EP0290941B1 - Method for securing retaining walls - Google Patents

Method for securing retaining walls Download PDF

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Publication number
EP0290941B1
EP0290941B1 EP88107141A EP88107141A EP0290941B1 EP 0290941 B1 EP0290941 B1 EP 0290941B1 EP 88107141 A EP88107141 A EP 88107141A EP 88107141 A EP88107141 A EP 88107141A EP 0290941 B1 EP0290941 B1 EP 0290941B1
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EP
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Prior art keywords
retaining wall
hole
load
anchor
cement material
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EP88107141A
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German (de)
French (fr)
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EP0290941A1 (en
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Kurt G. Dipl.-Ing. Ross
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Priority to AT88107141T priority Critical patent/ATE59073T1/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • 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
    • E02D29/0233—Retaining or protecting walls comprising retention means in the backfill the retention means being anchors
    • 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
    • E02D29/0258—Retaining or protecting walls characterised by constructional features
    • E02D29/0275—Retaining or protecting walls characterised by constructional features cast in situ
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D37/00—Repair of damaged foundations or foundation structures

Definitions

  • the invention relates to a method for securing retaining walls with soil behind it (according to the preamble of claim 1, bores being drilled through the retaining wall and cavities in the soil being flushed out behind the retaining wall using high-pressure water jets, and reinforcing bars with cement material being used in the cavities are (cf. DE-A 3408461).
  • the earth pressure can be intercepted by removing the soil behind the retaining wall and building an angled retaining wall there, so that the old retaining wall is only a facing brickwork.
  • the object of the invention is to provide a method of the type mentioned in such a way that an effective securing of the retaining wall is achieved with little effort in terms of work and material, without this having to be converted into a heavyweight wall to absorb the entire earth pressure.
  • the earth anchors arranged in a suitable distribution take over the earth pressure and thus relieve the load on the retaining wall. There is a self-supporting needling of the earth body without the static participation of the retaining wall while maintaining the old building structure.
  • the force of the earth pressure in the ground anchors occurs through their thickened heads (load distribution elements) on the back of the wall, which form load distribution bodies.
  • FIG. 1 which is, for example, an old stone wall with soil 2 behind it, is first cleaned of soil material, vegetation and organic constituents on the accessible wall surfaces. All loose and damaged parts are removed and the areas to be grouted are cleaned by high pressure water jets and sand blasting, so that a clean contact surface with open pores is created.
  • the masonry core is solidified in that the wall structure by pressing one Trass lime suspension is stabilized and glued. Thanks to the highly flowable trass lime suspension, which is compatible with the old grouting, all cavities in the retaining wall are pressed. These renovation measures give the masonry a self-contained structure and thus at least corresponds in its strength to the original condition.
  • holes 3 are made in the retaining wall 1 at a distance next to one another and possibly also offset from one another, preferably in the lower third point, which are preferably inclined at most 15 ° to the horizontal.
  • the diameter of these holes is 80 mm, for example.
  • a load distribution cavity 6 is flushed out on the back of the retaining wall 1, said cavity being essentially flat on the back of the wall and having, for example, a diameter of 50 cm and a depth of up to 50 cm .
  • the water accumulated in the load distribution cavity 6 during flushing and the soil dissolved therein is sucked off by means of a suction hose.
  • an anchor hole 7 is subsequently rinsed out in the soil 2 in the extension of the bore 3.
  • the anchor hole 7 has a diameter of 80 mm, for example; its length depends on the static requirements, which are essentially determined by the soil mechanics. The length is, for example, 2 to 4 m. This state is shown in Fig. 2.
  • a reinforcement rod 8 (needle anchor) is inserted through the bore 3, for example a ribbed reinforcement steel with a diameter of 22 mm. Spacers hold the reinforcement bar 8 in the center of the anchor hole 7. The reinforcement bar 8 extends into the hole 3 (FIG. 3).
  • a filler bore 9 which opens obliquely downward into the load distribution cavity 6, is drilled through which cement material, for example a highly flowable cement suspension or cement mortar, is introduced. This cement material completely fills the anchor hole 7 and the load distribution cavity 6 and the bore 3. Then the hole 3 and the filling hole 9 are closed by mortar.
  • cement material for example a highly flowable cement suspension or cement mortar
  • the inserted reinforcing bar 8 forms, together with the cement material surrounding it, a nail-shaped or needle-shaped ground anchor 10, the head 11 of which forms a load distribution element which absorbs the earth pressure and introduces it into the ground anchor 10.
  • the retaining wall 1 is largely relieved of earth pressure in this way.
  • the ground anchor 10 By extending the ground anchor 10 into the assigned flush hole 3 of the retaining wall 1, the latter is connected and additionally stabilized after relief from the earth pressure.
  • the refurbished retaining wall 1 shown in Fig. 4 after completion of the work is secured against the effects of earth pressure and only has to carry itself.
  • the original structure of the retaining wall 1 has been fully preserved.

