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WO1998021439A1 - Procede et dispositif pour forer et revetir en meme temps des trous - Google Patents

Procede et dispositif pour forer et revetir en meme temps des trous Download PDF

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Publication number
WO1998021439A1
WO1998021439A1 PCT/AT1997/000247 AT9700247W WO9821439A1 WO 1998021439 A1 WO1998021439 A1 WO 1998021439A1 AT 9700247 W AT9700247 W AT 9700247W WO 9821439 A1 WO9821439 A1 WO 9821439A1
Authority
WO
WIPO (PCT)
Prior art keywords
drill bit
cladding tube
cladding
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.)
Ceased
Application number
PCT/AT1997/000247
Other languages
German (de)
English (en)
Inventor
Josef Mocivnik
Karl BÖHM
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.)
Alwag Tunnelausbau GmbH
Techmo Entwicklungs und Vertriebs GmbH
Original Assignee
Alwag Tunnelausbau GmbH
Techmo Entwicklungs und Vertriebs GmbH
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
Priority claimed from AT197896A external-priority patent/AT407895B/de
Priority claimed from AT106597A external-priority patent/AT408472B/de
Priority to CA002271655A priority Critical patent/CA2271655C/fr
Priority to HK00102661.4A priority patent/HK1023611B/xx
Priority to IDW990329D priority patent/ID21554A/id
Priority to DE59707305T priority patent/DE59707305D1/de
Priority to PL97333244A priority patent/PL185256B1/pl
Priority to SK593-99A priority patent/SK283483B6/sk
Application filed by Alwag Tunnelausbau GmbH, Techmo Entwicklungs und Vertriebs GmbH filed Critical Alwag Tunnelausbau GmbH
Priority to EP97911051A priority patent/EP0948701B1/fr
Priority to JP52877197A priority patent/JP3813177B2/ja
Priority to SI9730372T priority patent/SI0948701T1/xx
Priority to AT97911051T priority patent/ATE217681T1/de
Priority to AU48562/97A priority patent/AU726332B2/en
Publication of WO1998021439A1 publication Critical patent/WO1998021439A1/fr
Priority to US09/310,157 priority patent/US6106200A/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • 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
    • E21B10/00—Drill bits
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • E21D20/003—Machines for drilling anchor holes and setting anchor bolts
    • 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

