EP3517688B1 - Éléments d'ancrage à fixation dans le sol - Google Patents

Éléments d'ancrage à fixation dans le sol Download PDF

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Publication number
EP3517688B1
EP3517688B1 EP18153935.4A EP18153935A EP3517688B1 EP 3517688 B1 EP3517688 B1 EP 3517688B1 EP 18153935 A EP18153935 A EP 18153935A EP 3517688 B1 EP3517688 B1 EP 3517688B1
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EP
European Patent Office
Prior art keywords
tension member
ground anchor
anchor element
flexible
ground
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.)
Active
Application number
EP18153935.4A
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German (de)
English (en)
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EP3517688A1 (fr
Inventor
Christian Lorenz
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.)
Bauer Spezialtiefbau GmbH
Original Assignee
Bauer Spezialtiefbau GmbH
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Publication date
Application filed by Bauer Spezialtiefbau GmbH filed Critical Bauer Spezialtiefbau GmbH
Priority to EP18153935.4A priority Critical patent/EP3517688B1/fr
Publication of EP3517688A1 publication Critical patent/EP3517688A1/fr
Application granted granted Critical
Publication of EP3517688B1 publication Critical patent/EP3517688B1/fr
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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
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • 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
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • E02D5/808—Ground anchors anchored by using exclusively a bonding material

