EP0290941B1 - Méthode pour protéger des murs de soutènement - Google Patents

Méthode pour protéger des murs de soutènement 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
Authority
EP
European Patent Office
Prior art keywords
retaining wall
hole
load
anchor
cement material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88107141A
Other languages
German (de)
English (en)
Other versions
EP0290941A1 (fr
Inventor
Kurt G. Dipl.-Ing. Ross
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT88107141T priority Critical patent/ATE59073T1/de
Publication of EP0290941A1 publication Critical patent/EP0290941A1/fr
Application granted granted Critical
Publication of EP0290941B1 publication Critical patent/EP0290941B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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.

Landscapes

  • 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)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Retaining Walls (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Fencing (AREA)
  • Paper (AREA)

Claims (6)

1. Procédé pour protéger des murs de soutènement du terrain qui se trouve derrière eux, dans lequel des trous (3) sont forés dans le mur de soutènement (1) et dans lequel des cavités (6) de dimensions prédéterminées sont creusées dans le terrain au moyen de jets d'eau à haute pression, dans lequel des trous d'ancrage (7) sont réalisés et dans lequel des barres d'armature (8) avec un matériau à base de ciment sont insérés dans les trous d'ancrage (7), caractérisé en ce que, dans la zone de chaque trou (3), une cavité de répartition des charges (6) séparée est creusée sur la face postérieure du mur de soutènement (1) et en ce que, dans le prolongement du trou (3), un trou d'ancrage (7) s'étendant dans le terrain (1), est creusé au moyen d'un jet d'eau à haute pression, en ce que, dans le trou d'ancrage (7) et dans la cavité de répartition des charges (6), une barre d'armature (8) est insérée et en ce que chaque trou d'ancrage (7) et dans la cavité de répartition des charges correspondantes (6) sont remplis complètement d'un matériau à base de ciment, de manière à former un ancrage (10) en forme d'aiguille, présentant une tête de répartition des charges (11) plus épaisse.
2. Procédé selon la revendication 1, caractérisé en ce que la barre d'armature (8) s'étend jusque dans le trou (3) du mur de soutènement (1) et y est fixée également par remplissage avec un matériau à base de ciment.
3. Procédé selon la revendication 1, caractérisé en ce qu'un trou de remplissage (9) est foré au-dessus du trou (3) obliquement vers le bas, de manière à déboucher dans la cavité de répartition des charges (6) et est rempli d'un matériau à base de ciment.
4. Procédé selon la revendication 1, caractérisé en ce que le matériau à base de ciment est une suspension de ciment fortement liquide.
5. Procédé selon la revendication 1, caractérisé en ce que l'eau injectée pour le creusement est aspirée au moyen d'un flexible d'aspiration, ainsi que la terre en suspension hors de la cavité de répartition des charges (6) et du trou d'ancrage (7).
6. Procédé selon la revendication 1, caractérisé en ce que le mur de soutènement (1) est nettoyé avant le forage des trous (3) sur sa face visible, et rejointoyé, tandis que la masse de la maçonnerie est consolidée par injection.
EP88107141A 1987-05-14 1988-05-04 Méthode pour protéger des murs de soutènement Expired - Lifetime EP0290941B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88107141T ATE59073T1 (de) 1987-05-14 1988-05-04 Verfahren zur sicherung von stuetzmauern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873716100 DE3716100A1 (de) 1987-05-14 1987-05-14 Verfahren zur sicherung von stuetzmauern
DE3716100 1987-05-14

Publications (2)

Publication Number Publication Date
EP0290941A1 EP0290941A1 (fr) 1988-11-17
EP0290941B1 true EP0290941B1 (fr) 1990-12-12

Family

ID=6327520

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88107141A Expired - Lifetime EP0290941B1 (fr) 1987-05-14 1988-05-04 Méthode pour protéger des murs de soutènement

Country Status (5)

