DE102014005773A1 - Single- and two-phase self-drilling coat heavy-duty anchor as cartridge or injection anchor in turn-key design. Production and setting process - Google Patents

Single- and two-phase self-drilling coat heavy-duty anchor as cartridge or injection anchor in turn-key design. Production and setting process Download PDF

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Publication number
DE102014005773A1
DE102014005773A1 DE102014005773.9A DE102014005773A DE102014005773A1 DE 102014005773 A1 DE102014005773 A1 DE 102014005773A1 DE 102014005773 A DE102014005773 A DE 102014005773A DE 102014005773 A1 DE102014005773 A1 DE 102014005773A1
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Prior art keywords
anchor
tube
cartridge
adhesive
heavy
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DE102014005773.9A
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German (de)
Inventor
Werner Paul Berwald
Elnar Berwald
Dithmar Berwald
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Werner Paul Berwald
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Priority to DE102014005773.9A priority Critical patent/DE102014005773A1/en
Publication of DE102014005773A1 publication Critical patent/DE102014005773A1/en
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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
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00Setting anchoring-bolts
    • E21D20/02Setting anchoring-bolts with provisions for grouting
    • E21D20/025Grouting with organic components, e.g. resin
    • 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
    • E21D21/0053Anchoring-bolts in the form of lost drilling rods

Abstract

As a one- or two-phase cartridge, injection, multi-jacketed heavy duty anchor trained hollow bar composite anchor, consisting of several welded pipe layers, which are connected with radial teeth, for the rotational impact resistant use in mining, tunneling, underground and rock, is at least partially Cartridge adhesive stored in a hollow rod bore, at least with a combi-shell mixer provided on the anchor head side, or in combination with a scraper bit and optionally with a drill bit, so that the adhesive cartridge is pressed out in a few seconds with a piston positioned on the armature foot to achieve a setting process. The outer surface of the sheath heavy duty anchor is provided with a rolled, screwable profiling. An elastic friction-resistant connection for receiving rock movements, is achieved between the inner and outer tube with the rolled-radial toothing, between the tube shells. In the rotational impact-resistant design of the anchor system, with the cooling water for the drill bit, the inserted adhesive cartridge in the inner tube of the anchor system, secured against vibration and rotational shock. The set anchor can be further reinforced in the squeezed cartridge magazine with a solid rod. The set two-phase cartridge, injection, multi-jacketed heavy duty anchor is set after curing of the adhesive mixture, with a flat-fitting anchor beam and the integrated biasing member so that the anchor preload absorbed by the anchor head, an accident-causing anchor protrusion in the guideway avoided and the tension forces outside the anchor hole, are derived in the mountains. To achieve the anti-vaulting, the volume of the adhesive cartridge for filling all drilled joints and gaps in the case of cartridge anchors is greater than the volume of the anchor ring space.

Description

  • The invention relates to a one-or two-phase cartridge or injection anchor trained coat heavy duty anchor, as a hollow bar composite anchor, which is used optionally as a single-coat anchor; or as a double jacket with an outer and supporting inner tube, which also serves as a cartridge magazine and with channels for cooling the drill bit and with a triple jacket, meets all load requirements in mining and tunneling.
  • The outer tubes are given a rolled, screwable profiling and can be used as a cartridge injection anchor or as injection drill anchors, as well as a rolled internal toothing, for connection to the inner or intermediate tube, so that the sheath heavy-duty anchor can react elastically during rock movements.
  • As a double-jacket heavy-duty anchor, the outer tube is connected to the inner tube, via the toothed frictional engagement on the entire tube length to a load-bearing unit so that it can be elastically absorbed rock movements and all forces acting. With the rolled-up cooling channels of the inner tube, which can also serve as a load-bearing component as a cartridge magazine, the cooling of the drill bit is achieved, which in combination with the shell mixer the seconds fast Auspressvorgang the adhesive mixture in the anchor ring space, without pressure booster causes all outlet openings in the shell mixer in the area total were sized larger than the cross section of the adhesive cartridge.
  • The rolled-up screw profiling further acts as a mechanical rod and dispenser for the cartridge or injection adhesive in the anchor ring space and with the mixer rotation generated by the carriage, creates an extruder effect for better glue mixing and filling of all drilled gaps and fractures. The anchor system can be used in mining, tunneling, underground and rock construction. With the pre-chamber method, early formation of vaulting is achieved by rapid adhesive premixing for securing line or tunnel propulsion.
  • With the double-jacket design and in the ges. Length of friction-displaced cooling channels between outer and inner tube, is the first time a single-phase impact-resistant cartridge shell heavy duty anchor, the mining and tunneling available.
  • In this anchor system, the adhesive cartridge is secured against destruction by the cooling water flowing through the boreholes of the shell mixer in the cooling channels to the drill bit during the rotationally striking drilling process. The Auspressvorgang with the built-in piston begins when the self-drilling anchor, the end position is reached in the anchor hole.
  • Hollow bar anchors, as single- or two-phase anchors with two-component adhesives are also known as injection anchors for stabilizing spaces in mining and tunneling, in the underground and open pit of rock and retaining walls with and without an additional adhesive magazine and in the writings DE 103 36 043 A1 . DE 103 36 040 A1 . DE 103 21 175 B3 . DE 103 01 968 A1 . DE 100 17 763 A1 . DE 100 17 751 A1 . 100 17 750 A1 . DE 299 00 432 U1 . US 4,055,051 . DE 31 00 730 A1 ., 10 2006 002 215.7 . DE 10 2005 004 364.2 and DE 2006 006 748.7 and DE 10 2006 011 652.6 described in detail.
