JP2002309782A - Breaking method and device of temporary structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a temporary structure breaking method capable of safely and efficiently breaking the temporary structure at a low cost, while restricting the noise and vibration. SOLUTION: The liquid 20 is previously filled in the temporary structure to be broken. Cracks 22 are generated in the temporary structure by the volume expansion force generated when the liquid 20 is frozen, and the cracks 22 are utilized to break the temporary structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for crushing a temporary structure for dismantling and removing a temporary structure such as a construction work, and a crushing apparatus for performing the method.

[0002]

2. Description of the Related Art For example, in a deep pneumatic caisson, a temporary slab is formed at a required interval above a ceiling slab of a work room in order to form a lock chamber or the like at an upper portion of a work room. It has a slab structure.

After excavating the ground to sink the caisson body, the caisson is built, and when the caisson is used, for example, as a starting shaft of a shield machine, a temporary slab, which is a temporary structure, is dismantled and removed.

[0004] As a crushing technique for dismantling a temporary structure such as the above-mentioned temporary slab, there is a conventional blasting method, a mechanical method, a chemical expanding material method, or the like.

[0005]

However, the blasting method is not suitable for crushing temporary structures especially in urban areas.
There are major issues in terms of safety, noise and vibration.

In the mechanical construction method using a breaker or the like from the beginning, since noise and vibration are continuously generated, there is a restriction on the working time zone.

In consideration of the above problems, a chemical expanding material method is employed, but the chemical expanding material method has a low crushing efficiency.
There is a problem that the cost is increased.

The present invention has been made in view of the above circumstances, and has as its object to be able to construct safely, to reduce noise and vibration remarkably, and to improve crushing efficiency.
An object of the present invention is to provide a method for crushing a temporary structure which can be constructed at a low cost.

Another object of the present invention is to provide an apparatus for crushing a temporary structure, which can accurately carry out the method of the present invention.

[0010]

In order to achieve the above object, in the method of the present invention, a liquid is previously filled in a temporary structure to be crushed, and a volume expansion force caused by freezing the liquid is utilized. After a crack is generated in the temporary structure, the temporary structure is crushed using the crack.

In order to achieve the above object, according to the method of the present invention, a liquid is previously filled in a temporary structure to be crushed, and then the liquid is pressurized, and the temporary structure is cracked by the pressure of the liquid. After the cracks are generated, the temporary structures are crushed using the cracks.

In order to achieve the above object, according to the method of the present invention, a jack is previously incorporated into a temporary structure to be crushed, and a crack is generated in the temporary structure by using the force of the jack. The temporary structures are crushed using the cracks.

In order to achieve the above object, in the apparatus of the present invention, a liquid receiving space is previously formed inside a temporary structure to be crushed, and a refrigerant pipe is installed in the liquid receiving space. Is provided with a liquid filling means, and a refrigerant injection / suction means is connected to the refrigerant pipe.

Further, in order to achieve the above object, in the apparatus of the present invention, a liquid receiving space is previously formed inside the temporary structure to be crushed, and the liquid receiving space is filled with the liquid and filled with the liquid. A liquid filling / pressurizing means for pressurizing is connected.

In order to achieve the above object, in the apparatus of the present invention, a jack is previously installed in the temporary structure to be crushed, and this jack is connected to an operation panel which can be operated from the outside of the temporary structure. I have.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings.

FIGS. 1 and 2 show a first embodiment of the present invention. FIG. 1 shows a case where the present invention is applied to the crushing of a temporary slab which is a temporary structure of a double slab of a pneumatic caisson. FIG. 2 is a vertical sectional front view, and FIG.

In the pneumatic caisson shown in these figures, a ceiling slab 2 for securing a working room 3 is constructed below the caisson frame 1.

Above the ceiling slab 2, a temporary slab 4 for securing a lock chamber 5 is constructed.

The caisson frame 1 is provided with a shield launching port 23 at a part of the side wall. In this embodiment, after the caisson is built, the caisson is used as a starting shaft for a shield machine.

The ceiling slab 2 is provided with an opening 24 connecting the working chamber 3 and the lock chamber 5. This opening 2
4 is provided with a hatch (not shown).

The temporary slab 4 is loaded with
A carry-out facility 25 and a worker access facility 28 are erected. The loading / unloading equipment 25 for the equipment includes a material shaft 26 and a material lock 27 provided on an upper portion thereof. The worker access facility 28 includes a man shaft 29 and a man lock 30 provided above the man shaft 29.

