JP2007528459A - One-pass punching device - Google Patents

One-pass punching device Download PDF

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Publication number
JP2007528459A
JP2007528459A JP2007502755A JP2007502755A JP2007528459A JP 2007528459 A JP2007528459 A JP 2007528459A JP 2007502755 A JP2007502755 A JP 2007502755A JP 2007502755 A JP2007502755 A JP 2007502755A JP 2007528459 A JP2007528459 A JP 2007528459A
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JP
Japan
Prior art keywords
drilling
drill bit
drill
pass
bolt
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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.)
Pending
Application number
JP2007502755A
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Japanese (ja)
Inventor
ラバ,ピエール
Original Assignee
サンドビック インテレクチュアル プロパティー アクティエボラーグ
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Priority to SE0400597A priority Critical patent/SE529459C2/en
Application filed by サンドビック インテレクチュアル プロパティー アクティエボラーグ filed Critical サンドビック インテレクチュアル プロパティー アクティエボラーグ
Priority to PCT/SE2005/000219 priority patent/WO2005085582A1/en
Publication of JP2007528459A publication Critical patent/JP2007528459A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/0033Anchoring-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
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/64Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe

Abstract

  The present invention relates to the use of a one-pass drilling device, a lock bolt, a drill bit, and a method for one-pass lock bolting for strengthening and drilling stability. The one-pass drilling device includes an elongated drill steel (11) having a tip (12) and a rear end (13) with respect to the drilling direction (F). The tip (12) has a connecting portion. The upper and lower drill bits (16) are utilized with rock machining means (17, 18; 17 ', 18'). The drill bit can be connected to drill steel. The one-pass drilling device (10) further includes a lock bolt (21; 121, 221; 321) adapted to at least partially surround the drill steel (11). The maximum diameter dimension (DB) of the drill bit (16) is smaller than the minimum diameter dimension (DI) of the rock bolt.

Description

  The present invention uses one-pass drilling devices, rock bolts, drill bits, and reinforcement, stability of drilling, road banks drilling, bench drilling, tube installation, or case drilling (case) drilling) to the method for one-pass lock bolting described in the preamble of the independent claim.

  Installation of rock bolts to reinforce excavation is usually performed in two distinct stages. Usually, holes are drilled, drill steel and bits are withdrawn, and then bolts are inserted into the holes and fixed or grouted. One-pass lock bolting involves performing these two steps simultaneously by removing the drill steel that is rejected to insert the bolt. The advantages of one-pass bolting are that it minimizes the time required to install the bolts, improves the safety of the drilling operator when compared to manual or semi-automatic bolting, and the process Including enhancing the full-automatic prospects of A further advantage improves the quality and accuracy of the lock bolt installation when compared to manual or semi-automatic bolting. The diameter of the hole is important for the performance of the lock bolt, for example in the case of friction such as split-sets and bolts. A further advantage of one-pass bolting is that the hole is not likely to collapse because the bolt is already in the hole when the drill bit is retracted. This leads to very good efficiency since the bolts are always installed, ie there are no holes to lose.

U.S. Pat. No. 4,423,986

  Prior attempts at one-pass bolting have largely targeted innovative rock bolts that also function as drill steel and have drill bits around their ends. Such devices are used via rotary drilling methods or rotary / impact drilling methods and are generally unsuitable for hard ground conditions. Existing hard ground impact lock bolts that do not reuse drill bits have a cost problem. There are a wide variety of roof bolts, one particular shape being tubular (eg, split set, Swellex, etc.), with a central hole formed in the longitudinal direction through the bolt. Drill bits that are adapted to be pulled through the housing are complex and therefore expensive. The price competitiveness of bit cost for drilling speed is exacerbated in previous one-pass lock bolts by the use of dedicated lock bolts and limited use of arbitrarily complex retractable bits. Nevertheless, the advantages of self-drilling roof bolt installation outweigh the advantages of the non-automatic drill type remain a problem.

  The use of drilling devices, rock bolts, drill bits, and the method of the present invention, as one object of the present invention, should substantially overcome or at least provide an alternative to the above-mentioned problems associated with the prior art.