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  • Engineering & Computer Science (AREA)
  • Structural 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)
  • Environmental & Geological Engineering (AREA)
  • Piles And Underground Anchors (AREA)
  • Retaining Walls (AREA)
  • Paper (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Fencing (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)

Abstract

Several needle-shaped ground anchors (10) are constructed on the rear side of the wall. To this end, a bore (3) is in each case bored through the retaining wall (1). A load-distribution hollow space and an anchor hole extending into the ground are flushed out by means of high-pressure water jets. Cement material is poured into the anchor hole after a reinforcing bar (8) is inserted. The cement material, together with the reinforcing bar (8), forms the ground anchor (10).

Description

Die Erfindung betrifft ein Verfahren zur Sicherung von Stützmauern mit dahinter anstehendem Erdreich (gemäß dem Oberbegriff des Anspruchs 1, wobei Bohrungen durch die Stützmauer gebohrt und hinter der Stützmauer Hohlräume im Erdreich mittels Hochdruck-Wasserstrahlen ausgespült werden, und wobei in den Hohlräumen Bewehrungsstäbe mit Zementmaterial eingesetzt werden (vgl. dazu DE-A 3408461).The invention relates to a method for securing retaining walls with soil behind it (according to the preamble of claim 1, bores being drilled through the retaining wall and cavities in the soil being flushed out behind the retaining wall using high-pressure water jets, and reinforcing bars with cement material being used in the cavities are (cf. DE-A 3408461).

Zur Sanierung alter Stützmauern reicht es in den meisten Fällen nicht aus, wieder einen festen Mauerverbund herzustellen, indem die Stützmauer nach den erforderlichen Reinigungsarbeiten neu verfugt und der Mauerkern durch Verpressen mit Zementmaterial verfestigt wird. Dadurch kann zwar die Festigkeit und der Verbund des Mauerwerkskörpers selbst wieder hergestellt werden. Da diese alten Stützmauern aber in vielen Fällen einen in statischer Hinsicht unzureichenden Mauerquerschnitt aufweisen und oftmals auch ohne Fundament errichtet wurden, ist auch eine in dieser Weise sanierte Stützmauer durch den Erddruck des dahinter anstehenden Erdreichs gefährdet.To renovate old retaining walls, it is in most cases not sufficient to re-establish a solid wall composite by re-grouting the retaining wall after the necessary cleaning work and consolidating the core of the wall by pressing with cement material. As a result, the strength and the bond of the masonry body itself can be restored. However, since these old retaining walls in many cases have an insufficient wall cross-section from a structural point of view and are often built without a foundation, a retaining wall that has been renovated in this way is also endangered by the earth pressure of the soil behind it.

Ein Abfangen des Erddrucks kann dadurch erfolgen, daß das Erdreich hinter der Stützmauer abgetragen und dort eine Winkelstützmauer errichtet wird, so daß die alte Stützmauer nur noch ein Verblendmauerwerk darstellt.The earth pressure can be intercepted by removing the soil behind the retaining wall and building an angled retaining wall there, so that the old retaining wall is only a facing brickwork.

