JP6959674B2 - Water guide - Google Patents

Description

The present invention is preferably provided on an uneven wall surface of a structure such as a tunnel and a retaining wall, and is suitably carried out to guide water flowing out from joints and cracks of the structure to a drainage facility such as a drainage culvert. Regarding the water conveyance device that can be done.

A water guide device of the prior art is shown in, for example, Patent Document 1. In this conventional technique, a pair of long length holders provided in parallel on the wall surface of a tunnel at equal intervals of 500 mm in the road axis direction, and a water guide plate in which both sides in the width direction are held by each holder. , Equipped with.

Each holder has a holder made of synthetic resin and a pair of sealing members provided on both sides of the holder in the width direction. In the middle portion in the width direction between both side portions in the width direction of each holder, a recess that is open facing the space opposite to the wall surface of the structure is formed extending in the longitudinal direction. The head of the anchor body driven into the structure protrudes into the recess of each holder, and a nut is screwed to the head to fix each holder to the wall surface. The structure is a lining concrete wall of a road tunnel, and each holder fixed to the wall surface is positioned so that each holder is arranged on both sides of the joint portion of the wall surface of the lining concrete wall. NS.

The recesses of each holder face the space in the tunnel on the opposite side of the wall surface of the structure and open, and on both sides of the recess in the width direction, a pair of recesses that face outward in the width direction and open. A mating holding portion is provided. One side portion in the width direction and the other side portion in the width direction of the water guide plate are fitted and held in each fitting holding portion, and a watertight water guide space is formed between each water guide plate and the wall surface. ..

Groundwater leaked from joints and cracks in the lining concrete wall flows into the headrace space and is collected. The water that has flowed into the water guide space is guided to the openings at the lower ends on both sides of the water guide device in the longitudinal direction, and is discharged to the upper drainage ditch provided in the roadside zone on both sides of the road surface. An underdrain drainage ditch is provided under the upper drainage ditch, and the water in the underdrain drainage ditch is guided to a drainage pipe (not shown) and discharged to a river or the like.

Each retainer is realized by a long lumber made of an extruded profile of a hard synthetic resin such as hard polyvinyl chloride. Further, the sealing member is realized by a long material having a two-layer structure of a closed-cell foamed synthetic resin and synthetic rubber. Further, the water guide plate is made of a hard synthetic resin having weather resistance and chemical resistance, and is realized by a strip-shaped panel having a thickness of about 2 mm.

Japanese Patent No. 2916407

In the prior art described in Patent Document 1 above, the retainer is made of an extruded shape of hard polyvinyl chloride, and the water guide plate is a mixture of an acrylic resin having weather resistance and chemical resistance and hard polyvinyl chloride. It is made of synthetic resin. Therefore, if the structure to which each holding body and the water guide plate are attached is a lining concrete wall constructed by spraying concrete on the ground by repair work or the like, the wall surface has a large number of different sizes. If there are irregularities and the irregularities are so large that they cannot be absorbed due to the deformation of the sealing member, there is a problem that a watertight water conducting space cannot be formed between the wall surface and the water guiding device.

An object of the present invention is to provide a water guiding device capable of forming a watertight water conducting space even on a wall surface having irregularities of the water conducting device.

The present invention includes a flexible sheet-shaped water guide cover body disposed on the wall surface of a structure.
A water guide device including a fixing means for pressing and fixing the water guide cover body against the wall surface portion.
The water guide cover body
A base sheet made of a flexible and soft synthetic resin,
A reinforcing member laminated on the base material sheet and deformable by a pressing force against the wall surface portion by the fixing means.
A bonding material for joining the reinforcing member and the base material sheet is provided .
The base material sheet is made of a silicone rubber having a hardness of 20 or more and 80 or less according to a durometer A hardness tester specified in JIS K 6249, and has a thickness of 0.4 mm to 1.0 mm.
The reinforcing member is made of a metal mesh body having a thickness of 0.2 to 0.5 mm.
The joining material is a water conducting device made of an adhesive resin .

Further, the present invention is characterized in that the reinforcing member is made of a bendable metal net-like body.

Further, the present invention is characterized in that the reinforcing member is made of a bendable metal plate-like body.

Further, in the present invention, the fixing means is screwed to the anchor body embedded in the structure through the water guide cover body and the water guide cover body to be pressed against the wall surface portion to hold the anchor body. It is characterized by having a screw member.

