EP1505253B1 - Beam with parallel belt, in particular for the extension of underground galleries and tunnels - Google Patents

Beam with parallel belt, in particular for the extension of underground galleries and tunnels Download PDF

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Publication number
EP1505253B1
EP1505253B1 EP04011896A EP04011896A EP1505253B1 EP 1505253 B1 EP1505253 B1 EP 1505253B1 EP 04011896 A EP04011896 A EP 04011896A EP 04011896 A EP04011896 A EP 04011896A EP 1505253 B1 EP1505253 B1 EP 1505253B1
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EP
European Patent Office
Prior art keywords
parallel belt
pipe sections
wire rods
parallel
belt
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
EP04011896A
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German (de)
French (fr)
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EP1505253A3 (en
EP1505253A2 (en
Inventor
Lothar Dipl.-Ing. Domanski
Rudi Dipl.-Ing. Podjadtke
Franz-Josef Dipl.-Ing. Wunderlich
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Bochumer Eisenhuette Heintzmann GmbH and Co KG
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Bochumer Eisenhuette Heintzmann GmbH and Co KG
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Publication of EP1505253A2 publication Critical patent/EP1505253A2/en
Publication of EP1505253A3 publication Critical patent/EP1505253A3/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/006—Lining anchored in the rock
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • E21D11/107—Reinforcing elements therefor; Holders for the reinforcing elements

Definitions

  • the invention relates to a Parallelgurtw for particular track construction and tunnel construction, with two parallel belt bars and the belt bars connecting crossbars, and arranged at least in the Codend Schemeen anchor carriages each having an anchor plate with double-sided pipe sections, wherein the anchor plates each have at least one opening for passing a rock anchor and the pipe sections are pushed onto the belt bars and can be fixed in aligned carriage position.
  • the invention is based on the technical problem to provide such Parallelgurtffy, which is suitable for use in routes with rectangular cross-section as well as for distances with arcuate cross-section to Hangend / First-fuse and is characterized by its adaptability to already set rock anchor as well as due to its conformability to the surface in the Hangend / First area.
  • the invention proposes in a generic Parallelgurtffy that the belt bars are designed as threaded rods and anchoring slides are fixed by means of one or both sides of the pipe sections arranged threaded nuts.
  • the parallel belt according to the invention can be used for the expansion of routes with right-angled cross-section and thus door stick as well as for the expansion of routes with arcuate cross-section partially on the circumference and / or in the longitudinal direction.
  • a hang-up / firste backup is achieved.
  • the parallel belt according to the invention but also as a rock-breakage protection in the mountains, on embankments or in road construction is suitable.
  • the end anchoring carriages allow an adaptation of the parallel strap according to the invention to already set rock anchors and consequently predetermined anchor distances.
  • an anchoring but also almost anywhere within the delivery lengths of such Parallelgurtyess is possible if over the length of the belt bars several anchor carriages are arranged.
  • the parallel strap according to the invention is threaded at its ends in the area of anchorage there existing anchors on already set rock anchors and anchor nuts tensile forces are generated in the belt bars, so that hangs a polygonal stress in the manner of a rope corner.
  • Longitudinal axis of the parallel girder according to the invention can be set, in addition, depending on the needs of the belt length more rock anchors can be introduced at approximately equal intervals.
  • the parallel belt carrier according to the invention fulfills a hammock function.
  • connection device for extending the Parallelgurtmois, with a connecting plate and on both sides of the connecting plate four paired pipe sections, of which two aligned pipe sections on the one and the other side of the connecting tab for inserting threaded nuts are spaced apart by a predetermined amount, wherein the one pair of pipe sections on the threaded rods of a parallel strap and the other pair of pipe sections on the belt bars of a Parallelbeam carrier to be pushed and by means of the belt bars on one side or both sides of the pipe sections screw-threaded nuts in aligned position zug- and optionally can be clamped pressure-resistant.