Definitions

  • the present invention relates to a method for drilling, in particular percussion or rotary percussion drilling, and lining holes in soil or rock material, a drill hole being formed by a striking and / or rotating movement by means of a drill bit mounted on a drill pipe and by a cladding tube a lining is formed. Furthermore, the present invention relates to a device for drilling, in particular percussion or rotary impact drilling, and lining holes in soil or rock material, a drill bit mounted on a drill pipe forming a borehole by a striking and / or rotating movement.
  • a hole or a hole which may extend over great lengths, is formed with the aid of a drill bit which is mounted on a drill pipe, the hole being formed by a striking and / or rotating movement.
  • this core bit is usually rotated by a certain angle after each impact on the drill bit and is again acted upon by a striking tool, the systematic alternating displacement of the drill bit in the direction of rotation and the intermittent striking on the surface covered by the drill bit during the rotary movement the material is crushed and broken out.
  • a suitably solid cladding tube being for example the striking movement is exerted on the drill bit via the cladding tube and thus, strictly speaking, the cladding tube represents part of the drilling or propulsion device.
  • a cladding tube must be of correspondingly solid and thick-walled design in order to introduce the required high impact forces, which means that a correspondingly larger cross section must be drilled in order to take into account the wall thickness of the cladding tube.
  • Such a cross-sectional area enlarged by the wall thickness of the cladding tube requires a correspondingly greater amount of time to produce the bore, in particular in the case of hard rock, and at the same time requires a correspondingly larger and solidly formed drill bit.
  • an anchor can, for example, be introduced into the cladding tube and, additionally or alternatively, a correspondingly rapidly setting material for solidifying the surrounding material. rials are introduced.
  • a lining can be used to hold lines or the like or, if perforations are provided, can be used to drain liquids and thus for drainage.
  • the present invention therefore aims to develop, starting from a method for drilling, in particular impact or rotary impact drilling, and lining holes in soil or rock material, in such a way that at least one cladding tube is introduced quickly and easily substantially simultaneously with the formation of the borehole can. Furthermore, the aim is to use a cladding tube or cladding tubes with dimensions that are smaller than the known embodiments and in particular reduced wall thickness, in order to be able to reduce to a minimum the additional effort required for the cladding tube (s) during drilling.
  • the method according to the invention is essentially characterized in that, with the advancing movement during drilling, at least one cladding tube coupled to the drill bit is introduced into the borehole in the axial direction by tensile action by the drill bit, and that after completion of the drilling operation, the drill bit is at least partially together is removed from the cladding with the drill pipe.
  • the at least one cladding tube is introduced directly through the drill bit into the borehole by axial loading only, it can be found that a very thin-walled cladding tube is sufficient, since the cladding tube has no forces, as was the case, for example, in accordance with the prior art , the impact forces via a correspondingly massive cladding tube have been exerted on the drill bit, have to take it up and pass it on and only have to have sufficient strength to reliably prevent kinking or a reduction in the cross section in the event of loose rock.
  • the drill bit can, for example, be divided into a substantially central part and an outer part which essentially surrounds the central part, so that after the central part has been released, this main component of the drill bit, together with the drill pipe, passes through the interior of the at least one cladding tube the borehole can be removed.
  • the drill bit be rotatably arranged relative to the casing tube (s).
  • the method according to the invention is further developed in such a way that, after the drill pipe and the central part of the drill bit have been removed, an anchor is introduced into the cladding tube (s) and / or backfilling is carried out with a hardening material.
  • the removed material be introduced into the interior of the casing tube (s) via at least one opening arranged in the area adjoining the drill bit and is released from the borehole in the space between the cladding tube (s) and the drill pipe. Due to the fact that the mined material is brought out of the borehole in the space between the cladding tube or cladding tubes and the drill pipe, the required borehole cross-section can be further reduced, so that the outer dimensions of the borehole can essentially be matched to the outer diameter of the outer cladding tube and this only slightly exceed in a favorable manner.
  • a device for drilling, in particular percussion or rotary percussion drilling, and lining holes in soil or rock material, wherein a drill bit mounted on a drill pipe forms a borehole by a striking and / or rotating movement, is essentially for solving the tasks set out above characterized in that the drill bit is split in the radial direction and that at least one cladding tube surrounding the drill pipe is positively connected to the drill bit in the longitudinal direction of the drill hole on the outer circumference of the drill bit at the end facing away from the excavation surface via at least one coupling element.
  • the drill bit is divided in the radial direction, it can easily be ensured when the borehole is completed that, for example, the central main part of the drill bit can be removed from the borehole through the cladding tube together with the drill pipe, while the at least one cladding tube can be removed directly when the borehole is produced, it is introduced into the borehole by a pulling device which takes place in the longitudinal direction of the borehole and remains inside the borehole after the borehole has been completed.
  • the drill bit is rotatable via the coupling element with the (the) cladding tube (s) is connected.
  • the coupling elements of offset peripheral regions of the drill bit and the cladding tube have a coordinated, complementary profile, optionally with the interposition of a profiled, annular intermediate member are formed.
  • Such offset circumferential areas which can be designed, for example, in the manner of step-like elevations and complementary depressions, can ensure that the casing pipe is carried along securely during the advancing movement of the drill bit even with comparatively thin wall thicknesses of the casing pipe.
  • the coupling elements are formed by a plurality of balls, which have recesses on the drill bit which have a substantially semicircular cross section and complementary recesses are arranged on a connecting piece of the cladding tube or cladding tubes adjoining the drill bit, as this corresponds to a further preferred embodiment of the device according to the invention.
  • a correspondingly simple connection and coupling between the drill bit and the cladding tube or the cladding tubes can be made in the manner of the ball bearing enable, whereby a correspondingly easy rotatability of the at least one cladding tube relative to the drill bit can be achieved during the rotating and / or rotationally striking movement of the drill bit during the production of the borehole.
  • connection piece of the at least one cladding tube and / or the connection area of the drill bit are made of metal, plastic or a coated material, with the use of balls, for example made of metal or plastic, a coordination of the individual materials of both the coupling elements and the connecting piece of the cladding tube (s) having the recesses (see ) or the end piece of the drill bit.
  • a lubricant for example oil, can also be introduced into the recesses for receiving the coupling elements formed by the balls.
  • the coupling elements between the drill bit and the ( the) cladding tube (s) are at least partially formed from a damping material or coated with a damping material, as this corresponds to a further preferred embodiment of the device according to the invention.
