WO2015035456A1 - Bouchons de bourrage en coin à frottement modifié - Google Patents

Bouchons de bourrage en coin à frottement modifié Download PDF

Info

Publication number
WO2015035456A1
WO2015035456A1 PCT/AU2014/000901 AU2014000901W WO2015035456A1 WO 2015035456 A1 WO2015035456 A1 WO 2015035456A1 AU 2014000901 W AU2014000901 W AU 2014000901W WO 2015035456 A1 WO2015035456 A1 WO 2015035456A1
Authority
WO
WIPO (PCT)
Prior art keywords
wedge
shaped member
stemming
blast hole
plug
Prior art date
Application number
PCT/AU2014/000901
Other languages
English (en)
Inventor
Jeffrey Bruce Phillips
Original Assignee
Rise Mining Developments Pty Ltd
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 AU2013903545A external-priority patent/AU2013903545A0/en
Application filed by Rise Mining Developments Pty Ltd filed Critical Rise Mining Developments Pty Ltd
Priority to CA2922574A priority Critical patent/CA2922574A1/fr
Priority to AU2014321142A priority patent/AU2014321142A1/en
Priority to US14/915,499 priority patent/US20160209196A1/en
Publication of WO2015035456A1 publication Critical patent/WO2015035456A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
    • F42D1/18—Plugs for boreholes