  • the threaded nuts are screwed only on one side of the pipe sections, with pressure-resistant clamping on both sides of the pipe sections on the belt bars in the tensile and / or pressure direction.
  • the connecting straps can have one or more apertures to form an anchoring tab and are therefore also set up for connection to rock anchors.
  • connection device for extending the Parallelgurtsammlungs two cranked and fastened together at least in the region of their crank for example, welded connecting rods, being provided on both sides of the connecting rods in their un-cranked areas four paired pipe sections, of which two aligned pipe sections on the one and the other connecting rod for inserting threaded nuts by a predetermined amount are distanced from each other and further wherein the one pair of pipe sections as in the previously described embodiment on the threaded rods of a Parallelgurtanys and the other pair of pipe sections on the belt bars of a parallelbeam to be connected pushed on and by the belt bars on one side or both sides of the pipe sections of screw-threaded nuts in the aligned position zug- and optionally pressure-resistant clamped si nd.
  • the two connecting rods can be connected to each other at their non-cranked rod ends by means of stabilizing webs, for example welded together.
  • Openings for the passage of rock anchors are realized between the offset and the connecting rods.
  • the parallel belt carrier according to the invention may consist of steel or plastic. In the latter case, one will use glass fiber or carbon fiber reinforced plastic.
  • This embodiment ' is also suitable for a carbon bulletproofing because such a plastic construction can easily be run over by coal winning mining machines and cut into small pieces which are easily separated from the coal in the laundry.
  • a Parallelgurtuza 1 is shown in particular for track construction and tunnel construction, with two parallel belt bars 2 and the belt bars 2 connecting transverse bars 3, for example diagonal bars.
  • At least in the Rinend Schemeen anchoring slide 4 are arranged, each having an anchor plate 5 with double-sided pipe sections 6, wherein the anchor plates 5 each have at least one opening 7 or holes for passing a rock anchor 8.
  • the pipe sections 6 are pushed onto the belt rods 2 and fixed in aligned carriage position.
  • the belt bars 2 are formed as threaded rods.
  • the anchoring carriages 4 can be fixed by means of threaded nuts 9 arranged on one or both sides of the pipe sections 6. Over the length of the belt rods 2 more anchoring slide 4 may be arranged, which is not shown and only in Fig. 2 is indicated by the rock anchor 8.
  • connection device 10 which after a first Embodiment has two cranked and at least in the region of their crank 11 welded together connecting rods 12.
  • the tensile stress is shown in the drawing, the pressure-resistant clamping indicated by dashed nuts 9.
  • the two connecting rods are welded together at their non-cranked rod ends by means of stabilizing webs 13.
  • openings 7a for rock bolts 8 are formed between the unextended rod ends.
  • the connecting device 10 a connecting plate 14 and on both sides of the connecting plate 14 four paired pipe sections 6a, 6b, of which two aligned pipe sections 6a, 6b on one and the other side of the connecting plate 14 for inserting threaded nuts 9 to a given measure are distanced from each other. Also in this case, that is one Pipe pair 6a on the belt bars 2 of a Parallelgurtsammlungs 1 and the other pair of pipe sections 6b on the belt bars 2 to be connected to a Parallelgurtanys 1a pushed. The pairs of pipe sections 6a, 6b and consequently the entire connecting device 10 can be clamped in an aligned position by means of threaded nuts 9 which can be screwed on one or both sides of the pipe sections 6 on the belt bars 2.
  • the connecting strap 14 has one or more apertures 7 to form an anchoring tab.
  • the Parallelgurtuza 1 and the connection device 10 may be made of steel or plastic.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Bridges Or Land Bridges (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