  • the (the) Cladding tube (s) has (have) at least one passage opening in its end region facing the drill bit, in particular a plurality of bores or passage slots evenly distributed around the circumference of the cladding tube.
  • cladding tubes can not only be used for the subsequent insertion of an anchor and thus generally for the production of an anchoring of objects. are set, but it can also be provided, for example, to carry out drainage via the borehole produced and the cladding tubes introduced into it.
  • the cladding tube (s) is (are) formed over its entire length with perforations which are substantially uniformly distributed over the circumference.
  • the drill bit consist of at least a central inner part and an outer part, which are coupled to one another but releasably coupled, the central part the drill bit has a slightly smaller outer diameter than the inner diameter of the inner cladding tube.
  • the central inner part of the drill bit have a cross-section deviating from the circular shape and be led out through a corresponding opening in the outer part of the drill bit to take rotation.
  • the cladding tube is introduced directly through the drill bit by an action in the axial direction during the driving or drilling movement, it is not necessary compared to the outer dimensions of the outer cladding or lining tube to provide an enlarged diameter of the borehole, as was required according to the prior art, in particular when a cladding tube was subsequently inserted. It is therefore sufficient that the outer diameter of the outer casing tube corresponds essentially to the outer dimensions of the drill bit in the radial direction.
  • the cladding tubes used in the context of the invention essentially only possibly break in material rial have to withstand and no forces, for example impact forces for rotary impact drilling, have to absorb or transmit, can be found with correspondingly thin-walled cladding tubes.
  • the cladding tube (s) have a wall thickness of 1 to 3 mm, in particular about 2 mm, so that it is immediately apparent that the entire cladding tube to be dismantled or provided by the cladding tubes .
  • the area to be drilled has to be increased only slightly and even with a correspondingly low use of material and thus weight for the cladding tube (s) it is possible to find sufficient length.
  • the cladding tube (s) is (are) made of metal or plastic, so that a correspondingly simple adaptation to the ambient conditions and in particular to the soil or rock material in which a borehole is made should be trained is possible.
  • a cladding tube made of metal has a correspondingly high mechanical strength, it can be disadvantageous with such a design that loose or loose layers of soil or rock can impair the mostly very thin-walled cladding tube in the sense of kinking or narrowing the cross-section of the cladding tube , whereby a subsequent removal of the drill bit may be difficult or completely prevented, so that the subsequent insertion of an anchor, for example, is no longer possible.
  • the use of coupling elements in the manner of a ball bearing is particularly advantageous in order to enable the undisturbed, free rotation of the drill bit and the sheaths during the rotating or rotary drilling movement of the drill bit , since a rotating entrainment of the cladding tube through the drill bit can be regarded as disadvantageous when using cladding tubes made of plastic.
  • two cladding tubes are arranged essentially concentrically to one another and over Intermediate space between the cladding tubes, preferably spacing elements or stop elements arranged on one of the mutually facing jacket surfaces of the cladding tubes, are kept at a distance from one another.
  • the invention is in essentially characterized in that at least the outer cladding tube is formed in several parts and in the area of at least one connection of adjacent cladding tube sections are detachably coupled to the inner tube via a closure which can be decoupled by relative rotation of adjacent elements, in particular via a bayonet closure. Due to the multi-part design of the outer cladding tube and a decouplable connection of adjacent cladding tube sections, it is possible to pull one cladding tube section after loosening the closure of two adjacent cladding tube sections, the other remaining stationary and thus a borehole lining with changing diameters being achieved.
  • the device according to the invention is preferably designed such that the cladding tubes arranged concentrically to one another each have stop elements directed into the annular space between the cladding tubes in at least one end region, and in that in the area of a connecting element, in particular a sleeve element of the inner tubes, guide and decoupling elements for adjoining, outer cladding tube elements are arranged.
  • cladding tubes which are arranged concentrically to one another, have stop elements directed into the annular space between the cladding tubes in at least one end region, a complete pulling apart of the inside and outside cladding tubes is avoided with certainty and, according to the invention, a sleeve element of the inner tubes having guide and decoupling elements can also be used according to the invention specific entrainment of certain inner and outer pipe sections can be ensured.
  • the concentrated cladding tubes arranged in relation to one another can be connected to the outer region of the drill bit.
  • at least the outer cladding tube is fixed to the drill bit, so that at least the outer cladding tube is securely carried in the area of the drill bit.
  • FIG. 1 shows a partial view, partly in section, of a first embodiment of a device according to the invention for carrying out the method according to the invention
  • Fig. 2 is a view in the direction of arrow II of Figure 1 on the drill bit of the device according to the invention.
  • FIG. 3 On an enlarged scale compared to the illustration in FIG. 1, again partially in section, a side view of an enlarged length section of the device according to the invention in FIG. 1 after removal of the central part of the drill bit and the drill string;
  • Figure 4 is a partial sectional view of a borehole made with the device according to the invention with the anchor set; 5 shows, in a representation similar to FIG. 1, a modified embodiment of a device according to the invention for carrying out the method according to the invention; Fig. 6 is a view in the direction of arrow VI of Figure 5 on the drill bit of this second embodiment. 7 shows, in a representation similar to FIG. 1, a modified embodiment of a device according to the invention for carrying out the method according to the invention; and
  • FIG. 8 shows a schematic illustration of the inner and outer cladding tube, the first cladding tube sections viewed in the direction towards the drill bit being shown in a pushed-together view in FIG. 8a, the first and second inner and outer sections of the cladding tubes of FIG seen from the drill bit in a pushed together 8c, the same as in FIG. 8b, the cladding tube sections are shown in a partially extended state, and in FIG. 8d, the cladding tube sections are shown in a fully extended state.
  • a drill bit is generally designated by 1, which consists of a central part, the so-called pilot drill bit 2 and an annular drill bit 3 surrounding this pilot drill bit 2.
  • pilot drill bit 2 On the front end face of the pilot drill bits 2 and the ring drill bit 3, conventional mining tools known per se, such as, for example, essentially hemispherical hard material inserts 4, are provided for mining the material.
  • a relatively small wall thickness of, for example, 2 mm cladding tube is coupled to the drill bit 1, wherein a profiled, annular intermediate member 6 is used for the coupling, which has step-like or nose-like projections 7 engages in corresponding recesses both in the area of the ring core bit 3 and in the foremost section of the outer cladding tube 5.
  • a drawn, inner cladding tube 5 ' has at its upper end region a stop element 29 which lies tightly against the outer cladding tube 5.
  • the outer cladding tube 5 is entrained in the drilling or advancing direction indicated by arrow 8 by means of an axial tensile stress, while the drill bit 1 is rotatably supported relative to the cladding tubes 5 and 5 ', so that this rotating movement when drilling the drill bit 1 is not hindered.
  • the cladding tubes 5 and 5 ' which can be made correspondingly thin-walled, are carried along by the drill bit 1, the cladding tubes 5 and 5' surrounding the drill pipe, indicated schematically by 9, to form a free space 10.