Further, the present invention is characterized in that the bonding material is made of a resin having adhesiveness.

According to the present invention, the water guide cover body is made of a silicone rubber having a hardness of 20 or more and 80 or less according to a durometer A hardness meter specified in JIS K 6249, and has a thickness of 0.4 mm to 1.0 mm. Since the reinforcing member made of a metal net having a thickness of 0.2 to 0.5 mm is joined to the base sheet made of the material by a joining material made of an adhesive resin , the structure has irregularities. Even on the wall surface, the reinforcing member is bent and deformed along the unevenness of the wall surface together with the base sheet to form a watertight water-conducting space, and water leakage from the wall surface is guided to the drainage facility such as a drainage ditch by the water-conducting space. Can be drained.

It is a horizontal sectional view which shows the water conveyance apparatus 1 of one Embodiment of this invention. It is a partial front view of the water conveyance device 1 viewed from the lower side of FIG. It is sectional drawing which shows the state which the water conveyance apparatus 1 is attached to the structure 2. It is a partial enlarged sectional view which shows the structure of the water guide cover body 4. It is a partial enlarged sectional view which shows the structure of the water guide cover body 4a used in the water guide device of another embodiment of this invention. It is a horizontal sectional view of the water conveyance apparatus 1a of another embodiment of this invention. It is a horizontal cross-sectional view which shows the installation example which attached the water guide device 1 to the inside corner part of the structure 2 in a simplified manner. It is a horizontal cross-sectional view which shows the installation example which attached the water guide device to the protruding corner part of a structure in a simplified manner. It is a perspective view which shows the part of the water conveyance apparatus of another embodiment of this invention simplified. It is a vertical cross-sectional view which shows the installation example which attached the water conveyance device to the horizontal wall surface part of a structure. It is a horizontal cross-sectional view which simplifies the installation example which attached the water guide device of another embodiment of this invention to the step part of a structure. FIG. 12A is an exploded perspective view showing a water guide device according to another embodiment of the present invention, and FIG. 12B is a simplified perspective view showing a water guide device according to another embodiment of the present invention. It is a horizontal cross-sectional view which shows the water conveyance apparatus of another embodiment of this invention.

FIG. 1 is a horizontal cross-sectional view showing a water guide device 1 according to an embodiment of the present invention, FIG. 2 is a partial front view of the water guide device 1 as viewed from below of FIG. 1, and FIG. It is sectional drawing which shows the state attached to the structure 2. The water guide device 1 of the present embodiment is fixed by pressing the flexible sheet-shaped water guide cover 4 and the water guide 4 against the wall surface 3 arranged on the wall surface 3 of the structure 2. Means 5 and.

The structure 2 of the present embodiment is a lining concrete wall of a tunnel, and is constructed by spraying concrete or concrete mortar onto the ground 7. Therefore, the wall surface portion 3 has an uneven shape facing the road space 9 in the tunnel, and is composed of a uniform continuous curved surface and an irregular curved surface and a flat surface in which no flat surface exists.

The water guide cover body 4 of the present embodiment is installed on such a wall surface portion 3, and the water leaked from the leaked portion 6 such as a joint or a crack of a concrete wall is placed on a road shoulder or the like so as not to drip into the road space 7. It is configured so that it can be guided to the provided drainage culvert 8. There is no limitation on the installation interval of the water guide cover 4 in the road axis L1 direction, and it is appropriately determined according to the installation conditions at the site such as the amount of water leakage and the leakage point 6.

As the fixing means 5, a plurality of pan head concrete screws made of stainless steel, which are driven into the structure 2 through the water guide cover body 4, are used. When it is necessary to firmly fix the water guide cover body 4 to the wall surface portion 3 instead of such a pan head concrete screw, the cylindrical portion embedded in the structure 2 is set in the circumferential direction at one end in the axial direction. A hollow anchor sleeve in which a plurality of divided expansion pieces are integrally formed and has a male threaded portion in which an external thread is engraved at the other end in the axial direction of the cylindrical portion, and an expansion piece at one end in the axial direction. A plurality of anchor bodies having an anchor rod provided with a truncated cone-shaped tapered portion inserted into the anchor sleeve and a nut screwed to the male screw portion of the anchor sleeve may be used.

