EP0006515A1 - Process for the anchoring of a tie rod - Google Patents

Process for the anchoring of a tie rod Download PDF

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Publication number
EP0006515A1
EP0006515A1 EP79101865A EP79101865A EP0006515A1 EP 0006515 A1 EP0006515 A1 EP 0006515A1 EP 79101865 A EP79101865 A EP 79101865A EP 79101865 A EP79101865 A EP 79101865A EP 0006515 A1 EP0006515 A1 EP 0006515A1
Authority
EP
European Patent Office
Prior art keywords
packer
borehole
injected
tension member
reaction
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.)
Granted
Application number
EP79101865A
Other languages
German (de)
French (fr)
Other versions
EP0006515B1 (en
Inventor
Lothar Dr. Preis
Rudolf Dipl.-Ing. Schmidt
Eberhard Born
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.)
STRABAG BAU - AG
Bayer AG
Strabag Bau AG
Original Assignee
STRABAG BAU - AG
Bayer AG
Strabag Bau AG
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 STRABAG BAU - AG, Bayer AG, Strabag Bau AG filed Critical STRABAG BAU - AG
Priority to AT79101865T priority Critical patent/ATE154T1/en
Publication of EP0006515A1 publication Critical patent/EP0006515A1/en
Application granted granted Critical
Publication of EP0006515B1 publication Critical patent/EP0006515B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • E21D21/0093—Accessories
    • 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
    • E21D20/00—Setting anchoring-bolts
    • E21D20/02—Setting anchoring-bolts with provisions for grouting
    • E21D20/025—Grouting with organic components, e.g. resin

Definitions

  • the invention is directed to a method for anchoring a prestressable and retensionable anchor in a rock hole.
  • the object of the invention is a simple method for anchoring tension members in rock.
  • the tension members should consist of high-tensile materials, and the anchors must therefore be able to withstand high loads.
  • a clear, secure fastening should also be possible overhead.
  • the object is achieved in that the tension member is pushed into the borehole with a packer which is as far from the end as the pressing section is to be long, and a reaction resin is injected into the borehole behind the packer. Further advantageous developments of the method are described in the subclaims.
  • the packer on the tension member ensures that the predetermined bond length can be adhered to exactly. Regardless of the borehole conditions, the cavity in the area of the bond is completely filled. Because that injected Reaction mixture is generated outside the borehole under controllable conditions, any desired composition can be produced with sufficient homogeneity.
  • a wide range is available as a reaction resin, especially epoxy, polyester and polyurethane resins.
  • the packer in the anchoring area of the tension member can be designed differently; possible embodiments are cuff and bellows.
  • a bellows can be fixed on the tension member by means of a clamp or clamp connection. When the tension member is inserted into the borehole, the bellows can be pressed onto the anchor profile with a stocking-like film or a stocking-like coarse-mesh fabric in such a way that insertion is not hindered by the packer.
  • These foils or fabrics can be removed at predetermined breaking points with a rip cord or rendered ineffective. The bellows then relaxes again and tries to return to its original shape.
  • the bellows can also be set up more easily by briefly pulling back the tension member.
  • the bellows fixes the tension member in the center of the borehole; the anchor is thus largely secured in the hanging against falling out and moving.
  • the bellows is already capable of absorbing high compression pressures.
  • the material of the bellows should be so elastic that the bellows stand up automatically within the annular gap after relief; it preferably consists of thermoplastics, elastomers or polyurethanes, which can also be foamed.
  • the inner bellows rings or the bellows spiral can be built up on a stocking-like, coarse-mesh, elastic fabric that has a high elasticity.
  • the packer can also be slipped onto the anchor in the form of a sleeve.
  • the sleeve can be made of cellulose, for example in the form of corrugated cardboard or non-woven.
  • the foaming of montmorrillonite soaked in isocyanate or a hydrophilic fast-setting gypsum can result in a significant increase in volume.
  • the annular gap between the anchor and the borehole wall is thus completely filled for a short time, so that the anchor is fixed again and sliding or slipping in the hanging area is excluded.
  • the moisture-packed sleeve - the packer - is pushed onto the anchor and fixed.
  • the packaging is loosened, the cuff soaked with water and the anchor set. This reaction can be controlled within wide limits according to the start time and expiry.
  • Both steel and fiber-reinforced plastics are possible as the material of the tension members. Since the anchor rods do not have to be screwed into the drill holes, thin, low-torsion tension members made of unidirectionally reinforced glass fiber plastics can also be used.
  • the packers can be coated with a stabilizer, so that the hardening of the injected resins that touch the packer immediately takes place very quickly, thus creating a wall for the further resin injected deepest in the borehole.
  • epoxy resins that are cured with aliphatic polyamines can be strongly activated with tertiary amines, acids, acid chlorides.
  • the rapid curing of polyurethane resins can be greatly accelerated, for example, with tertiary amines, silaamines, alkali hydroxides or organic metal compounds.
  • Polyester resin systems can also be activated with amine and metal salt accelerators. This ensures the use of low-activity reactive resins, even in those anchorages where the borehole runs up into the rock.
  • Anchors with tension members are then preferably made of glass fiber reinforced plastics. These anchors are characterized by simple handling and high corrosion resistance and can also be easily destroyed in subsequent construction measures. Because of the comparatively low modulus of elasticity, larger expansion paths are required for the pretension, but the loss of clamping force is correspondingly less than with steel. Because of the lower modulus of elasticity, it is possible to install long-length anchors without coupling joints even in confined spaces.
  • Preferred areas of application for the anchoring according to the invention are temporary and permanent anchors for securing mountains and for securing expansion in coal and ore mining.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Paleontology (AREA)
  • Piles And Underground Anchors (AREA)
  • Rock Bolts (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