  • the drill pipe 9 can be designed as a tube or be provided with another line via which a gaseous or liquid flushing agent can be fed in and pressed out into the free space 10 through openings between the drill bit 1 and the passage openings 11.
  • the outer contour of the borehole to be produced is indicated schematically at 13 in FIGS. 1 and 2. It is immediately clear that when using correspondingly thin-walled cladding tubes 5 and 5 ', which are only exposed to tensile stress in the axial direction of the borehole through the drill bit 1 during the mining process, the overall diameter of the borehole 13 can be correspondingly smaller.
  • the pilot drill bit 2 which preferably has a cross section deviating from the circular shape, is decoupled from the ring drill bit 3 and pulled off together with the drill pipe through the cladding tube 5 ′, so that the entire interior space, which is defined by the cladding tube 5 ′, for example for the insertion of an anchor or a filler.
  • FIG. 3 a larger length section is shown, whereby it can be seen that the pilot drill bit or the central part 2 of the drill bit has already been removed together with the drill string, so that only the cladding tubes or lining tubes 5 and 5 are left in the borehole 13 'and the ring core bit 3 remain. From Fig. 3 it can also be seen that in addition to the coupling 6 between the drill bit or the remaining ring drill bit 3 and the cladding tube 5 in the foremost section is coupled to the drill bit via a corresponding coupling element 14. Via the openings 11 provided in the front section, a filling compound can be inserted into the front section, for example Area of the borehole 13 for anchoring can also be introduced into the space between the boundary of the borehole 13 and the outer cladding tube 5. Further longitudinal sections of the outer cladding tubes 5 have projections 31 and 32 in their end portions, which are coupled to one in a sleeve 30, which firmly connects two sections of inner cladding tubes 5 'to one another.
  • an anchor indicated schematically by 15 can be inserted or in particular screwed in, this anchor 15 additionally in its exposed area is supported or braced on the ground via a screw connection 16.
  • an appropriate backfill mass can also be introduced into the cladding tubes 5 and 5 'immediately when the anchor 15 is introduced, in order to ensure that the foremost section is anchored to the ring drill bit 3 remaining in the ground.
  • a modified embodiment is shown in a representation similar to FIGS. 1 and 2, wherein a cladding tube, again designated 5, is rotatably fixed directly on the outer circumference of a ring drill bit 17 and one provided with cutting edges 18 Pilot drill bit is designated 19.
  • the fixing on the outer circumference of the ring bit 17 takes place via correspondingly stepped or stepped partial areas both on the ring bit bit 17 and on the end of the cladding tube 5 facing the bit bit 1, the corresponding profiles being designated by 20 and 21.
  • the inner cladding tube and its stop element are again designated 5 'and 29, respectively.
  • the drill string coupled to the drill bit 1 is designated 22.
  • the central part or the pilot drill bit 19 is made after completion of the borehole
  • the drill bit 1 is pulled out together with the drill pipe 22 through the interior of the cladding tube 5 or 5 ', whereupon, for example, an anchor can again be introduced and / or additionally filled with a hardening material, in particular cement milk.
  • such a borehole 13 can also be used, for example, for drainage or drainage, in this case distributed over the length of the cladding tubes 5 and 5' and over the To be provided a plurality of perforations or openings.
  • 1 denotes a possibly multi-part drill bit with hard material inserts 4, with cladding tubes carried by the drill bit 1 being designated 5 and 5 '. While in the preceding embodiment the cladding tubes 5, 5 'can for example be formed from a metallic material, in the embodiment shown in FIG. 7 the cladding tubes 5 and 5' as well as the stop element 29 are made of plastic.
  • the attachment to the drill bit 1 takes place via a multiplicity of coupling elements in the form of balls 23, which are received in corresponding recesses 24 of semicircular cross section at the rear of the drill bit 1 and complementary, semicircular recesses 25 of a connecting piece 26, the connecting piece 26 is directly connected to the cladding tube 5 made of plastic.
  • the balls 23, which form the coupling elements between the drill bit 1 and the cladding tube 5, thus constitute a coupling in the manner of a ball bearing, as a result of which a correspondingly simple rotation between the cladding tube 5 and the drill bit 1 can be achieved during the rotating or rotational movement.
  • the Drill bit 1 in the area surrounding the cladding tube 5 is additionally provided on the inside with a support tube 27 and on the outside with a support tube 28, between which the jacket tube 5 made of plastic is then correspondingly attached or clamped directly to the connection piece 26, these additional supports 27 and 28 can be formed from metal, for example.
  • the connecting piece 26 and the extension of the drill bit 1 can also be made of metal or plastic, or be provided with attractive coatings.
  • 8 schematically shows the inner and outer cladding tubes 5 'and 5, as they can be moved or pulled against each other when the drill bit is being driven into the rock or earth material.
  • 8a shows the first cladding tube sections 5 and 5 'seen in the direction of the drill bit 1 in the pushed-together position, i.e. in the position at the start of drilling.
  • the outer cladding tube section 5 has schematically at its front end an intermediate member 6, which is intended for fixing the outer cladding tube section 5 to the drill bit 1 (not shown in FIG. 8), the direction of advance of the drill bit 1 being indicated by the arrows 33 in FIG. 8 is.
  • the outer cladding tube 5 has a projection 34 which is slidably mounted on the inner cladding tube 5 '.
  • a projection 29 is provided at the end of the inner cladding tube 5 'facing the drill bit 1, which can interact with the projection 34 of the outer cladding tube 5 in the extended state.
  • the first two cladding tube sections of both the outer and inner cladding tubes 5 and 5 ' are schematically indicated, again the first cladding tube section 5, seen in the direction of the drill bit 1, has a projection 34 at its end facing away from the drill bit 1, which in the extended state interacts with the projection 29 of the inner cladding tube 5 '.
  • the two outer cladding tubes 5 shown are not directly connected to one another, but are only connected via a sleeve 30 which firmly connects the two inner cladding tubes 5 ′ to one another.
  • on the two outer cladding tube sections 5 on the mutually directed end regions of the projections 31, 32 are provided, which can engage in corresponding recesses in the sleeve element 30. In the pushed-together state, both the outer cladding tube sections 5 and the inner cladding tube sections 5 ′ are thus firmly connected to one another by means of the sleeve 30.
  • the second one viewed from the direction of the drill bit 1 is rotated Cladding tube section 5 in relation to the sleeve 30 of the inner cladding tube 5 ', the projection 31 is brought out of engagement with the corresponding recess of the sleeve 30, whereupon the outer cladding tube 5 on the inner cladding tube 5 by further advancement of the drill bit 1 in the direction of arrow 31 5 'is guided in a sliding manner until the stops 29 and 34 provided on the cladding tubes 5 and 5' abut one another.
  • the length of the first cladding tube section 5 ' can also be used for lining a borehole, holding the outer cladding tube 5 at the end facing away from the drill bit 1 will subsequently counteract the advancing movement causes the projection 32 of the first outer cladding tube section 5 is torn from the corresponding recess of the sleeve 30 of the inner cladding tube 5 ' and the cladding tube section 5 of the outer cladding tube viewed in the direction of the drill bit 1 is slid along the first cladding tube section 5 'in the direction of the propulsion movement.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Drilling And Boring (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
  • Production Of Multi-Layered Print Wiring Board (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

