EP2535463B1 - Modular pre-fabricated retaining wall, concrete retaining wall comprising same and method for erecting the retaining wall - Google Patents

Modular pre-fabricated retaining wall, concrete retaining wall comprising same and method for erecting the retaining wall Download PDF

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Publication number
EP2535463B1
EP2535463B1 EP11004956.6A EP11004956A EP2535463B1 EP 2535463 B1 EP2535463 B1 EP 2535463B1 EP 11004956 A EP11004956 A EP 11004956A EP 2535463 B1 EP2535463 B1 EP 2535463B1
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Prior art keywords
wall
elements
retaining
concrete
foundation
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German (de)
French (fr)
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EP2535463A1 (en
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Joachim Glatthaar
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2/8611—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers being embedded in at least one form leaf
    • E04B2/8617—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers being embedded in at least one form leaf with spacers being embedded in both form leaves

Definitions

  • the invention relates to a modular prefabricated support wall for placement on a concrete foundation, a retaining wall made of the elements of the precast support wall and a method for producing such a retaining wall, with at least one vertically arranged reinforced concrete tabular wall element for Erdabstützung and with at least one perpendicular to the wall element vertically arranged , a central cavity, filled with in-situ concrete, connectable with a connection reinforcement of the wall element wall support element made of reinforced concrete for removal of horizontal forces, wherein a plurality of such wall elements with their wall holding elements in the longitudinal direction are juxtaposed, the wall element at the two vertical edges of the flat side having angularly protruding connection reinforcement elements.
  • the present invention seeks to propose a way to create a support wall made of industrially prefabricated concrete components at the site quickly, easily and inexpensively.
  • the new prefabricated modular support wall has at least one vertically arranged reinforced concrete tabular wall element for ground support, with at least one vertically fillable central wall cavity filled with in-situ concrete and wall-mounted reinforced concrete wall support element for abrading horizontal forces.
  • the at least one wall element with the at least one wall holding element is configured for placement on a concrete foundation.
  • the wall element may be formed as a solid or hollow wall element and have different lengths and heights.
  • the lower edge of the wall element may be arranged at right angles and / or at a different angle to the side edges and extend in a straight line or stepped manner between the side edges of the wall element.
  • the upper edge can be arbitrarily shaped and arranged.
  • the wall holding element is adapted in height to the height dimension of the wall element. Its height is typically 30 to 40 cm less than the height of the wall element.
  • the length of the wall holding element is dependent on the height of the wall element, its width is preferably the same for all variants provided.
  • the wall holding element which has a cavity which can be filled with in-situ concrete, is preferably designed as a double-shell concrete hollow wall which is open at the top and whose shells are connected to one another by means of a reinforcement.
  • the wall elements have special strip-shaped connection areas for the wall holding elements. These can be provided at any position of the wall elements and extend in the vertical direction such that the wall holding elements can be attached at least down and up to such a wall element. Thus, a corresponding number of wall holding elements can be used to support a wall element.
  • the connection areas the wall elements may be arranged directly on the vertical edges of the wall elements or at a suitable distance therefrom.
  • the wall elements with their at least one wall-holding element can be aligned in the longitudinal direction, so that concrete retaining walls can be constructed using equal or different length wall elements of any desired length.
  • connection reinforcing elements projecting from the flat side.
  • the connection reinforcement elements are preferably arranged on the two vertical edges of the wall elements and have a typical distance of several centimeters from the corresponding vertical edges of the wall elements.
  • the connecting reinforcement elements continue in the interior of the wall elements, preferably in the longitudinal direction of the wall elements.
  • the cavity or the through-openings to the cavity of the wall-holding element is designed with a width which is larger than the distance of adjacent connection-reinforcing elements from successive wall elements.
  • connection reinforcement elements projecting from the wall element can extend through the at least one passage opening into the cavity of the wall holding elements when the wall holding elements with the end face having the passage opening are in abutment with the connecting reinforcement elements arranged thereon at the connection areas of the wall elements.
  • the wall holding element is designed to be closed on the end face associated with the earth load.
  • the at least one provided for connection to the wall element wall holding element is open at the bottom, so that projecting over the concrete foundation reinforcing elements extend into the cavity of the wall holding element as soon as the wall holding element is placed on the concrete foundation.
  • the wall-holding element is not only shear and tensile strength connected via the connection reinforcement with the wall element, but also shear-resistant over the protruding into the cavity from below connecting reinforcement element with the concrete foundation By its weight after pouring the wall support member is also extremely stable ,
  • the at least one wall-holding element has a length which corresponds to 40 to 50% of the height of the associated wall elements.
  • the width of the wall holding element is typically between 30 and 50 cm.
  • the length and the width of the foundation strips of the concrete foundation are to be adapted to the corresponding dimensions of the wall holding element, so that the wall holding element can be supported completely on the concrete foundation with its underside.
  • the length of the foundation strips also allows the support of the lateral edges of the wall elements.
  • the wall element may be a solid concrete wall element or a pourable with in-situ concrete hollow wall element with or without visible natural stone composite on the ground facing away from the flat side.
  • the concrete retaining wall according to the invention is made of at least one modular prefabricated supporting wall with the features described above. Accordingly, it has at least one vertically arranged reinforced tabular wall element made of concrete for earth support with at least one vertically mountable, having a central cavity, filled with in-situ concrete, with the wall element transversely connectable wall support element made of reinforced concrete for the removal of horizontal forces in the soil on.
  • the modular prefabricated support wall is configured for placement on a concrete foundation.
  • the at least one wall element and the at least one associated wall holding element stand on the concrete foundation.
  • the wall holding element is supported with its underside completely on the concrete foundation, while the wall element is preferably only in the region of the wall holding element on the concrete foundation in Appendix.
  • the wall element is filled with in-situ concrete, on the one hand to increase its mass and on the other hand to produce an intimate connection with the reinforcements of the concrete foundation and the connection reinforcement of the wall element in a simple way.
  • the concrete foundation is designed as a strip foundation whose foundation strips are arranged in a grid corresponding to the length of the wall elements.
  • the foundation strips extend parallel to each other, at least with approximately aligned leading edges.
  • the wall elements are arranged transversely to the longitudinal direction of the foundation strips near the front edges and the wall holding elements in the longitudinal direction of the foundation strips that the open end of the Wandhalteelemerites on the intended to support the soil flat side in abutment.
  • the wall retaining elements are jointly arranged on two abutting edges of adjacent wall elements, the two edges and the connection reinforcement elements projecting out of the respective wall element at the edges.
  • the two successive wall elements are connected to each other safely via the wall holding element.
  • the wall-holding elements are flush or recessed with respect to the corresponding edge of the wall element receiving the projecting reinforcing elements arranged.
  • antifreeze gravel is piled laterally in front of and / or behind the at least one wall element to prevent frost damage.
  • the antifreeze gravel layer may extend below the respective wall element.
  • the advantages of the invention lie in the industrial inexpensive prefabrication of the wall elements and the wall holding elements and the simple connection with each other and with the concrete foundations at the site.
  • the concrete retaining wall can be quickly and easily created at the site without special professionals. In addition, there is no formwork and demoulding work.
  • Another advantage is that the proposed concrete retaining wall can already be backfilled shortly after the creation.
  • the FIG. 1 shows a concrete retaining wall 1 according to the invention in a side view, which is composed of wall elements 2 and wall holding elements 3.
  • the illustrated concrete retaining wall 1 comprises three wall elements 2 and four wall retaining elements 3, which are arranged upright on a strip foundation 4 made of concrete.
  • the strip foundation 4 consists of four foundation strips 5, which extend parallel to each other in a certain of the length of the wall elements 2 grid.
  • the wall elements 2 stand with vertical lateral edges 6 on the foundation strip 5.
  • At the foundation strip 5 and the wall holding elements 3 are on the front side of the wall elements 2 in Appendix.
  • the wall holding elements 3 overlap the two edges 6 together, while in the region of non-abutting edges 6 the wall holding elements 3 are flush with the outer vertical edge 7 of the wall elements 2.
  • the strip foundation 4 is arranged in this embodiment on a laterally sloping bottom surface 8, wherein the foundation strips 5 are arranged graduated according to the lateral inclination of the bottom surface 8.
  • the lower edge 9 of the wall elements 2 is stepped according to the height difference of the foundation strips 5.
  • a frost protection gravel layer 10 is arranged on the side facing away from the supporting soil of the concrete retaining wall 1.
  • FIG. 2 shows the concrete retaining wall 1 from FIG. 1 in a vertical longitudinal section in the region of a wall holding element 3 with a view towards the flat side of the wall holding element.
  • the illustrated concrete retaining wall 1 is not backfilled with soil or the like.
  • the wall holding element 3 is connected to the wall element 2 via a connection reinforcement 11.
  • the connection reinforcement 11 is, like the FIG. 3 can be seen, formed angled. It was in the manufacture of the wall element 2 of reinforced concrete with embedded in the concrete such that the connection reinforcement 11 at an angle, in particular orthogonal projecting from the earth load receiving flat side 12 at the vertical edges 6.
  • the wall holding element 3 shows, moreover, that the wall holding element 3 has a cavity 13 filled with in-situ concrete 16, into which the connecting reinforcement 11 extends at an end face 15 having a passage opening 14 into the cavity 13.
  • the wall holding element 3 is prefabricated as a double-shell hollow concrete wall element and poured out after assembly with the wall element 2 with the in-situ concrete 16 such that the protruding from the flat side 12 of the wall element 2 connection reinforcement elements 11 are completely embedded in the in-situ concrete 16.
  • the wall holding element 3 is, like the FIG. 4 it can be seen below formed open, wherein the strip foundation 4 can be seen with reinforcing elements 17 which project beyond the foundation strip 5 into the cavity 13 of the wall holding element 3. The outgoing from the foundation strip 5 reinforcing elements 17 are embedded in the in-situ concrete 16 of the wall-holding element 3.
  • the wall element 2 is force-transmitting connected to the strip foundation 4.
  • the wall elements 2 have a height of about 2 m and a length of about 4.25 m.
  • the foundation strips 5 have a typical width of 50 cm and the wall holding elements 3 a typical width of 40 cm.
  • the height of the wall holding elements 3 is adapted to the height of the wall elements 2 and is about 160 cm.
  • the length of the wall holding element 3 is also dependent on the size of the wall element 2 used. It is about 100 cm in this case.
  • a U-shaped in cross-section wall holding element 3 is used. Before pouring the wall holding member 3, this is fixed to the wall elements 2 for fixing the position with suitable releasable holding means, for example, angles.

