EP0945553B1 - Dispositif de stabilisation d'un corps de paroi - Google Patents

Dispositif de stabilisation d'un corps de paroi Download PDF

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Publication number
EP0945553B1
EP0945553B1 EP99105880A EP99105880A EP0945553B1 EP 0945553 B1 EP0945553 B1 EP 0945553B1 EP 99105880 A EP99105880 A EP 99105880A EP 99105880 A EP99105880 A EP 99105880A EP 0945553 B1 EP0945553 B1 EP 0945553B1
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EP
European Patent Office
Prior art keywords
belt
tension
rod according
tension elements
tension rod
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
EP99105880A
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German (de)
English (en)
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EP0945553A1 (fr
Inventor
Wolfgang Habe
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Individual
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Individual
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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
    • E02D5/80—Ground anchors

Definitions

  • the invention relates to a tie rod for stabilizing a wall body, wherein the anchor elongated tension elements, which are inserted into the wall body Borehole are essentially parallel to the longitudinal direction of the borehole, and wherein the tension elements in the borehole in fixing positions set at a mutual distance with the help of fasteners essentially axially symmetrical in With respect to the borehole.
  • "Borehole” is within the scope of the invention hole formed in any way for inserting the tie rod in the respective Wall.
  • the tie rod should be used where the element earth is in all its occurrence types (Rock, rubble, stone, sand, etc.) in loose or processed form held, anchored or consolidated by inserting anchors - in short: mechanically stabilized - shall be.
  • the anchor can also serve as a mounting base to build or anchor for external facilities. It is applicable accordingly as a so-called mountain anchor in mining and tunnel construction or in embankment protection but also in the renovation of old buildings, avalanche protection and the like Wall stabilization.
  • the term "wall body" is used in each case through the tie rod understood wall or ceiling to be secured.
  • the tie rod system includes elongated tension elements, which in one in the each wall body introduced borehole to at least part of their Length to be anchored.
  • the tension elements can also be used as reinforcement elements be designated.
  • In the context of the invention can be made of metal or plastic existing and / or fiber-reinforced tension elements in a freely selectable cross-sectional shape, preferably in tape or circuit board or rope form.
  • a device for reinforcing embankments, walls, etc. is known from DE 27 49 068 A1.
  • an inner tube is used in the manufacture of a rock bolt Anchor provided.
  • the tube - rods made of glass fiber reinforced plastic (GRP).
  • the GRP rods are in positions at a distance from the pipe circumference in synthetic resin, that hardened, poured. It is difficult to evenly stick the bars around that Distribute pipe.
  • a rock anchor of this type is described in FR 26 43 096 B1. This exists from a central injection pipe and a multitude of twisted into ropes Anchor strands. The ropes are placed in individual pipes distributed around the injection pipe arranged in the bore receiving the rock bolt. The single pipes are positioned freely around the injection pipe centered in the mountain borehole. After installation is complete, the anchor is cemented or the like in the borehole pour hardening material.
  • reinforcing tension elements are supported on one central injection tube and bundled around this inserted into the borehole.
  • the injection pipe With the help of support elements or spacers between the injection tube and tension elements, the injection pipe is centered in the borehole.
  • mixture of cement, synthetic resin and the like hardening referred to as "mortar" Materials pressed into the borehole. It should be achieved that the traction elements arranged around the injection pipe firmly with the surrounding one Wall bodies (e.g. mountains) are connected when the mortar has hardened is.
  • the tie rods of the type described are of particular importance in tunnel construction. Not only the tunnel walls and ceilings have to be secured here, but also also the front or front wall on which the tunnel is driven.
  • the front wall can be on the order of 10 m high for road or rail tunnels. An unintentional collapse must therefore not be permitted.
  • Securing a tunnel wall is achieved, for example, by long tie rods, e.g. with a length of 24 m into the front wall.
  • the built-in Tie rods are removed during the subsequent dismantling, e.g. piece by piece, separated, she should therefore consist of a material (such as plastic) that the work of respective mining machine not hindered.