The temporary slab 4 is constructed as follows.

First, on the ceiling slab 2, a formwork (not shown) that defines the position where the temporary slab 4 to be constructed is formed is installed.

Next, the main reinforcement 6b, the distribution muscle 7b, the distribution muscle 7a, and the main reinforcement 6a are set on the formwork.

Between the pair of the main bars 6b and the distribution bars 7b and the pair of the distribution bars 7a and the main bars 6a, a liquid receiving space forming mold 8 is set in the axial direction of the main bars 6a and 6b. The liquid receiving space forming mold 8 is provided alone or in plurals depending on the size, structure or crushing size of the temporary slab 4 to be constructed. In this embodiment, a plurality of liquid receiving space forming molds 8 are provided at a required interval from each other.

When a plurality of the liquid receiving space forming molds 8 are provided as in this embodiment, the adjacent liquid receiving space forming molds 8 and 8 are formed with a liquid passage forming smaller in cross-sectional area. It connects with the formwork 9. This liquid passage forming mold 9
Are connected alternately to the end of the liquid receiving space forming mold 8. Therefore, the plurality of liquid receiving space forming molds 8 and adjacent liquid receiving space forming molds 8, 8 are formed.
For forming a liquid passage 9 in which the end portions are alternately connected to each other
Thus, the liquid receiving space 10 which is substantially S-shaped and has a large cross-sectional area at the portion of the liquid receiving space forming mold 8 is formed.

A refrigerant pipe 17 is provided inside the liquid receiving space forming mold 8 and the liquid passage forming mold 9. Therefore, as can be seen from FIG. 2, the refrigerant pipe 17 is arranged in a substantially S-shaped continuous shape from point a, which is one end, to point b, which is the other end.

A series of liquid receiving spaces 1 formed by the liquid receiving space forming mold 8 and the liquid passage forming mold 9.
A liquid pipe 13 of a liquid filling means is inserted at a point c, which is one end of the liquid passage 11 with the zero. The liquid pipe 13 is connected to the liquid supply equipment 12 shown in FIG.
The liquid pipe 13 is provided with a liquid valve 14.

On the other hand, a series of liquid receiving spaces 10 formed by the liquid receiving space forming mold 8 and the liquid passage forming mold 9.
The air vent pipe 15 of the liquid filling means is inserted at point d which is the other end of the liquid passage 11. The air vent pipe 15 is provided with an air vent valve 16.

On the other hand, a refrigerant pipe 19 of refrigerant injection / suction means is connected to a point a, which is one end of the refrigerant pipe 17. This refrigerant pipe 19 is connected to the refrigerator 18 shown in FIG. A refrigerant valve (not shown) is provided in the middle of the refrigerant pipe 19. And the refrigerant pipe 19
The refrigerant 21 is injected into the refrigerant pipe 17 through the
After using 1, the refrigerant 21 is sucked from the refrigerant pipe 17 through the refrigerant pipe 19.

After the rebar arrangement, the mold assembly and the piping are completed as described above, the ready-mixed concrete is poured into a required thickness to construct the temporary slab 4.

The temporary slab 4 constructed as described above has a liquid receiving space forming mold 8 and a liquid passage forming mold 9.
As a result, a liquid receiving space 10 having a large sectional area is formed at the portion of the liquid receiving space forming mold 8 which is substantially S-shaped and continuous.

In the liquid receiving space 10, almost S
A refrigerant pipe 17 continuous in a letter shape is provided.

Further, a liquid pipe 13 connected to the liquid supply equipment 12 and having a liquid valve 14 is inserted at a point c, which is one end of the series of liquid receiving spaces 10, and a point d, which is the other end. Is provided with an air vent pipe 15 having an air vent valve 16, and these members constitute a liquid filling means.

As described above, a refrigerant pipe 19 connected to a refrigerator 18 and having a refrigerant valve (not shown) is connected to a point a, which is one end of the series of refrigerant pipes 17. A member for injecting / suctioning refrigerant is constituted by the above member.

When the temporary slab 4 is to be crushed after the completion of this work, the following procedure is performed.

