EP1408161B1 - Concrete building block for retaining walls with geogrid retention - Google Patents

Concrete building block for retaining walls with geogrid retention Download PDF

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Publication number
EP1408161B1
EP1408161B1 EP03022793A EP03022793A EP1408161B1 EP 1408161 B1 EP1408161 B1 EP 1408161B1 EP 03022793 A EP03022793 A EP 03022793A EP 03022793 A EP03022793 A EP 03022793A EP 1408161 B1 EP1408161 B1 EP 1408161B1
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EP
European Patent Office
Prior art keywords
building block
geogrid
stackable
concrete
finished
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EP03022793A
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German (de)
French (fr)
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EP1408161A2 (en
EP1408161A3 (en
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Andreas Herold
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Herold Andreas
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Individual
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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
    • E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
    • E02D29/0241—Retaining or protecting walls comprising retention means in the backfill the retention means being reinforced earth elements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0084—Geogrids

Definitions

  • the invention relates to a stackable precast concrete, in particular for the production of retaining walls and noise barriers of individual elements.
  • the invention is preferably used for constructing reasonable and steeper and / or high retaining walls or noise barriers of individual elements.
  • a component for the construction of supporting wall elements in which at a cuboidal base element at least at one Part of its boundary surfaces one or more than a groove is arranged, said groove (s) for the positive connection of adjoining basic elements a strip-shaped spring is used as a connecting element.
  • a support wall which comprises a substantially plate-shaped base member which has a parallel to a side edge extending rib, wherein a substantially cuboid connecting element, which is provided with a matching rib to a left groove, is arranged.
  • a disadvantage is that in order to avoid adverse effects on the carrying capacity by erosion a greening is indispensable.
  • Such a finished part corresponds to the preamble of claim 1 also shows US-5156494A .
  • the invention has for its object to provide a stackable precast concrete for the production of supporting walls of individual elements, which is easy to produce and even with low weight allows the production of retaining walls with high stability even without ballast and without complex additional separate back anchoring.
  • the arrangement according to the invention is particularly suitable for the production of supporting walls from individual elements. It contains a stackable prefabricated concrete part, in which a geogrid is connected to the stackable finished part, wherein the geogrid is embedded in the finished part, and the geogrid is anchored in an earth body. in the finished part, a body made of lightweight material is arranged, which extends to at least one side of the finished part and is removable. It is also possible that the finished part is connected to a geogrid, which is connectable to another geogrid and that the other geogrid is anchored in an earth body.
  • each individual element can be anchored back
  • the anchoring length and the type of geosynthetics used for anchoring is basically arbitrary and can be determined by respective static calculation.
  • the dimensions of the geogrids are variable according to the static requirements. It is particularly advantageous to embed the geogrid directly into the precast concrete element; This ensures secure anchoring and load transfer into the finished part.
  • the geogrid is preferably made of plastic. It may be advantageously embedded in the finished part.
  • a reinforcement is arranged, which expediently consists of structural steel.
  • the finished parts are preferably reinforced according to DIN 1045 and are made with lightweight core, especially made of polystyrene.
  • the finished parts can be provided with an anchorage for laying.
  • the body of lightweight material extends in the finished part to at least one side of the finished part and is removable.
  • assembly loops are arranged on the finished part.
  • An advantageous embodiment provides that below a first layer of finished parts, a soil replacement or a cleanliness layer is arranged.
  • a further embodiment consists in that earth and / or greenery are arranged in recesses of the finished part or on horizontal offsets to other finished parts and / or supporting wall elements.
  • the finished part can be designed as a special part, which has a prismatic basic shape with a triangular or polygonal floor plan. It is also possible that the finished part has a prismatic basic shape with a triangular view surface.
  • FIG. 1 shows a usable as a control element rectangular precast element 1 with an element width of about 1.0 m and an element height and an element depth of about 50 cm, which is made of concrete.
  • a Geogrid 2 which is made of plastic and has a very high tensile strength, embedded in concrete.
  • FIG. 2 shows a side view of the in FIG. 1 shown used as a control element molded block 1, which is made of concrete; in the cuboid prefabricated part 1 is a reinforcement 3, which consists of structural steel arranged; the geogrid 2 is cast in the prefabricated part 1 and emerges at right angles from a rear side of the finished part 1 in its lower region. The length of the geogrid 2 arranged outside the finished part 1 is determined by the static design.
  • FIG. 3 shows a further embodiment;
  • the finished part 1 is formed trough-shaped.
  • a cuboid body made of lightweight material 4 namely made of styrofoam arranged.
  • a reinforcement 3 is also arranged, which serves to avoid cracking in the concrete.
  • the geogrid 2 is also arranged in the lower region of the finished part 1.
  • FIG. 4 shows a supporting wall, which was erected with finished parts 1 according to the invention, in a sectional view.
  • the finished parts 1 are stacked side by side and one above the other, the lower row of finished parts 1 being placed on a cleanliness layer 5. All finished parts 1 with air-side contact have a back anchoring.
  • the finished parts 1 of the upper three rows have a geogrid 2, wherein the length of these geogrids 2 is different at different heights as a result of a static design.
  • Three of the prefabricated parts 1 shown have a relatively short geogrid 2 on their rear side; These geogrids 2 are each connected to a further geogrid 2.1, which causes a back anchoring in an earth body 6.
  • the geogrids 2 of the finished parts 1, which are connected to a further geogrid 2.1 are formed with a unit length.
  • FIG. 5 shows a further embodiment of a finished part 1 according to the invention; the core of this finished part 1 is made of a lightweight material 4, which serves to reduce the weight.
  • the formed of lightweight material 4 core this finished part 1 is completely covered by a reinforced with a reinforcement 3 concrete wall.
  • FIG. 6 shows the top view of a first special part 1.1.
  • this first special section 1.1 is a trimmed from two blocks basic body, which is used for the production of angled in the floor plan support walls.
  • a geogrid 2 is arranged in each case.
  • FIG. 7 shows a second special part 1.2, which is also suitable for the formation of angled in plan view of the support walls, said second special part 1.2 has a prismatic shape, wherein the floor plan of this prismatic body forms an isosceles triangle.
  • FIG. 8 shows the view of a support wall formed from a plurality of prefabricated parts 1, wherein on the left lateral boundary of the support wall third special parts 1.3 are arranged, which also have a prismatic shape.
  • the prisms shown here have a triangular view.
  • the in the FIGS. 6 to 8 shown special elements 1.1, 1.2, 1.3 can be produced with any angle, so that support walls with arbitrary course in plan and with any edge and head training can be produced.