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Retaining Walls (AREA)

Description

Die Erfindung betrifft eine modulare Fertigteilstützwand zur Anordnung auf einem Betonfundament, eine aus den Elementen der Fertigteilstützwand hergestellte Stützmauer sowie ein Verfahren zur Herstellung einer derartigen Stützmauer, mit mindestens einem vertikal anordenbaren armierten tafelförmigen Wandelement aus Beton zur Erdabstützung und mit mindestens einem senkrecht zum Wandelement vertikal anordenbaren, einen zentralen Hohlraum aufweisenden, mit Ortbeton ausfüllbaren, mit einer Anschlussbewehrung des Wandelementes verbindbaren Wandhalteelements aus Stahlbeton zur Abtragung von Horizontalkräf-ten, wobei mehrere derartige Wandelemente mit ihren Wandhalteelementen in Längsrichtung aneinander anreihbar sind, wobei das Wandelement an den beiden vertikalen Rändern von der Flachseite winkelig abstehende Anschlussbewehrungselemente aufweist.The invention relates to a modular prefabricated support wall for placement on a concrete foundation, a retaining wall made of the elements of the precast support wall and a method for producing such a retaining wall, with at least one vertically arranged reinforced concrete tabular wall element for Erdabstützung and with at least one perpendicular to the wall element vertically arranged , a central cavity, filled with in-situ concrete, connectable with a connection reinforcement of the wall element wall support element made of reinforced concrete for removal of horizontal forces, wherein a plurality of such wall elements with their wall holding elements in the longitudinal direction are juxtaposed, the wall element at the two vertical edges of the flat side having angularly protruding connection reinforcement elements.

