EP0462010A1 - yinrichtung zum Erleichtern des Herausziehens einer Schalung, und Verwendung zum Herstellen einer Bodenschlitzwand. - Google Patents

yinrichtung zum Erleichtern des Herausziehens einer Schalung, und Verwendung zum Herstellen einer Bodenschlitzwand. Download PDF

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Publication number
EP0462010A1
EP0462010A1 EP91401571A EP91401571A EP0462010A1 EP 0462010 A1 EP0462010 A1 EP 0462010A1 EP 91401571 A EP91401571 A EP 91401571A EP 91401571 A EP91401571 A EP 91401571A EP 0462010 A1 EP0462010 A1 EP 0462010A1
Authority
EP
European Patent Office
Prior art keywords
formwork
tool
groove
face
shuttering
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.)
Granted
Application number
EP91401571A
Other languages
English (en)
French (fr)
Other versions
EP0462010B1 (de
Inventor
Pierre Longchamp
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.)
Bouygues SA
Original Assignee
Bouygues SA
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
Priority claimed from FR9007502A external-priority patent/FR2663357B1/fr
Priority claimed from FR9103953A external-priority patent/FR2674888B1/fr
Application filed by Bouygues SA filed Critical Bouygues SA
Publication of EP0462010A1 publication Critical patent/EP0462010A1/de
Application granted granted Critical
Publication of EP0462010B1 publication Critical patent/EP0462010B1/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
    • 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
    • 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
    • E02D5/185—Bulkheads or similar walls made solely of concrete in situ with flexible joint members between sections
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof

Definitions

  • the invention relates to a device for facilitating the extraction of a vertical formwork used for the production of a concrete wall, said formwork constituting a box having a formwork face facing the molded wall, a back opposite to the formwork face and two lateral sides.
  • the production of a reinforced concrete wall in the ground by means of such formwork consists in digging a vertical excavation, inserting the formwork at the ends of the excavation, introducing the reinforcements of the wall into the excavation and pouring the concrete in the excavation, these operations being repeated in successive successive excavations until the desired wall is produced, for example a cylindrical wall.
  • the object of the present invention is in particular to facilitate this extraction.
  • a device which comprises means for detachably forming in the back of the formwork at least one vertical guide groove open over its entire length in a direction opposite to the shuttering face, and means constituting a formwork tool having a guide part capable of sliding vertically in said groove while being retained in the groove and side knives capable of scraping the lateral sides of the formwork during this sliding, and the device comprising means for controlling the sliding of said tool.
  • the box formwork consisting of a main body 1 forming a box and which has a vertical formwork face provided in the middle with a seal 2 in a manner known per se, a back 1b opposite the formwork face and two lateral sides 3,4 vertical and slightly inclined to facilitate subsequent formwork.
  • two plates 5,6 are detachably fixed on the back of the formwork, for example by bolting, to form between them the opening 7 'of a vertical groove 7.
  • the formwork tool consisting of a thick plate 8 provided with two side edges 9,10 in the form of plates capable of forming knives, the distance from the edges being chosen in correspondence the width of the formwork so that the knives can scrape the sides of the formwork vertically.
  • the tool has in its middle a T-shaped section 11 whose head is capable of sliding vertically in the groove 7 of the formwork while being retained in this groove.
  • the tool is suitable for being fixed to a control means capable of controlling the vertical movement of the tool, for example to the excavation bucket used to carry out the excavation.
  • this bucket has been shown diagrammatically at 12 and the formwork, the tool and the bucket are shown at a distance from each other, for the clarity of the figure, but it will be understood that in service, tool is attached to the bucket to which it is provisionally fixed by any suitable means (for example by keying in rings fixed to the bucket) and, at the desired time, is engaged so that its part 11 slides in the groove 7 while that the knives 9,10 scrape the sides 3,4 of the formwork.
  • any suitable means for example by keying in rings fixed to the bucket
  • Figures 2 and 3 illustrate the following operations: after carrying out a first excavation A, the formwork 1 is put in place (the height of which is preferably greater than the depth of the excavation) and the possible reinforcements of the wall to be constructed then pour the concrete into the excavation. If necessary, the excavation is temporarily consolidated with bentonite or equivalent, before pouring.
  • the next excavation B is carried out by lowering the excavation bucket 12 to which, if necessary, the formwork tool 8-11 has been fixed, the guide part 11 of which has been engaged by the high in the dorsal groove of the formwork.
  • the knives of the tool break the concrete of the excavation A which has possibly bypassed the formwork and which blocks the formwork while the guide 11 retained in the groove 7 holds the tool against the formwork. If the groove becomes obstructed by concrete, dismantling the plates 5,6 gives access to the groove for cleaning.
  • the groove can be temporarily filled with a protective element or material during concreting to avoid any introduction of the concrete into the groove.
  • the formwork can be facilitated by exerting traction towards the vacuum created by the drilling in progress.
  • the formwork is done starting from the foot and going up.
  • Traction can be exerted by a slight closing of the bucket for example.
  • a part or stud 13 similar to the guide stud 11 of the tool can be fixed to a shell of the bucket 12 and introduced into the central groove 7 of the formwork (FIG. 4).
  • the bucket is supported by the top of the hat on the formwork and acts as a lever.
  • the invention is not limited to a number or to a particular groove profile such as 8 and of a guide such as 11.
  • the invention is not limited to the particular device which has been described with reference to FIGS. 1 to 4.

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)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
EP91401571A 1990-06-15 1991-06-13 yinrichtung zum Erleichtern des Herausziehens einer Schalung, und Verwendung zum Herstellen einer Bodenschlitzwand. Expired - Lifetime EP0462010B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9007502A FR2663357B1 (fr) 1990-06-15 1990-06-15 Dispositif pour faciliter l'extraction d'un coffrage, outil present dans le dispositif et application a la realisation d'une paroi moulee dans le sol.
FR9007502 1990-06-15
FR9103953 1991-04-02
FR9103953A FR2674888B1 (fr) 1991-04-02 1991-04-02 Dispositif pour faciliter l'extraction d'un coffrage, outil present dans le dispositif et application a la realisation d'une paroi moulee dans le sol.

Publications (2)

Publication Number Publication Date
EP0462010A1 true EP0462010A1 (de) 1991-12-18
EP0462010B1 EP0462010B1 (de) 1995-03-01

Family

ID=26228083

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91401571A Expired - Lifetime EP0462010B1 (de) 1990-06-15 1991-06-13 yinrichtung zum Erleichtern des Herausziehens einer Schalung, und Verwendung zum Herstellen einer Bodenschlitzwand.

Country Status (5)

Country Link
EP (1) EP0462010B1 (de)
AT (1) ATE119228T1 (de)
DE (1) DE69107696T2 (de)
ES (1) ES2070454T3 (de)
HK (1) HK101596A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998004782A1 (en) * 1996-07-31 1998-02-05 Gammon Finance Ltd. - Kvaerner Construction International Ltd. Improved stop-end system for use in diaphragm wall construction
FR2791072A1 (fr) * 1999-03-19 2000-09-22 Sol Comp Du Dispositif d'aide au decoffrage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL113163C (de) * 1900-01-01
US3513572A (en) * 1967-09-01 1970-05-26 Stang Cofor Inc Excavating apparatus for digging trenches
EP0048444A2 (de) * 1980-09-19 1982-03-31 Robert Pföderl Verfahren und Schalungselement zum Herstellen von Schlitzwänden
EP0101350A1 (de) * 1982-08-11 1984-02-22 Sondages Injections Forages "S.I.F." Entreprise Bachy Verfahren und Vorrichtung zum Ausziehen der Schalung bei der Herstellung einer unterirdischen Schlitzwand
CH665241A5 (en) * 1987-01-28 1988-04-29 Zschokke Sa Conrad Wall-casting system in ground - uses end shuttering walls in sections aligned and clamped together beforehand

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL113163C (de) * 1900-01-01
US3513572A (en) * 1967-09-01 1970-05-26 Stang Cofor Inc Excavating apparatus for digging trenches
EP0048444A2 (de) * 1980-09-19 1982-03-31 Robert Pföderl Verfahren und Schalungselement zum Herstellen von Schlitzwänden
EP0101350A1 (de) * 1982-08-11 1984-02-22 Sondages Injections Forages "S.I.F." Entreprise Bachy Verfahren und Vorrichtung zum Ausziehen der Schalung bei der Herstellung einer unterirdischen Schlitzwand
CH665241A5 (en) * 1987-01-28 1988-04-29 Zschokke Sa Conrad Wall-casting system in ground - uses end shuttering walls in sections aligned and clamped together beforehand

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998004782A1 (en) * 1996-07-31 1998-02-05 Gammon Finance Ltd. - Kvaerner Construction International Ltd. Improved stop-end system for use in diaphragm wall construction
FR2791072A1 (fr) * 1999-03-19 2000-09-22 Sol Comp Du Dispositif d'aide au decoffrage
EP1039038A1 (de) * 1999-03-19 2000-09-27 Compagnie Du Sol Ausschalungshilfsvorrichtung
US6332297B1 (en) 1999-03-19 2001-12-25 Compagnie Du Sol Device for facilitating the removal of formwork

Also Published As

Publication number Publication date
ES2070454T3 (es) 1995-06-01
HK101596A (en) 1996-06-21
DE69107696T2 (de) 1995-06-29
ATE119228T1 (de) 1995-03-15
DE69107696D1 (de) 1995-04-06
EP0462010B1 (de) 1995-03-01

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