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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)
  • Moulds, Cores, Or Mandrels (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

A concrete block for building retaining earth walls has a rectangular trough shape and is attached to a section of plastic mesh which is laid out on the inside of the earth wall and secured by backfill. The mesh is incorporated into the mould of the block to be anchored into the concrete. The concrete shape is strengthened by steel reinforcing, with the hollow inside formed by a light foam plastic insert.

Description

Die Erfindung betrifft ein stapelbares Fertigteil aus Beton, insbesondere zur Herstellung von Stützwänden und Lärmschutzwänden aus einzelnen Elementen.The invention relates to a stackable precast concrete, in particular for the production of retaining walls and noise barriers of individual elements.

Die Erfindung wird vorzugsweise angewendet zur Errichtung begründbarer und steiler und/oder hoher Stützwände oder Lärmschutzwände aus einzelnen Elementen.The invention is preferably used for constructing reasonable and steeper and / or high retaining walls or noise barriers of individual elements.

Im Stand der Technik sind neben diversen Böschungssicherungssystemen und Stützwandsystemen verschiedene stapelbare Fertigteile aus Beton zur Herstellung von Stützwänden aus einzelnen Elementen bekannt.In the prior art, in addition to various slope protection systems and retaining wall systems various stackable precast concrete parts for the production of retaining walls of individual elements are known.

Nach DE 81 19 371 U1 , DE 88 11 825 U1 , DE 38 37 243 A1 und AT 004 473 U1 sind stapelbare Elemente für Stützwandsysteme bekannt, bei denen jeweils übereinander angeordnete Elemente miteinander verbunden werden, um die Standsicherheit dieser Stützwände zu erhöhen.To DE 81 19 371 U1 . DE 88 11 825 U1 . DE 38 37 243 A1 and AT 004 473 U1 are stackable elements for retaining wall systems are known in which each superposed elements are connected together to increase the stability of these retaining walls.

Nach AT 004 473 U1 ist ein Bauteil zur Errichtung von Stützwandelementen bekannt, bei dem an einem quaderförmigen Grundelement zumindest an einem Teil seiner Begrenzungsflächen eine oder mehr als eine Nut angeordnet ist, wobei diese Nut(en) zur formschlüssigen Verbindung aneinander anschließender Grundelemente eine leistenförmige Feder als Verbindungselement einsetzbar ist.To AT 004 473 U1 a component for the construction of supporting wall elements is known in which at a cuboidal base element at least at one Part of its boundary surfaces one or more than a groove is arranged, said groove (s) for the positive connection of adjoining basic elements a strip-shaped spring is used as a connecting element.