  • tie rods to be inserted into the tunnel bulkhead can, depending on the quality of the mountains roughly parallel to each other but also radiating for simultaneous securing of the walls and ceilings that are created during driving. In practice, it is common to install another series of tie rods in the front wall, if about half of the previous series is reduced by driving is.
  • the invention has for its object that before being introduced into a borehole successful assembly of the tension elements with a predetermined, defined distribution to facilitate so that the final assembly, which often, e.g. in the tunnel, in relatively cramped conditions Space must take place, with a few simple steps or essentially automatically, in particular mechanically.
  • optionally - also interchangeable - other installations such as an injection tube, an injection lance, a boring bar, cable guides and the like can be installed.
  • n pieces of tension elements, which are mounted on the belt are, together, an n-square column with an approximately regular n-corner cross-section form. Because the assembled tie rod is stable against bending - regardless of how the tie rod is rotated about its longitudinal axis - the bigger If the anchor cross-section is more similar to the circle, the tension elements should be preferred be arranged so that they together approximate the circle Open the cross section. It can be particularly favorable if the tension elements even transverse to its longitudinal direction following the spanned circular cross-section are bent.
  • the invention also ensures that the tension elements (for each fixing position) to be fastened in a belt so that the belt with attached tension elements can be easily erected and locked at the respective construction site can.
  • Such work can also be carried out in a confined space, it is especially suitable for mechanization or automation.
  • the tension elements can already be pre-assembled on spread belts on the Construction site to be delivered. To do this, it is sufficient if the single belt fastener for pre-assembling the pulling elements - with a specific mounting position for each tension element - on its preferably held by hinges Has links.
  • the belt itself can be made rigid or by the Attaching the (possibly rigid) tension elements are stiffened.
  • One injection tube can namely consist of two or more individual tubes or Veins.
  • the number of tension elements is also due to the invention not limited. Depending on the task and available space at the Construction sites can have a few, preferably three, platinum or strip-shaped tension elements, or any number, e.g. many, essentially parallel in the borehole tension elements extending to the borehole axis can be provided. Most notably belts according to the invention with three rigid links, because such Belt e.g. three platinum-shaped tension elements without the need for additional components would be able to stand up as a (spatial) triangle.
  • the belt itself can be made of metal or plastic.
  • a belt preferred according to the invention has exactly three hinges held together Limbs, it can be erected into a spatial triangle and closed by a lock (or the like) in a ring.
  • the belt holds The applied tension elements defined spatially together, so that the tie rod - as it is, with or without installed installations, such as an injection tube - in a borehole can be inserted and "cemented" with mortar or the like.
  • the tension elements to be used according to the invention can be of various types Manner, e.g. as rods with a circular cross-section or - as preferred - as Ribbons, strips or boards, the width of which is a multiple of the thickness become.
  • Tension elements of this plate or strip shape are preferred, if it is favorable for the application that the element in the direction in which you would wind it flat as a tape, much more flexible than in the direction of its Main levels, which are its two faces, is.
  • An improvement of the tie rod according to another invention is that on Belt circumference more than three tension elements, e.g. six, eight or twelve tension elements, be mounted so that the tie rod is approximately one circular cross section.
  • tension elements e.g. six, eight or twelve tension elements
  • the bending stability becomes increasingly independent of whether the anchor when inserted into the borehole on an edge of two tension elements or lies flat on a tension element.
  • the independence of the deflection the orientation of the tie rod about its longitudinal axis increases, depending the common cross-section of the tension elements of the circular shape becomes more similar.
  • the belt not only has the fasteners for the orderly reception of the tension elements, but also the spacers for centering if necessary through the Traction elements enclosed installations should include.
  • the belt is supposed to face the injection tube on its final assembly Inside - opposite the receiving positions of the tension elements - Have spacers that help the installation when erecting the pre-assembled Tension elements and laying the tension elements around the respective installation center automatically. The desired axial symmetry then necessarily occurs.