Diese Maßnahme ist aber mit sehr großem Aufwand verbunden und oftmals schon deswegen nicht durchführbar, weil sich hinter diesen alten Stützmauern Gebäude, Friedhöfe oder wertvolle historische Gartenanlagen befinden. Außerdem ist in vielen Fällen die Standsicherheit der alten Stützmauer so beeinträchtigt, daß Teile der Mauer einstürzen, wenn dahinter größere Aushubarbeiten ausgeführt werden. Dann geht historische Bauwerkssubstanz verloren, die durch die Sanierungs- und Sicherungsmaßnahmen gerade erhalten werden soll.However, this measure involves a great deal of effort and is often not feasible because there are buildings, cemeteries or valuable historical gardens behind these old retaining walls. In addition, the stability of the old retaining wall is in many cases so impaired that parts of the wall collapse when larger excavation work is carried out behind it. Then historical building substance is lost, which is to be preserved through the renovation and security measures.

Bei einem bekannten Verfahren der eingangs genannten Gattung (DE-A 3 408 461) wird deshalb in dem hinter der Stützmauer anstehenden Erdreich ein verhältnismäßig großer Hohlraum ausgespült und mit Zementmaterial verfüllt, wobei durch vorherige Reinigung der Mauerrückseite eine intensive Verbindung mit der Stützseite angestrebt wird. Dadurch wird über die gesamte Länge der Stützmauer ein mit dieser zusammenhängender Körper gebildet, der zusammen mit der verfugten und verfestigten Stützmauer eine statisch vollständig nachprüfbare Schwergewichtsmauer bildet, die den Erddruck aufnimmt. Dieses Verfahren löst zwar die geschilderten Probleme, ist aber mit einem erheblichen Aufwand an Arbeit und Material verbunden.In a known method of the type mentioned (DE-A 3 408 461), a relatively large cavity is therefore rinsed out in the soil behind the retaining wall and filled with cement material, an intensive connection with the supporting side being sought by prior cleaning of the back of the wall. As a result, a body connected with this is formed over the entire length of the retaining wall, which, together with the jointed and solidified retaining wall, forms a statically fully verifiable heavy weight wall which absorbs the earth pressure. Although this method solves the problems described, it is associated with a considerable amount of work and material.

Bei einem anderen bekannten Verfahren (AT-B 217 676) werden ausgehend von der Stützmauer nur einzelne nach hinten verlaufende Pfeiler bzw. Trennwände dadurch errichtet, daß mehrere hintereinander und untereinander liegende Bereiche mit einem Injektionsmaterial ausgepreßt werden, wobei Bewehrungsstäbe eingelegt werden können, die bis in die Stützmauer reichen. Dadurch wird jedoch keine Schwergewichtswirkung der Mauer erzielt, weil die Mauer nur an wenigen Punkten mit den dahinter ausgebildeten Pfeilern verbunden ist.In another known method (AT-B 217 676), starting from the retaining wall, only individual pillars or partition walls running to the rear are erected in that several areas lying one behind the other and one below the other are pressed out with an injection material, whereby reinforcing bars can be inserted up to reach into the retaining wall. However, this does not result in a heavyweight effect of the wall, because the wall is only connected to the pillars formed behind it at a few points.

Aufgabe der Erfindung ist es, ein Verfahren der eingangs genannten Gattung so auszubilden, daß mit geringem Aufwand an Arbeit und Material eine wirksame Sicherung der Stützmauer erreicht wird, ohne daß diese zur Aufnahme des gesamten Erddrucks in eine Schwergewichtsmauer umgewandelt werden müßte.The object of the invention is to provide a method of the type mentioned in such a way that an effective securing of the retaining wall is achieved with little effort in terms of work and material, without this having to be converted into a heavyweight wall to absorb the entire earth pressure.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.This object is achieved according to the invention by the characterizing features of claim 1.

