EP1407085B1 - Verfahren und vorrichtung zur herstellung einer stahlbetonwand im boden - Google Patents

Verfahren und vorrichtung zur herstellung einer stahlbetonwand im boden Download PDF

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Publication number
EP1407085B1
EP1407085B1 EP02784868A EP02784868A EP1407085B1 EP 1407085 B1 EP1407085 B1 EP 1407085B1 EP 02784868 A EP02784868 A EP 02784868A EP 02784868 A EP02784868 A EP 02784868A EP 1407085 B1 EP1407085 B1 EP 1407085B1
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EP
European Patent Office
Prior art keywords
tube
excavation
cage
formwork
concrete
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
EP02784868A
Other languages
English (en)
French (fr)
Other versions
EP1407085B8 (de
EP1407085A1 (de
Inventor
Christian Carail
Roland Stenne
Jean-Louis Pegon
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.)
Europe Fondations
Original Assignee
INTRAFOR
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Publication date
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Application granted granted Critical
Publication of EP1407085B1 publication Critical patent/EP1407085B1/de
Publication of EP1407085B8 publication Critical patent/EP1407085B8/de
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
    • E02D5/18—Bulkheads or similar walls made solely of concrete in situ
    • E02D5/182—Bulkheads or similar walls made solely of concrete in situ using formworks to separate sections

Definitions

  • the invention relates to a method and a device for producing a reinforced concrete molded wall in the ground.
  • the invention relates more precisely to a method in which a vertical excavation is excavated by means of an excavation tool, and a reinforcing cage capable of arming the concrete of the excavation and a formwork is secured and lowered simultaneously in the excavation. capable of constituting at one end of the excavation a seal between this excavation and the next contiguous excavation, liquid concrete is poured into the excavation and the concrete is allowed to harden, the formwork is eliminated, and these operations are repeated in a joint excavation and so search excavation.
  • the publication FR 2,148,706 which relates to such a method, recommends the use of a complex formwork, preferably combined with an auxiliary device and that must be extracted after concreting.
  • the present invention aims to combine the advantages of a technique where the formwork and the reinforcement cage are joined together and a technique where the formwork is a simple non-deformable tube but destructible in-situ, without presenting the disadvantages of these two techniques.
  • the tube undergoes the Archimedes thrust of the medium (generally a drilling mud like bentonite) with which the excavation was filled to temporarily maintain the surrounding terrain and this thrust, because the tube is not deformable, can cause deformation of the cage which is integral with the tube but which does not undergo the thrust of Archimedes.
  • the medium generally a drilling mud like bentonite
  • the tube in place in the excavation is exposed to the concrete pressure and must be able to withstand this pressure.
  • the present invention provides a solution to these two problems by the use of an open bottom tube which is therefore insensitive to buoyancy and the subsequent filling of this tube with a filling material for it. to resist the concrete pressure.
  • the method of the invention is therefore characterized in that as formwork a non-closed bottom tube destructible shock, in that fills the tube in place in the excavation with filling materials to close the bottom of the tube and allow it to withstand the pressure of concreting, and in that the excavation tool is used, during the next contiguous excavation, to destroy by shock the tube.
  • the tube will generally be circular in section but the invention is not limited to such a section, provided that the tube is hollow and not closed.
  • the tube is filled with an inexpensive material and which is moreover recoverable during the destruction of the tube.
  • this filling material consists of sandbags (or other filling material) lowered to the bottom of the tube to close the bottom, followed by loose gravel.
  • a device for carrying out the method of the invention comprises an excavation tool for digging the excavation, a reinforcing cage, at least one formwork, means for securing the cage and the tube, and means for setting place in the search the tube and cage secured, characterized in that the form is a non-deformable open tube but destructible by shock and in that the device comprises means for filling the tube after installation to enable it to withstand the pressure concreting.
  • the tube (1) shown on the figure 1 is a hardened synthetic resin tube, grooved externally.
  • the tube (1) has the outside diameter the nominal thickness of the wall to be molded.
  • Guide wheels (2) ( fig.1 ) positioned along two generatrices of the tube are attached to the reinforcement cage (3) by means of rollers (4) to enable said tube to be positioned relative to the cage so as to respect the subsequent nominal coating of the reinforcements by the liquid concrete and in particular frames horizontal (5) of this cage.
  • Said tube is fixed rigidly to the reinforcement cage by means of ligatures (6) placed at regular intervals and embracing it. These ligatures are attached by covering and fixing to the frames (5) of the reinforcement cage (3).
  • the operation of placing the tube on the reinforcement cage takes place once the cage is built and before it is put in place in the excavation.
  • the foot of the tube is wedged so that it is positioned in the excavation not far from the bottom of the excavation.
  • the foot of the reinforcement cage is located at least a minimum distance (1.00 m) from the bottom of the panel.
  • another tube, inside the tube fixed on said reinforcing cage is telescoped until it reaches the bottom of the excavation.
  • the tube with the reinforcement cage is introduced into the excavation ( fig.5 ) filled with bentonite (or similar product to maintain the surrounding terrain), for example by means of a schematic G crane ( fig.4 ) at which the cage and the tube are suspended by slings.
  • a plug (7) on a height of about 2.00 meters is constituted in the tube by means of sand bags introduced into the tube from the top of the tube in order to give the tube a seal vis-à-vis the concrete coming.
  • the tube can then be filled gravel (8) to give it resistance to the pressure of the concrete (9).
  • the materials placed in the tube, namely the sandbags and the gravel, are removed during the excavation operation of the adjacent excavation by the excavation tool.
  • a tube consisting of superimposed sections T 1 , T 2 , ... connected in pairs by internal sleeves M ( fig.3 ); likewise, the cage (3) can itself consist of superimposed cages (3,3 '%) which partially overlap ( fig.3 ).

