EP0952258B1 - Panneau de coffrage d'une paroi moulée dans le sol et procédé pour son extraction - Google Patents

Panneau de coffrage d'une paroi moulée dans le sol et procédé pour son extraction Download PDF

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Publication number
EP0952258B1
EP0952258B1 EP99106413A EP99106413A EP0952258B1 EP 0952258 B1 EP0952258 B1 EP 0952258B1 EP 99106413 A EP99106413 A EP 99106413A EP 99106413 A EP99106413 A EP 99106413A EP 0952258 B1 EP0952258 B1 EP 0952258B1
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EP
European Patent Office
Prior art keywords
formwork
concrete
expanding
flat joint
formwork element
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
EP99106413A
Other languages
German (de)
English (en)
Other versions
EP0952258A2 (fr
EP0952258A3 (fr
Inventor
Johann Strobel
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.)
STAHL- und APPARATEBAU HANS LEFFER GmbH
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STAHL- und APPARATEBAU HANS LEFFER GmbH
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Publication date
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Application filed by STAHL- und APPARATEBAU HANS LEFFER GmbH filed Critical STAHL- und APPARATEBAU HANS LEFFER GmbH
Publication of EP0952258A2 publication Critical patent/EP0952258A2/fr
Publication of EP0952258A3 publication Critical patent/EP0952258A3/fr
Application granted granted Critical
Publication of EP0952258B1 publication Critical patent/EP0952258B1/fr
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    • 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 formwork element of a flat joint formwork with means for detaching or detaching adherent Concrete masses and circulating concrete in sections Production of a diaphragm wall.
  • Diaphragm walls are an important component in basic construction and serve, for example, as construction pit enclosures, retaining walls for jumps in the terrain or as sealing walls for dams and landfills. It is characteristic of the design of diaphragm walls that an open bottom slot is constantly stabilized by refilled support. As is known, diaphragm walls are produced step by step in individual construction sections, each section forming a concreting unit. The diaphragm wall sections are usually separated from one another by storage structures. In the past, steel shuttering pipes were used as support structures, which were recovered after the concrete had stiffened, which means that the pipes could not be pulled until the concrete had set. Extremely heavy pullers had to be used to pull.
  • a formwork of an end joint is a Section of a diaphragm wall described.
  • the formwork for the end connection point of mold wall sections, which comprises a plate and a box mounted thereon, in cross section a longitudinal joint for inserting the connection point has and constructed from at least two parts and for successive connection in Is equipped with connecting elements in the longitudinal direction characterized in that the box faces each part reset a corresponding end of the plate and that the connecting elements from a connector are formed, which is essentially the same cross section has like the box and with the plates in question each of the parts is connectable by going into the break area the boxes are inserted in such a way that the Overlaps end areas of the plates.
  • EP 0 402 247 B1 describes a method and a device to remove a seal adhering to the concrete wall section cast in the floor. The procedure is characterized in that facing away from the concrete Side of the seal a joint using a tool is carried out at a location above the joint Place is connected to the seal.
  • a formwork element Flat joint formwork with means for pressing the formwork element of the hardening concrete in section-by-section production described a diaphragm wall in which the base body of the formwork element arranged on the concrete side elongated recesses is provided, in which hydraulic or pneumatically actuated pistons are arranged, the Seal the recesses on surfaces facing the concrete.
  • the invention has for its object a new formwork element a flat joint formwork with means for detachment or blasting off adhering concrete masses and in particular of circulating concrete in the section-by-section production specify a diaphragm wall, as well as a rational Process for its expansion, which are known to each other Means and processes through special efficiency and uncomplicated Handling when detaching or blasting more adherent Mark concrete masses and thereby the construction progress promote and that when sealing diaphragm wall sections overcome the resulting difficulties better and facilitate the progress of the work.
  • the release agent or blasting agent are designed in the form of a spreading device, and that the formwork element has a base body arranged on the concrete side and surface parts forming vertical guide elements has, between which one on average one horizontal plane U-shaped, with the back shaped and non-positively against the concrete mass, for receiving the spreader with a vertical passage trained Pressure body in the horizontal direction between the Surface parts of the guide elements, with these in a form-fitting manner, is displaceably arranged.
  • Figure 1 shows a formwork element of a flat joint formwork 8 with means for detaching or blasting off adhering Concrete masses 10 and (not shown) from circulating concrete the section-wise production of a diaphragm wall.
  • the Formwork element has a base body 1 with a concrete side arranged and vertical guide elements 2 forming Surface parts 3, between which one on average one horizontal plane x-x U-shaped, with the back formund non-positively against the concrete mass 10, for Inclusion of a spreading device 4 with a vertical Passage 5 formed pressure body 6 in a horizontal Direction between the surface parts 3 of the guide elements 2 and is arranged such that it can be displaced in the positive connection.
  • the formwork element is together with one from above loosely usable expansion body 4 as an integrating functional unit the flat joint formwork 8 is formed. Further One embodiment provides that the spreading device 4 on the one hand with a horizontal axis in a friction-locked system on the base body 1 of the flat joint formwork 8, and on the other hand on the inner wall of the pressure body 6 for blasting of the formwork element or base body 1 of adhesive Concrete mass 10 is formed.
  • FIG 3 shows an advantageous embodiment of the invention, several spreaders 4 preferably in cooperation with a lifting device 12 to one another Unit 9 connected in the form of a push-off carriage are.
  • the spreading device 4 can be a hydraulic one or pneumatic piston / cylinder unit. It but should not be ruled out with the invention, that the spreader 4 also with an electromechanical Spindle drive can be formed.
  • the formwork element of a flat joint formwork 8 is particularly suitable for Use in the construction of a diaphragm wall and for sections Progress by incorporating one according to claims 1 up to 6 trained, which can be assembled from formwork elements Flat joint formwork 8 and thus solves in an optimal manner the task at the beginning.