By using a packer which is pushed as far over an anchor as the intended length of the moulding, the cavity in a borehole in the region of the bond can be completely filled with a reactive resin. Overhead work is possible even with slowly reacting resins. By using a catalyst on the packer, the reactive resin injected into the borehole behind the packer can be made to harden very rapidly.

Description

Die Erfindung richtet sich auf ein Verfahren zum Verankern eines vor- und nachspannbaren Ankers in einem Felsloch.The invention is directed to a method for anchoring a prestressable and retensionable anchor in a rock hole.

Bei Erd- und Felsankern wird nur bei einer Verpreßinjektion ein einwandfreier Formschluß zwischen dem Zugglied und dem Bohrloch erreicht. Bei den so hergestellten Ankern mit Zuggliedern üblicherweise aus Stahl ist die Korrosionsgefahr groß; innerhalb des durch Injektion entstandenen Verpreßkörpers können infolge überhöhter lokaler Spannungen und Längenänderungen bei Gebirgsverschiebungen Risse auftreten und das Zugglied wird in diesen Bereich korrosiv angegriffen. Mit bekannten Klebepatronen läßt sich die Länge der Krafteintragung nur sehr unvollkommen abschätzen. Verwendet man gefüllte Systeme in Klebepatronen, so wird häufig keine homogene Mischung erreicht. Besonders unsicher ist eine Verankerung über Kopf, d.h. wenn das Zugglied an einer Decke befestigt werden muß. Hier müssen sehr aktive Klebesysteme verwendet werden, die aber nicht die erforderlichen hochwertigen Klebeeigenschaften haben. Beim Verpressen mit hydraulischem Mörtel wird üblicherweise zunächst ein größerer Teil verpreßt und dann durch Spülen ein Teil des Zuggliedes wieder freigelegt. Dieses Verfahren ist sehr aufwendig.With earth and rock anchors, a perfect positive connection between the tension member and the borehole is only achieved with a grouting injection. In the case of the anchors with tension members usually made of steel, the risk of corrosion is great; Cracks can occur within the grouting body created by injection due to excessive local stresses and changes in length during mountain shifts, and the tension member is attacked corrosively in this area. With known adhesive cartridges, the length of the force application can only be estimated very imperfectly. If filled systems are used in adhesive cartridges, a homogeneous mixture is often not achieved. One is particularly unsafe Anchoring overhead, ie if the tension member has to be attached to a ceiling. Very active adhesive systems must be used here, but they do not have the required high-quality adhesive properties. When grouting with hydraulic mortar, a larger part is usually first grouted and then part of the tension member is uncovered again by flushing. This process is very complex.