Innerhalb des bekannten Standes der Technik existieren zahlreiche Verfahren, eine Stützmauer zur Erdabstützung zu erstellen. Zum einen besteht die Möglichkeit, Betonstützmauern direkt auf der Baustelle am vorgesehenen Standort zu gießen. Dazu sind umfangreiche Schalungs-, Armierungs- und Gießarbeiten vor Ort notwendig. Der Aufbau einer solchen Vollbetonstützmauer ist arbeitsintensiv, teuer und zeitaufwändig. Zum anderen besteht die Option, Betonstützmauern aus industriell vorgefertigten Bauelementen am Standort zu errichten. Dazu werden in der Regel vorgefertigte armierte vertikale Betonwände mit vorgefertigten oder vor Ort erstellten säulenartigen Betontragelementen verbunden, die mit dem unteren Ende in das Erdreich eingelassen und häufig noch mit vom oberen Ende ausgehenden Bodenankern im Erdreich verankert werden. Eine derartige Art des Aufbaus einer Stützmauer ist wirtschaftlicher und schneller als das Gießen von Stützmauern vor Ort. Bei der Verwendung von Bodenankern hinter der Betonstützmauer sind jedoch spezielle Techniken notwendig, die besondere Fachleute erfordern. Vorgesehene Bodenanker verteuern die Kosten für eine Stützmauer wesentlich.Within the known state of the art numerous methods exist for creating a retaining wall for supporting the earth. On the one hand, it is possible to cast concrete retaining walls directly at the construction site at the intended location. This requires extensive formwork, reinforcement and casting work on site. The construction of such a solid concrete retaining wall is labor-intensive, expensive and time consuming. On the other hand, there is the option of constructing concrete retaining walls from industrially prefabricated building elements on the site. For this purpose, prefabricated reinforced vertical concrete walls are usually connected with prefabricated or locally created columnar concrete support elements, which are embedded with the lower end in the ground and often anchored with emanating from the upper end ground anchors in the ground. Such a way of constructing a retaining wall is more economical and faster than the casting of retaining walls on site. However, when using ground anchors behind the concrete retaining wall, special techniques are required that require special skill. Proposed ground anchors substantially increase the cost of a retaining wall.

Zum Stand der Technik wird auf die Druckschrift FR 2 314 987 A1 verwiesen. Diese Offenlegungsschrift offenbart ein vertikal anordenbares armiertes tafelförmiges Wandelement, das an einem der beiden vertikalen Rändern mehrere von der Flachseite orthogonal abstehende Anschlussbewehrungselemente aufweist. Außerdem weist das bekannte Wandelement an seinen beiden vertikalen Schmalseiten Winkelschienen in einer Ausnehmung auf, die zum seitlichen Verschrauben von zwei stoßenden Wandelementen vorgesehen sind. Die Abstützung der Wandelemente an der Flachseite erfolgt durch ein mit dem Wandelement durch Ortbeton verbindbares Wandhalteelement, das eine Armierung aufweist, die sich bis in einen Hohlraum erstreckt. Dabei wird das Wandhaltelement derart an dem Wandelement angeordnet, dass sich die Anschlussbewehrungselemente in den Hohlraum erstrecken, der anschließend mit Ortbeton ausgegossen wird.The prior art is on the document FR 2 314 987 A1 directed. This publication discloses a vertically arranged armored tabular wall element having on one of the two vertical edges a plurality of orthogonally projecting from the flat side connecting reinforcement elements. In addition, the known wall element on its two vertical narrow sides of angle rails in a recess which are provided for the lateral screwing of two abutting wall elements. The support of the wall elements on the flat side is effected by a connectable to the wall element by in-situ concrete wall holding element having a reinforcement which extends into a cavity. In this case, the wall holding element is arranged on the wall element in such a way that the connecting reinforcing elements extend into the cavity, which is then poured out with in-situ concrete.

Ausgehend von dem vorstehend beschriebenen Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Möglichkeit vorzuschlagen, eine Stützwand aus industriell vorgefertigten Betonbauelementen am Aufstellungsort schnell, einfach und kostengünstig zu erstellen.Based on the above-described prior art, the present invention seeks to propose a way to create a support wall made of industrially prefabricated concrete components at the site quickly, easily and inexpensively.

Diese Aufgabe wird erfindungsgemäß durch eine modulare Fertigteilstützwand mit den Merkmalen des Anspruchs 1, eine Betonstützmauer mit den Merkmalen des Anspruchs 5 und ein Verfahren zur Herstellung einer derartigen Stützmauer mit den Merkmalen des Anspruchs 9 gelöst. Weitere vorteilhafte Ausgestaltungen sind den jeweiligen rückbezogenen Unteransprüchen zu entnehmen.This object is achieved by a modular precast support wall with the features of claim 1, a concrete retaining wall with the features of claim 5 and a method for producing such a retaining wall with the features of claim 9 solved. Further advantageous embodiments can be found in the respective dependent subclaims.

Die neue modulare Fertigteilstützwand weist mindestens ein vertikal anordenbares armiertes tafelförmiges Wandelement aus Beton zur Erdabstützung auf, mit mindestens einem senkrecht zum Wandelement vertikal anordenbaren, einen zentralen Hohlraum aufweisenden, mit Ortbeton ausfüllbareM und mit dem Wandelement verbindbaren Wandhalteelement aus Stahlbeton zur Abtragung von Horizontalkräften. Das mindestens eine Wandelement mit dem mindestens einen Wandhalteelement ist konfiguriert zur Anordnung auf einem Betonfundament. Das Wandelement kann als Massiv- oder Hohlwandelement ausgebildet sein und unterschiedliche Längen und Höhen aufweisen. Dabei kann die Unterkante des Wandelementes rechtwinkelig und/oder in einem anderen Winkel zu den Seitenkanten angeordnet sein und sich geradlinig oder abgestuft zwischen den Seitenkanten des Wandelementes erstrecken. Die Oberkante kann beliebig geformt und angeordnet sein. Dies ist insbesondere dann von Vorteil, wenn die tafelförmigen Wandelemente in Neigungsrichtung eines Hanges anzuordnen sind. Das Wandhalteelement ist in der Höhe an das Höhenmaß des Wandelementes angepasst. Seine Höhe beträgt typisch 30 bis 40 cm weniger als die Höhe des Wandelementes. Die Länge des Wandhalteelementes ist von der Höhe des Wandelementes abhängig, seine Breite ist vorzugsweise bei allen vorgesehenen Varianten gleich.The new prefabricated modular support wall has at least one vertically arranged reinforced concrete tabular wall element for ground support, with at least one vertically fillable central wall cavity filled with in-situ concrete and wall-mounted reinforced concrete wall support element for abrading horizontal forces. The at least one wall element with the at least one wall holding element is configured for placement on a concrete foundation. The wall element may be formed as a solid or hollow wall element and have different lengths and heights. In this case, the lower edge of the wall element may be arranged at right angles and / or at a different angle to the side edges and extend in a straight line or stepped manner between the side edges of the wall element. The upper edge can be arbitrarily shaped and arranged. This is particularly advantageous when the tabular wall elements are to be arranged in the direction of inclination of a slope. The wall holding element is adapted in height to the height dimension of the wall element. Its height is typically 30 to 40 cm less than the height of the wall element. The length of the wall holding element is dependent on the height of the wall element, its width is preferably the same for all variants provided.