First, a liquid receiving space 10 formed in the temporary slab 4 is supplied from the ground through a liquid supply facility 12, a liquid pipe 13, and a liquid valve 14 of a liquid filling means.
The liquid 20 is injected into the inside. At this time, the air release valve 16 of the liquid filling means is opened, and the air staying in the liquid receiving space 10 is extracted through the air release pipe 15. Thus, the liquid 20 is filled in the liquid receiving space 10.

When the liquid 20 is filled in the liquid receiving space 10, the liquid valve 14 and the air bleeding valve 16 are closed to prevent the liquid 20 in the liquid receiving space 10 from decreasing.

The liquid 20 may be filled before the temporary slab 4 is constructed.

The refrigerant pipe 17 installed in the liquid receiving space 10 is filled with a refrigerant 21 through a refrigerant pipe 19 and a refrigerant valve.

Next, the refrigerant 21 is cooled by the refrigerator 18, and the liquid 20 in the liquid receiving space 10 is frozen. As the liquid 20, for example, water is used, and when it is frozen, its volume becomes 9
It expands about%. Due to the volume expansion force of the frozen liquid 20, a crack 22 is generated in the temporary slab 4 at the location of the liquid receiving space 10 having a large sectional area as shown in FIG.

After the cracks 22 occur in the temporary slab 4, the refrigerant 21 in the refrigerant pipe 17 is sucked through the refrigerant pipe 19 and collected in a refrigerant container (not shown).

Then, the temporary slab 4 having the crack 22
Is then crushed using a breaker or the like, dismantled and removed.

In this embodiment, after the temporary slab 4 is dismantled and removed, the ground of the ground where the shield machine (not shown) is started is improved, and the shield start port 23 is dismantled. Next, a shield machine is installed at the shield start port 23, the shield machine is started, and a tunnel is constructed.

According to the first embodiment described above, the liquid receiving space 1 formed inside the temporary slab 4 to be crushed
0 is filled with a liquid 20, and a refrigerant 21 is injected into a refrigerant pipe 17 installed in the liquid receiving space 10, the refrigerant 21 is cooled by a refrigerator 18, and the liquid 20 is frozen by the refrigerant 21, Cracks 22 are generated in the temporary slab 4 using the volume expansion force caused by freezing the liquid 20, and the temporary slab 4 is crushed using the cracks 22, so that the construction can be performed safely and the noise can be reduced. -Vibration can be suppressed, crushing efficiency can be improved, and costs can be reduced.

Next, FIGS. 3 and 4 show Embodiment 2 of the present invention.
FIG. 3 is a vertical sectional front view of a temporary slab which is a temporary structure, and FIG. 4 is a perspective view showing a main part.

In the second embodiment shown in these figures, the construction of the temporary slab 4 is performed as follows.

That is, on the ceiling slab 2 of the work room 3, a formwork (not shown) for defining the formation position of the temporary slab 4 to be constructed is installed.

On the form, a main bar 6b, a distribution bar 7b,
The distribution bars 7a and the main bars 6a are installed.

Between the pair of the main bars 6b and the main bars 7b and the pair of the main bars 7a and the main bars 6a, the liquid receiving space forming mold 31 is set in the axial direction of the main bars 6a and 6b. The liquid receiving space forming mold 31 is provided alone or in plurals depending on the size, structure, or size of the temporary slab 4 to be constructed. In this embodiment, a liquid receiving space forming mold 3 is formed.
1 are arranged in parallel at a required interval from each other.

A liquid feed pipe 36 of a liquid filling / pressurizing means is inserted at one end of each mold 31 for forming a liquid receiving space, and an air vent pipe 37 is inserted at the other end. Each liquid feed pipe 36 is connected to a pressure pump 33 installed on the ground via a liquid valve 35 and a liquid pipe 34. Each air release pipe 37 is provided with an air release valve 38.

After the arrangement of the reinforcing bars, the mold assembly, and the piping as described above, the ready-mixed concrete is poured into a required thickness to construct the temporary slab 4.

The temporary slab 4 constructed as described above includes
The plurality of liquid receiving space forming molds 31 form a plurality of liquid receiving spaces 32 in parallel at a required interval from each other.

At one end of each liquid receiving space 32, a liquid feed pipe 36 of a liquid filling / pressurizing means is inserted, and this liquid feed pipe 36 is connected to a pressure valve via a liquid valve 35 and a liquid pipe 34. It is connected to a pump 33. At the other end of each liquid receiving space 32, an air vent pipe 37 of a liquid filling / pressurizing means is inserted, and the air vent pipe 37 is provided with an air vent valve 38.