Die Ausbildung von nagel- oder nadelförmigen Erdankern auf der Mauerrückseite erfolgt ausschließlich durch die Stützmauer hindurch. Diese Arbeiten können deshalb auch ausgeführt werden, wenn die Erdoberfläche in diesem Bereich nicht zugänglich ist, beispielsweise weil sich dort Gebäude o.dgl. befinden.The formation of nail or needle-shaped ground anchors on the back of the wall takes place exclusively through the retaining wall. This work can therefore also be carried out if the surface of the earth is not accessible in this area, for example because buildings or the like are located there. are located.

Die in geeigneter Verteilung angeordneten Erdanker übernehmen den Erddruck und entlasten somit die Stützmauer. Es erfolgt eine selbsttragende Vernadelung des Erdkörpers ohne statische Mitwirkung der Stützmauer unter Beibehaltung der alten Bausubstanz.The earth anchors arranged in a suitable distribution take over the earth pressure and thus relieve the load on the retaining wall. There is a self-supporting needling of the earth body without the static participation of the retaining wall while maintaining the old building structure.

Die Krafteinleitung des Erddrucks in die Erdanker erfolgt durch deren verdickte Köpfe (Lastverteilungselemente) an der Mauerrückseite, die Lastverteilungskörper bilden.The force of the earth pressure in the ground anchors occurs through their thickened heads (load distribution elements) on the back of the wall, which form load distribution bodies.

Nur zusätzlich und ohne statische Notwendigkeit zur Aufnahme des Erddrucks kann eine Verbindung der Erdanker mit der Stützmauer dadurch hergestellt werden, daß sich der Bewehrungsstab bis in die Bohrung der Stützmauer erstreckt und dort ebenfalls durch Einfüllen von Zementmaterial befestigt wird. Auf diese Weise wird die Standfestigkeit der Stützmauer noch erhöht.Only in addition and without a static need to absorb the earth pressure can a connection of the ground anchors be made with the retaining wall in that the reinforcing bar extends into the hole in the retaining wall and is also fastened there by filling in cement material. In this way, the stability of the retaining wall is increased.

Weitere vorteilhafte Ausgestaltungen des Erfindungsgedankens sind Gegenstand weiterer Unteransprüche.Further advantageous embodiments of the inventive concept are the subject of further dependent claims.

Die Erfindung wird nachfolgend an einem Ausführungsbeispiel näher erläutert, das in der Zeichnung dargestellt ist. Die Fig. 1 bis 5 zeigen jeweils in einem senkrechten Schnitt eine Stützmauer mit dahinter anstehendem Erdreich, wobei die verschiedenen Phasen der Herstellung eines Erdankers dargestellt sind. Die in Fig. 1 gezeigte Stützmauer 1, die beispielsweise eine alte Steinmauer mit dahinter anstehendem Erdreich 2 ist, wird zunächst an den zugänglichen Mauerflächen von Erdmaterial, Bewuchs und organischen Bestandteilen gesäubert. Alle losen und schadhaften Teile werden entfernt und die zu verfugenden Bereiche werden durch Hochdruck-Wasserstrahlen und Sandstrahlen gereinigt, so daß eine saubere Kontaktfläche mit offenen Poren entsteht.The invention is explained in more detail below using an exemplary embodiment which is illustrated in the drawing. 1 to 5 each show in a vertical section a retaining wall with the soil behind it, the various phases of the manufacture of an earth anchor being shown. The retaining wall 1 shown in FIG. 1, which is, for example, an old stone wall with soil 2 behind it, is first cleaned of soil material, vegetation and organic constituents on the accessible wall surfaces. All loose and damaged parts are removed and the areas to be grouted are cleaned by high pressure water jets and sand blasting, so that a clean contact surface with open pores is created.

