EP 0272233 A1 19880622 - Method of stabilizing a rock structure and stabilizer therefor.
Title (en)
Method of stabilizing a rock structure and stabilizer therefor.
Title (de)
Verfahren zum Verfestigen einer Felsformation und dafür geeigneter Anker.
Title (fr)
Méthode pour solidification d'une formation de roche et dispositif d'ancrage pour cela.
Publication
Application
Priority
SE 8605408 A 19861216
Abstract (en)
A closed tubular preferably circulary cylindrical rock stabilizer is made of expansible mild steel and given a perimeter equal to pi D. After being inserted in a drill hole of a diameter slightly larger than D, the stabilizer is expanded radially by hydraulic high pressure fluid past the value D to such an extent that the irregularities of the drill hole are filled and the rock widened elastically around the stabilizer to provide an anchoring shrinkage fit therefor.
IPC 1-7
IPC 8 full level
E21D 20/00 (2006.01); E21D 21/00 (2006.01)
CPC (source: EP)
E21D 21/004 (2013.01); E21D 21/0046 (2013.01)
Citation (search report)
- [AP] EP 0207030 B1 19891206
- [AD] US 3349567 A 19671031 - MUNN JOHN E
- [AD] US 4423986 A 19840103 - SKOGBERG BO T [SE]
- [A] US 4098087 A 19780704 - SWAIN JAMES C
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0272233 A1 19880622; AU 594846 B2 19900315; AU 8259387 A 19880616; CA 1286603 C 19910723; CS 274416 B2 19910411; CS 924387 A2 19900912; FI 875508 A0 19871215; FI 875508 A 19880617; HU T48711 A 19890628; JP S63223300 A 19880916; NO 875236 D0 19871215; NO 875236 L 19880620; PL 269500 A1 19880818; SE 8605408 D0 19861216; ZA 878649 B 19880518
DOCDB simple family (application)
EP 87850353 A 19871118; AU 8259387 A 19871216; CA 554312 A 19871215; CS 924387 A 19871215; FI 875508 A 19871215; HU 554587 A 19871209; JP 29789187 A 19871127; NO 875236 A 19871215; PL 26950087 A 19871216; SE 8605408 A 19861216; ZA 878649 A 19871119