JP2019167785A - Inundation prevention device, water cutoff plate and structure - Google Patents

Abstract

To provide a water cutoff plate capable of being manufactured with high productivity and realizing high intensity and weight reduction.SOLUTION: A water cutoff plate 30 is employed and installed on a structure. The water cutoff plate 30 comprises: a plurality of carbon fiber-reinforced resin composite materials 50 including carbon fiber and resin; and a holding body 40 holding the plurality of the carbon fiber-reinforced resin composite materials 50 in a laminated state. Each of the carbon fiber-reinforced resin composite materials 50 comprises: a base part 51 in a sheet shape and a plurality of rib parts 52 arranged on the base part 51.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a flood prevention device, a water stop plate, and a structure. More specifically, the present invention relates to an inundation prevention device and a water stop plate that are installed at a location where there is a possibility of inundation, such as an entrance of a building or an entrance of a basement, and a structure used for the water stop plate.

  Conventionally, sandbags and waterstops have been used to prevent water overflowing on the road from entering a building or underground facility when heavy rain or storm surge occurs. In particular, since underground flooding in front of Hakata Station due to heavy rain that occurred in 1999, waterstops with panel-type waterstops inserted between columns are widely used at the entrances and exits of underground shopping malls and subways. did. For example, in Patent Document 1, a plurality of basic frame materials having a rectangular cross section that is long in the horizontal direction are sequentially stacked and connected one by one, and an edge frame material is attached around the connected plate bodies. It is disclosed to use a water stop plate. Such a water stop plate is installed in a watertight manner in a groove formed on the opposing surfaces of a pair of support columns arranged at a predetermined interval and a groove formed on the floor.

However, the water stop plate disclosed in Patent Document 1 is heavy because the basic frame material is made of metal, and is not easy to carry, and it takes time to assemble and install the water stop plate. .
Patent Document 2 discloses a waterproof device in which a water stop plate is replaced with a carbon fiber reinforced resin composite material for the purpose of weight reduction.
Patent Document 3 discloses a waterproof device using a carbon fiber reinforced resin composite material having a hollow structure as a water stop plate.

Japanese Utility Model Publication No. 4-21857 JP, 2006-191236, A JP 2017-197998 A

As mentioned above, mainly in the entrances and exits of subways and underground malls, the inundation prevention device is used in which a water stop plate is fitted to the support from above, and there are water stop support posts at both ends of the entrance to the basement. The installation form that the container which kept the water stoppage was put on the way came to be seen well.
However, according to the study of the present inventors, even if lightweight hollow aluminum is used as the metal water stop plate described in Patent Document 1 as described above, a 1 m ² plate with a thickness of 18 mm is 15 kg. Because it is close, it was extremely difficult to carry alone.
Although the CFRP described in Patent Document 2 is lighter than aluminum, non-hollow CFRP is 12 to 13 kg under the same conditions, and the weight problem has not yet been solved.
Patent Document 3 discloses a hollow CFRP panel, which is estimated to be about 8 to 10 kg under the same conditions and is lightweight, but in order to create one hollow part, a mandrel (formwork frame) around Since the work of winding CFRP around is necessary, there is a problem that productivity is extremely poor.

  The present invention has been made in view of such problems, and by using a known technique such as extrusion molding or press molding, a carbon fiber reinforced resin composite material (hereinafter referred to as a carbon fiber reinforced resin composite material having a multi-rib structure that can be manufactured with high productivity). It has been found that by using two or more stacked sheets (which may be referred to as rib sheets), it is possible to manufacture a water stop plate that is excellent in mechanical strength and light in weight with high productivity.

The first water stop plate according to the present invention is:
It is a water stop plate used by being installed in a structure,
A plurality of carbon fiber reinforced resin composites including carbon fiber and resin;
A holding body that holds the plurality of carbon fiber reinforced resin composites in a laminated state,
Each carbon fiber reinforced resin composite material has a sheet-like base portion and a plurality of rib portions provided on the base portion.

  In the first water stop plate according to the present invention, the plurality of carbon fiber reinforced resin composite materials may be bonded to each other.

  In the first water stop plate according to the present invention, a hollow portion may be formed between the plurality of carbon fiber reinforced resin composite materials.

  In the first water stop plate according to the present invention, the plurality of carbon fiber reinforced resin composite materials are a first carbon fiber reinforced resin composite material and a second carbon fiber which are arranged so that the rib portions face each other. A reinforced resin composite material may be included.

  In the first water stop plate according to the present invention, the rib portion of the first carbon fiber reinforced resin composite material and the rib portion of the second carbon fiber reinforced resin composite material may extend in parallel to each other. .

  In the first water stop plate according to the present invention, the rib portion of the first carbon fiber reinforced resin composite material and the rib portion of the second carbon fiber reinforced resin composite material are bonded by an adhesive. Also good.

  In the first waterstop plate according to the present invention, the holding body may be a frame body that extends along a peripheral edge of a panel material formed by laminating the plurality of carbon fiber reinforced resin composite materials.

The structure according to the present invention comprises:
Provided with a plurality of carbon fiber reinforced resin composites including carbon fiber and resin,
The plurality of carbon fiber reinforced resin composite materials are bonded to each other,
Each carbon fiber reinforced resin composite material has a sheet-like base portion and a plurality of rib portions provided on the base portion.

  The structure according to the present invention is such that one carbon fiber reinforced resin composite material included in a plurality of carbon fiber reinforced resin composite materials has other carbon fiber reinforced resin included in the plurality of carbon fiber reinforced resin composite materials in its rib portion. It may be adhered to the composite material.

In the structure according to the invention,
The base portion includes the carbon fiber extending in two different directions and a resin,
The surface layer of the rib portion may include a fiber extending in one direction and a resin.

In the structure according to the invention,
Each carbon fiber reinforced resin composite material includes a longitudinal direction and a short direction perpendicular to the longitudinal direction,
The surface layer of the rib portion may include fibers extending in the longitudinal direction.

In the structure according to the invention,
Each carbon fiber reinforced resin composite material includes a longitudinal direction and a short direction perpendicular to the longitudinal direction,
The rib portion may extend along the longitudinal direction.

  In the structure according to the present invention, a hollow portion may be formed between the plurality of carbon fiber reinforced resin composite materials.

  The 2nd water stop board by this invention is equipped with either of the structures by this invention mentioned above.

  The inundation preventing device according to the present invention includes any one of the first and second water stop plates according to the present invention described above.

  In the inundation preventing apparatus according to the present invention, the water stop plate may be installed such that the rib portion of the carbon fiber reinforced resin composite material extends in a horizontal direction.

