EP0440584A1 - Verschlagung für eine gegossene Schlitzwand aus bewehrtem Beton und Verfahren für die Verschalung einer solchen Wand - Google Patents

Verschlagung für eine gegossene Schlitzwand aus bewehrtem Beton und Verfahren für die Verschalung einer solchen Wand Download PDF

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Publication number
EP0440584A1
EP0440584A1 EP91810057A EP91810057A EP0440584A1 EP 0440584 A1 EP0440584 A1 EP 0440584A1 EP 91810057 A EP91810057 A EP 91810057A EP 91810057 A EP91810057 A EP 91810057A EP 0440584 A1 EP0440584 A1 EP 0440584A1
Authority
EP
European Patent Office
Prior art keywords
formwork
concrete
panels
section
box
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.)
Withdrawn
Application number
EP91810057A
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English (en)
French (fr)
Inventor
Jean-Pierre Bertholon
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.)
BSS INFRAG SA
Original Assignee
BSS INFRAG 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
Application filed by BSS INFRAG SA filed Critical BSS INFRAG SA
Publication of EP0440584A1 publication Critical patent/EP0440584A1/de
Withdrawn legal-status Critical Current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
    • E02D5/185—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
    • 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 present invention relates to a formwork for a reinforced concrete wall, molded in a trench, this wall being produced in contiguous blocks, coupled by means of a continuous metal frame, this formwork comprising two longitudinal elements with a flat inner surface for molding the faces. side of a block, and an end box disposed between these two elements, said box comprising lateral clearances for receiving end sections of the frame of a block, and stop members to prevent penetration concrete in these clearances.
  • It also relates to a method of formwork of a wall of reinforced concrete molded in a trench, this wall being produced in contiguous blocks coupled by means of a metal frame, in which it is mounted, at at least one end of a first section. trench, a formwork according to the invention.
  • the present invention proposes to solve in a simple and effective way the problem of the connection of the metallic reinforcements between the different blocks.
  • a first aspect of the invention relates to a formwork characterized in that said box comprises a first external formwork element and a second internal formwork element, and in that said lateral clearances are formed between said first formwork element and said second formwork element.
  • said second element consists of a closed hollow structure of substantially rectangular section, two sides of which are parallel to said longitudinal elements, and said first element consists of an open structure, having a U-shaped section, dimensioned so as to fit over said closed hollow structure and to provide said clearances between this closed hollow structure and said open structure.
  • the open structure has two side walls constituting the branches of the U, the spacing between these side walls being substantially equal to the spacing of the longitudinal elements of the formwork.
  • the side walls of the open structure can each be composed of two parallel panels and reinforcing elements arranged between these panels.
  • the closed hollow structure consists of two first panels constituting said sides parallel to said longitudinal elements of the formwork and at least two second panels perpendicular to said first panels.
  • This open structure also includes a bottom connecting the side walls and serving as a support for said first panels of the closed hollow structure.
  • this bottom comprises a first panel and a second panel parallel to the first and these two panels are separated by reinforcing elements.
  • Another aspect of the invention relates to a formwork process for a wall as defined above, characterized in that after pouring the concrete, and at least partial setting of this concrete, said first external formwork element is removed from said box by holding in place said inner element, in that a second trench section is dug extending said first section, in that said inner element is then removed, and in that concrete is poured into said second section.
  • said formwork is replaced in said second section before pouring the concrete into it and the same is done with the following sections.
  • the formwork presented comprises two longitudinal elements 10 and 11 having a flat interior surface intended to define the general shape of a block of a wall made up of several contiguous blocks.
  • These elements generally consist of two panels 8 and 9 and an interior structure composed of reinforcing elements.
  • These panels 8 and 9 can be metal panels or wooden panels, for example in marine grade plywood.
  • a box 15 comprising a first external element 15a and a second internal element 15b, determining between them lateral clearances 16 and 17 for accommodating the end sections 18 and 19 of the elements of metallic longitudinal reinforcement of a wall block.
  • the first element 15a of this box is constituted by an open structure having a U-shaped section, the two branches of which are constituted by two side walls 12, 13 connected together by a bottom 7.
  • These two walls 12, 13 as well as the bottom 7 each consist of two parallel panels respectively 12a, 12b, 13a, 13b and 7a, 7b as well as reinforcing elements 14 arranged between them.
  • the spacing between these two walls is substantially equal to the spacing of the two longitudinal elements 10, 11 of the formwork.
  • the second element 15b of this box is constituted by a closed structure dimensioned so that the element 15a can adapt to it while providing the lateral clearances 16, 17.
  • This closed structure has a substantially rectangular section and consists of four panels 32, 33, 34, 35 delimiting between them a cavity 21 in which are arranged transverse reinforcing plates 20, for example two in number.
  • the panels 32 and 34 constitute the sides parallel to the longitudinal elements 10, 11 of the formwork, the panels 33 and 35 being perpendicular to these panels 32 and 34.
  • the panel 35 of the element 15b carries in its middle two studs 22 and 23 spaced from each other to provide a slot 24 in which is introduced a seal 25 of which a portion 25a will be taken in the block to molding defined by said formwork elements 10 and 11 and of which the other part 25b, which will remain free, will be taken in the concrete of the next block.
  • These studs provide a frustoconical clearance at the end of the formwork and the seal occupies a central position in this clearance. This clearance allows a tenon-mortise type coupling between the adjacent blocks.
  • Fig. 2 shows the two plates 12b and 32 which constitute the walls of the clearance 16 of the box 15, and a member 30 intended to stop the concrete when the block is molded.
  • This member 30 is generally constituted by a strip of expanded metal which will subsequently remain incorporated in the block and the purpose of which is to prevent the concrete filling the interior of the clearance 16 so that the end sections 18 of the irons d frame remain free.
  • a member for stopping the concrete identical to the member 30, is disposed at the entrance of the clearance 17 of the box 15 to preserve the end sections 19 of the reinforcing bars placed near the other side of the block to be molded.
  • the stop grids 30 are placed in front of the clearances 16 and 17 formed between the two elements of the box 15, the metal reinforcement 43 is positioned so that the longitudinal bars have end sections 18 and 19 engaged in the recesses 16 and 17 (FIG. 3C) and the concrete is poured 44
  • the first external element 15a is removed from the box 15 while keeping the internal element 15b in place (FIG. 3D).
  • a second trench element extending the first section is then dug in a manner identical to the first, one of the jaws 42 of the shovel 41 bearing against the panel 33 of the inner element 15b of the box 15 (fig. 3E) .
  • This embodiment is particularly advantageous, efficient and rapid, since it allows, by relatively economical means, the production of a wall in contiguous blocks in which the continuity of the metal frame is preserved while ensuring the sealing between these blocks.
  • the present invention is not limited to the embodiment described but can be obviously modified by those skilled in the art.
  • the shape and dimensions of the box disposed at the end of the longitudinal shuttering elements and the shape as well as the dimensions of the studs intended to support the seal can be modified according to the thickness of the wall to be produced.
  • the bottom panel 33 of the element interior 15b can be omitted so as to allow better engagement of the jaws of the shovel.