Therefore, when the temporary slab 4 is crushed after the completion of this work, the liquid is introduced into the liquid receiving space 32 from the pressure pump 33 installed on the ground through the liquid pipe 34, the liquid valve 35 and the liquid feed pipe 36. Fill 39. At this time, the air release valve 38 is opened and the air release pipe 37 is opened.
The air in the liquid receiving space 32 is extracted through. Thus, the liquid 39 is filled in each liquid receiving space 32.

When each of the liquid receiving spaces 32 is filled with the liquid 39, the air vent valve 38 is closed. Subsequently, the liquid 39 in the liquid receiving space 32 is pressurized by the pressure pump 33.

As described above, the liquid 3 in the liquid receiving space 32
When the pressure of 9 is increased, a crack 40 is generated in the temporary slab 4 due to the pressure of the liquid 39. Therefore, the temporary slab 4 is crushed using the crack 40.

According to the second embodiment described above, the liquid 39 is filled in the liquid receiving space 32 formed inside the temporary slab 4 to be crushed, and the liquid 39 is filled with the pressure pump of the liquid filling and pressurizing means. 33, the temporary slab 4 is cracked by the pressure of the liquid 39, and the temporary slab 4 is crushed using the crack 40. In addition, the generation of noise and vibration can be suppressed, the crushing efficiency can be improved, and the cost can be reduced.

In the second embodiment, when a plurality of the liquid receiving spaces 32 are formed, the adjacent liquid receiving spaces 3 are formed.
2 and 32 are connected by a liquid passage, and a liquid feed pipe 36 is inserted into one end of a series of liquid receiving spaces 32. The liquid feed pipe 36 is connected to a pressure pump 33 through a liquid valve 35 and a liquid pipe 34.
To the other end of the series of liquid receiving spaces 32,
An air bleeding pipe 37 having an air bleeding valve 38 is inserted thereinto, air is extracted from one place of the series of liquid receiving spaces 32, and the liquid 39 is filled and pressurized from one place of the series of liquid receiving spaces 32. Is also good.

Other configurations and operations of the second embodiment are the same as those of the first embodiment.

FIGS. 5 and 6 show a third embodiment of the present invention. FIG. 5 is a longitudinal sectional front view, and FIG. 6 is an enlarged perspective view of a main part.

In the third embodiment shown in these figures, the construction of the temporary slab 4 is performed as follows.

That is, on the ceiling slab 2 of the work room 3, a formwork (not shown) for defining the formation position of the temporary slab 4 to be constructed is installed.

The main bars 6b, the distribution bars 7b,
The distribution bars 7a and the main bars 6a are installed.

A jack space forming form 41 is provided between the pair of the main bars 6b and the main bars 6b and the pair of the main bars 7a and the main bars 6a to secure the jack space 42.
The jack space forming mold 41 is provided with the temporary slab 4.
Depending on the size, structure, or size of crushing, incorporate one or more. In this embodiment, a plurality of parts are assembled at a required interval from each other.

In each jack space 42 secured by the jack space forming mold 41, the rod 4
The jack 43 is installed with the 4a and 44b contracted.
Then, the receiving fitting 47 is sandwiched between the rods 44a and 44b of the jack 43 and the reinforcing steel of the temporary slab 4 to be constructed so that no gap is formed, and the jack 43 is fixed.

In this embodiment, the jack 43 is of a hydraulic drive type. Each jack 43 is provided with a hydraulic pipe 46, and the hydraulic pipe 46 is set so as to be connectable to an operation panel 45 installed on the ground.

As described above, after the arrangement of the reinforcing bars, the mold assembly, and the installation of the equipment, the ready-mixed concrete is poured into a required thickness to construct the temporary slab 4.

The temporary slab 4 constructed as described above includes:
The jacks 43 are assembled in a plurality of jack spaces 42 secured at required intervals with the rods 44a and 44b contracted. And
Each jack 43 is connected to an operation panel 45 installed on the ground through a hydraulic pipe 46 when used.

When the temporary slab 4 is to be crushed after the completion of this work, hydraulic pressure is supplied to each jack 43 through a hydraulic pipe 46 from an operation panel 45 installed on the ground.
The rods 44a and 44b are extended.