Aufgabe der Erfindung ist ein einfaches Verfahren zum Verankern von spannbaren Zuggliedern in Felsgestein. Die Zugglieder sollen aus hochzugfesten Werkstoffen bestehen, und die Anker müssen daher hohe Belastungen aufnehmen können. Neben einer rationellen Befestigung der Zugglieder im Bohrloch soll vor allem eine eindeutige sichere Befestigung auch über Kopf möglich sein. Entsprechend der Erfindung wird die Aufgabe dadurch gelöst, daß das Zugglied mit einem Packer, der so weit vom Ende entfernt ist, wie die Verpreßstrecke lang werden soll, in das Bohrloch geschoben und ein Reaktionsharz hinter den Packer in das Bohrloch injiziert wird. Weitere vorteilhafte Ausbildungen des Verfahrens sind in den Unteransprüchen beschrieben.The object of the invention is a simple method for anchoring tension members in rock. The tension members should consist of high-tensile materials, and the anchors must therefore be able to withstand high loads. In addition to a rational fastening of the tension members in the borehole, above all a clear, secure fastening should also be possible overhead. According to the invention, the object is achieved in that the tension member is pushed into the borehole with a packer which is as far from the end as the pressing section is to be long, and a reaction resin is injected into the borehole behind the packer. Further advantageous developments of the method are described in the subclaims.

Der Packer auf dem Zugglied bewirkt, daß die vorher festgelegte Verklebungslänge genau eingehalten werden kann. Unabhängig von den Bohrlochgegebenheiten ist der Hohlraum im Bereich der Verklebung vollständig ausgefüllt. Da das injizierte Reaktionsgemisch außerhalb des Bohrlochs unter kontrollierbaren Bedingungen erzeugt wird, ist jede gewünschte Zusammensetzung mit genügender Homogenität herstellbar. Als Reaktionsharz steht ein breites Spektrum zur Verfügung, insbesondere Epoxid-, Polyester- und Polyurethanharze.The packer on the tension member ensures that the predetermined bond length can be adhered to exactly. Regardless of the borehole conditions, the cavity in the area of the bond is completely filled. Because that injected Reaction mixture is generated outside the borehole under controllable conditions, any desired composition can be produced with sufficient homogeneity. A wide range is available as a reaction resin, especially epoxy, polyester and polyurethane resins.

