EP0157188B1 - Méthode pour l'assainissement de murs de soutènement - Google Patents

Méthode pour l'assainissement de murs de soutènement Download PDF

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Publication number
EP0157188B1
EP0157188B1 EP85102385A EP85102385A EP0157188B1 EP 0157188 B1 EP0157188 B1 EP 0157188B1 EP 85102385 A EP85102385 A EP 85102385A EP 85102385 A EP85102385 A EP 85102385A EP 0157188 B1 EP0157188 B1 EP 0157188B1
Authority
EP
European Patent Office
Prior art keywords
fact
retaining wall
flushing
wall
drilling
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
Application number
EP85102385A
Other languages
German (de)
English (en)
Other versions
EP0157188A1 (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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT85102385T priority Critical patent/ATE27839T1/de
Publication of EP0157188A1 publication Critical patent/EP0157188A1/fr
Application granted granted Critical
Publication of EP0157188B1 publication Critical patent/EP0157188B1/fr
Expired 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
    • E02D37/00—Repair of damaged foundations or foundation structures
    • 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
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0203—Arrangements for filling cracks or cavities in building constructions
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0203—Arrangements for filling cracks or cavities in building constructions
    • E04G23/0211—Arrangements for filling cracks or cavities in building constructions using injection

Definitions

  • the invention relates to a method for the rehabilitation of retaining walls with underlying soil by pressing in a mortar mass.
  • the object of the invention is therefore to provide a method of the type mentioned, which makes it possible to renovate retaining walls which have an inadequate cross-section as a heavy weight wall so that a statically verifiable, sufficient one without removing the masonry and without excavation work on the back of the wall Stability is achieved as a heavyweight wall.
  • the soil behind the retaining wall is only rinsed out in the lower area of the retaining wall, and the back of the wall is also cleaned intensively.
  • the soil remains completely behind the wall crown.
  • the cavity formed in this way is filled with mortar, which partially penetrates from the rear into the wall joints of the retaining wall and thereby creates an intimate connection with the retaining wall.
  • a coherent masonry body is obtained, the cross-section of which is expanded in the lower area towards the rear so that a real heavy-weight wall is created, which can withstand static verification even if the foundation is missing.
  • the method is expediently carried out in sections in order to prevent cavities which are too large from the rear of the wall before they are filled.
  • At least one vent hole is drilled through the retaining wall at a distance above the flushing hole.
  • the vent hole not only makes it easier to fill the cavity, but also lets out when the mortar material escapes when the cavity is completely filled.
  • An endoscope can be inserted through the irrigation hole in order to control the size and nature of the flushed cavity before the mortar mass is introduced.
  • All holes 5, 6 and 7 extend to the back of the wall and are made, for example, with a diameter of 55 mm.
  • the number, position and distance of the holes 5, 6 and 7 depend on the respective local requirements.
  • the masonry joints in old natural stone retaining walls are permeable in most cases, the masonry can be sealed with a visible stone before the start of the work using mechanical trass-lime mortar grouting.
  • the z. B. carries a rotatable flushing nozzle 9 (Fig. 3).
  • the lance 8 can have a rotatable nozzle body with a plurality of nozzle openings.
  • one or more rinsing nozzles (targeted interchangeable rinsing nozzles) fixed to the lance 8 can also be provided.
  • the lance 8 supplies water at a high pressure of up to 900 bar, which emerges from the nozzle openings.
  • the high-pressure water jets flush the soil 2 in the area around the flushing nozzle 9, so that a cavity 12 is created.
  • the water and the rinsed-off soil reach the front of the retaining wall 1 through the drain holes 5.
  • the high-pressure water jets also bring about intensive cleaning of the rear of the retaining wall 1 in the region of the cavity 12.
  • an endoscope (not shown) with an illumination device can be inserted into the cavity 12 instead of the lance 8 in order to control the position and size of the cavity 12.
  • an injection lance 13 is inserted into the flushing hole 6 and the cavity 12 is filled by pressing in a flowable trass cement mortar mass 14. until the mortar compound exits through the ventilation holes 7.
  • the pressure applied thereby causes the mortar mass 14, which does not yet completely fill the cavity 12 in the illustration according to FIG. 4, also partially penetrates into the retaining wall 1 from the rear, as indicated in FIG. 5.
  • Anchor steel rods 16 (FIG. 5) can be driven into the still fresh grouting material through the flushing holes 6 in order to achieve an even better anchoring between the retaining wall 1 and the mortar mass 14.
  • the mortar mass 14 can be admixed with either steel fibers or plastic fibers to improve the compressive and tensile strength and to improve the elastic behavior.
  • the mortar mass 14 forms together with the original retaining wall 1 a heavyweight retaining wall, the cross section of which is such that the stability can also be demonstrated statically.
  • Horizontal control core bores 15 can then be made to determine the wall cross section obtained.
  • the method described creates the possibility of producing the principle of the heavyweight wall with too small a wall cross-section on old natural stone retaining walls with relatively little effort and low costs and to enable reliable structural verification of the stability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Paleontology (AREA)
  • Electrochemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Retaining Walls (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)

