EP 1802844 B1 20090408 - METHOD FOR LAYING PIPES WITHOUT DIGGING TRENCHES
Title (en)
METHOD FOR LAYING PIPES WITHOUT DIGGING TRENCHES
Title (de)
VERFAHREN ZUM GRABENLOSEN VERLEGEN VON ROHREN
Title (fr)
PROCEDE DE POSE DE CONDUITES SANS TRANCHEE
Publication
Application
Priority
- EP 2005009397 W 20050831
- DE 102005021216 A 20050507
Abstract (en)
[origin: US2008247826A1] In a method for the trenchless laying of pipes, a drilling operation ( 5 ) is firstly carried out by means of controlled heading from a starting point ( 1 ) to a finishing point ( 6 ). Then the drilling head ( 3 ) is disconnected from the heading pipes ( 4 ) and the heading pipe run is connected by means of a special connecting pipe to the product pipe run ( 9 ), which is prefabricated above ground at the finishing point ( 6 ). Subsequently, the heading pipes ( 4 ) are drawn back from the drill hole to the starting point ( 1 ), the product pipe run ( 9 ) simultaneously being drawn into the drill hole. The method is suitable in particular for laying large-caliber, tension-resistant pressure pipelines (for example of steel or polyethylene) in soils that are not suitable, or only with reservations, for other laying methods (for example gravels, crushed stones, rock).
IPC 8 full level
CPC (source: EP US)
E21B 7/20 (2013.01 - EP US)
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
DOCDB simple family (publication)
US 2008247826 A1 20081009; US 7963722 B2 20110621; AT E428042 T1 20090415; AU 2005331728 A1 20061116; AU 2005331728 B2 20110331; CA 2604717 A1 20061116; CA 2604717 C 20130806; DE 102005021216 A1 20061109; DE 502005007055 D1 20090520; DK 1802844 T3 20090713; EP 1802844 A1 20070704; EP 1802844 B1 20090408; ES 2322485 T3 20090622; HK 1109183 A1 20080530; JP 2008540876 A 20081120; PL 1802844 T3 20090831; RU 2007145359 A 20090620; RU 2392390 C2 20100620; WO 2006119797 A1 20061116
DOCDB simple family (application)
US 91384105 A 20050831; AT 05778883 T 20050831; AU 2005331728 A 20050831; CA 2604717 A 20050831; DE 102005021216 A 20050507; DE 502005007055 T 20050831; DK 05778883 T 20050831; EP 05778883 A 20050831; EP 2005009397 W 20050831; ES 05778883 T 20050831; HK 07114255 A 20071228; JP 2008510417 A 20050831; PL 05778883 T 20050831; RU 2007145359 A 20050831