  • the tie rod according to the invention intended for stabilizing a wall body contains tension elements that insert into a hole made in the wall body and there, preferably integrally, to be connected to the wall material.
  • the tension elements are essentially axially symmetrical with the aid of fastening means connected together in relation to the respective borehole.
  • the single fastener is made from one Links and existing belt to be closed with a belt lock on the belt links there are receiving positions for at least one tension element each intended.
  • a belt according to the invention is opened in the Representation 2 and in the closed representation 3 in section perpendicular to Hole axis 4 shown.
  • the belt 1 is like this trained that he is able to three elongated tension elements 5 (with rectangular cross section) symmetrical with respect to the bore axis 4 and possibly to position defined on a centered injection tube 6. Owns for this purpose the belt 1 has 8 clips 9 on each of its links on its outer surface 7 for the defined fastening of each tension element 5.
  • the belt 1 on its inner surface 10 each of its links 8 has a centering shape a spacer 11.
  • the belt 1 has two on it Longitudinal ends 12 and 13 pluggable lock parts 14 and 15 with bolts 16, which together form a quick release buckle 17.
  • the single ones Links 8 of the belt 1 can, like the latch 16, preferably via hinges 18 Film hinges to be connected together.
  • Fig. 1 shows a concentric to the circle symbolizing the injection tube 6 Circle of larger diameter. This indicates that the injection tube is different Can have a diameter or that instead of the injection tube also others Installations of the type indicated above - if necessary (as drawn) modified or shortened - spacers 11 are added can.
  • the tension elements can be used to assemble a device according to the invention 5 already in the spread belt 1 (in its bracket 9).
  • a belt link 8 e.g. the middle Link 8a
  • the other two links 8b and 8c on the hinges 18 be so that the spacers 11b and 11c against the injection tube 6 encounter, the lock parts 14 and 15 meet and the bolt 16 a recess 19 of the longitudinal end 12 engages.
  • the assembly may be cheap if the first with the injection tube 6 coming into contact spacers 11a a concave receiving surface 20th has, so that the injection tube 6, even if it is not laterally through the two other spacers 11b and 11c is held, a defined position opposite the belt 1, or this opposite the tube 6, can take.
  • the device according to the invention thus allows the tension elements 5 already in the to fix open, flat belt 1 defined.
  • the belt 1 After erecting the Belt 1 - if necessary after laying around the respective injection tube 6, not only in the end, but also in the middle valves for injecting Can have mortar -, the belt 1 is closed and by the quick release 17 secured. If necessary, the injection tube 6 with the help of the Belt 1 integrally formed or integrated in the inventive device spacers 11 automatically centered.
  • the attachment of the tension elements 5 to the belt 1 can not only mechanical, but also chemical Manner, e.g. by gluing.
  • the individual belts 1 can with appropriate Width (measured in the longitudinal direction of the respective hole) also as Coupling parts for attaching an extension of the tension elements 5 and / or respective installation.
  • a belt 1 is shown, the six tension elements 5 - e.g. in brackets 9 as assembled in Fig. 1 - receives.
  • the six train elements 5 like the surfaces of a regular hexagonal column on the Links 8 attached documents 21 are arranged. In the scope of the invention irregular hexagon cross sections also fall. Even the number of Edges or tension elements are not essential according to the invention. Except for the three Edges according to FIG. 1 or the six edges or surfaces according to FIG. 2 can each four, five, seven, eight, etc. surfaces as required (bending strength / effort) and accordingly tension elements are included on the belt circumference.
  • FIG. 3 shows the cross section of three tension elements 5 combined in a tie rod, the body or surfaces of the circular shape bent transversely to the axis 4 are. Together, the tension elements 5 according to FIG. 3 span an approximately circular one Cross section - as shown - on. According to the drawing, the tension elements 5 positioned on links 8, the shape of which is adapted to that of the tension elements is.
  • the components of the tie rod according to the invention in particular the belt and its parts can be made of metal or plastic or the like chemically and mechanically stable materials.
  • the materials may vary other requirements, e.g. electrically conductive or insulating, flame retardant or be selected to be permanent, self-rotting, or permanent.
  • the spacers 11 or centering of the belt members 8 can in the frame the invention can also be designed so that it can be used simultaneously or subsequently Management of various installations, e.g. Boring bars, injection lances or pipes or cable guides are suitable.