Nach DE 38 372 43 A1 ist ein Formstein mit einer endlos ausgebildeten Seitenwand und einer oberen und unteren Öffnung zur Aufnahme von Erdreich oder dergleichen für die Herstellung einer aus neben- und übereinander angeordneten Formsteinen gebildeten Mauer bekannt, wobei die Seitenwand einen maueraußen- und -innenseitigen Bereich sowie zwei diese miteinander verbindende Querwände aufweist, bei der im oberen Stimendbereich jeder Querwand eine von der Ebene der Stirnfläche abstehende Fixiernase und an der Innenseite jeder Querwand eine von dieser nach innen abstehende und mit der Unterkante der Querwand bündig abschließende Halteleiste vorgesehen ist.To DE 38 372 43 A1 is known a molded block with an endlessly formed side wall and an upper and lower opening for receiving soil or the like for the production of a juxtaposed and stacked molded blocks wall, wherein the side wall a wall outside and inside area and two connecting them together Transverse walls, in which in the upper Stimendbereich each transverse wall projecting from the plane of the end face fixing lug and on the inside of each transverse wall is provided from this inwardly projecting and flush with the lower edge of the transverse wall retaining strip.

Nach DE 88 11 825 U1 ist eine Stützwand bekannt, die ein im wesentlichen plattenförmiges Basiselement, welches eine parallel zu einer Seitenkante verlaufende Rippe aufweist, enthält, wobei ein im wesentlichen quaderförmiges Anschlusselement, welches mit einer zu einer Rippe passenden Linksnut versehen ist, angeordnet ist.To DE 88 11 825 U1 a support wall is known, which comprises a substantially plate-shaped base member which has a parallel to a side edge extending rib, wherein a substantially cuboid connecting element, which is provided with a matching rib to a left groove, is arranged.

Nachteilig ist bei den vorgenannten Anordnungen, dass diese bekannten Systeme nicht zur Herstellung relativ hoher oder steiler Stützwände geeignet sind, da diese Systeme nach dem Prinzip einer nicht rückverankerten und unbewehrten Schwergewichtswand wirken.A disadvantage of the aforementioned arrangements that these known systems are not suitable for the production of relatively high or steep retaining walls, since these systems act on the principle of a non-back anchored and unreinforced heavyweight wall.

Daneben sind Anordnungen zur Erstellung von Stützbauwerken und Steilböschungen mit kunststoffbewährter Erde bekannt, die in ihrer Erscheinung einer begrünten Stützwand nahe kommen.In addition, arrangements for the preparation of supporting structures and steep slopes with plastic-proven earth are known that come close in appearance to a greened retaining wall.

Nach DE 200 11 791.2 U1 ist eine Anordnung zur Errichtung von Stützbauwerken und Steilböschungen mit kunststoffbewährter Erde und dauerhafter Begrünung bekannt, bei der der erdseitige Bereich der Böschung aus horizontalen Schichten aufgebaut ist, zwischen denen Geokunststoftbewehrungen angeordnet sind, bei denen als verlorene Schalung dienende abgewinkelte Bewehrungsmatten angeordnet sind und bei denen zur Fixierung der verlorenen Schalung zwischen Schenkelflächen der abgewinkelten Bewehrungsmatten Abstandhalter angeordnet sind. Durch die Anordnung von rückverankerten Geotextilien ergibt sich für diese Böschungen eine gute Standsicherheit und eine sehr gute Begrünbarkeit.To DE 200 11 791.2 U1 is an arrangement for the construction of supporting structures and steep slopes with plastic-proven earth and permanent greening known in which the geographic area of the embankment is composed of horizontal layers, between which Geokunststoftbewehrungen are arranged in which serving as a lost formwork angled reinforcing mats are arranged and in which are arranged to fix the lost formwork between leg surfaces of the angled reinforcing mats spacers. The arrangement of back-anchored geotextiles results in a good stability and a very good reasonability for these slopes.

Nachteilig ist dabei, dass zur Vermeidung von Beeinträchtigungen der Tragfähigkeit durch Erosion eine Begrünung unentbehrlich ist.A disadvantage is that in order to avoid adverse effects on the carrying capacity by erosion a greening is indispensable.