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)
EP91810057A 1990-01-30 1991-01-28 Verschlagung für eine gegossene Schlitzwand aus bewehrtem Beton und Verfahren für die Verschalung einer solchen Wand Withdrawn EP0440584A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9001208A FR2657639A1 (fr) 1990-01-30 1990-01-30 Procede de coffrage d'une paroi en beton arme moulee dans une tranchee et coffrage pour la mise en óoeuvre de ce procede.
FR9001208 1990-01-30

Publications (1)

Publication Number Publication Date
EP0440584A1 true EP0440584A1 (de) 1991-08-07

Family

ID=9393326

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91810057A Withdrawn EP0440584A1 (de) 1990-01-30 1991-01-28 Verschlagung für eine gegossene Schlitzwand aus bewehrtem Beton und Verfahren für die Verschalung einer solchen Wand

Country Status (2)

Country Link
EP (1) EP0440584A1 (de)
FR (1) FR2657639A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0754806A1 (de) * 1995-07-19 1997-01-22 BICC Public Limited Company Schalung für Betonkonstruktionen
EP1983111A1 (de) * 2007-04-20 2008-10-22 BAUER Maschinen GmbH Schalungselement zum Begrenzen eines Schlitzwandabschnitts, Schalungsteil und Verfahren zum Herstellen einer Schlitzwand im Boden
EP2549021A1 (de) * 2011-07-18 2013-01-23 Bauer Spezialtiefbau GmbH Pumpspeicherkraftwerk und Verfahren zu seiner Herstellung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2071576A5 (de) * 1969-12-16 1971-09-17 Frankignoul Pieux Armes
US3693928A (en) * 1970-11-04 1972-09-26 Synions Corp Concrete wall form with adjustable bulkhead
FR2473085A1 (fr) * 1980-01-08 1981-07-10 Sif Entreprise Bachy Procede pour assurer la continuite des armatures entre des panneaux successifs d'une paroi en beton arme, et panier d'armatures pour la mise en oeuvre de ce procede

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61257529A (ja) * 1985-05-10 1986-11-15 Ohbayashigumi Ltd 地中連続壁工法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2071576A5 (de) * 1969-12-16 1971-09-17 Frankignoul Pieux Armes
US3693928A (en) * 1970-11-04 1972-09-26 Synions Corp Concrete wall form with adjustable bulkhead
FR2473085A1 (fr) * 1980-01-08 1981-07-10 Sif Entreprise Bachy Procede pour assurer la continuite des armatures entre des panneaux successifs d'une paroi en beton arme, et panier d'armatures pour la mise en oeuvre de ce procede

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 11, no. 114 (M-759)(2561) 10 Avril 1987 & JP-A-61 257 529 (OHBAYASHIGUMI ) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0754806A1 (de) * 1995-07-19 1997-01-22 BICC Public Limited Company Schalung für Betonkonstruktionen
EP1983111A1 (de) * 2007-04-20 2008-10-22 BAUER Maschinen GmbH Schalungselement zum Begrenzen eines Schlitzwandabschnitts, Schalungsteil und Verfahren zum Herstellen einer Schlitzwand im Boden
US8348555B2 (en) 2007-04-20 2013-01-08 Bauer Maschinen Gmbh Formwork element for bounding a trench wall section, formwork part and method for producing a trench wall in the ground
EP2549021A1 (de) * 2011-07-18 2013-01-23 Bauer Spezialtiefbau GmbH Pumpspeicherkraftwerk und Verfahren zu seiner Herstellung

Also Published As

Publication number Publication date
FR2657639A1 (fr) 1991-08-02

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