Der Packer im Verankerungsbereich des Zuggliedes kann verschieden ausgeführt sein; mögliche Ausführungsformen sind Manschette und Faltenbalg. Ein Faltenbalg kann durch eine Klemm- oder Klammerverbindung auf dem Zugglied fixiert. Beim Einführen des Zuggliedes in das Bohrloch kann der Faltenbalg mit einer strumpfähnlichen Folie oder einem strumpfähnlichen grobmaschigen Gewebe so auf das Ankerprofil gepreßt werden, daß das Einschieben durch den Packer nicht behindert ist. Diese Folien oder Gewebe können an Sollbruchstellen durch eine Reißleine entfernt oder wirkungslos gemacht werden. Der Faltenbalg entspannt sich dann wieder und versucht, seine Ausgangsform wieder einzunehmen. Auch durch ein kurzes Zurückziehen des Zuggliedes wird das Aufstellen des Faltenbalgs erleichtert. Durch diesen Faltenbalg wird das Zugglied in der Bohrlochmitte fixiert; der Anker ist dadurch im Hangenden weitgehend gegen Herausfallen und Verschieben gesichert. Der Faltenbalg ist von sich aus schon in der Lage, hohe Verpreßdrücke aufzunehmen. Das Material des Faltenbalgs soll so elastisch sein, daß sich die Bälge nach der Entlastung innerhalb des Ringspalts selbstständig aufrichten; vorzugsweise besteht er aus Thermoplasten, Elastomeren oder Polyurethanen, die auch geschäumt sein können. Zur Unterstützung der elastischen Eigenschaften können die innenliegenden Balgringe oder die Balgspirale auf einem strumpfähnlichen, grobmaschigen, elastischen Gewebe, das eine hohe Dehnfähigkeit besitzt, aufgebaut sein. Bei der Entspannung des Balges durch die Zerstörung der Antriebsfolie bzw. des Gewebes wird der Balg durch das strumpfartige innere Gewebe in Längsrichtung so zusammengezogen, daß der Ringspalt voll ausgefüllt ist. Der Packer kann auch in Form einer Manschette auf den Anker aufgeschoben werden. Die Manschette kann aus Cellulose, z.B. in Form von Wellpappe oder Vlies, aufgebaut sein. Durch das Ausschäumen von mit Isocyanat getränktem Montmorrillonit oder einem hydrophil eingestellten schnellbindenden Gips kann eine bedeutende Volumenvergrößerung erfolgen. Der Ringspalt zwischen Anker und Bohrlochwandung wird dadurch kurzfristig vollständig ausgefüllt, so daß der Anker wieder fixiert und ein Verschieben oder Abrutschen im Hangenden ausgeschlossen wird. Kurz vor dem Setzen des Ankers wird die feuchtigkeitsdicht verpackte Manschette - der Packer - auf den Anker geschoben und fixiert. Die Verpackung wird gelöst, die Manschette mit Wasser getränkt und der Anker gesetzt. Diese Reaktion ist nach Startzeit und Ablauf in weiten Grenzen steuerbar. Als Material der Zugglieder sind sowohl Stahl als auch faserverstärkte Kunststoffe möglich. Da die Ankerstangen nicht in die Bohrlöcher eingedreht werden müssen, können auch dünne, torsionsschwache Zugglieder aus unidirektional verstärkten Glasfaserkunststoffen verwendet werden.The packer in the anchoring area of the tension member can be designed differently; possible embodiments are cuff and bellows. A bellows can be fixed on the tension member by means of a clamp or clamp connection. When the tension member is inserted into the borehole, the bellows can be pressed onto the anchor profile with a stocking-like film or a stocking-like coarse-mesh fabric in such a way that insertion is not hindered by the packer. These foils or fabrics can be removed at predetermined breaking points with a rip cord or rendered ineffective. The bellows then relaxes again and tries to return to its original shape. The bellows can also be set up more easily by briefly pulling back the tension member. This bellows fixes the tension member in the center of the borehole; the anchor is thus largely secured in the hanging against falling out and moving. The bellows is already capable of absorbing high compression pressures. The material of the bellows should be so elastic that the bellows stand up automatically within the annular gap after relief; it preferably consists of thermoplastics, elastomers or polyurethanes, which can also be foamed. For support Due to the elastic properties, the inner bellows rings or the bellows spiral can be built up on a stocking-like, coarse-mesh, elastic fabric that has a high elasticity. When the bellows is relaxed due to the destruction of the drive film or the fabric, the bellows is contracted in the longitudinal direction by the stocking-like inner fabric so that the annular gap is completely filled. The packer can also be slipped onto the anchor in the form of a sleeve. The sleeve can be made of cellulose, for example in the form of corrugated cardboard or non-woven. The foaming of montmorrillonite soaked in isocyanate or a hydrophilic fast-setting gypsum can result in a significant increase in volume. The annular gap between the anchor and the borehole wall is thus completely filled for a short time, so that the anchor is fixed again and sliding or slipping in the hanging area is excluded. Shortly before the anchor is set, the moisture-packed sleeve - the packer - is pushed onto the anchor and fixed. The packaging is loosened, the cuff soaked with water and the anchor set. This reaction can be controlled within wide limits according to the start time and expiry. Both steel and fiber-reinforced plastics are possible as the material of the tension members. Since the anchor rods do not have to be screwed into the drill holes, thin, low-torsion tension members made of unidirectionally reinforced glass fiber plastics can also be used.