Definitions

  • the invention relates to a floor anchor element with an elongated tension member, which is provided for insertion into an anchor hole in the floor, and at least one rod element, which is arranged helically on an outside of the tension member, according to the preamble of claim 1.
  • the invention relates to a method for producing a floor anchor according to claim 10.
  • a generic ground anchor is from the US 5,624,212 A known. At one end of the cable-like ground anchor, a steel rod element with a rectangular cross section is bent helically around the end. The rectangular cross-section creates sharp edges that are intended to cut open the filler and binding agent.
  • the freezer tube is made of metal and is arranged in a helical shape and at a distance from the tension member of the ground anchor.
  • ground anchor comes from the DE 70 47 539 U or the DE 26 33 139 B2 forth.
  • Floor anchors of this type are used in particular in civil engineering in order to derive existing forces as tensile forces in the ground.
  • Floor anchors are used, for example, when anchoring retaining walls, for example in construction pits.
  • a borehole is made in a floor, which can also include an approximately vertical floor wall.
  • the ground anchor After the ground anchor has been inserted into the borehole, it is filled at least in regions with a hardenable mass, in particular a cement mass, a firm connection being created between the elongated anchor element and the surrounding ground. The way in which this connection is made has a decisive influence on which tensile forces can be transferred to the ground anchor.
  • a centering device for injection anchors in which a metallic centering basket with two spacer rings and arcuate metal strips is made. This centering cage can be pushed over one or more floor anchors, the outwardly bent metal strips ensuring a spacing from the surrounding wall of the anchor hole.
  • a metallic centering basket of this type is complex in terms of production technology and is also associated with a not inconsiderable assembly outlay when it is attached to the floor anchor.
  • the spacer has a sleeve-shaped body made of rigid PVC. Several longitudinal slots are made in a central region in the sleeve body. By axially compressing the sleeve body, strip-shaped bulges form on the sleeve-shaped spacer.
  • the sleeve-shaped element can be pushed axially onto the elongated tension member of the floor anchor element.
  • a usual length of a floor anchor element of several meters which can even be up to 15 meters and more, an axial sliding of several spacers is necessary. This can be complex, particularly under construction site conditions.
  • an inner diameter of the sleeve-shaped spacer must be matched exactly to the outer diameter of the tension member of the anchor element. In the inserted state, there is also the problem that the bulging plastic strips deform back under appropriate forces and the function of the spacer is thereby impaired.
  • the invention has for its object to provide a floor anchor element with a spacer and a method for producing such an anchor element, with which a simple structure of the floor anchor element can be achieved with a particularly good distance function.
  • the object is achieved according to the invention on the one hand by a floor anchor element with the features of claim 1 and on the other hand by a method for producing a floor anchor with the features of claim 10.
  • the spacer device has at least one flexible rod element, which is arranged in a helical manner around the tension member.
  • the flexible rod element is wound around the elongate tension member in a simple manner.
  • the flexible rod element does not have to be matched to a specific outer diameter of the tension member.
  • the length of the flexible rod element can be made as desired, so that any number of wraps around the tension member can take place.
  • the bar material can be purchased as an inexpensive mass-produced item on rolls, which can be used for a large number of different floor anchor elements.
  • the flexible rod element is a tube or a hose.
  • the flexible tube or hose are made of a plastic material with a desired strength to absorb expected lateral or transverse forces and to withstand them.
  • a particularly expedient choice of material is that the flexible rod element is a corrugated tube.
  • a corrugated pipe is a pipe made of a relatively rigid material, which is provided with a wavy changing diameter over the axial length. Due to the corrugation, the tube made of the rigid material has become flexible.
  • Corrugated pipes can be made of metal or preferably of a plastic material. Corrugated pipes are a typical mass product, which is particularly used in electrical installation.
  • a further preferred embodiment of the invention consists in that the elongated tension member has at least one tension rod and / or at least one tension strand.
  • a tension rod consists of an essentially uniform, rigid material, while a tension strand is flexibly constructed from wires or ropes.
  • the tension member preferably consists of a metallic material, in particular structural steel.
  • the elongated tension member has a plurality of tension rods and / or tension strands. Several tension rods and / or tension strands can thus be combined to form a tension element in order to absorb particularly large forces.
  • the spacer device according to the invention can preferably be arranged around the elongate tension member as a whole or around individual tension rods or tension strands.
  • the flexible rod element with at least one turn is arranged at least along an axial section of the tension member.
  • the flexible rod element is arranged approximately helically or helically. Two, three or more turns are preferably provided.
  • the floor anchor element it is advantageous that several flexible rod elements are provided, which are arranged along the tension member with an axial distance from one another.
  • a region-saving arrangement of a plurality of flexible rod elements along the tension member can form a material-saving and reliably acting spacer.
  • the axial distances can be between 20 cm and several meters from each other.
  • the flexible rod element extends essentially along the entire length of the tension member. Due to the flexibility of the rod element, a pitch of the helix or windings can be set almost arbitrarily.
  • the rod element designed as a tube or hose has a line connection for a fluid and at least one outlet opening.
  • the hollow rod element can be provided for supplying or injecting a cement suspension.
  • the hollow rod element can also be used to hold Lines, such as measurement lines for sensor devices are provided. In this way, a cable or a fluid can be supplied from the free end of a floor anchor element into the floor area along the tension member.
  • the flexible rod element can be attached to the tension member as a spacing device in any suitable manner.
  • a fastening element in particular an adhesive tape.
  • Tensioning or Velcro straps and other fixing or tensioning straps can be provided as fastening elements.
  • a particularly simple and efficient fixation can be achieved by an appropriately designed adhesive tape.
  • the above-mentioned object is also achieved by a method for producing a floor anchor, in which an elongate tension member is wrapped at least in regions with at least one flexible rod element, a floor anchor element according to the invention described above being formed with a spacer.
  • a method for producing a floor anchor in which an elongate tension member is wrapped at least in regions with at least one flexible rod element, a floor anchor element according to the invention described above being formed with a spacer.
  • the spacing device can be attached and fastened in a simple manner either in a pre-assembly in a factory or directly at the construction site.
  • the spacer device according to the invention also offers the advantage that the floor anchor elements can be transported in a particularly gentle manner.
  • a further development of the method according to the invention consists in that the floor anchor element is introduced into an anchor hole in the floor and that the anchor hole is at least partially filled with a hardenable mass.
  • the anchor hole is created by a corresponding drilling device, in particular an anchor drilling device.
  • the ground anchor element can be inserted into the anchor hole directly during the drilling process or after a drilling tool has been withdrawn.
  • a hardenable mass in particular a cement suspension, can be injected into the anchor hole, a firm connection being made at least from regions of the floor anchor element to the floor.
  • a elongated drill anchor element 10 with a front elongated tension member 12 is shown in a highly schematic manner.
  • the tension member 12 can in particular be a metallic rod or a tension strand constructed from wires or ropes, the tension member 12 having a length of several meters.
  • a connecting section 14 can be provided, which is designed for receiving and connecting with a threaded element for bracing.
  • a flexible rod element 22 is wound as a spacer 20 almost along the entire length of the tension member 12.
  • the winding takes place helically, a pitch of about 20 cm to 1.5 m can be provided. Deviations from this are possible.
  • the flexible rod element 22 is preferably designed as a corrugated tube, which is used, for example, in electrical installations.
  • a ground anchor element 10 according to the invention is shown in a modified embodiment variant.
  • a total of four flexible rod elements 22 are arranged along the tension member 12, axially spaced apart, which wind around axial sections of the tension member 12.
  • the distance between the individual rod elements 22 can be approximately half a meter to several meters.
  • the total of four rod elements 22 form a spacer 20 in their entirety, the tension member 12 being at least spaced apart from the surrounding wall of an anchor hole by the diameter of the flexible rod element 22.
  • FIG. 3 A further modified embodiment is shown for a floor anchor element 10 according to the invention.
  • the rear flexible rod element 22 can also be wrapped in regions around the rear connecting section 14 of the floor anchor element 10.

