EP2496786B1 - 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 - Google Patents

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 Download PDF

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Publication number
EP2496786B1
EP2496786B1 EP10787258.2A EP10787258A EP2496786B1 EP 2496786 B1 EP2496786 B1 EP 2496786B1 EP 10787258 A EP10787258 A EP 10787258A EP 2496786 B1 EP2496786 B1 EP 2496786B1
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EP
European Patent Office
Prior art keywords
drill bit
adapter
borehole
drilling
drill
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP10787258.2A
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German (de)
English (en)
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EP2496786A2 (fr
Inventor
Karl BÖHM
Walter Karpellus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dywidag Systems International GmbH Austria
Original Assignee
Dywidag Systems International GmbH Austria
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dywidag Systems International GmbH Austria filed Critical Dywidag Systems International GmbH Austria
Priority to PL10787258T priority Critical patent/PL2496786T3/pl
Publication of EP2496786A2 publication Critical patent/EP2496786A2/fr
Application granted granted Critical
Publication of EP2496786B1 publication Critical patent/EP2496786B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/0033—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts having a jacket or outer tube
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042—Threaded
    • E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes

Definitions

  • the present invention relates to methods for drilling, in particular impact or rotational impact drilling holes in soil or rock material, wherein a borehole is formed by a drill bit mounted on a drill string by a striking and / or rotating movement, a cladding tube adjoining the drill bit Pulling and / or hitting is introduced into the borehole and mined material is introduced via at least one passage opening formed between the drill bit and the cladding tube into the annular space formed between the outer circumference of the drill string and the inner circumference of the cladding tube and discharged from the borehole.
  • the invention relates to a device for drilling, in particular impact or rotary impact drilling holes in soil or rock material, wherein formed by a drill bit mounted on a drill bit by a beating and / or rotating movement a borehole, a subsequent to the drill bit sheath Pulling and / or beating can be introduced into the borehole and mined material can be introduced via at least one through-bore formed between the drill bit and the cladding tube into the annular space formed between the outer circumference of the drill string and the inner circumference of the cladding tube and can be brought out of the drilled hole.
  • a percussion or rotary impact drilling is by means of a drill string mounted on a drill bit, wherein moreover a jacket or sheath into the well for an optionally required further lining, or to a breaking material
  • the impact energy is either applied directly to the drill bit via the drill string or through complicated devices such as slippers.
  • the EP 1 818 499 A1 relates to a device for the simultaneous drilling and lining of boreholes, in which a drill bit is connected to an adapter, which adapter is further connected to a drill string.
  • a tubular surrounding the drill pipe is provided, which is introduced by being hammered by the adapter simultaneously with the formation of the borehole in the borehole.
  • an adapter is used in this case, which partially transfers the impact energy to the drill bit and partially on the cladding tube.
  • the GB 1,068,638 describes a drilling device consisting of a central drill bit and a ring bit, wherein on the ring bit detachably a cladding tube is hinged, which has such a coupling that the impact energy introduced via the drill string is partially applied to the central bit and partially to the ring bit.
  • the present invention now aims to develop a method and a device of the type mentioned in that adaptation to a variety of subsoil conditions is possible quickly and reliably and that any combinations of the elements used when drilling holes in soil or rock directly can be assembled and used on site in accordance with the requirements. Furthermore, it is an object of the invention to minimize the number of different prefabricated holes drilling apparatuses.
  • a method of the type mentioned is essentially characterized in that the impact energy of the drill string is applied via a cooperating with the drill bit and the drill string adapter to the drill bit and that the impact energy at least partially on a hitting the adapter and at least partially is applied to the drill bit via a threaded connection between adapter and drill bit.
  • the method according to the invention is preferably guided such that the adapter is coupled to the drill bit by screwing via a coarse thread connection.
  • the adapter is coupled to the drill bit by screwing via a coarse screw connection.