In a process to add structural strength to a tunnel lining, the lining is strengthened by twin rods (2) held in tension by anchorage clamps (4) secured in the surrounding rock by pins inserted through apertures (7). The wire rods (2) terminate in threads and locknuts (9).

Description

Die Erfindung betrifft einen Parallelgurtträger für insbesondere Streckenausbau und Tunnelausbau, mit zwei parallelen Gurtstangen und die Gurtstangen verbindenden Querstäben, und mit zumindest in den Trägerendbereichen angeordneten Verankerungsschlitten mit jeweils einer Ankerplatte mit beidseitigen Rohrabschnitten, wobei die Ankerplatten jeweils zumindest eine Durchbrechung zum Hindurchführen eines Gebirgsankers aufweisen und die Rohrabschnitte auf die Gurtstangen aufgeschoben und in ausgerichteter Schlittenposition fixierbar sind.The invention relates to a Parallelgurtträger for particular track construction and tunnel construction, with two parallel belt bars and the belt bars connecting crossbars, and arranged at least in the Trägerendbereichen anchor carriages each having an anchor plate with double-sided pipe sections, wherein the anchor plates each have at least one opening for passing a rock anchor and the pipe sections are pushed onto the belt bars and can be fixed in aligned carriage position.

Beim Bergbau und Tunnelbau ist es bekannt, mit Hilfe von Ausbauprofilen einen Ausbau zu verwirklichen, der eine Betonhinterfüllung aufweist. Diese Betonhinterfüllung wird regelmäßig einerseits mit Hilfe von Gitterträgern bewehrt, andererseits im Gebirge verankert. Die Gitterträger sind regelmäßig als Dreigurtträger ausgebildet. - Unabhängig davon kennt man im Bergbau und Tunnelbau Strecken mit bogenförmigem Querschnitt und Strecken mit rechteckigem Querschnitt. Im letzteren Fall handelt es sich um einen Türstock mit Kappe und Stempeln aus Holz oder Stahl, wobei die dem Hangenden oder der Firste zugeordnete Kappe erheblichen Biegebeanspruchungen unterworfen ist.In mining and tunneling, it is known to realize with the help of expansion profiles an expansion, which has a concrete backfill. This concrete backfilling is regularly reinforced on the one hand with the help of lattice girders, on the other hand anchored in the mountains. The lattice girders are regularly designed as Dreigurtträger. - Irrespective of this, in mining and tunneling routes with a curved cross-section and sections of rectangular cross-section are known. In the latter case, it is a doorframe with cap and stamps made of wood or steel, wherein the hanging wall or the roof associated cap is subjected to significant bending stresses.

Im gattungsbildenden Stand der Technik nach der DE 202 05 133 U1 wird ein Gitterträger für die Bewehrung von Betonkonstruktionen beschrieben. Bei diesem bestehen Obergurt, Untergurt und die Querstäbe aus Kunststoff. Das Gleiche gilt für die Ankerplatte mit zugehörigen Klemmköpfen. Zu ihrer Festlegung an den Gurten sind die Klemmköpfe und folglich die Ankerplatten jeweils mit dem Obergurt und Untergurt adhäsiv verbunden, beispielsweise verklebt. Dadurch ist eine Anpassung an bereits vorhandene Gebirgsanker und/oder den Strecken- bzw. Tunnelausbau nicht möglich.In the generic state of the art according to the DE 202 05 133 U1 a lattice girder for the reinforcement of concrete structures is described. In this upper chord, lower chord and the cross bars are made of plastic. The same applies to the anchor plate with associated clamping heads. For their attachment to the straps, the clamping heads and consequently the anchor plates are each adhesively bonded, for example glued, to the upper and lower straps. As a result, an adaptation to existing rock anchors and / or the route or tunnel construction is not possible.

Der Erfindung liegt das technische Problem zugrunde, einen derartigen Parallelgurtträger zu schaffen, welcher für den Einsatz in Strecken mit rechteckigem Querschnitt ebenso wie für Strecken mit bogenförmigem Querschnitt zur Hangend/First-Sicherung geeignet ist und sich durch seine Anpassungsfähigkeit an bereits gesetzte Gebirgsanker ebenso auszeichnet wie durch seine Anschmiegsamkeit an die Oberfläche im Hangend/First-Bereich.The invention is based on the technical problem to provide such Parallelgurtträger, which is suitable for use in routes with rectangular cross-section as well as for distances with arcuate cross-section to Hangend / First-fuse and is characterized by its adaptability to already set rock anchor as well as due to its conformability to the surface in the Hangend / First area.

Zur Lösung dieser Aufgabe schlägt die Erfindung bei einem gattungsgemäßen Parallelgurtträger vor, dass die Gurtstangen als Gewindestangen ausgebildet und die Verankerungsschlitten mittels ein- oder beidseitig der Rohrabschnitte angeordneter Gewindemuttern fixierbar sind.To solve this problem, the invention proposes in a generic Parallelgurtträger that the belt bars are designed as threaded rods and anchoring slides are fixed by means of one or both sides of the pipe sections arranged threaded nuts.

Der erfindungsgemäße Parallelgurtträger lässt sich für den Ausbau von Strecken mit rechtseckigem Querschnitt und folglich Türstock ebenso wie für den Ausbau von Strecken mit bogenförmigem Querschnitt partiell am Umfang und/oder in Streckenlängsrichtung einsetzen. Bevorzugt wird eine Hangend/Firste-Sicherung erreicht. Darüber hinaus ist der erfindungsgemäße Parallelgurtträger aber auch als Felsbruch-Sicherung im Gebirge, bei Böschungen oder im Straßenbau geeignet. Die endseitigen Verankerungsschlitten ermöglichen eine Anpassung des erfindungsgemäßen Parallelgurtträgers an bereits gesetzte Gebirgsanker und folglich dadurch vorgegebene Anker-Abstände. Darüber hinaus ist eine Verankerung aber auch nahezu an jeder Stelle innerhalb der Lieferlängen eines solchen Parallelgurtträgers möglich, wenn über die Länge der Gurtstangen mehrere Verankerungsschlitten angeordnet sind.The parallel belt according to the invention can be used for the expansion of routes with right-angled cross-section and thus door stick as well as for the expansion of routes with arcuate cross-section partially on the circumference and / or in the longitudinal direction. Preferably, a hang-up / firste backup is achieved. In addition, the parallel belt according to the invention but also as a rock-breakage protection in the mountains, on embankments or in road construction is suitable. The end anchoring carriages allow an adaptation of the parallel strap according to the invention to already set rock anchors and consequently predetermined anchor distances. In addition, an anchoring but also almost anywhere within the delivery lengths of such Parallelgurtträgers is possible if over the length of the belt bars several anchor carriages are arranged.

