DE4112096C1 - - Google Patents

Info

Publication number
DE4112096C1
DE4112096C1 DE4112096A DE4112096A DE4112096C1 DE 4112096 C1 DE4112096 C1 DE 4112096C1 DE 4112096 A DE4112096 A DE 4112096A DE 4112096 A DE4112096 A DE 4112096A DE 4112096 C1 DE4112096 C1 DE 4112096C1
Authority
DE
Germany
Prior art keywords
anchor
rope
sections
anchor bolt
link
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 - Fee Related
Application number
DE4112096A
Other languages
German (de)
Inventor
Peter Dr. 4300 Essen De Stephan
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
Priority to DE4112096A priority Critical patent/DE4112096C1/de
Priority to PCT/EP1992/000748 priority patent/WO1992018752A1/en
Priority to AU15404/92A priority patent/AU650126B2/en
Priority to AT92908139T priority patent/ATE138448T1/en
Priority to EP92908139A priority patent/EP0578713B1/en
Priority to PL92301152A priority patent/PL168768B1/en
Application granted granted Critical
Publication of DE4112096C1 publication Critical patent/DE4112096C1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74Means for anchoring structural elements or bulkheads
    • E02D5/76Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/0046Anchoring-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
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/006Anchoring-bolts made of cables or wires

Abstract

The invention concerns an articulated anchor bolt made up of sections connected to each other by a rope in such a way that rope articulations are formed between the sections. The anchor bolt also includes a section with a thread for fitting the tie plate, and is fully cement-stabilizable along its whole length in accordance with applicable regulations. The anchor bolt (10) is made up of tubular casing sections (3, 11, 14) in which a continuous steel wire rope (1) is housed, thus forming a multiplicity of articulations (2). The casing sections (3, 11, 14) are fixed to the rope (1) by cold-stamping (4). Fitted to one end of the rope (1) is a permanently fixed sleeve (5), and to the other end a permanently fixed element with a fitting thread (7). Located between the sleeve (5) and the nearest casing section (11) is a destructible tubular element (9) which gives the anchor bolt greater resilience in this zone (8).

Description

Die Erfindung betrifft einen Gliederanker aus An­ kerabschnitten, die über ein Seil verbunden sind, so daß zwischen den Ankerabschnitten Seilgelenke gebildet werden, ein Ankerabschnitt mit einem Gewinde für die Ankerplattenmontage versehen ist, wobei der Gliederanker bestimmungsgemäß auf seiner Einbaulänge voll vermörtelbar ist. Ein solcher Gliederanker ist aus dem französischen Bergbau bekanntgeworden. Dieser Gliederanker ist insbesondere für eine Verwendung in solchen Bohrlöchern entwickelt worden, in denen durchgehende Ankerstangen aus Platzgründen nicht ein­ gebracht werden können. Bei dieser Gliederanker­ ausgestaltung hat es sich jedoch als nachteilig erwiesen, daß das geringe Dehnvermögen und damit die geringe Arbeitsfähigkeit bis zum Bruch nicht für alle Anwendungsfälle geeignet sind.The invention relates to a link anchor from An ker sections that are connected by a rope, so that between the anchor sections rope joints are formed, an anchor section with a thread is provided for the anchor plate assembly, the Link anchor according to its installation length is fully mortarable. Such a link anchor is became known from French mining. This Link anchor is especially for use in such drill holes have been developed in which through anchor rods not for space reasons can be brought. With this link anchor design, however, has proven to be disadvantageous proved that the low elasticity and thus the poor ability to work until the break not for everyone Use cases are suitable.

Der vorliegenden Erfindung liegt ausgehend von einem gattungsgemäßen Gliederanker die Aufgabe zugrunde, dessen Nachteile des geringen Dehnvermögens und der geringen Arbeitsfähigkeit zu vermeiden. The present invention is based on a generic link anchor based on the task its disadvantages of the low stretch and the to avoid low work capacity.  

Diese Aufgabe wird durch einen Gliederanker gelöst, der die kennzeichnenden Merkmale des Patentanspruchs aufweist.This task is solved by a link anchor, of the characterizing features of the claim having.

Der erfindungsgemäße Gliederanker erhält durch das Nachgiebigkeitselement im Bohrlochtiefsten einen ver­ gleichsweise großen Lastweg unter in etwa konstanten Lastbedingungen, bevor nach Erschöpfung der Nachgie­ bigkeit eine Auflastung bis zur Bruchkraft des Seiles erfolgt. Er läßt sich somit auch bei Gebirgsver­ hältnissen anwenden, die eine stärkere Auflockerung des Gebirges um einen Hohlraum erwarten lassen.The link anchor according to the invention receives from the Resilience element in the deepest hole a ver equally large load path under roughly constant Load conditions before after exhaustion load up to the breaking strength of the rope he follows. It can therefore also be used in the Gebirgsver Apply conditions that are more loosening of the mountains around a cavity.