Definitions

  • the present invention relates to mining, and more specifically to wedge stemming plugs for blocking off mining blast holes.
  • the invention has particular application for stemming underground, upward sloping blast holes; however the product may also be applied to surface mining drill holes.
  • Steping describes both the inert material, and the act of placing inert material into a blast hole to contain the blast gases as much as possible on detonation. Stemming relies on friction, cohesion, or bridging of the stemming material to prevent rifling out of blast holes. The more the explosives are constrained, the greater the work they are able to do. Explosives follow the path of least resistance, and without stemming material large amounts of energy are lost through rifling out the open collar of the drill hole. With effective stemming in place, this removes that least resistance path and causes more energy to be used breaking the rock adjacent to the blast hole.
  • Stemming need not be airtight. In fact, in some circumstances it is advantageous not to be airtight, for instance when blasting with emulsion explosives.
  • Emulsion explosives need to degas, and in doing this they will expand provided there is no resistance to the gas escaping by pressure build-up resulting from a sealed hole.
  • US2008/0047455 describes a rock breaking cartridge which comprises a tubular body that incorporates a stemming device therein. Upon activation, the stemming device expands a portion of the tubular body in a radial sense.
  • a preferred embodiment of the stemming device in US2008/0047455 includes opposing wedges components made from wood or a suitable plastics material. The wedge components have mating sloping faces, so that when activated, (e.g. by a hammer blow applied to an end of one of the wedge components) the sloping faces ride over each other to radially expand the cartridge. The cartridge is thereby locked in position, with the expanded portion of the tubular body frictionally engaged with the wall of the hole.
  • US2010/0276984 similarly discloses a self-stemming cartridge comprising a cylindrical casing containing an accelerant and a stemming mechanism.
  • the stemming device in at least one aspect consists of a dowel rod cut into separate dowels, one of which has opposing angled flat sides and the others forming wedges.
  • the cylindrical casing may have a high friction external surface, such a sand paper.
  • the present invention was developed with a view to providing a wedge stemming plug and a method of using wedges to stem an overhead blast hole, wherein the wedges will provide improved effectiveness compared to the prior art devices noted above.
  • the invention is particularly useful for stemming underground, upward sloping blast holes, it is also of use in blocking drill holes for other purposes. For example, where drill rods are broken and stuck in an upward sloping overhead drill hole, but with some risk that they may dislodge of their own accord and fall out unexpectedly. In this instance the drill rods need to be anchored in the drill hole so that they can't inadvertently fall out when personnel are working below.
  • the wedge-shaped members described can be used as a safety barrier to block the drill rods in a hole in these circumstances.
  • a stemming plug for stemming a blast hole in a mine, the plug comprising: an active wedge-shaped member having a sloping face received in sliding relationship with a matching face of a passive wedge-shaped member wherein, in use, the active wedge-shaped member is positioned nearest to an explosive material in the blast hole and the passive wedge-shaped member is positioned further from the explosive material in the blast hole; and, the active wedge-shaped member having a friction reducing material provided on at least part of its surface to reduce the sliding resistance of the active wedge-shaped member relative to the passive wedge-shaped member; whereby, in use, when a Shockwave from initiation of the explosive material in the blast hole encounters the active wedge-shaped member it acts as a piston, sliding on the passive wedge-shaped member so that both wedge- shaped members exert diametrically opposed forces against a wall of the blast hole and are locked in place.
  • the active wedge-shaped member is coated with a friction-reducing surface treatment.
  • the friction-reducing surface treatment may be PTFE paint, liquid or so!id friction modifier.
  • the active wedge-shaped member may be enclosed within a friction-reducing envelope such as a plastic sleeve, in which the envelope provides a lower coefficient of friction than the surface of the active wedge-shaped member by itself.
  • the passive wedge-shaped member is of greater mass than the active wedge-shaped member wherein, in use, the passive wedge-shaped member provides greater resistance to movement than the active wedge- shaped member.
  • the passive wedge-shaped member has a friction-increasing material provided on at least part of its surface where it contacts the wall of the blast hole to increase the sliding resistance of the passive wedge-shaped member relative to the active wedge-shaped member.
  • the wedge-shaped members are formed from a single cylindrical elongate member cut through at an angle to form the pair of wedge-shaped members.
  • each end of the cylindrical elongate member is substantially flat, having a surface that is substantially orthogonal to a longitudinal axis of the cylindrical elongate member.
  • the cylindrical elongate member is cut through at an acute angle of between about 55° and 85°. More preferably the cylindrical elongate member is cut through at an acute angle of between about 75° and 85°.
  • the cylindrical elongate member forms a solid core of the plug.
  • the solid core is about 250mm to 600mm in length.
