JP2002532678A - Method and apparatus for filling holes - Google Patents

Abstract

(57) Abstract: A method of filling a hole drilled in rock or concrete (10) with a large amount of energy material (14) at or near the bottom (16) of the hole (12). ). The initiator (18) and the initiator are connected by a lead wire (28). Hole (12) is filled to level (L) with stemming material (20) and plug (22) is positioned to maintain stemming material (20). The lead wire (28) inserts the plug (22) through a groove, recess or through hole. Heavy objects (30), such as the buckets of the excavator (32) and the plugs (22) prevent the stemming material from blowing out of the holes (12) when the energy material explodes. Since the plug (22) has a length equal to the length of the neck area (C) of the hole (12), there is little disadvantage that the neck area (C) is dissociated and gives energy until the flying stone is generated. Become. The plug (22) and the stemming material (20) can be replaced by a stemming bar with the energy material (14) directly mounted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001] For filling method Technical Field of the Invention The present invention into the hole is not particularly limited, a method of filling of the holes for fracturing or for drilling for rigid materials such as rock or concrete.

[0002] The fracturing or drilling of background robust material of the invention is an important work in the mining and construction industries. Drill blasting is known to achieve this. this is,
Drill a hole in the rigid material and fill the hole with a large amount of energetic material and typically several stems. Of course, this method of filling holes has a substantial effect on efficiency and is constructed as a drill blast method.

[0003] A typical procedure for filling a hole is to simply insert the energetic material into the hole with a priming agent and fill several stems, eg, sand, gel or stemming bars, to a complete and predetermined depth. And igniting a detonator which in turn detonates the energy material. In this case, when a stemming bar is used, a large vehicle or large equipment (eg, jumbo) or other large equipment is used to hold the stemming bar in place so that the stemming bar can be used to launch the projectile when the energy material is detonated So that it does not become This means that the large vehicle or large device for holding the stem bar in place must withstand considerable forces so as not to be damaged by itself. Mining and construction managers naturally oppose using the machine there as a shock absorber in such a manner. The machine is also damaged by the scattered rock from the collapse of the hole entrance.

[0004] Safety at excavation or urban construction sites is absolutely essential, and the public sector does not allow for any processes that would create spills and projectiles. In most cases, anyone can use the non-explosive method freely, but it is generally a more expensive option, reducing the profits the builder will get to just the economic level of bidding on a particular business .

[0005] In the case of stems composed of individual particles, for example sand, drill cutting and other discharges from stem bore openings are public places. This is also a proof of the reduced efficiency in the filling process, as the non-industrial part of the blast energy is wasted by the energy provided to the stem to discharge from the holes.

[0006] SUMMARY OF THE INVENTION The present invention aims to provide a production method of filling method and filling the holes in the hole intended to alleviate the problems of the at least one prior art described above.

According to the present invention, (a) a step of inserting an energy material and a priming agent into a hole; (b) a step of filling the hole with an energy absorbing stemming material to a predetermined level; Inserting a plug provided with means for facilitating coupling with the priming material into the hole so as to rest on the stemming material; and (d) substantially moving the plug from the bottom of the hole. Mechanically retains the plug in the hole so that the energetic material has a sudden increase in gas pressure near the bottom of the hole when coupling the initiator and the source through the plug Detonated such that the stemming material acts to promote the pressure generated by the gas from escaping from the bottom of the hole toward a plug substantially separated from the gas pressure; Said Concentrating the gas pressure action at the bottom of the hole.

Preferably, the step (b) fills to a level substantially near or below the neck area of the hole.

Preferably, in the step (c), a plug having an opening or a concave portion through which a lead wire capable of communicating between the initiator and the initiator is inserted to facilitate connection between the initiator and the initiator. When the plug is inserted into the hole, the lead wire is inserted into the opening, the recess, or the groove.

In an alternative embodiment, step (c) provides a plug having a transducer that facilitates wireless electromagnetic coupling between the initiator and the initiator.

Preferably, the step (d) includes a step of placing a weight on an upper end of the plug.

[0012] Alternatively or additionally, the step (d) includes a step of pushing the plug into the hole.

According to another aspect of the invention, (a) providing a drill to drill a rigid material; and (b) inserting an energy material and a priming agent into the hole. (C) filling the hole with an energy absorbing material to a predetermined level; and (d) placing a plug provided with means for facilitating the connection between the detonator and the detonator on the stemming material. (E) mechanically retaining the plug in the hole such that the plug does not substantially move from the bottom of the hole, thereby allowing the initiator to communicate with the initiator through the plug. Upon coupling with the source, the energetic material is detonated such that the gas pressure near the bottom of the hole sharply increases, and the stemming material is substantially separated from the gas pressure from the bottom of the hole. Run towards the plug And a step which acts to facilitate the pressure generated by Utosuru the gas, a method of generating fill hole crushing a rigid material is provided.

Preferably, in the step (e), at least a part of the weight of the drill is placed on an upper end of the plug.

According to yet another aspect of the invention, (a) inserting an energy material and a priming agent into the hole; (b) filling the hole with an energy absorbing stemming material to a predetermined level; c) inserting a plug of a composite component, provided with means for facilitating the connection between the detonator and the detonator, into the hole so as to rest on the stemming material; d) operating one or more components of the plug together to create a wedge effect that mechanically retains the plug in the hole.

According to yet another aspect of the present invention, (a) inserting an energy material and a priming agent into the hole; (b) filling the hole with an energy absorbing stemming material to a predetermined level; c) mechanically retaining the stemming material in the hole by supplying and inserting a plug into the hole and mechanically retaining the plug in the hole.

Preferably, said plug is provided with means for facilitating the connection between the initiator and the initiator.

According to yet another aspect of the present invention, there is provided a stemming bar for stemming a hole for filling a solid material with an energy material at a bottom thereof, wherein the first opening has a first end; A second opening spaced apart from the first opening and located outside the hole when the first end is located in the hole; and a detonation means extending between the first and second openings. There is provided a stemming bar having a groove, a through hole or a recess arranged to detonate the energetic material of the hole.

Preferably, means are provided at the first end for facilitating attachment to the container containing the energy material, so that when the stemming bar is inserted into the hole, the energy material is simultaneously provided. It is placed in the hole.

According to yet another aspect of the invention, a step of drilling a hole in a solid material, a step of placing an energy material in the hole, and a first end for insertion into the hole. Supplying a stemming bar having a groove, a through-hole or a recess formed therein, the first opening having a first opening having a second opening spaced apart from the first opening and located outside the hole; First inserting the first end of the stemming bar into the hole, inserting a priming means through the second opening, passing the groove, through hole or recess through the first opening, Inserting into the operating terminal in contact with the energy material, so that the detonating means can detonate the energy material and crush the solid material, and fill the hole to crush the solid material. Provided.

Preferably, the method further includes a step of mechanically holding the stemming bar in the hole.

Preferably, the step of placing the energy material in the hole includes: placing the energy material in the hole by inserting a first end of the stemming bar into the hole. A first end of the stemming bar supports the energy material.

Preferably, the step of supporting the energy material at a first end of the stemming bar comprises supplying a container containing the energy material and mounting the container at a first end of the stemming bar. And communicating with the first opening.

In one embodiment, the containers are attached to the stemming bar by passing the containers in common.

In an alternative embodiment, the container is mounted or snapped onto the first end of the stemming bar.

The detonating means may be of any shape sent through the groove, through hole or recess of the stemming bar, for example a detonator, electric match, non-electric igniter, squib, or groove, through hole Alternatively, it includes a flame light guided to the recess.

When the initiating means is a flame, the flame is generated by a shotgun cartridge, a theatrical shell or a cap filled with an appropriate pyrotechnic material. The energy material can be formed by explosives or propellant.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram showing a method of filling a hole according to an embodiment of the method of the present invention, FIG. 2 is a schematic diagram showing a method of filling a hole according to a second embodiment of the method of the present invention, and FIG. FIG. 4 is a schematic diagram showing a method for filling holes in a method according to a third embodiment of the present invention, FIG. 4 is a schematic diagram showing a method for filling holes in a method according to a fourth embodiment of the present invention, and FIGS. FIG. 9 is a schematic view showing a different embodiment of a wedge-shaped plug used in the method of the invention, FIG. 9 is a front view showing a stemming bar used in an embodiment of a method of filling a hole, and FIG. 10 is a cross section taken along line AA in FIG. FIGS. 11A and 11B are cross-sectional views showing a second embodiment of the stemming bar, and also show an alternative hole filling method. FIG. 12 is a cross-sectional view showing still another embodiment of the stemming bar and a method of filling holes.

A general methodology employed in embodiments of the present invention is shown in FIG. The figure shows a flat portion 10 of a solid material, such as rock, where a hole 12 is drilled using a conventional drilling device. When the hole 12 is drilled, an energy material such as an explosive or propellant is inserted into the hole as it is or in the form of a cartridge.
At or near the bottom. A priming 18 is operatively associated with the energy material 14. This initiator 18 may also be part of a complete package containing the energy material 14. Alternatively, instead of the detonator 18
May be inserted into the hole separately from the energy material 14. Then, the hole 12 is filled with the stemming material 20 to a predetermined level L corresponding to the end of the neck region C of the hole 12. The stemming material 20 used does not transmit energy or shock waves, but can absorb energy or shock waves. For example, stemming is an unpackaged or self-wrapped sand, gravel, clay, crushed ore, drill bit, or liquid or colloidal suspension that increases in viscosity with increasing shear. Ideally, the material is a granular or particulate material such as one having

When the stemming 20 is inserted into the hole, the plug 22 is then inserted into the hole. FIG.
In the embodiment shown in FIG. 2, the plug 22 has a T-shaped cross section having a short bar 24 in the center and a cross bar 26 extending across the short bar 24. Plug 22, especially bar 2
The length of 4 is equal to or greater than the depth of hole 12 when stemming 20 is filled. That is, the bar 24 is provided with stemming in the neck region C of the hole 12.
At or below this position.

The plug 22 can facilitate the connection between the initiator 18 and an initiator (not shown). In the embodiment shown in FIG. 1, the plug 22 is provided with a through hole, a groove or a concave portion,
By inserting the lead wire 28 here, the connection between the initiator 18 and the initiator is facilitated. Embodiments such as stemming bars are shown in FIGS. 9-12, the details of which will be described later.

Finally, the upper end of the plug 22 protruding from the hole 12 is mechanically pushed down.
In the present example, this is realized by placing a heavy object such as the bucket 30 of the excavator 32 on the end of the plug. However, the same effect can be obtained by placing a drill rig used when first drilling the hole 12 or another heavy object such as a concrete block or a sandbag.

When the detonator 18 is connected to the detonator, the energy material 14 detonates and explodes and burns sequentially. When this occurs, the gas pressure near the bottom 16 of the hole will increase sharply.
This pressure acts in all directions, including upwards, ie, stemming 20. The action of the gas pressure in this direction compresses or locks the stemming 20 while at the same time preventing the stemming 20 from being blown out of the hole by the plug 22 and the heavy object 30. Since the plug 22 has a length at least equal to the length of the neck area C of the hole 12, there is little possibility of energizing the neck area C until the neck area C falls apart and generates flying stones. Moreover, by preventing the stemming 20 from being ejected from the hole 12, and because the stemming 20 can be compressed and fixed in a direction opposite to the surface of the hole, most of the blast energy and gas pressure is reduced at the bottom of the hole. 16. Thus, the blast efficiency is improved. Thus, a small amount of filling that can be used to drill or crush the same volume of solid material, or alternatively the use of the same amount of energy material as in the prior art, increases the amount of digging and crushing Leads to.

FIG. 2 shows an improvement of the apparatus used to effect the method of the invention.
In the figure, the same reference numerals are given to the same forms. A substantial difference between the embodiment of FIGS. 1 and 2 is that the stemming 20 is provided in a package 34 and the plug 22 is a simple stemming bar that does not include the crossbar 26 as shown in FIG. For different applications, package 34 may be of different lengths and may include different types of stemming 20. Also, if desired, one or more stemming packages 34 can be inserted into holes 12. Stemming package 3
The procedure for implementing the method using the plug 4 and the plug 22 having the simple structure is the same as that described with reference to FIG. In addition, the plug 22 is adjusted to a length that ensures that it maintains stemming at or below the collar area C of the hole 12. In this method, the energy material 14 and the priming 18 are first inserted into the holes 12. Next, the stemming package 34 is inserted into the hole. By way of example, lead wires 28 are disposed between the outer surface of package stemming 34 and the surface of hole 12. Then, the lead wire 28 is inserted into the through hole or the concave portion of the plug 22 and connected to an appropriate detonation source. Then, an appropriately useful heavy object is placed on the upper end of the plug 22, and the priming source acts to prim the energy material 14. The functions of the package stemming 34, the plug 22, and the heavy object (not shown) are the same as those described with reference to FIG. The plug 22
In addition, it is possible to provide a cross bar 26, an upper plate, a grid or a flange for increasing an area where a heavy object can be placed.

In yet another improvement, shown in FIG. 3, the detonator 18 and the detonator (not shown) are connected without a lead 28 extending from the detonator 18 through the plug 22 to the detonator. A converter 36 for electromagnetically / magnetically connecting wirelessly is provided in the plug 22. To achieve this connection, a receiver 38 is connected or integrated with the priming 18 and combines the appropriate ignition cord from the signal transmitted from the transducer 36 and / or extracts the operating force. To assist in transmitting signals from the transducer 36 to the receiver 38, the stemming 20 may be formed of or contain magnetically and / or electrically conductive particulates. A suitable converter 36 and receiver 38 are described in International Application PCT /
AU98 / 00929. In this example, the stemming 20 is shown as an unpackaged stemming. However, stemming also
The container or package itself may be formed of a magnetically and / or electrically conductive material or the like, as shown in FIG. Can be buried. Initiator 1
Since the plug 22 facilitates the connection between the spark plug 8 and the detonation source, it is not necessary to pass a lead wire through the plug 22 unlike the method described with reference to FIGS. However, the method of filling the holes 12 is the same in other respects.

Another improvement of the device in which the method according to the invention can be carried out is shown in FIG. In this example, the plug 22
Are provided with wires 40, 42 connectable to an AC or DC igniter source.
The electric wire 40 is a ground or reference line and can be connected through the plug 22 itself or through the hole 12.
Is electrically connected to the ground 10 by the provision of an extension (not shown) against the inner surface of the ground. The other electric wire 42 is a control electric wire, and is electrically insulated from the electric wire 40 so that a potential different from that of the electric wire 40 can be generated. The priming agent 18 of this example is an electric priming agent, and the first terminal 44 electrically connected to the electric wire 40 by grounding the surface of the hole 12 and the second terminal electrically connected to the electric wire 42. And a terminal 46. This connection can be made via packaged stemming 34. As in the previous embodiment, energy material 14, priming 18, stemming 20 and plug 2
When 2 is placed in the hole, the upper end of the plug 22 is pushed down mechanically. The electrical wires 40, 42 extending from the plug 22 are connectable to a power supply that supplies the DC or AC current required to cause the action of the priming agent 18 and the subsequent priming of the energetic material. The active gas in the holes 12 is the same as described in the previous embodiment. The packaged stemming 34 is maintained in the hole by mechanically holding the plug 22. As the gas pressure increases, the stemming 20 compresses and substantially separates the plug 22, ie, the weight or other mechanical means acting thereon, from the substantial gas pressure, so that a weak impact is applied to the heavy material / Added to the means. Also,
Since the plug 22 is retained in the hole 12 and its lower end is below the neck region C, the likelihood of the hole neck region C being blown off is also very small. Therefore, heavy objects,
Plug 22 and stemming 20 / packaged stemming 34 can collect gas pressure at the bottom 16 of the hole. This maximizes the efficiency of the process.

The embodiment described above is a method for filling holes. However, the method according to the present invention can be extended to a method of actually forming a filling hole, and is substantially the same as the above-described embodiment, except that a drill is supplied first and then a hole is drilled. The first step has been added. In this method, it is most convenient to use the cut pieces (drill chips) generated when drilling the hole 12 to act as the stemming 20. Also, the drill itself can also be used to add weight to the upper end of the plug 22 and mechanically hold it in place, since the drill is initially supplied to drill the hole 12.

FIGS. 5-8 show alternative ways to mechanically hold the stemming 20 in the hole by using various types of plugs.

In FIG. 5, the plug 22 has tapered bars 22 a, 22 b, and the plug 22 when in the hole 12 to mechanically maintain the plug in the hole by a wedge effect.
Are slidable with each other so as to increase the overall outer diameter. The bar 22a is provided with a through hole, groove or recess, and a lead wire 28 is provided to facilitate connection between the initiator 18 and the detonator in a manner similar to that described in the embodiment shown in FIGS. It can be inserted.

In FIG. 6, the plug 22 is composed of a tapered cone 22c and a tapered wedge 22d that is complementary to each other. The cone 22 c is initially disposed with its large outer diameter end in the bore 12 and faces the stemming 20. Next, the wedge 22d is the cone 2
2c, pressure is applied to push the wedge downward from above the cone 22c so as to exert an effective wedge action into the hole 12. To assist or facilitate such a wedge effect, the wedge body 22d may be provided with a number of longitudinal finger-like projections or slits that spread radially outward when pressed against the cone 22c. further,
Due to the detonation of the energy material, the buildup of gas pressure acts to expel stemming 20 from hole 12. This means that the combination of the cone 22c and the wedge 22d is
, That is, the resistance of the stemming 20 to discharge. In this example, both the components 22c and 22d of the plug 22 are provided with through-holes on the same straight line through which the lead wire 28 can be inserted.

FIG. 7 shows a plug 22 having a conical body 22e that seals the inner surface of a wedge-shaped base 22f. Essentially, the plug 22 shown in FIG. 7 is upside down from the plug shown in FIG. In FIG. 7, the base 22f has a central tapered opening that is placed on the stemming 20 and receives the cone 22e. The cone 22e is the base 22
When pushed further downward into f, the upper end of the base 22f extends radially outward to exert a wedge action on the surface of the hole 12. The base 22f and the conical body 22e are provided with through holes of grooves on the same straight line so that the lead wire 28 can be inserted therethrough.

FIG. 8 shows the plug 22, which is probably the simplest shape, and is shown in FIG. 2 with a simple wedge 22 h with wedge action or force acting between the stemming bar 22 g and the side of the hole 12. It has a stemming bar 22g formed substantially in the same shape as the one.

In each of the embodiments shown in FIGS. 5-8, further mechanical retention of the stemming 20 or stemming package 34 weights the ends of the plug 22 in the same manner as shown in the embodiment shown in FIG. Alternatively, it can be achieved by placing a heavy object.

By holding the stemming material mechanically, the effect of stemming is increased, while at the same time reducing noise and scattered rock. The function of the stemming 20 is to direct the axial pressure created by the detonation of the energetic material into a radial compression force on the hole wall. This leads to a large frictional force that inhibits the stemming from attempting to drain out of the hole, resulting in a large holding force of the gas pressure at the bottom of the hole 12. Obviously, by mechanically retaining the stemming, i.e., by inhibiting evacuation from the hole, its effectiveness and advantages are increased. Blast efficiency is further increased by mechanically holding the stem in the hole near or below the neck region. This acts to isolate the neck area from substantial pressure, thereby reducing the likelihood of the neck area blowing off and forming dirt. As already mentioned, mechanical retention of stemming is achieved by inserting the distraction plug into the hole in a non-distracted state and using a distraction plug to support against the wall. The pressure transmitted to the distraction plug by the stemming 20 acts as a further outward distraction that increases the mechanical retention of the stemming. This effectively forms a self-tightening or locking system that holds the stemming material. Alternatively, mechanical retention can be achieved by inserting a non-distensible rod or plug into the hole and placing a weight or heavy load on the plug. This can be accomplished using equipment commonly applied to mining sites, such as levelers, chains, sandbags, and the like. Of course, it is also possible to mechanically hold the stemming material by combining both the distraction plug and a weight or heavy object acting on the plug from the outside.

FIGS. 9 and 10 show a stemming bar 22k that can be incorporated into some of the method embodiments described above. For example, stemming bar 22k or something similar to the stemming bar can be used in the embodiments shown in FIGS. 1, 2, 5 (replacing tapered bar 22a) and FIG.

The stemming bar 22k is generally formed as a cylindrical bar of metal (for example, iron), and has a first opening 44 at a first end 46 which is an end of the bar 22k inserted into the hole 12. Has a second opening 48 at or near the upper end 50, the upper end 50 being located outside the hole 12 when the first end 46 is inserted into the hole 12. . A groove 56 is formed along the longitudinal direction of the stemming bar 22k by cutting or other method and extends from the first opening 44 to the second opening 48. Multiple pins 5
8 extend across the groove 56. The pins 58 are provided at intervals substantially equal to the length of the groove 56. The primary purpose of the pin 58 is to form a guide within the bar 22k for maintaining the initiator or initiator code.

FIG. 11 shows an alternative embodiment of the stem bar 221, but an inner through hole 56 a is provided instead of the groove 56 extending along the outer surface of the stem bar 22 k. The through hole 56a extends between the first opening 44a at the bottom of the stemming bar 22l and the second opening 48 disposed on the outer peripheral surface of the stemming bar 22l near the upper end 50 of the stemming bar 22l. ing. A priming cord or lead 28 is inserted into the through hole 56a.

The configuration of the stemming bar shown in FIGS. 10 and 11 provides an alternative to the method of filling holes. One alternative is shown in FIG. Here, the energy material 14 is contained in the container 60 and is connected to the end 46 of the stemming bar 22l. This connection is by interference fit, such that the end 46 of the stemming bar 22l is tapered so that its diameter decreases in the direction toward the bottom of the hole 12. This method involves first drilling a hole in a rigid material 10 such as a rock or boulder, pushing the container 60 into the end 46 of the stemming bar 221, inserting the stemming bar 221 into the hole 12, and then priming the cord 28. Into the opening 48a to insert the through hole 56a.
Through the opening 44 a to be operatively connected to the energy material 14 and guided into the container 60.

To prevent the stemming bar 22l from being ejected from the hole 12 due to the explosion of the energy material, a heavy object such as a bullzer, a bobcat, a jumbo or the like may be placed on the end portion 50. In general, a penetrating cone fracture (PCF) is formed as shown by the break line F in FIG.

The stemming bar 22k shown in FIGS. 9 and 10 can be replaced with the stemming bar of the embodiment shown in FIG.

FIG. 12 shows still another embodiment. In this example, the container 60 holding the energy material 14 is not supported by the stemming bar 22m, and is not directly connected. Rather, it is dropped into the hole 12 before the stemming bar 22m is inserted. The energy material 14 is contained in a bag that is flammable or melts easily when contacted by a flame. A further improvement over the embodiment shown in FIG. 12 is that the detonator is not a physical detonator such as a detonator, electric match, non-electric match or squib, but rather a flame vent 5.
6b. The flame can be generated by a shotgun cartridge 62 filled with pyrotechnic material. The cartridge 62 is held in a chamber 64 located at the upper end 50 of the stemming bar 22m and is triggered by a conventional method using a gun needle. Accordingly, in this example, the flame enters the through hole 56b through the opening 48b due to the combustion of the cartridge 62, and goes out through the opening 44b, which is the opposite end of the stemming bar 22m, to contain the energy material. The bag burns, burning or exploding the energy material. The embodiment shown in FIGS. 12 and 13 is particularly suitable for small blasting operations. A substantial advantage of these embodiments is that the priming is applied to the energetic material after the stemming bar 22 has been placed in the hole 12. Since the priming agent 30 is placed in the hole 12 after the stemming bar 22, the position is accidentally or prematurely shifted due to the insertion pressure of the stemming bar 22,
The disadvantages of being damaged by the bar 22 system so as not to detonate are eliminated.

Various modifications and alterations of the above-described embodiment will be obvious to those skilled in the art without departing from the basic concept of the present invention. For example, any type of packaged or unpackaged stemming 20 that can absorb and compress the pressure generated by the following energetic material initiators can be used.

However, as described above, a liquid having a property that the viscosity increases as the shearing force increases is suitable. Further, in the embodiment shown in FIG. 1, a cross bar 26 is provided on the plug 22. As a modification, without placing a heavy object on the plug 22,
Bolts or nails can be driven into the crossbar 26 to mechanically hold the plug. However, in this example, costs are increased in that work and equipment are added. Further, the crossbar 26 can be replaced with a plate. Also, the plug 22 is preferably at a level substantially near or below the collar area of the hole 12 when its lower end is inserted into the hole. The neck region C is changed according to the shape of the hole and the characteristics of the material in which the hole 12 is formed.

All such variations and modifications can be considered within the spirit and spirit of the invention as determined from the foregoing description and the appended claims.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a method of filling holes into holes according to an embodiment of the method of the present invention.

FIG. 2 is a schematic view showing a method for filling holes into holes according to a second embodiment of the method of the present invention.

FIG. 3 is a schematic diagram showing a method for filling holes into holes according to a third embodiment of the method of the present invention.

FIG. 4 is a schematic view showing a method for filling holes according to a fourth embodiment of the present invention.

FIG. 5 is a schematic diagram showing a different embodiment of a wedge-shaped plug used in the method of the present invention.

FIG. 6 is a schematic diagram showing a different embodiment of a wedge-shaped plug used in the method of the present invention.

FIG. 7 is a schematic diagram showing a different embodiment of a wedge-shaped plug used in the method of the present invention.

FIG. 8 is a schematic diagram showing a different embodiment of a wedge-shaped plug used in the method of the present invention.

FIG. 9 is a front view showing a stemming bar used in an embodiment of a method for filling holes.