Claims (12)

1. Procédé de réfection de murs de soutènement et du terrain se trouvant derrière eux par injection d'une pâte de mortier, caractérisé par les étapes de procédé suivantes :
a) on fore au pied du mur de soutènement (1) au moins un trou d'écoulement (5) et, à distance au-dessus de celui-ci, au moins un trou de curage (6) à travers le mur de soutènement,
b) on introduit par le trou de curage (6) au moins une tuyère de curage (9) jusqu'à la zone se trouvant derrière le mur de soutènement,
c) on évide, dans la zone de terrain (2) derrière le mur, une cavité au moyen de jets d'eau sous haute pression via la tuyère de curage (9),
d) on nettoie la face postérieure du mur au moyen de jets d'eau sous haute pression,
e) on remplit la cavité (12) par injection de la pâte de mortier (14).
2. Procédé suivant la revendication 1 caractérisé en ce que les étapes de procédé a) à e) sont répétées dans d'autres sections du mur de soutènement (1).
3. Procédé suivant la revendication 1 caractérisé en ce qu'on fore au moins un trou de désaération (7) à travers le mur de soutènement à une certaine distance au-dessus du trou de curage (6).
4. Procédé suivant la revendication 1 caractérisé en ce que, avant d'effectuer l'étape de procédé (a), on réalise plusieurs forages à coeur (3) horizontaux pour déterminer l'épaisseur du mur.
5. Procédé suivant la revendication 1 caractérisé en ce que, après l'étape du procédé b), on introduit un endoscope par le trou de curage (6) pour contrôler la cavité (12) formée.
6. Procédé suivant la revendication 1 caractérisé en ce que, après l'étape du procédé a) et la prise de la pâte de mortier (14), on fore des trous de contrôle (15) à travers le mur de soutènement (1) et la composition de mortier (14).
7. Procédé suivant la revendication 1 caractérisé en ce que l'injection de la pâte de mortier (14) s'effectue par le trou de curage (6) et en ce que les trous d'écoulement (5) sont préalablement obturés.
8. Procédé suivant la revendication 1 caractérisé en ce que, avant d'effectuer les étapes de procédé a) à c), on rejointoie les joints du mur sur la face antérieure du mur de soutènement (1) au moyen d'un mortier au trass et à la chaux.
9. Procédé suivant la revendication 1 caractérisé en ce que l'on utilise un mortier fluide au trass et à la chaux pour effectuer l'étape de procédé e).
10. Procédé suivant la revendication 1 caractérisé en ce que l'on utilise une tuyère de curage (9) qui tourne librement à la pointe de la lance.
11. Procédé suivant la revendication 1 caractérisé en ce que, après l'étape de procédé e), on introduit par les trous de curage (6) des barres d'ancrage en acier (16) dans la pâte de mortier (14).
12. Procédé suivant la revendication 1 caractérisé en ce qu'on mélange des fibres d'aciers ou des fibres de matière plastique à la pâte de mortier (14) avant d'injecter celle-ci.
EP85102385A 1984-03-08 1985-03-04 Méthode pour l'assainissement de murs de soutènement Expired EP0157188B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85102385T ATE27839T1 (de) 1984-03-08 1985-03-04 Verfahren zur sanierung von stuetzmauern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843408461 DE3408461A1 (de) 1984-03-08 1984-03-08 Verfahren zur sanierung von stuetzmauern
DE3408461 1984-03-08

