JP3300862B2 - Disposal and storage methods and storage for buildings such as nuclear reactors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a storage for cutting off an activated part including a nuclear reactor from other parts, and disposing and storing a building such as a nuclear reactor comprising the activated part. It is about.

[0002]

2. Description of the Related Art Generally, buildings such as nuclear reactors are erected on the ground surface. Buildings such as nuclear reactors are discarded and stored in a storage provided underground in order to prevent environmental pollution when disposing of them. When storing a building in this storage, disassemble the building of this reactor etc.
Dismantled, separate the activated part from other parts,
After sealing in the storage container, store it in the building.

[0003]

However, when disposing and storing a building such as a nuclear reactor in a storage, the building must be disassembled and dismantled to separate the activated portion. A disassembly operation and a separation operation are required, and these operations are complicated. When a building such as a nuclear reactor is to be disposed of and stored in a lump, a concrete slab is installed on the bottom and the peripheral wall of the storage underground. It is necessary to suspend the furnace and other buildings. For this reason, when a building such as a nuclear reactor is large, it is difficult to suspend the building.

[0004] The present invention effectively solves the above-mentioned problems, and it is possible to collectively dispose and store a building such as a nuclear reactor in the ground, and improve the workability of storing the building such as a nuclear reactor. The purpose of the present invention is to provide a disposal and storage method and a storage room for buildings.

[0005]

According to a first aspect of the present invention, there is provided a method for disposing and storing a building such as a nuclear reactor, wherein the activated part including the nuclear reactor is cut off from the other part and the activated part is separated from the activated part. This is a method of collectively disposing and storing buildings such as nuclear reactors .
Each has a working room surrounded by a cutting edge and an internal basement.
A cradle is provided, and a building such as a nuclear reactor is moved on the cradle by a traction device, and the cradle is excavated in the ground.
Together to sink into Luo predetermined depth, said peripheral wall in the ground
It is characterized in that a building such as a nuclear reactor is moved underground by providing it on the upper part of the outer periphery of the cradle, and a lid is provided on the upper part of the building.

A method for disposing and storing a building such as a nuclear reactor according to claim 2 is a method for disposing and storing a building such as a nuclear reactor according to claim 1, wherein a receiving stand is provided on the ground surface in advance, and The work room of the cradle is filled with foam mortar, and the building such as a nuclear reactor is moved to the cradle, and then excavated.
Sometimes the foam mortar is removed to form a working room space,
It is characterized by digging using a work room space .

According to a third aspect of the present invention, there is provided a method for disposing and storing a building such as a nuclear reactor, wherein the activated part including the nuclear reactor is cut off from other parts, and the building such as a nuclear reactor comprising the activated part is formed. This is a method of collectively discarding and storing the blades.
A pedestal having an operating room and an inner basement is provided, and a peripheral wall is provided underground surrounding the pedestal, and a building such as a nuclear reactor is moved on the pedestal by a traction device,
The building is moved into the ground by excavating the ground to a predetermined depth while excavating the ground, and a lid is provided on the upper part of the building.

According to a fourth aspect of the present invention, there is provided a method of disposing and storing a building such as a nuclear reactor according to the third aspect of the present invention. The work room of the cradle is filled with foam mortar, and the building such as a nuclear reactor is moved to the cradle.
Remove the foam mortar to form a work room space.
It is characterized by excavating in the space of the work room .

The storage of a building such as a nuclear reactor according to claim 5 is a method for disposing and storing a building such as a nuclear reactor according to claim 1.
And a storage for collectively storing a building such as a nuclear reactor including the nuclear reactor and the activated part including the nuclear reactor being cut off from the other part. Blade that supports the lower part of the building
Mouth, a pedestal having an internal basement, a peripheral wall provided on the upper periphery of the cradle so as to surround the building, and a lid covering the upper part of the building, the peripheral wall and the cradle There is characterized in that the thus provided in the ground.

