JPH07145698A - Equipment and method of breaking article to be broken - Google Patents

Abstract

PURPOSE:To prevent the possibility of explosion so far as electric energy is not fed, even when a breaking device for an article to be broken is buried previously in the article to be broken, to eliminate the need for the boring of a mounting hole and the installation of the breaking device, and to facilitate a process for installation by sealing an electrode with a metallic small-gage wire into a breaking vessel filled with a breaking liquid. CONSTITUTION:When a column, etc., for a structure H2 are carried out, a breaking device 1, in which electrodes 4 with metallic small-gage wires 8 are sealed into a breaking vessel 2 filled with a breaking liquid 3, is buried previously at a specified position. When the structure H2 is removed, an energy supply circuit 9 is connected at terminals 5, 5, and electric energy is stored in an energy storage circuit 13. When the metallic small-gage wires 8 are supplied with electric energy in a short time, the metallic small-gage wires 8 are melted and evaporated, and the structure H2 is broken by impact force by the pressure of vaporization.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for destroying an object to be destroyed using impact energy generated by electric discharge.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 17, a destruction device 51 for destroying an object to be destroyed 50 such as rock mass is
There is one in which a metal thin wire 54 made of Cu, Al or the like is connected to the tips of the pair of electrodes 52, 53, and a capacitor 55 is used as a power source for supplying a discharge to the metal thin wire 54.

When destroying the object to be destroyed 50 by using the destroying device 51, a device inserting hole 56 is formed at a predetermined position of the object to be destroyed 50, and the device inserting hole 56 is filled with breaking water 57, and the electrode 52 is discharged. , 53 and the thin metal wire 54 are dipped in the breaking liquid 57, and electric energy is charged and accumulated in the capacitor 55 and discharged to the thin metal wire 54. Then, the thin metal wire 54 is rapidly melted and evaporated, and the breaking liquid 57 is also added.
Is vaporized and receives the impact force, and the object to be destroyed 50 is destroyed.

[0004]

As described above, when the device insertion hole 56 is formed from above the object to be destroyed 50, the device insertion hole 56 can be filled with the breaking liquid 57.
As shown in the figure, the position suitable for the destruction of the destructible object 50 is the side part thereof, and it is necessary to make the device insertion hole 56 in the horizontal direction, or the position suitable for the destruction of the destructible object 50 is In the case where it is necessary to make the device insertion hole 56 at the lower part in the elevation direction, the device insertion hole 56 cannot be filled with the destruction liquid 57, and it becomes difficult to destroy the object 50 to be destroyed.

By the way, in recent years, various events have been held, but in many cases, the removal date is specified for temporary facilities such as pavilions. And when removing these structures, even temporary structures need to be removed on the same large scale as permanent structures, and explosives like dynamite were used. The destruction method is dangerous.

Therefore, an object of the present invention is to provide a destruction device and a destruction method for an object to be destroyed which can solve the above problems.

[0007]

Means for solving the problems in the present invention is as follows. A pair of electrodes are connected to a capacitor, both electrodes are connected to each other through a thin metal wire, and the capacitors are precharged and accumulated. In a destruction apparatus that discharges electric energy to a thin metal wire through the electrode in a short time to rapidly melt and evaporate the thin metal wire to destroy an object to be destroyed by its impact force, the electrode and the thin metal wire are destroyed. The destruction device is immersed in the destruction liquid filled therein and enclosed in a destruction container.

Further, in the destruction apparatus, a gel-like substance is filled in the destruction container instead of the destruction liquid, and the electrodes and the fine metal wires are immersed in the gel-like substance. Further, it is a destruction method in which a destruction device is mounted in a mounting hole formed in the object to be destroyed in advance, and when the object to be destroyed is destroyed, electric energy is discharged from the capacitor to the thin metal wires to destroy the object to be destroyed.

Further, a wedge-shaped groove continuous to the mounting hole is formed in a predetermined direction of the mounting hole formed in the object to be destroyed in the breaking direction,
It is a destruction method that destroys the object to be destroyed. In addition, the destruction device,
It is installed in each of the mounting holes that are formed close to each other to the object to be destroyed, and when the object to be destroyed is destroyed, the energy is supplied from the capacitor to the thin metal wires with a timing shift to discharge the object to be destroyed. It is a destruction method.

[0010]

In the above structure, since the electrode and the thin metal wire are immersed in the destruction liquid filled in the destruction container and sealed in the destruction container, the device to be destroyed can be mounted horizontally or in the elevation angle for mounting the device. Even when it is necessary to make a hole, the breaking liquid does not spill out from the mounting hole, and can be mounted in the mounting hole in any direction.