Der erfindungsgemäße Gliederanker ist in der Figur der Zeichnung dargestellt und erläutert.The link anchor according to the invention is in the figure shown and explained in the drawing.

In der Fig. ist ein Beispiel für eine bevorzugte Aus­ gestaltung eines erfindungsgemäßen nachgiebigen fle­ xiblen Gliederankers 10 in einem Längschnitt darge­ stellt. Er besteht im Beispiel aus einem Stahlseil 1, das zwischen Seilgelenken 2 mit Hüllrohrabschnitten 3, 11, 14, z. B. aus Stahl, umgeben ist. Die Hüll­ rohrabschnitte 3, 11, 14 sind in bestimmten Abständen durch Kaltverformungsprägungen 4 auf dem Stahlseil 1 fixiert. Zum Zweck der Verankerung im Bohrlochtief­ sten befindet sich an einem Seilende eine Verpreß­ hülse 5, die die volle Bruchkraft des Stahlseiles 1 aufnehmen kann. Am bohrlochmundseitigen anderen Sei­ lende ist das Stahlseil 1, in einem Verpreßteil 6 des Hüllrohrabschnitts 14 verpreßt, das ebenfalls die volle Bruchkraft trägt, und das mit einem Montagege­ winde 7 zur Montage einer Ankerplatte 12 mittels ei­ ner Mutter 13 versehen ist. In the Fig. Is an example of a preferred design from a resilient flexible flexible anchor 10 according to the invention in a longitudinal section Darge provides. It consists in the example of a steel cable 1 , the between cable joints 2 with cladding sections 3, 11, 14, z. B. is surrounded by steel. The enveloping pipe sections 3, 11, 14 are fixed at certain intervals by cold deformation embossing 4 on the steel cable 1 . For the purpose of anchoring in the borehole deepest is a compression sleeve 5 at one end of the rope, which can absorb the full breaking force of the steel cable 1 . At the other side of the borehole loin, the steel cable 1 is pressed into a pressing part 6 of the cladding tube section 14 , which also bears 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 .

Zwischen der Verpreßhülse 5 und dem Hüllrohrabschnitt 11 im Bohrlochtiefsten ist eine Nachgiebigkeits­ strecke 8 vorgesehen, die mit einem leicht zer­ störbaren Rohrkörper 9, z. B. aus Kunststoff oder dünnem Blech, abgedeckt ist. Nach dem Einbringen in das Bohrloch wird der erfindungsgemäße Gliederanker bestimmungsgemäß durch Einbringen von Mörtel in die Zwischenräume zwischen Bohrlochwand und Gliederanker befestigt.Between the compression sleeve 5 and the cladding tube section 11 in the deepest borehole, a compliance path 8 is provided, which with an easily disruptible tubular body 9 , z. B. made of plastic or thin sheet metal is covered. After it has been introduced into the borehole, 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.

Die Funktionsweise des erfindungsgemäßen Glieder­ ankers 10 ist folgende: Beim Öffnen von Kluftflächen oder bei Scherbewegungen im Gebirgskörper nach dem Einbringen in ein Bohrloch nimmt der Gliederanker 10 zunächst Last auf, bis die Reibung zwischen den fixierten Hüllrohrabschnitten 3, 11, 14 und dem Stahlseil 1 überwunden wird. Anschließend wird der Nachgiebigkeitsweg 8 ausgeschöpft, bis die Verpreß­ hülse 5 am obersten Hüllrohrabschnitt 11 zur Anlage kommt. Danach lastet der Gliederanker 10 bis zur Bruchkraft des Stahlseiles 1 auf.The operation of the link anchor 10 according to the invention is as follows: When opening fracture surfaces or shearing movements in the mountain body after being introduced into a borehole, the link anchor 10 initially takes load until the friction between the fixed cladding tube sections 3, 11, 14 and the steel cable 1 is overcome becomes. 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 until the breaking force of the steel cable 1 .

 1 Stahlseil
 2 Seilgelenk
 3 Hüllrohrabschnitt
 4 Kaltverformungsprägung
 5 Verpreßhülse
 6 Verpreßteil
 7 Montagegewinde
 8 Nachgiebigkeitsstrecke
 9 Rohrkörper
10 Gliederanker
11 Hüllrohrabschnitt
12 Ankerplatte
13 Mutter
14 Hüllrohrabschnitt
1 steel rope
2 rope joint
3 cladding tube section
4 Cold stamping
5 compression sleeve
6 grouting part
7 mounting threads
8 compliance route
9 tubular body
10 link anchors
11 cladding tube section
12 anchor plate
13 mother
14 cladding tube section

Claims (1)