  • Depending on the hardness of the rock, the anchoring bore can be produced by wet or dry drilling with the hollow bar composite anchors listed. An additional irrigation or suction channel for the removal of drill cuttings from the bore is required in these systems, if they are single-phase anchor systems.
  • In a two-phase system is so far after the preparation of the anchor hole from the inner tube, which serves as an adhesive magazine and in which the adhesive / hardener stored in separate tubes in the annular space between the anchor and bore, with the help of centrally installed staircase or step mixers with great time of several minutes, the cartridge or injection adhesive pressed into the anchor ring space.
  • These known composite anchors can be used as a single-phase anchor only rotating, for the time-consuming production of an anchor hole, as with a rotational impact drilling method, the only two times suspension of the adhesive magazine with the plastic sleeves is destroyed immediately and the system has a remaining in the well and thus lost drill bit. The distinguishing features of the various procedures are shown below with the business qualifications:
    Self-drilling, single-phase hollow-bar composite anchors with integrated adhesive magazine are known and are used as a combined system boring bar / anchor. The anchor is equipped as a single phase anchor system with a lost drill bit, the outer shape of the drill rod / anchor, with the rolled thread at low pitch, is provided for the removal of cuttings during drilling from the anchor hole to prevent overheating of the drill bit. To prevent this, however, can only be achieved with an excessive cooling water pressure.
  • The hollow bar includes an additional inner tube containing the pre-assembled adhesive and hardener in separate tubes. Between inner tube and inner diameter of the hollow rod is the radial flushing channel, which is used for flushing with air, water or water mixture WaLu, during the drilling process and is suspended only sectionally at two points in the system inner part.
  • In order to obtain the same diameter of the drill heads on the hollow bar in the blasting, the volume of the adhesive cartridge must be reduced so much that with the remaining adhesive excess, drilled crevices and joints, barely filled with the adhesive cartridge to a good vault formation To achieve safety of propulsion.
  • In order to provide the required adhesive surplus, a larger diameter would be required for this single phase self drilling system. In the production of the anchor holes, however, then up to 50% more mountains / bore is comminuted with twice the time and the use of these systems for the route or tunnel propulsion, thus uneconomical.
  • After the bore has been produced, the adhesive and hardener, as a tubular cartridge with a piston and high-pressure water, are pressed out of the additional inner tube into the anchor ring space via the static, with a small diameter, centrally installed step or stair mixer.
  • The adhesive mixture exits only through two small holes in the drill head and fills the annulus between the anchor and the borehole wall for curing. Due to their construction, these self-drilling composite anchors with integrated inner tube as adhesive magazine are only suitable for rotary drilling processes and require only 0.8 dm 3 over 3 minutes for the extrusion process. Therefore they are not ideal for fast curing adhesive cartridges for early vaulting suitable.
  • Rotary drilling can also be used underground only to a limited extent, depending on the rock properties and requires a high cooling effort, which must be increased in harder rock formations to prevent the burning and annealing of carbide cutters in the drill bit.
  • With the exorbitant water consumption / Anchor hole, can by exploring a water-sensitive mountain formation, a propulsion in the ges. Performance sensitive, be disturbed by the swelling of the recumbent.
  • The suspended in the hollow bar anchor centrally in plastic parts tube as adhesive magazine, would continue to fail in a rotationally impacting use, by the triggered vibrations total, since it is fixed only at two points. A use of in the ges. Construction costly and therefore expensive anchor in rock properties that do not allow rotating drilling and where this self-drilling anchor, must be introduced later in a previously beating - or Drehschlagend produced wellbore, is economically not justified for the above reasons.
  • Injection anchors are in previously prepared holes to be introduced cartridge anchor without lost drill bit, known. In the injection process, an adhesive or mortar mixture, in the anchor ring space, is compressed by the hollow rod. In the setting time, the static staircase or step mixer centrally arranged in the hollow bar has a very disadvantageous effect, with a low throughput volume, with which the desired increase in performance of the injection method is slowed down.
  • With the injection process, an additional amount of adhesive mixture in the hollow bar anchor is lost unused and a subsequent anchor reinforcement with an additional cartridge and a corrugated solid rod, is then no longer possible. These disadvantages are not compensated by the very good quality of installation of the anchor in practice, since the mechanical engineering effort is associated with great costs.
  • All adapters, valves and mixer devices, designed for two-component adhesives, cure quickly with improper use and prolonged downtime with adhesive residues and thus unusable. These disadvantages can be countered only with a very expensive, uneconomical spare parts inventory.
  • These aforementioned disadvantages are eliminated with the here presented single- or two-phase cartridge or injection mantle heavy duty anchor with the combination shell mixer drill bit, or as injection anchor with a scraper, since none of the methods described above, the current business and safety requirements fully meets the need for the development of an alternative sheath-heavy-duty anchorage system, with the technical and economic advantages:
    • a.) Rotating cartridge or injection anchor with drill bit and combi-shell mixer, for use in all rock formations.
    • b.) Outer and inner ear is a loadable anchor unit
    • c.) and the inner ear also serves as a cartridge magazine.
