EP0196451A1 - Elément de tension pour un boulon d'ancrage de roche ou similaire - Google Patents

Elément de tension pour un boulon d'ancrage de roche ou similaire Download PDF

Info

Publication number
EP0196451A1
EP0196451A1 EP86102426A EP86102426A EP0196451A1 EP 0196451 A1 EP0196451 A1 EP 0196451A1 EP 86102426 A EP86102426 A EP 86102426A EP 86102426 A EP86102426 A EP 86102426A EP 0196451 A1 EP0196451 A1 EP 0196451A1
Authority
EP
European Patent Office
Prior art keywords
tension member
member according
steel wires
synthetic resin
tension
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
EP86102426A
Other languages
German (de)
English (en)
Other versions
EP0196451B1 (fr
Inventor
Widmann Aktiengesel Dyckerhoff
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.)
Walter Bau AG
Original Assignee
Dyckerhoff and Widmann 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 Dyckerhoff and Widmann AG filed Critical Dyckerhoff and Widmann AG
Priority to AT86102426T priority Critical patent/ATE36893T1/de
Publication of EP0196451A1 publication Critical patent/EP0196451A1/fr
Application granted granted Critical
Publication of EP0196451B1 publication Critical patent/EP0196451B1/fr
Expired legal-status Critical Current