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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)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Sewage (AREA)

Claims (16)

  1. Verfahren zur Herstellung einer in Form gegossenen Stahlbetonwand im Boden, wobei mit Hilfe eines Aushubwerkzeugs eine Baugrube ausgehoben wird, ein Bewehrungskorb zum Bewehren des Betons der Baugrube und eine Schalung zum Ausbilden einer Dichtungsfuge an einem Ende der Baugrube zwischen dieser Baugrube und der nächsten angrenzenden Baugrube verbunden und gleichzeitig in die Baugrube abgesenkt werden, Flüssigbeton in die Baugrube gegossen und der Beton ausgehärtet wird, die Schalung entfernt wird und diese Schritte in einer angrenzenden Baugrube und weiter Baugrube für Baugrube wiederholt werden,
    dadurch gekennzeichnet, daß
    als Schalung ein nicht verformbares, aber durch Stöße zerstörbares Rohr mit offenem Boden verwendet wird,
    das Rohr vor Ort in der Baugrube gefüllt wird, um das Rohr zuzuschütten, so daß es dem Druck beim Betonieren widerstehen kann, und
    das Aushubwerkzeug bei der nächsten folgenden Baugrube verwendet wird, um durch Stöße das Rohr zu zerstören.
  2. Verfahren nach Anspruch 1, wobei das Werkzeug zum Ausheben der nächsten Baugrube außerdem zum Herausholen der Rohrstücke sowie der Füllung des Rohrs verwendet wird.
  3. Verfahren nach einem der Ansprüche 1 und 2, wobei Säcke, die Sand (oder ein anderes Füllmaterial) enthalten, verwendet werden, um den Boden des Rohrs zuzuschütten.
  4. Verfahren nach Anspruch 3, wobei als Füllmaterial oberhalb der Säcke Kies in loser Schüttung verwendet wird.
  5. Verfahren nach einem der Ansprüche 1 bis 4, wobei mit Hilfe von zerstörbaren Bügeln das Rohr starr an dem Korb befestigt wird.
  6. Verfahren nach einem der Ansprüche 1 bis 5, wobei der Bewehrungskorb mit Rollen ausstattet ist, um das Anordnen des Rohrs bezüglich des Korbs zu erleichtern.
  7. Verfahren nach einem der Ansprüche 1 bis 6, wobei ein Rohr verwendet wird, das aus übereinander angeordneten Rohrabschnitten besteht, die über eine Innenmuffe paarweise miteinander verbunden sind.
  8. Verfahren nach einem der Ansprüche 1 bis 7, wobei ein Rohr aus gehärtetem Kunstharz verwendet wird.
  9. Vorrichtung zur Durchführung eines Verfahrens nach einem der Ansprüche 1 bis 8, die aufweist: ein Aushubwerkzeug zum Ausheben der Baugrube, einen Bewehrungskorb (3) zum Bewehren des Betons der Baugrube, mindestens eine Schalung (1) zum Ausbilden einer Dichtungsfuge an einem Ende der Baugrube, Einrichtungen zum Verbinden der Schalung und des Korbs und Einrichtungen (G) zum Anordnen der Schalung und des Korbs, die miteinander verbunden sind, in der Baugrube,
    dadurch gekennzeichnet, daß
    die Schalung (1) ein durch Stöße zerstörbares Rohr mit offenem Boden ist und daß die Vorrichtung Einrichtungen (6) aufweist, um das Rohr, nachdem es in der Baugrube angeordnet worden ist, zu füllen.
  10. Vorrichtung nach Anspruch 9, wobei das Rohr (1) über zerstörbare Bügel starr an dem Korb (3) befestigt ist.
  11. Vorrichtung nach Anspruch 9 oder 10, wobei der Bewehrungskorb (3) Rollen (2) aufweist, um das Anordnen des Rohrs (1) bezüglich des Korbs zu erleichtern.
  12. Vorrichtung nach einem der Ansprüche 9 bis 11, wobei das Rohr aus übereinander angeordneten Rohrabschnitten (T1, T2, ...) besteht, die über Innenmuffen (M) paarweise miteinander verbunden sind.
  13. Vorrichtung nach einem der Ansprüche 9 bis 12, wobei das Rohr (1) aus gehärtetem Kunstharz ist.
  14. Vorrichtung nach einem der Ansprüche 9 bis 13, wobei das Rohr (1) außen mit Riefen versehen ist.
  15. Vorrichtung nach einem der Ansprüche 9 bis 14, wobei die Einrichtungen zum Füllen des Rohrs Säcke mit Sand (oder einem anderen Füllmaterial) und Kies in loser Schüttung aufweisen.
  16. In eine Baugrube absenkbare Einheit aus einem Bewehrungskorb (3) und einem Schalungsrohr (1), die über zerstörbare Bügel miteinander verbunden sind, zum Durchführen eines Verfahrens nach einem der Ansprüche 1 bis 8.
EP02784868A 2001-07-13 2002-07-12 Verfahren und vorrichtung zur herstellung einer stahlbetonwand im boden Expired - Lifetime EP1407085B8 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0109348 2001-07-13
FR0109348A FR2827319B1 (fr) 2001-07-13 2001-07-13 Procede et dispositif pour la realisation d'une paroi moulee en beton arme dans le sol
PCT/FR2002/002474 WO2003006750A1 (fr) 2001-07-13 2002-07-12 Procede et dispositif pour la realisation d'une paroi en beton arme dans le sol