    • d.) With the reduction of anchor types,
    • e.) a reduction in storage is achieved.
    • f.) Anchor extensions do not require larger diameter couplings,
    • g.) thereby reducing the cutting cross section / anchor hole.
    • h.) Use as cartridges or injection anchor.
    • i.) Securely formed vaulting by the combi-shell mixer with the drill bit,
    • j.) thereby more deductions in the drive / layer.
    • k.) Glue consumption is reduced by up to 50% / anchor.
    • l.) The toothed double jacket, adapts itself to the mountain movement elastic.
    • m.) The economy is achieved with the production of meter goods.
    • n.) A load adjustment is achieved with different materials for the inner or outer tube.
    • o.) A cartridge anchor, with the squeezed inner tube, can be further reinforced with a solid rod and additional cartridge.
    • p.) The rolled profiling serves as a thread and promotes the cuttings more quickly from the anchor ring space.
    • q.) With the jacket mixer, the drill bit is cooled to the maximum and an annealing of the cutting edges is prevented!
    • r.) The volume of the adhesive cartridge is greater than the volume of the anchor ring space.
  • The aim of the subject invention is to provide a trained as a self-drilling single- or two-phase hollow rod composite anchor cartridge or injection anchor, with the previously time-consuming and costly, and with quality and security problems afflicted composite anchor systems for heavy duty operations, by a versatile usable anchor system replaced and thus at the same time the storage is reduced.
  • The anchor system provides a significant minimization of installation time, increased performance with good quality paving, the reduction of personnel costs by mechanization in the drive and the reduction of the risk of accidents with an early vault formation in the route or tunneling.
  • In addition, a method for producing a trained one- or two-phase cartridge or injection anchor, as a jacketed heavy-duty anchor with economical production and function for reducing the types of anchors and storage is proposed.
  • This inventive goal is achieved by a trained one- or two-phase cartridge or injection mantle heavy duty anchor, with a pre-assembled pressure or stress adhesive for thin bed mixing, with an anchor blade side provided Ausräumschneide or drill bit, in combination with the shell mixer.
  • The large throughput capacity of an adhesive mixture with the shell mixer during the extrusion process in a few seconds, is achieved with the arrangement of several extrusion openings, which are greater in total than the diameter of the inserted adhesive cartridge in the shell mixer. The squeezing process is triggered by an ejector piston positioned on the anchor foot when the depth of the anchor bore is reached with the self-drilling anchor and the cooling of the drill bit has been adjusted in combination with the jacket mixer.
  • The previously used staircase or step mixer, with the exorbitant Auspresszeiten of over 300 seconds / anchor for only 0.8 dm 3 two-component adhesive with 100 bar, omitted, since so no fast, supporting vaulting, not yet developed propulsion, to secure the team can be achieved and is replaced by the developed, instant-acting jacket mixer.
  • The maximum ejection opening in the shell mixer, with the cutting edges to the opening of the cartridge and hardener hose is achieved with different options in the arrangement and in the trained trap area, the squeezed cartridge hoses for the ges. Adhesive volume, harmless for the adhesive mixture added.
  • The screwable external profile of the sheath heavy-duty anchor as a cartridge anchor, acts as a mixing transport and extruder spiral, for the squeezed adhesive to a thin-bed mixture in the anchor ring space and caused by the rotational movement of the carriage with the ges. Anchor, at any point in the anchor hole with the additional generated extruder effect by the mixer spiral in the anchor ring space, the filling of all cut gaps and joints, as a concomitant thin-bed mixing process to Ankerfuß, with the flow channel formed by the interruption of screwed aufgewalzten thread profiling created with the weld.
  • Thus, an intensive bonding with the mountains is achieved, which with an early onset of vaulting, in the unsecured tee in the route or tunnel propulsion effect.
  • The prefabricated pressure or stress adhesive, with an extrusion piston introduced, which simultaneously serves in the end position for the inflowing pressurized water, as a gate valve in the extrusion process, together with the accordion-like pressed and deferred adhesive and hardening hose, in the trap of the shell mixer of the drill bit or scraper blade.
  • With the invention, as a single- or two-phase cartridge or injection mantle heavy duty anchor, it is now possible, with a smaller anchor diameter, a higher anchor power / m 2 , with up to 50% lower rock chip / anchor hole and with the larger adhesive throughput of 0.5 dm 3 / m anchor length, a maximum extrusion time of 10 seconds / anchor of 2.50 m, with the mixing process in the anchor ring space, by the rotational movement of the carriage to realize a minimum settling time / anchor. This is also the interruption of the screw thread / mixer spiral, as a flow channel through the weld at 12 o'clock at.
  • After the curing time of the pressed-out cartridge adhesive, the tightening of the sheath heavy-duty anchor until the breaking pin safety device responds, with the integrated tensioning element of the anchor traverse, is carried out with a defined torque.
  • The coat heavy duty anchor described here, with the fast and supportive training of a vault ideal for a full mechanization or automation of the ges. Insertion process with the drill carriage from the secured room, in the still unsecured area of a route or tunnel driving and for the substantial shortening of the ges. Work process suitable, so that risks to personnel by nachbrechendes rock, when handling in unsecured area of propulsion, be avoided.