  • the method according to the invention is preferably developed in such a way that that the adapter with the drill string by screwing over a thread, in particular a relation to the threaded connection between the drill bit and adapter lower pitch exhibiting thread is coupled.
  • the method according to the invention is preferably developed in such a way that flushing liquid is discharged through the tubular adapter and cooperating openings in the drill bit during drilling.
  • the invention is further developed such that rinsing liquid is applied intermittently via an adapter arranged in the intervention rinsing valve during engagement of the drill bit in the soil or rock material.
  • the inventive method is preferably developed to the effect that the impact energy in addition at least partially trained on the drill bit on the shoulder Cladding tube is applied.
  • part of the impact energy is additionally applied to the cladding tube via a striking shoulder formed on the drill bit, ensuring reliable and reliable pulling of the cladding tube into the interior of the borehole.
  • a device for drilling, in particular impact or rotary impact drilling of soil or rock material of the type mentioned above essentially characterized in that a cooperating with the drill pipe and the drill bit adapter is provided and that the adapter via a striking shoulder of the Adapters and a threaded connection between the adapter and drill bit with the drill bit cooperates.
  • the drill bit and drill string can be arbitrarily selected to suit the requirements of forming a hole in the soil and rock material and combining the respective suitable elements.
  • the adapter By forming the adapter so that the adapter interacts with the drill bit via a shoulder of the adapter and via a threaded connection between the adapter and the drill bit, it is ensured that, on the one hand, the drilling energy is reliably and reliably transmitted to the drill bit, and on the other hand, that the vulnerable for a knocking or damaging threaded connection between the adapter and drill bit is claimed as little as possible.
  • Such a threaded connection can be formed, for example, as a helical thread connection with two gears, with which both a secure and reliable hold of the adapter in the drill bit can be ensured and on the other hand, an intentional release of the adapter can be achieved from the drill bit.
  • the device is designed so that the adapter with the drill string via another thread, which has a deviating from the threaded connection between the adapter and drill bit pitch of the thread, in particular a smaller pitch, coupled, it is possible to withhold accidental release of the adapter from the drill pipe both during the drilling process and when unscrewing the adapter from the drill bit with certainty. Furthermore, it is ensured with such a design that at least the drill pipe and the adapter can be recovered undamaged at the end of the drilling process, whereby a not insignificant cost savings can be achieved.
  • the device is designed so that the end face of the adapter facing the well bore is at least partially beveled, it succeeds, the adapter coupled to the drill string, especially if maintenance during the formation of the well are required to safely insert together with the drill string in the drill bit and to screw with this, so that even for example in semi-finished holes adaptation work on the linkage can be made.
  • the invention is preferably further developed such that the tubular adapter is formed with a bore hole interior facing passage for rinsing liquid and that the passage opening cooperates with openings for dispensing rinsing fluid in the drill bit.
  • rinsing liquid is introduced into the rinsing holes formed in the drill bit through the hollow adapter and is available in the interior of the borehole for the drilling operation and optionally in the annular space between drill bit and cladding tube, so that on the one hand the removal of the cuttings by trained in the drill bit in a conventional manner Openings or recesses is made and on the other hand, a laying of the openings for both the rinsing liquid and for the removal of cuttings in the drill bit or, where appropriate, the annulus or annular gap is prevented.
  • the device is designed so that an intervention-controlled flush valve is provided in the adapter.
  • an intervention-controlled flushing valve in the adapter, a controlled discharge of flushing liquid through the adapter and through the flushing holes formed in the drill bit succeeds, whereby on the one hand only those quantities of flushing liquid are discharged which are required for a proper removal of the cuttings and, on the other hand, an installation the openings, in particular the flushing opening with cuttings is held back.
  • the intervention-controlled flushing valve can be formed via a pressure switch or a pressure valve formed in the above-described annular space.
  • the device according to the invention is further developed such that the drill bit at least one impact shoulder for cooperation with the Cladding tube, in particular for impact stress of the cladding tube has.