Von der Maueraußenseite her wird Trasskalkmörtel aufgespritzt und in die Fugen eingebracht. Unmittelbar danach werden die Steinköpfe an der Maueraußenfläche abgewaschen und nach ausreichender Erhärtung des Fugenmaterials durch vorsichtige Wasserstrahl-Bearbeitung gereinigt.Trass lime mortar is sprayed on from the outside of the wall and placed in the joints. Immediately afterwards, the stone heads on the outer surface of the wall are washed off and, after the joint material has hardened sufficiently, cleaned by careful water jet treatment.

Der Mauerwerkskern wird dadurch verfestigt, daß das Mauergefüge durch Verpressen einer Trasskalk-Suspension stabilisiert und verklebt wird. Durch die hochfließfähige, mit der Altverfugung verträglichen Trasskalk-Suspension werden alle Hohlräume der Stützmauer verpreßt. Das Mauerwerk erhält durch diese Sanierungsmaßnahmen ein in sich geschlossenes Gefüge und entspricht damit in seiner Festigkeit zumindest dem ursprünglichen Zustand.The masonry core is solidified in that the wall structure by pressing one Trass lime suspension is stabilized and glued. Thanks to the highly flowable trass lime suspension, which is compatible with the old grouting, all cavities in the retaining wall are pressed. These renovation measures give the masonry a self-contained structure and thus at least corresponds in its strength to the original condition.

Anschließend werden in der Stützmauer 1 im Abstand nebeneinander und ggf. auch versetzt zueinander, vorzugsweise im unteren Drittelpunkt mehrere Bohrungen 3 ausgeführt, die vorzugsweise höchstens 15° gegen die Horizontale geneigt sind. Der Durchmesser dieser Bohrungen beträgt beispielsweise 80 mm.Subsequently, several holes 3 are made in the retaining wall 1 at a distance next to one another and possibly also offset from one another, preferably in the lower third point, which are preferably inclined at most 15 ° to the horizontal. The diameter of these holes is 80 mm, for example.

Mittels einer in die Bohrung 3 eingeführten Hochdrucklanze 4 mit Spülkopf 5 wird an der Rückseite der Stützmauer 1 ein Lastverteilungs-Hohlraum 6 ausgespült, der im wesentlichen flach an der Mauerrückseite liegt und beispielsweise einen Durchmesser von 50 cm und eine Tiefe von bis zu 50 cm hat. Das beim Spülen im Lastverteilungs-Hohlraum 6 angesammelte Wasser und das darin gelöste Erdreich wird mittels eines Saugschlauchs abgesaugt.By means of a high-pressure lance 4 with flushing head 5 inserted into the bore 3, a load distribution cavity 6 is flushed out on the back of the retaining wall 1, said cavity being essentially flat on the back of the wall and having, for example, a diameter of 50 cm and a depth of up to 50 cm . The water accumulated in the load distribution cavity 6 during flushing and the soil dissolved therein is sucked off by means of a suction hose.

In gleicher Weise wird anschließend in Verlängerung der Bohrung 3 ein Ankerloch 7 im Erdreich 2 ausgespült. Das Ankerloch 7 hat beispielsweise einen Durchmesser von 80 mm; seine Länge richtet sich nach den statischen Anforderungen, die im wesentlichen durch die Bodenmechanik vorgegeben werden. Die Länge beträgt beispielsweise 2 bis 4 m. Dieser Zustand ist in Fig. 2 gezeigt.In the same way, an anchor hole 7 is subsequently rinsed out in the soil 2 in the extension of the bore 3. The anchor hole 7 has a diameter of 80 mm, for example; its length depends on the static requirements, which are essentially determined by the soil mechanics. The length is, for example, 2 to 4 m. This state is shown in Fig. 2.

Durch die Bohrung 3 wird ein Bewehrungsstab 8 (Nadelanker) eingeführt, beispielsweise ein gerippter Bewehrungsstahl von 22 mm Durchmesser. Abstandhalter halten den Bewehrungsstab 8 mittig im Ankerloch 7. Der Bewehrungsstab 8 ragt bis in die Bohrung 3 (Fig. 3).A reinforcement rod 8 (needle anchor) is inserted through the bore 3, for example a ribbed reinforcement steel with a diameter of 22 mm. Spacers hold the reinforcement bar 8 in the center of the anchor hole 7. The reinforcement bar 8 extends into the hole 3 (FIG. 3).