Das Wandhalteelement, das einen mit Ortbeton ausfüllbaren Hohlraum aufweist, ist vorzugsweise als zumindest oben offene zweischalige Betonhohlwand ausgebildet, deren Schalen mittels einer Bewehrung miteinander verbunden sind. Die Wandelemente weisen spezielle streifenförmige Verbindungsbereiche für die Wandhalteelemente auf. Diese können an beliebigen Stellen der Wandelemente vorgesehen sein und erstrecken sich in vertikaler Richtung derart, dass die Wandhalteelemente zumindest unten und oben an einem solchen Wandelement befestigt werden können. Damit kann zur Abstützung eines Wandelementes eine entsprechende Anzahl von Wandhalteelementen verwendet werden. Die Verbindungsbereiche der Wandelemente können direkt an den vertikalen Rändern der Wandelemente oder in einem geeigneten Abstand dazu angeordnet sein. Die Wandelemente mit ihrem mindestens einen Wandhalteelement sind in Längsrichtung aneinander anreihbar, so dass Betonstützmauern unter Verwendung von gleich oder unterschiedlich langen Wandelementen in beliebiger Länge errichtbar sind.The wall holding element, which has a cavity which can be filled with in-situ concrete, is preferably designed as a double-shell concrete hollow wall which is open at the top and whose shells are connected to one another by means of a reinforcement. The wall elements have special strip-shaped connection areas for the wall holding elements. These can be provided at any position of the wall elements and extend in the vertical direction such that the wall holding elements can be attached at least down and up to such a wall element. Thus, a corresponding number of wall holding elements can be used to support a wall element. The connection areas the wall elements may be arranged directly on the vertical edges of the wall elements or at a suitable distance therefrom. The wall elements with their at least one wall-holding element can be aligned in the longitudinal direction, so that concrete retaining walls can be constructed using equal or different length wall elements of any desired length.

Bei der erfindungsgemäßen modularen Fertigteilstützwand weisen die Verbindungsbereiche der Wandelemente von der Flachseite abstehende Anschlussbewehrungselemente auf. Die Anschlussbewehrungselemente sind vorzugsweise an den beiden vertikalen Rändern der Wandelemente angeordnet und weisen zu den entsprechenden vertikalen Kanten der Wandelemente einen typischen Abstand von mehreren Zentimetern auf. Die Anschlussbewehrungselemente setzen sich im innern der Wandelemente vorzugsweise in Längsrichtung der Wandelemente fort. Erfindungsgemäß ist zudem der Hohlraum bzw. sind die Durchtrittsöffnungen zu dem Hohlraum des Wandhalteelementes mit einer Breite ausgeführt, die gegenüber dem Abstand von benachbarten Anschlussbewehrungselementen von aufeinander folgenden Wandelementen größer ausgebildet ist. Somit können sich die von dem Wandelement abstehenden Anschlussbewehrungselemente durch die mindestens eine Durchtrittsöffnung in den Hohlraum der Wandhalteelemente erstrecken, wenn die Wandhalteelemente mit der die Durchtrittsöffnung aufweisenden Stirnseite an den Verbindungsbereichen der Wandelemente mit den dort angeordneten Anschlussbewehrungselementen in Anlage sind. Durch Ausgießen des Hohlraumes sowie der Durchtrittsöffnung mit Ortbeton kann eine dauerhafte und horizontal lastabtragende Verbindung zwischen dem Wandelement und dem Wandhalteelement geschaffen werden. Das Wandhalteelement weist auf der dem Wandelement zugeordneten Stirnseite mindestens eine Durchtrittsöffnung zum Verbinden mit den Wandelement auf. Dies kann dadurch erfolgen, dass die Durchtrittsöffnung sich über die gesamte Höhe und Breite des Hohlraums erstreckt - somit das Wandhaltelement U-förmig ausgebildet ist -, oder die Stirnseite eine Wand mit einer Anzahl von Durchtrittsöffnungen für die von dem Wandelement herausragenden Anschlussbewehrungselemente aufweist.In the case of the modular prefabricated support wall according to the invention, the connecting regions of the wall elements have connection reinforcing elements projecting from the flat side. The connection reinforcement elements are preferably arranged on the two vertical edges of the wall elements and have a typical distance of several centimeters from the corresponding vertical edges of the wall elements. The connecting reinforcement elements continue in the interior of the wall elements, preferably in the longitudinal direction of the wall elements. According to the invention, moreover, the cavity or the through-openings to the cavity of the wall-holding element is designed with a width which is larger than the distance of adjacent connection-reinforcing elements from successive wall elements. Thus, the connection reinforcement elements projecting from the wall element can extend through the at least one passage opening into the cavity of the wall holding elements when the wall holding elements with the end face having the passage opening are in abutment with the connecting reinforcement elements arranged thereon at the connection areas of the wall elements. By pouring the cavity and the passage opening with in-situ concrete, a permanent and horizontal load-transferring connection between the wall element and the wall holding element can be created. The wall holding element has on the wall element associated end face at least one passage opening for connection to the wall element. This can be done by the passage opening extending over the entire height and width of the cavity - thus the wall holding member is U-shaped - or the end face has a wall with a number of passage openings for protruding from the wall element connection reinforcement elements.

Bei einer bevorzugten Ausführungsform der erfindungsgemäßen Fertigteilstützwand ist das Wandhalteelement auf der der Erdlast zugeordneten Stirnseite geschlossen ausgebildet.In a preferred embodiment of the prefabricated supporting wall according to the invention, the wall holding element is designed to be closed on the end face associated with the earth load.

Bei einer begünstigten Ausführungsform der Erfindung ist das mindestens eine zur Verbindung mit dem Wandelement vorgesehene Wandhalteelement unten offen, so dass sich über das Betonfundament vorstehende Bewehrungselemente bis in den Hohlraum des Wandhalteelementes erstrecken, sobald das Wandhalteelement auf dem Betonfundament angeordnet wird. Beim Ausfüllen des Hohlraums mit Ortbeton wird das Wandhalteelement nicht nur scher- und zugfest über die Anschlussbewehrung mit dem Wandelement verbunden, sondern auch schubfest über die von unten in den Hohlraum hineinragenden Anschlussbewehrungselement mit dem Betonfundament Durch sein Gewicht nach dem Ausgießen ist das Wandhalteelement zudem äußerst standfest.In a favorable embodiment of the invention, the at least one provided for connection to the wall element wall holding element is open at the bottom, so that projecting over the concrete foundation reinforcing elements extend into the cavity of the wall holding element as soon as the wall holding element is placed on the concrete foundation. When filling the cavity with in-situ concrete, the wall-holding element is not only shear and tensile strength connected via the connection reinforcement with the wall element, but also shear-resistant over the protruding into the cavity from below connecting reinforcement element with the concrete foundation By its weight after pouring the wall support member is also extremely stable ,

