JP2009007899A - Joint water-cut off flexible joint and its use - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a waterway joint water-cut off flexible joint for preventing the leakage of water due to the floating of an elastic joint material or the separation of rubber elastic sheet. <P>SOLUTION: The flexible joint 5 is provided. A water cut off structure 1 is used for waterway faces 4 on both sides of a joint 3 of a waterway 2. The flexible joint 5 comprises a slender thermoplastic elastomer waterproof sheet 5A, at least a pair of slender and rigid plate bodies 5B, an amorphous sealing material 5C, and an fixing member 5D. The plate bodies 5B with their side faces isolated from each other are fixed to the inner face of the waterproof sheet 5A in the longitudinal direction, and a flexible part consisting of the waterproof sheet 5A is formed between the plate bodies 5B. The amorphous sealing material 5C is provided inside the plate bodies 5B in the longitudinal direction. The fixing member 5D passes through the waterproof sheet 5A, the plate bodies 5B and the amorphous sealing material 5C to fix the flexible joint 5 to the waterway faces 4 on both sides of the waterway joint 3. The flexible joint 5 provides the water cut off structure superior in durability and constructing efficiency and an efficient water cut off technique. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  More particularly, the present invention relates to a joint for waterproofing joints and the use thereof, and more particularly, to a joint for repairing a waterway joint for stopping a leaked part of a waterway joint such as a concrete structure or the like, or a part that may be leaked, and the like. This relates to the water stop structure and water stop method.

  Conventional waterway joints are filled with various fillers such as mortar, urethane-based, silicon-based elastic sealing materials, etc. to stop water, but the waterway inequality subsidence due to ground subsidence, If movement of the water channel due to traffic vibrations or movement of the water channel due to expansion or contraction due to temperature occurs, displacement may occur in the joints, and if the filler cannot follow the displacement, water leakage may occur. In addition, urethane-based and silicone-based elastic sealing materials are used by adhering them to joint grooves, so it is necessary to have a base treatment or primer treatment. Especially when repairing, the base is deteriorated, which makes the treatment difficult and requires skill. . Elastic sealing materials such as urethane and silicon are deteriorated and hardened over time, but the cured product cannot follow the displacement of the joint, leading to peeling of the adhesive interface and breakage of the sealing material itself, resulting in water leakage.

As the waterstop structure for the waterway joint, the middle part of the joint material made of a long belt-like elastic body is bent to form a groove-shaped surplus part in the longitudinal direction, and the surplus part is formed in the recess formed in the waterway joint It is known that the locking portions on both sides of the extra length portion are fixed to the wall surface of the water channel (see, for example, Patent Document 1). In addition, the elastic expansion and contraction area of the elastic waterproof sheet covers the joint of the water channel, and is adhesively fixed to the concrete surface of the water channel via a waterproofing agent, so that the structure and elasticity that elastically follow when a joint gap occurs A waterproof sheet is known (see, for example, Patent Document 2).
JP 2000-64446 A JP 2001-262677

  FIG. 10 is a cross-sectional view showing an example of a conventional water stop structure. In Patent Document 1, as shown in FIG. 10, the extra length portion 102 of the joint material 101 is stored in the concave portion 104 formed in the joint portion 103, and the locking portions 105 on both sides of the joint material are placed on the wall surface such as bolts and nuts. By tightening and fixing through the presser plate 107 by the fixing device 106, when the continuous water channel is inclined by displacement, the water stoppage can be maintained at the joint portion that can be accommodated by the extra length portion, Because the extra length fits in the recess, the turbulent flow is generated and the flow is disturbed, and gravel and mud accumulate in the recess, and the elastic body breaks and leaks due to the attack of the roots caused by the growth of the plant during drought. There is a risk. In addition, the locking parts on both sides of the elastic joint material are fastened and fixed to the wall surface of the water channel through the press plate 107 by the fasteners 106 such as bolts and nuts, but the elastic body is fixed through the press plate with bolts and nuts. Even if it is tightened, the bolts and nuts are tightened well, but the intermediate part of the bolts and nuts has a small pressing force and there is a risk of water leakage. Therefore, it is necessary to shorten the distance between the bolt and the nut, and the mounting workability is deteriorated. Moreover, since the joint material made from an elastic body is fastened to the wall surface and water is stopped, when the unevenness of the wall surface such as the repair water channel is large, water leaks from the uneven portion.