Darüber hinaus ist es bekannt, Stützwände aus stapelbaren Fertigteilen zu errichten und in den Lagerfugen jeweils übereinander angeordneter Formsteine Geotextilien lose zu verlegen und erdseitig zu verankern.In addition, it is known to build support walls made of stackable precast elements and loosely lay geotextiles in the bearing joints of each stacked stones geo-textiles and anchor on the ground side.

Nachteilig ist dabei, dass eine Zugkrafteinleitung aus den Geotextilien in die stapelbaren Formsteine nur durch Reibung nur möglich ist, wenn die aus den stapelbaren Fertigteilen gebildete Stützwand einer ausreichend hohen Vertikalkraft ausgesetzt ist. Dies ist jedoch regelmäßig nicht der Fall.The disadvantage here is that a tensile force from the geotextiles in the stackable blocks only by friction is only possible if the support wall formed from the stackable precast parts is exposed to a sufficiently high vertical force. However, this is usually not the case.

Aus der US 2003/0118410 A1 oder auch aus US 6336773B1 ist ein stapelbares Fertigteil aus Beton bekannt, bei dem das Fertigteil mit einem Geogitter gesondert verbindbar ist. Nachteilig ist dabei, dass Geogitter und Fertigteil mittels gesonderter Stäbe miteinander verbunden werden müssen.From the US 2003/0118410 A1 or even out US 6336773B1 is known a stackable precast concrete, in which the finished part is separately connectable to a geogrid. The disadvantage here is that geogrids and finished part must be connected to each other by means of separate rods.

Ein derartiges Fertigteil entspreche dem Oberbegriff des Anspruchs 1 zeigt auch US-5156494 A .Such a finished part corresponds to the preamble of claim 1 also shows US-5156494A ,

Der Erfindung liegt die Aufgabe zugrunde, ein stapelbares Fertigteil aus Beton zur Herstellung von Stützwänden aus einzelnen Elementen anzugeben, das einfach herstellbar ist und auch bei geringem Eigengewicht die Herstellung von Stützwänden mit hoher Standsicherheit auch ohne Auflast und ohne aufwendige zusätzliche separate Rückverankerung ermöglicht.The invention has for its object to provide a stackable precast concrete for the production of supporting walls of individual elements, which is easy to produce and even with low weight allows the production of retaining walls with high stability even without ballast and without complex additional separate back anchoring.

Erfindungsgemäß wird die Aufgabe mit einer Anordnung gelöst, welche die in Anspruch 1 angegebene Merkmalskombination aufweist.According to the invention the object is achieved with an arrangement having the feature combination specified in claim 1.

Vorteilhafte Ausgestaltungen sind in den Unteransprüchen angegeben.Advantageous embodiments are specified in the subclaims.

Die erfindungsgemäße Anordnung ist insbesondere zur Herstellung von Stützwänden aus einzelnen Elementen geeignet. Sie enthält ein stapelbares Fertigteil aus Beton, bei dem ein Geogitter mit dem stapelbaren Fertigteil verbunden ist, wobei das Geogitter in das Fertigteil einbetoniert ist, und das Geogitter in einem Erdkörper verankerbar ist. in dem Fertigteil ist ein Körper aus Leichtstoff angeordnet, welcher bis zu mindestens einer Seite des Fertigteils reicht und entfernbar ist. Es ist auch möglich, dass das Fertigteil mit einem Geogitter verbunden ist, welches mit einem weiteren Geogitter verbindbar ist und dass das weitere Geogitter in einem Erdkörper verankerbar ist.The arrangement according to the invention is particularly suitable for the production of supporting walls from individual elements. It contains a stackable prefabricated concrete part, in which a geogrid is connected to the stackable finished part, wherein the geogrid is embedded in the finished part, and the geogrid is anchored in an earth body. in the finished part, a body made of lightweight material is arranged, which extends to at least one side of the finished part and is removable. It is also possible that the finished part is connected to a geogrid, which is connectable to another geogrid and that the other geogrid is anchored in an earth body.