Um eine ausreichende Lastabtragung von horizontalen Erdlasten in das Erdreich zu ermöglichen, weist das mindestens eine Wandhalteelement eine Länge auf, die 40 bis 50 % der Höhe des zugeordneten Wandelemente entspricht. Die Breite des Wandhalteelementes beträgt typischerweise zwischen 30 und 50 cm. Sie ist jedoch variierbar. Es ist selbstverständlich, dass die Länge und die Breite der Fundamentstreifen des Betonfundamentes an die entsprechenden Maße des Wandhalteelementes anzupassen sind, so dass sich das Wandhalteelement mit seiner Unterseite vollständig auf dem Betonfundament abstützen kann. Vorzugsweise ermöglicht die Länge der Fundamentstreifen auch die Auflage der seitlichen Ränder der Wandelemente. Dabei kann das Wandelement ein Massivbetonwandelement oder ein mit Ortbeton ausgießbares Hohlwandelement mit oder ohne sichtseitigen Natursteinverbund auf der dem Erdreich abgewandten Flachseite sein.In order to allow sufficient load transfer of horizontal soil loads in the soil, the at least one wall-holding element has a length which corresponds to 40 to 50% of the height of the associated wall elements. The width of the wall holding element is typically between 30 and 50 cm. However, it is variable. It goes without saying that the length and the width of the foundation strips of the concrete foundation are to be adapted to the corresponding dimensions of the wall holding element, so that the wall holding element can be supported completely on the concrete foundation with its underside. Preferably, the length of the foundation strips also allows the support of the lateral edges of the wall elements. In this case, the wall element may be a solid concrete wall element or a pourable with in-situ concrete hollow wall element with or without visible natural stone composite on the ground facing away from the flat side.

Die erfindungsgemäße Betonstützmauer ist aus mindestens einer modularen Fertigteilstützwand mit den vorstehend beschriebenen Merkmalen -hergestellt. Demnach weist sie zumindest ein vertikal anordenbares armiertes tafelförmiges Wandelement aus Beton zur Erdabstützung mit mindestens einem vertikal anordenbaren, einen zentralen Hohlraum aufweisenden, mit Ortbeton ausfüllbaren, mit dem Wandelement quer verbindbaren Wandhalteelement aus Stahlbeton zur Abtragung von Horizontalkräften in das Erdreich auf. Die modulare Fertigteilstützwand ist konfiguriert zur Anordnung auf einem Betonfundament. Das mindestens eine Wandelement und das mindestens eine zugeordnete Wandhalteelement stehen auf dem Betonfundament auf. Das Wandhalteelement stützt sich mit seiner Unterseite vollständig auf dem Betonfundament ab, während das Wandelement vorzugsweise nur im Bereich des Wandhalteelementes an dem Betonfundament in Anlage ist. Zweckmäßigerweise ist das Wandelement mit Ortbeton ausgefüllt, um einerseits dessen Masse zu vergrößern und andererseits eine innige Verbindung mit den Bewehrungen des Betonfundamentes und der Anschlussbewehrung des Wandelementes auf einfache Art herzustellen.The concrete retaining wall according to the invention is made of at least one modular prefabricated supporting wall with the features described above. Accordingly, it has at least one vertically arranged reinforced tabular wall element made of concrete for earth support with at least one vertically mountable, having a central cavity, filled with in-situ concrete, with the wall element transversely connectable wall support element made of reinforced concrete for the removal of horizontal forces in the soil on. The modular prefabricated support wall is configured for placement on a concrete foundation. The at least one wall element and the at least one associated wall holding element stand on the concrete foundation. The wall holding element is supported with its underside completely on the concrete foundation, while the wall element is preferably only in the region of the wall holding element on the concrete foundation in Appendix. Conveniently, the wall element is filled with in-situ concrete, on the one hand to increase its mass and on the other hand to produce an intimate connection with the reinforcements of the concrete foundation and the connection reinforcement of the wall element in a simple way.

Vorzugsweise ist das Betonfundament als Streifenfundament ausgebildet, dessen Fundamentstreifen in einem der Länge der Wandelemente entsprechenden Raster angeordnet sind. Die Fundamentstreifen erstrecken sich parallel zueinander, zumindest mit annähernd fluchtenden Vorderkanten. Auf dem Streifenfundament werden die Wandelemente quer zur Längsrichtung der Fundamentstreifen nahe der vorderen Kanten und die Wandhalteelemente in Längsrichtung der Fundamentstreifen angeordnet, dass die offene Stirnseite des Wandhalteelemerites an der zur Abstützung des Erdreichs vorgesehenen Flachseite in Anlage ist.Preferably, the concrete foundation is designed as a strip foundation whose foundation strips are arranged in a grid corresponding to the length of the wall elements. The foundation strips extend parallel to each other, at least with approximately aligned leading edges. On the strip foundation, the wall elements are arranged transversely to the longitudinal direction of the foundation strips near the front edges and the wall holding elements in the longitudinal direction of the foundation strips that the open end of the Wandhalteelemerites on the intended to support the soil flat side in abutment.

Das erfindurigsgemäße Verfahren zur Herstellung der vorstehend spezifizierten Betonstützmauer umfasst die folgenden Schritte:

  • Fertigen und Bereitstellen mindestens eines vertikal anordenbaren armierten tafelförmigen Wandelementes aus Beton, mit an den vertikalen Rändern angeordneten winklig von der Flachseite abstehenden Anschlussbewehrungselementen;
  • Fertigen und Bereitstellen mindestens eines einen zentralen Hohlraum aufweisenden, unten offenen, an der der Erdlast zugeordneten Stirnseite geschlossenen und auf der dem Wandelement zugeordneten Stirnseite mindestens eine Durchtrittsöffnung für die von dem Wandelement abstehenden Bewehrungselemente aufweisenden Wandhalteelementes aus Stahlbeton;
  • Erstellen von Fundamentstreifen mit nach oben vorstehenden Bewehrungselementen, in einem Raster entsprechend der Länge der Wandelemente; und
  • Anordnen der Wandelemente und der Wandhalteelemente orthogonal zueinander aufstehend auf dem Fundamentstreifen des Streifenfundaments und Befestigen der Wandhalteelemente an den Wandelementen und den Fundamentstreifen durch Auffüllen der Wandhalteelemente mit Ortbeton.
The inventive method for producing the above-specified concrete retaining wall comprises the following steps:
  • Manufacturing and providing at least one vertically arranged armored tabular wall element made of concrete, with connection reinforcement elements arranged at an angle to the vertical edges and projecting from the flat side;
  • Finishing and providing at least one central cavity having, open at the bottom, closed at the end face associated with the earth load and assigned to the wall element Front side at least one passage opening for the projecting from the wall element reinforcing elements wall holding element made of reinforced concrete;
  • Creating foundation strips with upwardly projecting reinforcing elements, in a grid corresponding to the length of the wall elements; and
  • Arranging the wall elements and the wall holding elements orthogonal to each other standing on the foundation strip of the strip foundation and attaching the wall holding elements to the wall elements and the foundation strip by filling the wall holding elements with in-situ concrete.