  • The set cartridge anchor with the squeezed cartridge magazine can, as it is completely empty, with an inserted short cartridge and a selected ribbed solid rod up to 40% resilient in the subsequent stretching or tunnel area to geological requirements are enhanced.
  • With a hexagonal, plate spring-like shaped anchor beam, a defined bias is added after setting the sheath heavy-duty anchor, the outside of the anchor hole all forces, while the anchor hole gently, for bracing the two-phase cartridge mixing anchor, laterally in the mountains and supports with three statically determined areas far outside the anchor hole on the mountains and digs into the mountain surface with three statically determined edges.
  • The size and bearing surface of the anchor beam depends on the specific strength and nature of the encountered mountains.
  • The bearing of the anchor nut in the anchor beam, is spherical and can adapt to the mountain surface in any situation, the set anchor hole subsequently during the bracing process.
  • The use of the anchor beam with the sheath heavy duty anchor, as pre-stressed free-play anchor, is particularly suitable for suspension of loads with static and dynamic loads for EHB and EMTS conveyors via a screwed fork pin, with all lateral forces when receiving turnbuckles or chains, in the mountains are derived.
  • Advantageous developments of the sheath heavy-duty anchor according to the invention can be found in the associated subject subclaims.
  • The subject invention is illustrated by means of embodiments and will be described as follows. Show it:
  • 1 the cross-section of a self-drilling cartridge single-shell heavy duty anchor, with screwable outer profile and internal cooling channels.
  • 2 the cross section of a double-jacketed heavy duty anchor with toothed inner and outer tube, as injection anchor.
  • 3 the cross section of a three-sheath heavy duty anchor with toothed inner-middle and outer tube, as a cartridge anchor.
  • 4 the cross section and side view with a longitudinal section through an anchor extension for a double-jacketed heavy duty anchor, with the threaded connections.
  • 5 the view and longitudinal section of an anchor head with the combination shell mixer / drill bit and double-jacketed heavy duty anchor ,.
  • 6 the longitudinal section through an anchor hole with a double-jacketed heavy-duty anchor in the exemplary embodiment of a combination jacket mixer with scraper blade and the antechamber formed in the anchor hole.
  • 7 the cross-section of a double-jacketed heavy-duty anchor in rotational impact resistant design, with the cooling channels rolled in the outer jacket and the toothing between the outer and inner tubes.
  • 8th the transverse and longitudinal section of a double-jacketed heavy-duty anchor in rotationally impact-resistant design, with the rolled channels in the inner jacket, a drill bit with shell mixer and a reflux disc.
  • 9 the cross-section of a double-jacketed heavy-duty anchor in rotationally impact resistant design, with the cooled in the inner tube cooling channels. In the assembly process, the outer and inner tubes, as a Kieber magazine, become a load-bearing anchor unit.
  • description
  • 1 shows the cross-section, as a self-drilling cartridge single-jacketed heavy duty anchor, in an anchor hole 1 trained hollow bar composite anchor 2 , in the anchor ring room 3 with the rolled inner cooling channels 4 and the rolled, screw thread profiling 5 as a mixer spiral 6 with which through the weld 7 formed flow channel 8th ,
  • 2 shows the cross section of a double-jacketed heavy-duty anchor, formed hollow bar composite anchor 9 with a double jacket 10 , The inner tube 11 engages with the radial external toothing 12 in the radially arranged internal toothing 13 of the outer tube 14 in such a way that with geological transverse loads, the anchor system 9 , with an elastic movement can follow. The outer tube 14 has a rolled, screw thread profile 15 in the area of the weld 16 with a manufacturing distance 17 , a flow channel 18 , for faster distribution of the eingepumten / extruded adhesive mixture 19 in the anchor ring space 20 formed.
  • 3 shows the cross section of the triple-jacketed heavy duty anchor 21 , trained hollow bar composite anchor. The inner tube 22 engages with the radial external toothing 23 in the radially arranged internal toothing 24 of the central tube 25 , The center tube 25 in turn engages with the radial external toothing 26 in the internal toothing 27 of the outer tube 28 in such a way that with geological transverse loads, the anchor system 21 can follow with an elastic movement. The outer tube 28 has a rolled, screw thread profile 29 in the area of the weld 30 with a manufacturing distance 31 , thereby a flow channel 32 , for faster distribution of the eingepumten adhesive mixture 33 in the anchor ring space 34 is trained. The weld 35 of the inner tube 22 , as well as the weld 36 of the central tube 25 and the weld of the outer tube 30 , are added together with the anchor assembly offset by 180 °. The joining is done by the continuous production of the inner tube 22 with the weld 35 and the external teeth 23 , The center tube 25 then becomes sectional in length, the anchor lengths of the inner tube 22 , in U-shape across the mesh of the gears 23 and 24 on the inner tube 22 deferred, pressed in a roller conveyor and with the weld 36 welded. The same procedure then takes place with the outer tube 28 and the center tube 25 / Inner tube 22 to the triple-jacketed heavy duty anchor 21 ,
  • 4 shows view, longitudinal and cross section of an anchor extension 37 , with the double jacket 38 for double-jacketed heavy duty anchor 9 , with the inner tube 39 and the outer tube 40 with the rolled-on screw thread profiling 41 , The inner tube 39 Depending on the dimensions of the anchor extension 37 , with an outer tube 40 connected so that the outer tube 40 positioned with the inner tube 39 over the rolled-up interior 42 and external teeth 43 of the foreign 40 and inner tube 39 , is offset so that while the anchor extension 37 with the external thread 44 of the inner tube 39 and with the internal thread 45 be exposed for editing. For lateral forces in geological shifts, an elastic composite of the anchor tubes 39 and 40 with the gears 42 and 43 guaranteed. The longitudinal connection of the inner 39 and outer tube 40 , is used with the welds offset by 180 ° 46 and 47 , reached.