Further, by filling the gel-like substance in the breaking container, the gel-like substance is excellent in the transmission speed of the impact force, so that the breaking energy efficiency at the time of breaking the object to be broken becomes good.

Further, by attaching a destruction device which does not explode unless electric energy is supplied to the object to be destroyed in advance, there is no danger of explosion due to vibration of the object to be destroyed like dynamite, and it is safe. By mounting on the object, it is possible to omit a process for installation such as making a mounting hole in the object to be destroyed.

Further, by forming a wedge-shaped groove continuous to the mounting hole in the breaking direction at a predetermined position of the mounting hole formed in the object to be destroyed, and destroying the object to be destroyed, the impact force at the time of breaking is the impact force of the object to be destroyed. Since the fracture surface in the groove direction is formed by acting so as to fracture from the groove portion of, the position of forming the groove can be determined according to the situation at the site, and the fracture direction of the object to be destroyed can be determined.

Further, a plurality of mounting holes close to each other are formed in the object to be destroyed, a destruction device is mounted in each of the mounting holes, and electric energy is supplied from the capacitor to the thin metal wire at a shifted timing to discharge the mounting holes. Since the partition walls between the mounting holes are broken to make the mounting holes continuous and the mounting holes are made elliptical and then the object to be destroyed is broken, the breaking direction can be set by the mutual positional relationship of the plurality of mounting holes.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the destruction apparatus of the present invention will be described below with reference to the drawings. 1 is a partially cutaway front view of a destruction apparatus showing an embodiment of the present invention, FIG. 2 is a configuration diagram showing an experimental example of the present invention,
FIG. 3 is a sectional view showing an example in which the destruction apparatus of the present invention is used for fracture of rock mass, FIG. 4 is a sectional view of the destruction apparatus of the present invention used in a concrete structure such as a building, and FIG. 5 shows experimental results. It is a graph figure which shows.

As shown in FIG. 1, a breaking device 1 according to an embodiment of the present invention is a breaking container 2 made of plastic rubber (synthetic rubber) or waterproof paper and filled with a breaking liquid 3 (for example, water). A pair of electrode rods 4, 4 are provided on the top plate 2a of the destruction container 2.
(Made of, for example, Cu) is inserted through the through hole 2b, and the electrode rods 4 and 4 are fixed to the top plate 2a by a nut B1 (or caulking) and immersed in the breaking liquid 3 and the breaking container 2. It is enclosed.

Further, the both electrode rods 4, 4 are held in the middle by holding members 7, 7 for holding the electrode rods 4, 4 in parallel, and thin metal wires are provided at the tips of the both electrode rods 4, 4. 8 (made of Cu, Al, for example) is attached by welding or caulking.

Portions of the two electrode rods 4, 4 protruding from the top plate 2a are used as terminals 5, 5, and a terminal cover 6 for preventing the terminals 5, 5 from forming an insulating film on the top plate 2a. Is attached.

As shown in FIG. 2, an energy supply circuit 9 for supplying electric energy to the thin metal wire 8 is provided, and the energy supply circuit 9 is connected to the terminal 5 and a power supply device 10, and the power supply. Device 10 and one terminal 5,
5, a control circuit 11 connected in series for controlling the amount of electric energy stored in the power supply device 10, and a discharge switch 12 connected between the control circuit 11 and one terminal 5. It is composed of the power supply device 10 and an energy storage circuit 13 composed of a capacitor connected in parallel between the terminals 5 and 5.

Next, with reference to FIG. 3, description will be given of a destruction method for destroying the bedrock H1 (object to be destroyed) using the destruction apparatus 1 according to the embodiment of the present invention. First, when destroying the upper part of the bedrock H1, as shown in the upper part of the figure, a mounting hole 20a for mounting the destruction device 1 of the present invention is drilled in the bedrock H1, for example, in the vertical direction. Attach the destruction device 1.

The energy supply circuit 9 is connected to the terminals 5 and 5, a predetermined capacity of electric energy is stored in the energy storage circuit 13, and the discharge switch 12 is turned on. Supply electrical energy to 8. Then, the thin metal wire 8 is melted and evaporated, and the breaking liquid 3 is vaporized, and the rock H1 is broken or weakened by the impact force.

When destroying the middle portion (side portion) of the bedrock H1, as shown in the lower part of the figure, a mounting hole 20a is horizontally drilled, and the breaking device 1 is mounted from the side into the mounting hole 20a. Then, in the same manner as above, electric energy is supplied to the thin metal wires 8 to destroy them.

