JP6534938B2 - Lining plate installation and rain curing jig and lining plate installation method using the jig - Google Patents

Description

  The present invention relates to a lining plate installation and rain curing jig and a lining plate installation method using the jig, and in particular, a lining suitable for installing a lining plate on the inner surface of a lining lining container made of wall concrete The present invention relates to a plate installation and rain curing jig and a lining plate installation method using the jig.

  A lining-lined container (for example, a fuel storage pool) used in a nuclear power generation facility or the like as a structure requiring installation of a lining plate on the entire inner surface of a container-like large-scale container-like structure composed of wall concrete ). The structure is that a plurality of lining plates are installed on a container-like concrete casing surface using a pre-embedded foundation material.

  For example, in the construction of lining liners used in nuclear power facilities etc., there are two types of work: a construction of a frame concrete for constructing a lining concrete of a lining liner and a construction work of installing a lining plate on the surface of the construction. Each work requires a work floor, such as a scaffolding, that requires the same height as the wall of the lining container.

  In addition, for lining plate installation work of mechanical work mentioned above, work is carried out using a large lifting equipment (for example, a crane), but a large lifting equipment is used in combination due to the restriction of the work area Therefore, the lifting equipment can not be dedicated and affected by the timing of work.

  In particular, in the construction of lining containers such as fuel storage pools of nuclear power generation facilities, there is a roof-free condition for a long period of time, but when attaching and welding lining plates composed of multiple sheets, Rain water, snow, etc. may adhere to the lining plate surface and the concrete casing surface. If rain water, snow or the like adheres to the lining plate surface and the concrete casing surface, these surfaces become wet, which may cause rusting of the lining plate and adversely affect the welding quality.

  For this reason, when installing lining plates, protection from rain water and snow etc. is required, but as mentioned above, since the work of lining lining containers is carried out using a large lifting equipment, a concrete frame and a roof etc. Installation is difficult, protection from rainwater and snow during installation of lining plates is difficult, and the construction period is affected by the weather, and also for installation work of lining plates for mechanical work and pasting welding of lining plates There will be an impact.

  As a method for eliminating the need for rain curing equipment for protecting the inside of a sealed existing underground tank from rainwater, snow, etc., Patent Document 1 discloses an inner wall construction method for repairing the inner wall structure of the existing underground tank. Have been described.

  Patent Document 1 discloses an inner wall construction method for repairing an inner wall structure of an existing underground tank in which a traveling rail and a hoist crane are set using a bracket fixed by an anchor bolt on a side wall of an upper end in the existing underground tank. It is done.

  In this case, in the sealed existing tank, materials and equipment can be carried into the tank from a planned loading port, and the materials and materials can be easily moved to a desired position and height, and inside the sealed existing underground tank Therefore, rain curing equipment for protecting from rain water and snow etc. is unnecessary.

Unexamined-Japanese-Patent No. 1-102175

  However, in the conventional construction method, the installation work of the lining plate for the mechanical work is performed using the large lifting equipment used in combination with the other work (for example, the construction work), so another work (for example, the construction work) The large scale lifting equipment used in conjunction with) can not be dedicated to the machine construction side. There is a problem that it is inefficient because it is affected by the timing of performing work.

  In addition, in order to perform installation work of lining plates for mechanical work, protection from rain water and snow etc. is required, but since mechanical work is work using a large lifting equipment as described above, rain water and snow There was a problem that protection from

  On the other hand, in the construction method described in Patent Document 1, incidental work (for example, anchor bolt setting work and the like) in the existing underground tank is necessary in order to set the bracket and the like in advance. In addition, it is necessary to manually carry materials and equipment in order to make other settings such as a bracket including incidental work in a sealed existing underground tank where no other lifting equipment is installed, and it is not safe. In order to compensate for this, there is also a method of solving by fixing the bracket without accompanying work and setting up lifting equipment for setting materials and materials etc., but it is possible to work in the sealed existing underground tank. It is difficult to set up other lifting equipment, and the method of fixing the bracket without accompanying work will increase the accompanying work because it is forced to firmly fix as a facility to support and transport heavy objects. Is assumed to be rational.

