E - Fixed Constructions – 02 – D
Patent
E - Fixed Constructions
02
D
E02D 3/12 (2006.01) E21B 4/14 (2006.01) E21B 7/28 (2006.01) E21B 21/12 (2006.01) E21B 33/138 (2006.01)
Patent
CA 2309674
The present invention relates to a soil consolidation apparatus, a tool and a method for soil consolidation. The tool comprises a drill string (17) of one or more drill tubes wherein a second chamber (36) for supplying grout to a jet grouting means (18) in the drill string is provided and a drilling means (16, 19) attached to one end of said drill string. The drilling means is a down-the-hole hammer (16) provided with a drill bit (19) for percussive drilling of a hole in the soil. The jet grouting means (18) is mounted in the vicinity of one end of the down-the-hole hammer (16) and comprising at least one lateral opening (40) in said drill string for jet grouting.
L'invention concerne un dispositif, un outil et un procédé servant à consolider le sol. Cet outil est composé d'un train de tiges (17) comprenant une ou plusieurs tiges et possédant une deuxième chambre (36) servant à alimenter en coulis de ciment des moyens d'injection de ciment (18), ainsi que des moyens de sondage (16, 19) fixés à une extrémité dudit train de tiges. Ces moyens de sondage consistent en un marteau (16) de fond de puits pourvu d'un trépan (19) servant à creuser par percussion un trou dans le sol. Les moyens d'injection de ciment (18) sont montés à proximité d'une extrémité du marteau (16) et comprennent au moins une ouverture latérale (40) pratiquée dans ledit train de tiges afin d'injecter le coulis de ciment.
Gowling Lafleur Henderson Llp
Sandvik Ab
Sandvik Intellectual Property Ab
LandOfFree
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