EP 2496786 B1 20130918 - METHOD FOR THE DRILLING, IN PARTICULAR PERCUSSION OR ROTARY PERCUSSION DRILLING, OF HOLES IN SOIL OR ROCK MATERIAL AND DEVICE THEREFOR
Title (en)
METHOD FOR THE DRILLING, IN PARTICULAR PERCUSSION OR ROTARY PERCUSSION DRILLING, OF HOLES IN SOIL OR ROCK MATERIAL AND DEVICE THEREFOR
Title (de)
VERFAHREN ZUM BOHREN, INSBESONDERE SCHLAG- ODER DREHSCHLAGBOHREN VON LÖCHERN IN BODEN ODER GESTEINSMATERIAL SOWIE VORRICHTUNG HIERFÜR
Title (fr)
PROCÉDÉ DE FORAGE, EN PARTICULIER DE FORAGE PAR PERCUSSION OU PAR ROTOPERCUSSION POUR CREUSER DES TROUS DANS LE SOL OU DANS DES ROCHES ET DISPOSITIF ASSOCIÉ
Publication
Application
Priority
- AT 17632009 A 20091106
- AT 2010000422 W 20101105
Abstract (en)
[origin: WO2011054020A2] In a method for the drilling, in particular percussion or rotary percussion drilling, of holes in soil or rock material, wherein a borehole is formed by a drill bit (2) mounted on a drill string (4) by means of a percussive and/or rotational movement, a casing (5) adjoining the drill bit (2) is introduced into the borehole by being pulled and/or struck and material that is removed is introduced into the annular space formed between the outer circumference of the drill string (4) and the inner circumference of the casing (5) via at least one through-opening (11), formed between the drill bit (2) and the casing (5), and is discharged from the borehole; the impact energy of the drill string (4) is applied to the drill bit (2) via an adapter (3) interacting with the drill bit (2) and the drill string (4) and the impact energy is applied to the drill bit (2) at least partially via an impact shoulder (13) of the adapter (3) and at least partially via a threaded connection (9) between the adapter (3) and the drill bit (2). A device for carrying out this method is also described.
IPC 8 full level
E21B 17/042 (2006.01); E21B 7/20 (2006.01); E21D 21/00 (2006.01)
CPC (source: EP US)
E21B 7/20 (2013.01 - EP US); E21B 10/36 (2013.01 - EP US); E21B 17/0426 (2013.01 - EP US); E21D 21/0033 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2011054020 A2 20110512; WO 2011054020 A3 20111027; AT 508991 A1 20110515; AT 508991 B1 20120915; AU 2010314788 A1 20120614; CA 2791524 A1 20110512; EP 2496786 A2 20120912; EP 2496786 B1 20130918; ES 2440071 T3 20140127; PL 2496786 T3 20140228; US 2012247835 A1 20121004
DOCDB simple family (application)
AT 2010000422 W 20101105; AT 17632009 A 20091106; AU 2010314788 A 20101105; CA 2791524 A 20101105; EP 10787258 A 20101105; ES 10787258 T 20101105; PL 10787258 T 20101105; US 201013514211 A 20101105