These anchor sleeves, anchor rods and nuts are made of, for example, stainless steel. In such an anchor body, a pilot hole is formed in advance by drilling the structure 2 with a drilling tool such as a concrete drill, and the anchor sleeve is driven into the pilot hole so that the tapered portion expands the expanded piece radially outward. The anchor sleeve is fixed to the structure 2 by pushing it open and expanding it, and the expanded piece biting into the surrounding concrete.

FIG. 4 is a partially enlarged cross-sectional view showing the configuration of the water guide cover body 4. With reference to FIG. 1, the water guide cover body 4 is formed by omitting two base material sheets 10a and 10b (collectively, the subscripts a and b) made of a flexible soft synthetic resin. The "base sheet 10"), the reinforcing member 11 which is laminated on one of the base sheet 10a and deformable by the pressing force against the wall surface portion 3 by the fixing means 5, and the reinforcing member 11 and the base sheet 10a. It is provided with a joining material 12a for joining the above.

The reinforcing member 11 uses, for example, a reinforcing member 11 having a thickness of about 2 mm and a joining material 12a having a thickness of about 0.25 mm to about 1 mm by pressing the reinforcing member 11 against the joining material 12a applied to one of the base sheet 10a. If there is, 1/3 to 1/2 of the thickness is joined in a state of biting into the joining material 12. To such a first laminated sheet, a second laminated sheet in which the bonding material 12b is applied to one surface of the other base sheet 10b is attached so that the bonding materials 12a and 12b face each other. , The water guide cover body 4 shown in FIG. 1 is formed in which the joining members 12a and 12b are substantially integrated.

(Base sheet)
As the material of the base sheet 10, for example, silicone rubber having excellent heat resistance, weather resistance and cold resistance can be preferably used. As for heat resistance, for example, the change in hardness when the state of being heated to 225 ° C. is maintained for 72 hours is about + 2%. As for cold resistance, it does not freeze even at −30 ° C. and can be used even in cold regions. As such a silicone rubber, for example, a silicone rubber obtained by curing a silicone rubber composition can be used, but the hardness by the durometer A hardness tester specified in JIS K 6249 is 20 or more and 80 or less. , Preferably 50 or more and 70 or less silicone rubber can be used. If the hardness is less than 20, the strength as rubber may be inferior, and if it exceeds 80, the elasticity may be inferior.

Other examples of the material of the base sheet 10 include CR rubber having excellent weather resistance, heat resistance and flame retardancy, NBR rubber having excellent oil resistance and chemical resistance, and fluorine having excellent oil resistance and chemical resistance. Rubber, ethylene propylene rubber (EPT) with excellent weather resistance, chemical resistance, heat resistance and aging resistance, butyl rubber (HR) with excellent acid resistance and alkali resistance, acrylic rubber (ACM) with excellent heat resistance and weather resistance Alternatively, ANN), and ultra-stretched polyethylene having excellent tensile strength and tensile elastic modulus and having a shape-retaining function against bending can be mentioned.

For the base sheet 10, a material having characteristics suitable for the mounting environment of the water conveyance device 1 is selected from among such various materials, and the widths are, for example, 0.3 m, 0.5 m , 0.7 m, 1. It is commercially available as a sheet of 0 m, 1.2 m or 1.5 m and thickness of 0.4 mm, 0.6 mm, 0.8 mm or 1.0 mm. The super-stretched polyethylene has a shape-retaining function, does not crack even when repeatedly bent at an acute angle, and can maintain the shape after deformation. Therefore, even if the wall surface portion 3 has a large difference in height of unevenness. , It can be attached along the shape of the wall surface portion 3 without creating a gap due to so-called floating, which is far from the wall surface portion 3, and has high shape followability with respect to the wall surface portion 3.

(Reinforcing member)
The reinforcing member 11 is made of a metal net-like body. As the net-like material, for example, stainless steel, aluminum alloy, or the like having excellent tensile strength and corrosion resistance can be appropriately selected and used. For example, it can be easily bent to a thickness of about 0.2 to 0.5 mm. It is possible to use a plate-like body capable of forming. As the net-like body, a woven or knitted shape such as a lattice shape or a hexagonal shape can be appropriately selected and used.