  • the cladding tube is formed so that it is thickened at its end facing the inside of the bore hole and that the thickening is formed at its end remote from the bore hole complementary to a shoulder of the drill bit, is through a co-operation of the complementarily shaped impact shoulder of the drill bit with the thickened region of the cladding tube ensures reliable impact or introduction of the cladding tube into the drilled hole.
  • any cladding tube which appears suitable for the expected drilling process, for example, an expandable cladding tube at an end region of a drill bit facing away from the bore hole inside are arranged and are determined by pressing on the drill bit, in particular in such a way that the cladding tube along the drill bit is longitudinally displaceable permanently connected to the drill bit. Since the thickening of the cladding tube at its end region facing away from the bore hole inside the borehole, in particular during the impact stress, comes into contact with the impact shoulder of the drill bit, a reliable pulling of the cladding tube into the drilled hole is ensured.
  • the device is developed so that the end of the cladding tube facing the well inside is formed with a recess, in particular an asymmetrically formed recess, the drill bit can be dropped from the cladding tube, creating a separation can be achieved by the drill bit and cladding tube and, for example, in the case of a shared drill bit at least a portion of the drill bit after completion of the drilling process is recoverable together with the drill pipe and the adapter from the well.
  • a generally designated 1 device for drilling or rotary drilling holes in soil or rock material has a drill bit indicated schematically with 2, which via an adapter 3 with a in Fig. 1 schematically indicated drill pipe 4 is connected.
  • the drill bit 2 is adjoined by a cladding tube 5, whose end region 6 facing the bore hole interior has an enlarged thickness relative to the area of the cladding tube 5 facing the borehole exterior.
  • This end region 6 is beveled at its end region 7 facing away from the bore hole inside and formed complementarily in the shape of a striking shoulder 8 of the drill bit 2.
  • the drill bit 2 is connected to the adapter 3 with a thread schematically indicated by 9, wherein over the borehole facing the end of the adapter 3 and the drill bit 2, an annular space 10 is formed, through which annular space 10 rinsing liquid, which by a hollow inside trained adapter 3 provided rinsing liquid channel 11 and provided in the drill bit 2 holes 12 for the passage of rinsing liquid to the interior of the wellbore is ausbringbar.
  • the over the drill pipe 4 applied to the adapter 3 drilling energy is in accordance with the training Fig. 1
  • Such a design ensures that the thread 9 is not excessively stressed during the drilling process and in particular is not knocked out, so that after the end of the drilling process a safe and reliable separation of the adapter 3 is made possible by the drill bit 2.
  • drill bit 2 is in this case a conventional one-piece drill bit, which has a plurality of drill pins 14 and in addition to the openings, the dispensing of rinsing fluid 12 recesses 15, over which cuttings formed by between the cladding tube 5 and the drill bit 2 recesses 16 in between the adapter 3 and the drill pipe 4 and the cladding tube 5 formed annular space 17 are introduced can and can be discharged in the sequence on the outside of the borehole.
  • the drill bit 2 In order to hold back laying of the annular space 17 with cuttings, the drill bit 2 also has a backward flushing channel 27, through which the annular space 17 can be sufficiently rinsed.
  • Fig. 2 In the presentation according to Fig. 2 are the reference numerals of Fig. 1 retained, where in the representation of Fig. 2 it can be seen that the cladding tube 5 at its the bore hole facing inner end portion 6 has a relation to the borehole outer facing area reduced diameter, which diameter reduction can be achieved in a simple manner by pressing the cladding tube 5 on a drill bit 2, so that before the start of a drilling operation Any combination of drill bit 2, adapter 3, drill pipe 4 and sheath 5 can be put together depending on the expected requirements, whereby an extremely simple and inexpensive variant of a device for drilling holes in soil and rock material can be achieved.
  • the cladding tube 5 in this variant can be any cladding tube, as used during drilling holes in soil and rock material used, such as a frictionally introduced cladding tube, expandable cladding tube, drainage tube or even a example certain mobility of the individual forming the cladding tube segments exhibiting cladding tube, which can follow to a certain extent deviations from the direction of the bore.
  • the drill bit 2 used in this context may deviate from the illustrations according to Fig. 1 and Fig. 2 be selected arbitrarily, in addition to a one-piece drill bit a multi-part drill bit, from which after completion of the drilling process, for example, only a part remains inside the well, an asymmetrically shaped drill bit and a drill bit, which instead of drilling pins cutting can be used.
