at an angle, in the exemplary embodiment at right angles mutually arranged legs 11 and 12, wherein the leg 11 of the two connection elements 9 and 10 to the angular space this angular connector 9 or 10 towards an open vertical, or parallel to the angular edge 13 groove 14 (Fig.8 and 9) or more such grooves 14 (Fig.2 and 3) and the other legs 12 on the outside facing away from the angular space Has grooves 15, the shape, course and dimension correspond to the grooves 6 on the boxes 2. Here is the angular space between the two legs 11 and 12 open how to do it recognizes particularly well in FIGS. 2, 3, 8 and 9.

The number of grooves 14 and 15 on the two legs 11 and 12 of the angular connecting elements 9 and 10 according to Fig.2 and 3 corresponds to the number of grooves 6 on the side walls 3 of the Box 2 and all these grooves have the same dimensions.

Furthermore, it can be seen particularly well from FIGS. 1 and 11, that the height and length of the legs 11 and 12 of the Connection elements 9 and 10 of the side walls 3 and front walls 4 and rear walls 5 of the boxes 2 corresponds to a closed one Retaining wall 1 of almost any height by stacking all of these finished parts and elements of the kit can be erected.

Such a retaining wall 1 can therefore be erected by that concrete boxes 2 according to Figure 6 at a distance from each other in series arranged and connected with plate-shaped plug-in elements 7 become. In order to be able to form a corner, you can use the Corner area angular connecting elements 9 or 10 used be, either according to Fig.4 or according to Fig.5 with each boxes 2 arranged in a corner by means of such plug-in elements 7 linked and connected. When arranged one above the other Layers can be arranged according to arrangements in the corner area Fig. 4 and 5 in a suitable manner, where 1, boxes 2 lie vertically one above the other in every second layer, while the boxes of the liner opposite offset and the horizontal and vertical distance using Plug elements 7 is bridged.

For this offset of the different positions in the different The height ranges of a retaining wall 1 are different angular connecting elements 9 and 10 according to the figures 2 and 3 and according to FIGS. 8 and 9 so mirror-symmetrical shaped to each other. In addition, they allow different Bending directions of the respective retaining wall 1. Practical you could the connector 9 as the right and that View connector 10 as the left connector if one the angle leg 11 viewed from the angular space and from it assumes that in the first case the second leg 12 left and in the case of Fig. 3, the second leg 12 at the right end of this Leg 11 comes off.

In Figures 2 and 3 and 8 and 9 you can also see that each the leg 12 of the connecting elements 9 and 10, on which the grooves 15 on the outside facing away from the angular space are arranged, also matching on its top and has continuous grooves 16. The one open to the angular space On the other hand, legs 14 having grooves 14 are on their top, as well as smooth on the underside, i.e. without grooves. The other elements, namely boxes 2 and Legs 12 have no grooves on the underside.

Thus, at a next higher level of a retaining wall 1 the respective angular connector 9 or 10 also a box 2 with its outside flush with the angle leg 10 are placed, the one on the bottom without grooves trained box 2 with this angle leg 11 a forms a closed section without horizontal openings. in the In contrast, the right and left are exemplary embodiments Connection elements 9 and 10 stacked one above the other and touch yourself with the ends of your thighs 11 as you can see it clearly in Fig.1 recognizes.

The connection elements 9 and 10 can also be added to the kit corresponding, not shown in the drawings Connection elements belong, in which the angle leg in one angles other than 90 ° are arranged. In order to retaining walls 1 can be built, at an angle to each other trending sections other than a right Angle, for example an obtuse angle, if necessary but also include an acute angle.

In Figures 4, 5 and 7 it is also indicated that the to Kit belonging connecting or angle elements 9 and 10 the transition or on the inside of the angular edge 13, that is in the angular space, at the transition of her two legs 11 and 12 a reinforcement in the form of a material thickening 17 may have, whereby the connecting elements 9 and 10 have a higher Maintain strength without the inside Attachability of the plug elements 7 is hindered.

7 shows an advantageous application of an angular one Connection element 9 or 10 as a front end of a Retaining wall 1. The one with vertical grooves that are open to the outside 15 provided angle leg 12 runs in alignment Rear wall 4 of a box 2 and between the connection element 9 or 10 facing side wall 3 and the other angle leg 11, a plate-shaped plug element 7 is inserted. This results in one at the end facing away from the box 2 such retaining wall 1 has a smooth face, which of the Outside of the leg 11 is formed. The connector 9 or 10 can also be used as a conclusion at the end of such Retaining wall can be used, but its angular space is still in Use position is complete.

8 and 9 show that the angular Connection elements 9 and 10 adjacent to only one to the angular space open groove 14 a material thickening directed in the angular space 17a, which as a partial distribution or is formed as a projection. The top face this material thickening 17a is shown in FIG. 10 with the upper one Narrow side 11a of this material thickening 17a Leg 11 flush and thus forms a widened support surface for an attached additional connecting element 9 or 10 or another element of the kit for a retaining wall 1. This thickening 17a is found according to FIGS. 8 and 9 on the free end of the leg 11 of this connector 9 or 10 opposite side of the groove 14 closer to the center this leg 11 down. 8 and 9 show that the a limitation of the groove 14 in a lateral limitation of the Thickening 17a passes over. A plug element 7 can at least in some areas also bear against the thickening 17a.