  FIG. 11 is a perspective view showing another conventional water stop structure. In Patent Document 2, as shown in FIG. 11, an elastic stretchable region portion 203 of a rubber elastic sheet 202 is provided between the water channel joint grooves 201 and bonded to the back surfaces of the fixed region portions 204 and 204 on both sides of the elastic stretchable region portion 203. An adhesive holding layer 205 is provided, and is adhesively fixed to the waterway concrete surface 207 via a waterproof material 206 held by the holding layer 205. When the joint groove is displaced by an external force such as vibration, the elastic expansion / contraction region portion 203 can follow and stretch elastically, but requires a holding layer such as a nonwoven fabric or an epoxy primer to bond and fix the waterproof material 206, and moisture and dirt on the adhesive base Need processing. Moreover, when the concrete surface unevenness | corrugation like a repair waterway is large, you must perform the smoothing process of a foundation | substrate with mortar. Further, when the elastic expansion / contraction region 203 is elastically stretched, a load is applied to the adhesive fixing portion of the rubber elastic sheet 202, and there is a risk that the adhesive fixing portion peels off.

  Problems to be solved include water leakage due to floating between bolts when fastening the clamp plate of elastic joint material as described above, and leakage due to peeling of the adhesive surface when the rubber elastic sheet is stretched Therefore, it is an object of the present invention to solve such a problem.

  The present invention is a flexible joint for joint water sealing, comprising an elongated thermoplastic elastomer-based waterproof sheet, at least a pair of elongated rigid plate-like bodies, an indeterminate sealing material, and a fastening member, The plate-like body is fixed to the inner surface of the waterproof sheet in the longitudinal direction with the side surfaces spaced apart from each other, a flexible portion made of the waterproof sheet is formed between the plate-like bodies, and the amorphous sealing material is the It is provided inside the plate-like body in the longitudinal direction, and the fastening member penetrates the waterproof sheet, the plate-like body and the irregular sealing material, and is fixed to the surface of the water to be secured on both sides of the joint. The present invention relates to a flexible joint, a water-stop structure using such a flexible joint, and a water-stop method.

  At least one pair of elongated rigid plate-like bodies are fixed in the longitudinal direction inside the elongated waterproof sheet, and a flexible portion by the waterproof sheet is formed between each plate-like body, and in the longitudinal direction inside each plate-like body. To ensure the watertightness of flexible joints at joints more efficiently in the repair of leaking points, etc. of waterway joints by closely attaching the irregular sealing material to be provided to the surface of the water to be sealed Can do.

  Waterproof sheet for the purpose of preventing water leakage between bolts when the elastic joint material is fixed to the waterway joint with a press plate or bolts, or leakage due to peeling of the adhesive surface when the rubber elastic sheet is stretched Rather than pressing itself against the surface of the material to be sealed with a presser plate from the surface, it is fixed to the inner surface of the waterproof sheet with at least one pair of rigid plate members spaced apart from each other, Realized without sacrificing workability by forming a flexible part with a waterproof sheet between each plate-like body, and sticking an amorphous sealing material to the surface of the water to be sealed, for example, the water channel surface inside each plate-like body To do.

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of an example water stop structure. FIG. 2 is a cross-sectional view of the water stop structure of FIG. FIG. 3 is a partial cross-sectional view of the water stop structure of FIG. FIG. 4 (a) is a cross-sectional view of an example steel plate, and FIG. 4 (b) is a top view of the steel plate of FIG. 4 (a). FIG. 5 (a) is a cross-sectional view of an example waterproof sheet-laminated steel sheet, and FIG. 5 (b) is a top view of the waterproof sheet-laminated steel sheet of FIG. 5 (a). FIG. 6 is a partial cross-sectional view showing one example of the waterstop method. FIG. 7 is a partial cross-sectional view showing another process of the water stop method. FIG. 8 is a partial cross-sectional view showing still another process of the water stop method. FIG. 9 is a partial cross-sectional view of a displacement state of one example of the water stop structure.

  As shown in FIGS. 1 to 5, in the water stop structure 1 of one example, the surface of the water stoppage object on both sides of the joint 3 of the water stoppage object, the water stop target object, for example, the waterway 2, for example, the waterway surface 4 A flexible joint, for example, a repairable flexible joint 5 is used. In the waterstop structure 1, the flexible joint 5 includes an elongated thermoplastic elastomer-based waterproof sheet 5A, at least one pair of elongated rigid plate-like bodies 5B, for example, a steel plate, an irregular sealing material 5C, and a fastening member 5D. .

