(19)
(11) EP 2 096 258 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
09.09.2009 Bulletin 2009/37

(43) Date of publication A2:
02.09.2009 Bulletin 2009/36

(21) Application number: 09007562.3

(22) Date of filing: 19.12.2007
(51) International Patent Classification (IPC): 
E21D 20/02(2006.01)
E02D 5/80(2006.01)
 E21D 21/00(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

(30) Priority: 19.12.2006 DE 102006059891

(62) Application number of the earlier application in accordance with Art. 76 EPC:
07254935.5 / 1939394

(71) Applicant: Minova International Limited
Park Road, Holmewood Industrial Estate Chesterfield Derbyshire S42 5UY (GB)

(72) Inventors:
  • Grocholewski, Marek
    61-627 Poznan (PL)
  • Bitz, Charles
    8902 Urdorf (CH)
  • Steiert, Roger
    8964 Rudolfstetten-Friedlisberg (CH)
  • Wittmann, Rémy
    68130 Altkirch (FR)
  • Bartkowski, Casimir
    68790 Morschwiller le Bas (FR)

(74) Representative: Peel, James Peter 
Barker Brettell LLP 10-12 Priests Bridge
London SW15 5JE
London SW15 5JE (GB)

   


(54) Anchor with grout jacket


(57) An anchor (1) for consolidating non-cohesive rock layers or for connecting them to solid rock (2) primarily has the necessary components for realising a stressed or expansion anchor. Furthermore, when a conventional domed plate (10) is used, which reliably transmits the necessary stress forces, it is possible additionally to bond the anchor bar (4) in the drill hole (3) after stressing. To this end, the anchor bar (4) is either constructed with a connecting tube (22) with distributor head (24) or the sheathing tube (11) comprises a top tube (50), these both fulfilling the task of conveying the grout bonding material (12) reliably from the drill hole mouth end of the anchor bar (4) to the rock end (5A) and then diverting it there and returning it to the drill hole mouth, so ensuring complete fixing and sheathing of the anchor bar (4) in the drill hole (3).







Search report