EP0945553A1 - Vorrichtung zum Stabilisieren eines Wandkörpers - Google Patents
Vorrichtung zum Stabilisieren eines Wandkörpers Download PDFInfo
- Publication number
- EP0945553A1 EP0945553A1 EP99105880A EP99105880A EP0945553A1 EP 0945553 A1 EP0945553 A1 EP 0945553A1 EP 99105880 A EP99105880 A EP 99105880A EP 99105880 A EP99105880 A EP 99105880A EP 0945553 A1 EP0945553 A1 EP 0945553A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- belt
- tension elements
- tie rod
- rod according
- borehole
- 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
Links
Images
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 with the aid of elongated tension elements which are to be inserted into a borehole made in the wall body essentially parallel to the longitudinal direction of the borehole, the tension elements in the borehole in fixing positions set at a mutual distance using fastening means essentially axially symmetrical are bundled with respect to the borehole.
- borehole is a hole in the respective wall formed in any way for inserting the tie rod.
- the tie rod should be used where the element earth in all its occurrence types (rock, scree, stone, sand, etc.) is to be held, fixed or consolidated - in short: mechanically stabilized - in loose or processed form by introducing anchors.
- the anchor can also be used to build or anchor a mounting base for external devices. Accordingly, it can be used as a so-called rock anchor in mining and tunnel construction or slope protection, but also in the renovation of old buildings, in avalanche protection and similar wall stabilization. Under the term Wall body "means the wall or ceiling to be secured by the tie rod.
- 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 a central injection tube and are inserted into the borehole in a bundle around it.
- the injection tube is centered in the borehole with the aid of support elements or spacers between the injection tube and tension elements.
- About the fully installed injection tube is also within the scope of the present invention Mortar "designated mixture of cement, synthetic resin and the like hardening materials pressed into the borehole. It should be achieved that the tension elements arranged around the injection pipe are firmly connected to the respective surrounding wall body (eg rock) when the mortar has hardened.
- 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. Accidental collapse should 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.
- the solution according to the invention exists for the tie rod of the type mentioned at the beginning, whose tension elements in certain fixing positions with the help of fasteners are bundled axially symmetrical with respect to the borehole, in that the one individual fixing position associated fasteners from a link formed belt to be closed with a belt lock and that to the Links receiving positions provided for at least one tension element are.
- 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 links held together by hinges, it can be erected into a three-dimensional triangle and closed in a ring shape by a lock (or the like).
- the belt holds the applied tension elements spatially together, so that the tie rod - as it is, ie with or without installed installations, such as an injection pipe - is inserted into a borehole and with mortar or the like can be cemented ".
- 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.
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)
- Piles And Underground Anchors (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Die Bonding (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Fencing (AREA)
- Insertion Pins And Rivets (AREA)
- Building Environments (AREA)
- Supporting Of Heads In Record-Carrier Devices (AREA)
Abstract
Description
- Fig. 1
- einen Gürtel in offener und geschlossener Stellung für drei Zugelemente;
- Fig. 2
- einen Gürtel für sechs Zugelemente; und
- Fig. 3
- einen Zugankerquerschnitt mit gebogenen Zugelementen.
- 1 =
- Gürtel
- 2 =
- offene Darstellung (1)
- 3 =
- geschlossene Darstellung (1)
- 4 =
- Bohrungsachse
- 5 =
- Zugelement
- 6 =
- Injektionsrohr
- 7 =
- Außenfläche (1)
- 8 =
- Glied (1)
- 9 =
- Klammer (8)
- 10 =
- Innenfläche (1)
- 11 =
- Abstandhalter
- 12, 13 =
- Längsenden (1)
- 14, 15 =
- Schloßteil
- 16 =
- Riegel
- 17 =
- Gürtelschloß
- 18 =
- Scharnier
- 19 =
- Ausnehmung
- 20 =
- Aufnahmefläche
- 21 =
- Unterlage
Claims (16)
- Zuganker zum Stabilisieren eines Wandkörpers mit Hilfe von langgestreckten Zugelementen (5), die in ein in den Wandkörper eingebrachtes Bohrloch im wesentlichen parallel zur Bohrlochlängsrichtung (4) zu stecken sind, wobei die Zugelemente (5) im Bohrloch in auf gegenseitigen Abstand gesetzten Fixierpositionen mit Hilfe von Befestigungsmitteln im wesentlichen axialsymmetrisch in Bezug auf das Bohrloch gebündelt sind, dadurch gekennzeichnet, daß das einer einzelnen Fixierposition zugeordnete Befestigungsmittel aus einem aus Gliedern (8) gebildeten, mit einem Gürtelschloß (17) zu schießenden Gürtel (1) besteht und daß an den Gliedern (8) Aufnahmepositionen (9) für jeweils mindestens ein Zugelement (5) vorgesehen sind.
- Zuganker nach Anspruch 1, dadurch gekennzeichnet, daß der Gürtel (1) zum Montieren von drei oder mehr Zugelementen (5) entsprechend gleich viele Glieder (8) und/oder an jedem Glied entsprechend viele Aufnahmepositionen besitzt.
- Zuganker nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß n Stück am Gürtel (1) montierten Zugelemente (5) insgesamt eine Säule mit annähernd regelmäßigem n-Eck-Querschnitt bilden, wobei n= 3, 4, 6... gilt.