  According to the present invention, it is possible to impart excellent mechanical strength to a water stop plate that can be manufactured with high productivity, and to reduce the weight of the water stop plate.

FIG. 1 is a perspective view showing an inundation preventing device for explaining an embodiment of the present invention. FIG. 2 is an exploded perspective view showing a water stop plate of the inundation preventing device of FIG. FIG. 3 is a longitudinal sectional view showing a water stop plate of the inundation preventing apparatus of FIG. 4 is a partially enlarged view of the water stop plate of FIG. FIG. 5 is a perspective view showing a part of the carbon fiber reinforced resin composite material included in the water stop plate of FIG. 3. FIG. 6 is a schematic diagram for explaining a method of manufacturing the carbon fiber reinforced resin composite material of FIG. FIG. 7 is a cross-sectional view corresponding to FIG. 4 and is a view for explaining a modification of the water stop plate. FIG. 8 is an exploded perspective view corresponding to FIG. 2 and is a view for explaining another modified example of the water stop plate. 9 is a cross-sectional view corresponding to FIG. 4, and is a vertical cross-sectional view of the water stop plate of FIG. 9. FIG. 10 is a cross-sectional view corresponding to FIG. 4 and is a view for explaining still another modified example of the water stop plate.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIGS. 1-10 is a figure for demonstrating one Embodiment by this invention. Among these, FIG. 1 is a perspective view showing the inundation prevention device installed in a structure. In the drawings attached to the present specification, for the sake of illustration and ease of understanding, the scale, the vertical / horizontal dimension ratio, and the like are appropriately changed and exaggerated from those of the actual product.

  The inundation prevention device 10 is installed in the opening OP of the structure S for the purpose of preventing inundation of the structure S, and stops water, thereby preventing water from flowing into the structure S through the opening OP. Examples of the opening OP of the structure S to which the inundation preventing apparatus 10 can be applied include entrances and exits of buildings such as buildings and houses, and entrances and exits of underground structures such as subway stations and underground malls. And the inundation prevention apparatus 10 prevents the inflow of the rainwater and seawater which overflowed on the area | region (for example, road) which faced the opening part OP by heavy rain, flood, storm surge, etc. into the structure S inside.

  In the illustrated example, the opening OP in which the inundation preventing device 10 is installed has a floor part f and a pair of wall parts (not shown) located on both sides of the floor part f. The opening OP constitutes an entrance located at the top of the stair st (see FIG. 1) leading to the underground facility. The doorway faces an external region such as a road where rainwater, seawater, etc. can flow and accumulate, and the inundation prevention device 10 prevents water from flowing from the external region to the staircase st. Hereinafter, on the basis of the opening OP and the infiltration prevention device 10 installed in the opening OP, the side on which water is to be prevented, that is, the side of the staircase in the illustrated example is referred to as “inside” Is the opposite side, and the side of the area where the water to be stopped is accumulated is called “outside”.

  As shown in FIG. 1, the inundation preventing device 10 includes a support column 20 and a water stop plate 30 held by the support column 20 as main components. In the illustrated example, the flood prevention device 10 includes a first support column 20A and a second support column 20B. The water stop plate 30 is disposed between the pair of support columns 20A and 20B, and both side edges thereof are held by the pair of support columns 20A and 20B. The support column 20 is disposed so as to contact the floor portion f and the wall portion. The water stop plate 30 is disposed in contact with the floor portion f. The support 20 and the water stop plate 30 realize water stop at the opening OP.

  Hereinafter, each component of the flood prevention apparatus 10 is demonstrated in order.

  First, the support | pillar 20 is demonstrated. As shown in FIG. 1, the pair of struts 20A and 20B are arranged separately in the horizontal direction. The first support column 20A is provided corresponding to one of the pair of wall portions defining the opening OP, and the second support column 20B is provided corresponding to the other of the pair of wall portions. In the illustrated example, the support column 20 is fixed to the opening OP. However, the present invention is not limited to the illustrated example, and at least one of the pair of support columns 20A and 20B may be detachable from the opening OP.

  The pair of struts 20A and 20B are configured symmetrically. The struts 20A and 20B are formed with grooves 21 at positions facing each other in the horizontal direction. The groove 21 opens in the horizontal direction and also opens on the upper side in the vertical direction. When the inundation preventing device 10 is used, the water stop plate 30 is housed in the groove 21 at its side edge and is held upright by the support column 20. It is preferable that the side edges of the support column 20 and the water stop plate 30 are in watertight contact with each other in the groove 21 in order for the water intrusion prevention device 10 to exhibit water stop performance.

  Next, the water stop plate 30 will be described. The water stop plate 30 is a member that is held between the pair of struts 20A and 20B and blocks water flowing from the outer OS to the inner IS. In the event of an emergency such as a natural disaster, the water stop plate 30 is installed in the opening OP to stop water as shown in FIG. On the other hand, the inundation preventing device 10 can be removed from the opening OP at the normal time when it is not necessary to use it (when not in use). Attachment of the water stop plate 30 to the column 20 is realized by inserting each side edge of the water stop plate 30 into the groove 21 of the corresponding column 20 from the upper side to the lower side. Moreover, the removal of the water stop plate 30 from the support column 20 is realized by drawing each side edge of the water stop plate 30 upward from the inside of the groove 21 of the corresponding support column 20.

  2 to 4 are perspective views or longitudinal sectional views showing the water stop plate 30. 2 to 4 and FIGS. 7 to 10 to be described later, the x-axis direction, the y-axis direction, and the z-axis direction common to FIG. 1 are defined in order to show the positional relationship with the installation state shown in FIG. ing. In the illustrated example, both the x-axis direction and the y-axis direction are horizontal directions. The x-axis direction is a direction connecting the pair of support columns 20, and the y-axis direction is a direction connecting the inner IS and the outer OS.

  As shown in FIGS. 2 to 4, in the present embodiment, the water blocking plate 30 includes a holding body 40 and a structure (panel material) 45. The water stop plate 30 is an elongated panel-like member as a whole. In the installed state, the water blocking plate 30 includes a longitudinal direction along the x-axis direction and a short direction along the z-axis direction. The length (width) along the longitudinal direction (x-axis direction) of the water blocking plate 30 can be, for example, 1000 mm or more and 5000 mm or less. The length (height) along the short side direction (z-axis direction) of the water stop plate 30 can be set to, for example, 100 mm or more and less than 1000 mm. The thickness along the y-axis direction of the water stop plate 30 can be set to, for example, 1 mm or more and 60 mm or less.