Even if the mounting hole 20b is drilled horizontally in the middle of the bedrock H1, the breaking liquid 3 has already been filled in the breaking container 2 of the breaking device 1, so that the breaking liquid 3 is mounted in the mounting hole 20. Rock bed H1 without spilling
Any direction of the mounting holes 20a, 20b drilled in can be dealt with.

Next, referring to FIG. 4, a structure H such as a building
A method of destroying 2 (destroyed object) will be described.
This is to bury the destruction device 1 configured as described above in concrete at a predetermined location in advance when constructing a pillar or the like of the structure H2.

In this case, the tips of the terminals 5 and 5 are led out to the surface of the structure H2 by the electric wire 14 and attached to a terminal block 15 made of an insulating material.
It is fixed to the structure H2 by means of 2, and this terminal block 15 is covered with a terminal cover 16. And when the structure H2 is destroyed,
Similar to the above embodiment, the energy supply circuit 9 is connected to the terminals 5 and 5.
, The electric energy of a predetermined capacity is stored in the energy storage circuit 13, and the discharge switch 12 is turned on to supply the electric energy to the thin metal wire 8 in a short time to melt and evaporate the thin metal wire 8. Then, the breaking liquid 3 is vaporized, and the structure H2 is broken or weakened by the impact force.

According to this embodiment, since the destruction device 1 does not explode unless electric energy is supplied, even if the destruction device 1 is embedded in the structure H2 in advance, the structure H2 vibrates like dynamite. There is no danger of explosion due to the above, and it is safe. Further, by embedding the destruction device 1 in the structure H2 in advance, it is possible to omit a process for installing a device such as drilling a mounting hole in the structure H2.

FIG. 4 is a result of an experiment using the apparatus according to the embodiment of the present invention, and shows a waveform of the generated pressure (P) accompanying evaporation and vaporization of the thin metal wire 8. In the figure, the horizontal axis represents elapsed time (t). The amount of electric energy stored in the capacitor of the energy storage circuit 13 was 750 J, and the diameter of the thin metal wire 8 was 0.3 mm.

According to the results of this experiment, the generated pressure (Pm) at a position 1 cm from the discharge point is 5000 kg.
/ Cm ² was obtained. As described above, even if it is necessary to make a mounting hole in the object to be destroyed such as bedrock in the horizontal direction and the elevation angle direction, the destruction liquid is filled in the destruction container and the destruction liquid is attached. It does not spill out of the hole, so it can be installed in mounting holes in any direction, and the destruction device in this embodiment does not explode unless electric energy is supplied, so it is possible to use it like a building in advance. Even if it is buried in the object to be destroyed, there is no fear of explosion due to the vibration of the object to be destroyed, unlike dynamite, and it is safe, and the process for installation such as drilling a mounting hole in the object to be destroyed can be omitted.

When destroying a wide range of objects to be destroyed, efficient destruction is achieved by connecting electrical wiring to a plurality of destruction devices and collecting them together and supplying electric energy to each destruction device at once or sequentially. Will be possible.

In the above embodiment, water or the like was used as the breaking liquid 3 in the breaking container 2, but the breaking device 1 of the present invention is not limited to this, and gelatin instead of the breaking liquid 3 is used. Alternatively, a gel substance such as agar or agar may be filled, and the electrode rod 4 and the thin metal wire 8 may be immersed in the gel substance.

Also in this case, as in the above-mentioned embodiment, the bedrock H1 is used.
A mounting hole 20a is formed in the mounting hole 20a, the destruction container 2 using a gel-like substance is mounted in the mounting hole 20a, electric energy of a predetermined capacity is stored in the energy storage circuit 13, and the discharge switch 12 is turned on to turn on the short-circuit. The rock H1 is destroyed by supplying electric energy to the thin metal wires 8 during the time.

Alternatively, the destruction container 2 filled with the gel-like substance is embedded in the structure H2 in advance, and the structure H2 is destroyed in the same manner as in the above embodiment. In the case of the breaking device 1 using this gel-like substance, the gel-like substance is excellent in the transmission speed of the impact force, so that the breaking energy efficiency at the time of breaking the object to be destroyed is good, and the gel-like substance is Since the work of filling the destruction container 2 is easy, the destruction device 1 can be easily manufactured.