As another material of the reinforcing member 11, for example, a net-like cloth formed by weaving a thread made of a special modified polypropylene resin or metal, or a net-like material having an outer diameter of about 10 mm obtained by hollow knitting a single fiber. It may be realized by a cylinder. The net-like cloth and cylinder are highly elastic and flexible, have excellent chemical resistance, cold resistance, water resistance and tensile strength, are lightweight, and have high followability to the deformation of the base sheet 10. It allows deformation of the thin base material sheet 10 according to the unevenness of the wall surface portion 3, flexibly bends and deforms along the shape of the wall surface portion 3 to easily fit, and has excellent workability. Further, as the reinforcing member 11, instead of the cloth described above, for example, a metal or resin mesh sheet having an opening of about 1 to 5 mm may be used. This also has the same effect as the reinforcing member made of the cloth or the tubular body described above.

With such a configuration, the flow rate of the leaked water flowing out from the wall surface portion 3, the width and length of the leaked portion 6 such as the joint and the crack of the wall surface portion 3, the amount of protrusion of the water guiding device 1 from the wall surface portion 3, and the width of the water guiding device 1. By changing the number and width of the water guide cover 4 according to various installation conditions such as, it is possible to easily realize a water guide space having a different cross-sectional width, and realize a water guide device 1 with a high degree of freedom in design. can do.

(Joining material)
The bonding material 12 is made of silicone gel. As an example of the material of the silicone gel, those having different degrees of polymerization from liquid to raw rubber at room temperature can be used. As the degree of polymerization, one having an average degree of polymerization in terms of polystyrene by gel permeation chromatography (GPC) of about 50,000 to 20,000 can be used. In another embodiment, the bonding material 12 may be an adhesive resin such as an epoxy resin or a butyl rubber resin instead of the silicone gel.

The bonding material 12 has an adhesive strength of 16 to 18 N / 18 N / when a test piece of 25 mm to 200 mm is attached to the surface of a concrete mortar in a dry state according to the adhesive tape test method for electrical insulation specified in JIS C 2107. Even if a bonding material made of an adhesive resin configured to exhibit an adhesive force of 12 to 14 N / 25 mm for one week when the same test piece is attached to the asphalt surface in a dry state of 25 mm is used. good.

The bonding material 11 is adhered to one main surface of the base sheet 10 in a layered or film form by coating or printing, and the reinforcing member 11 is placed on the reinforcing member 11 so that the reinforcing member 11 adheres to the layered bonding material 12. It may have a different configuration.

As described above, in the water guide device 1 of the present embodiment, a long flexible water guide cover 4 is arranged along the wall surface 3 of the structure 2 to cover the wall surface 3 including the water leakage point 6. Therefore, even if the wall surface portion 3 has irregularities, the water guide cover body 4 can be easily bent along the irregularities of the wall surface portion 3 and flexibly deformed because the wall surface portion 3 is fixed to the wall surface portion 3 by the fixing means 5. It can be attached in such a state that a watertight water-conducting space 16 is formed between the water-conducting cover body 4 and the wall surface portion 3, and water leakage from the water-leaking point 6 of the wall surface portion 3 is caused by the water-conducting space 16 such as a drainage culvert 8. It can be reliably guided to the drainage facility and drained.

The water-conducting cover body 4 can be formed as a multi-layer sheet in which a reinforcing member is joined to the above-mentioned base material sheet 10 by a joining material. As a method for manufacturing the multilayer sheet, for example, various molding methods such as insert molding, dipping, coating, calender molding, and screen printing can be adopted.

FIG. 5 is a partially enlarged cross-sectional view showing the configuration of the water guide cover body 4 used in the water guide device of another embodiment of the present invention. The water guide cover body of the present embodiment is similar to the water guide cover body of the embodiment shown in FIG. 4, and the same reference numerals are given to the parts corresponding to the above-described embodiments. The water guide cover body 4 used in the water guide device 1 of the present embodiment may be formed by joining the reinforcing member 11 with a bendable metal plate-like body and joining the reinforcing member 12. The plate-like body may be easily bent along the unevenness of the wall surface portion 3, and for example, a metal plate such as a stainless steel plate, an aluminum alloy plate, or a copper plate having a thickness of about 0.2 mm to 1.5 mm may be used. , Can be appropriately selected and used according to the required strength, durability and the like.