  The present invention has been made in view of the above-mentioned point, and the purpose of the present invention is to carry out the work efficiency of each work even if the frame work and the machine work are performed in combination using a large lifting equipment. Furthermore, it is possible to provide a lining plate installation / rain curing jig that can be protected from rain water, snow, etc. when installing a lining plate, and a lining plate installation method using this jig. is there.

The lining plate installation and rain curing jig of the present invention is a lining plate installation and rain curing used when installing a plurality of lining plates inside a lining lining container of a container-like structure to achieve the above object. a jig, the lining plate mounting and rain curing jig via the transverse rail, and a large pulling elongated consisting of H steel for supporting the transverse line rail, the trolley to enable transverse the traverse rail a mounting is or hoist crane mounted directly on the transverse rail, hands and hanging hook provided on the hoist crane, and supports one side of the long large pull, provided on the container-like structure A first pipe support attached to the slide and the other side of the long pull are supported on a work floor installed in the lining liner container. Supported by the second support, the second pipe support attached to the handrail, the third pipe support attached to the work floor, and the second and third pipe supports A roof member is provided to protect from rain water or snow during the installation operation of the lining plate lifted by the suspension hook.

  Further, the lining plate installation method using the lining plate installation and rain curing jig of the present invention, in order to achieve the above object, the lining plate carried into a plurality of container-like lining inner liner containers, The lining lining is installed while protecting it from rain water or snow by the roof member using the lining plate installation and rain curing jig of the configuration, and the lining lining in a state where the lining plate is protected from rain water or snow one by one It is characterized in that it is moved and installed at a predetermined position inside the container.

  According to the present invention, even when the frame work and the machine work are performed in combination using the large lifting equipment, the work of installing the lining plate can be performed without impairing the work efficiency of each work. Can be protected from rainwater and snow.

1 is a longitudinal sectional view showing a state in which a lining plate installation and rain curing jig of the present invention is installed in a fuel storage pool which is a lining lining container used in a nuclear power plant or the like. It is an expanded sectional view which shows the detail of the lining plate installation and rain curing jig of FIG. It is a longitudinal cross-sectional view for demonstrating the operation | work process in Example 1 of the lining plate installation and rain curing jig of this invention. It is a longitudinal cross-sectional view for demonstrating the conventional construction method which installs a lining plate inside a lining lining container.

  Hereinafter, a lining plate installation and rain curing jig of the present invention and a lining plate installation method using this jig will be described based on the illustrated embodiment.

  1 and 2 show a first embodiment of the lining plate installation and rain curing jig of the present invention installed in a fuel storage pool which is a lining lining container used in a nuclear power plant or the like.

  As shown in the figure, the lining plate installation and rain curing jig 7 of the present embodiment is a long rail made of H steel material which is disposed so as to be orthogonal to the traverse rail 9 and the traverse rail 9. Provided on the hoist crane 11, a hoist crane 11 attached to the walk trolley 10, a first suspension hook 12a provided on the hoist crane 11, and a hoistway crane 8 capable of traversing the traverse rail 9; The chain block device 13 attached via the first suspension hook 12a, the second suspension hook 12b provided on the chain block device 13, and one side of the long pull 8 (FIG. 2 On the right side) and attached to the handrail 5b provided on the operation floor 1 of the lining lining container (fuel storage pool) 3 of the container-like structure A first pipe support 14a, and a large support 15 which is supported on the other side (left side in FIG. 2) of the long large pull 8 and is attached to a work floor 4b installed in the lining lining container 3; Supported by a second pipe support 14b attached to the handrail 5b, a third pipe support 14c attached to the work floor 4b, and second and third pipe supports 14b and 14c; It is roughly comprised from the roof member 16 protected from rain water or snow at the time of installation work of lining plate 6a, 6b lifted with the suspending hook 12b.

  The chain block device 13 is not always necessary, and the installation work of the lining plates 6a and 6b is possible even if the traversable hoist crane 11 is installed directly on the traverse rail 9 without the gear trolley 10 is there.