Selon ce procédé de forage, notamment de forage percutant ou roto-percutant, et de revêtement de trous creusés dans le sol ou des matières rocheuses, on creuse un trou (13) par un mouvement percutant et/ou rotatif au moyen d'une couronne à diamants (1, 2, 3) montée sur un train de tiges (9) et on forme un revêtement au moyen d'une gaine tubulaire (5). Pendant le forage, au moins une gaine tubulaire (5, 5') couplée à la couronne de diamants (1, 2, 3) est axialement tirée par la couronne de diamants (1, 2, 3) dans le trou (13) et une fois le forage achevé, la couronne de diamants (3) est retirée au moins en partie avec le train de tiges (9) de la gaine tubulaire (5, 5'). Dans le dispositif de forage décrit, notamment de forage percutant ou roto-percutant, et de revêtement de trous creusés dans le sol ou des matières rocheuses, une couronne de diamants (1, 2, 3) montée sur un train de tiges (9) creuse un trou de forage par un mouvement percutant et/ou rotatif. La couronne de diamants (1, 2, 3) est divisée en deux parties dans le sens radial. Au moins une gaine tubulaire (5, 5') qui entoure le train de tiges (9) est située autour de la circonférence extérieure de la couronne de diamants (3), à son extrémité opposée à la surface de forage, et est reliée par liaison de forme à la couronne de diamants (1) par au moins un élément d'accouplement (6) de façon à être entraînée par traction dans le sens longitudinal du trou de forage (13).
PCT/AT1997/000247 1996-11-12 1997-11-12 Procede et dispositif pour forer et revetir en meme temps des trous Ceased WO1998021439A1 (fr)