The water conveyance device 1 of the embodiment according to the present invention is naturally fixed not only to the uneven wall surface portion 3 but also to the flat wall surface portion 3 shown in FIG. 6 by the fixing means 5 such as the anchor body described above. Installation is possible. In FIG. 6, the same reference numerals are given to the parts corresponding to the above-described embodiments. The structure 2 is not limited to the above-mentioned tunnel lining concrete wall, and may be other structures such as various concrete structures such as abutments, piers, and retaining walls. Further, it is also possible to combine each embodiment according to the shape of the unevenness of the wall surface portion 3, the range of water leakage, the amount of water leakage, and the like, and it is possible to easily create a water-conducting space 16 having high watertightness as described above. Can be built.

FIG. 7 is a horizontal cross-sectional view showing a simplified installation example in which the water conveyance device 1 is attached to the inside corner portion 18 of the structure 2, and FIG. 8 is an installation in which the water conveyance device 1 is attached to the outside corner portion 19 of the structure 2. It is a horizontal cross-sectional view which shows the example in a simplified manner. Since the water guide cover body 4 has flexibility, as shown in FIG. 7, the wall surface portion 3 of the structure 2 is recessed toward the side where the wall surface portion 3 is separated from the side facing the wall surface portion 3. Even in the corner portion 18, the water guide cover body 4 is arranged, and both side portions of the water guide cover body 4 in the width direction are fixed to the wall surface portions 3 on both sides with respect to the corner portion 2a by the fixing means 5, and the wall surface portion 3 of the inside corner portion 18 A water guide space 16 can be formed between the water guide cover body 4 and the water guide cover body 4.

Further, as shown in FIG. 8, even if the wall surface portion 3 of the structure 2 is a protruding corner portion 19 protruding toward the side where the wall surface portion 3 approaches when viewed from the side facing the wall surface portion 3, the corner portion 2b The water guide cover body 4 is arranged along the wall surface portions 3 on both sides, and both side portions of the water guide cover body 4 in the width direction are fixed to each wall surface portion 3 by the fixing means 5, and the wall surface portion 3 and the water guide cover of the protruding corner portion 19 are fixed. A water conveyance space 16 can be formed between the body 4 and the body 4.

FIG. 9 is a perspective view showing a part of the water guiding device 1a of another embodiment of the present invention in a simplified manner, and FIG. 10 shows an installation example in which the water guiding device 1a is attached to the horizontal wall surface portion 3 of the structure 2. It is a vertical sectional view. The water guide device 1a of the present embodiment includes a horizontal water guide cover body 41 and a vertical water guide cover body 42. The horizontal water guide cover body 41 includes a rectangular bottom plate 43 in a plan view, a pair of trapezoidal side plates 44a and 44b that are vertically bent and connected to two parallel long sides of the bottom plate 43, and side plates 44a, respectively. It has a pair of rectangular flange portions 45a and 45b protruding from the short side of the 44b opposite to the bottom plate 43 in a direction opposite to each other. The flange portions 45a and 45b are fixed to the wall surface portion 31 constituting the ceiling of the structure 2 by the fixing means 5 described above.

The vertical water guide cover body 42 is configured in the same manner as the above-mentioned horizontal water guide cover body 41 except that the side plates 44a and 44b are rectangular, and has the same cross section in the longitudinal direction. Also in this vertical water guide cover body 42, the flange portions 45a and 45b are fixed to the wall surface portion 32 forming the side wall by the fixing means 5. When the horizontal water guide cover body 41 is attached to the wall surface portion 31 of the ceiling, the bottom plate 43 has a drainage gradient inclined downward toward the vertical water guide cover body 42, and leaks water from the wall surface portion 31 vertically. A drainage channel that can be discharged into the water guide cover body 42 can be easily constructed.

FIG. 11 is a horizontal cross-sectional view showing a simplified installation example in which the water guide device 1b of another embodiment of the present invention is attached to a stepped portion of the structure 2. In the water guide device 1b of the present embodiment, even when the two skeletons 2a and 2b of the structure 2 are displaced at the water leakage point 6 such as a joint and a step 39 is formed, the water guide cover body 4 is stepped. It is bent and attached along 39, and both side portions thereof are fixed to the wall surface portion 3 by the fixing means 5, and the drainage channel can be easily constructed by the watertight water conducting space 16.

