EP0451925A1 - Système d'ancre - Google Patents

Système d'ancre Download PDF

Info

Publication number
EP0451925A1
EP0451925A1 EP91200872A EP91200872A EP0451925A1 EP 0451925 A1 EP0451925 A1 EP 0451925A1 EP 91200872 A EP91200872 A EP 91200872A EP 91200872 A EP91200872 A EP 91200872A EP 0451925 A1 EP0451925 A1 EP 0451925A1
Authority
EP
European Patent Office
Prior art keywords
anchor
sheeting
leg
insertion sheet
bottom edge
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
EP91200872A
Other languages
German (de)
English (en)
Other versions
EP0451925B1 (fr
Inventor
Leonardus Theodorus Jacobus Bus
Arie Willem Van Den Berg
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.)
Hollandsche Beton Groep NV
Original Assignee
Hollandsche Beton Groep NV
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 Hollandsche Beton Groep NV filed Critical Hollandsche Beton Groep NV
Publication of EP0451925A1 publication Critical patent/EP0451925A1/fr
Application granted granted Critical
Publication of EP0451925B1 publication Critical patent/EP0451925B1/fr
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
    • E02D19/00—Keeping dry foundation sites or other areas in the ground
    • E02D19/06—Restraining of underground water
    • E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
    • E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material

Definitions

  • the invention relates to an anchor intended for fitting at the bottom edge of a sheeting panel which has to be pressed by means of a steel insertion sheet into a ground trench as part of a wall comprising sheeting panels interconnected by section connections, which anchor is U-shaped.
  • an anchor of the type mentioned in the preamble In order to anchor a panel after it has been pushed into the ground trench, use is made of an anchor of the type mentioned in the preamble.
  • the known anchor is fixed to the bottom edge of a sheeting panel by means of a separate strip and screws. Rib-shaped spacers which prevent the insertion sheet from sticking to the sheeting panel are fitted between the insertion sheet and the sheeting panel. Fixing of the anchor to a sheeting panel is time-consuming.
  • the object of the invention is to produce the connection between anchor and sheeting panel considerably more quickly without there being any risk of wedging occurring between insertion sheet and anchor as a result of which the sheeting panel would be pulled up with the insertion sheet during the raising of said sheet after the insertion of said sheeting panel and the locks between the panels could consequently spring apart.
  • the anchor is to this end characterized in that the top piece of one of the legs of the U is bent in the direction of the other leg for the formation of a separate accommodation chamber for a thickened part present at the bottom edge of the sheeting panel, while a space exists between the free edge of the inward bent leg part and the above-mentioned other leg for the purpose of allowing through the bottom edge of the steel insertion sheet, and in that a number of recesses are provided in the anchor section for the purpose of reducing the longitudinal rigidity of the anchor.
  • the virtually vertical-running recesses in the vertical leg of the U of the anchor section which can lie against the insertion sheet during the insertion of the sheeting panel, reduce the local rigidity of the anchor section.
  • the correct wedging between anchor section and insertion sheet can be achieved by providing the correct number of such recesses over the length of the anchor section and/or adapting the length and/or the breadth of said recesses, depending on the shape of anchor section and/or bottom part of the insertion sheet, as a result of which the insertion sheet can be removed from the anchor without too much force after the sheeting panel has been pressed into the lowest position and, in addition, the sheeting panel with its locks is not placed under unnecessary stress.
  • the recesses can continue into a part of the bottom of the U.
  • the breadth of the recesses preferably lies between 0.5 and 300 mm.
  • projecting centring wings can be fixed on the anchor on both sides.
  • Figure 1 shows a cross-section through the bottom part of an anchor according to the invention with insertion sheet and sheeting panel.
  • Figure 2 shows a perspective view of the anchor.
  • the steel anchor 1 shown in the figures is in the shape of a U of which one of the flanges is bent inwards at its top part for the purpose of forming a channel into which the thickened bottom edge 2 of a sheeting panel 3 is pushed.
  • This sheeting panel is made of plastic, for example HDPE, and is connected in a manner which is known per se by edge locking sections to a sheeting panel already placed in the trenches.
  • a steel insertion sheet for pressing the sheeting panel with anchor into a ground trench 4 filled with bentonite mixture is indicated by 5 and projects with its bottom edge into the anchor.
  • centring wings 6 are fixed to the anchor 1, projecting on either side. These wings end in an upward-sloping part, so that during the downward movement of the anchor they cannot become jammed in the trench wall when they come into contact with said wall.
  • the wings are welded to the bottom of the anchor section, but they can also be connected to the anchor section at other places.
  • the wings 6 at both sides of the anchor section can also be fixed as a continuous unit to the bottom side of the anchor section.
  • Vertical-running recesses 7 are provided in order to be able to adjust the local wedging between anchor section 1 and the insertion sheet 5. These recesses are preferably of a minimum breadth of 0.5 mm and a maximum breadth of 300 mm. They can continue into the bottom of the U.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Piles And Underground Anchors (AREA)
EP19910200872 1990-04-12 1991-04-12 Système d'ancre Expired - Lifetime EP0451925B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9000875A NL9000875A (nl) 1990-04-12 1990-04-12 Anker.
NL9000875 1990-04-12

Publications (2)

Publication Number Publication Date
EP0451925A1 true EP0451925A1 (fr) 1991-10-16
EP0451925B1 EP0451925B1 (fr) 1993-07-14

Family

ID=19856923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910200872 Expired - Lifetime EP0451925B1 (fr) 1990-04-12 1991-04-12 Système d'ancre

Country Status (3)

Country Link
EP (1) EP0451925B1 (fr)
DE (1) DE69100167T2 (fr)
NL (1) NL9000875A (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479933A (en) * 1968-01-11 1969-11-25 Brown Co D S Elongated,hollow,elastomer sealing strip with elongated,laterally deformable spring
EP0074686A1 (fr) * 1981-09-15 1983-03-23 Volker Stevin Beton- En Waterbouw B.V. Méthode pour la réalisation dans le sol d'un écran, étanche à l'eau, et écran et dispositif pour l'application de la méthode
DE3540270A1 (de) * 1985-11-13 1987-05-14 Wayss & Freytag Ag Verfahren zur herstellung einer dichtwand und vorrichtung zur durchfuehrung des verfahrens

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479933A (en) * 1968-01-11 1969-11-25 Brown Co D S Elongated,hollow,elastomer sealing strip with elongated,laterally deformable spring
EP0074686A1 (fr) * 1981-09-15 1983-03-23 Volker Stevin Beton- En Waterbouw B.V. Méthode pour la réalisation dans le sol d'un écran, étanche à l'eau, et écran et dispositif pour l'application de la méthode
DE3540270A1 (de) * 1985-11-13 1987-05-14 Wayss & Freytag Ag Verfahren zur herstellung einer dichtwand und vorrichtung zur durchfuehrung des verfahrens

Also Published As

Publication number Publication date
DE69100167D1 (de) 1993-08-19
EP0451925B1 (fr) 1993-07-14
DE69100167T2 (de) 1993-10-28
NL9000875A (nl) 1991-11-01

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