  The structure (panel material) 45 includes a plurality of carbon fiber reinforced resin composite materials 50. The carbon fiber reinforced resin composite material 50 includes carbon fibers and a resin. The carbon fiber reinforced resin composite material 50 is a member manufactured using a so-called carbon fiber reinforced resin (Carbon Fiber Reinforced Plastics) material. Therefore, the carbon fiber reinforced resin composite material 50 has a feature that it is lightweight and has high strength, that is, high specific strength.

  As shown in FIGS. 2 and 5, each carbon fiber reinforced resin composite material 50 is a sheet-like member having an outer shape corresponding to the contour of the water stop plate 30. Here, FIG. 5 is a figure for demonstrating the carbon fiber reinforced resin composite material 50 with FIG. As shown in FIG. 5, the carbon fiber reinforced resin composite material 50 includes a sheet-like base portion 51 and a plurality of rib portions 52 provided on the base portion 51. The plurality of rib portions 52 are arranged in one direction, and each rib portion 52 extends linearly in a direction that is not parallel to the one direction that is the arrangement direction. The plurality of rib portions 52 are arranged at intervals. Therefore, the skin part (surface) of the base part 51 is exposed between the two rib parts 52 adjacent in the arrangement direction.

  The plurality of carbon fiber reinforced resin composite materials 50 included in the water blocking plate 30 may have the same configuration or different configurations.

  In the example shown in FIG. 5, the plurality of rib portions 52 are arranged in the first direction d <b> 1 along the base portion 51. Each rib portion 52 extends linearly in a second direction d2 along the base portion 51 perpendicular to the first direction d1. That is, the rib portion 52 is formed as a portion extending linearly. As an example, the dimensions shown in FIG. 4 can be designed as follows. The width w of each rib portion 52 along the first direction d1 can be 1 mm or more and 15 mm or less. Moreover, the arrangement pitch p of each rib part 52 along the 1st direction d1 can be 20 mm or more and 80 mm or less. The protrusion amount ph of each rib portion 52 along the third direction d3 orthogonal to both the first direction d1 and the second direction d2 can be 3 mm or more and 30 mm or less.

  The illustrated carbon fiber reinforced resin composite 50 is an elongated sheet-like member as a whole. As shown in FIG. 2, the longitudinal direction of the carbon fiber reinforced resin composite material 50 coincides with the second direction d2 that is the longitudinal direction of the rib portion 52, and therefore coincides with the longitudinal direction of the water stop plate 30. Yes. The short direction of the carbon fiber reinforced resin composite 50 matches the first direction d <b> 1 that is the arrangement direction of the rib portions 52, and therefore also matches the short direction of the water stop plate 30.

  In the example shown in FIGS. 2 to 4, the water stop plate 30 includes a first carbon fiber reinforced resin composite material 50 </ b> A and a second carbon fiber reinforced resin composite material 50 </ b> B. The first carbon fiber reinforced resin composite material 50A has a rib portion 52 located on the side facing the second carbon fiber reinforced resin composite material 50B and a base on the side away from the second carbon fiber reinforced resin composite material 50B. It arrange | positions so that the part 51 may be located. The second carbon fiber reinforced resin composite material 50B has a rib portion 52 located on the side facing the first carbon fiber reinforced resin composite material 50A and a base on the side away from the first carbon fiber reinforced resin composite material 50A. It arrange | positions so that the part 51 may be located. Each rib portion 52 of the first carbon fiber reinforced resin composite material 50A faces one rib portion 52 corresponding to one of the second carbon fiber reinforced resin composite materials 50B in the y-axis direction.

  That is, the first and second carbon fiber reinforced resin composite materials 50A and 50B are arranged such that the rib portions 52 face each other. The rib portions 52 of the first and second carbon fiber reinforced resin composite materials 50A and 50B extend in parallel to each other. In the state where the waterstop plate 30 is installed, the rib portion 52 of the carbon fiber reinforced resin composite material 50 extends in the x-axis direction parallel to the horizontal direction.

  With such a configuration, as shown in FIGS. 3 and 4, a hollow portion HP is formed between the first and second carbon fiber reinforced resin composite materials 50 </ b> A and 50 </ b> B. As shown in FIG. 4, the thickness D of the hollow portion HP is such that the protrusion amount ph of the rib portion 52 of the first carbon fiber reinforced resin composite material 50A and the protrusion of the rib portion 52 of the second carbon fiber reinforced resin composite material 50B. It will be larger than the sum of the amount ph. More precisely, the thickness D of the hollow part HP is determined by the protruding amount ph of the rib part 52 of the first carbon fiber reinforced resin composite material 50A and the protruding amount of the rib part 52 of the second carbon fiber reinforced resin composite material 50B. ph and the thickness of the layer of the adhesive 35 located between the rib portion 52 of the first carbon fiber reinforced resin composite material 50A and the rib portion 52 of the second carbon fiber reinforced resin composite material 50B are added together. It becomes the size. The hollow portion HP extends in parallel with the rib portions 52 of the first and second carbon fiber reinforced resin composite materials 50A and 50B. That is, the hollow part HP extends in the x-axis direction parallel to the horizontal direction in the installed state of the water blocking plate 30.

  The plurality of carbon fiber reinforced resin composite materials 50 may be bonded to each other. In the example shown in FIG. 4, the rib portion 52 of the first carbon fiber reinforced resin composite material 50 </ b> A and the rib portion 52 of the second carbon fiber reinforced resin composite material 50 </ b> B are bonded by the adhesive 35. . In this example, the rib portion 52 has a rectangular shape in a cross section orthogonal to the longitudinal direction d2. The adhesive 35 is provided on the top surface of the rib portion 52 and forms an adhesive layer between the top surfaces of the two rib portions 52 facing each other in the y-axis direction.

  Here, the carbon fiber reinforced resin composite material 50 will be further described in detail. The carbon fiber reinforced resin composite material 50 is formed as a composite material including carbon fibers and a synthetic resin impregnated with the carbon fibers. The carbon fiber reinforced resin composite material 50 is designed to have a required strength and to realize a reduction in weight.

  The base portion 51 of the carbon fiber reinforced resin composite material 50 may include carbon fibers and a synthetic resin impregnated in the carbon fibers. Specifically, the base part 51 can be produced as a part formed by impregnating a fibrous base material with a synthetic resin. Examples of the fibrous base material include woven fabric, knitted fabric, and non-woven fabric, and woven fabric is more preferable. That is, the base portion 51 preferably includes carbon fibers extending in two different directions, for example, carbon fibers extending in two orthogonal directions. Examples of the carbon fiber include PAN-based carbon fiber and PITCH-based carbon fiber. As glass fiber, E glass fiber etc. are mentioned, for example.