Another embodiment of the method of destroying the object to be destroyed is
This will be described with reference to FIGS. 6 to 9. This is, as shown in FIG. 6, in a mounting hole 20a formed in an object to be destroyed, and a wedge-shaped groove 20c continuous with the mounting hole 20a. And a pair of them are formed in the direction of the fracture surface. Then, the destruction container 2 filled with the destruction liquid 3 or the gel substance is mounted in the mounting hole 20a having the groove 20c, and a predetermined capacity of electric energy is stored in the energy storage circuit 13, and the discharge switch 12 is turned on. Then, electric energy is supplied to the thin metal wires 8 in a short time to destroy the object to be destroyed.

At the time of breaking the object to be destroyed, the impact force is dispersed radially in the radial direction of the phantom sphere in FIGS. 6 and 7 with the thin metal wire 8 as the center, but the wedge-shaped groove 2 is formed in the mounting hole 20a.
By forming a pair of 0c, an impact force acts in the arrow directions D1 and D2 in the figure so as to separate the surfaces on the line C1 connecting the grooves 20c, and the line C connecting the grooves 20c.
1 to form a fracture surface that has been destroyed. Therefore, according to this method, the groove 2 is formed so as to form a fracture surface in a desired direction.
By setting the position where 0c is formed, a method of destroying an object to be destroyed according to the situation at the site becomes possible.

As shown in FIGS. 8 and 9, the groove 20c can be easily formed by driving a blade-shaped pile 25 into the mounting hole 20a that has been formed once.

Furthermore, another embodiment of the destruction method is shown in FIG.
Describing with reference to FIG. 16, this is because a plurality of (two in the figure) columnar mounting holes 20a are formed in the object to be destroyed so as to be close to each other via the partition wall 20d of the object to be destroyed. 20
A destruction device 1 is attached to each a to destroy, and the discharge switch 12 in each destruction device 1 is connected to a timer (not shown), and after one discharge switch 12 is turned on, the other discharge switch 12 is turned on. So that
As shown in FIG. 16, electric energy is supplied to the metal thin wire 8 of each destruction device 1 by shifting the timing by T time for discharge.

The destruction device 1 used in this destruction method is
The breaking container 2 may be filled with either the breaking liquid 3 or the gel substance. In the above-mentioned destruction method, first, the partition device 20d between the two mounting holes 20a is formed by the one destruction device 1.
As shown in FIG. 11, the two mounting holes 20a, which were separated by the partition wall 20d, are removed as shown in FIG.
As shown in FIG.

In this state, when the discharge switch 12 of the other destruction device 1 is turned on and electric energy is supplied to the fine metal wire 8 by discharge, the impact force first acts in the minor axis direction of the inner wall of the elliptical hole, It works on the inner wall in the major axis direction,
5 are synthesized in the directions D3 and D4 indicated by the arrows, and the object to be destroyed is destroyed with the major axis direction C2 of the elliptical hole as the fracture surface.

The amount of energy (voltage) stored in the energy storage circuit 13 of one of the destruction devices 1 depends on the partition wall 2.
It suffices to be able to destroy 0d, and the destruction device 1 destroys the object to be destroyed.

According to the breaking method in this embodiment, the breaking direction can be set to a desired direction depending on the situation of the site by the mutual positional relationship of the plurality of mounting holes 20a.
Moreover, the mounting hole 20a is not required to be formed in an elliptical shape in advance, so that the work efficiency for destroying the object to be destroyed can be improved.

[0041]

As is apparent from the above description, since the destruction apparatus according to the present invention has the destruction container filled with the destruction liquid, the destruction object is provided with the mounting hole for mounting the apparatus in the horizontal direction or the elevation angle direction. Even if it is necessary, the breaking liquid does not spill out from the mounting hole and can be mounted in the mounting hole in any direction.

Further, a gel-like substance is filled in place of the breaking liquid, and the gel-like substance is excellent in the transmission speed of impact force.
By immersing the electrode rod and the thin metal wire in this gel-like substance, it is possible to improve the breaking energy efficiency when breaking the object to be destroyed.

Further, according to the destruction method of the present invention, since the destruction device which does not explode unless electric energy is supplied is buried in the object to be destroyed in advance, there is no fear of explosion due to the vibration of the object to be destroyed like dynamite, and it is safe. Further, by embedding in the object to be destroyed in advance, it is possible to omit a process for installation such as drilling a mounting hole in the object to be destroyed.

In addition, a wedge-shaped groove is formed continuously in the mounting hole formed in the object to be destroyed, and the destruction container is mounted in the mounting hole in which the groove is formed to destroy the object to be destroyed. The fracture surface can be formed in a desired direction depending on the position to be broken, and the object to be destroyed can be destroyed according to the situation at the site.

