WO2013176558A1 - Flexible roadway support frame - Google Patents

Flexible roadway support frame Download PDF

Info

Publication number
WO2013176558A1
WO2013176558A1 PCT/PL2012/000074 PL2012000074W WO2013176558A1 WO 2013176558 A1 WO2013176558 A1 WO 2013176558A1 PL 2012000074 W PL2012000074 W PL 2012000074W WO 2013176558 A1 WO2013176558 A1 WO 2013176558A1
Authority
WO
WIPO (PCT)
Prior art keywords
arches
support frame
roadway support
sidewall
flexible roadway
Prior art date
Application number
PCT/PL2012/000074
Other languages
French (fr)
Inventor
Zdzisław KOZA
Original Assignee
Zakłady Metalowe "Kozamex" Koza Zdzisław
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 Zakłady Metalowe "Kozamex" Koza Zdzisław filed Critical Zakłady Metalowe "Kozamex" Koza Zdzisław
Publication of WO2013176558A1 publication Critical patent/WO2013176558A1/en

Links

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 subject of the invention is the flexible roadway support frame to protect dog headings.
  • the flexible roadway support frame with a roof-bar arch and sidewall arches connected with each other by means of stirrups with overlap where the roof-bar arch has two bending curvature of which one is equal to the mating bending curvature of the sidewall arch, is known from Polish patent description no. 189601.
  • the flexible roadway support frame that has a spatial structure with increased own stability, made from brackets lying in different planes and connected with each other by means of a connector in the ceiling part releasably.
  • the brackets lie in three planes and, when viewed from above, form the letter "Y" whose base is a single bracket on one side of the ceiling connector while arms are formed by a doubled bracket on the other side of that connector.
  • the brackets can lie in convergent planes or parallel planes.
  • the doubled bracket can have a sidewall connector.
  • the connectors from double-yoke stirrups whose lower yokes are permanently connected with each other in their side parts by means of metal plates.
  • the design of the flexible roadway support frame according to this invention provides for the application of roof-bar arches and sidewall arches with a cut-out at the ends of the arches with a specified size at the distance(a), depth(c) and width(b) as in Fig. 2, in the shape of a rectangular, square or other according to the invention.
  • the cut-out must be such that its lateral planes line in the planes perpendicular to the longitudinal axis of such section.
  • the cut-out mates the driver of the lower double-yoke stirrup as a result of which it moves along with the arch.
  • Such solution ensures better mating of the arches moving in the joint by eliminating the chance that the stirrup might get jammed, which can result in the screw joint being destroyed.
  • the cut-out in the arches made according to the invention significantly simplifies the making of an upper yoke to the lower double- yoke stirrup and reduces its material consumption. That way we can easily determine the force of destruction of the driver, which is important in emergency situations.
  • the driver in upper yokes allows for operation on both sides, which is currently impossible.
  • the flexible roadway supporting frame Fig. 1 equipped with roof-bar arches(l) and sidewall arches(2) connected with each other by means of stirrups with overlap(3, 4, 5).
  • the arches have cut-outs on flanges located at the ends of those arches Fig 2.

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)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Emergency Lowering Means (AREA)

Abstract

The flexible roadway support frame Fig. 1 equipped with roof-bar arches(l) and sidewall arches (2) connected with each other by means of double-yoke stirrups with overlap (3, 4, 5) characterized in that each arch has a cut-out in the flanges located at the ends of those arches Fig 2.