  The synthetic resin impregnated in the fibrous base material may be either a thermoplastic resin or a thermosetting resin. As the thermoplastic resin, for example, polyolefin resin, polyester resin, polyester resin, polyamide resin and the like are preferable. Examples of the thermosetting resin include an epoxy resin, an unsaturated polyester resin, a phenol resin, a melamine resin, and a polyurethane resin, and an unsaturated polyester resin and an epoxy resin are preferable.

  The rib portion 52 of the carbon fiber reinforced resin composite material 50 may include a core portion including a synthetic resin and a surface layer covering at least a part of the core portion. The rib portion 52 includes a synthetic resin and is formed in a straight bar shape having a predetermined length. As the synthetic resin constituting the core portion, a synthetic resin similar to the synthetic resin included in the base portion 51 can be used.

  The surface layer that forms at least a part of the surface of the core includes resin-impregnated fibers. The resin-impregnated fiber includes a fibrous reinforcing material and a synthetic resin impregnated in the fibrous reinforcing material.

  Examples of the fibrous reinforcing material include woven fabric, knitted fabric, and non-woven fabric. Although it does not specifically limit as a fiber which comprises a fibrous reinforcement, Glass fiber and carbon fiber can be illustrated. As the carbon fiber, for example, a PAN-based carbon fiber, a PITCH-based carbon fiber, or the like can be used. As glass fiber, E glass fiber etc. can be used, for example.

  The synthetic resin impregnated in the fibrous reinforcing material may be either a thermoplastic resin or a thermosetting resin. As the thermoplastic resin, for example, polyolefin resin, polyester resin, polyester resin, polyamide resin and the like are preferable. Examples of the thermosetting resin include an epoxy resin, an unsaturated polyester resin, a phenol resin, a melamine resin, and a polyurethane resin, and an unsaturated polyester resin and an epoxy resin are preferable.

  Next, the manufacturing method of the carbon fiber reinforced resin composite material 50 exemplified above will be described. The carbon fiber reinforced resin composite material 50 exemplified above includes the first sheet material 56 that forms the base portion 51, the second sheet material 57 that forms the surface layer of the rib portion 52, and the core of the rib portion 52. It can be manufactured using a core material 58 that forms a part. The first sheet material 56 is a sheet-like base material formed by impregnating a fibrous base material made of carbon fiber with a synthetic resin. That is, a resin-impregnated fiber can be used as the first sheet material 56. For example, a resin-impregnated fiber obtained by impregnating a fibrous base material obtained by weaving carbon fibers extending in two orthogonal directions with a polypropylene resin can be used as the first sheet material 56. The second sheet material 57 is a sheet-like base material formed by impregnating a fibrous base material with a synthetic resin. That is, a resin-impregnated fiber can be used as the second sheet material 57. For example, a resin-impregnated fiber obtained by impregnating a fibrous base material formed by arranging a large number of glass fibers extending in one direction in a direction perpendicular to one direction with a polypropylene resin can be used as the second sheet material 57. As the core material 58, for example, a rod-shaped member made of polypropylene resin having a rectangular cross section can be used.

  The carbon fiber reinforced resin composite material 50 is produced by welding the first sheet material 56, the second sheet material 57, and the core material 58 by hot pressing. For hot pressing, extrusion molding or press molding can be used.

  In the example shown in FIG. 6 as an example, the first sheet material 56, the second sheet material 57, and the core material 58 are heated in the cavity C formed between the first mold 61 and the second mold 62. The carbon fiber reinforced resin composite material 50 is obtained by pressing. In the example shown in FIG. 6, the first sheet material 56 is arranged such that the carbon fibers included in the first sheet material 56 extend in both the first direction d1 and the second direction d2, for example. Next, a plurality of core members 58 are arranged on the first sheet material 56. At this time, the elongated core members 58 are arranged on the first sheet material 56 with an interval in the first direction d1 so as to extend in the second direction d2.

  Next, the second sheet material 57 is disposed so as to sandwich the core material 58 with the first sheet material 56. Specifically, the glass fibers contained in the second sheet material 57 are arranged above the first sheet material 56 and the core material 58 so as to be along the second direction d2. Next, as shown in FIG. 6, the second sheet material 57 is bent so as to extend along the first sheet material 56 and the core material 58. At this time, the glass fiber contained in the second sheet material 57 is maintained in a state of extending in the second direction d2 perpendicular to the first direction d1.

  Thereafter, with the first sheet material 56, the second sheet material 57, and the core material 58 disposed in the cavity C, the first mold 61 and the second mold 62 are closed and the core material 58 is sandwiched therebetween. The first sheet material 56 and the second sheet material 57 are hot pressed toward each other. Thereby, the carbon fiber reinforced resin composite material 50 of the integral thing is obtained by resin welding.

  In the carbon fiber reinforced resin composite material 50 obtained by the above specific procedure, the base portion 51 includes at least carbon fibers extending in two different directions and a resin due to the first sheet material 56. . The base portion 51 includes carbon fibers extending in the first direction d1 and carbon fibers extending in the second direction d2, and has a high tensile strength in both the first direction d1 and the second direction d2. Moreover, in the area | region where the rib part 52 of the base part 51 is not arrange | positioned, since the 2nd sheet material 57 is laminated | stacked on the 1st sheet material 56, the glass fiber extended in the 2nd direction d2 is also included. become. And due to this glass fiber, the tensile strength in the second direction d2 can be further improved.

  Further, in the carbon fiber reinforced resin composite material 50 obtained by the above specific procedure, the surface layer of the rib portion 52 is a fiber extending in one direction due to the second sheet material 57 (glass fiber in this example). And resin. This fiber (glass fiber) extends in the second direction d2. That is, the fiber (glass fiber) on the surface layer of the rib portion 52 extends in parallel with the linear rib portion 52. The fiber contained in the surface layer of the rib part 52 contributes to the improvement of the tensile strength in the second direction d2.

  In addition, the structure of the carbon fiber reinforced resin composite material 50 demonstrated here is only a specific example, and various changes are possible. For example, the carbon fibers included in the base portion 51 may extend in a direction that is not parallel to both the first direction d1 and the second direction d2. Moreover, you may make it the fiber contained in the surface layer of the rib part 52 extend in the direction non-parallel to the 2nd direction d2. Further, the second sheet material 57 may be disposed only on the core material 58.

  Next, the holding body 40 will be described. The holding body 40 is a member that holds a plurality of carbon fiber reinforced resin composite materials 50. In the example shown in FIG. 2, the holding body 40 is a frame body that extends along the periphery of a structure body (panel material) 45 formed by laminating a plurality of carbon fiber reinforced resin composite materials 50. The holding body 40 extends along the first frame portion 40 a extending along the upper edge portion of the structure body 45, the second frame portion 40 b extending along the lower edge portion of the structure body 45, and both side edges of the structure body 45. And a third frame portion 40c and a fourth frame portion 40d extending in the direction. As shown in FIGS. 2 to 4, each of the frame portions 40 a to 40 d is formed as a channel material and surrounds the edge of the structure 45 from three sides. The holding body 40 can be formed of metal or resin.

  Note that the illustrated holding body 40 is merely an example, and various modifications can be made. For example, the holding body 40 may be formed in a rectangular parallelepiped shape, and the structure 45 may be accommodated therein. That is, the illustrated holding body 40 exposes the structural body 45 to the inner IS and the outer OS in the y-axis direction in the installed state of the water blocking plate 30, but the holding body 40 has the inner IS and the inner IS in the y-axis direction. The structure 45 may be covered from at least one side of the outer OS. The illustrated holding body 40 covers the periphery of the structure 45, but may cover only the lower edge and both side edges of the structure 45.

  Next, the usage method of the infiltration prevention apparatus 10 which consists of the above structures is demonstrated.

  The water stop plate 30 of the inundation prevention device 10 is not installed in the opening OP of the structure S when not in use. That is, the water stop plate 30 of the inundation prevention device 10 is removed from the support column 20 at normal times when no abnormality such as natural disaster has occurred. Therefore, passage or the like in the opening OP of the structure S can be performed. The water stop plate 30 removed from the opening OP is stored together.

  Next, when an abnormality such as heavy rain, flood, storm surge, etc. occurs, the water stop plate 30 is installed in the opening OP in order to prevent water from flowing into the inside IS of the structure S through the opening OP. By installing the water stop plate 30 in the opening OP, water can be stopped and the structure S can be prevented from being flooded.

  First, the water stop plate 30 is transported from the storage location to the opening OP. In the present embodiment, the waterstop plate 30 is lightened by using the carbon fiber reinforced resin composite material 50, and thus is suitable for transportation. Next, the water stop plate 30 is installed between the pair of support columns 20A and 20B. Specifically, both side edges in the longitudinal direction of the water blocking plate 30 are inserted or press-fitted into the grooves 21 of the corresponding pillars 20 respectively. Thereby, the water stop board 30 can be installed between a pair of support | pillar 20A, 20B.

  During use of the inundation prevention device 10, the water stop plate 30 is held at both side edges in the longitudinal direction (x-axis direction) and receives water pressure from the outer OS to the inner IS. Therefore, the water stop plate 30 is deformed so as to bend with both side edges as fixed ends.

  In the example described above, the carbon fiber reinforced resin composite material 50 included in the water stop plate 30 has the linear rib portion 52 extending in the longitudinal direction (x-axis direction) of the water stop plate 30. In addition, the base portion 51 of the carbon fiber reinforced resin composite material 50 included in the water stop plate 30 has a longitudinal direction (second) of the carbon fiber reinforced resin composite material 50 that coincides with the longitudinal direction (x-axis direction) of the water stop plate 30. Carbon fibers extending in the direction d2) are included. Similarly, the surface layer of the rib portion 52 of the carbon fiber reinforced resin composite material 50 included in the water stop plate 30 has a longitudinal direction of the carbon fiber reinforced resin composite material 50 that matches the longitudinal direction (x-axis direction) of the water stop plate 30. The glass fiber extended in (2nd direction d2) is included.

  The rib portion 52, the carbon fiber, and the glass fiber give the water stop plate 30 with excellent rigidity that resists the water pressure that is received during use of the water immersion prevention device 10. Therefore, it can prevent that the water stop board 30 curves so that it may become convex to inner side IS with a small curvature radius. This effectively prevents both side edges of the water stop plate 30 from slipping out of the grooves 21 of the support column 20 due to the water pressure acting on the water stop plate 30 from the outer OS toward the inner IS. The water stop plate 30 can be stably held between 20A and 20B and the water stop function can be exhibited.

  As described above, in the above-described embodiment, the water stop plate 30 installed and used in the structure includes the plurality of carbon fiber reinforced resin composite materials 50 including carbon fibers and resin, and the plurality of carbon fibers. And a holding body 40 that holds the reinforced resin composite material 50 in a stacked state. Each carbon fiber reinforced resin composite material 50 includes a sheet-like base portion 51 and a plurality of rib portions 52 provided on the base portion 51. The carbon fiber reinforced resin composite material 50 can be manufactured with high productivity by extrusion molding or press molding, and is lightweight and highly rigid. Then, by laminating the plurality of carbon fiber reinforced resin composite materials 50 having the rib portions 52, it is possible to give the waterstop plate 30 a mechanical strength that is significantly higher than that of the single carbon fiber reinforced resin composite material 50. it can. That is, excellent mechanical strength can be imparted to the water stop plate 30 that can be manufactured with high productivity, and the water stop plate 30 can be reduced in weight.

  In the specific example of the embodiment described above, a plurality of carbon fiber reinforced resin composite materials 50 are bonded to each other. For example, by attaching a plurality of carbon fiber reinforced resin composites 50 to each other in advance using an adhesive, the attaching operation of the holding body 40 to the plurality of carbon fiber reinforced resin composites 50, that is, The workability of the assembly work can be greatly improved. Thereby, the productivity of the water stop plate 30 can be further improved. In addition, it is possible to effectively prevent the relative positions of the plurality of carbon fiber reinforced resin composite materials 50 from being displaced due to an impact or the like during use of the water blocking plate 30. Thereby, the water stop board 30 can maintain the outstanding mechanical strength, and can implement | achieve the stable water stop.

  In the specific example of the embodiment described above, the hollow portion HP is formed between the plurality of carbon fiber reinforced resin composite materials 50. Such a water stop plate 30 has excellent mechanical strength, for example, high bending rigidity, while being lightweight. Moreover, even if each carbon fiber reinforced resin composite material 50 itself does not have a hollow portion HP, the hollow portion HP can be formed by a combination of a plurality of carbon fiber reinforced resin composite materials 50, and thus has excellent mechanical strength. The lightweight water blocking plate 30 can be manufactured with excellent productivity.

  In the specific example of the above-described embodiment, the plurality of carbon fiber reinforced resin composite materials 50 includes the first carbon fiber reinforced resin composite material 50A and the second carbon fiber reinforced resin composite material 50A and the second carbon fiber reinforced resin composite materials 50A and 52B, which are arranged so The carbon fiber reinforced resin composite material 50B is included. According to such a water stop plate 30, it is possible to give the hollow portion HP a thickness D that is equal to or larger than the sum of the protruding amounts ph of the rib portions 52 of the two opposing carbon fiber reinforced resin composite materials 50. . That is, when the water stop plate 30 includes the hollow portion HP having a sufficient thickness D, both the weight reduction of the water stop plate 30 and the improvement of the mechanical strength of the water stop plate 30 can be achieved. On the other hand, the protrusion amount ph of the rib portion 52 of each carbon fiber reinforced resin composite material 50 can be suppressed, and thereby the productivity of the carbon fiber reinforced resin composite material 50 can be further improved.

  In the specific example of the embodiment described above, the rib portion 52 of the first carbon fiber reinforced resin composite material 50A and the rib portion 52 of the second carbon fiber reinforced resin composite material 50B extend in parallel with each other. According to such a water stop plate 30, the contact area of the first and second carbon fiber reinforced resin composite materials 50A and 50B can be effectively increased. Therefore, it is possible to effectively prevent the relative positions of the two carbon fiber reinforced resin composite materials 50 from being displaced due to impact or the like. Thereby, the water stop board 30 can maintain the outstanding mechanical strength, and can implement | achieve the stable water stop.

  In the specific example of the above-described embodiment, the rib portion 52 of the first carbon fiber reinforced resin composite material 50A and the rib portion 52 of the second carbon fiber reinforced resin composite material 50B are bonded by an adhesive. . Therefore, the workability of attaching the holding body 40 to the first and second carbon fiber reinforced resin composite materials 50A and 50B, that is, the work of assembling the water stop plate 30, can be greatly improved. Thereby, the productivity of the water stop plate 30 can be further improved. Further, it is possible to effectively prevent the relative positions of the first and second carbon fiber reinforced resin composite materials 50A and 50B from being displaced due to an impact or the like during use of the water blocking plate 30. . Thereby, the water stop board 30 can maintain the outstanding mechanical strength, and can implement | achieve the stable water stop.

  In the specific example of the above-described embodiment, the holding body 40 is a frame that extends along the periphery of a structure (panel material) 45 formed by laminating a plurality of carbon fiber reinforced resin composite materials 50. Therefore, the holding body 40 can be reduced in weight, and the workability of attaching the holding body 40 to the plurality of carbon fiber reinforced resin composite materials 50, that is, assembling work of the water stop plate 30, can be greatly improved. Can do.

  In the above-described embodiment, the structure (panel material) 45 includes a plurality of carbon fiber reinforced resin composite materials 50 including carbon fibers and a resin. The plurality of carbon fiber reinforced resin composite materials 45 are bonded to each other. Each carbon fiber reinforced resin composite 50 includes a sheet-like base portion 51 and a plurality of rib portions 52 provided on the base portion 51. The carbon fiber reinforced resin composite material 50 can be manufactured with high productivity by extrusion molding or press molding, and is lightweight and highly rigid. Then, by bonding the plurality of carbon fiber reinforced resin composite materials 50 having the rib portions 52 to each other, the structure 45 has a significantly higher mechanical strength than the single carbon fiber reinforced resin composite material 50. That is, excellent mechanical strength can be imparted to the structure 45 that can be manufactured with high productivity, and the structure 45 can be reduced in weight. In addition, since the plurality of carbon fiber reinforced resin composite materials 50 are bonded to each other, the handleability of the structure 45 is excellent.

  In the specific example of the embodiment described above, one carbon fiber reinforced resin composite material 50 included in the plurality of carbon fiber reinforced resin composite materials 50 has a plurality of carbon fiber reinforced resin composite materials 50 at the rib portions 52. It adheres to another carbon fiber reinforced resin composite material 50 included. According to such a structure 45, the hollow portion HP can be formed by a combination of a plurality of carbon fiber reinforced resin composite materials 50, so that excellent mechanical strength can be imparted to the structure 45.

  In the specific example of the above-described embodiment, the base portion 51 includes carbon fibers and resin extending in two different directions, and the surface layer of the rib portion 52 includes fibers and resin extending in one direction. In the application to the water blocking plate 30, the structure 45 is usually bent at both ends in the longitudinal direction. Therefore, that is, when the structure 45 is used by being incorporated in the water blocking plate 30, the structure 45 is bent around an axis parallel to the short direction. On the other hand, sufficient rigidity can be efficiently imparted to the structure 45 because the longitudinal direction of the fibers disposed in the base portion 51 and the rib portion 52 has directivity.

  In the specific example of the embodiment described above, each carbon fiber reinforced resin composite material 50 includes a longitudinal direction and a short direction perpendicular to the longitudinal direction, and the surface layer of the rib portion 52 is formed of the carbon fiber reinforced resin composite material 50. A longitudinally extending fiber. When the carbon fiber reinforced resin composite material 50 is applied to the water stop plate 30 as a constituent element of the structure 45, the carbon fiber reinforced resin composite material 50 is normally bent at both ends in the longitudinal direction. That is, the carbon fiber reinforced resin composite material is bent around an axis parallel to the lateral direction when used by being incorporated in the water blocking plate 30. On the other hand, the fibers contained in the surface layer of the rib portion 52 extend in the longitudinal direction of the carbon fiber reinforced resin composite 50, thereby efficiently improving the tensile strength along the longitudinal direction of the carbon fiber reinforced resin composite 50. Can do. That is, the fibers contained in the surface layer of the rib portion 52 can efficiently improve the rigidity of the carbon fiber reinforced resin composite material 50 incorporated and used in the water blocking plate 30.

  In the specific example of the embodiment described above, the carbon fiber reinforced resin composite material 50 includes a longitudinal direction and a short direction perpendicular to the longitudinal direction, and the rib portion 52 extends along the longitudinal direction. . When the carbon fiber reinforced resin composite material 50 is applied to the water stop plate 30 as a constituent element of the structure 45, the carbon fiber reinforced resin composite material 50 is normally bent at both ends in the longitudinal direction. That is, when the carbon fiber reinforced resin composite material 50 is used by being incorporated in the water blocking plate 30, the carbon fiber reinforced resin composite material 50 is bent around an axis parallel to the short direction. On the other hand, the rib portion 52 extends in the longitudinal direction of the carbon fiber reinforced resin composite 50, whereby the tensile strength along the longitudinal direction of the carbon fiber reinforced resin composite 50 can be improved efficiently. That is, the linearly extending rib portion 52 can efficiently improve the bending rigidity of the carbon fiber reinforced resin composite material 50 incorporated and used in the water blocking plate 30.