  Then, as shown in FIG. 1, after carrying in the lining plate 6a to a predetermined position in the lining container 3 in advance with a large lifting equipment (for example, a crane) 2, the lining plate installation and rain curing of this embodiment Working floors 4a and 4b made of existing scaffolds and the like installed all over the inside of lining lining container 3 using tool 7 and handrails 5a and 5b for preventing falling into lining lining container 3 Install using.

  Although FIG. 1 shows only a part of the set state, the roof member 16 is installed on the entire periphery of the lining lining container 3 and the monorail is installed only on the wall on which the lining plate is installed. , Move every time the installation work is completed.

  In addition, the lining plate installation and rain curing jig 7 of the present embodiment can be supported by the work floor 4b made of existing scaffolding and the like and the handrail 5b provided for preventing the fall, and the first pipe support 14a And supported by a large underwriter15. The first pipe support 14a and the large support 15 have a structure capable of adjusting the height of a jack base or the like used in the scaffold material.

  Further, the connecting portion between the first pipe support 14a and the large pull 8 made of H steel material has a structure that can be fastened by a bolt or the like (not shown). Further, the connection between the large pull 8 made of H steel and the work floor 4 b is supported by a large take on 15. As a result, the large pull 8 is firmly fixed to the work floor 4 b.

  Furthermore, in the lining plate installation and rain curing jig 7 of this embodiment, a roof member 16 (supported by the second and third pipe supports 14b and 14c), which is a protection facility against rain water, snow, etc. It is possible to protect the influence from rain water, snow, etc. as well as sticking welding of the lining plate in the installation work of the lining plate.

  FIG. 4 shows a conventional method of installing a lining plate inside the lining liner container 3 for comparison.

  As shown in the figure, generally, work floors 4a and 4b made of a scaffold etc. are installed all over the inside of lining lining container 3 installed on operation floor 1, and further, inside lining lining container 3 Handrails 5a and 5b are provided for preventing the fall.

  Therefore, in the conventional construction method, there are two types of construction work: construction of a frame concrete from the large lifting equipment 2 installed on the operation floor 1, and construction of a lining plate on the surface of the construction. Since the work is being carried out, mechanical work to install lining plates is difficult to set up protection equipment against rain water, snow, etc., in addition to the use restriction of large lifting equipment 2, which affects the timing to carry out the work It was received.

  Thus, in the conventional construction method, when working with the large lifting equipment 2, it was difficult to install protection equipment from rain water, snow, etc. If the rain curing jig 7 is used, protection equipment from rain water, snow, etc. can be easily installed.

  The work process in the lining plate installation and rain curing jig 7 of this embodiment will be described with reference to FIG.

  As shown in this figure, in the present embodiment, the lining plate 6a carried into a plurality of container-like lining lining containers 3 is carried by the roof member 16 using the lining plate installation and rain curing jig 7 described above. While being lifted one by one in a state protected from rain water or snow, the lining plate 6a can be moved to a predetermined position inside the lining container 3 while being protected from rain water or snow one by one.

  That is, as the installation procedure of the lining plate, the lining plate 6a which has been carried into a plurality of sheets collectively is lifted one by one using the lining plate installation and rain curing jig 7 of this embodiment (this state is the lining plate 6b ), It moves to the set position in the lining lining container 3 decided, and installs the lining plate 6a.

  At this time, the plurality of lining plates 6b moved to a predetermined position inside the lining container 3 are welded and joined together in a state protected from rain water and snow by the roof member 16.

  Thus, if the lining plate installation and rain curing jig 7 of this embodiment is used, there is no influence on the frame construction for constructing the frame concrete, and the use of the large lifting equipment 2 used in combination is also restricted. Instead, the mechanical work of installing the lining plate 6b on the surface of the casing is possible, and the installation work of the lining plate 6b can be performed without any influence on the welding quality and the like even if the concrete casing does not have a roof member for a long time.

