EP 0398838 B1 19931215 - Injection tube with anchor effect.
Title (en)
Injection tube with anchor effect.
Title (de)
Injektionsrohr mit Ankerwirkung.
Title (fr)
Tuyau d'injection avec effet d'ancrage.
Publication
Application
Priority
DE 8906126 U 19890518
Abstract (en)
[origin: EP0398838A1] Injection tubes are used for injecting media, such as, for example, synthetic resin, suitable in particular for rock consolidation. An injection tube essentially consists of a tube which can be inserted into a borehole and is provided with a borehole closure as well as a non-return valve. To subsequently use the injection tube as an anchor, provision is made for the tube to be designed as an anchor rod (1) with a thread (2) rolled onto the end located outside the borehole, for a non-return valve (4) to be arranged in the injection head (3) and for a bursting disc (5) to be arranged on the end of the anchor rod (1) directed towards the bottom of the borehole, and for the borehole closure (6) to be designed as an inflatable flexible tubing section (8) which surrounds the anchor rod (1), is held at the ends by bindings (7) and has a non-return valve (10) integrated between anchor rod (1) and inflation space (9). <IMAGE>
IPC 1-7
IPC 8 full level
E02D 5/76 (2006.01); E21B 33/127 (2006.01); E21B 33/13 (2006.01); E21B 34/06 (2006.01); E21D 9/00 (2006.01); E21D 20/02 (2006.01)
CPC (source: EP)
E02D 5/76 (2013.01); E21B 33/127 (2013.01); E21B 34/06 (2013.01); E21D 9/001 (2013.01); E21D 20/02 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI SE
DOCDB simple family (publication)
EP 0398838 A1 19901122; EP 0398838 B1 19931215; AT E98742 T1 19940115; AU 5466290 A 19901122; AU 628540 B2 19920917; DE 59003840 D1 19940127; DE 8906126 U1 19900419
DOCDB simple family (application)
EP 90630104 A 19900510; AT 90630104 T 19900510; AU 5466290 A 19900503; DE 59003840 T 19900510; DE 8906126 U 19890518