  • the stemming plug further comprises an outer liner having a first inner join line and a second outer join line, the inner join line being made of water-soluble material and defining a first diameter of the liner which is smaller than a second diameter defined by the second join line and is adapted to be received in the blast hole.
  • the liner is made from a water-absorbent material, with suitable friction-modifying properties to provide grip in the blast hole during installation.
  • a stemming plug for stemming a blast hole in a mine, the plug comprising: an outer liner having a first inner join line and a second outer join line, the inner join line being made of water-soluble material and defining a first diameter of the liner which is smaller than a second diameter defined by the second join line and is adapted to be received in a blast hole; and, a pair of elongate wedge-shaped members received in sliding relationship with respect to each other within the outer liner, one of the wedge-shaped members having a friction reducing material provided on at least part of its surface to reduce the sliding resistance of the one wedge-shaped member relative to the other wedge-shaped member; wherein, in use, when the plug is immersed in water it dissolves the first inner join iine, and when the plug is tamped into the blast hole the sleeve expands to the second diameter and the wedge-shaped members slide relative to each other so as to wedge into the blast hole and block the blast hole.
  • a stemming plug for stemming a blast hole in a mine, the plug comprising: an outer liner adapted to be received in a blast hole; and, a pair of elongate wedge-shaped members received in sliding relationship with respect to each other within the liner, wherein one of the wedge-shaped members has less mass than the other wedge-shaped member so that under dynamic loading the lighter wedge-shaped member will accelerate faster than the other, heavier wedge-shaped member; and, wherein, in use, when the plug encounters a Shockwave after initiation of an explosive in the blast hole the lighter wedge-shaped member moves relative to the heavier wedge-shaped member so as to wedge the pair of wedge- shaped members into the blast hole and block the blast hole.
  • the one wedge-shaped member is an active wedge-shaped member having a sloping face received in sliding relationship with a matching face of the other wedge-shaped member, the other wedge-shaped member being a passive wedge-shaped member wherein, in use, the active wedge- shaped member is positioned nearest to an explosive material in the blast hole and the passive wedge-shaped member is positioned further from the explosive material in the blast hole.
  • the active wedge-shaped member is coated with a friction-reducing surface treatment.
  • the friction-reducing surface treatment may be PTFE paint, liquid or solid friction modifier.
  • the active wedge-shaped member may be enclosed within a friction-reducing envelope, such as a plastic sleeve, in which the envelope has a lower coefficient of friction than the surface of the active wedge-shaped member by itself.
  • the stemming plug further comprises an installation wedge-shaped member provided at a base of the stemming plug, and wherein the passive wedge-shaped member also has a wedge-shaped base whereby, in use, the installation wedge-shaped member is forced against the passive wedge-shaped member during installation.
  • the wedge-shaped members are formed from a single cylindrical elongate member cut through at an angle to form two or more wedge-shaped members.
  • a method of stemming a blast hole in a mine comprising: filling an outer liner with a pair of elongate wedge-shaped members received in sliding relationship with respect to each other to form a stemming plug, the liner having a first inner join line and a second outer join line, the inner join line being made of water-soluble material and defining a first diameter of the liner which is smaller than a second diameter defined by the second join line and is adapted to be received in a blast hole; providing a friction reducing material on at least part of the surface of one of the wedge-shaped members, to reduce the sliding resistance of the one wedge-shaped member relative to the other wedge-shaped member; providing one or more of the stemming plugs to a mine site ready for use in the event that a blast hole needs to be blocked; immersing one or
  • the method further comprises the step of tamping the stemming plug to firmly locate the wedge-shaped members in the blast hole.
  • Figure 1 is a cross-section of a stope in a metalliferous underground mine, showing the preferred location of a wedge stemming plug in a blast hole for preventing the explosives from rifling out of the blast hole;
  • Figure 2 is a graph showing the increase in force absorbed by the wedge-shaped members of the stemming plug on a wall of the blast hole with increasing displacement;
  • Figure 3 illustrates a first embodiment of a wedge stemming plug according to the present invention
  • Figure 4 illustrates a second embodiment of a wedge stemming plug according to the present invention
  • Figure 5 illustrates a third embodiment of a wedge stemming plug according to the present invention
  • Figure 6 is a cross-sectional view of a fourth embodiment of a wedge stemming plug according to the present invention.
  • Figure 7 is a perspective view of the fourth embodiment of the wedge stemming plug shown in Figure 6;
  • Figure 8 shows the wedge-shaped members of Figure 7 within a partially cut-away elongate sleeve
  • Figure 9 is a perspective view of a fifth embodiment of a wedge stemming plug according to the present invention.
  • a first embodiment of a stemming plug 10 in accordance with the invention, for stemming a blast hole in a mine, is illustrated in Figure 3.
  • the plug 10 comprises an active wedge-shaped member 12 having a sloping face received in sliding relationship with a matching face of a passive wedge- shaped member 14.
  • the active wedge-shaped member 12 is positioned nearest to an explosive materia! in the blast hole, and the passive wedge-shaped member 14 is positioned further from the explosive material in the blast hole.
