EP 3673116 A1 20200701 - METHOD AND FACILITY FOR CONCRETING AN UNDERGROUND SITE
Title (en)
METHOD AND FACILITY FOR CONCRETING AN UNDERGROUND SITE
Title (de)
VERFAHREN UND ANLAGE ZUM BETONIEREN EINER UNTERIRDISCHEN STELLE
Title (fr)
PROCÉDÉ ET INSTALLATION DE BÉTONNAGE D'UN SITE SOUTERRAIN
Publication
Application
Priority
- FR 1757806 A 20170822
- EP 2018069368 W 20180717
Abstract (en)
[origin: WO2019037958A1] The invention relates to: - a method for concreting an underground site comprising the vertical routing of concrete (B) from a feeding site located at a higher altitude than the underground site towards the underground site by continuous feeding of concrete from a tube (A) for routing between the feeding site and the underground site, lowering a concrete column into the routing tube and collecting the concrete from a lower end of said concrete column to distribute the concrete in the underground site, characterised in that the routing tube is initially filled with a column of liquid (L) and a mobile shutter (1) positioned at the top of the liquid column, followed by exerting, during the lowering of the concrete column into the routing tube, a vertical counter-push on said shutter by adjusting the height of the column of liquid and/or the pressure of the liquid in the routing tube with a view to controlling the lowering of the concrete column; and - a facility for concreting an underground site located at great depth.
IPC 8 full level
E02D 15/04 (2006.01); E04G 21/04 (2006.01); G21F 9/28 (2006.01)
CPC (source: EP)
E02D 15/04 (2013.01); G21F 9/28 (2013.01); G21F 9/304 (2013.01)
Citation (search report)
See references of WO 2019037958A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2019037958 A1 20190228; CN 110998031 A 20200410; CN 110998031 B 20211210; EP 3673116 A1 20200701; EP 3673116 B1 20210804; FR 3070416 A1 20190301; FR 3070416 B1 20200110
DOCDB simple family (application)
EP 2018069368 W 20180717; CN 201880054659 A 20180717; EP 18742775 A 20180717; FR 1757806 A 20170822