EP 0371533 A1 19900606 - Method for providing concrete foundation piles and hallow earth drill to be used for that purpose.
Title (en)
Method for providing concrete foundation piles and hallow earth drill to be used for that purpose.
Title (de)
Verfahren zum Herstellen von Grundpfählen aus Beton und hohler Grundbohrer, der dazu verwendet wird.
Title (fr)
Méthode pour réaliser des pieux de fondation en béton ainsi qu'une tarière de sol creuse, utilisée à cet effet.
Publication
Application
Priority
NL 8802944 A 19881130
Abstract (en)
The invention relates to a method for providing concrete foundation piles in the ground, whereby a tube (1) provided with a helical blade (3) on its periphery is screwed into the ground to the desired depth, after which, while the tube (1) is being withdrawn, concrete is introduced in the hole formed by means of the tube (1) through the interior of the tube (1), via a discharge opening (5) located near the bottom side of said tube (1). Use is made of a tube (1) having a constant diameter along at least substantially its entire length, whose bottom end, along which the end of the helical blade (3) extends, is conical. When the tube (1) is being withdrawn from the ground concrete is supplied under pressure and pressed out of the tube (1) via the discharge opening (5), a closing means (6) of said discharge opening (5) being opened under the influence of the pressure exerted by the concrete.
IPC 1-7
IPC 8 full level
E02D 5/38 (2006.01); E02D 5/66 (2006.01); E02D 5/72 (2006.01); E21B 10/44 (2006.01); E21B 10/60 (2006.01)
CPC (source: EP)
E02D 5/385 (2013.01); E02D 5/665 (2013.01); E02D 5/72 (2013.01); E21B 10/44 (2013.01); E21B 10/60 (2013.01)
Citation (search report)
- [AD] US 3875751 A 19750408 - PAUS KJELD F W
- [AD] FR 438488 A 19120518 - HEINRICH GASSMANN [IT]
- [A] PATENT ABSTRACTS OF JAPAN, vol. 7, no. 98 (M-210)[1243], 26th April 1983, page 52 M 210; & JP-A-58 20 819 (ENU AI TEI K.K.) 07-02-1983
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0371533 A1 19900606; EP 0371533 B1 19920311; AT E73513 T1 19920315; DE 68900977 D1 19920416; ES 2029924 T3 19921001; NL 8802944 A 19900618
DOCDB simple family (application)
EP 89202872 A 19891113; AT 89202872 T 19891113; DE 68900977 T 19891113; ES 89202872 T 19891113; NL 8802944 A 19881130