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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)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Claims (7)

  1. Élément de coffrage d'un coffrage à joints plats (8) comprenant des organes pour le décoller de masses de béton (10) auxquelles il adhère ainsi que de contournements de béton respectivement pour faire sauter ce béton dans le cadre de la réalisation d'une paroi moulée par panneaux successifs, caractérisé en ce que les organes permettant de décoller respectivement de faire sauter le béton sont réalisés sous la forme d'un mandrin expansible (4) et en ce que l'élément de coffrage comprend un élément de base (1) présentant des pièces (3) dont les surfaces sont situées côté béton, d'une part, et forment des éléments de guidage (2) verticaux, d'autre part, un corps pousseur (6) en forme de U, vu en coupe selon un plan horizontal (x-x), lequel présente un passage vertical (5) pour accueillir le mandrin expansible (4) et dont la partie dorsale se trouve contre la masse de béton (10) à laquelle elle est retenue par fermeture géométrique et par adhérence, étant positionné de manière à pouvoir se déplacer horizontalement entre les surfaces desdites pièces (3) qui délimitent les éléments de guidage (2), avec lesquels il réalise une fermeture géométrique.
  2. Élément de coffrage selon la revendication 1, caractérisé en ce qu'il comprend un mandrin expansible (4) amovible pouvant être mis en place par le haut, l'ensemble constituant une unité fonctionnelle intégrante du coffrage à joints plats (8).
  3. Élément de coffrage selon la revendication 1 ou 2, caractérisé en ce que le mandrin expansible (4) est réalisé de manière à adhérer, selon un axe horizontal, d'une part, à l'élément de base (1) du coffrage à joints plats (8), et, d'autre part, à la paroi intérieure du corps pousseur (6) aux fins de faire sauter la masse de béton (10) à laquelle adhère l'élément de coffrage respectivement l'élément de base (1).
  4. Élément de coffrage selon l'une ou plusieurs des revendications 1 à 3, caractérisé en ce que plusieurs mandrins expansibles (4), coopérant de préférence avec un mécanisme de levage (12), sont réunis pour former une unité (9).
  5. Élément de coffrage selon l'une ou plusieurs des revendications 1 à 4, caractérisé en ce que le mandrin expansible (4) est une unité « piston et cylindre » hydraulique ou pneumatique.
  6. Élément de coffrage selon l'une ou plusieurs des revendications 1 à 4, caractérisé en ce que le mandrin expansible (4) est réalisé avec commande de broche électromécanique.
  7. Procédé pour l'extraction d'un coffrage à joints plats (8) pouvant être monté par assemblage d'éléments de coffrage et réalisé selon l'une des revendications 1 à 6, caractérisé par les étapes de travail suivantes :
    un mandrin expansible (4) respectivement une unité consistant dans la réunion de plusieurs mandrins expansibles, par exemple sous la forme d'un chariot pousseur expansible (9) sont insérés par le haut, à l'aide d'un mécanisme de levage, chacun dans au moins un passage vertical d'un élément de base (1) pour coffrage à joints plats,
    les éléments de base (1) pour coffrage à joints plats sont successivement décollés du béton (10) auquel ils adhèrent, de préférence du haut vers le bas, par écartement assuré par le ou les mandrins expansibles,
    après que les éléments de base (1) pour coffrage à joints plats ont été décollés du béton (10), le coffrage à joints plats (8) complet, le ou les corps pousseur(s) (6) y compris, sont retirés vers le haut et extraits de la paroi moulée (12).
EP99106413A 1998-04-22 1999-03-27 Panneau de coffrage d'une paroi moulée dans le sol et procédé pour son extraction Expired - Lifetime EP0952258B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19817982 1998-04-22
DE19817982A DE19817982C1 (de) 1998-04-22 1998-04-22 Schalungselement einer Flachfugenschalung und Verfahren zu dessen Ausbau