Above all, however, it is made possible that, as shown in Fig.11 a higher position of the kit of the retaining wall on the top end of this thickening 17a is supported, itself if this top layer is opposite to the one below it to the rear is offset to one of optical and / or static Reasons to form inclined retaining wall 1.

In the exemplary embodiment, the thickening 17a is designed as a rib, however, it could also be as far as the inside edge the angular connecting elements 9 and 10 extended Spread of the leg 11 they be formed and to a certain extent pass into the material thickening 17 in order to to form an even larger upper support surface. Most importantly, runs they, as can be clearly seen in Fig. 10, over the entire in the use position vertical dimension of the leg 11. It can therefore transfer support forces downwards.

This possibility is further improved by the fact that the lower one End of the thickening 17a towards the interior of the angular space as a foot 18 is widened up to the other leg 12 of the Connection element 9 or 10 is sufficient. This will be at the bottom the connecting element 9 or 10 has a relatively large contact surface formed and also the connector significantly stiffened.

The retaining wall 1 or the one provided for its construction The kit of prefabricated parts enables one in its course sharp-edged corner, where the finished parts are also in Form a corner area with each other. The Kit in addition to boxes 2 and 7 plug-in elements angular Connection elements 9 and 10, in particular made of concrete, on their angle legs 11 and 12 on different sides have open grooves 14 and 15 into which the plug-in elements 7 fit. Since an angle leg is smooth on the outside, you can also smooth or groove-free front ends are formed on such retaining walls 1.

It should also be mentioned that the plug elements 7 in the receiving them Grooves can also have play, if necessary, too To be able to manufacture retaining walls with corner areas of 90 ° deviate, even if the legs of the connection elements 90 ° lock in.

Claims (12)

1. Construction assembly for a retaining wall (1) made of prefabricated units, having substantially cuboid boxes (2), preferably made of concrete, which are open at the top and bottom, in particular, arranged one above the other in the position of use, which comprise, on each of at least two parallel side walls (3), at least one groove (6) running parallel to the front wall (4), into which an in particular plate-shaped plug-in element (7) fits which is inserted in the window between boxes (2) disposed adjacent to one another and spaced apart in the position of use, the boxes (2) optionally also comprising on their top and/or underside at least one groove (8) parallel to the front wall (4), into which the plug-in element (7) fits in the assembled position, characterised in that the construction assembly comprises one or more angular connecting elements (9, 10) each having two legs (11, 12) arranged at an angle to one another, one leg (11) of which has at least one groove (14) which is vertical and open towards the angle space or parallel to the angle edge (13) while the other leg (12) has at least one groove (15) arranged on the outer side remote from the angle space, the angle space between the two legs (11, 12) being open.
2. Construction assembly according to claim 1, characterised in that in the position of use the grooves (14, 15) of the connecting elements (9, 10) are opposite those of an adjacent box (2) in a plane which extends parallel to the surface of the retaining wall (1).
3. Construction assembly according to claim 1 or 2, characterised in that the number of grooves (14, 15) on the two legs (11, 12) corresponds to the number of grooves (6) on the side walls (3) of the boxes (2) and in that the grooves (6, 14, 15) have the same dimensions.
4. Construction assembly according to one of claims 1 to 3, characterised in that the height and, in particular, the length of the legs (11, 12) of the connecting elements (9, 10) correspond substantially to those of the cuboid boxes (2).
5. Construction assembly according to one of claims 1 to 4, characterised in that for different angles different connecting elements (9, 10) are provided, namely right-handed connecting elements (10) and left-handed connecting elements (9), which are shaped, in particular, to be mirror-symmetrical to one another.
6. Construction assembly according to one of claims 1 to 5, characterised in that the leg (12) of the connecting elements (9, 10) on which the groove(s) (15) is (are) mounted on the outer side remote from the angle space has on its top and/or underside at least one groove (16) which fits it and forms a continuation of it and in that the leg (11) comprising the groove(s) (14) which is (are) open towards the angle space is (are) smooth, in particular, on its top and underside.
7. Construction assembly according to one of claims 1 to 6, characterised in that the two legs (11, 12) of the connecting element (9, 10) are arranged at right angles or at an angle other than 90° to one another.
8. Construction assembly according to one of claims 1 to 7, characterised in that the connecting or angle elements (9, 10) belonging to the construction assembly have a reinforcement, preferably in the form of a thickening of material (17), at the transition between their two legs (11, 12), particularly in the angle space.
9. Construction assembly according to one of claims 1 to 8, characterised in that the connecting element (9, 10) adjacent to a groove (14) which opens towards the angle space comprises a thickening of material (17a), a broadening or a projection directed into the angle space, the upper end face of which, in the position of use, is in particular flush with the upper narrow side (11a) of this leg (11).
10. Construction assembly according to one of claims 1 to 9, characterised in that the thickening (17a) is arranged on the side of the groove (14) remote from the free end of the leg (11) of the connecting element (9, 10) and in that the boundary of the groove (14) in particular merges into the lateral boundary of the thickening (17a).
11. Construction assembly according to one of claims 1 to 10, characterised in that the thickening (17a) is in the form of a rib or a broadening of the leg (11) on which it is provided, extending as far as the inner edge, and extends in particular over the entire vertical extent of the leg (11) in the position of use.
12. Construction assembly according to one of claims 1 to 1, characterised in that the low end of the thickening (17a) broadens out towards the interior of the angle space as a foot (18) and extends, in particular, as far as the other leg of the connecting element (9, 10).

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