  Another object of the present invention is to provide a one-pass drilling device for roof bolts.

  Yet another object of the present invention is to provide a tubular inflatable self-piercing roof bolt.

  Furthermore, it is another object of the present invention to provide a one-pass drilling device for roof bolts that is less expensive than using roof bolts of the type described above, thus making the use of roof bolts more attractive in the mining industry. .

  Furthermore, another object of the present invention is to provide an optimal roof bolt one-pass drilling device that allows the use of simpler and smaller devices compared to today's mechanized systems.

  Furthermore, another object of the present invention is to propose the use of a drill bit in a one-pass drilling device for a roof bolt that allows reuse of the drill bit.

  Throughout the specification, unless the context demands otherwise, the word “comprise” or variations such as “comprises” or “comprising” It will be understood that it is meant to encompass a defined set or group of sets without excluding any other set or group of sets.

  The accompanying drawings illustrate exemplary embodiments of the present invention having the aforementioned properties. The particularity of these drawings and the associated description does not detract from the generality of the foregoing broad description of the invention.

  1A to 1G show a one-pass drilling device 10 according to the present invention. The one-pass drilling device 10 includes several parts. The elongated drill steel 11 has a front end portion 12 and a rear end portion 13 with respect to the drilling direction F. The tip 12 has a connection portion that includes a thread 15, a taper, or a plug-in connection (not shown). The upper and lower drill bits 16 have rock mass machining means 17 and 18. The drill bit 16 can be connected to the drill steel via a connection portion that includes a thread 20, a taper, or a plug-in connection (not shown). The one-pass drilling device 10 further includes a lock bolt 21 adapted to at least partially surround the drill steel 11. The maximum diameter dimension of the drill bit is smaller than the minimum diameter of the rock bolt.

  The basic idea of the one-pass drilling device 10 according to the present invention is to drill a hole using a bolt surrounding the drill steel, and then to retract the bit without problems. There is no loss of bit parts.

  The drill bit 16 is as follows, and references are shown in FIGS. 1K or 2A and 2B. The continuous drill bit 16 has two integral parts, namely a pilot part 14 and a reamer part 19, where the pilot part 14 axis CL 1 coincides with the axis CL 3 of the hole 22. The length is sufficient to properly guide the entire device 10. The central axis or centerline CL1 of the pilot portion 14 substantially coincides with the central axis of the rock bolt during drilling but does not coincide when the drill bit is retracted. The center axis or center line CL2 of the reamer portion 19 coincides with the axis of the drill steel 11 but is substantially spaced from the axis CL3 of the hole 22. It should be noted that neither the pilot part nor the reamer part need be circular in cross section, so referencing the axes CL1 and CL2 refers to the average center line of each part. Will be understood.