  In the specific example of the embodiment described above, the hollow portion HP is formed between the plurality of carbon fiber reinforced resin composite materials 50. Such a structure 45 has excellent mechanical strength, for example, high bending rigidity, while being lightweight. Moreover, even if each carbon fiber reinforced resin composite material 50 itself does not have a hollow portion HP, the hollow portion HP can be formed by a combination of a plurality of carbon fiber reinforced resin composite materials 50, and thus has excellent mechanical strength. The lightweight structure 45 can be manufactured with excellent productivity.

  In the specific example of the embodiment described above, the water stop plate 30 is installed so that the rib portion 52 of the carbon fiber reinforced resin composite material 50 extends in the horizontal direction. During use, the water stop plate 30 is bent at both ends in the horizontal direction. On the other hand, the rib part 52 of the carbon fiber reinforced resin composite material 50 extends in the horizontal direction, whereby the tensile strength along the horizontal direction can be efficiently improved. That is, the linearly extending rib portion can efficiently improve the bending rigidity of the water stop plate during use.

  In the above, one embodiment has been described with a plurality of specific examples. However, these specific examples are not intended to limit the one embodiment. The embodiment described above can be implemented in various other specific examples, and various omissions, replacements, and changes can be made without departing from the scope of the invention.

  Hereinafter, an example of modification will be described with reference to the drawings. In the following description and the drawings used in the following description, for parts that can be configured in the same manner as the specific examples described above, the same reference numerals as those used for the corresponding parts in the specific examples described above are used, and overlapping descriptions are given. Is omitted.

  The orientation of the plurality of carbon fiber reinforced resin composite materials 50 held by the holding body 40 can be changed. FIG. 7 shows an example in which the orientation of the plurality of carbon fiber reinforced resin composite materials 50 is changed.

  For example, as in the example shown in FIG. 7, the first and second carbon fiber reinforced resin composite materials 50 </ b> A and 50 </ b> B may be held by the holding body 40 in the same direction. In the example shown in FIG. 7, the first carbon fiber reinforced resin composite material 50 </ b> A has a rib portion 52 located on the side facing the second carbon fiber reinforced resin composite material 50 </ b> B and the second carbon fiber reinforced resin composite material 50 </ b> B. The base portion 51 is disposed on the side away from the composite material 50B. On the other hand, the second carbon fiber reinforced resin composite material 50B is a side where the base portion 51 is located on the side facing the first carbon fiber reinforced resin composite material 50A and is spaced from the first carbon fiber reinforced resin composite material 50A. It arrange | positions so that the rib part 52 may be located in this. Also in the example shown in FIG. 7, the plurality of carbon fiber reinforced resin composite materials 50 held by the holding body 40 are arranged such that the arrangement directions d1 of the rib portions 52 are parallel to each other. Further, the plurality of carbon fiber reinforced resin composite materials 50 are arranged such that the longitudinal directions d2 of the rib portions 52 are parallel to each other.

  In the example shown in FIG. 7, each rib portion 52 of the first carbon fiber reinforced resin composite material 50 </ b> A has one of the corresponding rib portions 52 included in the second carbon fiber reinforced resin composite material 50 </ b> B, and z They are arranged at the same position in the axial direction. That is, in the example shown in FIG. 7, each rib portion 52 of the first carbon fiber reinforced resin composite material 50 </ b> A corresponds to one of the corresponding rib portions 52 of the second carbon fiber reinforced resin composite material 50 </ b> B, y Overlapping in the axial direction. Further, in the example shown in FIG. 7, an adhesive 35 is provided between each rib portion 52 of the first carbon fiber reinforced resin composite material 50 </ b> A and the base portion 51 of the second carbon fiber reinforced resin composite material 50 </ b> B. It may be provided.

  Further, in the example shown in FIG. 7, the structure (panel material) 45 held by the holding body 40 is the first carbon fiber reinforced resin composite material 50A of the second carbon fiber reinforced resin composite material 50B. A plate member 55 disposed on the opposite side is further provided. The plate member 55 may be bonded to the second carbon fiber reinforced resin composite material 50B with, for example, an adhesive. As the plate material 55, a resin plate or a metal plate can be used. The plate material 55 may be produced using a carbon fiber reinforced resin material or a glass fiber reinforced resin material. By providing the plate material 55, it is possible to prevent the rib portion 52 of the second carbon fiber reinforced resin composite material 50 </ b> B from being exposed to one main surface of the water stop plate 30. Thereby, the damage of the rib part 52 of the 2nd carbon fiber reinforced resin composite material 50B and accumulation of the dust etc. on the rib part 52 can be prevented effectively. However, it is not restricted to this example, The board | plate material 55 can be abbreviate | omitted from the water stop board 30 shown by FIG. Further, the holding body 40 may have a wall portion that forms the main surface of the water blocking plate 30, and the wall portion may cover the inside of the holding body 40.

  In addition, when installing the water stop board 30 shown by FIG. 7, either side of the water stop board 30 may be arrange | positioned at inner side IS in a y-axis direction. However, the water stop plate 30 is pressed from the outer OS to the inner IS by water pressure during use. Therefore, a tensile force acts on the inner IS side of the water stop plate 30 and a compressive force acts on the outer OS side of the water stop plate 30. Therefore, from the viewpoint of preventing deformation of the water stop plate 30, the tensile force in the second direction d2 of the first carbon fiber reinforced resin composite material 50A is stronger than the tensile force in the second direction d2 of the plate material 55. The water stop plate 30 is held by the support column 20 so that the first carbon fiber reinforced resin composite 50A side of the water stop plate 30 becomes the inner IS, that is, the left side in FIG. It is preferable. Conversely, when the tensile force in the second direction d2 of the plate material 55 is stronger than the tensile force in the second direction d2 of the first carbon fiber reinforced resin composite material 50A, the plate material 55 side of the water stop plate 30 is It is preferable that the water stop plate 30 is held by the support column 20 so as to be the inner IS, that is, the right side in FIG.

  Moreover, the quantity of the carbon fiber reinforced resin composite material 50 contained in the water stop board 30 is not restricted to two sheets, Three or more sheets may be sufficient. Here, FIGS. 8-10 has shown the example in which the water stop board 30 contains 1st-3rd carbon fiber reinforced resin composite material 50A, 50B, 50C. The mechanical strength of the water stop plate 30 can be further improved by increasing the number of carbon fiber reinforced resin composite materials 50 included in the water stop plate 30. In addition, the thickness along the y-axis direction of the water stop plate 30 can be adjusted by changing the protruding amount ph of the rib portion 52 of each carbon fiber reinforced resin composite material 50.

