EP 3194722 A1 20170726 - METHOD AND INSTALLATION FOR MECHANICAL EXCAVATION OF A CROSS PASSAGE BETWEEN TWO TRAFFIC TUNNELS OR BETWEEN TWO VERTICAL WELLS
Title (en)
METHOD AND INSTALLATION FOR MECHANICAL EXCAVATION OF A CROSS PASSAGE BETWEEN TWO TRAFFIC TUNNELS OR BETWEEN TWO VERTICAL WELLS
Title (de)
VERFAHREN UND ANLAGE ZUR MECHANISCHEN AUSHEBUNG EINES QUERSCHLAGS ZWISCHEN ZWEI VERKEHRSTUNNELN ODER ZWISCHEN ZWEI VERTIKALEN BOHRLÖCHERN
Title (fr)
PROCÉDÉ ET INSTALLATION DE CREUSEMENT MÉCANISÉ D'UN RAMEAU DE COMMUNICATION ENTRE DEUX TUNNELS DE CIRCULATION OU ENTRE DEUX PUITS VERTICAUX
Publication
Application
Priority
- FR 1458627 A 20140915
- EP 2015070822 W 20150911
Abstract (en)
[origin: WO2016041858A1] The present invention relates, in particular, to a method for mechanical excavation of a cross passage (6) between two traffic tunnels (1, 2) or between two vertical wells, characterized by the fact that it comprises a series of steps as follows: i/ a first section (6a) of metal tube equipped with a cutting lip, the internal diameter of said tube being equal to the internal diameter of said cross passage (6), is driven forward from a first (1; 2) of said two tunnels (1, 2) or wells, in the direction of said second tunnel (2; 1) or well; ii/ a second section (6b), having the same diameter, is placed behind said first section (6a) of tube and in extension thereof, and said two sections (6a, 6b) are driven forward together; iii/ operation ii/ is repeated as required; said tube sections (6a, 6b, 6c) being left in place and the materials contained in the tube being evacuated later.
IPC 8 full level
E21B 7/20 (2006.01); E21D 9/00 (2006.01); E21D 9/06 (2006.01); E21D 11/38 (2006.01)
CPC (source: EP)
E21B 7/205 (2013.01); E21D 9/005 (2013.01); E21D 9/008 (2016.01); E21D 9/0692 (2013.01); E21D 11/38 (2013.01)
Citation (search report)
See references of WO 2016041858A1
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)
FR 3025829 A1 20160318; FR 3025829 B1 20200508; AU 2015317071 A1 20170427; EP 3194722 A1 20170726; WO 2016041858 A1 20160324
DOCDB simple family (application)
FR 1458627 A 20140915; AU 2015317071 A 20150911; EP 15767450 A 20150911; EP 2015070822 W 20150911