Der Einsatz von Reaktionsharz niedriger Aktivität ist möglich; die langsame Aushärtung führt zu besonders hochwertigen Eigenschaften der Verklebung. Auch mit langsam reagierenden Harzen ist das Arbeiten über Kopf möglich.The use of reactive resin with low activity is possible; the slow curing leads to special high-quality properties of the bond. Working overhead is also possible with slowly reacting resins.

Es gibt mehrere bevorzugte Varianten zum Einsatz der Packer. Die Packer können mit einem Stabilisator beschichtet sein, so daß die Aushärtung der injizierten Harze die den Packer unmittelbar berühren sehr schnell abläuft und somit ein Wall für das weitere im Bohrlochtiefsten injizierte Harz aufgebaut wird. Beispielsweise können Epoxidharze, die mit aliphatischen Polyaminen gehärtet werden, mit tertiären Aminen, Säuren, Säurechloriden stark aktiviert werden. Die rasche Aushärtung von Polyurethanharzen kann beispielsweise mit tertiären Aminen, Silaaminen, Alkalihydroxiden oder organischen Metallverbindungen stark beschleunigt werden. Ebenso können Polyesterharzsysteme mit Amin- und Metallsalzbeschleunigern aktiviert werden. Somit ist die Verwendung von Reaktionsharzen niedriger Aktivität gewährleistet, auch bei solchen Verankerungen, wo das Bohrloch nach oben in das Gestein verläuft.There are several preferred variants for using the packer. The packers can be coated with a stabilizer, so that the hardening of the injected resins that touch the packer immediately takes place very quickly, thus creating a wall for the further resin injected deepest in the borehole. For example, epoxy resins that are cured with aliphatic polyamines can be strongly activated with tertiary amines, acids, acid chlorides. The rapid curing of polyurethane resins can be greatly accelerated, for example, with tertiary amines, silaamines, alkali hydroxides or organic metal compounds. Polyester resin systems can also be activated with amine and metal salt accelerators. This ensures the use of low-activity reactive resins, even in those anchorages where the borehole runs up into the rock.

Zur Einleitung des Reaktionsgemisches in das Bohrlochtiefste bieten sich zwei Wege an. Mit dem Ankerkörper wird gleichzeitig ein Schlauch, der im eingebauten Zustand noch über den Packer hinaus in das Bohrlochtiefste hineinreicht, hineingeschoben und über ihn das Reaktionsharz injiziert. In vielen Fällen wird es aber möglich sein, das Reaktionsharz durch das Innere der Zugglieder einzupressen.There are two ways of introducing the reaction mixture into the deepest borehole. At the same time, a tube is inserted with the anchor body, which in the installed state extends beyond the packer into the deepest borehole, and the reaction resin is injected via it. In many cases, however, it will be possible to pass the reaction resin through the interior of the tension members press in.