  The thermoplastic elastomer-based waterproof sheet 5A and the plate-like body 5B are bonded to the back surfaces of both end portions in the width direction of the waterproof sheet 5A by attaching the plate-like body 5B to the waterproof sheet member, that is, the plate-like body with the waterproof sheet. What formed this can be used. This is a laminated plate-like body in which at least one surface of the plate-like body 5B is coated with a thermoplastic elastomer waterproof material, for example, a laminated steel plate, and the surface of the thermoplastic elastomer waterproof material is adhered to the waterproof sheet 5A. can do.

  A plate-like body 5B is provided on one and the other water channel surface 4 of both sides of the joint 3, but an irregular sealing material 5C is provided on the water channel surface side of the plate-like body 5B, and the surface of the waterproof sheet 5A The flexible joint 5 is fixed on the water channel surface 4 on both sides of the joint 3 by a fastening member 5D that passes through the waterproof sheet 5A, the plate-like body 5B, and the irregular sealing material 5C and is fixed to the water channel surface 4. .

  A flexible portion 5E is formed between the plate-like bodies 5B by the waterproof sheet 5A following the joint displacement. The flexible part 5E is arranged along the joint.

  The flexible joint 5 has an irregular sealing material 5C between the plate-like body 5B and the base of the water channel surface 4 and the like, so that no load is applied. 4 and so on, excellent water-stopping and durability, and even if the joint 3 is open, the flexible part of the waterproof sheet 5A between the plate-like bodies 5B follows, and the waterproof structure 1 It is excellent in water and durability and can provide an efficient water stop method without impairing the workability of such a water stop structure.

  If the thermoplastic elastomer waterproof sheet 5A is made of soft vinyl chloride resin and the plate-like body 5B is made of a laminate of thermoplastic elastomer waterproof material made of soft vinyl chloride resin, the two are fused. By adhering to each other, it is possible to obtain a sheet-like body with a waterproof sheet adhered to each other in a reliable and excellent state. Such a plate-like body with a waterproof sheet is extremely useful in terms of the water-stopping structure and its workability when used in the above-described flexible joint.

  FIG. 1 shows a perspective view of a water stop structure 1 of a waterway joint of an example of the present invention. The water channel 2 is U-shaped and has water channel joints 3 on the water channel surface 4 at predetermined intervals. A flexible joint 5 is attached to the water channel surfaces 4 on both sides of a part of the water channel joint 3.

  The joints are not limited to waterway joints, but various grooves, circular, rectangular, horseshoe-shaped, egg-shaped pipes, manholes, tunnels, and other structures, sealed water, and water-stopping targets Joints such as objects are included, and joint parts, joints, joints to be repaired, parts to be repaired such as cracks, and water stop target parts are the same.

  The water channel is not limited to a U shape, and may have various shapes such as a rectangle, a semicircle, and a semielliptical shape in cross section. The water channel is often made of concrete, but is not particularly limited, and may be made of various materials.

  The concrete made of waterways, etc., includes those pre-formed (precast) to a length of about 2 m at the factory and those made by placing concrete on site. The life of concrete products is said to be about 50 years. However, in about 30 years, the cement on the surface is eroded by wind and rain, running water, etc., and many of them are in an uneven state where the gravel of the concrete components is raised. Such a water channel is required to have sufficient water-tightness at the joint surface with a flexible joint or the like when repairing a joint.

  FIG. 2 shows a cross section of the flexible joint 5 in the water channel 2, and a top end cover plate 6 is provided at the top end 2 B of the wall 2 A of the water channel 2. The flexible joint 5 is mechanically fixed to the water channel surface 4 by a fastening member 5D at a predetermined interval. The top end cover plate 6 has substantially the same configuration as the flexible joint 5 and is mechanically fixed to the portion partially overlapping the flexible joint 5 and the channel wall top end by a fastening member 5D. The top end cover plate can be used for obtaining water stoppage as required.

  FIG. 3 shows the cross-section in the longitudinal direction of the water stop structure 1 at the joint 3, and shows a cross-section with the flexible joint 5 attached. An irregularly shaped sealing material 5C is pressure-bonded to the waterway surfaces 4 on both sides of the waterway joint 3 with a plate-like body 5B, and the space between the waterway surface 4 and the plate-like body 5B is filled to stop water.

  The plate-like body is required to be rigid, but can be designed with various materials, shapes, combinations, etc. without any particular limitation. In consideration of workability and applicability to various water-stopping objects, steel plates, plastic plates, fiber-reinforced plastic plates, resin-coated wood boards, and the like are preferable.

