EP 0126046 A1 19841121 - A method of rock bolting, and a device, and a roof bolting apparatus.
Title (en)
A method of rock bolting, and a device, and a roof bolting apparatus.
Title (de)
Ankerausbauverfahren, Gerät dafür und Ankerausbauvorrichtung.
Title (fr)
Procédé de l'ancrage, dispositif et appareil de l'ancrage.
Publication
Application
Priority
SE 8302025 A 19830412
Abstract (en)
In roof bolting, when an anchor rod (24) is to be inserted in a borehole (26) in the rock, a cement grout is ejected as a jet from a nozzle (22) located at the mouth of the borehole to partially fill the hole before the rod is forced into the borehole. The jet of grout should have such a velocity that it reaches the bottom of the borehole. A grout pump (45, 60) forces the grout through a hose (28) to the nozzle (22).
IPC 1-7
IPC 8 full level
E21D 20/00 (2006.01); E21D 20/02 (2006.01)
CPC (source: EP)
E21D 20/003 (2013.01); E21D 20/021 (2013.01)
Citation (search report)
- [X] DE 2750532 A1 19790517 - FISCHER ARTUR DR H C
- [X] DE 2838466 A1 19800313 - BERNACK
- [X] DE 2925197 A1 19810115 - DELECKER WILLY MAX EDUARD
- [X] DE 3005484 A1 19800828 - LINDEN ALIMAK AB
- [X] CH 455405 A 19680715 - TOX DUEBEL WERK [DE]
- [X] FR 714997 A 19311123 - RAWLPLUG CO LTD
- [X] FR 2402059 A1 19790330 - ATLAS COPCO AB [SE]
- [X] GB 1503904 A 19780315 - FOSROC INTERNATIONAL LTD
- [X] GB 2095308 A 19820929 - WILLICH F GMBH & CO
- [X] US 4215953 A 19800805 - PERRAUD RAYMOND J [FR]
Designated contracting state (EPC)
AT CH DE FR GB IT LI SE
DOCDB simple family (publication)
WO 8404131 A1 19841025; AT E29761 T1 19871015; DE 3466268 D1 19871022; EP 0126046 A1 19841121; EP 0126046 B1 19870916; FI 83991 B 19910614; FI 83991 C 19910925; FI 844885 A0 19841211; FI 844885 L 19841211; JP S60501164 A 19850725; NO 844962 L 19841211; SE 451867 B 19871102; SE 8302025 D0 19830412; SE 8302025 L 19841013; SE 8406196 D0 19841206; SE 8406196 L 19841206
DOCDB simple family (application)
SE 8400138 W 19840412; AT 84850123 T 19840412; DE 3466268 T 19840412; EP 84850123 A 19840412; FI 844885 A 19841211; JP 50177084 A 19840412; NO 844962 A 19841211; SE 8302025 A 19830412; SE 8406196 A 19841206