Links

Images

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
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/0033—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts having a jacket or outer tube
    • 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 tension member for a rock bolt or the like and a method for its manufacture.
  • Rock bolts essentially have the task of securing rock packs against displacements as early as possible when opening cavities in a naturally occurring mountain range with fissures.
  • a typical type of stress of such rock bolts is a combined tensile and shear stress with large shear paths.
  • Tension members that are used as rock bolts must therefore have a high work capacity in order to be able to take part in the large bends.
  • the stiffness of a solid cross-section, e.g. a steel rod is an obstacle.
  • tubular tension members made of steel with a thin wall, e.g. be pressed against the borehole wall by means of hydraulic pressure and transmit the force by friction.
  • Tubular tension members of this type have an even lower shear resistance than rod-shaped anchors; however, they allow a greater shear path, since the cavity of the borehole remains essentially free.
  • Tubular tension members have no corrosion protection and cannot be produced in any lengths. Anchoring bodies cannot be attached to their smooth outer surface.
  • the invention has for its object to provide a tension member for a rock bolt, which can be produced economically in any length, has a high work capacity to be able to take strong bends and also gives the possibility of anchoring body, e.g. to be able to attach in the form of threaded nuts or the like.
  • a tension member which consists of a bundle of, leaving a central cavity in a tubular body made of a hardening, plastic material, e.g. Resin embedded steel wires, the tubular body has a profile on the outer circumference.
  • the steel wires are expediently arranged in a radially symmetrical manner in the tubular body, which itself advantageously has a circular cross section.
  • the central cavity also expediently has a circular cross section.
  • the profiling of the tension member on its outer surface which can also be seen on a covering of the tubular body, e.g. can be formed from a thermoplastic synthetic resin, in particular if it is designed as a screw thread, for fixing the tension member to the head by means of an appropriately designed anchoring body.
  • a bracing in relation to the surface of the underground cavity is generally sufficient, since only a force-fit connection to this surface is usually required for the rock bolt to be effective
  • the central cavity of the tension member if it is still open after it has been installed in the borehole, allows control of possible shear movements or the insertion of measuring probes. It can also be used to inject a hardening material into the borehole or to vent if hardening material is injected in another way. It is expedient if at least in partial areas of the length of the tension member along at least one surface line from the central cavity outward openings are provided, which can be valve-shaped.
  • the profiling of the outer surface of the tension member can also only extend over partial regions of its length, while regions with a smooth outer surface are provided between the regions provided with a profiling.
  • a tension member according to the invention also provides excellent protection against corrosion, since the steel wires are completely embedded in synthetic resin; This is especially true when it is surrounded by a sheath. Tension members of this type can therefore also be used as permanent anchors and thus promote the path to a single-shell expansion of the underground cavity.
  • the invention relates to a method for producing such a tension member.
  • an inner tube made of thermoplastic synthetic resin, e.g. PE, manufactured Even before the material of the inner tube has hardened, the steel wires are then fed along its outer surface and pressed into its surface. These steel wires are then passed through a plastic, hardening mass, e.g. a polyester resin, encased Finally, either in the course of this process or in a separate subsequent process step, e.g. Cover made of a thermoplastic material, such as PVC, applied
  • the particular advantage of the method is that it is possible in this way to produce a tension member for a rock bolt in a continuous process, which can be cut to any length and, if the profile is formed on its outer surface as a screw thread, also screwing one Anchoring body allowed at any point
  • Fig. 1 shows in longitudinal section, Fig. 2 in plan view and Fig. 3 in cross section a rock bolt with a tension member according to the invention.
  • the tension member 1 consists in this embodiment of a total of eight steel wires 2, which in a tubular body 3 made of a hardening mass, e.g. are embedded from a synthetic resin, preferably polyester resin.
  • a central cavity 4 In the interior of the tubular body 3 there is a central cavity 4; its outer surface has a profile 5, e.g. in the form of a coarse thread that is used to screw on an anchoring body, e.g. a mother.
  • the tension member 1 is inserted into a borehole 6, which can of course be inclined in any direction to the underground cavity to be secured and at the bottom of the drilling hole by a hardening material 7, e.g. a synthetic resin or cement mortar, fixed
  • a hardening material e.g. a synthetic resin or cement mortar
  • This hardening material can, as is customary in so-called synthetic resin adhesive anchors, be introduced in the form of a cartridge containing two adhesive components into the borehole 6, which is destroyed when the tension member is inserted, thereby activating the adhesive.
  • the hardening material can also be injected either through the central cavity 4 or directly into the outer annular space; in the latter case, the central cavity 4 can serve as a vent line.
  • the tension member 1 is fixed by an anchoring body 8 with a countersunk screw part 9 ′, which is supported by means of a flanged edge 9 ′′ against an abutment plate 10 with a central opening 11.
  • the abutment plate 10 is bent open in the region of the opening 11, whereby This recessed arrangement of the screw part 9 'of the anchoring body 8 has the advantage that the screw part 9', which must have a great length due to the lower strength of the tubular body 3 compared to steel, does not have this length Length inwardly protrudes into the surface of the underground cavity
  • the tension member according to the invention which can have lengths of 4 to 6 m, optionally also up to 8 m, consists, for example, with an outer diameter of approximately 2 5 mm, from steel wires with a 6 mm diameter; the central cavity 4 then has a diameter of 9 mm.
  • the tension member can be produced, for example, by extrusion, the wires having to be fed laterally to the extrusion head in order to be able to completely encase them.
  • FIGS. 5 to 7 A particularly advantageous possibility for producing a tension member according to the invention is shown in individual phases in FIGS. 5 to 7.
  • the wires 2 are fed in from the outside in the radial direction and are pressed into the circumferential surface of the inner tube 3' in a regular sequence along the outer circumference (FIG. 6).
  • the wires 2 are enveloped by the hardening mass 3 ′′, for example a reactive synthetic resin such as a polyester resin or the like.
  • an outer sheath tube 12 made of a thermoplastic material, for example PVC, can be extruded onto this Embodiment, this outer cladding tube 12 has the coarse thread, which is used to screw on the anchoring nut
  • FIG. 8 Another embodiment of the invention is shown in FIG. 8.
  • the tension member 1 ' which here serves as a rock bolt analogously to FIG. 1 , is not provided with a thread over its entire length, but only over partial areas 13, which are each interrupted by areas 14 with a smooth surface.
  • the threaded areas 13 form anchors with respect to the hardening material 7 filling the full length of the borehole 6.
  • the smooth areas 14 do not form a bond with the hardening material 8, so that the tension member 1 'between the areas 14 the intermediate anchors 13 can stretch more.
  • the tubular body 3, in which the wires 2 are embedded, can also be provided with radial openings in the areas between the steel wires 2. These openings, which can also be arranged only in partial areas over the length of the tension member, serve as injection and / or ventilation openings. Injecting the annulus remaining in the borehole after insertion of the tension member with a hardening material, e.g. Cement mortar, can be done through the central cavity and through the openings. In order to subsequently clear the central cavity again, the injection material remaining in it can be rinsed out.
  • a hardening material e.g. Cement mortar
  • the openings can also be valve-shaped, for example in such a way that they serve as ventilation openings when the annular space is injected through a separate injection line arranged therein. Allow only the enclosed air to escape from the outer annular space to the central cavity, but not the injection material or water separated from it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structural Engineering (AREA)
  • Piles And Underground Anchors (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Dowels (AREA)
  • Pens And Brushes (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Adhesives Or Adhesive Processes (AREA)
EP86102426A 1985-03-05 1986-02-25 Elément de tension pour un boulon d'ancrage de roche ou similaire Expired EP0196451B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86102426T ATE36893T1 (de) 1985-03-05 1986-02-25 Zugglied fuer einen felsbolzen oder dergleichen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3507732 1985-03-05
DE19853507732 DE3507732A1 (de) 1985-03-05 1985-03-05 Zugglied fuer einen felsbolzen oder dergleichen