Publications (2)

Publication Number Publication Date
EP0157188A1 EP0157188A1 (fr) 1985-10-09
EP0157188B1 true EP0157188B1 (fr) 1987-06-16

Family

ID=6229883

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85102385A Expired EP0157188B1 (fr) 1984-03-08 1985-03-04 Méthode pour l'assainissement de murs de soutènement

Country Status (3)

Country Link
EP (1) EP0157188B1 (fr)
AT (1) ATE27839T1 (fr)
DE (2) DE3408461A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10323141B4 (de) * 2003-05-22 2005-12-22 Ross, Kurt G., Dipl.-Ing. Verfahren zur statischen Sicherung von Stützmauern und Füllpackung hierfür

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT387415B (de) * 1986-03-03 1989-01-25 Perlmooser Zementwerke Ag Verfahren zur wiederherstellung von schadhaften begehbaren, schliefbaren und nichtschliefbaren kanaelen, insbesondere profilkanaelen
DE3716100A1 (de) * 1987-05-14 1988-12-01 Ross Kurt G Verfahren zur sicherung von stuetzmauern
DE19728519B4 (de) * 1997-07-04 2007-10-18 Gerold Koch Verfahren und Anordnung zum Aufbereiten und Sanieren einer altertümlichen Mauer
DE19754997B4 (de) * 1997-12-11 2012-04-05 Gerd Geyer Verfahren zur Sanierung von Schwergewichtsmauern
US6149352A (en) 1999-02-11 2000-11-21 Keystone Retaining Wall Systems, Inc. Retaining wall block system
DE102004001559B4 (de) 2004-01-10 2014-07-03 Bau-Sanierungstechnik Gmbh Verfahren zum Abfangen von Stützmauern
KR100506981B1 (ko) * 2005-02-16 2005-08-05 (주)아이엔 옹벽 배면에 위치하는 토사지반에 형성된 공동부 보강공법
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
DE102008030671A1 (de) * 2008-07-01 2010-01-07 Bau-Sanierungstechnik Gmbh Verfahren zur Sicherung von Stützmauern

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2187324A (en) * 1937-09-15 1940-01-16 Benjamin J Many Method of and means for repairing masonry structures
DE1634431A1 (de) * 1967-07-25 1970-06-25 Kunz Alfred & Co Verfahren zum Wiederherstellen der Tragfaehigkeit baufaellig gewordener Gruendungskoerper
NL7904070A (nl) * 1979-05-23 1980-11-25 Henricus Fredericus Josephus M Werkwijze voor het dichten van een gat in een keerwand, meer in het bijzonder damwand, alsmede keerwand, be- handeld onder toepassing van deze werkwijze.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10323141B4 (de) * 2003-05-22 2005-12-22 Ross, Kurt G., Dipl.-Ing. Verfahren zur statischen Sicherung von Stützmauern und Füllpackung hierfür

Also Published As

Publication number Publication date
DE3408461A1 (de) 1985-09-19
EP0157188A1 (fr) 1985-10-09
ATE27839T1 (de) 1987-07-15
DE3560264D1 (en) 1987-07-23

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