EP 1904716 A1 20080402 - UNDERGROUND CONSTRUCTION OF A PIPELINE
Title (en)
UNDERGROUND CONSTRUCTION OF A PIPELINE
Title (de)
ERSTELLUNG EINES ROHRSTRANGS IM UNTERGRUND
Title (fr)
POSE D'UNE LIGNE DE TUBES DANS LE SOUS-SOL
Publication
Application
Priority
- CH 2006000355 W 20060704
- CH 11532005 A 20050712
Abstract (en)
[origin: WO2007006165A1] The invention relates to a method for constructing a pipeline (14) extending underground (10) from pipe elements (18) adjoined to one another end to end in a soft, stony and/or rocky underground. A pressing device (24) placed in a press shaft (12) or in an intermediate press station acts upon the pipeline. Fluid-filled extendible elements (44) are placed in the gaps (70) of the pipeline (14) that are located at the ends. These elastic extendible elements (44) are removed inwardly from the gaps (70) after the pipeline (14) has been constructed. The method can also be used for adjustably lengthening the pipeline (14). After removing the extendible element (44) with a flowable, hardenable, pressure-resistant building material or with an elastic material, the gaps (70) can also be filled with a fluid-filled bag or tube.
IPC 8 full level
E21D 9/00 (2006.01)
CPC (source: EP)
E21B 7/205 (2013.01); E21D 9/005 (2013.01)
Citation (search report)
See references of WO 2007006165A1
Designated contracting state (EPC)
CH DE LI
DOCDB simple family (publication)
WO 2007006165 A1 20070118; DE 502006002514 D1 20090212; EP 1904716 A1 20080402; EP 1904716 B1 20081231
DOCDB simple family (application)
CH 2006000355 W 20060704; DE 502006002514 T 20060704; EP 06752906 A 20060704