  • Figure 1 shows a cross section of a stope in a metalliferous underground mine, with an upwardly extending, vertical blast hole 16.
  • the stemming plug 10 is preferably located near the lower end of the blast hole 16, below explosive material 18, for effectiveness in preventing the explosives from rifling out of the blast hole.
  • Stemming contains the power of the explosive blast to the location where it is needed (indicated by the arrows in Figure 1 ).
  • More effective use of wedging type arrangements for stemming and otherwise blocking drill holes can be made by reducing the friction on the active wedge-shaped member, increasing the friction on the passive wedge- shaped member, or a combination of both.
  • the active wedge-shaped member 12 has a friction reducing materia! provided on at least part of its surface to reduce the sliding resistance of the active wedge-shaped member 12 relative to the passive wedge-shaped member 14.
  • the active wedge-shaped member 10 is coated with a friction-reducing surface treatment 20.
  • the friction-reducing surface treatment may be PTFE paint, liquid or solid friction modifier.
  • the passive wedge-shaped member 14 is further from the explosive material 18, and the next to encounter the Shockwave.
  • the passive wedge-shaped member 14 is preferably relatively stationary, or able to offer greater resistance to movement, in comparison to the active wedge- shaped member 12 for the pair to be effective.
  • Increasing the resistance to movement of the passive wedge-shaped member is achieved in PCT/AU2013/000489 by backing that wedge up with a parcel of grout. The grout increases the resistance to movement of the passive wedge-shaped member through cohesion between the grout and the wall of the blast hole.
  • the resistance to movement of the passive wedge-shaped member can be increased.
  • a high friction material such as a surface coating (for example, a rubber coating)
  • the passive wedge-shaped member 14 has a high friction material 22 applied to a surface thereof where the passive wedge- shaped member 14 contacts the wall of the blast hole.
  • a further improvement in stemming effectiveness may be achieved by increasing the mass of the passive wedge-shaped member relative to the active wedge-shaped member, so that it offers greater resistance to movement. It can be considered to have a greater stationary inertia. When the combined wedges encounter the blasting force, the active wedge is lighter and will therefore accelerate faster than the larger passive wedge. If these circumstances prevail, the wedges will exert diametrically opposite forces against the wall of the hole and lock in place, providing a maximum amount of stemming resistance to the explosives.
  • Figure 4 shows a second embodiment of the stemming plug 30 where the passive wedge-shaped member 34 is longer than the active wedge-shaped member 32 so as to provide increased surface area in contact with the wall of the blast hole. Lengthening the passive wedge-shaped member 34 has the additional advantage of increasing the mass of the passive wedge-shaped member.
  • the active wedge-shaped member 32 has a friction-reducing coating 20 on its surfaces.
  • the passive wedge-shaped member 34 has greater resistance to movement due to the greater surface area which is in contact with the wall of the hole.
  • the passive wedge-shaped member 34 has greater mass
  • the active wedge-shaped member 32 (with less mass) will accelerate faster than the passive wedge-shaped member 34.
  • the active wedge-shaped member 32 will apply a greater force to the passive wedge-shaped member 34, and lock against the wall of the hole harder, resisting the blasting forces to a greater extent.
  • Figure 5 shows a third embodiment of the stemming plug 40 which is similar to the second embodiment 30, and therefore the same reference numerals will be used to identify the like parts.
  • the passive wedge-shaped member 34 is of greater length, (and therefore has greater mass) than the active wedge-shaped member 32.
  • the active wedge-shaped member 32 has a friction-reducing surface treatment 20 applied to its surfaces.
  • the passive wedge-shaped member 34 also has a high friction material 22 applied to a surface thereof where the passive wedge-shaped member 34 contacts the wall of the blast hole.
  • Figures 6 and 7 show a cross-sectional view and a perspective view respectively of a fourth embodiment of the wedge stemming plug 50, which is similar to the first embodiment illustrated in Figure 3 and therefore the same reference numerals will be used to identify the like parts.
  • the active wedge-shaped member 12 is enclosed within a friction-reducing envelope, such as a plastic sleeve 52, in which the envelope provides a lower coefficient of friction than the surface of the active wedge-shaped member by itself.
  • a friction-reducing envelope such as a plastic sleeve 52
  • the plastic sleeve 52 is long enough to allow for the sliding movement of the active wedge-shaped member 12.
  • the arrow in Figure 6 shows the direction of movement.
  • Both the active and passive wedge-shaped members have a matching, mating sliding surface at an acute angle to the direction of force from the initiation of the explosive material.
  • the wedge-shaped members are cut from the same core material so that the sliding surface is identical on each wedge.
  • both of these faces are treated with a friction reducing coating or arrangement, so that the sliding surfaces move freely.
  • the wedge stemming plug further comprises an outer liner 56, the wedge-shaped members being received within the outer liner.
  • the liner 56 is similar to the elongate sleeve of porous material described in PCT/AU2013/000489.
  • the outer liner 56 preferably has a first inner join line and a second outer join line, the inner join line being made of water-soluble material and defining a first diameter of the liner which is smaller than a second diameter defined by the second join line and is adapted to be received in the blast hole.
