JPH10331442A - Destruction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the destruction of a destroy article because pressure at a time when the volume of a metallic small-gage wire and a substance for destruction is expanded is dispersed only by singly placing a destruction rope along the surface of the destroy article, pressure does not work to the destroy article efficiently and the destroy article can not be ruptured sufficiently. SOLUTION: A triangular sectional mounting grove 9 is formed to a destroy article 8, and a destruction rope 2 is installed into the mounting groove 9 and pushed by a hold-down jig 10. A metallic small-gage wire 4 is supplied with a fixed quantity of electric energy in a short time, the volume of the metallic small-gage wire 4 and a destroy substance 7 is expanded, and these expansion force is transmitted to the inclined planes 11 of the mounting groove 9, thus efficiently transmitting expansion force to the destroy article 8, then surely fracturing the destroy article 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for destroying an object to be destroyed such as a concrete structure or a bedrock using electric energy.

[0002]

2. Description of the Related Art Conventionally, there is a destruction device 31 for destroying a destructible object 30 such as a concrete structure or a bedrock using electric energy as shown in FIG. The destruction device 31 includes a destruction probe 33 mounted in a mounting hole 32 formed in the object to be destroyed 30, and an electric energy supply circuit 35 for supplying electric energy to a thin metal wire 34 of the destruction probe 33. I have.

[0003] A destruction probe 33 connects a tip of a pair of electrodes 37 to a destruction container 36 inserted into the mounting hole 32 in the depth direction, and is immersed in a destruction substance 38 filled in the destruction container 36. And the thin metal wire.

[0004] A destruction method for destroying the object to be destroyed 30 by using the destruction device 31 having the above-described structure is as follows. The energy supply circuit 35 is connected to the electrode 37, and the electric energy charged and accumulated in the capacitor 40 from the power supply device 39 via the charge control unit 41 is discharged and supplied to the thin metal wire 39 in a short time.

[0005] Then, the thin metal wire 34 rapidly melts and evaporates and expands in volume, whereby the destructive substance 38 expands in volume rapidly, and the expanding force at that time destroys the object 30 to be destroyed or becomes fragile. Or something.

However, in this destruction method, the destruction probe 3
In order to mount 3 on the object 30 to be destroyed, the mounting holes 32 must be formed, and the operation of forming the mounting holes 32 is troublesome. In particular, as shown in FIG. If this is the case, the entire destructive operation requires a lot of time.

[0007]

Therefore, as shown in FIGS. 11 and 12, a destruction probe 33 is mounted along the surface of the object 30 to be used without forming a destruction hole 32. Can be considered. However, simply placing the destruction probe 33 along the surface of the destructible object 30 disperses the pressure (indicated by an arrow) when the thin metal wires 34 and the destructive substance 38 expand in volume, and the Thing 3
The pressure does not work efficiently with respect to 0, and the object 30 cannot be sufficiently destroyed.

Therefore, an object of the present invention is to provide a destruction method capable of solving the above-mentioned problems.

[0009]

Means for solving the problems of the present invention are as follows. A thin metal wire connected to a power supply is sealed in a destruction container filled with a destruction substance for pressure transmission, and the destruction container is destroyed. In a state in which the destruction container is mounted in the mounting groove formed so as to be arranged along the surface of the object, and the destruction container is pressed against the surface of the object to be destroyed by the pressing member, so that the destruction container conforms to the shape of the mounting groove, Electric energy is supplied to the thin metal wire in a short time to melt and evaporate the thin metal wire to rapidly expand the metal wire, and to transmit the expansion pressure of the metal wire with a destruction substance to destroy the object to be broken.

A thin metal wire connected to a power supply is sealed in a destruction container filled with a destruction substance for pressure transmission, and the destruction container is mounted in a mounting groove formed so as to be arranged along the surface of the object to be destroyed. Is mounted, the destruction container is pressed against the surface of the object to be destroyed by the pressing member, and electric energy is supplied to the thin metal wire in a short time, and the thin metal wire is melted and evaporated to rapidly expand, and the thin metal wire is broken down with a destructive substance. This is a destruction method for transmitting an inflation pressure to destroy an object to be destroyed, wherein the destruction container has a shape conforming to the shape of the mounting groove.

Furthermore, the mounting groove is formed in a shape having a corner. According to these problem solving means, the holding member reflects the expansion force of the thin metal wire and the substance for destruction to the surface of the mounting groove of the object to be destroyed, so that efficient destruction work can be performed.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment of the present invention will be described with reference to FIGS. First, a destruction device 1 for performing a destruction method according to the first embodiment of the present invention.
Will be described.

In this destruction device 1, a destruction probe 2 is
A part of the covering member of the insulated cable 3 is cut off to form a thin metal wire 4
Exposure (for example, copper: Cu is used), and a destruction substance (for example, water is used) filled in a heat-shrinkable and stretchable tubular destruction container 6 that covers the thin metal wire 4 including the electrode portion 5. 9), and an electric energy supply circuit 3 having the same configuration as the conventional one shown in FIG.
5 is connected to the electrode part 5.