FIG. 12A is an exploded perspective view showing the water guide device 1c of another embodiment of the present invention, and FIG. 12B is a simplified perspective view showing the water guide device 1c of another embodiment of the present invention. The same reference mark is attached to the portion corresponding to the above-described embodiment. In the water-conducting device 1c of the present embodiment, when the water distribution pipe 45 is connected to the downstream end of the water-conducting cover body 41 shown in FIG. As shown in FIG. 12A, a flat strip-shaped water guide cover body material 4d is prepared, a hole 46 for inserting the water pipe 45 is formed in the water guide cover body material 4d, and then a bending line 47 is provided on one side. By bending it substantially vertically and watertightly joining it to the end surface 48 of the water guide cover body 41 shown in FIG. 9, it is possible to construct a flow path terminal portion provided with the water distribution pipe 45 shown in FIG. 12B.

By connecting the water distribution pipe 45 of the flow path terminal portion to a public drainage facility such as a sewer pipe with a drainage pipe separately prepared, even the uneven wall surface portion 3 is recovered by the water guide cover body. A drainage channel for treating water or the like can be easily constructed.

FIG. 13 is a horizontal cross-sectional view showing a water conveyance device according to still another embodiment of the present invention. The same reference numerals are given to the parts corresponding to the above-described embodiments. The water guide cover body 4b of the water guide device of the present embodiment is laminated on one base sheet 10a made of a flexible soft synthetic resin and the base sheet 10a, and is attached to the wall surface portion 3 by the fixing means 5. It includes one reinforcing member 11 that can be deformed by a pressing force, and a joining material 12a that joins the reinforcing member 11 and the base material sheet 10a.

According to such a configuration, as compared with the water guide cover body 4 of the embodiment shown in FIG. 1 described above, the reinforcing member 11 is bonded to one base material sheet 10a by the bonding material 12a in a laminated state. The flexural rigidity is low, the flexibility is high, and the fit is high on the uneven wall surface portion 3 having a large height difference, which can be preferably carried out. The fit to the uneven wall surface portion 3 may be determined so that the bending rigidity of the water guide cover body is appropriate according to the uneven shape of the wall surface portion 3. For example, by making the thickness of the base sheet 10a and 10b thinner than the thickness of the base sheet located outside at the protruding corner, the thickness of the base sheet located inside the protruding corner is made thinner. Since it can be easily curved along the above, it is possible to improve the mountability of the water guide cover body to the wall surface portion 3.

Further, since the joint material of the water guide cover body of the present embodiment is exposed, the water guide cover body can be directly attached to the wall surface portion 3 and temporarily attached. As a result, it is possible to prevent the water guide cover body from being displaced on the wall surface until the water guide cover body is fixed by the fixing means, and it is possible to provide a water guide device that is easy to install and has excellent mountability. Wear.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various changes, improvements, etc. can be made without departing from the gist of the present invention. It is possible. Needless to say, all or a part of each of the above embodiments can be combined as appropriate and within a consistent range.

1 Water guide device 2 Structure 3 Wall surface part 4 Water guide cover body 5 Fixing means 6 Leakage point 7 Road space 8 Drainage culvert 9 Road space 10 Base sheet 11 Reinforcing member 12; 12a, 12b Joint material 16 Water guide space 18 Inside corner 19 Outer corner 39 Step 41 Horizontal water guide cover body 42 Vertical water guide cover body 43 Bottom plate 44a, 44b Side plate 45 Water distribution pipe 45a, 45b Flange part 48 End face L1 Road axis

Claims (2)

A flexible sheet-shaped water guide cover body arranged on the wall surface of the structure,
A water guide device including a fixing means for pressing and fixing the water guide cover body against the wall surface portion.
The water guide cover body
A base sheet made of a flexible and soft synthetic resin,
A reinforcing member laminated on the base material sheet and deformable by a pressing force against the wall surface portion by the fixing means.
A bonding material for joining the reinforcing member and the base material sheet is provided .
The base material sheet is made of a silicone rubber having a hardness of 20 or more and 80 or less according to a durometer A hardness tester specified in JIS K 6249, and has a thickness of 0.4 mm to 1.0 mm.
The reinforcing member is made of a metal mesh body having a thickness of 0.2 to 0.5 mm.
The water guiding device , wherein the joining material is made of an adhesive resin. The fixing means includes an anchor body that penetrates the water guide cover body and is embedded in the structure, and a screw member that is screwed to the anchor body and presses and holds the water guide cover body against the wall surface portion. The water conveyance device according to claim 1 , wherein the water guide device is provided.

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