Der erfindungsgemäße Parallelgurtträger wird an seinen Enden im Bereich der dort vorhandenen Verankerungsschlitten auf bereits gesetzte Gebirgsanker eingefädelt und mit Anker-Muttern werden Zugkräfte in den Gurtstangen erzeugt, so dass sich eine polygonartige Beanspruchung nach Art eines Seilecks anstellt. Zwischen den Endankern, die bei Türstock-Ausbau funktionell schräg zur Längsachse des erfindungsgemäßen Parallelgurtträgers gesetzt werden, können zusätzlich je nach Bedarf über die Gurtlänge weitere Gebirgsanker in etwa gleichmäßigen Abständen eingebracht werden. Im Ergebnis erfüllt der erfindungsgemäße Parallelgurtträger gleichsam eine Hängemattenfunktion.The parallel strap according to the invention is threaded at its ends in the area of anchorage there existing anchors on already set rock anchors and anchor nuts tensile forces are generated in the belt bars, so that hangs a polygonal stress in the manner of a rope corner. Between the end anchors, which functionally inclined at doorstep removal Longitudinal axis of the parallel girder according to the invention can be set, in addition, depending on the needs of the belt length more rock anchors can be introduced at approximately equal intervals. As a result, the parallel belt carrier according to the invention, as it were, fulfills a hammock function.