Priority Applications (12)

Application Number Priority Date Filing Date Title
AT97911051T ATE217681T1 (de) 1996-11-12 1997-11-12 Verfahren und einrichtung zum gleichzeitigen bohren und auskleiden von löchern
AU48562/97A AU726332B2 (en) 1996-11-12 1997-11-12 Process and device for simultaneously drilling and lining a hole
EP97911051A EP0948701B1 (fr) 1996-11-12 1997-11-12 Procede et dispositif pour forer et revetir en meme temps des trous
IDW990329D ID21554A (id) 1996-11-12 1997-11-12 Proses dan alat untuk mengebor dan sekaligus melapis suatu lubang
DE59707305T DE59707305D1 (de) 1996-11-12 1997-11-12 Verfahren und einrichtung zum gleichzeitigen bohren und auskleiden von löchern
PL97333244A PL185256B1 (pl) 1996-11-12 1997-11-12 Sposób i urządzenie do wiercenia i osłaniania otworów
SK593-99A SK283483B6 (sk) 1996-11-12 1997-11-12 Spôsob vŕtania a zariadenie na vykonávanie spôsobu
CA002271655A CA2271655C (fr) 1996-11-12 1997-11-12 Procede et dispositif pour forer et revetir en meme temps des trous
HK00102661.4A HK1023611B (en) 1996-11-12 1997-11-12 Process and device for simultaneously drilling and lining a hole
JP52877197A JP3813177B2 (ja) 1996-11-12 1997-11-12 穴あけと穴のライニングとを同時に行うための方法および装置
SI9730372T SI0948701T1 (en) 1996-11-12 1997-11-12 Process and device for simultaneously drilling and lining a hole
US09/310,157 US6106200A (en) 1996-11-12 1999-05-12 Process and device for simultaneously drilling and lining a hole

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT197896A AT407895B (de) 1996-11-12 1996-11-12 Verfahren und einrichtung zum bohren und auskleiden von bohrlöchern
ATA1978/96 1996-11-12
ATA1065/97 1997-06-18
AT106597A AT408472B (de) 1997-06-18 1997-06-18 Verfahren und einrichtung zum bohren und auskleiden von löchern

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09/310,157 Continuation US6106200A (en) 1996-11-12 1999-05-12 Process and device for simultaneously drilling and lining a hole

Publications (1)

Publication Number Publication Date
WO1998021439A1 true WO1998021439A1 (fr) 1998-05-22

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PCT/AT1997/000247 Ceased WO1998021439A1 (fr) 1996-11-12 1997-11-12 Procede et dispositif pour forer et revetir en meme temps des trous

Country Status (16)

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EP (1) EP0948701B1 (fr)
JP (1) JP3813177B2 (fr)
KR (1) KR100338308B1 (fr)
CN (1) CN1079880C (fr)
AT (1) ATE217681T1 (fr)
AU (1) AU726332B2 (fr)
CA (1) CA2271655C (fr)
CZ (1) CZ296814B6 (fr)
DE (1) DE59707305D1 (fr)
ES (1) ES2176709T3 (fr)
HR (1) HRP970600B1 (fr)
ID (1) ID21554A (fr)
PL (1) PL185256B1 (fr)
SK (1) SK283483B6 (fr)
TR (1) TR199900983T2 (fr)
WO (1) WO1998021439A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000011302A1 (fr) * 1998-08-21 2000-03-02 Techmo Entwicklungs- Und Vertriebs Gmbh Dispositif de forage et de drainage de trous realises dans le sol ou la roche
WO2000020724A1 (fr) 1998-10-05 2000-04-13 Techmo Entwicklungs- Und Vertriebs Gmbh Gaine tubulaire pour dispositif de forage et d'ancrage
WO2001071152A1 (fr) * 2000-03-21 2001-09-27 Dht Technologies Limited Segment utilise pour un foret de sondeuse a carrotes et procede de fabrication
WO2002059448A1 (fr) 2001-01-25 2002-08-01 Techmo Entwicklungs- Und Vertriebs Gmbh Procede et dispositif pour faire des trous dans le sol ou dans de la pierre
WO2002088523A1 (fr) * 2001-04-26 2002-11-07 Techmo Entwicklungs- Und Vertriebs Gmbh Procede et dispositif de forage d'un trou et de fixation d'un ancrage dans un trou de forage
WO2003062599A1 (fr) 2002-01-22 2003-07-31 Techmo Entwicklungs- Und Vertriebs Gmbh Boulons d'ancrage a elements expansibles
EP0995878A3 (fr) * 1998-10-20 2003-10-29 VORSPANN-TECHNIK Ges.m.b.H. & Co. KG Boulon d'ancrage et puits de forage avec ledit boulon posé
US6722454B2 (en) 2000-02-24 2004-04-20 Techmo Entwicklungs- Und Vertriebs Gmbh Device for drilling, in particular percussion drilling or rotary percussion drilling, boreholes
WO2005031107A1 (fr) * 2003-10-01 2005-04-07 Techmo Entwicklungs- Und Vertriebs Gmbh Procede et dispositif de forage dans de la terre ou de la pierre
WO2005090753A1 (fr) * 2004-03-23 2005-09-29 Alwag Tunnelausbau Gesellschaft M.B.H. Procede et dispositif pour produire des ancrages precontraints
WO2006130889A1 (fr) 2005-06-07 2006-12-14 Alwag Tunnelausbau Gesellschaft M.B.H. Procede et dispositif pour le forage, notamment pour le forage par percussion ou par roto-percussion, d'un trou dans le sol ou la roche
WO2008064384A1 (fr) 2006-11-29 2008-06-05 Techmo Entwicklungs- Und Vertriebs Gmbh Dispositif de forage à percussion ou de forage rotopercutant dans un matériau rocheux
WO2008154669A1 (fr) 2007-06-19 2008-12-24 'alwag' Tunnelausbau Gesellschaft M.B.H. Procédé et dispositif pour percer un trou dans le sol ou dans un matériau rocheux et pour former un ancrage
WO2012101433A2 (fr) 2011-01-27 2012-08-02 Minova International Limited Dispositif de forage pour forage à percussion ou forage rotatif à percussion comprenant une gaine d'accouplement
DE102012000983A1 (de) 2012-01-20 2013-07-25 Minova International Ltd. Vorrichtung für ein Drainage-Bohr-System

