EP 0631032 B1 19990324 - Whole front face tunneling machine
Title (en)
Whole front face tunneling machine
Title (de)
Vollfrontseiten-Vortriebsmaschine
Title (fr)
Tunnelier à creusement frontal pleine section
Publication
Application
Priority
FR 9307145 A 19930614
Abstract (en)
[origin: EP0631032A1] The present invention relates to a directable-shield tunnelling machine, for whole front face tunnelling. This tunnelling machine comprises a substantially cylindrical body (1), a peripheral cutting edge (110) inside which an extracting shield (130) is rotationally mounted, as well as a system (4) for removing debris via the rear end (12) of the body, is characterised in that the shield (130) comprises at least one opening (161-168) emerging in front of a work-face (F) of a gallery (G) to be tunnelled, and capable of being closed by at least one flap (141-148) capable of pivoting about a radial axis of the body (1) under the effect of one or more jacks (5) or the like, each flap being capable of being fitted with extraction tools (14) so that the area of the said opening (161-168) and/or the extraction angle of the tools (14) can be adjusted under the effect of pivoting of the flaps (141-148). The present invention applies to the production of tunnelling machines of various sizes and for various types of galleries or tunnels. <IMAGE>
IPC 1-7
IPC 8 full level
E21D 9/08 (2006.01); E21D 9/087 (2006.01)
CPC (source: EP)
E21D 9/0879 (2016.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0631032 A1 19941228; EP 0631032 B1 19990324; AT E178120 T1 19990415; DE 69417294 D1 19990429; FR 2706527 A1 19941223; FR 2706527 B1 19960105
DOCDB simple family (application)
EP 94401323 A 19940613; AT 94401323 T 19940613; DE 69417294 T 19940613; FR 9307145 A 19930614