EP1921251B1 - Dispositif destiné au raccordement réciproque des extrémités longitudinales d'au moins deux poutres en treillis construites dans un tunnel - Google Patents

Dispositif destiné au raccordement réciproque des extrémités longitudinales d'au moins deux poutres en treillis construites dans un tunnel Download PDF

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Publication number
EP1921251B1
EP1921251B1 EP07009178A EP07009178A EP1921251B1 EP 1921251 B1 EP1921251 B1 EP 1921251B1 EP 07009178 A EP07009178 A EP 07009178A EP 07009178 A EP07009178 A EP 07009178A EP 1921251 B1 EP1921251 B1 EP 1921251B1
Authority
EP
European Patent Office
Prior art keywords
lattice
plates
lattice girders
girders
girder
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.)
Not-in-force
Application number
EP07009178A
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German (de)
English (en)
Other versions
EP1921251A1 (fr
Inventor
Benjamin Dr.-Ing. Geller
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.)
Tunnel-Ausbau-Technik GmbH
Original Assignee
Tunnel-Ausbau-Technik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tunnel-Ausbau-Technik GmbH filed Critical Tunnel-Ausbau-Technik GmbH
Publication of EP1921251A1 publication Critical patent/EP1921251A1/fr
Application granted granted Critical
Publication of EP1921251B1 publication Critical patent/EP1921251B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • E21D11/14—Lining predominantly with metal
    • E21D11/28—Longitudinal struts, i.e. longitudinal connections between adjoining arches
    • 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
    • E21D11/14—Lining predominantly with metal
    • E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
    • E21D11/152—Laggings made of grids or nettings
    • 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
    • E21D11/14—Lining predominantly with metal
    • E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
    • E21D11/20—Special cross- sections, e.g. corrugated