[0010]

In the method for disposing and storing a building such as a nuclear reactor according to the first aspect, a cradle is provided on the ground surface in advance, and the building such as a nuclear reactor is moved on the cradle by a traction device.
Buildings such as nuclear reactors are moved collectively. Thereafter, the cradle is lowered to a predetermined depth, and a peripheral wall is provided in the ground to move a building such as a nuclear reactor into the ground, so that the building such as the nuclear reactor is sunk along with the cradle. You. At this time, the surrounding wall is constructed. Then, since the lid is provided on the upper part of the building such as the nuclear reactor, the building such as the nuclear reactor is collectively discarded and stored in the storage.

According to a second aspect of the present invention, there is provided a method of disposing and storing a building such as a nuclear reactor, which has the function of the first aspect, further comprises providing a pedestal on the ground surface in advance, and filling the lower part of the pedestal with foam mortar. Therefore, when a building such as a nuclear reactor is moved onto a pedestal, an unbalanced load applied to the pedestal is suppressed.

In the method for disposing and storing a building such as a nuclear reactor according to the third aspect, a pedestal is provided on the ground surface in advance, and a peripheral wall is provided in the ground surrounding the pedestal. The earth pressure applied to the storage is supported. Then, the building such as the nuclear reactor is moved on the cradle by the traction device, and the cradle is lowered to a predetermined depth, thereby moving the building such as the nuclear reactor underground, and a lid is provided on the upper part of the building. Since the part is provided, the earth pressure applied to the cradle is supported by the peripheral wall, and the building such as the nuclear reactor is collectively discarded and stored in the storage.

According to a fourth aspect of the present invention, there is provided a method of disposing and storing a building such as a nuclear reactor, which has the function of the third aspect, further comprises providing a pedestal on the ground surface in advance, and filling a lower portion of the pedestal with foam mortar. Therefore, when the building such as the nuclear reactor is moved onto the pedestal, the unbalanced load applied to the pedestal is prevented.

[0014] In the storage of a building of a nuclear reactor or the like according to claim 5, since the building of the nuclear reactor or the like is collectively discarded and stored in the storage, there is no need to disassemble and disassemble the building of the nuclear reactor and the like. Is done. In the storage, a pedestal that supports the lower part of the building such as a nuclear reactor and a peripheral wall surrounding the periphery of the building such as the nuclear reactor are provided in the ground, and the upper part of the building such as the nuclear reactor is covered with a lid. Therefore, buildings such as nuclear reactors are disposed and stored underground. Since the cradle has a basement, the ground below the cradle is excavated in the basement.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing an embodiment of a method for disposing and storing a building such as a nuclear reactor according to the present invention; FIG. As shown in FIG. 1, reference numeral 1 denotes a storage of a building such as a nuclear reactor, and the storage 1 stores a building 2 such as a nuclear reactor in the ground in a lump. The pedestal 3 includes a receiving stand 3 that supports a lower portion of the building 2, a peripheral wall 4 that surrounds the periphery of the building 2, and a lid 5 that covers an upper portion of the building 2.

In the storage 1, the cradle 3, the peripheral wall 4, the lid 5
Is made of a structure such as concrete,
Are provided in the ground, and the lid 5 is provided on the ground surface.
That is, one end of the peripheral wall 4 is connected to an upper peripheral portion of the cradle 3, and the other end of the peripheral wall 4 is connected to a lower peripheral portion of the lid portion 5. In addition, a building 2 such as a nuclear reactor is sealed.

The cradle 3 is made of a so-called caisson foundation, and is composed of a circular or square reinforced concrete box having an open bottom, and a concrete bottom slab covering the bottom of the box. A plurality of basements 7 are formed by these boxes and the bottom plate. The cradle 3
A cutting edge 8 is formed at a lower portion of the base along the outer periphery of the receiving base 3.

