EP 1564369 B1 20071212 - Method and device for stabilising an underground broken out cavity
Title (en)
Method and device for stabilising an underground broken out cavity
Title (de)
Verfahren und Einrichtung zum Stabilisieren eines beim Untertagebau ausgebrochenen Hohlraumes
Title (fr)
Procédé et appareil pour stabiliser une cavité souterraine éclaté
Publication
Application
Priority
EP 04405086 A 20040216
Abstract (en)
[origin: EP1564369A1] Process for stabilizing a hollow chamber (4) formed during mining comprises using an upsetting body (7) formed as an upsetting element containing particles, preferably expanded glass or plastic particles, embedded in a binder, preferably cement or plastic, and reinforcing elements made from steel, plastic or glass. An independent claim is also included for a device for stabilizing a hollow chamber formed during mining. Preferred Features: The upsetting body has a compression strength of at least 1 MPa and a hollow chamber amount of 10-90 % of the total volume. The reinforcing elements are steel fibers.
IPC 8 full level
E21D 11/04 (2006.01); E21D 11/05 (2006.01); E21D 11/00 (2006.01); E21D 11/08 (2006.01); E21D 21/00 (2006.01)
CPC (source: EP US)
E21D 11/05 (2013.01 - EP US); E21D 11/083 (2013.01 - EP US); E21D 21/0086 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1564369 A1 20050817; EP 1564369 B1 20071212; AT E380925 T1 20071215; DE 502004005697 D1 20080124; ES 2297363 T3 20080501; JP 2005232958 A 20050902; JP 3977843 B2 20070919; US 2005191138 A1 20050901; US 7404694 B2 20080729
DOCDB simple family (application)
EP 04405086 A 20040216; AT 04405086 T 20040216; DE 502004005697 T 20040216; ES 04405086 T 20040216; JP 2005037880 A 20050215; US 5222105 A 20050208