EP 1586710 A1 20051019 - SYSTEM FOR THE CONTINUOUS EXCAVATION OF CUT-OFF WALLS
Title (en)
SYSTEM FOR THE CONTINUOUS EXCAVATION OF CUT-OFF WALLS
Title (de)
SYSTEM FÜR DEN KONTINUIERLICHEN AUSHUB VON DICHTWÄNDEN
Title (fr)
SYSTEME D'EXCAVATION CONTINUE DE MURS DE PROTECTION
Publication
Application
Priority
- ES 0300640 W 20031217
- ES 200202909 A 20021218
- ES 200302880 A 20031205
Abstract (en)
The system is based on a shovel whose jaws (3) have a system which pushes the material towards a loading chamber (4) with no-return gates (5), wherein a pressure filter effect is produced, separating the liquids and the bentonite mud using filtering zones. The compressed material, free of liquid and mud, ascends to a continuous transporting means comprising a loading chamber (10) of variable volume, actuated by hydraulic cylinders (11'), with lower gates (12) and upper gates (12') which "pump" the material towards an evacuation pipe (13) which extends up to the surface. The system provides for the evacuation, extraction and unloading of the material to the surface, in a completely continuous way, without the need to interrupt the excavation for extraction with the jaws (3), which is what is conventionally done. In addition, the material extracted is also compacted and perfectly inert for the purposes of dumping and poses no danger from an environmental point of view. <IMAGE>
IPC 1-7
IPC 8 full level
E02D 17/13 (2006.01); E02F 3/413 (2006.01)
CPC (source: EP)
E02D 17/13 (2013.01); E02F 3/4138 (2013.01)
Citation (search report)
See references of WO 2004055275A1
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)
DOCDB simple family (application)
EP 03785963 A 20031217; ES 0300640 W 20031217