Publications (2)

Publication Number Publication Date
EP0196451A1 true EP0196451A1 (fr) 1986-10-08
EP0196451B1 EP0196451B1 (fr) 1988-08-31

Family

ID=6264238

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86102426A Expired EP0196451B1 (fr) 1985-03-05 1986-02-25 Elément de tension pour un boulon d'ancrage de roche ou similaire

Country Status (9)

Country Link
US (1) US4664555A (fr)
EP (1) EP0196451B1 (fr)
JP (1) JPS61207800A (fr)
AT (1) ATE36893T1 (fr)
AU (1) AU565512B2 (fr)
CA (1) CA1270129A (fr)
DE (1) DE3507732A1 (fr)
NO (1) NO860728L (fr)
ZA (1) ZA861450B (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194828A (en) * 1986-08-22 1988-03-16 Australian Coal Ind Res Anchoring dowel
DE3905128A1 (de) * 1988-07-06 1990-01-11 Willich F Gmbh & Co Vollverklebbarer seilanker
EP0379388A2 (fr) * 1989-01-23 1990-07-25 Inco Limited Boulon d'ancrage creux en câbles
EP0726383A1 (fr) * 1995-02-09 1996-08-14 SIREG S.P.A. Società Italiana di Ricerca Elementi per Geotecnica Douille d'ancrage à injection pour les tunnels et les tranchées
US5929736A (en) * 1996-08-31 1999-07-27 Toyo Denso Kabushiki Kaisha Engine igniting coil device and method of winding an ignition coil
US6060973A (en) * 1995-08-25 2000-05-09 Nippondenso Co., Ltd. Slant winding electromagnetic coil and ignition coil for internal combustion engine using same
US6069549A (en) * 1996-08-07 2000-05-30 Sagem S.A. Winding, particularly for a high-voltage ignition coil circuit
DE10100715A1 (de) * 2001-01-10 2002-07-11 Wolfgang Habe Zuganker zum Stabilisieren eines Wandkörpers
WO2008130415A1 (fr) * 2007-04-19 2008-10-30 Jennmar Corporation Boulon au toit de mine avec surface d'ajustement de résine
US7736738B2 (en) 2003-12-17 2010-06-15 Terrasimco Inc. Coated mining bolt
CN102400699A (zh) * 2011-11-18 2012-04-04 山东科技大学 竹节式高强锚杆