- Zuganker nach mindestens einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Zugelemente (5) möglichst angenähert so angeordnet sind, daß sie insgesamt einen dem Kreis angenäherten Querschnitt aufspannen.
- Zuganker nach Anspruch 4, dadurch gekennzeichnet, daß die Zugelemente (5) selbst quer zu ihrer Längsrichtung (4) dem aufgespannten Kreisquerschnitt folgend gebogen sind.
- Zuganker nach Anspruch 1, dadurch gekennzeichnet, daß das Befestigungsmittel Aufnahmepositionen (9) zum Vormontieren der Zugelemente (5) bei flach liegendem (2) Gürtel (1) besitzt.
- Zuganker nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Glieder(8) des Gürtels (1) durch Anbringen der Zugelemente (5) versteift sind.
- Zuganker nach mindestens einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Aufnahmepositionen (9) für die Zugelemente (5) auf der nach deren Endmontage der Wandung des jeweiligen Bohrlochs zuzuwendenden Außenseite (7) des Gürtels (1) vorgesehen sind.
- Zuganker nach mindestens einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß an die Aufnahmepositionen Klammern (9) zum Arretieren der Zugelemente (5) an dem Gürtel (1) angeformt sind.
- Zuganker nach mindestens einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Zugelemente (5) an den Aufnahmepositionen (9) am Gürtel (1) stoffschlüssig befestigt sind.
- Zuganker nach mindestens einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß der Gürtel (1) genau drei, vorzugsweise durch Scharniere (18) zusammengehaltene, insbesondere im wesentlichen gleiche, Glieder (8) besitzt, die mit Hilfe des Gürtelschlosses (17) zu einem geschlossenen Dreikantring aufrichtbar sind.
- Zuganker nach mindestens einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß als Gürtelschloß (17) ein Schnellverschluß nach Art eines Steck- bzw. Einrastverschlusses vorgesehen ist.
- Zuganker nach mindestens einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß der montierte Gürtel (1) und die daran befestigten Zugelemente (5) andere in das jeweilige Bohrloch einzuführende Installationen, insbesondere ein Injektionsrohr, eine Injektionslanze oder eine Kabelführung, umschließt.
- Zuganker nach Anspruch 13, dadurch gekennzeichnet, daß die jeweilige Installation, insbesondere eine zum Einsetzen von Mörtel in das Bohrloch geeignetes Injektionsrohr (6), mit Hilfe von am Gürtel (1) vorgesehenen Abstandhaltern (11) in Bezug auf das Bohrloch zentriert ist.
- Zuganker nach mindestens einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß die Abstandhalter (11) an den Gürtel (1) angeformt sind.
- Zuganker nach mindestens einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß wenigstens einer der Abstandhalter (11a) eine Aufnahmefläche (20) zum definierten gegenseitigen Positionieren von Gürtel (1) und Injektionsrohr (6) bei der Montage aufweist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29805352U DE29805352U1 (de) | 1998-03-25 | 1998-03-25 | Vorrichtung zum Stabilisieren eines Wandkörpers |
DE29805352U | 1998-03-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0945553A1 true EP0945553A1 (de) | 1999-09-29 |
EP0945553B1 EP0945553B1 (de) | 2001-10-24 |
Family
ID=8054705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99105880A Expired - Lifetime EP0945553B1 (de) | 1998-03-25 | 1999-03-24 | Vorrichtung zum Stabilisieren eines Wandkörpers |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0945553B1 (de) |
AT (1) | ATE207563T1 (de) |
DE (2) | DE29805352U1 (de) |
ES (1) | ES2167107T3 (de) |
PT (1) | PT945553E (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR963742A (de) * | 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 |
EP0726383A1 (de) * | 1995-02-09 | 1996-08-14 | SIREG S.P.A. Società Italiana di Ricerca Elementi per Geotecnica | Injektionsanker für Tunnel und Gräben |
-
1998
- 1998-03-25 DE DE29805352U patent/DE29805352U1/de not_active Expired - Lifetime
-
1999
- 1999-03-24 AT AT99105880T patent/ATE207563T1/de not_active IP Right Cessation
- 1999-03-24 ES ES99105880T patent/ES2167107T3/es not_active Expired - Lifetime
- 1999-03-24 EP EP99105880A patent/EP0945553B1/de not_active Expired - Lifetime
- 1999-03-24 DE DE59900334T patent/DE59900334D1/de not_active Expired - Fee Related
- 1999-03-24 PT PT99105880T patent/PT945553E/pt unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR963742A (de) * | 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 |
EP0726383A1 (de) * | 1995-02-09 | 1996-08-14 | SIREG S.P.A. Società Italiana di Ricerca Elementi per Geotecnica | Injektionsanker für Tunnel und Gräben |
EP0726383B1 (de) | 1995-02-09 | 1998-01-21 | SIREG S.P.A. Società Italiana di Ricerca Elementi per Geotecnica | Injektionsanker für Tunnel und Gräben |
Also Published As
Publication number | Publication date |
---|---|
EP0945553B1 (de) | 2001-10-24 |
PT945553E (pt) | 2002-04-29 |
ES2167107T3 (es) | 2002-05-01 |
ATE207563T1 (de) | 2001-11-15 |
DE29805352U1 (de) | 1998-06-10 |
DE59900334D1 (de) | 2001-11-29 |
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