Claims (11)

  1. Élément d'ancrage à fixation dans le sol comportant
    - un organe de traction (12) oblong, lequel est prévu pour l'introduction dans un trou d'ancrage dans le sol, et
    - au moins un élément de type tige (22), lequel est agencé en hélice autour de l'organe de traction (12),
    caractérisé en ce que
    - l'élément de type tige (22) est réalisé comme un tube flexible ou un tuyau flexible, à chaque fois réalisé en un matériau synthétique et
    - en ce que le tube flexible ou le tuyau flexible en matériau synthétique est enroulé autour de l'organe de traction (12), ce par quoi un dispositif d'écartement (20) est réalisé au niveau d'un côté extérieur de l'organe de traction (12) pour l'espacement de l'organe de traction (12) par rapport à un environnement dans le trou d'ancrage.
  2. Élément d'ancrage à fixation dans le sol selon la revendication 1,
    caractérisé en ce que
    l'élément de type tige flexible (22) est un tube ondulé.
  3. Élément d'ancrage à fixation dans le sol selon la revendication 1 ou 2,
    caractérisé en ce que
    l'organe de traction oblong (12) présente au moins une barre de traction et/ou au moins un cordon de traction.
  4. Élément d'ancrage à fixation dans le sol selon la revendication 3,
    caractérisé en ce que
    l'organe de traction (12) oblong présente une pluralité de barres de traction et/ou de cordons de traction.
  5. Élément d'ancrage à fixation dans le sol selon l'une des revendications 1 à 4,
    caractérisé en ce que
    l'élément de type tige (22) flexible est agencé avec au moins un enroulement au moins le long d'une section axiale de l'organe de traction (12).
  6. Élément d'ancrage à fixation dans le sol selon l'une des revendications 1 à 5,
    caractérisé en ce que
    plusieurs éléments de tige (22) flexibles sont prévus, lesquels sont agencés le long de l'organe de traction (12) à une distance axiale les uns par rapport aux autres.
  7. Élément d'ancrage à fixation dans le sol selon l'une des revendications 1 à 5,
    caractérisé en ce que
    l'élément de type tige (22) flexible s'étend sensiblement le long de toute la longueur de l'organe de traction (12).
  8. Élément d'ancrage à fixation dans le sol selon l'une des revendications 1 à 7,
    caractérisé en ce que
    l'élément de type tige (22) réalisé comme tube ou tuyau présente un raccord de conduite pour un fluide et au moins une ouverture de sortie.
  9. Élément d'ancrage à fixation dans le sol selon l'une des revendications 1 à 8,
    caractérisé en ce que
    l'élément de type tige (22) flexible est fixé avec un élément de fixation, en particulier un ruban adhésif, à l'organe de traction.
  10. Procédé de fabrication d'une ancre à fixation dans le sol, pour lequel un organe de traction (12) oblong est enveloppé au moins par endroits avec au moins un tube flexible ou tuyau flexible, respectivement en un matériau synthétique, comme un élément de type tige (22), ce par quoi un élément d'ancrage à fixation dans le sol (10) selon l'une des revendications 1 à 9 est formé avec un dispositif d'écartement (20).
  11. Procédé selon la revendication 10,
    caractérisé en ce que
    l'élément d'ancrage à fixation dans le sol (10) est introduit dans un trou d'ancrage dans le sol et
    en ce que le trou d'ancrage est rempli au moins partiellement avec une masse durcissable.
EP18153935.4A 2018-01-29 2018-01-29 Éléments d'ancrage à fixation dans le sol Active EP3517688B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18153935.4A EP3517688B1 (fr) 2018-01-29 2018-01-29 Éléments d'ancrage à fixation dans le sol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18153935.4A EP3517688B1 (fr) 2018-01-29 2018-01-29 Éléments d'ancrage à fixation dans le sol

Publications (2)

Publication Number Publication Date
EP3517688A1 EP3517688A1 (fr) 2019-07-31
EP3517688B1 true EP3517688B1 (fr) 2020-07-08

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3913144B1 (fr) 2020-05-22 2023-09-06 BAUER Spezialtiefbau GmbH Procédé de production d'un tirant d'ancrage dans le sol et cylindre de réception pour un élément de câble de traction

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1708531B1 (de) * 1968-02-29 1971-12-02 Dyckerhoff & Widmann Ag Verfahren zum Herstellen eines temporaeren Erdankers
DE7047539U (de) 1970-12-03 1970-12-23 Brueckner H Ohg Zentriervorrichtung für injektionsanker
DE2633139B2 (de) 1976-07-23 1980-08-28 Hubert 6000 Frankfurt Eichele Abstandhalter für das Stahlzugglied eines Verpreßankers und Verfahren zum Herstellen desselben
CA2129220A1 (fr) * 1992-01-31 1993-08-05 Maxwell Thomas Renwick Butee de cable
US5624212A (en) * 1994-07-05 1997-04-29 Gillespie; Harvey D. Anchored cable sling system
US8757934B2 (en) * 2010-08-10 2014-06-24 Fci Holdings Delaware, Inc. Fully grouted cable bolt

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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