Vorzugsweise werden bei einer aus mehreren Wandelementen zusammengesetzten Betonstützmauer die Wandhalteelemente an zwei stoßenden Rändern von benachbarten Wandelementen, die beiden Ränder und die an den Rändern aus dem jeweiligen Wandelement hervortretenden Anschlussbewehrungselemente gemeinsam übergreifend angeordnet. Somit werden vorteilhafterweise die beiden aufeinanderfolgenden Wandelemente indirekt über das Wandhalteelement miteinander sicher verbunden. Zudem werden an den freien Rändern von äußeren Wandelementen die Wandhalteelemente bündig oder rückstehend bezüglich der entsprechenden Kante des Wandelementes, die abstehenden Bewehrungselemente aufnehmend, angeordnet.Preferably, in the case of a concrete retaining wall composed of a plurality of wall elements, the wall retaining elements are jointly arranged on two abutting edges of adjacent wall elements, the two edges and the connection reinforcement elements projecting out of the respective wall element at the edges. Thus, advantageously, the two successive wall elements are connected to each other safely via the wall holding element. In addition, at the free edges of outer wall elements, the wall-holding elements are flush or recessed with respect to the corresponding edge of the wall element receiving the projecting reinforcing elements arranged.

Bei einer vorteilhaften Ausführungsform der erfindungsgemäßen Betonstützmauer wird seitlich vor und/oder hinter dem mindestens einen Wandelement Frostschutzkies aufgeschichtet, um Frostschäden zu verhindern. Die Frostschutzkiesschicht kann sich bis unterhalb des jeweiligen Wandelementes erstrecken.In an advantageous embodiment of the concrete retaining wall according to the invention antifreeze gravel is piled laterally in front of and / or behind the at least one wall element to prevent frost damage. The antifreeze gravel layer may extend below the respective wall element.

Die Vorteile der Erfindung liegen in der industriellen kostengünstigen Vorfertigung der Wandelemente und der Wandhalteelemente und der einfachen Verbindung miteinander und mit den Betonfundamenten am Aufstellungsort. Die Betonstützmauer kann schnell und einfach am Erstellungsort ohne spezielle Fachkräfte erstellt werden. Zudem entfallen Schalungs- und Entschalungsarbeiten. Weiterer Vorteil ist, dass die vorgeschlagene Betonstützmauer bereits kurze Zeit nach der Erstellung hinterfüllt werden kann.The advantages of the invention lie in the industrial inexpensive prefabrication of the wall elements and the wall holding elements and the simple connection with each other and with the concrete foundations at the site. The concrete retaining wall can be quickly and easily created at the site without special professionals. In addition, there is no formwork and demoulding work. Another advantage is that the proposed concrete retaining wall can already be backfilled shortly after the creation.

Nachfolgend wird die Erfindung anhand eines Ausführungsbeispiels näher erläutert. Weitere Merkmale der Erfindung ergeben sich aus der folgenden Beschreibung des Ausführungsbeispiels der Erfindung in Verbindung mit den Ansprüchen und der beigefügten Zeichnung. Die Merkmale der Erfindung können bei unterschiedlichen Ausführungsformen der Erfindung verwirklicht sein. Es zeigen:

Figur 1
eine erfindungsgemäße Betonstützmauer, hergestellt aus Wandelementen und Wandhalteelementen der erfindungsgemäßen modularen Fertigteitstützwand;
Figur 2
die Betonstützmauer aus Figur 1 in einer vertikalen Längsschnittdarstellung im Bereich eines Wandhalteelementes, mit Blickrichtung senkrecht zu der Flachseite des Wandhalteelementes;
Figur 3
die Betonstützmauer aus Figur 1 in einer horizontalen Querschnittsdarstellung im Bereich des Wandhalteelementes;
Figur 4
das Wandhalteelement aus Figur 2 in einer vertikalen Längsschnittdarstellung mit Blickrichtung senkrecht zu der Stirnseite des Wandhalteelementes.
The invention will be explained in more detail with reference to an embodiment. Further features of the invention will become apparent from the following description of the embodiment of the invention in conjunction with the claims and the accompanying drawings. The features of the invention may be embodied in different embodiments of the invention. Show it:
FIG. 1
a concrete retaining wall according to the invention, made of wall elements and wall holding elements of modular prefabricated supporting wall according to the invention;
FIG. 2
the concrete retaining wall FIG. 1 in a vertical longitudinal sectional view in the region of a wall holding element, with a viewing direction perpendicular to the flat side of the wall holding element;
FIG. 3
the concrete retaining wall FIG. 1 in a horizontal cross-sectional view in the region of the wall holding element;
FIG. 4
the wall holding element FIG. 2 in a vertical longitudinal sectional view with a viewing direction perpendicular to the end face of the wall holding element.