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3620972A1 (de) * 1986-06-23 1988-01-14 Hilti Ag Mittels einer aushaertenden masse verankerbare ankerstange
DE3629365A1 (de) * 1986-08-29 1988-03-03 Hausherr & Soehne Rudolf Flexibler gebirgsanker
DE3713291A1 (de) * 1987-04-18 1988-11-03 Dyckerhoff & Widmann Ag Gebirgsanker zur sicherung von strecken und raeumen im berg- und tunnelbau
DE3919103A1 (de) * 1989-06-10 1990-12-13 Ruhrkohle Ag Seilankerschonende ankerplatte
DE4032682C2 (de) * 1990-10-15 1994-03-17 Gd Anker Gmbh & Co Kg Gebirgsanker
JP2501780B2 (ja) * 1991-05-22 1996-05-29 建設基礎エンジニアリング株式会社 アンカ―
JPH0733664B2 (ja) * 1991-06-10 1995-04-12 建設基礎エンジニアリング株式会社 アンカー
DE4203740C2 (de) * 1992-02-09 1996-07-11 Dyckerhoff & Widmann Ag Verfahren zum Herstellen eines Ankerelementes aus einer Litze aus verdrillten Stahldrähten
US5387060A (en) * 1993-03-26 1995-02-07 F. M. Locotos Equipment & Design Co. Tubular mining bolt
DE9317336U1 (de) * 1993-11-12 1994-01-27 Buddenberg, Heinrich, 47447 Moers Injektionsseilanker
AUPO220596A0 (en) * 1996-09-09 1996-10-03 Geosystems Cable bolt
FR2775011B1 (fr) * 1998-02-16 2000-03-31 Spie Batignolles Construction Procede d'ancrage direct ou indirect d'equipements sur un radier existant et dispositifs pour sa mise en oeuvre
AT408473B (de) 1998-10-20 2001-12-27 Vorspann Technik Gmbh Anker sowie bohrloch mit gesetztem anker
CA2889347C (fr) * 2007-02-28 2016-08-09 Peter H. Craig Ancrage par cable ameliore
DE102008014700A1 (de) * 2008-03-18 2009-09-24 Dywidag-Systems International Gmbh Korrosionsgeschützter Selbstbohranker sowie Verfahren zu dessen Herstellung
WO2011163449A1 (fr) 2010-06-24 2011-12-29 Nucor Steel Birmingham, Inc. Boulon d'armature fileté pouvant résister à la tension
US9010165B2 (en) 2011-01-18 2015-04-21 Nucor Corporation Threaded rebar manufacturing process and system
CN102587943B (zh) * 2012-03-19 2014-03-05 河南理工大学 一种顶板离层区树脂锚固剂快速安装方法
US10941657B2 (en) * 2016-07-12 2021-03-09 Fci Holdings Delaware, Inc. Corrosion resistant yieldable bolt
CN108746466B (zh) * 2018-06-27 2020-04-14 芜湖金宇紧固件有限公司 一种提高螺钉整体韧性的加工工艺
CN109098742B (zh) * 2018-08-20 2019-11-08 中国矿业大学 一种单锚集注式全长锚固的钢丝束及其支护方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2749068A1 (de) * 1977-11-02 1979-05-03 Gebirgssicherung Gmbh Gebirgsanker
EP0015895A1 (fr) * 1979-03-05 1980-09-17 EDARCO European Development and Research Company Ltd. Tirant pour l'ancrage d'éléments de construction dans un corps de fondement
FR2516975A1 (fr) * 1981-11-25 1983-05-27 Bergwerksverband Gmbh Boulon d'ancrage
DE3322346C1 (de) * 1983-06-22 1984-09-13 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel Gebirgsanker
DE3320460C1 (de) * 1983-06-07 1984-10-18 Thyssen Industrie Ag, 4300 Essen Nachgiebiger Gebirgsanker