As described above, the rod 44 of the jack 43
When a and 44b are extended, opposing forces are applied to the pair of the main reinforcing bars 6a and the main reinforcing bars 6a and the pair of the main reinforcing bars 6b and the main reinforcing bars 7b, and a crack 48 is generated in the temporary slab 4. Therefore, the temporary slab 4 is crushed using the crack 48.

According to the third embodiment described above, the jack space 42 is secured inside the temporary slab 4 to be crushed, and the rods 44a, 4a are provided in the jack space 42.
When the temporary slab 4 is crushed, a hydraulic pressure is supplied to the jack 43 through a hydraulic pipe 46 from the operation panel 45 installed on the ground, and the rod of the jack 43 is moved by the hydraulic pressure. 44a and 44b are extended to generate a crack 48 in the temporary slab 4 and the crack 48
Since the temporary slab 4 is crushed using the method described above, in the third embodiment as well, the construction can be carried out safely, noise and vibration can be suppressed, the crushing efficiency can be improved, and the cost can be reduced. Can also be planned.

In the third embodiment, the jack 4
3 is not limited to a hydraulic drive type, but may be a pneumatic drive type or an electric drive type.

In the third embodiment, the double-acting jack 43 in which the rods 44a and 44b extend and contract is used on both sides of the jack 43 in the axial direction, but may be a single-acting jack.

Further, in the case where a plurality of jacks 43 are installed, the present invention is not limited to the illustrated embodiment in which the receiving fitting 47 is independently mounted on the rod 44 of the jack 43, and a steel material is attached over the plurality of jacks 43 rods. The steel material may be pressed against the temporary slab 4 to generate a crack.

Other structures and operations of the third embodiment are the same as those of the first embodiment.

FIG. 7 is a cross-sectional plan view showing a fourth embodiment of the present invention.

The fourth embodiment shown in FIG. 7 is configured by combining the first and third embodiments.

That is, in the temporary slab 4 which is a temporary structure to be crushed, the liquid receiving space 10 and the liquid passage forming die 9 which are formed in the temporary receiving slab 4 are substantially S-shaped. Are formed.

In the liquid receiving space 10, a refrigerant pipe 17 which is substantially S-shaped and continuous is provided. This refrigerant pipe 17 is connected to liquid filling means. The configuration of the liquid filling means is the same as that of the first embodiment.

Further, as a suitable place inside the temporary slab 4, in the fourth embodiment, the jack space is formed by the jack space forming frame 41 near both ends in the longitudinal direction between the adjacent large liquid receiving spaces 10, 10. A space 42 is secured.

Each jack space 42 has a jack 43 provided with a rod 44 in a vertical direction. Each jack 43 is connected to an operation panel installed on the ground, as in the third embodiment.

In the fourth embodiment, when the temporary slab 4 is crushed, the liquid 20 is filled in the liquid receiving space 10, the refrigerant 21 is filled in the refrigerant pipe 17, and the liquid 20 is frozen by the refrigerant 21. Inflate.

Simultaneously or after expanding the volume of the liquid 20 by freezing, the rod 44 of the jack 43 is extended and the temporary slab 4 is pushed open from the inside thereof to generate a crack 49 in the temporary slab 4. Let it.

As described above, in the fourth embodiment, the liquid 20
Due to the synergistic action of the volume expansion force caused by the freezing and the pushing-open force of the jack 43, the cracks 49 can be more accurately generated in the temporary slab 4.

Other structures and operations of the fourth embodiment are the same as those of the first and third embodiments.

In the present invention, the above-described embodiments may be combined as follows. (1) A combination of the liquid pressurization shown in the second embodiment and the use of the jack shown in the third embodiment. (2) A combination of the liquid freezing shown in the first embodiment, the liquid pressurization shown in the second embodiment, and the use of the jack shown in the third embodiment.

Thus, according to the embodiments (1) and (2), cracks can be generated in the temporary slab 4 more accurately.

Further, the present invention can be applied not only to the case where the temporary slab 4 of the pneumatic caisson is crushed but also to the temporary structure in general.

[0091]

As described above, according to the method of the present invention, a liquid is previously filled in a temporary structure to be crushed, and the temporary structure is cracked by utilizing a volume expansion force caused by freezing the liquid. After the cracks are generated, the temporary structure is crushed using the cracks, so it can be constructed safely, noise and vibration can be suppressed extremely small, and crushing efficiency is good and construction is inexpensive There is an effect that can be done.