Durch die Ausbildung der Gurtstangen als Gewindestangen, wobei die Verankerungsschlitten hieraus mittels beidseitig der Rohrabschnitte angeordneter Gewindemuttern fixierbar sind, lässt sich unschwer eine Feinabstimmung auf bereits gesetzte Gebirgsanker und folglich einwandfreie Ausrichtung des Parallelgurtträgers erreichen. Darüber hinaus besteht im Rahmen der Erfindung aber auch die Möglichkeit, gleichsam einen Endlos-Parallelgurtträger zur variablen Anpassung an die jeweiligen Ausbauverhältnisse zu verwirklichen. Das gelingt erfindungsgemäß durch eine Anschlusseinrichtung zur Verlängerung des Parallelgurtträgers, mit einer Verbindungslasche und beidseitig an der Verbindungslasche vier paarweise befestigten Rohrabschnitten, von denen jeweils zwei fluchtende Rohrabschnitte auf der einen und anderen Seite der Verbindungslasche zum Einsetzen von Gewindemuttern um ein vorgegebenes Maß voneinander distanziert sind, wobei das eine Rohrabschnittspaar auf die Gewindestangen des einen Parallelgurtträgers und das andere Rohrabschnittspaar auf die Gurtstangen eines anzuschließenden Parallelgurtträgers aufschiebbar und mittels auf die Gurtstangen einseitig oder beidseitig der Rohrabschnitte aufschraubbarer Gewindemuttern in ausgerichteter Position zug- und gegebenenfalls druckfest verspannbar sind. Bei zugfester Verspannung werden die Gewindemuttern nur einseitig der Rohrabschnitte, bei druckfester Verspannung beidseitig der Rohrabschnitte auf die Gurtstangen in Zug- und/oder Druckrichtung aufgeschraubt. Auf diese Weise lässt sich eine Mehrzahl von Parallelgurtträgern gleicher oder unterschiedlicher Länge kraftschlüssig miteinander verbinden. Dabei können die Verbindungslaschen unter Bildung einer Verankerungslasche eine oder mehrere Durchbrechungen aufweisen und sind folglich ebenfalls zum Anschluss an Gebirgsanker eingerichtet. Nach einer anderen Ausführungsform weist die Anschlusseinrichtung zur Verlängerung des Parallelgurtträgers zwei gekröpfte und zumindest im Bereich ihrer Kröpfung miteinander befestigte, zum Beispiel verschweißte Verbindungsstäbe auf, wobei beidseitig an den Verbindungsstäben in deren ungekröpften Bereichen vier paarweise befestigte Rohrabschnitte vorgesehen sind, von denen jeweils zwei fluchtende Rohrabschnitte an dem einen und dem anderen Verbindungsstab zum Einsetzen von Gewindemuttern um ein vorgegebenes Maß voneinander distanziert sind und wobei ferner das eine Rohrabschnittspaar wie bei der vorher beschriebenen Ausführungsform auf die Gewindestangen des einen Parallelgurtträgers und das andere Rohrabschnittspaar auf die Gurtstangen eines anzuschließenden Parallelgurtträgers aufschiebbar und mittels auf die Gurtstangen einseitig oder beidseitig der Rohrabschnitte aufschraubbarer Gewindemuttern in ausgerichteter Position zug- und gegebenenfalls druckfest verspannbar sind. In diesem Fall können die beiden Verbindungsstäbe an ihren ungekröpften Stabenden mittels Stabilisierungsstegen miteinander verbunden, zum Bespiel miteinander verschweißt sein.Due to the design of the belt rods as threaded rods, wherein the anchoring slide from here by means of both sides of the pipe sections arranged threaded nuts are fixable, can easily be fine tuned to already set rock anchors and consequently achieve perfect alignment of Parallelgurtträgers. In addition, within the scope of the invention, however, it is also possible, as it were, to realize an endless parallel belt carrier for variable adaptation to the respective disassembly conditions. This is achieved according to the invention by a connection device for extending the Parallelgurtträgers, with a connecting plate and on both sides of the connecting plate four paired pipe sections, of which two aligned pipe sections on the one and the other side of the connecting tab for inserting threaded nuts are spaced apart by a predetermined amount, wherein the one pair of pipe sections on the threaded rods of a parallel strap and the other pair of pipe sections on the belt bars of a Parallelbeam carrier to be pushed and by means of the belt bars on one side or both sides of the pipe sections screw-threaded nuts in aligned position zug- and optionally can be clamped pressure-resistant. In tensile stress the threaded nuts are screwed only on one side of the pipe sections, with pressure-resistant clamping on both sides of the pipe sections on the belt bars in the tensile and / or pressure direction. In this way, a plurality of Parallelgurtsträgern same or different lengths can be positively connected to each other. In this case, the connecting straps can have one or more apertures to form an anchoring tab and are therefore also set up for connection to rock anchors. According to another embodiment, the connection device for extending the Parallelgurtträgers two cranked and fastened together at least in the region of their crank, for example, welded connecting rods, being provided on both sides of the connecting rods in their un-cranked areas four paired pipe sections, of which two aligned pipe sections on the one and the other connecting rod for inserting threaded nuts by a predetermined amount are distanced from each other and further wherein the one pair of pipe sections as in the previously described embodiment on the threaded rods of a Parallelgurtträgers and the other pair of pipe sections on the belt bars of a parallelbeam to be connected pushed on and by the belt bars on one side or both sides of the pipe sections of screw-threaded nuts in the aligned position zug- and optionally pressure-resistant clamped si nd. In this case, the two connecting rods can be connected to each other at their non-cranked rod ends by means of stabilizing webs, for example welded together.

Zwischen der Kröpfung und den Verbindungsstäben sind Durchbrechungen zum Hindurchführen von Gebirgsankern verwirklicht. Im Rahmen der Erfindung besteht im Übrigen die Möglichkeit drei Parallelgurtträger zu einem Dreigurtträger oder vier Parallelgurtträger zu einem Viergurtträger sowie mehrere Parallelgurtträger zu einem Vieleckträger zusammenzusetzen. Ferner kann der erfindungsgemäße Parallelgurtträger aus Stahl oder Kunststoff bestehen. Im letzteren Fall wird man Glasfaser- oder Kohlenstofffaser verstärkten Kunststoff verwenden. Diese Ausführungsform 'ist auch für eine Kohlenstoß-Sicherung geeignet, weil eine derartige Kunststoff-Konstruktion unschwer von Gewinnungsmaschinen im Zuge des Hereingewinnens von Kohle überfahren und in Kleinteile zerschnitten werden kann, die sich in der Wäsche von der Kohle unschwer separieren lassen.Openings for the passage of rock anchors are realized between the offset and the connecting rods. In the context of the invention, moreover, it is possible to assemble three parallel belt carriers to form a three-belt carrier or four parallel belt carriers to form a four-belt carrier as well as a plurality of parallel belt carriers to form a polygon carrier. Furthermore, the parallel belt carrier according to the invention may consist of steel or plastic. In the latter case, one will use glass fiber or carbon fiber reinforced plastic. This embodiment 'is also suitable for a carbon bulletproofing because such a plastic construction can easily be run over by coal winning mining machines and cut into small pieces which are easily separated from the coal in the laundry.

Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Es zeigen:

Fig. 1
einen Parallelgurtträger in Draufsicht,
Fig. 2
den Gegenstand nach Fig. 1 als Kappe bei einem Türstock-Ausbau,
Fig. 3
einen vergrößerten Ausschnitt aus dem Gegenstand nach Fig. 1 im Bereich eines Verankerungsschlittens,
Fig. 4
den Gegenstand nach Fig. 3 in Ansicht aus Richtung des Pfeiles X,
Fig. 5
eine Anschlusseinrichtung für den Gegenstand nach Fig. 1 in Draufsicht,
Fig. 6
eine abgewandelte Ausführungsform des Gegenstandes nach Fig. 5 in Draufsicht und
Fig. 7
eine Montagefolge für den Gegenstand nach Fig. 6.
In the following the invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment. Show it:
Fig. 1
a Parallelgurtträger in plan view,
Fig. 2
the object after Fig. 1 as a cap on a door frame extension,
Fig. 3
an enlarged section of the object after Fig. 1 in the area of an anchor sled,
Fig. 4
the object after Fig. 3 in view from the direction of the arrow X,
Fig. 5
a connection device for the object after Fig. 1 in plan view,
Fig. 6
a modified embodiment of the article according to Fig. 5 in plan view and
Fig. 7
an assembly sequence for the object Fig. 6 ,

In den Figuren ist ein Parallelgurtträger 1 für insbesondere Streckenausbau und Tunnelausbau dargestellt, mit zwei parallelen Gurtstangen 2 und die Gurtstangen 2 verbindenden Querstäben 3, beispielsweise Diagonalstäben. Zumindest in den Trägerendbereichen sind Verankerungsschlitten 4 angeordnet, die jeweils eine Ankerplatte 5 mit beidseitigen Rohrabschnitten 6 aufweisen, wobei die Ankerplatten 5 jeweils zumindest eine Durchbrechung 7 bzw. Lochung zum Hindurchführen eines Gebirgsankers 8 aufweisen. Die Rohrabschnitte 6 sind auf die Gurtstangen 2 aufgeschoben und in ausgerichteter Schlittenposition fixierbar. Die Gurtstangen 2 sind als Gewindestangen ausgebildet. Die Verankerungsschlitten 4 sind mittels ein- oder beidseitig der Rohrabschnitte 6 angeordneter Gewindemuttern 9 fixierbar. Über die Länge der Gurtstangen 2 können mehrere Verankerungsschlitten 4 angeordnet sein, was nicht gezeigt und lediglich in Fig. 2 durch die Gebirgsanker 8 angedeutet ist.In the figures, a Parallelgurtträger 1 is shown in particular for track construction and tunnel construction, with two parallel belt bars 2 and the belt bars 2 connecting transverse bars 3, for example diagonal bars. At least in the Trägerendbereichen anchoring slide 4 are arranged, each having an anchor plate 5 with double-sided pipe sections 6, wherein the anchor plates 5 each have at least one opening 7 or holes for passing a rock anchor 8. The pipe sections 6 are pushed onto the belt rods 2 and fixed in aligned carriage position. The belt bars 2 are formed as threaded rods. The anchoring carriages 4 can be fixed by means of threaded nuts 9 arranged on one or both sides of the pipe sections 6. Over the length of the belt rods 2 more anchoring slide 4 may be arranged, which is not shown and only in Fig. 2 is indicated by the rock anchor 8.