  • 5 shows the exemplary anchor head 48 to the coat heavy duty anchor 2 , with an exemplary drill bit 49 with an internal thread 50 on the external thread 51 of the inner tube 9 is screwed on and against the outer tube 12 sets. The outer tube 12 , with the inner tube 9 is from the holes 52 of the sheath mixer 53 interspersed, which are larger in area than the clear cross-section 54 it inner tube 9 , The between the drill bit 49 and the sheath mixer 53 formed storage room 55 , In the case of cartridge anchors, the shell of the cartridges, which has been pressed out by the ejection piston, picks up, which does not interfere with the pressed out adhesive in the anchor ring space 3 can mix to the carrying capacity of the coat heavy duty anchor 2 to reduce.
  • 6 shows the built-in double-jacketed heavy duty anchor 2 , in an anchor hole 56 , with the outside 14 and inner tube 11 , with the drill bit 49 , the coat mixer 52 with the pressed out adhesive mixture 57 in the antechamber 58 , The adapter 59 the drill carriage 60 now push the double-jacketed heavy duty anchor 2 , with the anchor nut 61 , the anchor crossbar 62 in an anchor hole 56 , With the extruder effect by an opposite rotational movement to the thread profiling 5 with the drill mount 60 , the filling is filled with the pressed out adhesive mixture 57 in all drilled clefts and crevices 63 , until the attachment of the anchor beam 62 to the mountains 64 reached.
  • 7 shows the cross section of a rotary impact resistant double-jacketed heavy duty anchor 65 , with the glue cartridge 66 in the inner tube 67 , with the externally rolled radial ribbing 68 , In the left half, the outer tube sets 69 , with the rolled inner cooling channels 70 at the junction with the webs 71 on the rolled ribbing 68 of the inner tube 67 , In the right version, will increase the cooling channels 70a also the ribbing 68 in the area of the cooling channels 70a spared. The externally rolled screw thread profile 72 that with the weld 73 with the manufacturing distance 74 , as a mixer channel 75 is interrupted. The glue cartridge 66 is used during the drilling process with the self-drilling self-drilling double-jacketed heavy-duty anchor 65 , from the flowing cooling water 76 over the holes 52 in the jacket mixer 53 protected against destruction and with water pressure after setting the anchor hole 77 in the anchor ring space 78 with an extrusion piston 79 , about the shell mixer 53 in the anchor ring space 78 pressed.
  • 8th shows the transverse and longitudinal section of a rotary impact resistant double-jacket heavy duty anchor 80 , with the glue cartridge 66 in the inner tube 81 , with the outside rolled cooling channels 82 coming from the outer tube 83 , with the rolled thread-like profiling 84 , with the roller assembly friction-resistant over the ribs 85 are connected. The longitudinal section shows the outer tube 83 with the rolled thread-like profiling 84 , the inner tube 81 with the cooling channel 82 , the reflux disc 86 with the non-return lip 93 that of the sheath mixer 87 with the drill bit 88 so closed when the extrusion piston 79 the glue cartridge 66 over the shell mixer 87 in the anchor ring space 89 pressed. This puts the reflux disc 86 with the non-return lip 93 by the extrusion pressure, to the trailing edge 90 of the inner tube 81 and thus prevents the return of the cartridge adhesive 66 in the cooling channels 82 of the inner tube 81 , About the holes 91 in the jacket mixer 87 , which are larger in area than the cross-section of the adhesive cartridge 66 , is the glue cartridge 66 in a few seconds in the anchor ring space 89 pressed. The squeezed cartridge hoses 92 be in storage space 55 caught and can be with the cartridge adhesive 66 do not mix. The volume of the adhesive cartridge 66 is sized larger than the volume of the anchor ring space 3 . 20 . 34 . 78 and 89 to even with the drill bit 49 . 88 , broken clefts and crevices 63 in the mountains 64 to fill the vault safely.
  • 9 shows the cross section of a rotary impact resistant double-jacket heavy duty anchor 80 , with the glue cartridge 66 in the inner tube 81 , with the outside rolled cooling channels 82 coming from the outer tube 83 , with the rolled thread-like profiling 84 , with the roller assembly friction-resistant over the gears 85 is connected after the inner tube 81 with the weld 98 at the 6 o'clock point from the U-arch shape 97 of the outer tube 83 with the internal toothing 100 is recorded. With the weld 99 , becomes the outer tube 83 closed and the weld bead 101 does not have to be removed because in the cooling channel 95 enough space between the rolled thread-like profiling 84 , for holding the welding bead 101 is available. In this combination, the external 83 with the inner tube 81 , to a load bearing and carrying pipe unit, with the internal teeth 85 of the outer tube 83 , to the rotary impact-resistant double-jacketed heavy duty anchor 80 is connected.