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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)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Piles And Underground Anchors (AREA)
  • Insertion Pins And Rivets (AREA)
  • Building Environments (AREA)
  • Fencing (AREA)
  • Die Bonding (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Claims (16)

  1. Tirant d'ancrage pour la stabilisation d'un corps de paroi, ledit tirant comportant des éléments de tirage (5) allongés qui doivent être insérés dans une forure ménagée dans le corps de paroi sensiblement parallèlement à la direction longitudinale (4) de la forure, dans lequel les éléments de tirage (5) sont rassemblés, dans la forure, dans des positions de fixation qui sont placées à distance l'une de l'autre, au moyen de moyens de fixation, sensiblement avec une symétrie axiale par rapport à la forure, caractérisé en ce que le moyen de fixation associé à une position de fixation individuelle est constitué d'une ceinture (1) formée par des éléments (8) et devant être fermée par un verrou de ceinture (17) et en ce que l'on prévoit, sur les éléments (8), des positions de réception (9) pour, à chaque fois, au moins un élément de tirage (5).
  2. Tirant d'ancrage selon la revendication 1, caractérisé en ce que la ceinture (1) possède, pour le montage d'au moins trois éléments de tirage (5) ou plus, un nombre égal d'éléments (8) et/ou, sur chaque élément, un nombre correspondant de positions de fixation.
  3. Tirant d'ancrage selon la revendication 1 ou 2, caractérisé en ce que n exemplaires d'éléments de tirage (5) montés sur la ceinture (1) forment, ensemble, une colonne présentant, en section, sensiblement la forme d'un polygone régulier à n côtés, dans lequel n = 3, 4, 6 ....
  4. Tirant d'ancrage selon l'une au moins des revendications 1 à 3, caractérisé en ce que les éléments de tirage (5) sont disposés le plus près possible les uns des autres de telle manière qu'ils déterminent, ensemble, une section proche d'un cercle.
  5. Tirant d'ancrage selon la revendication 4, caractérisé en ce que les éléments de tirage (5) sont courbés eux-mêmes selon une direction transversale par rapport à leur direction longitudinale (4).
  6. Tirant d'ancrage selon la revendication 1, caractérisé en ce que le moyen de fixation possède des positions de réception (9) pour le prémontage des éléments de tirage (5) dans le cas d'une ceinture (1) disposée à plat (2).
  7. Tirant d'ancrage selon la revendication 1 ou 2, caractérisé en ce que les éléments (8) de la ceinture (1) sont rigidifiés par la mise en place des éléments de tirage (5).
  8. Tirant d'ancrage selon au moins l'une quelconque des revendications 1 à 7, caractérisé en ce que l'on prévoit les positions de réception (9) pour les éléments de tirage (5) sur la face extérieure (7) de la ceinture (1) qui doit être dirigée, après le montage final des éléments de tirage (5), vers la paroi de la forure correspondante.
  9. Tirant d'ancrage selon au moins l'une quelconque des revendications 1 à 4, caractérisé en ce que, sur les positions de réception, on forme des agrafes (9) pour le blocage des éléments de tirage (5) sur la ceinture (1).
  10. Tirant d'ancrage selon au moins l'une quelconque des revendications 1 à 7, caractérisé en ce que les éléments de tirage (5) sont fixés par verrouillage de matière sur les positions de réception (9) sur la ceinture (1).
  11. Tirant d'ancrage selon au moins l'une quelconque des revendications 1 à 10, caractérisé en ce que la ceinture (1) possède exactement trois éléments (8) qui sont maintenus ensemble de préférence au moyen de charnières (18), qui sont sensiblement semblables et qui peuvent être dressés pour former un anneau fermé à trois côtés, au moyen de du verrou de ceinture (17).
  12. Tirant d'ancrage selon au moins l'une quelconque des revendications 1 à 11, caractérisé en ce que, en tant que verrou de ceinture (17), on prévoit une fermeture rapide du type d'une fermeture à embrochage ou à encliquetage.
  13. Tirant d'ancrage selon au moins l'une quelconque des revendications 1 à 12, caractérisé en ce que la ceinture (1) à l'état monté et les éléments de tirage (5) qui y sont fixés entourent d'autre installations à introduire dans chaque forure, en particulier un tube d'injection, une lance d'injection ou un guide de câble.
  14. Tirant d'ancrage selon la revendication 13, caractérisé en ce que l'installation respective, en particulier un tube d'injection (6) adapté pour l'introduction de mortier dans la forure, est centrée par rapport à la forure au moyen d'écarteurs (11) prévus sur la ceinture (1).
  15. Tirant d'ancrage selon au moins l'une quelconque des revendications 1 à 14; caractérisé en ce que les écarteurs (11) sont formés sur la ceinture (1).
  16. Tirant d'ancrage selon au moins l'une quelconque des revendications 1 à 15, caractérisé en ce qu'au moins un des écarteurs (11a) comporte une surface de réception (20) pour le positionnement respectif défini de la ceinture (1) et du tube d'injection (6) lors du montage.
EP99105880A 1998-03-25 1999-03-24 Dispositif de stabilisation d'un corps de paroi Expired - Lifetime EP0945553B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29805352U 1998-03-25
DE29805352U DE29805352U1 (de) 1998-03-25 1998-03-25 Vorrichtung zum Stabilisieren eines Wandkörpers

Publications (2)

Publication Number Publication Date
EP0945553A1 EP0945553A1 (fr) 1999-09-29
EP0945553B1 true EP0945553B1 (fr) 2001-10-24

Family

ID=8054705

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99105880A Expired - Lifetime EP0945553B1 (fr) 1998-03-25 1999-03-24 Dispositif de stabilisation d'un corps de paroi

Country Status (5)

Country Link
EP (1) EP0945553B1 (fr)
AT (1) ATE207563T1 (fr)
DE (2) DE29805352U1 (fr)
ES (1) ES2167107T3 (fr)
PT (1) PT945553E (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR963742A (fr) * 1950-07-19
DE2749068A1 (de) 1977-11-02 1979-05-03 Gebirgssicherung Gmbh Gebirgsanker
FR2643096B1 (fr) 1989-02-14 1991-05-10 Soletanche Tirant d'ancrage
IT1275231B (it) * 1995-02-09 1997-07-31 Sireg S P A Soc It Di Ricerca Dispositivo per l'armatura il consolidamento e la stabilizzazione del terreno particolarmente atto ad impedire frane o deformazioni del fronte di scavo in gallerie o scavi in trincea

Also Published As

Publication number Publication date
DE29805352U1 (de) 1998-06-10
DE59900334D1 (de) 2001-11-29
EP0945553A1 (fr) 1999-09-29
PT945553E (pt) 2002-04-29
ATE207563T1 (de) 2001-11-15
ES2167107T3 (es) 2002-05-01

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