Es lassen sich nach diesem Verfahren sowohl Temporärals auch Permanentanker herstellen. Bevorzugt werden danach Anker mit Zuggliedern aus glasfaserverstärkten Kunststoffen hergestellt. Diese Anker zeichnen sich durch einfache Handhabung und hohe Korrosionsbeständigkeit aus und können bei nachfolgenden Baumaßnahmen auch leicht wieder zerstört werden. Zwar sind wegen des vergleichsweise niedrigen E-Moduls größere Dehnwege bei der Vorspannung notwendig, die Spannkraftverluste sind aber dementsprechend auch geringer als bei Stahl. Wegen des niedrigeren E-Moduls ist es möglich, Anker großer Länge auch bei beengten Raumverhältnissen ohne Koppelstöße einzubauen. Bevorzugte Anwendungsgebiete für die erfindungsgemäße Verankerung sind Temporär- und Permanentanker zur Gebirgssicherung und zur Ausbausicherung beim Kohle- und Erzbergbau.Both temporary and permanent anchors can be produced using this method. Anchors with tension members are then preferably made of glass fiber reinforced plastics. These anchors are characterized by simple handling and high corrosion resistance and can also be easily destroyed in subsequent construction measures. Because of the comparatively low modulus of elasticity, larger expansion paths are required for the pretension, but the loss of clamping force is correspondingly less than with steel. Because of the lower modulus of elasticity, it is possible to install long-length anchors without coupling joints even in confined spaces. Preferred areas of application for the anchoring according to the invention are temporary and permanent anchors for securing mountains and for securing expansion in coal and ore mining.

Claims (6)

1) Verfahren zum Verankern eines vor- und nachspannbaren Ankers in einem Felsloch, dadurch gekennzeichnet, daß das Zugglied mit einem Packer, der so weit vom Ende entfernt ist wie die Verpreßstrecke lang werden soll, in das Bohrloch geschoben und ein Reaktionsharz hinter den Packer in das Bohrloch injiziert wird.1) Method for anchoring a pretensionable and re-tensionable anchor in a rock hole, characterized in that the tension member with a packer, which is as far from the end as the pressing section is to be long, pushed into the borehole and a reaction resin behind the packer in the borehole is injected. 2) Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß kurz vor dem Einbau am Packer eine Reaktion ausgelöst wird, die das Volumen des Packers vergrößert und der Packer bald darauf aushärtet.2) Method according to claim 1, characterized in that a reaction is triggered shortly before installation on the packer, which increases the volume of the packer and the packer hardens soon thereafter. 3) Verfahren nach Anspruch 1 und 2, dadurch gekennzeichnet, daß das injizierte Harz aufgrund einer katalytischen Reaktion am Packer besonders schnell erhärtet.3) Method according to claim 1 and 2, characterized in that the injected resin hardens particularly quickly due to a catalytic reaction on the packer. 4) Verfahren nach Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß ein Zugglied aus glasfaserverstärkten Kunststoffen verankert wird.4) Method according to claims 1 to 3, characterized in that a tension member made of glass fiber reinforced plastics is anchored. 5) Verfahren nach Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß über einen zusätzlich mit dem Zugglied in das Bohrloch eingeführten Schlauch, der bis hinder den Packer reicht, das Reaktionsharz injiziert wird.5) Method according to claims 1 to 4, characterized in that the reaction resin is injected via an additional tube inserted into the borehole with the tension member which extends up to the packer. 6) Verfahren nach Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß durch das Innere der Zugglieder das Reaktionsharz injiziert wird.6) Method according to claims 1 to 4, characterized in that the reaction resin is injected through the interior of the tension members.
EP79101865A 1978-06-22 1979-06-11 Process for the anchoring of a tie rod Expired EP0006515B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79101865T ATE154T1 (en) 1978-06-22 1979-06-11 METHOD OF ANCHORING TENSION MEMBERS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2827327 1978-06-22
DE19782827327 DE2827327A1 (en) 1978-06-22 1978-06-22 ANCHORING MEMBERS

Publications (2)

Publication Number Publication Date
EP0006515A1 true EP0006515A1 (en) 1980-01-09
EP0006515B1 EP0006515B1 (en) 1981-08-12

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EP79101865A Expired EP0006515B1 (en) 1978-06-22 1979-06-11 Process for the anchoring of a tie rod