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL1818499T3 (pl) 2006-02-09 2011-11-30 Gonar Sp Z O O Urządzenie do równoczesnego wiercenia i obudowania otworów strzałowych
DE202006003409U1 (de) * 2006-03-04 2006-08-10 Maschinenbau Kolk Gmbh Rohrschirm mit gesteckten Hüllrohren
FI20105983A0 (fi) * 2010-09-23 2010-09-23 Atlas Copco Rotex Ab Oy Menetelmä ja laitteisto uppoporaukseen
JP5883192B1 (ja) * 2015-09-18 2016-03-09 株式会社オーク 掘削ビット
CN106437522A (zh) * 2016-11-30 2017-02-22 淮南矿业(集团)有限责任公司 深水平、高地应力揭煤钻孔施工装置及方法
CN107012865A (zh) * 2017-03-31 2017-08-04 中国二十冶集团有限公司 锚杆防塌孔的施工方法
CN109667542B (zh) * 2018-12-28 2020-06-05 至永建设集团有限公司 破碎地层中多级分段非连续跟管钻进锚索施工方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3190378A (en) * 1962-09-18 1965-06-22 Sr Paul H Davey Apparatus for simultaneously drilling and casing a well hole
US3682260A (en) * 1969-05-30 1972-08-08 Gunter Klemm Rotary percussive drill and method
US3732143A (en) * 1970-06-17 1973-05-08 Shell Oil Co Method and apparatus for drilling offshore wells
US3901331A (en) * 1972-12-06 1975-08-26 Petroles Cie Francaise Support casing for a boring head
WO1994012760A1 (fr) * 1992-12-03 1994-06-09 Jaervelae Jorma Foreuse
DE4432710C1 (de) * 1994-09-14 1996-04-11 Klemm Bohrtech Zielbohreinrichtung zum horizontalen Richtbohren

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3190378A (en) * 1962-09-18 1965-06-22 Sr Paul H Davey Apparatus for simultaneously drilling and casing a well hole
US3682260A (en) * 1969-05-30 1972-08-08 Gunter Klemm Rotary percussive drill and method
US3732143A (en) * 1970-06-17 1973-05-08 Shell Oil Co Method and apparatus for drilling offshore wells
US3901331A (en) * 1972-12-06 1975-08-26 Petroles Cie Francaise Support casing for a boring head
WO1994012760A1 (fr) * 1992-12-03 1994-06-09 Jaervelae Jorma Foreuse
DE4432710C1 (de) * 1994-09-14 1996-04-11 Klemm Bohrtech Zielbohreinrichtung zum horizontalen Richtbohren