Durch diese Anordnung gelingt es, eine Stützwand zu errichten, bei der jedes einzelne Element rückverankert werden kann, wobei die Verankerungslänge und die Art des zur Verankerung genutzten Geokunststoffes grundsätzlich beliebig ist und nach jeweiliger statischer Berechnung bestimmt werden kann. Die Abmessungen der Geogitter sind dabei nach den statischen Erfordernissen veränderbar. Besonders vorteilhaft ist es, das Geogitter unmittelbar in das Fertigteil aus Beton einzubetonieren; dadurch ist eine sichere Verankerung und Lasteinleitung in das Fertigteil sichergestellt. Durch die Anordnung miteinander koppelbarer Geogitter gelingt es, gegenseitiges Verschieben einzelner Formsteine zu verhindern, ohne diese jedoch aufwendig miteinander zu verbinden. Das Geogitter besteht vorzugsweise aus Kunststoff. Es kann vorteilhaft in das Fertigteil einbetoniert sein.By this arrangement, it is possible to build a retaining wall, in which each individual element can be anchored back, the anchoring length and the type of geosynthetics used for anchoring is basically arbitrary and can be determined by respective static calculation. The dimensions of the geogrids are variable according to the static requirements. It is particularly advantageous to embed the geogrid directly into the precast concrete element; This ensures secure anchoring and load transfer into the finished part. By arranging geogrids which can be coupled to one another, it is possible to prevent mutual shifting of individual molded blocks without, however, consuming them in a complex manner. The geogrid is preferably made of plastic. It may be advantageously embedded in the finished part.

Durch die Anordnung von Ausnehmungen in quaderförmigen Grundkörpern wird die Herstellung von trogähnlichen und bepflanzbaren Formsteinen ermöglicht. Die Rückverankerung jedes einzelnen Elementes erfordert keinen hohen Aufwand wie dies beispielsweise bei der Anordnung von Erdnägeln der Fall ist; es wird die Herstellung von sehr hohen und/oder sehr steilen Stützwänden ohne aufwendige Stahlbetonkonstruktionen oder Verbaukonstruktionen ermöglicht.The arrangement of recesses in cuboidal basic bodies, the production of trough-like and plantable molded blocks is made possible. The back anchoring of each element requires no high effort as is the case for example in the arrangement of pegs; It is the production of very high and / or very steep support walls made possible without expensive reinforced concrete structures or Verbaukonstruktionen.

Eine vorteilhafte Ausgestaltung sieht vor, dass in dem Fertigteil eine Bewehrung angeordnet ist, die zweckmäßigerweise aus Baustahl besteht. Die Fertigteile sind vorzugsweise gemäß DIN 1045 bewehrt und sind mit Leichtstoffkern, insbesondere aus Styropor bestehend, hergestellt. Die Fertigteile können mit einer Verankerung zum Verlegen versehen werden.An advantageous embodiment provides that in the finished part a reinforcement is arranged, which expediently consists of structural steel. The finished parts are preferably reinforced according to DIN 1045 and are made with lightweight core, especially made of polystyrene. The finished parts can be provided with an anchorage for laying.

Ferner ist es möglich, dass im Kern des Fertigteils ein Hohlraum angeordnet ist.Furthermore, it is possible that a cavity is arranged in the core of the finished part.

Der Körper aus Leichtstoff reicht in dem Fertigteil bis zu mindestens einer Seite des Fertigteiles und ist entfernbar.The body of lightweight material extends in the finished part to at least one side of the finished part and is removable.

Besonders vorteilhaft ist die Anordnung von Ausnehmungen in den Fertigteilen, in welchen ein Oberboden für Bepflanzungen gefüllt werden kann.Particularly advantageous is the arrangement of recesses in the finished parts, in which a topsoil can be filled for plantings.

Ferner ist es möglich, dass an dem Fertigteil Montageösen angeordnet sind.Furthermore, it is possible that assembly loops are arranged on the finished part.

Eine vorteilhafte Ausgestaltung sieht vor, dass unterhalb einer ersten Lage von Fertigteilen ein Bodenaustausch oder eine Sauberkeitsschicht angeordnet ist.An advantageous embodiment provides that below a first layer of finished parts, a soil replacement or a cleanliness layer is arranged.

Eine weiter Ausgestaltung besteht darin, dass in Ausnehmungen des Fertigteiles oder auf horizontalen Versätzen zu anderen Fertigteilen und/oder Stützwandelementen Erde und/oder Begrünungen angeordnet sind.A further embodiment consists in that earth and / or greenery are arranged in recesses of the finished part or on horizontal offsets to other finished parts and / or supporting wall elements.

In einer weiteren Ausgestaltungsform kann das Fertigteil als Sonderteil gestaltet werden, welches eine prismatische Grundform mit einem dreieckigen oder vieleckigen Grundriss aufweist. Es ist auch möglich, dass das Fertigteil eine prismatische Grundform mit einer dreieckigen Ansichtsfläche aufweist.In a further embodiment, the finished part can be designed as a special part, which has a prismatic basic shape with a triangular or polygonal floor plan. It is also possible that the finished part has a prismatic basic shape with a triangular view surface.