  • LIST OF REFERENCE NUMBERS
  • 1
    anchor hole
    2
    Coat Heavy Duty Anchor Hollow Bar Xings
    3
    Anchor ring space, too 2
    4
    Cooling channels, inside, too 2
    5
    Thread profiling, screwable, too 2
    6
    Mixer spiral, too 2 . 5
    7
    Weld, too 2
    8th
    Flow channel, too 2
    9
    Jacketed heavy duty anchors Hollow Bar Xings
    10
    Double jacket, too 9
    11
    Inner tube, too 10
    12
    External toothing, too 11
    13
    Internal toothing, too 14
    14
    Outer tube, too 10
    15
    Thread profiling, screwable, too 14
    16
    Weld, too 14
    17
    Manufacturing distance, too 16
    18
    Flow channel, too 14
    19
    Glue mixture, too 9
    20
    Anchor ring space, too 9
    21
    Triple jacket heavy-duty anchor hollow rod shear connectors
    22
    Inner tube, too 21
    23
    External toothing, too 22
    24
    Internal toothing, too 25
    25
    Center tube, too 21
    26
    External toothing, too 25
    27
    Internal toothing, too 28
    28
    Outer tube, too 21
    29
    Thread profiling, too 28
    30
    Weld, too 28
    31
    Manufacturing distance, too 30
    32
    Flow channel, too 28
    33
    Glue mixture, too 21
    34
    Anchor ring space, too 21
    35
    Weld, too 22
    36
    Weld, too 25
    37
    Anchor extension, too 9
    38
    Double jacket, too 37
    39
    Inner tube, too 37
    40
    Outer tube, too 37
    41
    Thread profiling, too 37
    42
    Internal toothing, too 40
    43
    External toothing, too 39
    44
    External thread, too 39
    45
    Internal thread, too 40
    46
    Weld, too 37
    47
    Weld, too 37
    48
    Anchor head, too 1
    49
    Drill bit, too 48
    50
    Internal thread, too 49
    51
    External thread, too 9
    52
    Holes, too 53
    53
    Combi sheath mixer, too 52
    54
    Cross section, inner tube, too 9 . 66
    55
    Storage room, too 19 . 33
    56
    Anchor hole, too 2 . 9 . 21
    57
    Glue mixture, too 55
    58
    Antechamber, too 1
    59
    Adapter, too 2 . 9 . 21 . 60
    60
    Drill mount, too 2 . 9 . 21
    61
    Anchor nut, too 2 . 9 . 21
    62
    Anchor beam, too 2 . 9 . 21
    63
    Clefts and crevasses, too 64
    64
    Mountains, too 63
    65
    Rotational impact resistant double jacket, heavy duty anchor
    66
    Glue cartridge, too 65 . 80
    67
    Inner tube, too 64
    68
    Gearing, rolled on the outside, too 67
    69
    Outer tube, too 65
    70
    Cooling channel, too 69
    70a
    Cooling channel, too 69
    71
    Footbridges, too 69
    72
    Thread profiling, too 69
    73
    Weld, too 69
    74
    Manufacturing distance, too 69
    75
    Mixer channel, too 69
    76
    Cooling water, too 70
    77
    Anchor hole, too 64
    78
    Anchor ring space, too 77
    79
    Extrusion piston, too 66
    80
    Rotational impact resistant double jacket, heavy duty anchor
    81
    Inner tube, too 80
    82
    Cooling channels, too 81
    83
    Outer tube, too 80
    84
    Thread profiling, rolled on, too 83
    85
    Internal toothing, too 81
    86
    Rückflusscheibe, too 80
    87
    Sheath mixer, too 88
    88
    Drill bit, too 80
    89
    Anchor ring space, too 80
    90
    End edge, too 81
    91
    Bore, too 87
    92
    Cartridge hose, too 66
    93
    Return lip, too 86
    94
    Cooling water inflow, too 81
    95
    Cooling water drain with cuttings, too 89
    96
    Squeezing process, adhesive cartridge to the shell mixer, too 87
    97
    U-bow shape, too 83
    98
    Weld, too 81
    99
    Weld, too 83
    100
    Internal toothing, too 83
    101
    Weld bead, too 99
    102
    Anchor reinforcement, after pressing the adhesive cartridge, too 66 . 96
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • DE 10336043 A1 [0007]
    • DE 10336040 A1 [0007]
    • DE 10321175 B3 [0007]
    • DE 10301968 A1 [0007]
    • DE 10017763 A1 [0007]
    • DE 10017751 A1 [0007]
    • DE 10017750 A1 [0007]
    • DE 29900432 U1 [0007]
    • US 4055051 [0007]
    • DE 3100730 A1 [0007]
    • DE 102006002215 [0007]
    • DE 102005004364 [0007]
    • DE 2006006748 [0007]
    • DE 102006011652 [0007]

Claims (10)

  1. Heavy duty anchor, designed as a cartridge injection or IBO anchor trained rotationally stable hollow rod composite anchor ( 2 ), as a multiple jacket, can be used in mining, tunneling and rock construction, with at least partially in the inner tube ( 11 ) embedded one-component adhesive mixture ( 19 ), at least one combi-shell mixer ( 52 ) and a Ankerfußseitig positioned extrusion piston, wherein the outer tube ( 14 . 28 . 40 . 69 . 83 ) of the impact-resistant mantle heavy duty anchor ( 9 . 21 . 65 . 80 ), with a rolled-on, single or multi-start screwable mixer spiral ( 6 . 15 . 29 . 41 . 72 . 84 ) is characterized in that the outer tube ( 14 . 28 . 40 . 69 . 83 ) or inner tube ( 11 . 22 . 39 . 67 . 81 ) with rolled-in inner or outer cooling channels ( 70 ) for the drill bit ( 48 . 49 . 88 ), with the combi-shell mixer ( 52 ), the inner tube ( 67 ) or the outer tube ( 69 ) inside, over a rolled-up toothing ( 68 ) vibration resistant, is connected as a load-bearing component. With the cooling water pressure ( 76 ), the inserted adhesive cartridge ( 66 ) in the inner tube ( 67 ), until the end of the rotationally impacting drilling process, vibration-resistant, until with the positioned piston ( 79 ) above the combi-shell mixer ( 53 ) a squeezing process through the holes ( 52 ) is initiated. The holes ( 52 ) in the combined shell mixer ( 53 ) are larger in area than the inner cross section ( 54 ) of the inner tube ( 9 ) and designed so that with the edges of the holes ( 52 ) the adhesive and hardener hose ( 92 ) is slit open and the pressurized Auspressvorgang ( 96 ) guaranteed. The squeezed concertina-like glue and hardener tube ( 92 ) of the adhesive cartridge ( 66 ) in the memory space ( 55 ) of the combined shell mixer ( 53 ) in front of the drill bit ( 48 . 49 . 88 ) is taken in such a way that mixing with the extruded cartridge adhesive ( 66 ) in the anchor ring space ( 3 . 20 . 34 . 78 . 89 ) can not be done.