  • Fig. 2 is further schematically at the top of the bore hole facing the edge 18 of the cladding tube 5 an asymmetrically formed recess 19 recognizable, which recess 19 has a vertical or steep side wall 26 and a second cheek 20 low pitch, with such a depression, for example, the discarding the drill bit 2 is possible after completion of the drilling process.
  • Fig. 3 is a variant of the adapter 3 of Fig. 1 shown, wherein the adapter in turn on the one hand a thread 9 at its end, which is to be coupled with a drill bit 2 has.
  • the thread 9 of the adapter 3 is in this case designed as a coarse thread with two courses, on the one hand to ensure a secure and reliable connection of the adapter 3 with the drill bit 2 during the drilling process and on the other hand to be able to solve the adapter 3 of the drill bit 2 so after completion of the drilling process in that the connection between the drill bit 2 and the adapter is that connection of the entire apparatus 1 for drilling holes in soil or rock material which first comes loose under appropriate stress.
  • a further thread 21 is provided in the interior of the hollow adapter 3 at its borehole outer facing region for connection to a drill pipe 4, wherein the thread 21 in comparison with the thread 9 on the one hand significantly more courses and on the other hand has a significantly low pitch to withstand accidental release of the connection of the adapter 3 with the drill string, in particular after completion of the drilling operation with certainty.
  • the hitting shoulder 13 of the adapter 3 is different from the illustration according to Fig. 1 bevelled trained in order to apply the impact energy even better on the drill bit 2, in particular, in a beveled design of the striking shoulder 13, the wear of the striking shoulder 13 is significantly reduced.
  • the borehole interior facing end portion 22 of the adapter 3 is provided with bevels 23 to facilitate insertion or threading of the adapter 3 in a drill bit 2, which is particularly advantageous when replacing the drill string during the drilling process.
  • the adapter 3 has a coarse thread 9 for the insertion of the adapter 3 in a drill bit 2, as well as another thread 21, which has a relation to the thread 9 significantly reduced pitch and a significantly increased number of courses.
  • the hitting shoulder 13 is beveled and formed a chamfer 23 on the end face 22 of the adapter 3, which faces the bore hole inside.
  • a pressure switch 24 is provided on the end surface 22, via which pressure switch 24 an intermittently openable valve 25, which is indicated schematically in the passage 11 for dispensing rinsing liquid, is provided.
  • the pressure switch 24 is actuated by the pressurization in that beating process, whereupon the valve 25 is opened and rinsing liquid is discharged either directly through holes provided in the drill bit for rinsing liquid 12, or via the annular space provided between the drill bit 2 and the adapter 3 10 and the opening for flushing fluid 12 is discharged to the well interior.
  • Such training ensures that excessive flushing fluid usage is avoided during the drilling operation, while ensuring that the normally small orifices for drilling fluid in the drill bit are not misplaced during drilling with cuttings.
  • Fig. 5 is a section, in particular a longitudinal section through the end of the bore hole facing an end of a cladding tube 5, in turn, the end of the bore hole facing the inner end portion 6 of the cladding tube 5 is formed thickened.
  • a shoulder 7, for cooperation with a shoulder 8 of a drill bit 2 is formed in order to move the cladding tube 5 into the borehole interior.
  • the recess 19 is shown on the side facing the bore hole interior edge region 18 of the cladding tube 5, wherein the side cheek 20 of the recess 19 is formed such that it extends to the edge 18 with a slight slope.
  • the second side cheek 26 of the recess 19 is in this case formed normally on the edge 18, with which variant manages to throw off a drill bit 2 after completion of the drilling operation by a slight rotation of the cladding tube 5, either at least partially recover the drill bit 2 or the drilling process without to continue a carried-over cladding tube 5.
  • the cladding tube 5 is pressed onto the drill bit 2 that it is slidably mounted in the longitudinal direction of the drill bit 2, in addition, if necessary, from the Bohrlochoteren on the cladding tube 5 a striking energy are applied to the addition of the Hüllrohrs 5 on the coupling between the hitting shoulder 8, the drill bit 2 and the shoulder 7 of the cladding tube 5 also allow a wrapping of the cladding tube 5.
  • Such wrapping of the cladding tube 5 may be required in certain cases, such as when the passage gap 16 between drill bit 2 and cladding tube is laid by cuttings or further entrainment of the cladding tube 5 with the drill bit 2 due to broken material, which the space between the edge 18 of the cladding tube 5 and a corresponding to the cladding tube 5 superior or with this flush final area of the drill bit 2 to eliminate.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)