Definitions

  • the invention relates to a device for mutually connecting the longitudinal ends of at least two lattice girders used in tunneling.
  • connection angle at the longitudinal ends of two lattice girders to be connected and to screw together the connection angle of adjacent longitudinal ends of the lattice girders.
  • Such a longitudinal connection of lattice girders represents a so-called angle steel connection.
  • the connection angles are in the installed state of the lattice girder used in tunneling neither on the so-called mountain side of the lattice girder nor on the tunnel interior forming air side of the lattice girder.
  • lattice girders are formed curved in tunnels according to the Deckenwölbung.
  • the lattice girders When installed, the lattice girders are exposed on their underside pointing to the air side elevated tensile stresses, which can not or only barely recorded and transmitted in the connecting region of two adjoining lattice girder by means of the previous angle steel connection.
  • a device for interconnecting the longitudinal ends of lattice girders in which the two longitudinally extending side by side and spaced apart strap bars are arranged on the mountain side.
  • two plates are welded on both sides to each longitudinal end for connecting the two longitudinal ends.
  • the two plates connect each of the mountain side facing away and therefore the air side facing belt bar with one of the two of the mountain side facing chord members.
  • a V-shaped bent connecting element is pushed from below onto the ends of the two adjacent longitudinal ends of the lattice girder and screwed to the plates.
  • a device for mutually connecting the longitudinal ends of at least two lattice girders used in tunnel construction according to the preamble of claim 1 is known from DE 37 22 609 C1 known.
  • the invention has for its object to provide a device of the type mentioned, by means of which a connection of the lattice girder with optimal power transmission is possible.
  • each lattice girder comprises at least two longitudinally extending side by side and spaced apart chord members, wherein the lattice girders each have on their mountain side opposite air side at least two chord members and wherein at the longitudinal end between the at least two chord members in each case a plate is fixed and with the plates arranged close to each other longitudinal ends of each at least two strap bars a plate bridging and thereby the at least two lattice girders interconnecting pull tab is firmly connected.
  • connection angles on the air side facing the mountain side of the lattice girders would have the disadvantage that certain components protrude over a permissible level in the tunnel interior, so that ultimately the tunnel diameter would be increased by the respective measure.
  • the inventive proposal from plates and pull tab claimed extremely little space and at the same time is able to effectively absorb tensile stresses and thus dissipate.
  • the lattice girders each have the at least two girdle bars on their air side opposite the mountain side.
  • the power transmission, as far as the air side directed to the underside of each lattice girder is further optimized.
  • the invention for connecting two lattice girders only one device according to the invention is provided in each case, as a result of which the production costs can be kept within narrow limits.
  • the longitudinal ends of the lattice girders are arranged opposite one another. This has the advantage that two mutually substantially aligned lattice girder in a simple and thus cost-effective and space-saving manner are connected to each other.
  • each plate is welded to the chord members of their lattice girder, wherein preferably the outside of each plate is within the contour of its lattice girder.
  • the mentioned welds are dimensioned so that a failure is avoided even in high deformation state.
  • the entire device is thus able to absorb high forces and stresses and withstand high stress.
  • the attachment of each plate within the contour of its lattice girder represents an extremely space-saving possibility, without the plates thus protrude into the tunnel interior, namely, because a space is used for the attachment of the plates, which is available as an interior space between the chord members anyway. This makes it possible to provide the inventive device extremely compact and space-saving.
  • the pull tab is placed on the outside of the plates of the lattice girder to be joined together and detachably connected to the plates, preferably screwed.
  • Such a mutual connection of the lattice girders is therefore simple and time-saving to carry out and can therefore be accomplished without problems even by untrained personnel.
  • the connection of pull tab and plates is designed especially for absorbing tensile forces and therefore able to absorb tensile stresses effectively. This creates on the one hand a safe, on the other hand, a cost-effective way to effectively transfer the forces, stresses and loads occurring in tunneling from one lattice girder to the other lattice girder, thereby enabling safe and permanent tunneling.
  • At least a part of the cross section of the pull tab is also arranged within the contour of the lattice girders.
  • a device 1 for mutually connecting the longitudinal ends 2, 3 of at least two lattice girders 4, 5 used in tunnel construction is schematically partially cut in accordance with a first embodiment Fig. 1 shown.
  • Each lattice girder 4, 5 has a plurality of longitudinally extending chord members 6 to 9.
  • lattice girder 4, 5 on its upper side, which is directed in the installed state of the lattice girder to the so-called mountain side 10, a Gurtstab 6 and on its mountain side 10 opposite bottom, also called air side 11, at least two extending side by side and from each other spaced strap bars 8 and 9.
  • the lattice girder according to the in Fig. 1 has three strap bars 6, 8, 9, wherein the strap bar 6 is formed as a single rod, which is usually, as mentioned above, arranged on the mountain side.
  • the in Fig. 1 shown lattice girder two strap bars 8, 9, as has been previously explained.