Further, by forming a plurality of mounting holes close to the object to be destroyed, mounting the destruction devices in the respective mounting holes, and discharging the electric energy by discharging the metal wires of each destruction device at different timings. First, the partition between the mounting holes is destroyed to make the mounting hole elliptical and then the object to be destroyed is destroyed, so that a fracture surface can be formed in the major axis direction of the mounting hole. Due to the mutual positional relationship of the holes, the destruction direction of the object to be destroyed can be set to a desired direction according to the situation at the site.

[Brief description of drawings]

FIG. 1 is a front view of a partially broken essential part of a breaking device showing an embodiment of the present invention.

FIG. 2 is a configuration diagram showing an experimental example of the destruction device.

FIG. 3 is a cross-sectional view in which the destruction device is likewise mounted on rock.

FIG. 4 is a cross-sectional view showing another embodiment in which a destruction device is embedded in a structure.

FIG. 5 is a graph showing a waveform of the generated pressure of the breaking liquid due to the evaporation and vaporization of the thin metal wire obtained by the experimental apparatus of the present invention.

FIG. 6 is a horizontal sectional view in a breaking method showing another embodiment of the present invention.

FIG. 7 is a vertical sectional view of the same.

FIG. 8 is a horizontal sectional view when forming a groove in the mounting hole.

FIG. 9 is a vertical sectional view of the same.

FIG. 10 is an overall partially broken view showing a state in which a breaking device in a breaking method according to another embodiment of the present invention is mounted in a mounting hole.

FIG. 11 is an enlarged horizontal sectional view of a groove portion similarly formed in the object to be destroyed.

FIG. 12 is a schematic vertical cross-sectional view of a state in which the destruction device is mounted in the groove formed in the object to be destroyed.

FIG. 13 is a horizontal cross-sectional view of an object to be destroyed which is elliptical by supplying electric energy to the thin metal wire of one of the destruction devices.

FIG. 14 is likewise a schematic vertical sectional view.

FIG. 15 is a horizontal sectional view showing a breaking direction of the object to be destroyed.

FIG. 16 is a time chart showing the timing of destruction of the object to be destroyed by the one destruction device and the other destruction device.

FIG. 17 is a cross-sectional view of a state in which a conventional destruction device is mounted on rock.

[Explanation of symbols]

 1 Destruction device 2 Destruction container 3 Destruction liquid 4 Electrode rod 5 Terminal 8 Metal wire 9 Energy supply circuit 10 Power supply device 11 Control circuit 12 Discharge switch 13 Energy storage circuit 15 Terminal block 20a Mounting hole 20c Groove 20d Partition wall C1 Destruction direction H1 Rock bed H2 structure

 ─────────────────────────────────────────────────── ───Continued from the front page (72) Inventor Hiroyuki Carpenter, 3-28 Nishikujo, Konohana-ku, Osaka-shi, Osaka Prefecture Hitachi Shipbuilding Co., Ltd. (72) Tetsuya Inoue, Nishikujo, 5-cho, Osaka, Osaka No. 28 in Hitachi Shipbuilding Co., Ltd.

Claims (5)

[Claims] 1. A pair of electrodes is connected to a capacitor,
The both electrodes are connected to each other through a thin metal wire, and the electric energy previously charged and accumulated in the capacitor is discharged and supplied to the thin metal wire through the electrodes in a short time.
In a destruction apparatus that rapidly melts and evaporates a thin metal wire to destroy an object to be destroyed by its impact force, the electrode and the thin metal wire are immersed in a breaking liquid filled in the breaking container and sealed in the breaking container. Characteristic destruction device. 2. The destruction object according to claim 1, wherein a gel-like substance is filled in the destruction container instead of the destruction liquid, and the electrode and the fine metal wire are immersed in the gel-like substance. Destruction device. 3. The destruction device according to claim 1 or 2 is mounted in a mounting hole formed in the object to be destroyed in advance, and when the object is destroyed, electric energy is discharged from the capacitor to the thin metal wire. A method for destroying an object to be destroyed, which comprises destroying the object to be destroyed by supplying the object. 4. A wedge-shaped groove continuous to the mounting hole is formed in a predetermined direction of the mounting hole formed in the object to be destroyed in a breaking direction.
The method for destroying an object to be destroyed according to claim 3, wherein the object to be destroyed is destroyed. 5. The destruction apparatus according to claim 1 or 2 is mounted in a plurality of mounting holes formed close to each other in an object to be destroyed, and a capacitor is provided when the object to be destroyed is destroyed. A method of destroying an object to be destroyed, which comprises destroying the object to be destroyed by supplying electric energy to a metal fine wire at a timing with a discharge.