Claims (15)

  1. Procédé de forage, en particulier de forage par percussion ou par roto-percussion, de trous dans du sol ou des roches, un trou de sonde étant formé par un trépan (2), monté sur une tige de forage (4), par un mouvement de percussion et/ou de rotation, une chemise (5), raccordée au trépan (2), étant introduite dans le trou de sonde par traction et/ou percussion et des débris rocheux étant introduits, par l'intermédiaire d'au moins une ouverture de passage réalisée entre le trépan (2) et la chemise (5), dans l'espace annulaire formé entre le pourtour extérieur de la tige de forage (4) et le pourtour intérieur de la chemise (5) et étant évacués du trou de sonde, caractérisé en ce que l'énergie de percussion de la tige de forage (4) est appliquée au trépan (2) par l'intermédiaire d'un adaptateur (3), qui coopère avec le trépan (2) et la tige de forage (4), et que l'énergie de percussion est appliquée sur le trépan (2), au moins en partie par l'intermédiaire d'un épaulement de battage (13) de l'adaptateur, et au moins en partie par l'intermédiaire d'un assemblage par filetage entre l'adaptateur (3) et le trépan (2).
  2. Procédé selon la revendication 1, caractérisé en ce que l'adaptateur est couplé au trépan (2) par un vissage, par l'intermédiaire d'un assemblage par filetage à pas rapide (9).
  3. Procédé selon l'une des revendications 1 et 2, caractérisé en ce que l'adaptateur (3) est couplé à la tige de forage (4) par un vissage par l'intermédiaire d'un filetage (21), en particulier un filetage présentant un pas plus petit que celui de l'assemblage par filetage (9) entre le trépan (2) et l'adaptateur (3).
  4. Procédé selon l'une des revendications 1, 2 et 3, caractérisé en ce que le fluide de forage est évacué pendant le forage au travers de l'adaptateur (3) de réalisation tubulaire, et d'ouvertures (12, 27), coopérant avec ce dernier, dans le trépan (2).
  5. Procédé selon la revendication 4, caractérisé en ce que le fluide de forage est évacué par intermittence par l'intermédiaire d'une vanne de purge (25) pilotée, montée dans l'adaptateur (3), pendant une attaque du trépan (2) dans le sol ou des roches.
  6. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que l'énergie de percussion est appliquée en supplément sur la chemise (5), au moins en partie, par l'intermédiaire d'un épaulement de battage (8) réalisé sur le trépan (2).
  7. Dispositif de forage, en particulier de forage par percussion ou par roto-percussion, de trous dans du sol ou des roches, un trou de sonde étant formé par un trépan (2), monté sur une tige de forage (4), par un mouvement de percussion et/ou de rotation, une chemise (5), raccordée au trépan (2), pouvant être introduite dans le trou de sonde par traction et/ou percussion et des débris rocheux pouvant être introduits, par l'intermédiaire d'au moins une ouverture de passage réalisée entre le trépan (2) et la chemise (5), dans un espace annulaire formé entre le pourtour extérieur de la tige de forage (4) et le pourtour intérieur de la chemise (5) et pouvant être évacués du trou de sonde, caractérisé en ce qu'il est prévu un adaptateur (3), qui coopère avec la tige de forage (4) et le trépan (2), et que l'adaptateur (3) coopère avec le trépan par l'intermédiaire d'un épaulement de battage (13) de l'adaptateur (3) et d'un assemblage par filetage (9) entre l'adaptateur (3) et le trépan (2).
  8. Dispositif selon la revendication 7, caractérisé en ce que l'adaptateur (3) est couplé au trépan (2) par l'intermédiaire d'un assemblage par filetage à pas rapide (9).
  9. Dispositif selon l'une des revendications 7 et 8, caractérisé en ce que l'adaptateur (3) est couplé à la tige de forage (4) par l'intermédiaire d'un autre filetage (21), qui présente un pas de filetage différent de l'assemblage par filetage (9) entre l'adaptateur (3) et le trépan (2), en particulier un pas plus petit.
  10. Dispositif selon l'une des revendications, 7, 8 et 9, caractérisé en ce que la surface d'extrémité (21) de l'adaptateur (3), orientée en direction du trou de sonde, a une réalisation au moins en partie chanfreinée (23).
  11. Dispositif selon l'une des revendications 7 à 10, caractérisé en ce que l'adaptateur (3) tubulaire est réalisé avec une ouverture de passage (11) pour du fluide de forage, tournée vers l'intérieur du trou de sonde, et que l'ouverture de passage (11) coopère avec des ouvertures (12, 27) pour l'évacuation du fluide de forage dans le trépan (2).
  12. Dispositif selon l'une des revendications 7 à 11, caractérisé en ce qu'une vanne de purge (24, 25) pilotée en attaque est prévue dans l'adaptateur (3).
  13. Dispositif selon l'une des revendications 7 à 12, caractérisé en ce que le trépan (2) présente au moins un épaulement de battage (8) pour la coopération avec la chemise (5), en particulier pour la sollicitation en percussion de la chemise (5).
  14. Dispositif selon l'une des revendications 7 à 13, caractérisé en ce que la chemise (5) est épaissie sur sa zone d'extrémité (6), tournée vers l'intérieur du trou de onde, et que l'épaississement est réalisé sur sa zone d'extrémité, opposée à l'intérieur du trou de sonde, en complémentarité d'un épaulement de battage (8) du trépan (2).
  15. Dispositif selon l'une des revendications 7 à 14, caractérisé en ce que la zone d'extrémité (18), tournée vers l'intérieur du trou de sonde, de la chemise (5) est réalisée avec un creux (19), en particulier un creux asymétrique (20, 24).
EP10787258.2A 2009-11-06 2010-11-05 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 Not-in-force EP2496786B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10787258T PL2496786T3 (pl) 2009-11-06 2010-11-05 Sposób wiercenia, a zwłaszcza wiercenia udarowego lub obrotowo-udarowego otworów w materiale gruntowym lub skalnym i urządzenie do tego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1763/2009A AT508991B1 (de) 2009-11-06 2009-11-06 Verfahren zum bohren, insbesondere schlag- oder drehschlagbohren von löchern in boden oder gesteinsmaterial sowie vorrichtung hiefür
PCT/AT2010/000422 WO2011054020A2 (fr) 2009-11-06 2010-11-05 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