Zur Verlängerung des Parallelgurtträgers 1 ist eine Anschlusseinrichtung 10 vorgesehen, die nach einer ersten Ausführungsform zwei gekröpfte und zumindest im Bereich ihrer Kröpfung 11 miteinander verschweißte Verbindungsstäbe 12 aufweist. Auf den Außenseiten der Verbindungsstäbe 12 sind in deren ungekröpften Bereichen vier paarweise befestigte Rohrabschnitte 6 vorgesehen, von denen jeweils zwei fluchtende Rohrabschnitte 6a, 6b an dem einen und an dem anderen Verbindungsstab 12 zum Einsetzen von Gewindemuttern 9 um ein vorgegebenes Maß voneinander distanziert sind, wobei das eine Rohrabschnittpaar 6a auf die Gurt- bzw. Gewindestangen 2 des einen Parallelträgers 1 und das andere Rohrabschnittpaar 6b auf die Gurt- bzw. Gewindestangen 2 eines anzuschließenden Parallelgurtträgers 1a aufschiebbar und mittels auf die Gurtstangen 2 einseitig oder beidseitig der Rohrabschnitte 6 aufschraubbarer Gewindemuttern 9 in ausgerichteter Position zug- und gegebenenfalls druckfest verspannbar sind. Die zugfeste Verspannung ist zeichnerisch dargestellt, die druckfeste Verspannung durch gestrichelte Gewindemuttern 9 angedeutet. Die beiden Verbindungsstäbe sind an ihren ungekröpften Stabenden mittels Stabilisierungsstegen 13 miteinander verschweißt. Dadurch sind zwischen den ungekröpften Stabenden Durchbrechungen 7a für Gebirgsanker 8 gebildet.To extend the Parallelgurtträgers 1 a connection device 10 is provided, which after a first Embodiment has two cranked and at least in the region of their crank 11 welded together connecting rods 12. On the outer sides of the connecting rods 12 four paired pipe sections 6 are provided in the un-cranked areas, of which two aligned pipe sections 6a, 6b are distanced to one another and to the other connecting rod 12 for insertion of threaded nuts 9 by a predetermined amount, wherein a pair of pipe sections 6a on the belt or threaded rods 2 of a parallel carrier 1 and the other pair of pipe sections 6b on the belt or threaded rods 2 a parallelbeam 1a to be connected slidable and by means of the belt bars 2 on one side or both sides of the pipe sections 6 screwed threaded nuts 9 in aligned position tensile and possibly compressive clamped. The tensile stress is shown in the drawing, the pressure-resistant clamping indicated by dashed nuts 9. The two connecting rods are welded together at their non-cranked rod ends by means of stabilizing webs 13. As a result, openings 7a for rock bolts 8 are formed between the unextended rod ends.

Bei einer anderen Ausführungsform weist die Anschlusseinrichtung 10 eine Verbindungslasche 14 und beidseitig an der Verbindungslasche 14 vier paarweise befestigte Rohrabschnitte 6a, 6b auf, von denen jeweils zwei fluchtende Rohrabschnitte 6a, 6b auf der einen und anderen Seite der Verbindungslasche 14 zum Einsetzen von Gewindemuttern 9 um ein vorgegebenes Maß voneinander distanziert sind. Auch in diesem Fall ist das eine Rohrabschnittpaar 6a auf die Gurtstangen 2 des einen Parallelgurtträgers 1 und das andere Rohrabschnittpaar 6b auf die Gurtstangen 2 eines anzuschließenden Parallelgurtträgers 1a aufschiebbar. Die Rohrabschnittpaare 6a, 6b und folglich die gesamte Anschlusseinrichtung 10 sind mittels auf die Gurtstangen 2 einseitig oder beidseitig der Rohrabschnitte 6 aufschraubbarer Gewindemuttern 9 in ausgerichteter Position verspannbar. Die Verbindungslasche 14 weist unter Bildung einer Verankerungslasche eine oder mehrere Durchbrechungen 7 auf.In another embodiment, the connecting device 10, a connecting plate 14 and on both sides of the connecting plate 14 four paired pipe sections 6a, 6b, of which two aligned pipe sections 6a, 6b on one and the other side of the connecting plate 14 for inserting threaded nuts 9 to a given measure are distanced from each other. Also in this case, that is one Pipe pair 6a on the belt bars 2 of a Parallelgurtträgers 1 and the other pair of pipe sections 6b on the belt bars 2 to be connected to a Parallelgurtträgers 1a pushed. The pairs of pipe sections 6a, 6b and consequently the entire connecting device 10 can be clamped in an aligned position by means of threaded nuts 9 which can be screwed on one or both sides of the pipe sections 6 on the belt bars 2. The connecting strap 14 has one or more apertures 7 to form an anchoring tab.

Der Parallelgurtträger 1 sowie die Anschlusseinrichtung 10 können aus Stahl oder Kunststoff bestehen.The Parallelgurtträger 1 and the connection device 10 may be made of steel or plastic.