  • Figure 8 shows the wedge-shaped members of Figure 7 within a partially cutaway outer liner 56.
  • the liner 56 is made from a water-absorbent material, with suitable friction properties to provide grip in the blast hole during installation.
  • the liner 56 is made from a lightweight, biodegradable material.
  • the liner 56 is made from hessian or jute, which is a low cost, environmentally sustainable material.
  • the passive wedge-shaped member 14 is provided with a high friction material 22 applied thereto, such as a rubber compound.
  • a high friction material 22 applied thereto, such as a rubber compound.
  • the rubber compound 22 is applied so that is permeates the outer liner 56 along the surface of the passive wedge-shaped member 14 where it contacts the wall of the hole, so that the compound 22 contacts both the passive wedge- shaped member 14 and the wall of the hole in use.
  • the wedge-shaped members are formed from a single cylindrical elongate member cut through at an angle to form the pair of wedge-shaped members, similar to the wedge-shaped members described in PCT/AU2013/000489.
  • each end of the cylindrical elongate member is substantially flat, having a surface that is substantially orthogonal to a longitudinal axis of the cylindrical elongate member.
  • the cylindrical elongate member is cut through at an acute angle of between about 55° and 85°. More preferably the cylindrical elongate member is cut through at an acute angle of between about 75° and 85°.
  • the cylindrical elongate member forms a solid core of the plug.
  • the solid core has an outer diameter about 10% less than the nominal drill bit size to allow room for bit wear, and a further 3mm smaller to allow for a signal tube.
  • the solid core is about 250mm to 600mm in length.
  • the solid core of the plug is formed from cured grout material.
  • the solid core is a grout plug made of general purpose (Portland) cement reinforced with fibres for additional strength and toughness.
  • the reinforcing fibres are either one or a combination of 47mm monofilament poly fibres and 19mm monofilament fibres, of the kind manufactured by Radmix and typically used in shotcrete applications.
  • a further possible configuration using the same philosophy is to have an additional installation wedge at the base of the stemming plug.
  • a central passive wedge remains significantly longer and heavier than either the active wedge or the installation wedge.
  • Simple geometry and being made of the same materials means it as a minimum is approximately twice the mass of the active wedge or the installation wedge.
  • FIG 9 illustrates a fifth embodiment of the wedge stemming plug 60, which is similar to the previous embodiment illustrated in Figure 8 and therefore the same reference numerals will be used to identify the like parts and these will not be described again in detail.
  • the principal difference in this embodiment is the addition of an installation wedge-shaped member 62 at the base of the stemming plug 60.
  • a central wedge-shaped member 64 is the passive wedge-shaped member, and is approximately twice the mass of the active wedge-shaped member 12. instead of having a flat-faced base, as with the previous passive wedge-shaped members 14 and 34, the central passive wedge-shaped member 64 also has a wedge-shaped base.
  • the advantage of such a configuration is that it allows ease of installation, whereby, in use, the installation wedge-shaped member 62 is forced against the central passive wedge-shaped member 64 during installation. It has the advantage of being jolted against the passive wedge-shaped member 64, typically of twice its own mass, allowing it to be more easily placed in steeply angled upholes.
  • the wedge stemming plug 60 can also be placed in flat holes where gravity does not assist the locking of the wedges.
  • the plug 60 is less likely to rattle loose in the blast hole if there is significant vibration from other holes being initiated around it.
  • the active wedge-shaped member 12 in this instance is not used to locate the plug, so it is freer to move in a pistoning manner with the force of the initiating explosive material.
  • the passive wedge-shaped member 64 is already in a position to receive the active wedge-shaped member 12 on initiation. That is, the central passive wedge-shaped member 64 is already forced against the wall of the blast hole and has frictional resistance ready to receive the pistoning active wedge-shaped member 12.
  • the angle of the sliding surfaces between the installation wedge-shaped member 62 and the passive wedge-shaped member 64 need not be exactly the same as that between the passive wedge-shaped member and the active wedge-shaped member, but for all intents and purposes, it is similar. Since the installation wedge-shaped member 62 is used primarily for initially locating the plug, it is required to grip the hole.
  • the installation wedge-shaped member 62 is free of friction-modifying materials except for on the sliding surface which mates with the passive wedge-shaped member 64. On this surface, and the matching surface on the passive wedge-shaped member, friction-reducing materials would be advantageous.
  • the plastic sleeve 52 being used in the plug 60, the plastic sleeve 52 would not encompass the installation wedge-shaped member 62, but could go between the installation wedge-shaped member 62 and the central passive wedge-shaped member 64, on the matching, sliding surface (as shown in Figure 9).
  • the plugs are more effective than other uphole stemming products at containing the forces produced upon detonation of the explosive material.
  • the plug configuration also ensures the upper wedge-shaped member transmits the larger proportion of the Shockwave force into resistance against the blast by the wedging action.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Vibration Dampers (AREA)