  2. Sheath heavy-duty anchor, according to claim 1, characterized in that, with the anchor extension ( 37 ) no pipe coupling is required and the outer pipe ( 14 . 28 . 69 . 83 ) or inner tube ( 11 . 22 . 39 . 67 . 81 ) to increase the anchor load, consists of a higher quality material.
  3. Sheath heavy-duty anchor, according to one of claims 1 and 2, characterized in that the triple-jacketed heavy-duty anchor ( 21 ) with the rolled-up toothings ( 23 . 24 . 26 . 27 ) between the interior ( 11 . 22 . 39 . 67 . 81 ) Medium- ( 25 ) and outer tube ( 14 . 28 . 69 . 83 ) Mountain movements, elastically absorbs.
  4. Sheath heavy duty anchor, according to one of claims 1 to 3, characterized in that the adhesive volume with a preselected subset of the cartridge adhesive, ( 66 ) the mountain strata ( 64 ), and in the combination of the sheath mixer ( 53 ) with the drill bit ( 49 ) a memory space ( 55 ) for the extruded adhesive and hardener tubes ( 92 ) is formed and after the Auspressvorgang ( 96 ) the set anchor with a solid rod ( 102 ) in the inner tube ( 11 . 22 . 39 . 67 . 81 ) can be strengthened.
  5. Sheath heavy-duty anchor, according to one of claims 1 to 4, characterized in that the outer tube ( 14 . 28 . 69 . 83 ) inside, or the inner tube ( 11 . 22 . 39 . 67 . 81 ) outside, with cooling channels ( 70 . 70a ) is carried out so that the webs ( 71 ) of the cooling channels ( 70 . 70a ) over the entire length of the interior ( 11 . 22 . 39 . 67 81 ) or outer tube ( 14 . 29 . 69 . 83 ) with a toothing ( 42 . 69 ) support friction, it is in the arrangement of the outer tube ( 14 . 28 . 69 . 83 ) to the inner tube ( 11 . 22 . 39 . 67 . 81 ), the function of drill head cooling ( 88 ) and the extrusion process ( 96 ) of the adhesive cartridge ( 66 ) in the anchor ring space ( 89 ), from the back pulley ( 86 ) with the non-return lip ( 93 ) supported.
  6. Sheath heavy-duty anchor, according to one of claims 1 to 5 characterized in that, with the cooling water ( 94 ) for the drill bit ( 88 ), the embedded adhesive cartridge ( 66 ) and rotatable in the inner tube ( 81 ) is collected non-destructively.
  7. Sheath heavy-duty anchor, according to one of claims 1 to 6 characterized in that, with the rolled profiling ( 6 . 15 . 29 . 41 ) a flow channel ( 8th . 18 . 32 . 75 ) by the break with the manufacturing distance ( 17 . 31 . 74 ) for the cuttings ( 95 ) and the adhesive mixture ( 57 ) arises.
  8. Sheath heavy-duty anchor, according to one of claims 1 to 7 characterized in that, with the non-return lip ( 93 ) of the reflux disc ( 86 ), a reflux of the adhesive mixture ( 57 ) in the cooling channels ( 82 ) with the squeezing process ( 96 ) is prevented.
  9. Sheath heavy-duty anchor, according to one of claims 1 to 8, characterized in that the volume of the adhesive cartridge ( 66 ) is larger than the anchor ring space ( 3 . 20 . 34 . 78 . 89 ).
  10. A method for producing the jacketed heavy-duty anchor, according to any one of claims 1-9 characterized in that, an outer tube ( 14 ) Partial and friction-resistant, with the inner tube ( 11 ) is connected so that only on one or both sides of the anchor tube, a threaded connection ( 39 . 45 ) to mechanical machining, for an internal / external thread, for an anchor extension ( 37 ) arises.