Claims (9)

  1. Beam with parallel belt (1), in particular for the extension of underground galleries and tunnels, with two parallel wire rods (2) and transverse bars (3) that connect the wire rods (2), and with anchorage clamps (4) arranged at least in the beam end areas each with one anchorage plate (5) with bilateral pipe sections (6), wherein the anchorage plates (5) each have at least one aperture (7) for passing through a rock bolt (8) and the pipe sections (6) are pushed onto the wire rods (2) and are fixable in the aligned clamp position, characterised in that the wire rods (2) are designed as threaded rods and the anchorage clamps (4) are fixable by means of locknuts(9) arranged on one side or both sides of the pipe sections (6).
  2. Beam with parallel belt (1) according to claim 1, characterised in that several anchorage clamps (4) are arranged over the length of the wire rods (2).
  3. Beam with parallel belt (1) according to claim 1 or 2, characterised by a connection device (10) for extending the beam with parallel belt (1), with a connection plate (14) and four pipe sections (6) attached in pairs on both sides of the connection plate (14), of which two aligned pipe sections (6a, 6b) each are distant from one another, by a specified dimension, on the one and other side of the connection plate (14), for inserting locknuts (9), wherein the one pipe section pair (6a) can be pushed onto the wire rods (2) of the one beam with parallel belt (1) and the other pipe section pair (6b) can be pushed onto the wire rods (2) of a beam with parallel belt (1a) which is to be connected and can be tensioned by means of locknuts (9) which can be screwed onto the wire rods (2) on one side or both sides of the pipe sections (6).
  4. Beam with parallel belt according to claim 3, characterised in that the connection plate (14) has one or several apertures (7) while forming an anchorage plate.
  5. Beam with parallel belt according to one of the claims 1 to 4, characterised by a connection device (10) for extending the beam with parallel belt (1), with two connection bars (12) which are cranked and, at least in the area of their crank throw (11), are attached to each other, for example welded, and with four pipe sections (6) attached in pairs bilaterally to the connection bars (12) in their non-cranked areas, of which two aligned pipe sections (6a, 6b) each are distant from one another, by a specified dimension, at the one and the other connection bar (12), for inserting locknuts (9), wherein the one pipe section pair (6a) can be pushed onto the wire rods (2) of the one beam with parallel belt (1) and the other pipe section pair (6b) can be pushed onto the wire rods (2) of a beam with parallel belt (1a) which is be connected and can be tensioned by means of locknuts (9) which can be screwed onto the wire rods (2) on one side or both sides of the pipe sections (6).
  6. Beam with parallel belt according to claim 5, characterised in that the two connection bars (12) are connected with each other at their non-cranked rod ends by means of stabilising webs (13).
  7. Beam with parallel belt according to one of the claims 1 to 6, characterised in that three beams with parallel belt (1) can be put together to form a beam with three belts or four beams with parallel belt (1) can be put together to form a beam with four belts.
  8. Beam with parallel belt according to one of the claims 1 to 7, characterised by an embodiment in steel or plastic.
  9. Beam with parallel belt according to one of the claims 3 to 6, characterised in that the connection device (10) consists of steel and plastic.
EP04011896A 2003-08-07 2004-05-19 Beam with parallel belt, in particular for the extension of underground galleries and tunnels Expired - Lifetime EP1505253B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10336154A DE10336154B4 (en) 2003-08-07 2003-08-07 Parallel belt girder, especially for track extension and tunnel construction
DE10336154 2003-08-07

Publications (3)

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EP1505253A2 EP1505253A2 (en) 2005-02-09
EP1505253A3 EP1505253A3 (en) 2005-04-20
EP1505253B1 true EP1505253B1 (en) 2012-01-11

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EP (1) EP1505253B1 (en)
AT (1) ATE541111T1 (en)
AU (1) AU2004203023B2 (en)
CA (1) CA2473260C (en)
DE (1) DE10336154B4 (en)
PL (1) PL202381B1 (en)
ZA (1) ZA200405125B (en)

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CA2473260A1 (en) 2005-02-07
EP1505253A3 (en) 2005-04-20
AU2004203023A1 (en) 2005-02-24
DE10336154A1 (en) 2005-03-03
US6921232B2 (en) 2005-07-26
US20050031420A1 (en) 2005-02-10
PL202381B1 (en) 2009-06-30
PL369058A1 (en) 2005-02-21
AU2004203023B2 (en) 2009-07-23
DE10336154B4 (en) 2006-09-21
CA2473260C (en) 2008-02-26
ZA200405125B (en) 2005-05-25
ATE541111T1 (en) 2012-01-15
EP1505253A2 (en) 2005-02-09

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