Gliederanker aus Ankerabschnitten, die über ein Seil verbunden sind, so daß zwischen den Ankerabschnitten Seilgelenke gebildet werden, sowie ein Ankerabschnitt mit einem Gewinde für die Ankerplattenmontage versehen ist, wobei der Gliederanker bestimmungsgemäß auf seiner Einbaulänge voll vermörtelbar ist, dadurch gekennzeich­ net, daß der Gliederanker (19) aus Hüllrohrabschnitten (3, 11, 14) gebildet ist, in denen ein durchgehendes Stahlseil (1) untergebracht ist, wobei mehrere Seilge­ lenke (2) gebildet werden, die Hüllrohrabschnitte (3, 11, 14) durch Kaltverformungsprägungen (4) auf dem Stahlseil (1) fixiert sind, an einem Ende des Stahlsei­ les (1) eine Verpreßhülse (5) und am anderen Ende ein Verpreßteil (6) vorgesehen sind, das ein Montagegewinde (7) trägt, sowie zwischen der Verpreßhülse (5) und dem Hüllrohrabschnitt (11) ein zerstörbarer Rohrkörper (9) als Nachgiebigkeitsstrecke (8) angeordnet ist.Link anchors made of anchor sections, which are connected by a rope, so that cable joints are formed between the anchor sections, and an anchor section is provided with a thread for the anchor plate assembly, the link anchor being fully mortared according to its installation length, characterized in that the link anchor ( 19 ) is formed from cladding tube sections ( 3 , 11 , 14 ), in which a continuous steel cable ( 1 ) is accommodated, wherein several cable joints ( 2 ) are formed, the cladding tube sections ( 3 , 11 , 14 ) by cold deformation embossing ( 4 ) are fixed on the steel cable ( 1 ), at one end of the steel cable ( 1 ) a compression sleeve ( 5 ) and at the other end a compression part ( 6 ) are provided, which carries an assembly thread ( 7 ), and between the compression sleeve ( 5 ) and the cladding tube section ( 11 ) has a destructible tubular body ( 9 ) as a compliance path ( 8 ).
DE4112096A 1991-04-12 1991-04-12 Expired - Fee Related DE4112096C1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE4112096A DE4112096C1 (en) 1991-04-12 1991-04-12
PCT/EP1992/000748 WO1992018752A1 (en) 1991-04-12 1992-04-03 Articulated anchor bolt
AU15404/92A AU650126B2 (en) 1991-04-12 1992-04-03 Articulated anchor bolt
AT92908139T ATE138448T1 (en) 1991-04-12 1992-04-03 LINK ANCHOR
EP92908139A EP0578713B1 (en) 1991-04-12 1992-04-03 Articulated anchor bolt
PL92301152A PL168768B1 (en) 1991-04-12 1992-04-03 Articulated anchor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4112096A DE4112096C1 (en) 1991-04-12 1991-04-12

Publications (1)

Publication Number Publication Date
DE4112096C1 true DE4112096C1 (en) 1992-11-26

Family

ID=6429509

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4112096A Expired - Fee Related DE4112096C1 (en) 1991-04-12 1991-04-12

Country Status (6)

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

Cited By (1)

* 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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVI20120052A1 (en) * 2012-03-07 2013-09-08 Dalla Gassa Srl METHOD OF REALIZATION OF A CONSOLIDATION AND CONTAINMENT STRUCTURE OF LAND SUBJECT TO MOVEMENTS AND CONSTRUCTION STRUCTURE AND CONSOLIDATION ACHIEVED BY SUCH METHOD
EP3314091B1 (en) * 2015-06-23 2020-04-29 NCM Innovations (pty) Ltd Grout delivery system
CN108589722A (en) * 2018-06-05 2018-09-28 重庆科技学院 A kind of one-shot forming apparatus and method of extruding type soil bolt
CN110644944B (en) * 2019-08-26 2021-05-18 中煤科工集团西安研究院有限公司 Outer flat type high-pressure rotary jet grouting device and method for complex stratum under coal mine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3510997C1 (en) * 1985-03-27 1986-06-05 Ruhrkohle Ag, 4300 Essen Yielding roof bolt
DE3922906A1 (en) * 1989-07-12 1991-01-24 Klaus Ketterer Flexible rock anchors for cramped conditions in a mine - consists of cone shaped links on cable core

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NICHTS ERMITTELT *

Cited By (1)

* 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

Also Published As

Publication number Publication date
ATE138448T1 (en) 1996-06-15
PL168768B1 (en) 1996-04-30
EP0578713A1 (en) 1994-01-19
EP0578713B1 (en) 1996-05-22
AU1540492A (en) 1992-11-17
AU650126B2 (en) 1994-06-09
WO1992018752A1 (en) 1992-10-29

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Legal Events

Date Code Title Description
8100 Publication of patent without earlier publication of application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee