KR101893985B1 - Deck charge automatic blasting system using non-electric detonator and method - Google Patents

Abstract

The present invention relates to automatic deck charge blasting system and method using non-electric detonators that are capable of automatically blasting deck charges sequentially through the non-electric detonators, thereby allowing the detonators to be combined to each other simply and achieving easiness in construction. According to the present invention, the automatic deck charge blasting system includes: charge holes penetrated into an object to be excavated; first to N charge portions formed in each charge hole by N stages from the inlet of each charge hole, each charge portion having a charge layer formed on the lower portion thereof, into which an explosive is charged, and a grout layer formed on the upper portion thereof; second to N detonators disposed in the second to N charge portions and each having a detonator portion having a predetermined delay time difference and a signal tube having one end coupled to the detonator portion and the other end drawn to the outside of each charge portion; and a first detonator connected to the first charge portion to blast the first charging portion located at the uppermost end of the charge hole, wherein the second to N detonators are non-electric detonators and the other end of the signal tube is disposed in the interior of any one of the upper charge portions to receive the impact wave caused by the explosion of the upper charge portions to allow the charge portions to be automatically blasted, without any separate blasting device.

Description

{Deck charge automatic blasting system using non-electric detonator and method}

The present invention relates to an automatic blasting system and method using a non-electric primer, which is simple and easy to construct, by allowing sequential blasting to be automatically performed when blasting a dispersion charge using a non-electric primer.

In the case of earthworks work in various construction or civil engineering works, rock removal works are necessary if rock mass exists.

At this time, in general, a breaker work for breaking rock by using equipment, a chemical solution method, and an electric plasma method are used, but a blasting method using explosives is used in order to remove rock bed most quickly and efficiently.

However, in this blasting technique, the shock wave generated during the blasting operation is sharply attenuated depending on the distance, but some energy is transformed into elastic wave and propagated to the rock, resulting in ground vibration called blast vibration. The blasting vibration damages neighboring security objects and causes noise, causing damage to neighboring residents and livestock, thus causing civil affairs problems.

Here, a security object means a thing that must be protected from the effects of unintentional ignition or explosion of a manufacturing facility or gunpowder by the Explosives Control Act.

In order to solve the problem caused by the vibration and noise at the time of blasting, it is possible to consider a method of controlling the charged amount per delay (delayed blasting, that is, the excited amount per delay time (1/1000 s)). Conventionally, blasting techniques using a deck charge method are mainly used in order to reduce the charge per charge.

The above-mentioned dispersion charging method is a method in which one hole is divided into a plurality of sections to disperse explosives, and filled with sand or other coloring material between charges, which is blasted at one time or at different intervals.

In the conventional dispersed charge blasting method, the primer used for each stage is individually controlled outside the blasting hole. In this case, however, there is a great disadvantage that errors such as inversion or omission of the ignition sequence are likely to occur.

Another method is to set the order of bursts to trigger each explosive in each section with a delayed disparity, and then to blast them with a time difference.

However, in this case, since each primer having a different delay time difference must be installed in each section, there is a problem that a skilled worker suffers a lot of work due to complicated work. Also, in order to sequentially assign sequential numbers, a primer set with a very large number of delay delays is required. As a result, it is difficult to extinguish much of the blasting amount with the conventional primer, so that it is required to individually manufacture the individual primers.

It may also be possible to consider the use of an electronic primer that is electronically controlled to provide excellent ultra precision and to reduce blasting vibrations and noise. However, such an electronic primer is uneconomical because its price is as high as 10 times that of an electric primer or a non-electric primer.

KR 10-0196192 B1

In order to solve the above-mentioned problems, in the case of blasting for dispersion of rocks during earthworks work of various construction or civil engineering work, a plurality of charge parts positioned in the depth of the charge hole are automatically and sequentially blasted So as to provide a self-blasting system and a method for self-blasting using a non-electric primer, which is very simple and easy to construct.

The present invention is to provide an automatic blasting system and method using a non-electric primer that can significantly reduce costs compared with the use of an electronic primer.

According to a preferred embodiment of the present invention, First to Nth loading sections, each of which is provided in the loading port and is divided into N stages from the entrance of the loading port and each of which is comprised of a lower loading layer to which explosives are loaded and an upper middle layer; Second to Nth primers, which are provided in the second to the Nth loading units, each having a primer portion having a predetermined delay time difference, and a signal tube having one end coupled to the primer portion and the other end pulled out to the outside of each loading portion; A first primer connected to the first loading portion for expelling the first loading portion at the top; Wherein the second to N th primers are non-electric primers and the other end of the signal tube is provided inside any one of the upper loading portions of each loading portion to receive a shock wave due to the explosion of the upper loading portion, And automatically igniting the respective charge portions without using the electric non-electric primer.

According to another preferred embodiment of the present invention, there is provided a self-blasting automatic dispensing system using a non-electrical primer, wherein the other ends of the signal tubes of the second to N-th primers are located in the first to N- do.

delete

According to another preferred embodiment of the present invention, there are provided a plurality of chargeable holes, wherein the chargeable holes are divided into first to Mth chargeable balls according to a blasting order of the first end, and all the same ends of the first to Mth chargeable balls And a delay time difference of each of the primer parts is set so that the next step is sequentially exploded.

According to another preferred embodiment of the present invention, the charge ball is provided in a plurality of rows and is divided into first to Lth rows from a free surface, and all of the charge holes in the first row are blasted from the first loading portion to the Nth loading portion, And a delay time difference of each of the primer parts is set so that the ball is sequentially blasted.

According to another preferred embodiment of the present invention, the charge ball is provided in a plurality of rows and is divided into first to Lth rows from the free surface, and the charge ball located in the first row is sequentially exposed from the first charge part to the Nth charge part, And the delay time difference of each primer is set so that the charge (n) of the charge space located in the () column and the charge (n-1) charge of the charge space located in the (l + Provides a self-blasting system for distributed charging using a non-electric primer.

According to another preferred embodiment of the present invention, there is provided a method for constructing a self-blasting automatic dispersion system using the non-electric primer, the method comprising the steps of: (a) (b) dividing the charge ball into N stages from the top; And (c) charging the explosive with the (n) primer to the charge hole to form a charge layer, while drawing the other end of the signal tube of the (n) primer out of the charge hole, And repeating the process of forming the emulsion layer N times, sequentially from the N-th loading section to the first loading section; Wherein each of the signal tubes drawn out to the upper part of the charge hole in the second to the Nth loading part enters the other end of the loading hole at the time of installation of one loading part located above the loading part to which the signal tube is connected, Wherein the automatic blasting method is characterized in that the automatic blasting method using a non-electric primer is provided.

According to the present invention, a non-electric primer tube is disposed in a lower charging section while dispersing an explosive when a rock is to be removed from earthworks work of various construction or civil engineering works, and the other end of the signal tube of the non- The explosion of the charge section explosion located at the front end allows the signal tube to be aroused and the blasting of the bottom charge section automatically proceeded.

Accordingly, since a plurality of charge parts positioned along the depth of the charge hole are automatically and sequentially blasted, the combination of the primer is very simple, and the construction can be easily performed. Thus, the automatic blasting of the dispersion charge using the non- Systems and methods.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of an automatic blasting system for distributed charging using a non-electric primer of the present invention. FIG.
2 is a cross-sectional view showing an embodiment in which a plurality of charge holes are horizontally exploded;
FIG. 3 is a perspective view showing a state in which the embodiment of FIG. 2 is expanded in two directions; FIG.
FIG. 4 is a perspective view showing an embodiment in which a plurality of rows of charge holes are aroused in a vertical direction; FIG.
5 is a cross-sectional view showing an embodiment of a case where a charge ball is compounded in horizontal and vertical directions;
6 is a view showing an embodiment in which the present invention is applied to tunnel blasting;
7 is a view showing a sequential installation process of the loading section;

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of an automatic blasting system for distributed charging using a non-electric primer of the present invention. FIG.

As shown in FIG. 1, an automatic blasting system for dispersed charging using a non-electric primer according to the present invention includes a charge hole 2 punctured at an excavation object 1; (1), which is provided in the charge receptacle (2) and is divided into N stages from an entrance of the charge receptacle (2) and composed of a lower charge layer (31) N charging section (3); The first to n-th loading sections 3 are provided with a priming section 41 having a predetermined delay time difference and a signal which is coupled to the priming section 41 at one end and is drawn out to the outside of each loading section 3 at the other end, Second to Nth primer tubes 4 constituted by a tube 42; A first primer (5) connected to said first charge part (3) for igniting said first charge part (3) at the top; The second to Nth primer tubes 4 are electrically non-conductive primers and the other end of the signal tube 42 is provided inside any one of the upper loading portions 3 of each loading portion 3, (3) is automatically received without a separate detonator by receiving the shock wave due to the explosion of the charge part (3).

The present invention provides an automatic blasting system and method using a non-electric primer, which is simple and easy to construct, by allowing sequential blasting to be performed automatically when blasting a dispersion charge using a non-electric primer .

The charge hole 2 is drilled in the excavation object 1.

The excavation object 1 is intended for open-air blasting, tearing, tunnel blasting, and the like.

The first to Nth loading sections (3) are provided in the loading hole (2).

The first to Nth loading sections 3 are divided into N stages from the entrance of the loading bay 2. Each loading section 3 is divided into an upper loading layer 31 and a lower upper loading layer 31, (32).

The entrance side of the charge hole 2 is located above the charge hole 2 and the deep side of the charge hole 2 is located below the charge hole 2.

The topmost loading section 3 located at the entrance side of the loading bay 2 is the first loading section 3 and is sequentially assigned from the top to the bottom so that the lowest loading section 3) becomes the Nth Addiction Part (3).

Each loading section 3 is composed of a lower loading layer 31 and an upper middle layer 32.

The chargeable layer (31) is charged with explosives.

The methane layer 32 is located above the loading layer 31 to sufficiently exhibit the power of explosive by the sealing effect. The upper part of the explosive is filled with clay, sand, and so on.

The meshes constituting the above-mentioned mesial layer are also referred to as stemming materials.

The second to Nth primer tubes 4 are connected to the primer part 41 provided in the second to N-th loading parts 3 and one end is coupled to the priming part 41 and the other end is connected to the outside And a signal tube 42 which is drawn out to the outside.

The second to Nth primers 4 are electrically non-conductive primers and the other end of the signal tube 42 is provided inside any one of the upper loading portions 3 of each loading portion 3.

A non-electric detonator applies a shock wave to a very thin signal tube 42 so that the detonator 41 connected thereto is ignited.

On the other hand, the explosion line is covered with plastics or metal pipes or the like using explosives. The explosion line is used for simultaneous blasting mainly at a speed of 7,000 / ms. In case of the detonation line, it is possible to use the MS connector on the ground to give the delay time difference.

Although the signal tube 42 has a long end shape like a detonating line, unlike the explosion line, the heart medicine is not fully charged and a small amount of powder is coated on the inner surface of the tube. The outer diameter of the signal tube 42 is 3.0 to 3.2 mm, the inner diameter is 1.0 to 1.2 mm, the dosage is 15 g / m 2 to 25 g / m 2, and the speed is 2,000 m / sec.

Although the signal tube 42 is generally ignited by a blast or a primer, it can transmit a shock wave even when a strong impact is generated due to explosion of a nearby explosive, thereby detonating the primer.

The present invention utilizes the aerodynamic characteristics of the non-electric primer to receive a shock wave by explosion of the charging part (3) of the other end in the explosive charge hole (2), which is ignited without using a detonator or a primer, Dispense distributed explosives automatically.

Specifically, a non-electrical priming tube is disposed in the lower loading portion 3 while the explosive is dispersed, and the other end of the signal tube 42 of the non-electrical priming tube is positioned in the loading portion 3 located at the front end, (3) Explosion of the explosive part causes the signal tube (42) to be aroused, so that the blasting of the lower loading part (3) proceeds automatically.

That is, since the loading section 3 at the rear end is sequentially exploded by the loading section 3 at the front end, only the delay time difference between the loading section 3 at the front end and the loading section 3 at the rear end is set do. Accordingly, the combination of the primer tube 4 can be constructed very simply, which is economical and easy to construct.

The other end of the signal tube 42 is positioned inside the front loading deposit layer 31 or inside the loading deposit layer 31 so that the signal tube 42 of the rear loading deposit layer 31 can easily be aroused by the detonation of the front loading deposit layer 31 31).

The first primer 5 is connected to the first charging part 3 to ignite the top first charging part 3.

The first primer 5 connected to the uppermost first charging portion 3 is connected to an external starter or the like and can be exposed by operation of the operator.

The first primer 5 may be any one of an electric primer, a non-electric primer, and an electronic primer capable of applying a delay time difference.

And the other end of the signal tube 42 of the second to Nth primer tubes 4 may be positioned in the first to (N-1) th chargeable portions 3, respectively.

The explosion order of the loading section 3 can be adjusted according to which of the loading section 3 of the loading section 3 at the front end is disposed at the other end of the signal tube 42. [ However, in this case, the installation work may be complicated, and therefore, the other end of the signal tube 42 connected to each loading part 3 can be arranged in the loading part 3 of the immediately preceding stage so as to simplify the installation work.

As described above, if the signal tube 42 at each stage is held in the loading section 3 at the immediately preceding stage, it can be detonated sequentially from the first stage to the N-th stage.

The primer 41 of the second to N-th primer 4 may be configured to have a predetermined delay time difference.

When the charge ball 2 is entirely blasted in Japanese, the primer 41 of the non-electric primer 4 having no delay time can be used as a primer. However, in order to minimize noise, vibration, etc., it is preferable to perform ground blasting.

It is preferable that the delay time difference of each of the primer portions 41 is set to the same value for simplification of the primer 4 combination and ease of operation. Of course, in some cases, it is also possible to group several stages so that the delay time differences are different for each group, or the delay time differences of all stages may be set differently.

FIG. 2 is a sectional view showing an embodiment in which a plurality of charge holes are horizontally widened, and FIG. 3 is a perspective view showing a state in which the embodiment of FIG. 2 is expanded in two directions.

As shown in FIGS. 2 and 3, a plurality of charge bores 2 are provided and are divided into first to Mth charge bores 2 according to the blasting order of the first end, and the first to Mth The delay time difference of each of the primer tubes 2 can be set so that the subsequent stages are sequentially exploded after the same ends of the priming holes 2 are exploded.

This is an embodiment of the case where the upper layer A ₁ section is blasted down to the A _N section sequentially after completion of blasting.

For example, if the delay time difference is applied to the second primer 4 of the first charge ball 2 longer than the time difference between the first charge ball 2 and the M charge ball 2, the first charge ball 2 ) To the Mth charging bay (2), the first charging unit (3) located at each first stage is sequentially exploded, and after the blasting of the A ₁ zone is completed, the second charging unit The explosion of the A ₂ section is completed by sequentially exploding from the second charging section 3 located at the first charging section 3 to the second charging section 3 of the M charging location ₂ .

If this process is repeated and all of the N-th loading section 3 located at the N-th stage of the M loading bay 2 is exploded, the blasting to the A _N section is completed.

In other words, the process of sequentially explosion of the same stage in the horizontal direction and subsequent explosion of the next stage automatically proceeds without any special operation or electronic programming on the ground.

As shown in FIG. 3, when the charge holes 2 are provided in a plurality of rows, the delay time difference can be set so that all the charge holes 2 located at the same end on the horizontal plane are blasted and then sequentially blasted to the bottom.

Fig. 4 is a perspective view showing an embodiment in which a plurality of rows of charge holes are bombarded in a vertical direction. Fig.

As shown in FIG. 4, the charge holes 2 are provided in a plurality of rows and are divided into first to Lth rows from the free surface, and the charge holes 2 in the front row are arranged in the order from the first charge part 3 to the N- The delay time difference of each primer 4 can be set so that the charge holes 2 of the next row are sequentially blown after the blast holes 3 are all blown up to the portion 3.

Figure 4 is a free face one side open, the blasting by sequentially B _L B period after completion of the _first period of one row blasting.

In this case, the delay time difference of each column is set to be the same as that of the other columns, and only the first charge hole (2) of each column can be set longer than the delay time difference of the whole column with respect to the first charge hole (2).

Each column can set a delay time difference of the primer part 41 so that it is sequentially blown from the one charging hole 2 to the other charging hole 2. [

5 is a cross-sectional view showing an embodiment in which charge holes are combined in a horizontal and vertical direction, and FIG. 6 is a view showing an embodiment in which the present invention is applied to tunnel blasting.

As shown in FIG. 5, the charge holes 2 are provided in a plurality of columns and are divided into first to Lth rows from the free surface, and the charge holes 2 located in a first column are disposed in the first charge acceptance portion 3 to the Nth (N) of the loading bay 3 located in the (ℓ) row and the loading bay n of the loading bay 2 located in the (ℓ + 1) th row of the loading bay 2, -1) The delay time difference of each of the primer portions 41 can be set so that the charging part 3 is simulated simultaneously.

This is an embodiment in which the charge holes 2 are blended in a stepwise manner in the vertical and horizontal directions.

In this case, after the front upper region C ₁ is a first blasting region C ₂ of the section C ₁ is a diagonal rear blasting in order, is completed the same way as the blasting to C _L region.

The delayed parallax of the first column second charge part (3) is set to be the same as the delay time difference of the first column (2) of the second column based on the first loaded part (3) of the charge hole (2) located in the first column.

That is, the delay time difference of the (n) loading section 3 of the (1) column is made equal to the delay time difference of the (n-1) loading section 3 of the (l + And the corresponding section is blasted.

Here, (n) represents an arbitrary number from 1 to N.

FIG. 6 shows an embodiment in which the present invention is applied to a tunnel blasting. FIG. 6 shows a case where the center hole is a V-cut hole. However, even when the center hole is a parallel hole, .

However, when puncturing a deep hole with a slanted hole, a small baby hole must be drilled. At this time, the small inclined ball is the first shot of the primordial primer which is not given the order, and is charged in the first stage only. D ₁ section is sequentially blasted by the set time difference and then D ₂ section is sequentially blown by the same order as the time difference of D ₁ section.

7 is a view showing a sequential installation process of the loading section.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is directed to an automatic blasting method using a non-electrical primer for constructing an automatic blasting system for a dispersed charge using the non-electric primer of the present invention described above with reference to FIGS. 1 to 6.

In the automatic blasting method for dispersed charging using a non-electric primer of the present invention, a step (a) is to puncture the charging hole (2) in the excavation object (1); And (b) dividing the charge hole (2) into N stages from the top; .

Thereafter, (c) the explosive layer provided with the (n) primer tube 4 is loaded into the charge hole 2 to form the charge layer 31, and the signal tube of the (n) primer tube 4 The process of repeating the process of drawing the other end to the outside of the charge hole 2 and forming the middle layer 32 on the charge layer 31 is repeated N times so as to form the first charge part 3 3).

At this time, the signal tubes 42 drawn out to the upper part of the charge receptacle 2 in the second to the Nth loading part 3 are connected to each other by a charging part 3 located above the loading part 3 to which the signal tube 42 is connected, (3 '), the other end is drawn into the charge hole (2) and positioned in the upper loading part (3').

Referring to Fig. 7, the installation process of the loading section 3 will be described. First, the bottom loading section 3 is installed (Fig. 7 (a)). At this time, the signal tube 42 is taken out of the charge hole 2.

Next, the loading layer 31 of the upper loading section 3 'is installed on the lower loading section 3 (Fig. 7 (b)). At this time, the upper signal tube 42 'is drawn out to the outside of the charge hole 2, and the lower signal tube 42 is allowed to enter into the charge hole 2.

And the intermediate layer 32 'of the upper loading portion 3' is installed (Fig. 7 (c)).

7 (b) to (c) are repeated to sequentially install the loading section 3 from the lower part to the upper part.

The signal tube 42 is pulled out of the charge hole 2 at the time of installation of the nth loading part 3 and then inserted into the loading hole 2 after at least one end of the loading part 3 is installed in the upper part, And the other end of the tube 42 is located in the loading section 3 at the upper end.

In FIG. 7, the loading section 3 'at the upper end is composed of the loading section at the upper right end. However, the loading section 3' at the upper end may be the loading section at the upper ends.

It is preferable that the other end of the signal tube 42 is disposed between the loading layer 31 and the middle layer 32 or within the loading layer 31 so that the understanding loading section 3 can be exposed in the set order.

1: Excavation target
2: Charge ball
3: First to Nth charging sections
31:
32:
4: 2nd to N th primers
41:
42: Signal tube
5: First primer

Claims (7)

A charge hole 2 drilled in the excavation object 1;
(1), which is provided in the charge receptacle (2) and is divided into N stages from an entrance of the charge receptacle (2) and composed of a lower charge layer (31) N charging section (3);
The first to the ninth charging parts 3 are provided with the priming part 41 having the predetermined delay time difference and the one end is coupled to the priming part 41 and the other end is taken out to the outside of each loading part 3 Second to Nth primer tubes 4 constituted by signal tubes 42;
A first primer (5) connected to said first charge part (3) for igniting said first charge part (3) at the top; Respectively,
The second to Nth primer tubes 4 are electrically non-conductive primers and the other end of the signal tube 42 is provided inside any one of the upper loading portions 3 of the loading portion 3, (3) is automatically ignited without a separate detonating device by receiving a shock wave due to the explosion of the explosive device.
The method of claim 1,
And the other end of the signal tube (42) of the second to Nth primer tubes (4) is located in the first to (N-1) th chargeable part (3).
delete The method of claim 1,
A plurality of the charge holes 2 are provided and are divided into first to Mth charge holes 2 according to the blasting order of the first end,
And a delay time difference of each of the primer tubes (41) is set so that the subsequent stages are sequentially exploded after all the same ends of the first to Mth charge wells (2) are exploded. Blasting system.
The method of claim 1,
The charge holes 2 are provided in a plurality of rows and are divided into first to Lth rows from a free surface,
The delay time difference of each of the primer portions 41 so that the charge hole 2 in the front row is blasted sequentially from the first charged portion 3 to the Nth charged portion 3, Characterized in that the self-blasting system is equipped with a non-electric primer.
The method of claim 1,
The charge holes 2 are provided in a plurality of rows and are divided into first to Lth rows from a free surface,
The charge ball 2 located in the first row is sequentially exposed from the first chargeable portion 3 to the Nth charged portion 3,
(N-1) loading section 3 of the loading bay 2 located in the (ℓ + 1) th row and the (n) loading section 3 of the loading bay 2 located at the (ℓ) And the delay time difference of each of the detent parts (41) is set so that the delay time difference of each of the detent parts (41) is set.
An automatic blasting system for a distributed charging system using a non-electric primer according to claim 1,
(a) boring the charge hole (2) in the excavation object (1);
(b) dividing the charge hole (2) into N stages from the top; And
(c) a chargeable explosive having a (n) primer tube 4 is charged in the charge hole 2 to form a charge layer 31 while a signal tube 42 of the (n) primer 4 is charged, The process of drawing the other end to the outside of the charge hole 2 and then forming the middle layer 32 on the charge layer 31 is repeated N times to form the first charge section 3, Sequentially; Respectively,
Each signal tube 42 drawn out from the second to the Nth loading section 3 to the upper part of the loading hole 2 is connected to a loading section 3 located above the loading section 3 to which the signal tube 42 is connected, '), The other end is drawn into the charge hole (2) and positioned in the upper loading part (3').

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