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1184567B (de) * 1961-02-24 1964-12-31 Jerome Bernard Clifford Dumont Wellschlauch aus flexiblem Werkstoff
US3477474A (en) * 1967-03-22 1969-11-11 American Chain & Cable Co Wire reinforced conduit
FR1539176A (fr) * 1967-08-03 1968-09-13 Soletanche Dispositif de tirant destiné à être ancré dans le sol
US3653217A (en) * 1970-08-03 1972-04-04 Chester I Williams Rock bolt rod configuration
DE2041526C3 (de) * 1970-08-21 1980-06-04 Dyckerhoff & Widmann Ag, 8000 Muenchen Zugglied für einen Verpreßanker
US3842608A (en) * 1972-11-28 1974-10-22 L Turzillo Method and means for installing load bearing piles in situ
SE387700B (sv) * 1973-03-09 1976-09-13 A I Lundkvist Perforerat hylsformigt organ for anvendande vid s.k. bergfestning medelst i borrhal ingjuten bult
US4196755A (en) * 1977-09-19 1980-04-08 Automation Industries, Inc. Reinforced flexible duct with integral molded liner
DE2856735A1 (de) * 1978-12-29 1980-07-10 Hilti Ag Zweikomponenten-klebepatrone
US4302131A (en) * 1979-06-18 1981-11-24 Fosroc International Limited Anchor elements
US4410476A (en) * 1980-10-20 1983-10-18 The United States Of America As Represented By The Secretary Of The Navy Method for making radially compliant line array hose
DE3115062C2 (de) * 1981-04-14 1986-07-10 Stump Bohr Gmbh, 8045 Ismaning Daueranker
JPS599643Y2 (ja) * 1981-07-15 1984-03-27 川澄化学工業株式会社 輸液バツグ
US4564315A (en) * 1983-07-05 1986-01-14 Rozanc Richard C Method for anchoring a bolt in a rock-like structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2749068A1 (de) * 1977-11-02 1979-05-03 Gebirgssicherung Gmbh Gebirgsanker
EP0015895A1 (fr) * 1979-03-05 1980-09-17 EDARCO European Development and Research Company Ltd. Tirant pour l'ancrage d'éléments de construction dans un corps de fondement
FR2516975A1 (fr) * 1981-11-25 1983-05-27 Bergwerksverband Gmbh Boulon d'ancrage
DE3320460C1 (de) * 1983-06-07 1984-10-18 Thyssen Industrie Ag, 4300 Essen Nachgiebiger Gebirgsanker
DE3322346C1 (de) * 1983-06-22 1984-09-13 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel Gebirgsanker

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194828A (en) * 1986-08-22 1988-03-16 Australian Coal Ind Res Anchoring dowel
DE3905128A1 (de) * 1988-07-06 1990-01-11 Willich F Gmbh & Co Vollverklebbarer seilanker
DE3905128C2 (de) * 1988-07-06 1998-07-09 Willich F Gmbh & Co Vollverklebbarer Seilanker
EP0379388A2 (fr) * 1989-01-23 1990-07-25 Inco Limited Boulon d'ancrage creux en câbles
EP0379388A3 (fr) * 1989-01-23 1991-03-13 Inco Limited Boulon d'ancrage creux en câbles
EP0726383A1 (fr) * 1995-02-09 1996-08-14 SIREG S.P.A. Società Italiana di Ricerca Elementi per Geotecnica Douille d'ancrage à injection pour les tunnels et les tranchées
US6252483B1 (en) 1995-08-25 2001-06-26 Nippondenso Co., Ltd. Slant winding electromagnetic coil and ignition coil for internal combustion engine using same
US6060973A (en) * 1995-08-25 2000-05-09 Nippondenso Co., Ltd. Slant winding electromagnetic coil and ignition coil for internal combustion engine using same
US6069549A (en) * 1996-08-07 2000-05-30 Sagem S.A. Winding, particularly for a high-voltage ignition coil circuit
US5929736A (en) * 1996-08-31 1999-07-27 Toyo Denso Kabushiki Kaisha Engine igniting coil device and method of winding an ignition coil
DE10100715A1 (de) * 2001-01-10 2002-07-11 Wolfgang Habe Zuganker zum Stabilisieren eines Wandkörpers
US7736738B2 (en) 2003-12-17 2010-06-15 Terrasimco Inc. Coated mining bolt
US8685303B2 (en) 2003-12-17 2014-04-01 Terrasimco Inc. Coated mining bolt
WO2008130415A1 (fr) * 2007-04-19 2008-10-30 Jennmar Corporation Boulon au toit de mine avec surface d'ajustement de résine
US7566189B2 (en) 2007-04-19 2009-07-28 Jennmar Corporation Mine roof bolt with resin control surface
CN102400699A (zh) * 2011-11-18 2012-04-04 山东科技大学 竹节式高强锚杆