Next, a method of disposing and storing a building such as a nuclear reactor will be described with reference to FIGS. FIG.
As shown in the figure, the cradle 3 manufactured in advance on site or in a factory or the like is provided on the ground surface where the storage 1 is to be installed, and a work chamber 9 surrounded by a blade 8 is provided below the cradle 3. Keep it. At this time, the working room 9 is filled with the foam mortar by the ground strength of the installation place of the storage 1 and the upper surface of the cradle 3 and the ground surface are arranged on the same surface. On the other hand, the activated part including the nuclear reactor is cut off from the other part, and the building 2 such as the nuclear reactor, etc., composed of the activated part is separated from the other part. And FIG.
As shown in FIG. 1, a traction device 10 such as a hydraulic jack is installed on the ground surface near the cradle 3 and the building 2 is
Put on. The truck 12 and the traction device 10 are connected by a traction member 11 such as a wire or a step rod. The traction member 11 is disposed at a position crossing the cradle 3. The building 2 is moved onto the receiving stand 3 by winding the towing member 11 by the towing device 10, and the building 2 is placed on the receiving stand 3.

Thereafter, the foamed mortar is taken out of the work room 9 to form a work room space, and the ground below the cradle 3 is excavated in the work room 9 space as shown in FIG. At this time, the surrounding wall 4 made of concrete or the like is constructed around the excavation hole 15 excavated in the work room 9. Here, the building 2 such as a nuclear reactor sinks together with the cradle 3. Then, when the cradle 3 reaches a predetermined depth, as shown in FIG.
The work room 9 is buried, and the lid 5 is placed on the upper end surface of the peripheral wall 4.
Buildings 2 such as nuclear reactors are collectively disposed and stored in an underground storage 1.

According to such a method of disposing and storing a building such as a nuclear reactor, the cradle 3 is provided in advance on the ground surface, and the working chamber 9 below the cradle 3 is filled with foam mortar. In addition, the building 2 such as a nuclear reactor can be moved onto the cradle 3 without lifting, and the unbalanced load applied to the cradle 3 can be suppressed. Therefore, the supporting force of the pedestal 3 can be increased, and the pedestal 3 can evenly support the building 2 such as a nuclear reactor, and thus can reliably support the building 2 such as a nuclear reactor. Then, since the traction device 10 is operated to move the building 2 such as the nuclear reactor on the cradle 3, the building 2 such as the nuclear reactor can be moved collectively, and the disassembling and dismantling work of the building such as the nuclear reactor is unnecessary. In addition, the workability of moving a building such as a nuclear reactor can be improved, and the safety in this work can be improved.

Thereafter, the foamed mortar is taken out, and the ground is excavated in the work room 9 to lower the building 2 such as a nuclear reactor and the cradle 3 to a predetermined depth in the ground, and to bury the peripheral wall 4 in the ground. Is provided, so that the building 2 such as a nuclear reactor
And the surrounding wall 4 can be constructed underground. For this reason, since the work of hanging down the building 2 such as a nuclear reactor can be unnecessary, even in a building 2 such as a large nuclear reactor,
Since it can be safely moved underground and the surrounding wall 4 is constructed when the cradle 3 is lowered, the period required for disposing and storing the building 2 can be reduced. Further, since the lid 5 is provided above the building 2 such as a nuclear reactor, the storage 1 can be constructed when the building 2 such as a nuclear reactor is stored, so that the period required for disposing and storing the building 2 can be shortened.