  • Each lattice girder 4, 5 has on its side opposite the mountain side 10 air side 11 at least two strap rods 8, 9. It is also possible to arrange the strap bar 6 on the air side 11 and the two strap bars 8, 9 on the mountain side 10.
  • two devices according to the invention namely one on each side of the lattice girder between the chord members 6 and 8 and between the chord members 6 and 9, are usually provided.
  • the latter embodiment can also be used when the belt bar 6 as in Fig. 1 on the mountain side 10 and the belt bars 8, 9 are arranged on the air side 11.
  • the belt bars 6 to 9 are fixedly connected to each other by means of stiffening elements 12, wherein the stiffening elements 12 at the in Fig. 2 shown embodiment of the lattice girders 4, 5 form a central node 13.
  • the stiffening elements 12 are firmly connected to individual belt bars 6 to 9, preferably welded.
  • the stiffening elements 12 have been specially developed for the existing high demands in tunneling and have a high strength, a large deformation capacity and a very good weldability. They have as well as the strap bars 6 to 9, preferably a circular cross-section.
  • a plate 14, 15 is attached to the longitudinal end 2, 3 of each lattice girder 4, 5 between the at least two girder bars 8, 9.
  • a pull tab 16 is fixedly connected to the plates 14, 15 of the longitudinal ends 2, 3 of the respectively adjacent at least two strap bars 8, 9.
  • the pull tab bridges the plates 14, 15 and thereby connects the at least two lattice girders 4, 5 with each other.
  • the plates 14, 15 and the pull tab 16 are about the same thickness.
  • Fig. 4 indicates that the total length of the pull tab 16 corresponds approximately to the total length of the two plates 14, 15.
  • each plate 14, 15 is about half as long as the pull tab 16th
  • the device 1 according to the invention for mutually connecting two juxtaposed lattice girders.
  • Fig. 3 only the longitudinal ends 2, 3 of the lattice girders 4, 5 are shown.
  • the lattice girder 4 in Fig. 3 in the direction of its longitudinal axis to the left and the lattice girder 5 in the right half of Fig. 3 extending in the direction of its longitudinal axis to the right.
  • Each plate 14, 15 is fixedly connected to the belt bars 8, 9 of its lattice girder 4, 5, preferably welded. As in the Fig. 1 to 4 indicated, the outside is 17, 18 of each plate 14, 15 within the contour 20 of its lattice girder 4, 5.
  • the contour 20 of the lattice girder 4, 5 is only in Fig. 2 indicated by dashed lines. In the contour 20 is the outer contour of the lattice girder in question.
  • the pull tab 16 is placed on the outer side 17, 18 of the plates 14, 15 of the lattice girders 4, 5 to be connected to each other and releasably connected to the plates 14, 15, preferably screwed.
  • the required fasteners 21 are in the Fig. 1, 2 and 4 dash-dotted lines indicated.
  • At least a portion of the cross section 22 of the pull tab 16 is also disposed within the contour 20 of the lattice girders 4, 5.
  • connection angle 23, 24 which are fixedly connected laterally with the chord members, possibly also with the stiffening elements.
  • Each connection angle 23, 24 has two legs 25, 26; 27, 28, wherein the one leg 25, 27 respectively fixedly connected to the lattice girder 4, 5, preferably welded, and the other leg 26, 28 each laterally from the lattice girder 4, 5 protrudes, as shown in the Fig. 1 and 2 best clarified and in the 3 and 4 is indicated.
  • connection angle 23, 24 has two legs 25, 26; 27, 28, wherein the one leg 25, 27 respectively fixedly connected to the lattice girder 4, 5, preferably welded, and the other leg 26, 28 each laterally from the lattice girder 4, 5 protrudes, as shown in the Fig. 1 and 2 best clarified and in the 3 and 4 is indicated.
  • the laterally projecting legs 26, 28 are adjacent to each other and can preferably be releasably connected to each other via fastening means not shown in detail.
  • the fastening means are for example LOenMutter connections. It should be noted that the device according to the invention is fully functional and usable even without the above-described connection angle. According to a particularly preferred embodiment, however, the longitudinal ends 2, 3 of the lattice girders 4, 5 are connected to one another both via the plates 14, 15 and the pull tab 16 as well as via the connection angles 23, 24.
  • said lattice girders are fully integrated into a shotcrete shell. It is pointed out, however, that investigations of the lattice girders mentioned confirm a high stability and a high buoyancy even in the uninjected state.
  • the lattice girders mentioned have a good injection behavior and are preferably integrated into the composite with the shotcrete shell. They are preferably designed so that radial anchor can also be set through a grid arch into the mountains. So-called skewers can be drilled both above the lattice girder and through the lattice girder.
  • the lattice girders meet the high accuracy requirements of the site. They ensure that the shotcrete is applied within narrow tolerance limits.
  • a major advantage of the lattice girders is that they are easy to handle during installation. It is clear that the lattice girders, which are used in tunneling, are usually curved. Reduce the spatial stiffening elements 12 The local buckling lengths of the strap bars and ensure in addition to a high normal and bending moment load a secure transmission of the shear forces even in the uninjected state. The welded joints of the stiffening elements 11 to the belt bars 6 to 9, also called edge bars are dimensioned so that a failure is avoided even in high deformation state.
  • the device according to the invention can be provided on one or both sides of the or each lattice girder between the chord members 6 and 8 and / or between the chord members 7 and 9.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Architecture (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Bridges Or Land Bridges (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Supports For Pipes And Cables (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)