Publications (3)

Publication Number Publication Date
EP1407085A1 EP1407085A1 (de) 2004-04-14
EP1407085B1 true EP1407085B1 (de) 2009-03-11
EP1407085B8 EP1407085B8 (de) 2009-04-29

Family

ID=8865467

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02784868A Expired - Lifetime EP1407085B8 (de) 2001-07-13 2002-07-12 Verfahren und vorrichtung zur herstellung einer stahlbetonwand im boden

Country Status (7)

Country Link
EP (1) EP1407085B8 (de)
DE (1) DE60231505D1 (de)
ES (1) ES2322137T3 (de)
FR (1) FR2827319B1 (de)
HK (1) HK1051466A2 (de)
PT (1) PT1407085E (de)
WO (1) WO2003006750A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2553175B1 (de) * 2010-03-30 2013-11-06 VSL International AG Verfahren zur herstellung einer schlitzwand

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1501545A (fr) * 1966-02-12 1967-11-10 Nitto Kogyo Kk Procédé pour la construction des murs de fondation et similaires en béton armé, et murs réalisés selon ce procédé
BE785915A (fr) * 1971-07-09 1973-01-08 Sif Entreprise Bachy Perfectionnement a l'execution des joints entre les panneaux successifsd'une paroi moulee dans le sol
FR2148706A5 (de) * 1971-07-30 1973-03-23 Sif Entreprise Bachy
JPS573914A (en) * 1980-06-09 1982-01-09 Nippon Hodo Co Ltd Asphalt mastic continuous wall coupling structure and its construction
JP2981632B2 (ja) * 1992-11-10 1999-11-22 東急建設株式会社 地下壁の継手部の施工方法

Also Published As

Publication number Publication date
PT1407085E (pt) 2009-06-15
WO2003006750A1 (fr) 2003-01-23
DE60231505D1 (de) 2009-04-23
FR2827319A1 (fr) 2003-01-17
EP1407085B8 (de) 2009-04-29
EP1407085A1 (de) 2004-04-14
ES2322137T3 (es) 2009-06-17
HK1051466A2 (en) 2003-07-11
FR2827319B1 (fr) 2003-11-07

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