The upper and lower rock drill bits 16 include a body 25 and cemented carbide means, ie chisel and / or buttons 17, 18 and 17 ', 18'. The body of the drill bit is made of steel. The body 25 includes a generally conical pilot portion 14 and a generally conical reamer portion 19. The pilot portion 14 may have a circular cross section as can be seen in FIG. 2B. The pilot part has a front surface supporting a chisel 17 extending in the opposite direction or two front buttons 17 ′ in exactly opposite directions. The reamer portion 19 can have a circular cross section. The reamer portion 19 may have a circular cross section as can be seen in FIG. 2B. The reamer portion has a front surface supporting three front buttons 18 or four front buttons 18 '. The front surface may be convex or substantially flat. The buttons 18 and 18 'may form a circular arc around the reamer portion. The buttons 18, 18 'may protrude somewhat outward from the peripheral edge of the reamer part to machine a hole having a diameter somewhat larger than the steel body during drilling. Chipways or recesses can be provided in the area between adjacent reamer buttons, through which the cleaning medium can pass. In order to transmit the rotational movement in the usual way, the rock drill bit is connected to the drill steel 11 by means of a connecting part (not shown) or the drive wheel sub of the down-the-hole hammer (not shown). Not). The drill steel 11 includes a conduit for carrying the cleaning medium. The main conduit for the cleaning medium is provided inside the drill bit. This main conduit communicates with a number of branch conduits at the front end and exits from the front. The cleaning medium is actually water, cement, or air. The pilot portion creates a pilot hole 22 A that is short in diameter and length with respect to the hole 22. The important dimensions are:
RP is the maximum radius of the pilot portion 14 in light of the hole axis CL3. RR is the maximum radius of the reamer portion 19. 1/2 (RP + RR) is the radius of the reamer portion 19 in the light of the axis CL2 of the drill steel 11. DH is the diameter of the hole 22 equal to 2 × RR. The thickness of the tube 21 is indicated by E. OFF is an offset amount between the axis CL3 of the hole 22 and the axis CL2 of the drill steel 11. DD is the diameter of the drill steel 11. DI is the smallest diameter that the drill bit 16 can move freely. DB is the maximum diameter dimension of the drill bit 16. OD is the outer diameter of the lock bolt. The following formula applies:
RR = 1 / 2DH,
RP <OD-RR-2E Applicable with lock bolts 21 and 121, or
2RR-E <DI <2RR-2E Applicable with lock bolts 221 and 321 to allow drill bit 16 to retract through lock bolt,
DD <RR + RP-2E Allows drill steel 11 to move eccentrically through bolt 21.
DB = RP + RR.
Example: The following dimensions would be suitable as an application for bolting. : RR = 19mm, RP = 14mm, OFF = 2.5mm, and 10mm <L <60mm.

Operation of the one-pass lock bolting device 10 is shown in FIGS. 1A to 1G. The drill bit 16 is connected to the drill steel 11 by being threaded, for example. A drilling machine such as a standard drill jumbo holds the drill steel. The bolt 21 is preferably fed automatically around the drill steel and is positioned after the drill bit 16 in the drilling direction F. In FIG. 1A, the pilot portion 14 will first contact the rock in order to machine the rock surface for a short time with circular interpolation. The pilot portion 14 then finds the correct center and begins drilling from the center, while the drill steel 11 simultaneously begins to swing around the pilot portion axis CL1 (see FIG. 1B). The reamer portion 19 then contacts the rock surface and begins to expand the hole dug by the pilot portion 14. After a short time, the bolt 21 reaches the hole and is pushed into the hole as shown in FIGS. 1C and 1H. Usually, the bolt 21 is spaced axially from the drill bit 16. The split bolt 21 can become the diameter of the hole 22 by compression. The drill bit 16 continues to drill and expands the hole 22, while the bolt is pushed forward by the connecting machine 26 of the drilling machine (see FIG. 1D) until the supply of new parts is stopped. The depth of the hole 22 is largely determined by the length of the bolt 21, ie when the washer 23 located at the rear end of the bolt reaches the rock surface or the hole entrance, the further supply is stopped (FIG. 1E). See). The drilling machine has a lock bolt pusher. The bolt pusher is a dolly tool 27 (see FIG. 1L) driven by a connecting sleeve 26 or drill steel. The dolly tool 27 typically rotates with the drill steel and bolt during insertion. However, for example, the bolt may be held against rotation during insertion to avoid unexpected shell expansion during drilling, as in the case of mechanical anchor bolts. The dolly tool can torque the expansion shell lock bolt when fully inserted. The dolly tool can also slide along the drill steel to allow easier installation of mechanical shell bolts and grouting bolts. FIG. 1E shows a fully inserted rock bolt with fully inserted drill steel and drill bit and a pusher pressing the plate against the rock surface. The washer is an uncoupled conventional plate with a central hole that cooperates with the protrusion 24 at the end of the bolt. The drill bit is then retracted from the pilot hole 22A (see FIGS. 1F and 1K). The axial clearance between the bolt and the drill bit is preferably greater than the depth of the pilot hole 22A so that the bolt tip does not interfere with the withdrawal of the drill bit. The drill bit and drill steel can be fully retracted and reused for repeated drilling operations. In other words, the one-pass lock bolting method includes the following steps.
An elongate drill steel 11 having a tip 12 and a rear end 13 with respect to the drilling direction F, said tip 12 having a connecting part 15, upper and lower cascades with means 17, 18 or 17 ′, 18 ′ for machining the rock mass Providing a one-pass drilling device 10 comprising a drill bit 16 and said drill bit connectable to drill steel 11;
The drill bit 16 and the lock bolt 21 allow the drill bit 16 to pass through the lock bolt 21 when the drill bit is retracted, at least partially surrounding the drill steel 11 with the lock bolt 21 At the stage,
-Drilling the hole in the rock while pushing the lock bolt into the hole 22;
The step of retracting the drill steel 11 and the drill bit 16 via the lock bolt 21;