As shown in FIG. 4, the destruction probe 2 is inserted through the thin metal wire 4 as shown in FIG. 4, and one of the destruction containers 6 is thermally contracted as shown in FIG. The rupture material 7 is injected, and as shown in FIG. 6, the other end of the rupture container 6 is closed by heat shrinking.

Next, a description will be given of a destruction method for destructing a destructible object 8 such as a concrete structure or a bedrock using the destruction device 1. First, as shown in FIG. A mounting groove 9 having a triangular cross section is formed, and the breaking probe 2 is mounted in the mounting groove 9.

Next, as shown in FIG. 2, the destruction probe 2 is pressed against the slope 11 of the mounting groove 9 with a holding jig 10 formed of a material such as metal or ceramic, and the destruction container 6 is inserted into the mounting groove 9. Deform to a shape according to the cross-sectional shape. On the other hand, the electrode portion 5 is connected to the electric energy supply circuit 35 to supply a predetermined amount of electric energy to the thin metal wire 4 in a short time.

Then, the thin metal wire 4 rapidly melts and evaporates and expands in volume, and the destructive substance 7 also expands in volume and scatters. The expanding force is transmitted to the slope 11 of the mounting groove 9 and the object to be destroyed is destroyed. 8 is destroyed.

At this time, the jig 1 for holding down the destruction probe 2
Since the pressing force is applied to the slope 11 of the mounting groove 9 at 0, the expansion force transmitted to the holding jig 10 is reflected on the slope 11 of the object 8 to be broken, and the expansion force tears the corner 12 of the mounting groove 9. And a crack 18 can be generated from the corner 12 of the mounting groove 9.

As described above, according to the first embodiment of the present invention, the mounting groove 9 having a triangular cross section is formed in the object 8 to be broken, and the breaking probe 2 is mounted in the mounting groove 9 and the holding jig 10 is used. Pressing, a predetermined amount of electric energy is supplied to the thin metal wire 4 in a short time to rapidly melt and evaporate the thin metal wire 4 and expand the destructive substance 7, and to apply the expanding force to the slope 11 of the mounting groove 9. Since the transmission is performed, the expansion force can be efficiently transmitted to the destroyed object 8 and the destroyed object 8 can be reliably destroyed.

Further, by forming the corner 12 in the mounting groove 9, the expansion force acts to tear the corner 12 of the mounting groove 9, and a continuous crack 18 is generated in the corner 12 of the mounting groove 9. It is easy to predict the direction of the crack 18, that is, the direction of fracture.

Further, by forming the mounting grooves 9 continuously for the required length, the time required for the destruction work is greatly reduced as compared with the conventional case where a large number of mounting holes are formed. And work becomes easier.

Next, a second embodiment of the present invention will be described with reference to FIG. 7. In this embodiment, a mounting groove 9 having a triangular cross section is formed on the vertical surface of the object 8 to be destroyed. A holding groove 15 having a triangular cross section facing the mounting groove 9 is formed so that the destruction probe 2 is sandwiched between the mounting groove 9 and the holding groove 15, and the thin metal wire 4 and the destructive substance 7 expand from the slope 16 of the holding groove 15. The object 8 is broken by using the reflection of the force to tear the corner 12 of the mounting groove 9.

Also in this destruction method, the expansion force can be efficiently transmitted to the destructible object 8, and the destructible object 8 can be reliably destroyed. Other functions and effects are the same as those of the first embodiment.

Next, a third embodiment of the present invention will be described with reference to FIG. 8. In this embodiment, when the object 8 to be destroyed such as reinforced concrete is destroyed, the surface portion of the concrete is destroyed and the reinforcing bar 17 is formed. A rectangular mounting groove 9 is formed in the object 8 to be exposed.

The mounting groove 9 is formed in a pair at a position where the reinforcing bar 17 is sandwiched and at a position where a predicted crack 18 is directed from the corner 12 of the mounting groove 9 toward the reinforcing bar 17. Then, the breaking probe 2 is mounted in each mounting groove 9, and the breaking container 6 is pressed toward the mounting groove 9 by the holding jig 10 to be deformed.
To supply a predetermined amount of electric energy to the thin metal wire 4 in a short time.

Then, the thin metal wire 4 rapidly melts and evaporates and expands in volume, and the destructive substance 7 also expands in volume and scatters. The expanding force is transmitted to the wall surface 19 of the mounting groove 9, and 8 is destroyed.

At this time, the jig 1
Since the pressure is applied to the mounting groove 9 at 0, the expansion force transmitted to the holding jig 10 is reflected on the wall surface 19 of the object 8 to be broken, and the expansion force tears the two corners 12 of the mounting groove 9. Working,
A crack 18 is formed in a direction connecting the corner 12 of the mounting groove 9 and the reinforcing bar 17.
Is generated, and the surface concrete portion (shown by oblique lines in the figure) of the object 8 is destroyed, and the reinforcing bar 17 can be exposed.