In the method of the present invention, a liquid is previously filled in the temporary structure to be crushed, the liquid is pressurized, and the temporary structure is cracked by the pressure of the liquid. Since the temporary structure is crushed by utilizing the method, the present invention can also be carried out safely, and the noise and vibration can be suppressed extremely small, and the crushing efficiency is good and the effect that it can be constructed at a low cost There is.

According to the method of the present invention, a jack is previously incorporated into a temporary structure to be crushed, and a crack is generated in the temporary structure using the force of the jack.
Since the temporary structure is crushed by utilizing the cracks, the present invention can be carried out safely, and noise and vibration can be suppressed extremely small. There is an effect to get.

In the apparatus of the present invention, a liquid receiving space is previously formed inside the temporary structure to be crushed, a refrigerant pipe is installed in the liquid receiving space, and a liquid filling means is provided in the liquid receiving space. Since the refrigerant pipe is connected to the refrigerant injection / suction means, there is an effect that the method of the present invention can be accurately performed.

Further, in the apparatus of the present invention, a liquid receiving space is previously formed in the temporary structure to be crushed, and the liquid receiving space is filled with a liquid and the filled liquid is pressurized. Since the means are connected, the present invention has an effect that the above-described method of the present invention can be carried out accurately.

In the device of the present invention, a jack is previously incorporated into the temporary structure to be crushed, and this jack is connected to an operation panel operable from outside the temporary structure. Thus, there is an effect that the method of the present invention can be accurately performed.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view showing a first embodiment of the present invention.

FIG. 2 is a cross-sectional plan view taken along line AA of FIG.

FIG. 3 is a vertical sectional front view showing a second embodiment of the present invention.

FIG. 4 is a perspective view showing a main part of the second embodiment.

FIG. 5 is a vertical sectional front view showing a third embodiment of the present invention.

FIG. 6 is an enlarged perspective view of a main part of the third embodiment.

FIG. 7 is a cross-sectional plan view showing Embodiment 4 of the present invention.

[Explanation of symbols]

 Reference Signs List 4 Temporary slab as a temporary structure 8 Liquid receiving space forming mold 9 Liquid passage forming mold 10 Liquid receiving space 11 Liquid passage 12 Liquid supply equipment constituting liquid filling means 13 Same liquid pipe 14 Same liquid Valve 15 Same air vent pipe 16 Same air vent valve 17 Refrigerant pipe 18 Refrigerator 19 Refrigerant pipe 20 Liquid 21 Refrigerant 22 Crack 31 Liquid receiving space forming mold 32 Liquid receiving space 33 Liquid filling / pressurizing means Pressure pump 34 also liquid pipe 35 also liquid valve 36 also liquid feed pipe 37 also air vent pipe 38 also air vent valve 39 liquid 40 crack 41 jack space forming formwork 42 jack space 43 jack 40,44a, 44b jack Rod 45 Operation panel 46 Hydraulic tube 48, 49 Crack

Continued on the front page F term (reference) 2E176 AA01 DD35 DD37 DD54 4D063 AA16 GA10 4D067 CC00 CG00 GA20

Claims (6)

[Claims] Claims: 1. A temporary structure to be crushed is filled with a liquid in advance, and a crack is generated in the temporary structure using a volume expansion force caused by freezing the liquid.
A method for crushing a temporary structure, wherein the temporary structure is crushed using the crack. 2. A temporary structure to be crushed is filled with a liquid in advance, the liquid is pressurized, and a crack is generated in the temporary structure by the pressure of the liquid. A method for crushing a temporary structure, comprising crushing the temporary structure. 3. A jack is previously incorporated into a temporary structure to be crushed, and a crack is generated in the temporary structure by using the force of the jack. Then, the temporary structure is crushed by using the crack. A method of crushing a temporary structure, characterized in that it is performed. 4. A liquid receiving space is formed in advance in a temporary structure to be crushed, a refrigerant pipe is installed in the liquid receiving space, and a liquid filling means is provided in the liquid receiving space. An apparatus for crushing a temporary structure, wherein refrigerant injection / suction means is connected to the pipe. 5. A liquid receiving space is previously formed in a temporary structure to be crushed, and a liquid filling / pressurizing means for filling the liquid and pressurizing the filled liquid is connected to the liquid receiving space. An apparatus for crushing a temporary structure. 6. An apparatus for crushing a temporary structure, wherein a jack is previously installed in a temporary structure to be crushed, and the jack is connected to an operation panel operable from outside the temporary structure.