Also Published As

Publication number Publication date
AU565512B2 (en) 1987-09-17
NO860728L (no) 1986-09-08
DE3507732A1 (de) 1986-09-18
ZA861450B (en) 1986-10-29
US4664555A (en) 1987-05-12
CA1270129A (fr) 1990-06-12
JPS61207800A (ja) 1986-09-16
JPH0519640B2 (fr) 1993-03-17
DE3507732C2 (fr) 1987-12-10
ATE36893T1 (de) 1988-09-15
EP0196451B1 (fr) 1988-08-31
AU5424986A (en) 1986-09-11

Similar Documents

Publication Publication Date Title
EP0196451B1 (fr) Elément de tension pour un boulon d'ancrage de roche ou similaire
DE2627524C3 (de) Verpreßanker
EP0014426B1 (fr) Ancre de roche
DE3734954C2 (fr)
DE3734953C2 (de) Abstandhalter für ein spannbares Zugglied
EP0363779B1 (fr) Dispositif d'ancrage pour une barre de tension formée d'un matériau composite fibreux
EP1505223A1 (fr) Tendon protégé contre la corrosion, en particulier pour béton précontraint
DE102004020852B4 (de) Eingussdübel
DE19528999C2 (de) Verbindung von Spannbetonelementen und Verfahren hierzu
CH640306A5 (de) Gebirgsanker sowie verfahren zur verankerung von gebirgsformationen mit demselben.
EP0548832A1 (fr) Dispositif d'ancrage pour la barre de tension d'une ancre en laminé de fibres
EP0703326B1 (fr) Elément de tension inoxydable pour la réalisation d'ouvrages en béton précontraint avec post-tension
DE4432128C2 (de) Verfahren zum Herstellen eines Ankerelements für einen Erd- oder Felsanker, Felsbolzen oder dergleichen aus einer Litze aus verdrillten Stahldrähten
DE3320460C1 (de) Nachgiebiger Gebirgsanker
DE69509375T2 (de) Hochfeste litze, verankerungen und verfahren zu deren installierung
EP0351582A1 (fr) Faisceau d'armatures de tension de grande longueur pour béton précontraint à ancrage injecté et procédé pour sa mise en place
DE2225659A1 (de) Tunnelauskleidung
EP0319736B1 (fr) Méthode de fixation de boulons d'ancrage dans béton et masse compound
DE2518513A1 (de) Druckrohr aus spannbeton
DE1659131C3 (de) Spannglied verankerung für Betonbauteile und Verfahren zu ihrer Anwendung
EP2138728A2 (fr) Tige d'ancre destinée à l'ancrage dans un trou de forage
EP0697530B1 (fr) Boulon d'ancrage pour béton ou similaire
DE4032682C2 (de) Gebirgsanker
EP0899382B1 (fr) Elément d'ancrage d'un tirant ancrage
CH664803A5 (de) Anordnung zur uebertragung einer kraft und verfahren zur herstellung eines ankerstabes.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH FR GB IT LI

17P Request for examination filed

Effective date: 19861204

17Q First examination report despatched

Effective date: 19871015

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH FR GB IT LI

REF Corresponds to:

Ref document number: 36893

Country of ref document: AT

Date of ref document: 19880915

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19891027

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19920205

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19920210

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19930225

Ref country code: AT

Effective date: 19930225

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19930225

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19990226

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000229

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000229

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050225