Claims (6)

  1. Système destiné au raccordement mutuel des extrémités longitudinales (2, 3) d'au moins deux poutres en treillis (4, 5) employées dans la construction de tunnels,
    lesdites poutres en treillis (4, 5) comprenant chacune au moins deux barreaux de ceinture (8, 9) qui s'étendent en direction longitudinale l'un à côté de l'autre et sont écartés l'un de l'autre, lesdits au moins deux barreaux de ceinture (8, 9) des poutres en treillis (4, 5) étant agencés sur le côté libre (11) à l'opposé du côté tourné vers la roche (10),
    caractérisé en ce que
    une plaque respective (14, 15) est fixée à l'extrémité longitudinale (2, 3) des poutres en treillis (4, 5) entre lesdits au moins deux barreaux de ceinture (8, 9), et
    une patte de traction (16), qui fait un pontage entre les plaques (14, 15) et relie ainsi l'une à l'autre lesdites au moins deux poutres en treillis (4, 5), est reliée fermement aux plaques (14, 15) des extrémités longitudinales (2, 3), agencées proches l'une de l'autre, desdits au moins deux barreaux de ceinture (8, 9).
  2. Système selon la revendication 1, caractérisé en ce que les extrémités longitudinales (2, 3) des poutres en treillis (4, 5) sont agencées à l'opposé les unes des autres.
  3. Système selon la revendication 1 ou 2, caractérisé en ce que chaque plaque (14, 15) est soudée avec les barreaux de ceinture (8, 9) de sa poutre en treillis (4, 5).
  4. Système selon l'une des revendications précédentes, caractérisé en ce que la face extérieure (17, 18) de chaque plaque (14, 15) est située à l'intérieur du contour (20) de sa poutre en treillis (4, 5).
  5. Système selon l'une des revendications précédentes, caractérisé en ce que la patte de traction (16) est posé sur la face extérieure (17, 18) des plaques (14, 15) des poutres en treillis (4, 5) à relier mutuellement, et est reliée de façon détachable avec les plaques (14, 15), de préférence vissée.
  6. Système selon l'une des revendications précédentes, caractérisé en ce qu'au moins une partie de la section transversale (22) de la patte de traction (16) est agencée à l'intérieur du contour (20) de la poutre en treillis (4, 5).
EP07009178A 2006-11-08 2007-05-07 Dispositif destiné au raccordement réciproque des extrémités longitudinales d'au moins deux poutres en treillis construites dans un tunnel Not-in-force EP1921251B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202006017048U DE202006017048U1 (de) 2006-11-08 2006-11-08 Einrichtung zum gegenseitigen Verbinden der Längsenden wenigstens zweier im Tunnelbau eingesetzter Gitterträger

Publications (2)

Publication Number Publication Date
EP1921251A1 EP1921251A1 (fr) 2008-05-14
EP1921251B1 true EP1921251B1 (fr) 2009-08-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07009178A Not-in-force EP1921251B1 (fr) 2006-11-08 2007-05-07 Dispositif destiné au raccordement réciproque des extrémités longitudinales d'au moins deux poutres en treillis construites dans un tunnel

Country Status (3)

Country Link
EP (1) EP1921251B1 (fr)
AT (1) ATE439504T1 (fr)
DE (2) DE202006017048U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014002499U1 (de) 2014-03-20 2014-04-17 Tunnel-Ausbau-Technik Gmbh Gitterträger

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007012138B3 (de) * 2007-03-12 2008-09-18 Bochumer Eisenhütte Heintzmann GmbH & Co. KG Vorrichtung zur Herstellung eines bogenförmigen Gitterträgers
KR101994071B1 (ko) * 2019-02-28 2019-06-27 한미란 고강도 격자지보

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1237160B (de) * 1964-06-18 1967-03-23 Rheinstahl Gmbh Wanheim Stossverbindung zwischen Fachwerktraegern, die als Bewehrung einer Tunnelauskleidungaus Beton dienen
AT362739B (de) * 1978-12-27 1981-06-10 Evg Entwicklung Verwert Ges Ausbaurahmen fuer stollen, tunnel od.dgl.
DE8125375U1 (de) 1981-09-01 1982-01-21 Pantex-Stahl AG, 6233 Büron Gittertraeger fuer den untertag-strecken- und schachtausbau
DE3304843C1 (de) * 1983-02-12 1984-06-28 Tunnel Ausbau Technik GmbH, 8036 Herrsching Als Gittertraeger ausgebildeter Kalottenfussbalken
DE3722609C1 (de) 1987-07-09 1988-08-18 Tunnel Ausbau Technik Gmbh Ausbaubogen fuer den Tunnelbau
DE3810563C1 (en) * 1988-03-29 1989-10-12 Michel Baubedarf Gmbh, 7123 Sachsenheim, De Channel-section support
DE19704019A1 (de) * 1996-02-08 1997-12-18 Frank Zurheide Trägerelement für den Stahlhochbau

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014002499U1 (de) 2014-03-20 2014-04-17 Tunnel-Ausbau-Technik Gmbh Gitterträger
EP2924189A2 (fr) 2014-03-20 2015-09-30 Tunnel-Ausbau-Technik GmbH Support de grille

Also Published As

Publication number Publication date
ATE439504T1 (de) 2009-08-15
DE202006017048U1 (de) 2007-01-04
DE502007001283D1 (de) 2009-09-24
EP1921251A1 (fr) 2008-05-14

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