Die Erfindung wird im folgenden anhand eines Ausführungsbeispiels näher erläutert.The invention will be explained in more detail below with reference to an embodiment.

Dazu zeigen

Figur 1
eine isometrische Darstellung eines einzelnen erfindungsgemäßen Fertigteils,
Figur 2
eine zugehörige Seitenansicht,
Figur 3
eine Seitenansicht eines einzelnen erfindungsgemäßen Fertigteils in einer weiteren Ausführungsform,
Figur 4
einen Schnitt durch eine aus erfindungsgemäßen Fertigteilen hergestellte Stützwand,
Figur 5
einen Schnitt durch eine weitere Ausführungsform eines Erfindungsgemäßen Fertigteils,
Figur 6
eine Draufsicht eines ersten Sonderelementes,
Figur 7
eine Draufsicht eines zweiten Sonderelementes und
Figur 8
einen Ausschnitt einer Ansicht einer aus erfindungsgemäßen Fertigteilen errichteten Stützwand.
Show this
FIG. 1
an isometric view of a single finished part according to the invention,
FIG. 2
an associated side view,
FIG. 3
a side view of a single finished part according to the invention in a further embodiment,
FIG. 4
a section through a retaining wall made of finished parts according to the invention,
FIG. 5
a section through a further embodiment of a finished product according to the invention,
FIG. 6
a top view of a first special element,
FIG. 7
a plan view of a second special element and
FIG. 8
a section of a view of erected from the finished parts according to the support wall.

Figur 1 zeigt ein als Regelelement einsetzbares quaderförmiges Fertigteil 1 mit einer Elementbreite von etwa 1,0 m und einer Elementhöhe und einer Elementtiefe von etwa 50 cm, das aus Beton gefertigt ist. In das Fertigteil 1 ist ein Geogitter 2, das aus Kunststoff besteht und eine sehr hohe Zugfestigkeit aufweist, einbetoniert. FIG. 1 shows a usable as a control element rectangular precast element 1 with an element width of about 1.0 m and an element height and an element depth of about 50 cm, which is made of concrete. In the finished part 1 is a Geogrid 2, which is made of plastic and has a very high tensile strength, embedded in concrete.

Figur 2 zeigt eine Seitenansicht des in Figur 1 dargestellten als Regelelement einsetzbaren Formsteines 1, der aus Beton gefertigt ist; in dem quaderförmigen Fertigteil 1 ist eine Bewehrung 3, die aus Baustahl besteht, angeordnet; das Geogitter 2 ist in das Fertigteil 1 einbetoniert und tritt rechtwinkelig aus einer Rückseite des Fertigteiles 1 in dessen unterem Bereich aus. Die Länge des außerhalb des Fertigteiles 1 angeordneten Geogitters 2 ist durch die statische Bemessung bestimmt. FIG. 2 shows a side view of the in FIG. 1 shown used as a control element molded block 1, which is made of concrete; in the cuboid prefabricated part 1 is a reinforcement 3, which consists of structural steel arranged; the geogrid 2 is cast in the prefabricated part 1 and emerges at right angles from a rear side of the finished part 1 in its lower region. The length of the geogrid 2 arranged outside the finished part 1 is determined by the static design.

Figur 3 zeigt eine weitere Ausführungsform; dabei ist das Fertigteil 1 trogförmig ausgebildet. In dem im inneren Bereich des Fertigteiles 1 ist ein ebenfalls quaderförmiger Körper aus Leichtstoff 4, nämlich aus Styropor, angeordnet. In den Wandungen und in dem Bodenbereich des Fertigteiles 1 ist ebenfalls eine Bewehrung 3 angeordnet, die der Vermeidung von Rissbildungen im Beton dient. Das Geogitter 2 ist ebenfalls im unteren Bereich des Fertigteiles 1 angeordnet. FIG. 3 shows a further embodiment; In this case, the finished part 1 is formed trough-shaped. In which in the inner region of the finished part 1 is also a cuboid body made of lightweight material 4, namely made of styrofoam arranged. In the walls and in the bottom portion of the finished part 1, a reinforcement 3 is also arranged, which serves to avoid cracking in the concrete. The geogrid 2 is also arranged in the lower region of the finished part 1.