  FIGS. 8 and 9 are a first example using three carbon fiber reinforced resin composites 50, and the first carbon fiber reinforced resin composite 50A and the second and third carbon fiber reinforced resin composites. The materials 50B and 50C are opposite to each other. 8 and 9, the third carbon fiber reinforced resin composite material 50C is different from the example described with reference to FIGS. 1 to 6 in that the second carbon fiber reinforced resin composite material 50B. It is laminated from the side.

  On the other hand, FIG. 10 is a second example using three carbon fiber reinforced resin composites 50, and the first to third carbon fiber reinforced resin composites 50A, 50B, and 50C face the same direction. Yes. In the example shown in FIG. 10, the third carbon fiber reinforced resin composite material 50C is laminated from the second carbon fiber reinforced resin composite material 50B side with respect to the example described with reference to FIG. Yes. Furthermore, in the carbon fiber reinforced resin composite material 50 shown in FIG. 10, the structure (panel material) 45 held by the holding body 40 is the first and second of the third carbon fiber reinforced resin composite material 50C. Further provided is a plate 55 disposed on the side opposite to the carbon fiber reinforced resin composites 50A and 50B. However, the plate material 55 can be omitted from the water stop plate 30 as in the example shown in FIG.

  Also in the examples shown in FIGS. 8 to 10, the rib portions 52 are arranged so as to overlap in the y-axis direction (stacking direction) between the plurality of carbon fiber reinforced resin composite materials 50. Between the plurality of carbon fiber reinforced resin composite materials 50, the linear rib portions 52 extend in the x-axis direction in parallel with each other. Further, the plurality of carbon fiber reinforced resin composite materials 50 are bonded to each other by an adhesive 35.

  As another modification, the configuration of the carbon fiber reinforced resin composite material 50 described above is merely an example, and various modifications can be made. For example, in each carbon fiber reinforced resin composite material 50, the region in which the fibers (carbon fiber and glass teacher) are included, the direction of the fibers, and the like can be changed from the specific examples described above. Further, in each carbon fiber reinforced resin composite material 50, the longitudinal direction of the rib portions 52 and the arrangement pitch of the rib portions 52 are not limited to the above-described examples. For example, the rib portion 52 may extend in the z-axis direction (height direction). Moreover, the some carbon fiber reinforced resin composite material 50 contained in the water stop board 30 may have a different structure. For example, the longitudinal direction of the rib portions 52 and the arrangement pitch of the rib portions 52 may be different among the plurality of carbon fiber reinforced resin composite materials 50. The types of fibers used may be changed among the plurality of carbon fiber reinforced resin composites 50. The longitudinal direction of the fibers may be different among the plurality of carbon fiber reinforced resin composite materials 50.

  In addition, although the some modification with respect to one Embodiment mentioned above was demonstrated above, naturally, it is also possible to apply combining several modifications suitably.

DESCRIPTION OF SYMBOLS 10 Infiltration prevention device 20 Support | pillar 20A 1st support | pillar 20B 2nd support | pillar 21 Groove | shunt 30 Water stop plate 35 Adhesive material 40 Holding body 45 Structure, panel material 50 Carbon fiber reinforced resin composite material 50A Second carbon fiber reinforced resin composite material 50C Third carbon fiber reinforced resin composite material 51 Base portion 52 Rib portion 55 Plate material 56 First sheet material 57 Second sheet material 58 Core material 61 First mold 62 Second mold S Structure Object OP Opening part f Floor part st Staircase HP Hollow part IS Inner OS Outer ph Projection amount C Cavity C
d1 1st direction d2 2nd direction d3 3rd direction

Claims (15)

It is a water stop plate used by being installed in a structure,
A plurality of carbon fiber reinforced resin composites including carbon fiber and resin;
A holding body that holds the plurality of carbon fiber reinforced resin composites in a laminated state,
Each carbon fiber reinforced resin composite material is a waterstop plate having a sheet-like base portion and a plurality of rib portions provided on the base portion.   The waterstop board according to claim 1, wherein the plurality of carbon fiber reinforced resin composite materials are bonded to each other.   The waterstop board according to claim 1 or 2, wherein a hollow portion is formed between the plurality of carbon fiber reinforced resin composite materials.   The plurality of carbon fiber reinforced resin composite materials include a first carbon fiber reinforced resin composite material and a second carbon fiber reinforced resin composite material arranged so that the rib portions face each other. The water stop board as described in any one of 3.   The waterstop plate according to claim 4, wherein the rib portion of the first carbon fiber reinforced resin composite material and the rib portion of the second carbon fiber reinforced resin composite material extend in parallel to each other.   The water stop according to claim 4 or 5, wherein the rib portion of the first carbon fiber reinforced resin composite material and the rib portion of the second carbon fiber reinforced resin composite material are bonded by an adhesive. Board.   The water retaining plate according to any one of claims 1 to 6, wherein the holding body is a frame that extends along a peripheral edge of a panel member formed by laminating the plurality of carbon fiber reinforced resin composite materials. A structure used for a water stop plate,
Provided with a plurality of carbon fiber reinforced resin composites including carbon fiber and resin,
The plurality of carbon fiber reinforced resin composite materials are bonded to each other,
Each carbon fiber reinforced resin composite material has a sheet-like base portion and a plurality of rib portions provided on the base portion.   One carbon fiber reinforced resin composite material included in the plurality of carbon fiber reinforced resin composite materials is bonded to other carbon fiber reinforced resin composite materials included in the plurality of carbon fiber reinforced resin composite materials at the rib portion. The structure according to claim 8. The base portion includes the carbon fiber extending in two different directions and a resin,
The structure according to claim 8 or 9, wherein a surface layer of the rib portion includes a fiber extending in one direction and a resin. Each carbon fiber reinforced resin composite material includes a longitudinal direction and a short direction perpendicular to the longitudinal direction,
The said surface layer of the said rib part is a structure as described in any one of Claims 8-10 containing the fiber extended in the said longitudinal direction. Each carbon fiber reinforced resin composite material includes a longitudinal direction and a short direction perpendicular to the longitudinal direction,
The structure according to claim 11, wherein the rib portion extends along the longitudinal direction.   The structure according to any one of claims 8 to 12, wherein a hollow portion is formed between the plurality of carbon fiber reinforced resin composite materials.   An inundation preventing apparatus comprising the water stop plate according to any one of claims 1 to 7.   The infiltration prevention device according to claim 14, wherein the water stop plate is installed so that the rib portion of the carbon fiber reinforced resin composite material extends in a horizontal direction.

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