  The machine that drives the device 10 is a top hammer drilling machine, a rotating machine, or a downhole device. In order to avoid displacement, wear and hole diameter reduction due to radial force from the reamer at the pilot part, the tip of the pilot part faces the reamer part completely so as to counteract the radial force. Would be formed at an angle. Said force against the reamer part is the part farthest away in the radial direction of the reamer part, which helps the reamer part continue to work, which also allows the pilot part on the reamer side to wear, but when viewed from the reamer part Too much wear on the far pilot side is not allowed. The side of the pilot portion remote from the reamer portion can be provided with a wear pad. This wear of the pilot part on the reamer side may also be advantageous to maintain the hole diameter and to partially correct the wear on the periphery of the reamer part. This configuration will provide an automatic grinding drill bit.

  3A and 3B show an alternative embodiment of a drilling device for one-pass bolting with a field of view similar to FIGS. 1H and 1K. In this embodiment, the bolt 121 has a different structure and is different from that previously disclosed. The lock bolt 121 is manufactured from a steel tube without a longitudinal slot. The lock bolt 121 has a smaller diameter than the perforated hole. As discussed above, when the hole is drilled, the drill bit and drill steel are retracted (see FIG. 3B), while the bolt 121 remains in the hole. The maximum diameter dimension of the drill bit 16 is smaller than the minimum diameter dimension DI of the lock bolt 121. The bolt remains in the hole thanks to an external system connected to the drilling device, either by an uncoupled parachute or by a parachute integrated into the locking bolt itself.

  The grout agent or resin is then filled into the bolt internally or externally and the filling allows it to cure or solidify. A washer is preferably used to cover the hole entrance, as discussed above.

  4A and 4B show an alternative embodiment of a drilling device for one-pass bolting in the same field of view of FIGS. 1H and 1K. In this embodiment, the bolt 221 has a different structure and is different from that previously disclosed. The lock bolt 221 is manufactured from a steel tube that has been deformed to have a deep recess in order to have a substantially reduced diameter, i.e., the size is reduced to approximately half that of a cylindrical tube. A lock bolt 221 formed in a fluid inflatable tube has a chamber for receiving an elongate pressurized fluid therein, closed at both ends but with a fluid inlet. The sleeve is crushed at its outer end and sealed or mechanically sealed through welding. The bolt is generally U-shaped so that the drill bit 16 can pass through it. In the radial cross-section of FIG. 4B, the ends 221A and 221B are in approximately diametrically opposite directions, i.e., the bolt is substantially semicircular. The lock bolt 221 is adapted to at least partially surround the drill steel 11. The maximum diameter dimension DB of the drill bit 16 is smaller than the minimum gap or diameter dimension between the lock bolt and the hole 22.

  The drilling operation is performed as discussed above. When the lock bolt is automatically inserted into the bore hole and the drill bit 16 and drill steel are retracted as described above, high pressure liquid is transferred through the passage to the hole and the tube is plastically deformed. Through the sleeve to the inner chamber of the tube, thereby locking the lock bolt in the borehole. The lock bolt is then released from the pressure and fixed. The essential function of pressurizing the fluid chamber is more precisely described in US Pat. A washer is preferably used to cover the hole entrance as discussed above.