DE102014005773.9A 2014-04-23 2014-04-23 Single- and two-phase self-drilling coat heavy-duty anchor as cartridge or injection anchor in turn-key design. Production and setting process Withdrawn DE102014005773A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102014005773.9A DE102014005773A1 (en) 2014-04-23 2014-04-23 Single- and two-phase self-drilling coat heavy-duty anchor as cartridge or injection anchor in turn-key design. Production and setting process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014005773.9A DE102014005773A1 (en) 2014-04-23 2014-04-23 Single- and two-phase self-drilling coat heavy-duty anchor as cartridge or injection anchor in turn-key design. Production and setting process

Publications (1)

Publication Number Publication Date
DE102014005773A1 true DE102014005773A1 (en) 2015-10-29

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Application Number Title Priority Date Filing Date
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Country Link
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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055051A (en) 1976-01-08 1977-10-25 The United States Of America As Represented By The Secretary Of The Interior Unitary drill bit and roof bolt
DE3100730A1 (en) 1980-02-12 1981-12-24 Amberg Ingbuero Ag Method of supporting and/or stabilising excavation walls in civil engineering, mining and tunnelling, apparatus for carrying out the method, and stabilising anchor sitting in a borehole in the excavation wall
DE29900432U1 (en) 1999-01-13 1999-04-22 Schran Bergbau Baumaschinen Bo Mountain anchor system
DE10017751A1 (en) 2000-04-10 2001-10-11 Hilti Ag Mountain anchors
DE10017763A1 (en) 2000-04-10 2001-10-11 Hilti Ag Tube anchor for mining/tunneling has a drill head and inner pistons to hold the mortar mass to be pressed out wholly through passage openings in a simple operation
DE10017750A1 (en) 2000-04-10 2001-10-11 Hilti Ag Mountain anchors
DE10301968A1 (en) 2003-01-20 2004-07-29 Hilti Ag Fixing element used in the mining/tunnel construction industry comprises a mortar composition and a channel section arranged in an inner tube held by spacers between the outer wall of the inner tube and the inner wall of a receiving body
DE10321175B3 (en) 2003-05-12 2004-08-26 Carbotech Fosroc Gmbh Injection ground anchor, to stabilize walls in mining and tunneling, has an inner channel with at least one chamber to hold the mixed cement to be pressed out into the borehole
DE10336040A1 (en) 2003-08-01 2005-03-10 Hilti Ag rock bolts
DE10336043A1 (en) 2003-08-01 2005-03-17 Hilti Ag Xings
DE102006006748A1 (en) 2006-01-16 2007-07-19 Berwald, Werner P., Dipl.-Ing. In-liner hollow rod compound anchor for installation in mountains, tunnels and rock constructions has no boring dust suction channel or inner adhesive magazine tube
DE102006011652A1 (en) 2006-02-12 2007-09-20 Berwald, Werner P., Dipl.-Ing. Hollow rod shear connector for use in e.g. tunnel construction, has adhesive cartridge provided as adhesive paste or as granulate-pressure-adhesive mix with film tube that is provided with hardener spiral

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055051A (en) 1976-01-08 1977-10-25 The United States Of America As Represented By The Secretary Of The Interior Unitary drill bit and roof bolt
DE3100730A1 (en) 1980-02-12 1981-12-24 Amberg Ingbuero Ag Method of supporting and/or stabilising excavation walls in civil engineering, mining and tunnelling, apparatus for carrying out the method, and stabilising anchor sitting in a borehole in the excavation wall
DE29900432U1 (en) 1999-01-13 1999-04-22 Schran Bergbau Baumaschinen Bo Mountain anchor system
DE10017751A1 (en) 2000-04-10 2001-10-11 Hilti Ag Mountain anchors
DE10017763A1 (en) 2000-04-10 2001-10-11 Hilti Ag Tube anchor for mining/tunneling has a drill head and inner pistons to hold the mortar mass to be pressed out wholly through passage openings in a simple operation
DE10017750A1 (en) 2000-04-10 2001-10-11 Hilti Ag Mountain anchors
DE10301968A1 (en) 2003-01-20 2004-07-29 Hilti Ag Fixing element used in the mining/tunnel construction industry comprises a mortar composition and a channel section arranged in an inner tube held by spacers between the outer wall of the inner tube and the inner wall of a receiving body
DE10321175B3 (en) 2003-05-12 2004-08-26 Carbotech Fosroc Gmbh Injection ground anchor, to stabilize walls in mining and tunneling, has an inner channel with at least one chamber to hold the mixed cement to be pressed out into the borehole
DE10336040A1 (en) 2003-08-01 2005-03-10 Hilti Ag rock bolts
DE10336043A1 (en) 2003-08-01 2005-03-17 Hilti Ag Xings
DE102006006748A1 (en) 2006-01-16 2007-07-19 Berwald, Werner P., Dipl.-Ing. In-liner hollow rod compound anchor for installation in mountains, tunnels and rock constructions has no boring dust suction channel or inner adhesive magazine tube
DE102006011652A1 (en) 2006-02-12 2007-09-20 Berwald, Werner P., Dipl.-Ing. Hollow rod shear connector for use in e.g. tunnel construction, has adhesive cartridge provided as adhesive paste or as granulate-pressure-adhesive mix with film tube that is provided with hardener spiral

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