On the other hand, according to the storage 1 of a building such as a nuclear reactor, the lower part of the building 2 such as a nuclear reactor is supported by the pedestal 3, and the periphery of the building 2 such as the nuclear reactor is covered by the peripheral wall 4, Since the upper part of the building 2 such as a reactor is covered with the lid portion 5 and the peripheral wall 4 and the cradle 3 are provided in the ground, the building 2 such as the nuclear reactor is collectively stored in the underground storage 1. Disassembly of buildings 2 such as reactors
Dismantling work is not required. Therefore, the workability of disposing and storing the building 2 can be improved, the expansion of environmental pollution can be prevented, and the exposure can be reduced. Can be improved. Since the cradle 3 has a basement 7,
The caisson method can be applied since the work room 9 below the cradle 3 can enter and exit from the basement room 7 and the ground can be excavated in the work room 9. Building 2 such as reactors by this caisson method
Can be sunk down to a predetermined depth, so that the building 2 such as a nuclear reactor can be sunk safely and reliably regardless of its size and weight.

<Other Embodiments> Another embodiment of the method for disposing and storing a building such as a nuclear reactor according to the present invention will be described with reference to FIGS.
This will be described with reference to FIG. As shown in FIG. 5, the cradle 3 is provided in advance on the ground surface where the storage 1 is to be installed, and a work chamber 9 surrounded by the blade 8 is provided below the cradle 3. The work chamber 9 is filled with foam mortar, and the upper surface of the cradle 3 and the ground surface are arranged on the same plane. On the other hand, the underground continuous wall (surrounding wall) 4 surrounding the cradle 9
Is provided. The underground continuous wall 4 is formed in a cylindrical shape or a polygonal column shape, and extends in the vertical direction.

Then, as shown in FIG. 6, the traction device 10 is installed on the ground surface near the cradle 3 and the building 2 such as a nuclear reactor is mounted on the bogie 12. The truck 12 and the traction device 10 are connected by the traction member 11. When the traction member 10 is rolled up by the traction device 10, the building 2 such as a nuclear reactor is moved onto the receiving stand 3, and the building 2 is placed on the receiving stand 3. Thereafter, as shown in FIG. 7, the ground is excavated in the work room 9 of the cradle 3 so that the cradle 3 is lowered to a predetermined depth. Is sunk. At this time, as shown in FIG. 8, when the underground continuous wall 4 and the pedestal 3 have different outer shapes, a gap is formed between the underground continuous wall 4 and the pedestal 3. It is formed. Then, as shown in FIG. 9, after the building 2 such as the nuclear reactor moves into the ground, the lid 5 is placed on the upper end surface of the underground continuous wall 4 to construct the storage 1, A building 2 such as a nuclear reactor is discarded and stored in the storage 1.

According to such a method of disposing and storing a building such as a nuclear reactor, the cradle 3 is provided on the ground surface in advance, and the working chamber 9 below the cradle 3 is filled with foam mortar. Since the unbalanced load applied to the pedestal 3 can be suppressed, and the pedestal 3 can uniformly support the building 2 such as a nuclear reactor, the building 2 such as a nuclear reactor can be reliably supported. On the other hand, an underground continuous wall 4 is provided so as to surround the cradle 3, and then the building 2 such as a nuclear reactor is moved onto the cradle 3 by the traction device 10, and the ground is formed in the work room 9 of the cradle 3. Excavation is performed, and the cradle 3 and the building 2 such as the reactor are sunk. For this reason, when the cradle 3 is lowered, the earth pressure applied to the cradle 3 can be supported by the underground continuous wall 4, so that the work of supporting the soil around the cradle 3 can be eliminated, and Can be improved, and the safety of the settlement operation of the cradle 3 can be improved.

[0026]