Die Figur 1 zeigt eine erfindungsgemäße Betonstützmauer 1 in Seitenansicht, die aus Wandelementen 2 und Wandhalteelementen 3 aufgebaut ist. Die dargestellte Betonstützmauer 1 umfasst drei Wandelemente 2 und vier Wandhalteelemente 3, die auf einem Streifenfundament 4 aus Beton aufrecht stehend angeordnet sind. Das Streifenfundament 4 besteht aus vier Fundamentstreifen 5, die sich parallel zueinander in einem von der Länge der Wandelemente 2 bestimmten Raster erstrecken. Die Wandelemente 2 stehen mit vertikalen seitlichen Rändern 6 auf den Fundamentstreifen 5 auf. An den Fundamentstreifen 5 stehen auch die Wandhalteelemente 3 auf, die stirnseitig an den Wandelementen 2 in Anlage sind. Im Bereich stoßender Ränder 6 übergreifen die Wandhalteelemente 3 die beiden Ränder 6 gemeinsam, während im Bereich nicht stoßender Ränder 6 die Wandhalteelemente 3 bündig mit der äußeren vertikalen Kante 7 der Wandelemente 2 abschließen. Das Streifenfundament 4 ist bei diesem Ausführungsbeispiel an einer seitlich abfallenden Bodenfläche 8 angeordnet, wobei die Fundamentstreifen 5 entsprechend der seitlichen Neigung der Bodenfläche 8 abgestuft angeordnet sind. Die Unterkante 9 der Wandelemente 2 ist entsprechend dem Höhenunterschied der Fundamentstreifen 5 abgestuft ausgebildet. Mindestens im Bereich zwischen den Wandhalteelementen 3 ist auf der dem stützenden Erdreich abgewandten Seite der Betonstützmauer 1 eine Frostschutzkiesschicht 10 angeordnet.The FIG. 1 shows a concrete retaining wall 1 according to the invention in a side view, which is composed of wall elements 2 and wall holding elements 3. The illustrated concrete retaining wall 1 comprises three wall elements 2 and four wall retaining elements 3, which are arranged upright on a strip foundation 4 made of concrete. The strip foundation 4 consists of four foundation strips 5, which extend parallel to each other in a certain of the length of the wall elements 2 grid. The wall elements 2 stand with vertical lateral edges 6 on the foundation strip 5. At the foundation strip 5 and the wall holding elements 3 are on the front side of the wall elements 2 in Appendix. In the area of abutting edges 6, the wall holding elements 3 overlap the two edges 6 together, while in the region of non-abutting edges 6 the wall holding elements 3 are flush with the outer vertical edge 7 of the wall elements 2. The strip foundation 4 is arranged in this embodiment on a laterally sloping bottom surface 8, wherein the foundation strips 5 are arranged graduated according to the lateral inclination of the bottom surface 8. The lower edge 9 of the wall elements 2 is stepped according to the height difference of the foundation strips 5. At least in the area between the wall holding elements 3, a frost protection gravel layer 10 is arranged on the side facing away from the supporting soil of the concrete retaining wall 1.

Die Figur 2 zeigt die Betonstützmauer 1 aus Figur 1 in einer vertikalen Längsschnittdarstellung im Bereich eines Wandhalteelementes 3 mit Blickrichtung zur Flachseite des Wandhalteelementes. Die dargestellte Betonstützmauer 1 ist noch nicht mit Erdreich oder dergleichen hinterfüllt. Es ist zu erkennen, dass das Wandhalteelement 3 mit dem Wandelement 2 über eine Anschlussbewehrung 11 verbunden ist. Die Anschlussbewehrung 11 ist, wie der Figur 3 zu entnehmen ist, abgewinkelt ausgebildet. Sie wurde bei der Herstellung des Wandelementes 2 aus armiertem Beton mit in den Beton derart eingebettet, dass die Anschlussbewehrung 11 winkelig, insbesondere orthogonal von der die Erdlast aufnehmenden Flachseite 12 an den vertikalen Rändern 6 absteht. Die Figur 3 zeigt außerdem, dass das Wandhalteelement 3 einen mit Ortbeton 16 ausgefüllten Hohlraum 13 aufweist, in den sich die Anschlussbewehrung 11 an einer eine Durchtrittsöffnung 14 aufweisenden Stirnseite 15 bis in den Hohlraum 13 erstreckt. Das Wandhalteelement 3 ist als zweischaliges hohles Betonwandelement vorgefertigt und nach dem Zusammenfügen mit dem Wandelement 2 mit dem Ortbeton 16 derart ausgegossen worden, dass die von der Flachseite 12 des Wandelementes 2 abstehenden Anschlussbewehrungselemente 11 vollständig in den Ortbeton 16 eingebettet sind. Das Wandhalteelement 3 ist, wie der Figur 4 zu entnehmen ist, unten offen ausgebildet, wobei das Streifenfundament 4 mit Bewehrungselementen 17 zu sehen ist, die über die Fundamentstreifen 5 bis in den Hohlraum 13 des Wandhalteelementes 3 vorstehen. Die von dem Fundamentstreifen 5 ausgehenden Bewehrungselemente 17 sind mit in den Ortbeton 16 des Wandhalteelementes 3 eingebettet. Über das Wandhalteelement 3 ist das Wandelement 2 kraftübertragend mit dem Streifenfundament 4 verbunden.The FIG. 2 shows the concrete retaining wall 1 from FIG. 1 in a vertical longitudinal section in the region of a wall holding element 3 with a view towards the flat side of the wall holding element. The illustrated concrete retaining wall 1 is not backfilled with soil or the like. It can be seen that the wall holding element 3 is connected to the wall element 2 via a connection reinforcement 11. The connection reinforcement 11 is, like the FIG. 3 can be seen, formed angled. It was in the manufacture of the wall element 2 of reinforced concrete with embedded in the concrete such that the connection reinforcement 11 at an angle, in particular orthogonal projecting from the earth load receiving flat side 12 at the vertical edges 6. The FIG. 3 shows, moreover, that the wall holding element 3 has a cavity 13 filled with in-situ concrete 16, into which the connecting reinforcement 11 extends at an end face 15 having a passage opening 14 into the cavity 13. The wall holding element 3 is prefabricated as a double-shell hollow concrete wall element and poured out after assembly with the wall element 2 with the in-situ concrete 16 such that the protruding from the flat side 12 of the wall element 2 connection reinforcement elements 11 are completely embedded in the in-situ concrete 16. The wall holding element 3 is, like the FIG. 4 it can be seen below formed open, wherein the strip foundation 4 can be seen with reinforcing elements 17 which project beyond the foundation strip 5 into the cavity 13 of the wall holding element 3. The outgoing from the foundation strip 5 reinforcing elements 17 are embedded in the in-situ concrete 16 of the wall-holding element 3. About the wall holding member 3, the wall element 2 is force-transmitting connected to the strip foundation 4.