Publications (2)

Publication Number Publication Date
EP2496786A2 EP2496786A2 (fr) 2012-09-12
EP2496786B1 true EP2496786B1 (fr) 2013-09-18

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EP10787258.2A Not-in-force EP2496786B1 (fr) 2009-11-06 2010-11-05 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

Country Status (8)

Country Link
US (1) US20120247835A1 (fr)
EP (1) EP2496786B1 (fr)
AT (1) AT508991B1 (fr)
AU (1) AU2010314788A1 (fr)
CA (1) CA2791524A1 (fr)
ES (1) ES2440071T3 (fr)
PL (1) PL2496786T3 (fr)
WO (1) WO2011054020A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9016402B2 (en) * 2011-09-08 2015-04-28 Garry Thorne Geological drill
CN103061685B (zh) * 2013-01-08 2017-02-08 深圳市阿特拉能源技术有限公司 井底钻进工具及其防脱落自锁紧结构
AT15452U1 (de) * 2016-04-07 2017-09-15 Dywidag-Systems Int Gmbh Vorrichtung zum Bohren, insbesondere Schlag- oder Drehschlagbohren von Löchern in Boden- oder Gesteinsmaterial sowie Verfahren zum nachträglichen Anordnen eines Mitnehmers an einer derartigen Vorrichtung
AT15453U1 (de) * 2016-04-07 2017-09-15 Dywidag-Systems Int Gmbh Bohrkopf mit einem Meisselhalter sowie Verfahren zum Zusammenbauen desselben
WO2021069657A1 (fr) * 2019-10-11 2021-04-15 Sandvik Mining And Construction Tools Ab Ensemble de forage protégé par un épaulement
CN116058135A (zh) * 2023-04-04 2023-05-05 绿苑景观规划设计(山东)有限公司 一种圆形栽植穴打孔装置

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SE400346B (sv) * 1977-05-24 1978-03-20 Sandvik Ab Backventil for bergborrar
SE467632B (sv) * 1990-01-17 1992-08-17 Uniroc Ab Borrverktyg foer slaaende och roterande borrning under samtidig neddrivning av ett foderroer
SE527202C2 (sv) * 2004-08-17 2006-01-17 Sandvik Intellectual Property Bergborrkrona och gängförband för slående bergborrning
KR20080038341A (ko) * 2005-08-19 2008-05-06 "알바크" 투넬아우스바우 게젤샤프트 엠베하 보어링 프로세스 중에 보어-크라운에 대한 폐색을 해제하기위한 방법 및 장치
EP1818499B1 (fr) * 2006-02-09 2011-08-17 Gonar Sp. Zo.o. Dispositif permettant le forage et le tubage simultané
JP5135962B2 (ja) * 2007-09-11 2013-02-06 三菱マテリアル株式会社 掘削工具、掘削ビット及びデバイス

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EP2496786A2 (fr) 2012-09-12
AU2010314788A1 (en) 2012-06-14
AT508991A1 (de) 2011-05-15
CA2791524A1 (fr) 2011-05-12
ES2440071T3 (es) 2014-01-27
PL2496786T3 (pl) 2014-02-28
WO2011054020A2 (fr) 2011-05-12
US20120247835A1 (en) 2012-10-04
AT508991B1 (de) 2012-09-15
WO2011054020A3 (fr) 2011-10-27

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