  FIGS. 5A and 5B show an alternative embodiment of a drilling device for one-pass bolting in the same field of view of FIGS. 1H and 1K. In this embodiment, unlike the previously disclosed, the bolts 221 have different structures. The lock cable bolt 321 is manufactured from a multi-strand steel cable. The drill bit 16 drills and expands the hole with a single drilling operation. As discussed above, when the hole is drilled, the drill bit and drill steel are retracted (see FIG. 3B) while the bolt 321 remains in the hole. The maximum dimension DI for the cable bolt 321 is the gap that can be used between the cables when pressing against the hole wall exactly opposite to the hole wall.

  The grout agent or resin is then filled into the bolt internally or externally and the filling allows it to cure or solidify. Cable bolting is an established technique used extensively for reinforcement of rock mass close to the surface and excavation of underground rock mass. The cable bolt is long, fully grouted, and is a reinforcing element that is not tensioned. The purpose of cable bolting is to improve the shear strength and tensile strength of the rock mass.

  A one-pass drilling apparatus according to various embodiments of the present invention includes a lock bolt adapted to at least partially surround the drill steel during drilling, wherein the maximum diameter dimension of the drill bit is greater than the minimum diameter dimension of the lock bolt. small.

The advantages of using automatic drilling bolts are:
-Drilling and installation are performed at the same time.
-Fast and easy installation reduces the following costs of bolting.
-Costs for difficult geological conditions, especially in the case of unstable drill holes.
-Cost of bedrock curing when fixing with grout.
-Cost of bolt selection depending on grout conditions.
-Cost of drilling and installation using standard drill jumbo.
-Costs that do not require special equipment.
-Drill bits can be used to drill several holes.
-Drill bits do not need to be plugged in place before retraction begins.

  The invention described herein is susceptible to variations, modifications, and / or additions, except as expressly stated, and the invention includes all variations, modifications, and / or additions that are within the scope of the claims. It should be understood that It is not limited to the rotary hammer type top hammer. The concept is also valid using pure rotary drilling or DTH drifters. The number of cemented carbide buttons in the pilot and reamer portions can vary depending on the diameter of the drill bit. The reamer portion may comprise a hard sleeve or insert that is substantially flush with the jacket surface, with the aim of maintaining its diameter and improving the quality of the hole wall. It is also understood that drill steel and rock bolts can be stretched using one or more components when deeper holes are drilled.

Fig. 4 schematically shows the process of tightening a one-pass roof bolt using the device according to the invention. Fig. 4 schematically shows the process of tightening a one-pass roof bolt using the device according to the invention. Fig. 4 schematically shows the process of tightening a one-pass roof bolt using the device according to the invention. Fig. 4 schematically shows the process of tightening a one-pass roof bolt using the device according to the invention. Fig. 4 schematically shows the process of tightening a one-pass roof bolt using the device according to the invention. Fig. 4 schematically shows the process of tightening a one-pass roof bolt using the device according to the invention. Fig. 4 schematically shows the process of tightening a one-pass roof bolt using the device according to the invention. 1D shows a cross section of a drilling device in a hole similar to FIG. 1D. Fig. 2 shows a cross section of the drilling device in the hole as in Fig. IE. Fig. 2 shows an exploded view of a drilling device according to the present invention. 1C shows a side view of a drilling device according to FIG. 1C and an end view of a drill bit according to the invention. FIG. 1C shows a side view of a drilling device according to FIG. 1C and an end view of a drill bit according to the invention. FIG. 1H shows an alternative embodiment of a one-pass bolting drilling device with a view similar to FIG. 1H. 2D shows an alternative embodiment of a one-pass bolting drilling device with a view similar to FIG. 1K. 1H shows an alternative embodiment of a one-pass bolting drilling device according to the present invention with a view similar to FIG. 1H. FIG. 2D shows an alternative embodiment of a one-pass bolting drilling device according to the present invention with a view similar to FIG. 1K. 1H shows an alternative embodiment of a one-pass bolting drilling device according to the present invention with a view similar to FIG. 1H. FIG. 2D shows an alternative embodiment of a one-pass bolting drilling device according to the present invention with a view similar to FIG. 1K.