Bei dem gezeigten Ausführungsbeispiel weisen die Wandelemente 2 eine Höhe von etwa 2 m und eine Länge von etwa 4,25 m auf. Die Fundamentstreifen 5 weisen eine typische Breite von 50 cm und die Wandhalteelemente 3 eine typische Breite von 40 cm auf. Die Höhe der Wandhalteelemente 3 ist an die Höhe der Wandelemente 2 angepasst und beträgt etwa 160 cm. Die Länge des Wandhalteelementes 3 ist ebenfalls von der Größe des verwendeten Wandelementes 2 abhängig. Sie beträgt in diesem Fall etwa 100 cm. In dem Ausführungsbeispiel wird ein im Querschnitt U-förmig ausgebildetes Wandhalteelement 3 verwendet. Vor dem Ausgießen des Wandhalteelements 3 wird dieses zur Lagefixierung mit geeigneten lösbaren Haltemitteln, beispielsweise Winkeln, an den Wandelementen 2 befestigt.In the embodiment shown, the wall elements 2 have a height of about 2 m and a length of about 4.25 m. The foundation strips 5 have a typical width of 50 cm and the wall holding elements 3 a typical width of 40 cm. The height of the wall holding elements 3 is adapted to the height of the wall elements 2 and is about 160 cm. The length of the wall holding element 3 is also dependent on the size of the wall element 2 used. It is about 100 cm in this case. In the embodiment, a U-shaped in cross-section wall holding element 3 is used. Before pouring the wall holding member 3, this is fixed to the wall elements 2 for fixing the position with suitable releasable holding means, for example, angles.

Claims (12)

  1. A modular prefabricated retaining wall for placing on a concrete foundation (4), including at least one vertically arrangeable, reinforced tabular wall element (2) of concrete for earth support and at least one wall element (3) of reinforced concrete for dissipating horizontal forces, which is arrangeable vertically perpendicular to the wall element (2), affords a central cavity (13), is fillable with in situ concrete (16) and is connectable to a connecting reinforcement (11) of the wall element (2), wherein a plurality of such wall elements (2) may be arranged side by side against one another with their wall retaining elements (3) in the longitudinal direction, wherein the wall element (2) has connecting reinforcing elements (11) on the two vertical edges (6) projecting at an angle from the flat side (12), characterised in that the cavity (13) has a breadth which is larger with respect to the spacing of adjacent connecting reinforcing elements (11) of two successive wall elements (2) and that the wall retaining element (3) is arrangeable on the wall element (2) such that the wall retaining element (3) on two abutting vertical edges (6) of two wall elements (2), whose end faces abut, engages over both the two edges (6) and the two connecting reinforcing elements (11) projecting out of the wall elements (2) at the edges (6), whereby the connecting reinforcing elements (11) of the successive wall elements (2) extend together into the cavity (13) on an end face (15) of the wall retaining element (3), which has an opening (14).
  2. A prefabricated retaining wall as claimed in Claim 1, characterised in that the wall retaining elements (3) are of closed construction on the first end face associated with the earth load.
  3. A prefabricated retaining wall as claimed in Claim 1 or 2, characterised in that the at least one wall retaining element (3) is of open construction at the bottom so that reinforcing elements (17) projecting above the concrete foundation (4) extend into the cavity (13) of the wall retaining element (3).
  4. A prefabricated retaining wall as claimed in one of the preceding claims, characterised in that the at least one wall retaining element (3) has a length which corresponds to 40 to 50 % of the height of the associated wall element (2).
  5. A concrete retaining wall (1) produced from at least one modular prefabricated retaining wall with the features of at least one of the preceding Claims 1 to 4.
  6. A concrete retaining wall as claimed in Claim 5, characterised in that the prefabricated retaining wall is arranged on a concrete foundation constructed as a strip foundation (4), the foundation strips (5) of which are arranged in a grid corresponding to the length of the wall elements (2).
  7. A concrete retaining wall as claimed in Claim 6, characterised in that at least one wall element (2) and the at least one associated wall retaining element (3) rest on the foundation strips (5).
  8. A concrete retaining wall as claimed in one of the preceding Claims 5 to 7, characterised in that the wall retaining element 93) is filled with in situ concrete (16).
  9. A method of producing a concrete retaining wall (1) in accordance with one of the preceding Claims 5 to 8, characterised by the following steps:
    • fabricating and providing at least one vertically arrangeable, reinforced tabular wall element (2) of concrete with connecting reinforcing elements (11) arranged on the vertical edges (6) and projecting at an angle from the flat side (12);
    • fabricating and providing at least one wall retaining element (3) of reinforced concrete, which has a central cavity (13), is closed at the first end face associated with the earth load and on the second end face (15) associated with the wall element (2) has at least one opening (14) for the connecting reinforcing elements (11) projecting from the wall element (2);
    • constructing foundation strips (5) with upwardly projecting reinforcing elements (17) in a grid corresponding to the length of the wall elements; and
    • arranging the least one wall element (2) and the at least one wall retaining element (3) orthogonally to one another resting on the foundation strips (5) and fastening the at least one wall retaining element (3) to the at least one wall element (2) and the foundation strips (5) by filling the wall retaining element (3) with in situ concrete (16).
  10. A method as claimed in Claim 9, characterised in that the wall retaining elements (3) are arranged at two abutting edges of adjacent wall elements (2) so as to engage over both the two edges (6) and the connecting reinforcing elements (11) projecting at the edges (6) from the wall elements (2).
  11. A method as claimed in Claim 9 or 10, characterised in that the wall retaining elements (3) are arranged at free edges (6) of outer wall elements (2) so as to be flush or set back and receiving the projecting connecting reinforcing elements (11).
  12. A method as claimed in one of the preceding Claims 9 to 11, characterised by forming a layer of frost protective gravel laterally in front of and/or behind the at least one wall element (2), at least in the region between the foundation strips (5).
EP11004956.6A 2011-06-17 2011-06-17 Modular pre-fabricated retaining wall, concrete retaining wall comprising same and method for erecting the retaining wall Active EP2535463B1 (en)

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EP3299524B1 (en) 2016-09-27 2021-05-05 GLATTHAAR STARWALS GmbH & Co. KG. Wall made of prefabricated products and method for manufacturing the same
DE202016105371U1 (en) 2016-09-27 2016-11-10 Joachim Glatthaar Precast wall
US11248383B2 (en) 2018-09-21 2022-02-15 Cooper E. Stewart Insulating concrete form apparatus
CN114687584B (en) * 2022-05-31 2022-08-23 中国二十二冶集团有限公司 Construction method and structure for preventing water from sinking under scattered water at outer wall of building curtain wall

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FR2314987A1 (en) * 1975-06-16 1977-01-14 Seric Reinforced concrete pond with precast side walls - has supporting buttresses with reinforcing bars tied together by in-situ cast concrete
US4473978A (en) * 1981-08-10 1984-10-02 Wood Donald D Pollutant storage system
US5697736A (en) * 1994-08-03 1997-12-16 Custom Precast Concrete, L.L.C. Seawalls and shoreline reinforcement systems
CA2191514A1 (en) * 1996-11-28 1998-05-28 Arne B. Wallin Modular wall system
US8407956B2 (en) * 2009-09-18 2013-04-02 Rodney Smith Wall panel with extended integral post

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