As described above, according to the method for disposing and storing a building such as a nuclear reactor and the storage according to the present invention, the following effects can be obtained. According to the method for disposing and storing a building such as a nuclear reactor according to claim 1, the receiving base is provided in advance on the ground surface, and the building such as the nuclear reactor is moved on the receiving base by a traction device. , Reactors and other buildings can be moved in a lump, eliminating the need to disassemble and dismantle this building.
The safety in the work of moving the building can be improved. Thereafter, the cradle is lowered to a predetermined depth, and a peripheral wall is provided in the ground to move a building such as a nuclear reactor into the ground, so that the building is supported by the cradle. Thus, the building can be sunk and the peripheral wall can be constructed underground. For this reason, it is not necessary to suspend and unload the building, so even in a building such as a large nuclear reactor, it can be safely moved underground, and the surrounding wall is constructed at the time of the movement, which is necessary for disposing and storing the building. The period can be shortened.
Since the lid is provided on the upper part of the building, the building can be collectively disposed and stored in the storage, and the storage can be constructed at the time of storage, so that the period required for the disposal and storage of the building can be shortened. Also, while lowering the cradle,
Because the surrounding wall will be provided,
Can be performed at the same time.
There is no need to install a bottom plate, which greatly shortens the construction period
Excavated the ground directly and was supported by the cradle
Fill the backfill material in advance as the reactors and other buildings will sink.
And then remove the backfill material
Compared to the method of sinking the building located on the side
The construction period can be shortened.

According to disposal and storage method of building a nuclear reactor such as claimed in claim 2, it is possible to achieve the effect according to claim 1, a cradle provided with a pre-ground surface, the cradle of the working Since the configuration is such that the foam mortar is filled in the chamber, when the building is moved onto the receiving table, the unbalanced load applied to the receiving table can be suppressed. For this reason, since the supporting force of the cradle can be increased, a building such as a nuclear reactor can be reliably supported.

According to the method for disposing and storing a building such as a nuclear reactor according to the third aspect of the present invention, a cradle is provided on the ground surface in advance, and a peripheral wall is provided in the ground surrounding the cradle. The earth pressure applied to the storage is supported by the peripheral wall. After that, the building such as the nuclear reactor is moved on the cradle by the traction device, and the cradle is lowered to a predetermined depth, whereby the building is moved underground, and a lid is provided on the upper part of the building. Therefore, when the cradle is lowered, the earth pressure applied to the cradle is supported by the peripheral wall. For this reason,
Since the work of supporting the soil around the cradle can be eliminated, the workability of the cradle sinking can be improved, and the safety of the sinking work of the cradle can be improved. Ma
The cradle and its support while directly excavating the ground
Of the nuclear reactor, etc.
Excavate the installation site of the shop and fill it with backfill material in advance.
And remove this backfill material
Compared to the method of sinking the placed building,
Can shorten the period.

According to the method for disposing and storing a building such as a nuclear reactor according to the fourth aspect, the effects described in the third aspect can be obtained.
Since the work chamber of the pedestal is filled with the foam mortar, when the building such as the nuclear reactor is moved onto the pedestal, the unbalanced load applied to the pedestal can be suppressed. For this reason, since the supporting force of the cradle can be increased, a building such as a nuclear reactor can be reliably supported.

According to the storage of a building such as a nuclear reactor according to claim 5, a cradle for supporting a lower part of a building such as a nuclear reactor and a cradle provided on an upper peripheral portion of the cradle so as to surround the periphery of the building . <br/> Since the peripheral wall and the lid that covers the upper part of the building are configured, and the peripheral wall and the receiving stand are provided underground,
Buildings such as nuclear reactors are collectively housed in underground storage, eliminating the need for disassembly and dismantling work of buildings such as nuclear reactors. For this reason, it is possible to improve the workability of disposing and storing a building such as a nuclear reactor, prevent the spread of environmental pollution, and reduce the exposure to radiation. be able to. Since the cradle has a basement, the ground below the cradle can be excavated in the basement, and the caisson method can be applied. For this reason, the building such as the nuclear reactor can be sunk to a predetermined depth while the building such as the nuclear reactor is supported by the pedestal, so that the building such as the nuclear reactor can be safely and reliably sunk.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a storage of a building such as a nuclear reactor of the present invention.

