EP 0539630 A1 19930505 - Method of providing a foundation pile with enlarged base in the ground.
Title (en)
Method of providing a foundation pile with enlarged base in the ground.
Title (de)
Verfahren zur Herstellung von Gründungspfählen mit vergrösserter Basis im Boden.
Title (fr)
Méthode pour réaliser des pieux de fondation à base élargie dans le sol.
Publication
Application
Priority
EP 91202837 A 19911031
Abstract (en)
A metal drill pipe fitted with a drill head at the lower end thereof is introduced into the ground under axial pressure while being rotated and during rotation of the drill pipe a hardening mass is supplied via an injection tube mounted within the drill pipe to an outlet opening provided at the tip of the drill head at a pressure above the hydrostatic pressure, the hardening mass mixing intensively with the soil mass stirred by the drill head. According to he invention, the hardening mass is supplied to the outlet opening (4) at such a pressure that it forms a bearing zone (9) around the foundation pile (1) of a diameter greater than the diameter of the drill head (2). <IMAGE>
IPC 1-7
IPC 8 full level
E02D 3/12 (2006.01); E02D 5/44 (2006.01); E02D 5/62 (2006.01)
CPC (source: EP)
E02D 3/126 (2013.01); E02D 5/44 (2013.01); E02D 5/62 (2013.01)
Citation (search report)
- [X] WO 8903458 A1 19890420 - CRAMBES MICHEL [FR]
- [A] US 3802203 A 19740409 - ICHISE Y, et al
- [A] WO 8603533 A1 19860619 - CRAMBES MICHEL
Designated contracting state (EPC)
BE DE FR IT NL
DOCDB simple family (publication)
DOCDB simple family (application)
EP 91202837 A 19911031