EP0578713B1 - Gliederanker - Google Patents

Gliederanker Download PDF

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Publication number
EP0578713B1
EP0578713B1 EP92908139A EP92908139A EP0578713B1 EP 0578713 B1 EP0578713 B1 EP 0578713B1 EP 92908139 A EP92908139 A EP 92908139A EP 92908139 A EP92908139 A EP 92908139A EP 0578713 B1 EP0578713 B1 EP 0578713B1
Authority
EP
European Patent Office
Prior art keywords
rope
anchor bolt
sections
cable
bolt
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
EP92908139A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0578713A1 (de
Inventor
Peter Stephan
Gerhard Klausen
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.)
Bergwerksverband GmbH
Original Assignee
Bergwerksverband 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 Bergwerksverband GmbH filed Critical Bergwerksverband GmbH
Publication of EP0578713A1 publication Critical patent/EP0578713A1/de
Application granted granted Critical
Publication of EP0578713B1 publication Critical patent/EP0578713B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/0046—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts formed by a plurality of elements arranged longitudinally
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/006—Anchoring-bolts made of cables or wires

Definitions

  • the invention relates to a link anchor which consists of anchoring sections arranged one behind the other and connected to one another by means of cable joints, which has a pressing sleeve at one end and an anchoring section which is designed as a pressing part and is provided with an assembly thread and is fully mortarable over its installation length.
  • the generic link anchor is a test object from French mining.
  • Such a link anchor has been developed in particular for use in such boreholes in which continuous anchor rods could not be inserted due to space constraints.
  • the rod-shaped anchor sections which have taken up rope sections designed as rope joints in bores in pressed form, it has proven to be very disadvantageous that the low elasticity and thus the low workability until breakage are not suitable for all applications .
  • DE-A 39 22 906 describes a non-mortarable mountain cable anchor in which the cable is mechanically braced in a sheathing tube made of rigid, interlocking segments that protect the cable from transverse forces.
  • the object of the present invention based on the generic link anchor that can be mortared over the entire length, is to create a link anchor which has both sufficient elasticity and a corresponding ability to work.
  • the link anchor according to the invention is given a comparatively large load path under approximately constant load conditions by the resilience element in the deepest borehole before, after the resilience has been exhausted, a load up to the breaking strength of the rope takes place. It can therefore also be used in mountain conditions that lead to a stronger loosening of the mountains around a cavity.
  • an example of a preferred embodiment of a flexible, flexible link anchor 10 according to the invention is shown in a longitudinal section. It consists in the example of a steel cable 1, the between cable joints 2 with cladding tube sections 3, 11, 14, z. B. is surrounded by steel.
  • the cladding tube sections 3, 11, 14 are fixed at certain intervals on the steel cable 1 by cold deformation embossing 4.
  • the steel cable 1 is in a pressing part 6 of the cladding tube section 14 at the other end of the cable at the hole end pressed, which also carries the full breaking force, and which is provided with a mounting thread 7 for mounting an anchor plate 12 by means of a nut 13.
  • a compliance path 8 is provided, which with an easily destructible tubular body 9, for. B. made of plastic or thin sheet metal is covered.
  • the link anchor according to the invention is fastened as intended by introducing mortar into the spaces between the borehole wall and the link anchor.
  • the operation of the link anchor 10 according to the invention is as follows: When opening fracture areas or shear movements in the mountain body after being introduced into a borehole, the link anchor 10 initially takes up load until the friction between the fixed cladding tube sections 3, 11, 14 and the steel cable 1 is overcome . Then the compliance path 8 is exhausted until the compression sleeve 5 comes to rest on the uppermost cladding tube section 11. Then the link anchor 10 is loaded up to the breaking strength of the steel cable 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)
  • Joining Of Building Structures In Genera (AREA)
EP92908139A 1991-04-12 1992-04-03 Gliederanker Expired - Lifetime EP0578713B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4112096A DE4112096C1 (enExample) 1991-04-12 1991-04-12
DE4112096 1991-04-12
PCT/EP1992/000748 WO1992018752A1 (de) 1991-04-12 1992-04-03 Gliederanker

Publications (2)

Publication Number Publication Date
EP0578713A1 EP0578713A1 (de) 1994-01-19
EP0578713B1 true EP0578713B1 (de) 1996-05-22

Family

ID=6429509

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92908139A Expired - Lifetime EP0578713B1 (de) 1991-04-12 1992-04-03 Gliederanker

Country Status (6)

Country Link
EP (1) EP0578713B1 (enExample)
AT (1) ATE138448T1 (enExample)
AU (1) AU650126B2 (enExample)
DE (1) DE4112096C1 (enExample)
PL (1) PL168768B1 (enExample)
WO (1) WO1992018752A1 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006105557A1 (en) * 2005-03-29 2006-10-05 Grinaker-Lta Limited Rock anchor
ITVI20120052A1 (it) * 2012-03-07 2013-09-08 Dalla Gassa Srl Metodo di realizzazione di una struttura di consolidamento e di contenimento di terreni soggetti a movimenti e struttura di contenimento e di consolidamento realizzata mediante tale metodo
WO2016210456A2 (en) * 2015-06-23 2016-12-29 Ncm Innovations (Pty) Ltd Grout delivery system
CN108589722A (zh) * 2018-06-05 2018-09-28 重庆科技学院 一种挤入式土层锚杆的一次成型装置及方法
CN110644944B (zh) * 2019-08-26 2021-05-18 中煤科工集团西安研究院有限公司 一种煤矿井下复杂地层用外平式高压旋喷注浆装置及方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3510997C1 (de) * 1985-03-27 1986-06-05 Ruhrkohle Ag, 4300 Essen Nachgiebiger Gebirgsanker
DE3922906A1 (de) * 1989-07-12 1991-01-24 Klaus Ketterer Verfahren zum einbringen von nachgiebigen gebirgsankern und gebirgsanker zur durchfuehrung des verfahrens

Also Published As

Publication number Publication date
EP0578713A1 (de) 1994-01-19
ATE138448T1 (de) 1996-06-15
PL168768B1 (en) 1996-04-30
DE4112096C1 (enExample) 1992-11-26
AU1540492A (en) 1992-11-17
AU650126B2 (en) 1994-06-09
WO1992018752A1 (de) 1992-10-29

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