Claims (9)

  1. A one-pass drilling device (10),
    Comprising an elongated drill steel (11) and a drill bit (16) connected in series,
    The elongated drill steel (11) has a front end (12) and a rear end (13) with respect to the drilling direction (F), and the front end (12) has a connecting portion;
    The upper and lower drill bits (16) comprise rock machining means (17, 18; 17 ', 18'), the drill bit being firmly connected to the drill steel;
    Further including a lock bolt (21; 121, 221; 321) adapted to at least partially surround the drill steel (11); and the drill bit (16) and the lock bolt (21; 121, 221; 321) is adapted to allow the drill bit (16) to pass through the locking bolt (21; 121, 221; 321) when the drill bit is retracted;
    One-pass drilling device characterized by.
  2.   The maximum diameter dimension (DB) of the drill bit (16) is smaller than the minimum diameter dimension (DI) of the rock bolt, and the upper and lower drill bits (16) are spaced apart by centerlines (respectively, One-pass drilling device according to claim 1, characterized in that it comprises a pilot part (14) and a reamer part (19) with CL1 and CL2).
  3.   The one-pass drilling device according to claim 2, characterized in that the center line (CL1) of the pilot part (14) substantially coincides with the central axis of the rock bolt during drilling.
  4.   The one-pass drilling device according to claim 2, characterized in that the center line (CL2) of the reamer part (19) substantially coincides with the axis of rotation of the tip (12) of the drill steel (11).
  5. Using an up and down drill bit (16),
    The one-pass drilling device according to claim 1, comprising a pilot part (14) and a reamer part (19) having spaced centerlines (CL1 and CL2 respectively) to use.
  6. A one-pass lock bolt tightening method including the following steps,
    -Providing a one-pass drilling device (10) comprising an elongated drill steel (11) and an upper and lower drill bit (16), said elongated drill steel (11) with respect to the drilling direction (F) , A tip end portion (12) and a rear end portion (13), the tip end portion (12) has a connecting portion, and the drill bit (16) which is connected to the upper and lower sides is formed by rock machining means (17, 18). And 17 ′, 18 ′), which are rigidly connected to the drill steel;
    -Enclosing the drill steel at least partially with lock bolts (21; 121, 221; 321), wherein the drill bit (16) and the lock bolts (21; 121, 221; 321) are drilled; Allowing the drill bit (16) to pass through the lock bolt (21; 121, 221; 321) when the bit is retracted;
    -Drilling the hole in the rock while pushing the lock bolt into the hole;
    -Retracting the drill steel and the drill bit via a rock bolt;
    Including one-pass lock bolt tightening method.
  7.   The method includes the drill bit (16), such as a series of drill bits including a pilot portion (14) and a reamer portion (19) having spaced centerlines (CL1 and CL2 respectively). The method of claim 6, comprising the further step of providing.
  8. The lock bolt (221) has a partially tubular main body having a front end portion and a rear end portion, and the rear end portion has a washer and a washer stop means, and the lock bolt The lock bolt for a one-pass drilling device according to claim 1, wherein (221) is expandable with a fluid,
    The lock for a one-pass drilling device according to claim 1, characterized in that it is substantially semi-circular and is generally U-shaped to allow the passage of a drill bit that is firmly connected to the drill steel. bolt.
  9.   The lock bolt according to claim 8, characterized in that in the radial cross section of the lock bolt, the ends (221A, 221B) are in substantially opposite directions.
JP2007502755A 2004-03-10 2005-02-18 One-pass punching device Pending JP2007528459A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE0400597A SE529459C2 (en) 2004-03-10 2004-03-10 drilling equipment
PCT/SE2005/000219 WO2005085582A1 (en) 2004-03-10 2005-02-18 Single pass drilling apparatus, use a one -piece drill bit, method and rock bolt for single pass rock bolting.