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US (2) US4443132A (en)
EP (1) EP0006515B1 (en)
JP (1) JPS557395A (en)
AT (1) ATE154T1 (en)
DE (2) DE2827327A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3211822A1 (en) * 1982-03-31 1983-10-13 Glötzl, Gesellschaft für Baumeßtechnik mbH, 7512 Rheinstetten EXTENSOMETER
US4865489A (en) * 1988-08-08 1989-09-12 Jennmar Corporation Mine roof anchor having adjustable resin retaining washer
US5082399A (en) * 1988-08-08 1992-01-21 Jennmar Corporation Mine roof anchor having adjustable resin retaining washer and expansion shell assembly with friction reducing means
US5076733A (en) * 1990-05-04 1991-12-31 Jennmar Corporation Mine roof anchor assembly having an expansion shell assembly with a friction reducing means
NO170994C (en) * 1990-09-19 1993-01-13 Sinvent As ANCHOR BOLT
US5718292A (en) * 1996-07-15 1998-02-17 Halliburton Company Inflation packer method and apparatus
US6896063B2 (en) * 2003-04-07 2005-05-24 Shell Oil Company Methods of using downhole polymer plug
NO325898B1 (en) * 2005-09-15 2008-08-11 M I Swaco Norge As Separating device
CN102367736A (en) * 2011-07-19 2012-03-07 辽宁兰特科技发展有限公司 Full-length blocking of drilling free sections of anchor rod and anchor rope by using polyurethane foamed bags
KR101175521B1 (en) 2012-02-06 2012-08-21 김윤호 Compression type soil nailing apparatus and method
EP2890861B1 (en) * 2012-08-28 2018-12-12 Halliburton Energy Services, Inc. Riser displacement and cleaning systems and methods of use
US11933062B2 (en) 2019-10-29 2024-03-19 Philip John Elpers Vibration damping anchoring system
FR3141485A1 (en) * 2022-10-27 2024-05-03 Sncf Reseau CLOCKING PLUG FOR A DRILLING OF A TIE ROD OR ANCHOR NAIL, CLOSING KIT COMPRISING SUCH A CLOCKING PLUG AND METHOD FOR CLOCKING A DRILLING USING SUCH A KIT

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921463A (en) * 1952-08-20 1960-01-19 Goldfein Solomon Concrete structural element reinforced with glass fibers
CH406081A (en) * 1962-07-30 1966-01-15 Swissboring Schweizerische Tie Method for holding anchors in boreholes in loose and solid soil
CH448859A (en) * 1964-10-12 1967-12-15 American Cyanamid Co Method for reinforcing a body and bodies reinforced by this method
GB1137851A (en) * 1966-01-04 1968-12-27 Bauer Karlheinz Improvements in and relating to tie anchors in the earth
DE1926487A1 (en) * 1968-05-24 1969-12-04 Cementation Company Ltd Anchoring or holding cables
FR2096653A1 (en) * 1970-04-27 1972-02-25 Celtite Sa Fibre reinforced thermoset bolts - for lightweight nonrusting anchorages for stone cladding etc
FR2188049A1 (en) * 1972-06-05 1974-01-18 Exchem Holdings
FR2232673A1 (en) * 1973-06-05 1975-01-03 Coal Industry Patents Ltd
US4051681A (en) * 1975-10-06 1977-10-04 Lee William Yaros Unitary roof bolt assembly
AT344117B (en) * 1976-01-29 1978-07-10 Gd Anker Gmbh & Co Kg PROCEDURE FOR SETTING A MOUNTAIN ANCHOR AND HOSE AND ANCHORING ELEMENT FOR CARRYING OUT THE PROCEDURE
US4140428A (en) * 1978-03-06 1979-02-20 Shakespeare Company Tie rod support for mine
GB2004967A (en) * 1977-09-30 1979-04-11 Kubota Ltd Rock bolt