Description

Flexible Roadway Support Frame
The subject of the invention is the flexible roadway support frame to protect dog headings.
The flexible roadway support frame with a roof-bar arch and sidewall arches connected with each other by means of stirrups with overlap where the roof-bar arch has two bending curvature of which one is equal to the mating bending curvature of the sidewall arch, is known from Polish patent description no. 189601.
According to Polish patent description no 192108 there is also the flexible roadway support frame that has a spatial structure with increased own stability, made from brackets lying in different planes and connected with each other by means of a connector in the ceiling part releasably. The brackets lie in three planes and, when viewed from above, form the letter "Y" whose base is a single bracket on one side of the ceiling connector while arms are formed by a doubled bracket on the other side of that connector. The brackets can lie in convergent planes or parallel planes. The doubled bracket can have a sidewall connector. The connectors from double-yoke stirrups whose lower yokes are permanently connected with each other in their side parts by means of metal plates.
As specified in Polish patent description no. 209561 there is also the roadway support frame made from channel sections and protected against damage due to sidewall loads. They have floor supporting elements in the form of portions of channel sections whose upper part is straight and attached from inside to the straight parts of the sidewall arches of the frame while its lower part is curved. Lower parts of the floor supporting elements are finished with supporting plates.
The design of the flexible roadway support frame according to this invention provides for the application of roof-bar arches and sidewall arches with a cut-out at the ends of the arches with a specified size at the distance(a), depth(c) and width(b) as in Fig. 2, in the shape of a rectangular, square or other according to the invention. The cut-out must be such that its lateral planes line in the planes perpendicular to the longitudinal axis of such section.
The cut-out mates the driver of the lower double-yoke stirrup as a result of which it moves along with the arch. Such solution ensures better mating of the arches moving in the joint by eliminating the chance that the stirrup might get jammed, which can result in the screw joint being destroyed. The cut-out in the arches made according to the invention significantly simplifies the making of an upper yoke to the lower double- yoke stirrup and reduces its material consumption. That way we can easily determine the force of destruction of the driver, which is important in emergency situations. The driver in upper yokes allows for operation on both sides, which is currently impossible.
The object of the invention is presented as an exemplary embodiment in figures 1 and 2.
The flexible roadway supporting frame Fig. 1 equipped with roof-bar arches(l) and sidewall arches(2) connected with each other by means of stirrups with overlap(3, 4, 5). The arches have cut-outs on flanges located at the ends of those arches Fig 2.

Claims

Patent Claim
The flexible roadway support frame Fig. 1 equipped with roof-bar arches(l) and sidewall arches(2) connected with each other by means of double-yoke stirrups with overlap (3, 4, 5) characterized in that each arch a has cut-out on the flanges located at the ends of those arches Fig 2.
PCT/PL2012/000074 2012-05-21 2012-08-27 Flexible roadway support frame WO2013176558A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PLP.399252 2012-05-21
PL399252A PL399252A1 (en) 2012-05-21 2012-05-21 Susceptible pavement housing doorposts

Publications (1)

Publication Number Publication Date
WO2013176558A1 true WO2013176558A1 (en) 2013-11-28

Family

ID=46968339

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/PL2012/000074 WO2013176558A1 (en) 2012-05-21 2012-08-27 Flexible roadway support frame

Country Status (2)

Country Link
PL (1) PL399252A1 (en)
WO (1) WO2013176558A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110145342A (en) * 2019-06-06 2019-08-20 河北省交通规划设计院 A kind of tunnel support device that stability is high

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1020589B (en) * 1956-03-09 1957-12-12 Bochumer Eisen Heintzmann Flexible connection for flanged gutter profiles in the same direction
GB795053A (en) * 1954-05-14 1958-05-14 Bergbaustahl Gmbh & Co Connecting device for lagging irons for mines
US3023862A (en) * 1958-11-03 1962-03-06 Applic Scient Mine roof supports
GB1011821A (en) * 1961-07-26 1965-12-01 Margot Von Linsingen Mine-roof yielding support joint
PL192108A1 (en) 1976-08-30 1978-03-13 Inst Maszyn Matematycznych PICTURE ELECTRON LAMP SCREEN
PL189601B1 (en) 1999-01-06 2005-08-31 Glowny Instytut Gornictwa Flexible frame timmbering set
PL209561B1 (en) 2006-11-13 2011-09-30 Głowny Isntytut Gornictwa Door frame of gangway enclosure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB795053A (en) * 1954-05-14 1958-05-14 Bergbaustahl Gmbh & Co Connecting device for lagging irons for mines
DE1020589B (en) * 1956-03-09 1957-12-12 Bochumer Eisen Heintzmann Flexible connection for flanged gutter profiles in the same direction
US3023862A (en) * 1958-11-03 1962-03-06 Applic Scient Mine roof supports
GB1011821A (en) * 1961-07-26 1965-12-01 Margot Von Linsingen Mine-roof yielding support joint
PL192108A1 (en) 1976-08-30 1978-03-13 Inst Maszyn Matematycznych PICTURE ELECTRON LAMP SCREEN
PL189601B1 (en) 1999-01-06 2005-08-31 Glowny Instytut Gornictwa Flexible frame timmbering set
PL209561B1 (en) 2006-11-13 2011-09-30 Głowny Isntytut Gornictwa Door frame of gangway enclosure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110145342A (en) * 2019-06-06 2019-08-20 河北省交通规划设计院 A kind of tunnel support device that stability is high

Also Published As

Publication number Publication date
PL399252A1 (en) 2013-11-25

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