EP2248995B1 - Klemmverbindung - Google Patents

Klemmverbindung Download PDF

Info

Publication number
EP2248995B1
EP2248995B1 EP10004197.9A EP10004197A EP2248995B1 EP 2248995 B1 EP2248995 B1 EP 2248995B1 EP 10004197 A EP10004197 A EP 10004197A EP 2248995 B1 EP2248995 B1 EP 2248995B1
Authority
EP
European Patent Office
Prior art keywords
flanges
clamping
clamping connection
profile
connection according
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
EP10004197.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2248995A2 (de
EP2248995A3 (de
Inventor
Rudi Podjadtke
Rüdiger Oostenryck
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.)
Bochumer Eisenhuette Heintzmann GmbH and Co KG
Original Assignee
Bochumer Eisenhuette Heintzmann GmbH and Co KG
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 Bochumer Eisenhuette Heintzmann GmbH and Co KG filed Critical Bochumer Eisenhuette Heintzmann GmbH and Co KG
Priority to PL10004197T priority Critical patent/PL2248995T3/pl
Publication of EP2248995A2 publication Critical patent/EP2248995A2/de
Publication of EP2248995A3 publication Critical patent/EP2248995A3/de
Application granted granted Critical
Publication of EP2248995B1 publication Critical patent/EP2248995B1/de
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
    • E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
    • E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure

Definitions

  • the invention relates to a clamping connection for overlapping nested U-shaped, lateral ears having profile segments of the yielding underground construction according to the features in the preamble of claim 1.
  • a clamp connection is made DE 202 00 964U1 known.
  • the profile segments each have two curved legs, a web connecting the legs and two arranged at the ends remote from the web of the legs, sideways directed flanges, which are also called ears because of their shape. In the overlapping region of two successive profile segments, these are nested, wherein the ears of the encompassing profile segment are supported in the grooves of the inset profile segment, which are formed there on the ears.
  • the clamping of the profile segments in the overlapping area is carried out by means of at least two clamping connections, each clamping connection composed of a top flap with lateral straight Ein rehabilitationflanschen, a bottom flap with lateral straight clamping flanges and recesses in the Ein psychologyflanschen and clamping flanges by passing bolts and nuts on the screw rotatable nuts.
  • bottom flap is largely U-shaped and adjacent to the side clamping flanges leg and a leg connecting web, wherein in the transition region of the clamping flanges on the legs Stitzwulste are provided, which are supported in throats of the ears of the encompassing profile segment, there is the top flap from a middle longitudinal section with a retracted straight central region as well as at this longitudinal section end subsequent straight Ein rehabilitationflanschen.
  • the bolts are inserted with their correspondingly adapted heads in these Ein rehabilitationflansche and enforce their shanks recesses in the Ein distrlanschen and in the clamping flanges of the bottom flap.
  • the top flap should be effective as a carrier supported on two supports, which is deformed under the influence of the screw forces.
  • the operational deformation of the carrier as a tab can be followed by the change in shape of the neutral thread.
  • the frictional resistance between the overlapping nested profile segments is partially generated via defined and partially over-defined pressure surfaces from the normal force of the bolts.
  • a pressure is to be generated via the contact areas of the upper flap with the ears of the inserted profile segment, the higher To ensure insertion resistance of the profile segments in the event of rock load occurring.
  • this insertion resistance must be considered as a function of the tolerances of the profile segments and also their widths - measured over the outer sides of the ears. It is only really effective if the transitional areas of the upper flap and the ears of the inserted profile segment are in perfect contact. Due to various processing steps, such as tempering, bending the profiled segments cut to length of, for example, 8 m, the width of the profile segments can vary within certain limits. This has the consequence that a clamping connection with a top flap and bottom flap so far may have a defect that the transition areas between the central longitudinal section of a top flap and the Einitatiflanschen come into proper contact with the outer surfaces of the ears, so that the insertion resistance is not with the desired security can be determined.
  • the invention has for its object to provide a clamping connection for U-shaped profile segments of the yielding underground construction, in which the certain of the upper flap insertion resistance can also be guaranteed if the widths of the profile segments differ significantly from the nominal size.
  • the top flap is now between the targeted hook-shaped curved lateral Ein rehabilitationflanschen a retracted, rectilinearly extending central longitudinal section and between the central longitudinal section and the Ein concerningflanschen to the Einberichtflanschen oppositely curved, the ears on the inner profile segment surface comprehensive comprehensive locking portions with concave inner surfaces and convex outer surfaces.
  • These latching sections comprise with their inner surfaces the ears of the inserted profile segment.
  • either the mutually facing inner surfaces of the latching sections now lie on the outer surface regions of the ears or the inner surfaces of the latching sections facing away from one another are located on the mutually facing surface regions of the ears.
  • the insertion resistance is further improved by the fact that the middle straight portion of the upper flap is retracted by about the thickness of the upper flap.
  • pockets may be formed at the bottom of the concave inner surfaces of the locking portions. The pockets ensure proper contact of the outer surfaces of the ears of the embedded profile segment on the concave inner surfaces of the locking portions.
  • the transverse to the upper flap pockets may have oval contours.
  • the convex outer surfaces of the latching sections are provided with frontal chamfers.
  • the Stauerwulste are provided with central recesses. In this way, they are next to the recesses lying areas of Stauerwulste properly in the throats of the ears of the encompassing profile segment.
  • FIG. 1 is a longitudinal section of a compliant underground arched construction 1 shown, which can be used in mining or tunneling.
  • the expansion 1 consists of several identically shaped profile segments 2, 3. In each case two in the circumferential direction UR of the expansion 1 successive profile segments 2, 3 are shown in the FIGS. 1 and 2 nested and in the overlapping area B with the help of two clamped connections 4 arranged at a distance from one another are clamped together so that, when exposed to rock loads, the profile segments 2, 3 which are braced with one another can displace relative to one another to a limited extent, with a shortening of the expansion 1 in the circumferential direction UR.
  • the profile segments 2, 3 are identical and each have a U-shaped cross-section, which consists of two curved legs 5, a leg connecting the web 5 6 and two arranged on the web 6 remote from the ends of the legs 5 arranged ears 7.
  • the ears 7 are directed sideways outward and have a web 6 facing away from the convex surface area 8 and a web 6 facing the concave area in the form of a throat 9.
  • FIG. 2 shows that the nested profile segments 2, 3 are supported against each other such that the convex outer surfaces 8 of the ears 7 of the encompassing profile segment 2 lie in the grooves 9 of the ears 7 of the inner profile segment 3.
  • the clamping connections 4 for the nested profile segments 2, 3 each consist of an ears 7 of the engaging profile segment 3 cross-top flap 10, a encompassing profile segment 2 embracing lower flap 11 and two lateral bolts 12 and nuts 13th
  • resulting upper flap 10 has a straight central longitudinal section 14, two adjoining this longitudinal section 14 arcuately curved latching portions 15 and two lateral hook-shaped Einitatiflansche 16.
  • the locking portions 15 are curved in opposite directions to the Einitatiflanschen 16. It's the FIG. 4 it can be seen that the central longitudinal section 14 is pulled in by approximately the thickness D of the upper flap 10 in the direction of a plane E - E which tangentially affects the convex surfaces 17 of the suspension flanges 16.
  • the convex outer surfaces 20 of the locking portions 15 are provided with frontal bevels 21 ( FIGS. 4 to 6 ).
  • the bolts have 12 heads 22 which are the contours of the Einschlansche 16 contour-matched and with their shanks 23 recesses 24 in the Ein vonschen 16 and recesses 25 in clamping flanges 26 of the lower flaps 11 (see also FIGS. 7 and 8 ) push through.
  • the lower flaps 11 of the clamp connections 4 are U-shaped ( Figures 2 . 3 . 7 and 8 ) and have at the transitions from the lateral straight clamping flanges 26 on curved, connected by a web 27 leg 28 Stauerwulste 29, which are facing the upper flap 10. These Stauerwulste 29 hold in the grooves 9 of the encompassing profile segment. 2
  • FIGS. 7 and 8 show FIGS. 7 and 8 in that recesses 30 are provided centrally of these support beads 29, so that the support beads 29 lie only with the end portions in the grooves 9.
  • Get profile segments 2, 3 with a larger profile width PB used, as in the FIG. 2 is shown, it can be seen that when tightening the bolt 12 by means of nuts 13 an additional frictional resistance between the upper flap 10 and the ears 7 of the engaging profile segment 3 is constructed by the fact that the mutually facing portions of the inner concave surfaces 18 of the locking portions 15 at the opposite surface portions of the ears 7 according to the arrows PF come to rest.
  • the embodiment corresponds to FIG. 3 that of the FIG. 2 , so that can be dispensed with a repeated explanation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Clamps And Clips (AREA)
EP10004197.9A 2009-05-08 2010-04-20 Klemmverbindung Not-in-force EP2248995B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10004197T PL2248995T3 (pl) 2009-05-08 2010-04-20 Połączenie zaciskowe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202009006707U DE202009006707U1 (de) 2009-05-08 2009-05-08 Klemmverbindung für U-förmige Profilsegmente