FIG. 10 is a sectional view taken along the line AA in FIG. 9;

FIG. 11 is a sectional view showing a second embodiment of the stemming bar, and also shows an alternative method of filling the holes.

FIG. 12 is a cross-sectional view showing still another embodiment of a stemming bar and a method for filling holes.

[Explanation of symbols]

 12 ... hole 14 ... energy material 18 ... initiator 20 ... stemming material 22 ... plug

[Procedural Amendment] Submission of translation of Article 34 Amendment

[Submission date] December 7, 2000 (2000.12.7)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Contents of correction]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Contents of correction]

According to the present invention, (a) a step of inserting an energy material and a priming agent into a hole; (b) a step of filling the hole with an energy absorbing stemming material to a predetermined level; Inserting a plug provided with means for facilitating coupling with the priming material into the hole so as to rest on the stemming material; and (d) substantially moving the plug from the bottom of the hole. The plug is mechanically held in the hole by external means so that when coupling the initiator and the source through the plug, the energy material is near the bottom of the hole. The gas pressure is detonated so as to increase, and the stemming material promotes the pressure generated by the gas trying to escape from the bottom of the hole toward a plug substantially separated from the gas pressure. And concentrating the gas pressure effect at the bottom of the hole.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Deleted

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Contents of correction]

According to another aspect of the invention, (a) providing a drill to drill a rigid material; and (b) inserting an energy material and a priming agent into the hole. (C) filling the hole with an energy absorbing material to a predetermined level; and (d) placing a plug provided with means for facilitating the connection between the detonator and the detonator on the stemming material. (E) mechanically retaining the plug in the hole by external means such that the plug does not substantially move from the bottom of the hole, thereby allowing the plug to pass through the plug. When coupling the initiator and the source, the energetic material is detonated such that the gas pressure near the bottom of the hole sharply increases, and the stemming material is exposed to the gas pressure from the bottom of the hole. Substantially separated And a step which acts to facilitate the pressure generated by the gas to escape toward the lug, a method of generating fill hole crushing a rigid material is provided.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0015

[Correction method] Change

[Contents of correction]

According to yet another aspect of the invention, (a) inserting an energy material and a priming agent into the hole; (b) filling the hole with an energy absorbing stemming material to a predetermined level; c) inserting a plug of a composite component, provided with means for facilitating the connection between the detonator and the detonator, into the hole so as to rest on the stemming material; d) operating the components of the plug together such that the plug creates a self-wedge effect in the hole; and (e) mechanically retaining the plug in the hole by external means. A method for filling a hole with

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Contents of correction]

According to yet another aspect of the present invention, (a) inserting an energy material and a priming agent into the hole; (b) filling the hole with an energy absorbing stemming material to a predetermined level; c) supplying and inserting a plug into the hole and mechanically retaining the stemming material in the hole by mechanically retaining the plug in the hole by external means. Is provided.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Contents of correction]

According to yet another aspect of the present invention, there is provided a stemming bar for stemming a hole in a solid material at or near a bottom of the hole with an energy material, the first bar having a first end. An opening, separated from the first opening, a second opening located outside the hole when the first end is located in the hole, and between the first and second openings. A stemming bar is provided that extends and has a groove, through hole or recess in which the priming means is disposed to priming the energetic material of the hole.

[Procedural Amendment] Submission of translation of Article 34 Amendment

[Submission date] January 29, 2001 (2001.1.29)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Contents of correction]

[Claims]

──────────────────────────────────────────────────続 き Continuation of front page (81) Designated country EP (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE ), OA (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG), AP (GH, GM, KE, LS, MW, SD, SL, SZ, TZ, UG, ZW), EA (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM), AE, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CR, CU, CZ, DE, DK, DM, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID , IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW

Claims (20)