Oberhalb der Bohrung 3 wird eine schräg nach unten in den Lastverteilungs-Hohlraum 6 mündende Einfüllbohrung 9 gebohrt, durch die Zementmaterial, beispielsweise eine hochfließfähige Zementsuspension oder Zementmörtel, eingebracht werden. Dieses Zementmaterial füllt das Ankerloch 7 und den Lastverteilungs-Hohlraum 6 sowie die Bohrung 3 vollständig. Anschließend werden die Bohrung 3 und die Einfüllbohrung 9 durch Mörtel verschlossen.Above the bore 3, a filler bore 9, which opens obliquely downward into the load distribution cavity 6, is drilled through which cement material, for example a highly flowable cement suspension or cement mortar, is introduced. This cement material completely fills the anchor hole 7 and the load distribution cavity 6 and the bore 3. Then the hole 3 and the filling hole 9 are closed by mortar.

Der eingelegte Bewehrungsstab 8 bildet zusammen mit dem ihn umgebenden Zementmaterial einen nagel- oder nadelförmigen Erdanker 10, dessen Kopf 11 ein Lastverteilungselement bildet, das den Erddruck aufnimmt und in den Erdanker 10 einleitet. Die Stützmauer 1 wird auf diese Weise weitgehend vom Erddruck entlastet.The inserted reinforcing bar 8 forms, together with the cement material surrounding it, a nail-shaped or needle-shaped ground anchor 10, the head 11 of which forms a load distribution element which absorbs the earth pressure and introduces it into the ground anchor 10. The retaining wall 1 is largely relieved of earth pressure in this way.

Durch die Verlängerung des Erdankers 10 in das zugeordnete Spülloch 3 der Stützmauer 1 wird diese angebunden und nach der Entlastung vom Erddruck zusätzlich stabilisiert.By extending the ground anchor 10 into the assigned flush hole 3 of the retaining wall 1, the latter is connected and additionally stabilized after relief from the earth pressure.

Die in Fig. 4 nach Abschluß der Arbeiten gezeigte sanierte Stützmauer 1 ist gegen die Auswirkungen des Erddrucks gesichert und muß nur noch sich selbst tragen. Die ursprüngliche Bauwerkssubstanz der Stützmauer 1 ist dabei in vollem Umfang erhalten geblieben.The refurbished retaining wall 1 shown in Fig. 4 after completion of the work is secured against the effects of earth pressure and only has to carry itself. The original structure of the retaining wall 1 has been fully preserved.

Claims (6)

1. Method for securing retaining walls with earth in place behind them, whereby holes (3) are drilled through the retaining wall (1) and cavities (6) in prescribed dimensions are flushed out of the earth behind the retaining wall (1) by means of high-pressure water jets and anchor holes (7) are produced, and whereby strengthening rods (8) are inserted in the anchor holes (7) with cement material, characterised in that, in the area of each single hole (3) at the rear side of the retaining wall (1), a separate load-distributing cavity (6) is flushed out and, in extension of the hole (3), an anchor hole (7) extending into the earth (1) is flushed out by means of high-pressure water jets and a strengthening rod (8) is inserted in the load-distributing cavity (6) and that each anchor hole (7) and the corresponding load-distributing cavity (6) are completely filled with the cement material in order to form a needle-shaped ground anchor (10) which has a thickened load-distributing head (11).
2. Method according to Claim 1, characterised in that the strengthening rod (8) extends into the hole (3) of the retaining wall (1) and is similarly fixed there by filling in cement material.
3. Method according to Claim 1, characterised in that, above the hole (3), a filling hole (9) opening obliquely downwards into the load-distributing cavity (6) is drilled, through which the cement material is filled.
4. Method according to Claim 1, characterised in that the cement material is a largely liquid cement suspension.
5. Method according to Claim 1, characterised in that the water injected for the flushing, together with the dissolved soil, is extracted from the load-distributing cavity (6) and the anchor hole (7) by means of a suction hose.
6. Method according to Claim 1, characterised in that the retaining wall (1) is cleaned and pointed on the visible side before the drilling of the holes (3) and that its masonry core is strengthened by injection.
EP88107141A 1987-05-14 1988-05-04 Method for securing retaining walls Expired - Lifetime EP0290941B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88107141T ATE59073T1 (en) 1987-05-14 1988-05-04 PROCEDURE FOR SECURING RETAINING WALLS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3716100 1987-05-14
DE19873716100 DE3716100A1 (en) 1987-05-14 1987-05-14 METHOD FOR SECURING SUPPORT WALLS