As described above, according to the third embodiment of the present invention, the mounting groove 9 having a rectangular cross section is formed in the object 8 to be destroyed, the destructive probe 2 is mounted in the mounting groove 9, and the holding jig 10 is used. Pressing, a predetermined amount of electric energy is supplied to the thin metal wire 4 in a short time, and the thin metal wire 4 and the destructive substance 7 are expanded in volume;
Since the inflation force is transmitted to the wall surface 19 of the mounting groove 9, the inflation force can be efficiently transmitted to the destructible object 8, and the destructible object 8 can be reliably destroyed.

Since the direction of the crack 18 can be easily predicted by forming the corner portion 12 in the mounting groove 9, the reinforcing groove 17 is reliably exposed by forming the mounting groove 9 in accordance with the position of the reinforcing bar 17. Can be done.

In each of the above embodiments, the destruction container 6 is deformed by mounting the destruction probe 2 in the mounting groove 9 and pressing with the holding jig 10. However, the invention is not limited to this. Instead, the destruction container 6 is formed in advance in a sectional shape corresponding to the sectional shape of the mounting groove 9 to be formed,
This may be mounted in the mounting groove 9 to break the object 8 to be destroyed.

In this case, as in the above embodiments,
The expansion force at the time of volume expansion of the thin metal wire 4 and the destructive substance 7 can be efficiently transmitted to the destructible object 8, and the destructible object 8 can be surely destroyed, and the direction of the crack 18, that is, the destruction direction can be easily predicted. By forming the mounting grooves 9 continuously for a required length, the time required for the destruction work can be greatly reduced and the work can be facilitated as compared with the related art.

[0032]

As is apparent from the above description, according to the present invention, a destruction probe having a destruction container enclosing a thin metal wire and a destruction substance is mounted in a mounting groove formed on the surface of an object to be destroyed, and the destruction probe is mounted. The pressing member is pressed against the surface of the object to be destroyed, and electric energy is supplied to the thin metal wire to melt and evaporate the thin metal wire to rapidly expand the volume and expand the destructive substance, so that the expanding force at that time is reflected by the pressing member. As a result, the expansion force at the time of volume expansion of the thin metal wire and the destruction substance can be efficiently transmitted to the destruction object, and this can be reliably destroyed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state in which a crack has occurred after breaking by a breaking method according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state in which the breaking probe mounted in the mounting groove is deformed by pressing with a holding jig.

FIG. 3 is a cross-sectional view showing a state in which a breaking probe is mounted in a mounting groove.

FIG. 4 is a cross-sectional view showing a state in which a thin metal wire is inserted into a breaking container.

FIG. 5 is a cross-sectional view showing a state in which one of the breaking containers is thermally shrunk and filled with a breaking substance.

FIG. 6 is a cross-sectional view of a state where both sides of the destruction container are thermally contracted.

FIG. 7 is a cross-sectional view showing a state in which a crack has occurred after breaking by a breaking method according to a second embodiment of the present invention.

FIG. 8 is a cross-sectional view showing a state in which a crack has occurred after breaking by a breaking method according to a third embodiment of the present invention.

FIG. 9 is a diagram showing a configuration of a breaking device in a conventional example.

FIG. 10 is a view for explaining a conventional destruction method.

FIG. 11 is a view for explaining a modification of the breaking method in the conventional example.

FIG. 12 is a diagram illustrating a modification of the breaking method in the conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Destruction apparatus 2 Destruction probe 4 Thin metal wire 6 Destruction container 7 Destruction substance 8 Destructible object 9 Mounting groove 10 Holding jig 11 Slope of mounting groove 12 Corner of mounting groove 18 Crack

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hironari Arai 5-28 Nishikujo, Konohana-ku, Osaka-shi, Osaka Within Hitachi Zosen Corporation (72) Inventor Tsuyoshi Kato 5-chome, Nishikujo, Konohana-ku, Osaka-shi, Osaka No. 3 28 Inside Hitachi Zosen Corporation

Claims (3)

[Claims] A metal wire connected to a power supply is enclosed in a destruction container filled with a destruction substance for pressure transmission, and the destruction container is disposed in a mounting groove formed so as to be arranged along the surface of the object to be destroyed. In a state where the destruction container is made to follow the shape of the mounting groove by pressing the destruction container against the surface of the object to be destroyed with the holding member, electric energy is supplied to the fine metal wire in a short time to melt the fine metal wire. A destruction method characterized by evaporating and rapidly expanding and transmitting an expansion pressure of a thin metal wire with a destruction substance to destroy an object to be destroyed. 2. A destruction container in which a thin metal wire connected to a power supply is sealed in a destruction container filled with a destruction substance for pressure transmission, and the destruction container is disposed in a mounting groove formed so as to be arranged along the surface of the object to be destroyed. Is mounted, the destruction container is pressed against the surface of the object to be destroyed by the pressing member, and electric energy is supplied to the thin metal wire in a short time, and the thin metal wire is melted and evaporated to rapidly expand, and the thin metal wire is broken down with a destructive substance. A destruction method for transmitting an expansion pressure to destroy an object to be destroyed, wherein the destruction container has a shape conforming to the shape of a mounting groove. 3. The breaking method according to claim 1, wherein the mounting groove is formed in a shape having a corner.