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE544161A (en) * 1955-03-24
US3108443A (en) * 1959-07-07 1963-10-29 Schucrmann Fritz Method of fixing anchor bolts in the drill holes
US3252514A (en) * 1963-03-19 1966-05-24 Joy Robert Method for producing subterranean watertight seals
US3316797A (en) * 1964-01-29 1967-05-02 Chester I Williams Rock bolt with conduit
US3306051A (en) * 1964-02-10 1967-02-28 Howlett Machine Works Rock bolt
FR1539176A (en) * 1967-08-03 1968-09-13 Soletanche Tie rod device intended to be anchored in the ground
US3698196A (en) * 1970-03-04 1972-10-17 Bergwerksverband Gmbh Method for reinforcing loose rock and coal
DE2236457A1 (en) * 1972-07-25 1974-02-07 Hinteregger Ohg R U A PROCESS FOR PRODUCING A COMPOSITE SHEETING AS MOUNTAIN SECURING IN UNDERGROUND OR ABOVE MINING
US3861155A (en) * 1972-12-05 1975-01-21 Atomic Energy Commission Pumpable rockbolt method
US4069677A (en) * 1975-06-20 1978-01-24 Kabushiki Kaisha Nitto Tekuno Group Anchor and method for constructing same
GB1506897A (en) * 1975-11-05 1978-04-12 Ici Ltd Method of securing fixing elements in rock
DE2624559C2 (en) * 1976-06-01 1985-09-05 Gebirgssicherung GmbH, Salzburg Mountain anchor
US4137970A (en) * 1977-04-20 1979-02-06 The Dow Chemical Company Packer with chemically activated sealing member and method of use thereof

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921463A (en) * 1952-08-20 1960-01-19 Goldfein Solomon Concrete structural element reinforced with glass fibers
CH406081A (en) * 1962-07-30 1966-01-15 Swissboring Schweizerische Tie Method for holding anchors in boreholes in loose and solid soil
CH448859A (en) * 1964-10-12 1967-12-15 American Cyanamid Co Method for reinforcing a body and bodies reinforced by this method
GB1137851A (en) * 1966-01-04 1968-12-27 Bauer Karlheinz Improvements in and relating to tie anchors in the earth
DE1926487A1 (en) * 1968-05-24 1969-12-04 Cementation Company Ltd Anchoring or holding cables
FR2096653A1 (en) * 1970-04-27 1972-02-25 Celtite Sa Fibre reinforced thermoset bolts - for lightweight nonrusting anchorages for stone cladding etc
FR2188049A1 (en) * 1972-06-05 1974-01-18 Exchem Holdings
FR2232673A1 (en) * 1973-06-05 1975-01-03 Coal Industry Patents Ltd
US4051681A (en) * 1975-10-06 1977-10-04 Lee William Yaros Unitary roof bolt assembly
AT344117B (en) * 1976-01-29 1978-07-10 Gd Anker Gmbh & Co Kg PROCEDURE FOR SETTING A MOUNTAIN ANCHOR AND HOSE AND ANCHORING ELEMENT FOR CARRYING OUT THE PROCEDURE
GB2004967A (en) * 1977-09-30 1979-04-11 Kubota Ltd Rock bolt
FR2404758A1 (en) * 1977-09-30 1979-04-27 Kubota Ltd ANCHOR BOLT
DE2841919A1 (en) * 1977-09-30 1979-05-10 Kubota Ltd ANCHORING DEVICE
US4140428A (en) * 1978-03-06 1979-02-20 Shakespeare Company Tie rod support for mine

Also Published As

Publication number Publication date
DE2960626D1 (en) 1981-11-12
ATE154T1 (en) 1981-09-15
JPS641640B2 (en) 1989-01-12
US4501516A (en) 1985-02-26
DE2827327A1 (en) 1980-01-10
US4443132A (en) 1984-04-17
JPS557395A (en) 1980-01-19
EP0006515B1 (en) 1981-08-12

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