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JP2007528459A true JP2007528459A (en) 2007-10-11

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US (1) US20070274788A1 (en)
EP (1) EP1725736A1 (en)
JP (1) JP2007528459A (en)
KR (1) KR20070003850A (en)
CN (1) CN1930362A (en)
AU (1) AU2005219818A1 (en)
CA (1) CA2554598A1 (en)
RU (1) RU2006132324A (en)
SE (1) SE529459C2 (en)
WO (1) WO2005085582A1 (en)
ZA (1) ZA200606741B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE526132C2 (en) * 2003-11-13 2005-07-12 Atlas Copco Rock Drills Ab Method and device for installing a self-drilling expandable rock bolt and a self-drilling expandable rock bolt
AT501875B1 (en) 2005-06-07 2008-05-15 Alwag Tunnelausbau Gmbh Method and device for drilling, in particular fitting or turning of a hole in ground or rock material
AT502825B1 (en) * 2006-01-19 2007-06-15 Atlas Copco Mai Gmbh Fluid recovery
FI122034B (en) * 2006-10-03 2011-07-29 Turun Ammattikorkeakoulu Method for drilling a hole
KR101434244B1 (en) * 2007-02-14 2014-08-27 산드빅 인터렉츄얼 프로퍼티 에이비 A drill bit and a single drilling apparatus
CA2605208A1 (en) * 2007-03-09 2008-09-09 Agnico-Eagle Mines Limited Bolt assembly
US7625155B1 (en) 2009-03-25 2009-12-01 Safe Overhead Systems, Inc. Mine roof cable bolt assembly
US9194187B2 (en) * 2013-03-15 2015-11-24 Dover Bmcs Acquisition Corporation Rotational drill bits and drilling apparatuses including the same
US9499951B2 (en) * 2013-05-27 2016-11-22 Oka Rock Bolt Technologies Pty Limited Self-drilling rock bolt assembly and method of installation
AU2016245331A1 (en) * 2015-04-10 2017-11-02 Fero Group Pty Ltd Improved drilling assembly comprising a friction bolt

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1033603A (en) * 1962-07-09 1966-06-22 Atlas Copco Ab Improvements in rock drilling equipment
US3390730A (en) * 1965-10-07 1968-07-02 Carrier & Ateliers Stenuick Fr Apparatus for lining a borehole as a boring bit advances in the ground
WO2002088523A1 (en) * 2001-04-26 2002-11-07 Techmo Entwicklungs- Und Vertriebs Gmbh Method and device for drilling a hole and for securing an anchorage in a bore hole

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO159201C (en) * 1980-09-08 1988-12-07 Atlas Copco Ab Procedure for bolting in the mountains and combined expansion bolt and installation device for the same.
US6106200A (en) * 1996-11-12 2000-08-22 Techmo Entwicklungs-Und Vertriebs Gmbh Process and device for simultaneously drilling and lining a hole
AUPQ009799A0 (en) * 1999-04-30 1999-05-27 Raers Corporation Pty Ltd Drilling apparatus and method for single pass bolting
AT412739B (en) * 2002-01-22 2005-06-27 Techmo Entw & Vertriebs Gmbh Method and device for drilling a hole in ground or rock material and for forming an anchorage
US6739416B2 (en) * 2002-03-13 2004-05-25 Baker Hughes Incorporated Enhanced offset stabilization for eccentric reamers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1033603A (en) * 1962-07-09 1966-06-22 Atlas Copco Ab Improvements in rock drilling equipment
US3390730A (en) * 1965-10-07 1968-07-02 Carrier & Ateliers Stenuick Fr Apparatus for lining a borehole as a boring bit advances in the ground
WO2002088523A1 (en) * 2001-04-26 2002-11-07 Techmo Entwicklungs- Und Vertriebs Gmbh Method and device for drilling a hole and for securing an anchorage in a bore hole

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CN1930362A (en) 2007-03-14
SE0400597D0 (en) 2004-03-10
AU2005219818A1 (en) 2005-09-15
CA2554598A1 (en) 2005-09-15
ZA200606741B (en) 2010-01-27
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US20070274788A1 (en) 2007-11-29
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KR20070003850A (en) 2007-01-05
EP1725736A1 (en) 2006-11-29

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