Publications (2)

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EP0290941A1 EP0290941A1 (en) 1988-11-17
EP0290941B1 true EP0290941B1 (en) 1990-12-12

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EP88107141A Expired - Lifetime EP0290941B1 (en) 1987-05-14 1988-05-04 Method for securing retaining walls

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EP (1) EP0290941B1 (en)
AT (1) ATE59073T1 (en)
DE (2) DE3716100A1 (en)
ES (1) ES2023229B3 (en)
GR (1) GR3001594T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001077445A1 (en) 2000-04-11 2001-10-18 Stump Spezialtiefbau Gmbh Method and device for the production of back-cut cavities
EP1553230A2 (en) 2004-01-10 2005-07-13 Kurt G. Ross Method for rehabilitating retaining walls
DE10323141B4 (en) * 2003-05-22 2005-12-22 Ross, Kurt G., Dipl.-Ing. Method for the static securing of retaining walls and filling packing therefor
EP2141287A1 (en) 2008-07-01 2010-01-06 Bau-Sanierungstechnik GmbH Method of constructing a retaining wall

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Publication number Priority date Publication date Assignee Title
DE19754997B4 (en) * 1997-12-11 2012-04-05 Gerd Geyer Process for the rehabilitation of heavyweight walls
DE19808020C2 (en) 1998-02-26 2000-09-21 Kurt G Ross Procedure for the renovation of retaining walls
KR100468035B1 (en) * 2002-06-19 2005-01-27 주식회사 도담이앤씨 A Precast Concrete Block for Retaining-Wall and Construction Method of Retaining-Wall for using Top-down Method
DE102006018692A1 (en) * 2006-04-21 2007-10-25 Ross, Kurt G., Dipl.-Ing. Method for securing retaining walls
DE102008018382A1 (en) 2008-04-11 2009-10-15 Bau-Sanierungstechnik Gmbh Method for securing retaining walls
FR2969673B1 (en) * 2010-12-23 2013-02-08 Terre Armee Int METHOD FOR MODIFYING A WORK IN REINFORCED SOIL

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WO2001077445A1 (en) 2000-04-11 2001-10-18 Stump Spezialtiefbau Gmbh Method and device for the production of back-cut cavities
DE10323141B4 (en) * 2003-05-22 2005-12-22 Ross, Kurt G., Dipl.-Ing. Method for the static securing of retaining walls and filling packing therefor
EP1553230A2 (en) 2004-01-10 2005-07-13 Kurt G. Ross Method for rehabilitating retaining walls
DE102004001559B4 (en) * 2004-01-10 2014-07-03 Bau-Sanierungstechnik Gmbh Method for intercepting retaining walls
EP2141287A1 (en) 2008-07-01 2010-01-06 Bau-Sanierungstechnik GmbH Method of constructing a retaining wall
DE102008030671A1 (en) 2008-07-01 2010-01-07 Bau-Sanierungstechnik Gmbh Method for securing retaining walls

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DE3861259D1 (en) 1991-01-24
ES2023229B3 (en) 1992-01-01
ATE59073T1 (en) 1990-12-15
DE3716100A1 (en) 1988-12-01
EP0290941A1 (en) 1988-11-17
GR3001594T3 (en) 1992-11-23

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