Country Link
EP (1) EP0290941B1 (fr)
AT (1) ATE59073T1 (fr)
DE (2) DE3716100A1 (fr)
ES (1) ES2023229B3 (fr)
GR (1) GR3001594T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001077445A1 (fr) 2000-04-11 2001-10-18 Stump Spezialtiefbau Gmbh Procede et dispositif pour produire des cavites a contre-depouille
EP1553230A2 (fr) 2004-01-10 2005-07-13 Kurt G. Ross Méthode pour remettre en état des murs de soutènement
DE10323141B4 (de) * 2003-05-22 2005-12-22 Ross, Kurt G., Dipl.-Ing. Verfahren zur statischen Sicherung von Stützmauern und Füllpackung hierfür
EP2141287A1 (fr) 2008-07-01 2010-01-06 Bau-Sanierungstechnik GmbH Procédée de construction d'un mur de soutènement

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19754997B4 (de) * 1997-12-11 2012-04-05 Gerd Geyer Verfahren zur Sanierung von Schwergewichtsmauern
DE19808020C2 (de) 1998-02-26 2000-09-21 Kurt G Ross Verfahren zur Sanierung von Stützmauern
KR100468035B1 (ko) * 2002-06-19 2005-01-27 주식회사 도담이앤씨 옹벽용 프리캐스트 콘크리트 블록 및 탑다운 공법을이용한 옹벽 시공방법
DE102006018692A1 (de) * 2006-04-21 2007-10-25 Ross, Kurt G., Dipl.-Ing. Verfahren zur Sicherung von Stützmauern
DE102008018382A1 (de) 2008-04-11 2009-10-15 Bau-Sanierungstechnik Gmbh Verfahren zur Sicherung von Stützmauern
FR2969673B1 (fr) 2010-12-23 2013-02-08 Terre Armee Int Procede de modification d'un ouvrage en sol renforce

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1801984C3 (de) * 1968-10-09 1974-01-17 Held & Francke Bauaktiengesellschaft, 8000 Muenchen Verfahren zur Herstellung einer Pfahlabstützung
US3665717A (en) * 1971-01-14 1972-05-30 Soil Sampling Service Inc Method and apparatus for installing elongated rods in unstable earth formations
GB2017790B (en) * 1978-03-31 1982-08-04 Transport Secretary Of State F Method of reinforcing earth structures
DE3408461A1 (de) * 1984-03-08 1985-09-19 Kurt G. Dipl.-Ing. 6100 Darmstadt Ross Verfahren zur sanierung von stuetzmauern
DE3535320A1 (de) * 1985-10-03 1987-04-09 Dyckerhoff & Widmann Ag Verfahren und vorrichtung zum setzen eines stab-, draht- oder rohrfoermigen einbauteils in eine bodenformation mit drueckendem wasser

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001077445A1 (fr) 2000-04-11 2001-10-18 Stump Spezialtiefbau Gmbh Procede et dispositif pour produire des cavites a contre-depouille
DE10323141B4 (de) * 2003-05-22 2005-12-22 Ross, Kurt G., Dipl.-Ing. Verfahren zur statischen Sicherung von Stützmauern und Füllpackung hierfür
EP1553230A2 (fr) 2004-01-10 2005-07-13 Kurt G. Ross Méthode pour remettre en état des murs de soutènement
DE102004001559B4 (de) * 2004-01-10 2014-07-03 Bau-Sanierungstechnik Gmbh Verfahren zum Abfangen von Stützmauern
EP2141287A1 (fr) 2008-07-01 2010-01-06 Bau-Sanierungstechnik GmbH Procédée de construction d'un mur de soutènement
DE102008030671A1 (de) 2008-07-01 2010-01-07 Bau-Sanierungstechnik Gmbh Verfahren zur Sicherung von Stützmauern

Also Published As

Publication number Publication date
GR3001594T3 (en) 1992-11-23
DE3861259D1 (de) 1991-01-24
EP0290941A1 (fr) 1988-11-17
ES2023229B3 (es) 1992-01-01
ATE59073T1 (de) 1990-12-15
DE3716100A1 (de) 1988-12-01

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