Publications (3)

Publication Number Publication Date
EP2248995A2 EP2248995A2 (de) 2010-11-10
EP2248995A3 EP2248995A3 (de) 2013-02-27
EP2248995B1 true EP2248995B1 (de) 2014-10-22

Family

ID=40874470

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10004197.9A Not-in-force EP2248995B1 (de) 2009-05-08 2010-04-20 Klemmverbindung

Country Status (4)

Country Link
EP (1) EP2248995B1 (pl)
DE (1) DE202009006707U1 (pl)
ES (1) ES2526121T3 (pl)
PL (1) PL2248995T3 (pl)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3245599A1 (de) * 1982-12-09 1984-06-14 Stahlausbau Gmbh, 4650 Gelsenkirchen Verbindung fuer gleitbogenausbau
DE4104798A1 (de) 1991-02-16 1993-07-29 Lenin Kohaszati Muvek Element zur sicherung eines unterirdischen hohlraums, insbesondere bei grubenraeumen, sowie konstruktion zur verbindung der sicherungselemente
DE20200964U1 (de) * 2002-01-24 2002-05-29 Bochumer Eisenhütte Heintzmann GmbH & Co. KG, 44793 Bochum Bogenausbau für Strecken und Tunnel, insbesondere für Abbaustrecken in bergbaulchen Untertagebetrieben

Also Published As

Publication number Publication date
DE202009006707U1 (de) 2009-07-16
EP2248995A2 (de) 2010-11-10
ES2526121T3 (es) 2015-01-07
PL2248995T3 (pl) 2015-04-30
EP2248995A3 (de) 2013-02-27

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