Abstract

La présente invention concerne un bouchon de bourrage (10) destiné au bourrage d'un trou de mine dans une mine, le bouchon (10) comprenant un élément actif en forme de coin (12) doté d'une face inclinée en relation de glissement avec une face correspondante d'un élément passif en forme de coin (14). Lors de l'utilisation, l'élément actif en forme de coin (12) est placé à proximité d'un matériau explosif dans le trou de mine et l'élément passif en forme de coin (14) est placé à une position plus éloignée du matériau explosif dans le trou de mine. L'élément actif en forme de coin (12) comporte un matériau de réduction de frottement placé sur au moins une partie de sa surface afin de réduire la résistance au glissement de l'élément actif en forme de coin (12) par rapport à l'élément passif en forme de coin (14); pendant l'utilisation, lorsqu'une onde de choc issue de l'amorçage du matériau explosif dans le trou de mine rencontre l'élément actif en forme de coin (12), celui-ci agit comme un piston en glissant sur l'élément passif en forme de coin (14) de manière à ce que les deux éléments en forme de coin exercent des forces diamétralement opposées contre une paroi du trou de mine et soient bloqués en place.
PCT/AU2014/000901 2013-09-11 2014-09-11 Bouchons de bourrage en coin à frottement modifié WO2015035456A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA2922574A CA2922574A1 (fr) 2013-09-11 2014-09-11 Bouchons de bourrage en coin a frottement modifie
AU2014321142A AU2014321142A1 (en) 2013-09-11 2014-09-11 Friction-modified wedge stemming plugs
US14/915,499 US20160209196A1 (en) 2013-09-11 2014-09-11 Friction-modified wedge stemming plugs

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2013903545A AU2013903545A0 (en) 2013-09-11 Friction Modified Wedge Stemming Plugs
AU2013903545 2013-09-11

Publications (1)

Publication Number Publication Date
WO2015035456A1 true WO2015035456A1 (fr) 2015-03-19

Family

ID=52664832

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2014/000901 WO2015035456A1 (fr) 2013-09-11 2014-09-11 Bouchons de bourrage en coin à frottement modifié

Country Status (4)

Country Link
US (1) US20160209196A1 (fr)
AU (1) AU2014321142A1 (fr)
CA (1) CA2922574A1 (fr)
WO (1) WO2015035456A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018102858A1 (fr) 2016-12-07 2018-06-14 Rise Mining Developments Pty Ltd Bouchons de bourrage améliorés
US10577886B2 (en) 2014-01-13 2020-03-03 Rise Mining Developments Pty Ltd Drill hole plug with anchoring grooves and at least one sealing groove

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG11201608249PA (en) * 2014-05-17 2016-10-28 Halliburton Energy Services Inc Establishing communication downhole between wellbores
RU2699102C1 (ru) * 2018-12-10 2019-09-03 Виктор Сергеевич Федотенко Подвесная скважинная забойка

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4829902A (en) * 1986-01-07 1989-05-16 C-I-L Inc. Method for charging flowable explosives into upwardly extending boreholes
US20080047455A1 (en) * 2004-01-26 2008-02-28 Edward Walenty Tota Rock Breaking Cartridge and Use Thereof
US20100276984A1 (en) * 2006-10-19 2010-11-04 Carroll Bassett Self-stemming cartridge
CN103017622A (zh) * 2012-12-18 2013-04-03 山西大同大学 抗水可退式多级缓冲胀裂自变形自闭锁炮眼堵塞器
WO2013170294A1 (fr) * 2012-05-17 2013-11-21 Rise Mining Developments Pty Ltd Bouchons de bourrage