  Therefore, according to the present embodiment, in the construction of the lining container 3, the large lifting equipment 2 conventionally used in combination with the lining plate 6 a as the lining without disturbing the work efficiency of each of the frame construction and the machine construction. After being carried into the container 3, the lining plate installation work of the mechanical work becomes possible without using it, and there is no influence on the timing of carrying out the work of the mechanical work. Moreover, although it was difficult to install protection equipment from rainwater and snow etc. by the conventional construction method, protection equipment from rainwater and snow etc. is provided because protection equipment (roof member 16) from rain water and snow etc is provided. It is possible, and the influence can also be reduced on the welding quality of lining plate affixing welding.

  In addition, when the installation work of all lining plate 6b is completed, the lining plate of the next wall is installed, but in order to use the rain curing roof (roof member 16) of this example also in the welding work, leaving a rain curing roof As it is, only the lower chain block 13, the hoist crane 11, the gear trolley 10, the traverse rail 9, the large pulling 8, the large underwriting 15, and the first pipe support 14a can be disassembled in order. After disassembling these, the lining plate installation and rain curing jig 7 is installed under the curing roof of the adjacent wall in the same manner as the present embodiment and used for the lining plate installation work.

  The present invention is not limited to the embodiments described above, but includes various modifications. For example, the embodiments described above are described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described. Also, part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. In addition, with respect to a part of the configuration of each embodiment, it is possible to add, delete, and replace other configurations.

  DESCRIPTION OF SYMBOLS 1 ... Operation floor, 2 ... large-scale lifting equipment, 3 ... lining lining container, 4a, 4b ... work floor, 5a, 5b ... handrail, 6a, 6b ... lining plate, 7 ... lining plate installation and rain curing jig, 8: large pulling, 9: traverse rail, 10: gear trolley, 11: hoist crane, 12a: first suspension hook, 12b: second suspension hook, 13: chain block device, 14a: first pipe support, 14b ... 2nd pipe support, 14c ... 3rd pipe support, 15 ... large acceptance, 16 ... roof member.

Claims (7)

A lining plate installation and rain curing jig used when installing a plurality of lining plates inside a lining lining container of a container-like structure, comprising:
The lining plate installation and rain curing jig is attached or traversed through a traverse rail, a long, large pull consisting of H steel material supporting the traverse rail, and a trolley capable of traversing the traverse rail A hoist crane directly attached to a rail, a suspending hook provided to the hoist crane, and one side of the long and large pull are supported and attached to a handrail provided to the container-like structure A first support for the pipe and the other end of the elongated pull, and a second support attached to a work floor installed in the lining liner vessel, and a second attached to the handrail A third pipe support attached to the work floor, and the second and third pipe supports supported by the work floor and lifted by the suspension hook Lining plate mounting and rain curing jig, characterized in that it comprises a roof member to protect from rain or snow during the installation work of innings plate. In the lining plate installation and rain curing jig according to claim 1,
A lining plate is installed and installed, characterized in that a chain block device is attached via the suspension hook provided on the hoist crane, and the lining plate is lifted by a second suspension hook provided on the chain block device. Curing jig. In the lining plate installation and rain curing jig according to claim 1 or 2,
The handrail is for preventing falling into the lining liner container provided in the container-like structure, and the work floor is a transition scaffold provided on the entire circumference of the container inside the lining liner container. Lining plate installation and rain curing jig characterized by that. In the lining plate installation and rain curing jig according to any one of claims 1 to 3,
A lining plate installation and rain curing jig characterized in that the large acceptance and the first pipe support are jack bases whose height can be adjusted. In the lining plate installation and rain curing jig according to any one of claims 1 to 4,
A lining plate installation and rain curing jig characterized in that the large support and the first pipe support are fastened by bolts.   A lining plate carried into a plurality of container-like lining lining containers is carried out from rain water or snow by a roof member using a lining plate installation and rain curing jig according to any one of claims 1 to 5. A lining plate is characterized in that it is lifted in a guarded state one by one, and the lining plate is moved and installed at a predetermined position inside the lining lining container while being protected from rain water or snow one by one. Lining plate installation method using a rain curing jig. In a lining plate installation method using a lining plate installation and rain curing jig according to claim 6,
A lining plate installation and rain curing jig characterized in that a plurality of the lining plates moved and installed to a predetermined position inside the lining lining container are welded and protected in a state protected from rain water or snow. Lining plate installation method using.

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