EP 1757771 A2 20070228 - Method for consolidating and impermeabilizing the ground around a tunnel
Title (en)
Method for consolidating and impermeabilizing the ground around a tunnel
Title (de)
Verfahren zur Konsolidierung und Wasserabdichtung des Bodens um einen Tunnel
Title (fr)
Procédé pour consolider et imperméabiliser le sol autour d'un tunnel
Publication
Application
Priority
IT TO20050586 A 20050823
Abstract (en)
A set of primary blocks of artificial conglomerate (10, 11) spaced apart from each other around the portion of ground (T) which has to be excavated is formed using jet grouting techniques in a vertical plane transverse to the axis of the tunnel which has to be excavated. A set of infill blocks of artificial conglomerate (20, 21) each located between two consecutive primary blocks in order to firmly connect them together is then formed. Each infill block has an outer portion (22) which extends over the outer surfaces (13-16) of two consecutive primary blocks (10, 11). A continuous closed ring structure is thus obtained. By repeating these operations alongside the structure already formed, a continuous tubular structure of artificial conglomerate is obtained.
IPC 8 full level
CPC (source: EP)
E02D 3/12 (2013.01); E21D 9/001 (2013.01)
Citation (applicant)
JP H10205274 A 19980804 - MAEDA CONSTRUCTION
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1757771 A2 20070228; EP 1757771 A3 20071024; EP 1757771 B1 20100421; AT E465324 T1 20100515; DE 602006013757 D1 20100602; IT TO20050586 A1 20070224
DOCDB simple family (application)
EP 06119250 A 20060821; AT 06119250 T 20060821; DE 602006013757 T 20060821; IT TO20050586 A 20050823