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120205092A1 (en) * 2011-02-16 2012-08-16 George Givens Anchoring and sealing tool

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4829902A (en) * 1986-01-07 1989-05-16 C-I-L Inc. Method for charging flowable explosives into upwardly extending boreholes
US20080047455A1 (en) * 2004-01-26 2008-02-28 Edward Walenty Tota Rock Breaking Cartridge and Use Thereof
US20100276984A1 (en) * 2006-10-19 2010-11-04 Carroll Bassett Self-stemming cartridge
WO2013170294A1 (fr) * 2012-05-17 2013-11-21 Rise Mining Developments Pty Ltd Bouchons de bourrage
CN103017622A (zh) * 2012-12-18 2013-04-03 山西大同大学 抗水可退式多级缓冲胀裂自变形自闭锁炮眼堵塞器

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10577886B2 (en) 2014-01-13 2020-03-03 Rise Mining Developments Pty Ltd Drill hole plug with anchoring grooves and at least one sealing groove
WO2018102858A1 (fr) 2016-12-07 2018-06-14 Rise Mining Developments Pty Ltd Bouchons de bourrage améliorés
CN110062869A (zh) * 2016-12-07 2019-07-26 莱斯矿业发展控股有限公司 改进的堵塞塞子
EP3551962A4 (fr) * 2016-12-07 2020-08-05 Rise Mining Developments Pty Ltd Bouchons de bourrage améliorés
US11150068B2 (en) 2016-12-07 2021-10-19 Rise Mining Development Pty Ltd Stemming plugs
EA038962B1 (ru) * 2016-12-07 2021-11-15 Райз Майнинг Дивелопментс Пти Лтд Улучшенные запирающие забойки
CN110062869B (zh) * 2016-12-07 2022-05-03 莱斯矿业发展控股有限公司 改进的堵塞塞子
AU2017371709B2 (en) * 2016-12-07 2022-12-01 Rise Mining Developments Pty Ltd Improved stemming plugs

Also Published As

Publication number Publication date
AU2014321142A1 (en) 2016-03-10
US20160209196A1 (en) 2016-07-21
CA2922574A1 (fr) 2015-03-19

Similar Documents

Publication Publication Date Title
EP2409001B1 (fr) Boulon de frottement
US4431348A (en) Force transmission device
US20160209196A1 (en) Friction-modified wedge stemming plugs
WO2013170294A1 (fr) Bouchons de bourrage
AU769412B2 (en) Controlled foam injection method and means for fragmentation of hard compact rock and concrete
CN111757970A (zh) 坐封工具中的减震材料
WO2014030139A1 (fr) Dispositif de bourrage
US10533382B2 (en) Deployable bow spring centralizer
CA2890020C (fr) Dispositif, procede et systeme de chargement de fixatifs pour boulons d'ancrage
US20080047455A1 (en) Rock Breaking Cartridge and Use Thereof
AU2013315335B2 (en) Method and system for stabilising earthen formations
WO2014179828A1 (fr) Appareil et procédé de stabilisation de roche
RU2688996C1 (ru) Фиксатор заряда при буровзрывных работах
AU2018346063B2 (en) Anti-static, folding container for blasting operations, which can be partially compressed, and associated accessories
AU2013205498C1 (en) Apparatus and methods for stabilising rock
US11448025B2 (en) Impact resistant material in setting tool
AU2016100302C4 (en) Apparatus and methods for stabilising rock
AU2019246893A1 (en) Polymer Locking Plug
CN113375515B (zh) 一种爆破压实装置及其对土质边坡爆破压实的方法
AU2018204352B2 (en) Improved rock bolt
JP2008214855A (ja) トンネル切羽の補強工法および切羽補強部材
WO2017091856A1 (fr) Bouchon de bourrage

Legal Events

Date Code Title Description
DPE2 Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14844369

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2922574

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 14915499

Country of ref document: US

ENP Entry into the national phase

Ref document number: 2014321142

Country of ref document: AU

Date of ref document: 20140911

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14844369

Country of ref document: EP

Kind code of ref document: A1