Figur 4 zeigt eine Stützwand, die mit erfindungsgemäßen Fertigteilen 1 errichtet wurde, in Schnittdarstellung. Die Fertigteile 1 sind nebeneinander und übereinander gestapelt, wobei die untere Reihe von Fertigteilen 1 auf einer Sauberkeitsschicht 5 aufgestellt wurde. Alle Fertigteile 1 mit luftseitigen Kontakt weisen eine Rückverankerung auf. Die Fertigteile 1 der oberen drei Reihen weisen ein Geogitter 2 auf, wobei die Länge dieser Geogitter 2 in unterschiedlichen Höhen als Ergebnis einer statischen Bemessung unterschiedlich ist. Drei der dargestellten Fertigteile 1 weisen an ihrer Rückseite ein relativ kurzes Geogitter 2 auf; diese Geogitter 2 sind jeweils mit einem weiteren Geogitter 2.1 verbunden, welches eine Rückverankerung in einen Erdkörper 6 bewirkt. Die Geogitter 2 der Fertigteile 1, die mit einem weiteren Geogitter 2.1 verbunden sind, sind mit einer Einheitslänge ausgebildet. FIG. 4 shows a supporting wall, which was erected with finished parts 1 according to the invention, in a sectional view. The finished parts 1 are stacked side by side and one above the other, the lower row of finished parts 1 being placed on a cleanliness layer 5. All finished parts 1 with air-side contact have a back anchoring. The finished parts 1 of the upper three rows have a geogrid 2, wherein the length of these geogrids 2 is different at different heights as a result of a static design. Three of the prefabricated parts 1 shown have a relatively short geogrid 2 on their rear side; These geogrids 2 are each connected to a further geogrid 2.1, which causes a back anchoring in an earth body 6. The geogrids 2 of the finished parts 1, which are connected to a further geogrid 2.1, are formed with a unit length.

Figur 5 zeigt eine weitere Ausführungsform eines erfindungsgemäßes Fertigteiles 1; der Kern dieses Fertigteiles 1 ist aus einem Leichtstoff 4 gefertigt, der zur Reduzierung des Gewichtes dient. Der aus Leichtstoff 4 gebildete Kern dieses Fertigteiles 1 ist von einer mit einer Bewehrung 3 bewehrten Betonwand vollflächig umhüllt. FIG. 5 shows a further embodiment of a finished part 1 according to the invention; the core of this finished part 1 is made of a lightweight material 4, which serves to reduce the weight. The formed of lightweight material 4 core this finished part 1 is completely covered by a reinforced with a reinforcement 3 concrete wall.

Figur 6 zeigt die Draufsicht eines ersten Sonderteiles 1.1. Bei diesem ersten Sonderteil 1.1 handelt es sich um ein aus zwei Quadern verschnittenen Grundkörper, der zur Herstellung von im Grundriss abgewinkelten Stützwänden dient. An der Rückseite eines jeden Teilquaders, der dieses erste Sonderteil 1.1 bildet, ist jeweils ein Geogitter 2 angeordnet. FIG. 6 shows the top view of a first special part 1.1. In this first special section 1.1 is a trimmed from two blocks basic body, which is used for the production of angled in the floor plan support walls. At the back of each partial cuboid, which forms this first special part 1.1, a geogrid 2 is arranged in each case.

Figur 7 zeigt ein zweites Sonderteil 1.2, welches ebenfalls zur Ausbildung von im Grundriss abgewinkelten Stützwänden geeignet ist, wobei dieses zweite Sonderteil 1.2 eine prismatische Form aufweist, wobei der Grundriss dieses prismatischen Körpers ein gleichschenkliges Dreieck bildet. FIG. 7 shows a second special part 1.2, which is also suitable for the formation of angled in plan view of the support walls, said second special part 1.2 has a prismatic shape, wherein the floor plan of this prismatic body forms an isosceles triangle.

Figur 8 zeigt die Ansicht einer aus einer Vielzahl von Fertigteilen 1 gebildeten Stützwand, wobei an der links dargestellten seitlichen Begrenzung der Stützwand dritte Sonderteile 1.3 angeordnet sind, die ebenfalls eine prismatische Form aufweisen. Die hier dargestellten Prismen weisen eine dreieckige Ansicht auf. Die in den Figuren 6 bis 8 dargestellten Sonderelemente 1.1, 1.2, 1.3 sind mit beliebigen Winkeln herstellbar, so dass Stützwände mit beliebigen Verlauf im Grundriss sowie mit beliebigen Rand- und Kopfausbildungen herstellbar sind. FIG. 8 shows the view of a support wall formed from a plurality of prefabricated parts 1, wherein on the left lateral boundary of the support wall third special parts 1.3 are arranged, which also have a prismatic shape. The prisms shown here have a triangular view. The in the FIGS. 6 to 8 shown special elements 1.1, 1.2, 1.3 can be produced with any angle, so that support walls with arbitrary course in plan and with any edge and head training can be produced.