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000011302A1 (fr) * 1998-08-21 2000-03-02 Techmo Entwicklungs- Und Vertriebs Gmbh Dispositif de forage et de drainage de trous realises dans le sol ou la roche
US6431292B2 (en) 1998-08-21 2002-08-13 Techno Entwicklungs - Und Vertriebs Gmbh Device for drilling and draining holes in soil or rock
CZ298861B6 (cs) * 1998-08-21 2008-02-27 ,,ALWAG“ Tunnelausbau Gesellschaft mbH Zarízení k vrtání a drenážování der v zemine nebohornine
WO2000020724A1 (fr) 1998-10-05 2000-04-13 Techmo Entwicklungs- Und Vertriebs Gmbh Gaine tubulaire pour dispositif de forage et d'ancrage
US6397957B2 (en) 1998-10-05 2002-06-04 Techmo Entwicklungs-Und Vertriebs Gmbh Jacket tube for a drilling and anchoring device
CZ299258B6 (cs) * 1998-10-05 2008-05-28 ,,Alwag" Tunnelausbau Gesellschaft Mbh Obalová trubka pro zarízení k vrtání der a vytvárení ukotvení
EP0995878A3 (fr) * 1998-10-20 2003-10-29 VORSPANN-TECHNIK Ges.m.b.H. & Co. KG Boulon d'ancrage et puits de forage avec ledit boulon posé
US6722454B2 (en) 2000-02-24 2004-04-20 Techmo Entwicklungs- Und Vertriebs Gmbh Device for drilling, in particular percussion drilling or rotary percussion drilling, boreholes
WO2001071152A1 (fr) * 2000-03-21 2001-09-27 Dht Technologies Limited Segment utilise pour un foret de sondeuse a carrotes et procede de fabrication
WO2002059448A1 (fr) 2001-01-25 2002-08-01 Techmo Entwicklungs- Und Vertriebs Gmbh Procede et dispositif pour faire des trous dans le sol ou dans de la pierre
AU2002338538B2 (en) * 2001-04-26 2007-08-09 "Alwag" Tunnelausbau Gesellschaft Mbh Method and device for drilling a hole and for securing an anchorage in a bore hole
US7080697B2 (en) 2001-04-26 2006-07-25 “ALWAG” Tunnelausbau Gesellschaft m.b.H Method and device for drilling a hole and for securing an anchorage in a bore hole
CZ301100B6 (cs) * 2001-04-26 2009-11-04 ,,ALWAG“ Tunnelausbau Gesellschaft mbH Zpusob a zarízení pro vrtání der a pro upevnení ukotvení ve vrtané díre
CN100356035C (zh) * 2001-04-26 2007-12-19 阿尔瓦格隧道支架有限公司 钻孔和将锚定件固定于钻成的孔内的方法与装置
WO2002088523A1 (fr) * 2001-04-26 2002-11-07 Techmo Entwicklungs- Und Vertriebs Gmbh Procede et dispositif de forage d'un trou et de fixation d'un ancrage dans un trou de forage
US7004686B2 (en) 2002-01-22 2006-02-28 Techmo Entwicklungs- Und Vertriebs Gmbh Rock bolts with expandable element
WO2003062599A1 (fr) 2002-01-22 2003-07-31 Techmo Entwicklungs- Und Vertriebs Gmbh Boulons d'ancrage a elements expansibles
WO2005031107A1 (fr) * 2003-10-01 2005-04-07 Techmo Entwicklungs- Und Vertriebs Gmbh Procede et dispositif de forage dans de la terre ou de la pierre
WO2005090753A1 (fr) * 2004-03-23 2005-09-29 Alwag Tunnelausbau Gesellschaft M.B.H. Procede et dispositif pour produire des ancrages precontraints
US7320371B2 (en) 2004-03-23 2008-01-22 “ALWAG” Tunnelausbau Gesellschaft m.b.H. Method and device for producing pretensioned anchorings
HRP20060352B1 (hr) * 2004-03-23 2008-02-29 Alwag Tunnelausbau Gesellschaft M.B.H. Metoda i uređaj za izradu prednapetih sidrišta
WO2006130889A1 (fr) 2005-06-07 2006-12-14 Alwag Tunnelausbau Gesellschaft M.B.H. Procede et dispositif pour le forage, notamment pour le forage par percussion ou par roto-percussion, d'un trou dans le sol ou la roche
US7874380B2 (en) 2005-06-07 2011-01-25 “ALWAG” Tunnelausbau Gesellschaft m.b.H. Method and device for drilling, particularly percussion or rotary percussion drilling, a hole in soil or rock material
AU2006255521B2 (en) * 2005-06-07 2011-05-19 "ALWAG" Tunnelausbau Gesellschaft G.m.b.H. Method and device for drilling, particularly percussion drilling or rotary percussion drilling a hole in soil or rock material
WO2008064384A1 (fr) 2006-11-29 2008-06-05 Techmo Entwicklungs- Und Vertriebs Gmbh Dispositif de forage à percussion ou de forage rotopercutant dans un matériau rocheux
WO2008154669A1 (fr) 2007-06-19 2008-12-24 'alwag' Tunnelausbau Gesellschaft M.B.H. Procédé et dispositif pour percer un trou dans le sol ou dans un matériau rocheux et pour former un ancrage
WO2012101433A2 (fr) 2011-01-27 2012-08-02 Minova International Limited Dispositif de forage pour forage à percussion ou forage rotatif à percussion comprenant une gaine d'accouplement
DE102011120572A1 (de) 2011-01-27 2012-08-02 Minova International Ltd. Bohrvorrichtung zum Schlag- oder Drehschlagbohren mit Verbindungsmuffe
DE102012000983A1 (de) 2012-01-20 2013-07-25 Minova International Ltd. Vorrichtung für ein Drainage-Bohr-System
WO2013108051A2 (fr) 2012-01-20 2013-07-25 Minova International Limited Dispositif pour système de forage de drainage
WO2013108051A3 (fr) * 2012-01-20 2013-11-21 Minova International Limited Dispositif pour système de forage de drainage

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CN1079880C (zh) 2002-02-27
AU4856297A (en) 1998-06-03
ES2176709T3 (es) 2002-12-01
KR20000053240A (ko) 2000-08-25
CZ162399A3 (cs) 2000-06-14
HRP970600B1 (en) 2002-06-30
PL333244A1 (en) 1999-11-22
EP0948701B1 (fr) 2002-05-15
ID21554A (id) 1999-06-24
JP2001503486A (ja) 2001-03-13
CZ296814B6 (cs) 2006-06-14
HK1023611A1 (en) 2000-09-15
DE59707305D1 (de) 2002-06-20
CN1237222A (zh) 1999-12-01
ATE217681T1 (de) 2002-06-15
CA2271655C (fr) 2006-04-18
AU726332B2 (en) 2000-11-02
JP3813177B2 (ja) 2006-08-23
HRP970600A2 (en) 1999-08-31
CA2271655A1 (fr) 1998-05-22
SK59399A3 (en) 2000-03-13
PL185256B1 (pl) 2003-04-30
TR199900983T2 (xx) 2000-07-21
KR100338308B1 (ko) 2002-05-27
EP0948701A1 (fr) 1999-10-13
SK283483B6 (sk) 2003-08-05

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