[Claims] 1. A step of: (a) inserting an energy material and a priming agent into a hole; (b) filling the hole with an energy absorbing stemming material to a predetermined level; and (c) supplying a plug to the hole. And mechanically retaining the stemming material in the hole by mechanically retaining the plug in the hole. 2. The method of claim 1 wherein said plug is provided with means for facilitating the connection between the initiator and the initiator. 3. A plug for a composite component, comprising: (a) inserting an energy material and a priming agent into the hole; (b) filling the hole with an energy absorbing stemming material to a predetermined level. Inserting a plug provided with means for facilitating the connection between the detonator and the detonator into the hole so as to rest on the stemming material; and (d) mechanically inserting the plug into the hole. Actuating the components of the plug with each other to create a wedge effect that retains the hole. 4. The method of claim 1, wherein the step of providing a plug of the composite component into the hole includes at least two configurations operative in relation to each other to generally increase the outer diameter of the plug to push the plug into the hole. 4. The method of claim 3 including providing a plug having an element. 5. A step of: (a) inserting an energy material and a priming agent into a hole; (b) filling the hole with an energy absorbing stemming material to a predetermined level; Inserting a plug provided with means for facilitating coupling into the hole so as to rest on the stemming material; and (d) removing the plug from the bottom of the hole to substantially move the plug. Mechanically holding a plug in the hole, whereby upon coupling the initiator and the source through the plug, the energetic material is detonated such that the gas pressure near the bottom of the hole increases sharply. Wherein the stemming material acts to promote the pressure generated by the gas escaping from the bottom of the hole toward a plug substantially separated from the gas pressure, the gas pressure action The above Method of filling into the hole having a step, the to be gathered in the bottom. 6. The method of claim 6, wherein step (b) fills to a level substantially near or below the neck area of the hole. 7. In the step (c), a plug having an opening or a concave portion through which a lead wire capable of communicating between the initiator and the initiator is inserted to facilitate connection between the initiator and the initiator is provided. 7. The method according to claim 6, wherein said lead wire is inserted through said opening or recess when said plug is inserted into said hole. 8. The method of claim 7 wherein step (c) provides a plug having a transducer to facilitate wireless electromagnetic coupling between the initiator and the initiator. 9. The method of claim 5, wherein said step (d) includes placing a weight on the upper end of said plug. 10. The method of claim 5, wherein said step (d) includes the step of forcing said plug into said hole. 11. A method comprising: (a) providing a drill for drilling a rigid material; (b) inserting an energy material and a priming agent into said hole; (c) providing a predetermined level in said hole. (D) inserting a plug provided with a means for facilitating the connection between the detonator and the detonator into the hole so as to be placed on the stemming material. (E) mechanically retaining the plug in the hole such that the plug does not move substantially from the bottom of the hole, thereby coupling the initiator and the source through the plug. The energetic material is detonated such that the gas pressure near the bottom of the hole sharply increases, and the stemming material attempts to escape from the bottom of the hole toward a plug substantially separated from the gas pressure. The gas Acting to promote the pressure being created, the method comprising the steps of: 12. The method according to claim 11, wherein the step (e) places at least a part of the weight of the drill on an upper end of the plug. 13. A stemming bar for stemming a hole in a solid material, the bottom of which is filled with an energetic material, the stem having a first opening having a first end, and spaced from the first opening; A second opening located outside the hole when one end is located in the hole, and extending between the first and second openings, and a detonating means for detonating the energy material in the hole A stem, a groove, a through-hole or a recess provided to be provided. 14. A means for facilitating attachment to the container containing the energy material at the first end, wherein the energy material is simultaneously released when the stemming bar is inserted into the hole. The stemming bar according to claim 13, which is placed in the hole. 15. A method for drilling a hole in a solid material, placing an energy material in the hole, a first opening having a first end for insertion into the hole, Supplying a stemming bar having a groove, a through-hole, or a recess formed therein, the stemming bar having a second opening spaced from the first opening and located outside the hole; Inserting the end of the first, the priming means is inserted from the second opening, is inserted through the groove, through-hole or concave portion, comes out of the first opening, and is inserted into the operation terminal in contact with the energy material. Allowing the detonating means to detonate the energetic material to crush the rigid material, the method comprising filling the holes to crush the rigid material. 16. The method of claim 15, further comprising the step of mechanically retaining said stemming bar in said hole. 17. The step of placing said energy material in said hole, said step of inserting said energy material into said hole by inserting a first end of said stemming bar into said hole. 17. The method of claim 16, wherein the energy material is supported on a first end of a bar. 18. The step of supporting the energy material on a first end of the stemming bar comprises supplying a container containing the energy material and mounting the container on the first end of the stemming bar. 18. The method of claim 17, including communicating with the first opening. 19. The detonating means may be of any shape fed through a groove, through hole or recess in the stemming bar, such as a detonator, an electric match, a non-electric igniter, a squib, or a groove. 16. The method according to claim 15, comprising a flame light guided into the through hole or the recess. 20. The method of claim 11, wherein said step (c) stems said hole with a cut provided by a drill during said drilling step.