FIG. 2 is a cross-sectional view showing a cradle installed on the ground surface in the cradle of FIG. 1;

FIG. 3 is a sectional view showing an operation of mounting a building such as a nuclear reactor of FIG. 1 on a cradle of FIG. 2;

FIG. 4 is a sectional view showing an operation of lowering a building such as a nuclear reactor and a cradle of FIG. 3;

5 is a cross-sectional view showing another embodiment of FIG. 1 and showing an underground continuous wall surrounding the cradle of FIG. 2;

6 is a cross-sectional view showing an operation of mounting a building such as a nuclear reactor of FIG. 1 on a cradle of FIG. 5;

FIG. 7 is a sectional view showing an operation of lowering a building such as a nuclear reactor and a cradle of FIG. 6;

FIG. 8 is a front view of FIG. 7;

FIG. 9 is a cross-sectional view showing the storage house stored in the storage area after the settling operation of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Storage 2 Buildings such as reactors 3 Cradle 4 Perimeter wall (underground continuous wall) 5 Lid 7 Basement room 9 Work room 10 Traction device

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Bunji Otsubo 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Masanao Saito 1-2-3 Shibaura, Minato-ku, Tokyo Shimizu (72) Inventor Katsuyuki Torii 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (56) References JP-A-62-141260 (JP, A) JP-A-1- 66372 (JP, A) (58) Fields studied (Int. Cl. ⁷ , DB name) E04G 23/06 E04H 7/00

Claims (5)

(57) [Claims] 1. A method for cutting off an activated portion including a nuclear reactor from other portions and collectively discarding and storing a building such as a nuclear reactor comprising the activated portion, comprising: On the surface , the cutting edge along the outer periphery lower part, surrounded by the cutting edge
A cradle having a working room and an inner basement is provided, and a building such as a nuclear reactor is moved on the cradle by a traction device, and the cradle sinks to a predetermined depth while excavating the ground. A building such as a nuclear reactor, wherein a building such as a nuclear reactor is moved underground by providing a peripheral wall in the ground above the outer periphery of the cradle, and a lid is provided in the upper part of the building. Disposal of
Storage method. 2. Disposal of a building such as a nuclear reactor according to claim 1.
This is a storage method, in which a cradle is provided on the ground surface in advance, and a working chamber of the cradle is filled with foam mortar, and a building such as a nuclear reactor is moved onto the cradle, and then excavated.
Sometimes the foam mortar is removed to form a working room space,
A method of disposing and storing a building such as a nuclear reactor, wherein excavation is performed using a working room space . 3. A method for cutting off an activated part including a nuclear reactor from other parts and collectively discarding and storing a building such as a nuclear reactor comprising the activated part, On the surface , the cutting edge along the outer periphery lower part, surrounded by the cutting edge
And a surrounding wall is provided in the ground surrounding the pedestal, and a building such as a nuclear reactor is moved onto the pedestal by a traction device. A method for disposing and storing a building such as a nuclear reactor, wherein the building is moved underground by excavating the ground to a predetermined depth while excavating the ground, and a lid is provided at an upper portion of the building. . 4. Disposal of a building such as a nuclear reactor according to claim 3.
This is a storage method, in which a cradle is provided on the ground surface in advance, and a working chamber of the cradle is filled with foam mortar, and a building such as a nuclear reactor is moved onto the cradle, and then excavated.
Sometimes the foam mortar is removed to form a working room space,
A method of disposing and storing a building such as a nuclear reactor, wherein excavation is performed using a working room space . 5. Disposal of a building such as a nuclear reactor according to claim 1.
A storage, which is made by a storage method , wherein an activated portion including a nuclear reactor is cut off from other portions, and a building such as a nuclear reactor including the activated portion is collectively stored. Supports the lower part of the building, such as a furnace , the cutting edge along the outer periphery lower part,
A pedestal having an inner basement, respectively , provided on the upper periphery of the cradle to surround the building
Peripheral wall and is composed of a cover portion for covering the upper portion of the building, vault building of a nuclear reactor such as the cradle and the peripheral wall, characterized in that the thus provided in the ground.