Publications (3)

Publication Number Publication Date
EP0952258A2 EP0952258A2 (fr) 1999-10-27
EP0952258A3 EP0952258A3 (fr) 2000-01-05
EP0952258B1 true EP0952258B1 (fr) 2002-10-23

Family

ID=7865451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99106413A Expired - Lifetime EP0952258B1 (fr) 1998-04-22 1999-03-27 Panneau de coffrage d'une paroi moulée dans le sol et procédé pour son extraction

Country Status (7)

Country Link
EP (1) EP0952258B1 (fr)
AT (1) ATE226664T1 (fr)
DE (2) DE19817982C1 (fr)
DK (1) DK0952258T3 (fr)
ES (1) ES2188052T3 (fr)
HK (1) HK1023798A1 (fr)
PT (1) PT952258E (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10113289B2 (en) 2016-01-07 2018-10-30 V-Forms, LLC Forms and subsurface structural elements that redirect soil forces

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114525777A (zh) * 2022-02-22 2022-05-24 上海市基础工程集团有限公司 用于橡胶钢板止水带的自顶推接头箱

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56139306A (en) * 1980-04-01 1981-10-30 Takenaka Komuten Co Ltd Locking pipe for construction of underground continuous wall
FR2531733A1 (fr) * 1982-08-11 1984-02-17 Sif Entreprise Bachy Procede et dispositif d'extraction d'un coffrage dans le cadre de la realisation d'une paroi moulee dans le sol
FR2640307B1 (fr) * 1988-12-14 1993-06-11 Soletanche Coffrage pour joint d'extremite de panneau de paroi moulee
FR2647828B1 (fr) * 1989-06-06 1991-08-30 Soletanche Procede et dispositif pour decoller du beton auquel il adhere, un joint d'extremite de panneau de paroi moulee dans le sol
DE9001679U1 (de) * 1990-02-13 1991-06-13 Bauer Spezialtiefbau GmbH, 8898 Schrobenhausen Vorrichtung zum Lösen von Abschalelementen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10113289B2 (en) 2016-01-07 2018-10-30 V-Forms, LLC Forms and subsurface structural elements that redirect soil forces

Also Published As

Publication number Publication date
ATE226664T1 (de) 2002-11-15
EP0952258A2 (fr) 1999-10-27
HK1023798A1 (en) 2000-09-22
DE59903141D1 (de) 2002-11-28
DE19817982C1 (de) 1999-11-18
PT952258E (pt) 2003-03-31
EP0952258A3 (fr) 2000-01-05
DK0952258T3 (da) 2003-02-24
ES2188052T3 (es) 2003-06-16

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