Claims (11)

  1. Stackable concrete building block (1), especially for manufacturing retaining walls out of single elements, characterised in that the building block (1) is connected to a geogrid (2), whereas the geogrid (2) is set in concrete in the building block (1) and that the geogrid (2) can be anchored in a ground body (6) and that a light-weight material body (4) is arranged in the building block (1) for reducing weight and that the light-weight material body (4) being in the building block (1) reaches to at least one side of the building block (1) and that it can be removed.
  2. Stackable building block (1) according to claim 1, characterised in that the building block (1) is connected to a geogrid (2), that the geogrid (2) can be connected to another geogrid (2.1) and that the other geogrid (2.1) can be anchored in a ground body (6).
  3. Stackable building block (1) according to claim 1 or 2, characterised in that geogrids (2) of several building blocks (1) can be connected to each other.
  4. Stackable building block (1) according to one of the preceding claims, characterised in that an armour (3) is arranged in the building block (1).
  5. Stackable building block (1) according to claim 4, characterized in that the armour (3) consists of structural steel.
  6. Stackable building block (1) according to one of the preceding claims, characterised in that the building block (1) comprises a rectangular form or a at least nearly rectangular basic form with at least one recess.
  7. Stackable building block (1) according to one of the preceding claims, characterised in that the geogrid (2) consists of plastic material.
  8. Stackable building block (1) according to one of the preceding claims, characterised in that assembly ears are arranged on the building block (1).
  9. Stackable building block (1) according to one of the claims 1 to 5, characterised in that the building block (1) comprises a prismatic basic form with a polygonal floor plan and that it forms a first special element (1.1).
  10. Stackable building block (1) according to one of the claims 1 to 5, characterised in that the building block (1) comprises a prismatic basic form with a triangular view face and that it forms a third special element (1.3).
  11. Stackable building block (1) according to one of the claims 1 to 5, characterised in that the building block (1) forms a prismatic basic form with a triangular floor plan and that it forms a second special element (1.2).
EP03022793A 2002-10-12 2003-10-11 Concrete building block for retaining walls with geogrid retention Expired - Lifetime EP1408161B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20215715U DE20215715U1 (en) 2002-10-12 2002-10-12 Precast part made of concrete for retaining walls with geogrid rear suspension
DE20215715U 2002-10-12

Publications (3)

Publication Number Publication Date
EP1408161A2 EP1408161A2 (en) 2004-04-14
EP1408161A3 EP1408161A3 (en) 2005-12-28
EP1408161B1 true EP1408161B1 (en) 2010-12-15

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EP03022793A Expired - Lifetime EP1408161B1 (en) 2002-10-12 2003-10-11 Concrete building block for retaining walls with geogrid retention

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EP (1) EP1408161B1 (en)
AT (1) ATE491846T1 (en)
DE (2) DE20215715U1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2860811A1 (en) * 2003-10-13 2005-04-15 Freyssinet Int Stup REINFORCED GROUND WORK AND METHOD FOR ITS CONSTRUCTION
DE202004001058U1 (en) * 2004-01-24 2004-04-22 Herold, Andreas, Dipl.-Ing. Precast part made of concrete for retaining walls with geogrid rear suspension
DE102008062820B4 (en) * 2008-12-23 2014-02-27 Andreas Herold inclined structure
US20220090343A1 (en) * 2020-09-22 2022-03-24 Big Block, Inc Landscaping wall structure and form

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5807030A (en) * 1993-03-31 1998-09-15 The Reinforced Earth Company Stabilizing elements for mechanically stabilized earthen structure
US6536994B2 (en) * 2001-07-12 2003-03-25 Keystone Retaining Wall Systems, Inc. Grooved retaining wall block and system

Also Published As

Publication number Publication date
ATE491846T1 (en) 2011-01-15
DE50313318D1 (en) 2011-01-27
EP1408161A2 (en) 2004-04-14
DE20215715U1 (en) 2003-02-27
EP1408161A3 (en) 2005-12-28

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