  The plate-like body is preferably fixed to the waterproof sheet by adhering the resin-coated plate-like body on which soft vinyl chloride resin is laminated, in particular, the resin surface of the resin-coated steel sheet to the waterproof sheet. The steel plate only needs to have a resin layer on at least the waterproof sheet bonding surface, but if the entire surface is covered with resin, rust prevention or the like is also good. Preferably, the plate-like body has reinforcing portions such as a folded portion of a steel plate and a laminated portion of homogeneous or heterogeneous members at both ends in the width direction.

  FIG. 4 shows an example of the laminated plate-like body 7. The plate-like body 7A is covered with a waterproof material layer 7B of the same quality as the thermoplastic elastomer waterproof sheet. The plate-like body 7A is preferably made of a material that hardly corrodes, such as a galvanized steel plate or a stainless steel plate.

  When fixing the waterproof sheet and the plate-shaped body, when the flexible joint is fixed to the water-stop target, the waterproof sheet and the plate-shaped body must be separated to cause problems such as water leakage. However, as long as such a problem does not occur, various means and methods can be used. Although not particularly limited, a coating layer is provided in advance on at least one surface of the plate-like body, and this and the waterproof sheet are made of the same thermoplastic elastomer material, for example, a soft vinyl chloride resin, and are heat-sealed, welded, and bonded. It is possible to firmly bond each other with an agent or the like. When the thermoplastic elastomer is a soft vinyl chloride resin, strong adhesion can be obtained even by solvent welding with tetrahydrofuran. Preferably, both heat fusion and solvent welding are adhesion of the same or equivalent materials, which are sufficiently strong and excellent in durability.

  FIG. 5 shows a waterproof sheet member 8 having a flexible portion, which is a steel sheet with a waterproof sheet. Laminated steel plates 10 are arranged on both sides in the width direction of the back surface portion of the waterproof sheet 9, and flexible portions 11 are provided between the laminated steel plates 10.

  The waterproof sheet may be made of a thermoplastic elastomer material, but is preferably made of a material selected from the group consisting of a soft vinyl chloride resin elastomer, an olefin elastomer, a styrene elastomer, a urethane elastomer, and the like. The elongate is not particularly limited to a certain shape, and means that it has a length that matches the joint to be water-stopped and has a width that allows water-stopping to be sufficiently exerted.

  Adhesion between dissimilar materials using an adhesive is likely to cause problems such as low adhesion and durability, and is often unsuitable for adhering water repair joints. Be careful when using it. Since the waterproof sheet fixes the plate-like body on both sides of the water channel joint to the water channel surface with fixing means such as a fastener from the surface, if the waterproof sheet and the plate-like body are sufficiently fixed at that time, Watertightness at the waterway joint is maintained.

  In order to further ensure water tightness, in addition to using the same or equivalent material, the plate fixed on both sides of the waterway joint by adjusting the type and number of fixing means such as fasteners The adhesive and the thermoplastic elastomer waterproof sheet are firmly bonded and fixed. Even if the joint spacing is widened and a tensile force is generated in the thermoplastic elastomeric waterproof sheet, the thermoplastic elastomeric waterproof sheet is firmly adhered and fixed to the plate with a fastener or the like, and does not peel off. Since the solid body is mechanically fixed to the water channel surface with a stopper, the sealing material filling the space between the plate-shaped body and the water channel surface is not loaded, and stable water stopping can be continued. .

  The amorphous sealing material is not particularly limited, but is a material selected from the group consisting of urethane-based, silicone-based, modified-silicon-based, epoxy-based, acrylic-based, butyl rubber-based, thiocol-based and other irregular-shaped caulking materials, sealing materials, etc. Can be used. The amorphous sealing material is a component of a part of the flexible joint, and the flexible joint is configured and used in combination with the amorphous sealing material together with the waterproof sheet, the plate-like body, and the fastening member.

  The fastening member is not particularly limited, and various means can be used by various methods. It can be selected from the group consisting of screws such as screw screws, post-construction anchors such as metal expansion anchors, adhesive anchors, and Fischer plugs.

  In addition to fixing the waterproof sheet and the plate-like body, the flexible joint is equipped with an indeterminate sealing material on the side of the plate-shaped body to be sealed, even if displacement occurs in the joints or between them, Since the thermoplastic elastomer-based waterproof sheet at the flexible portion between the plate-like bodies expands and contracts, watertightness at the joint can be maintained. Moreover, even if a flexible joint is provided from the inside, fluids such as water flowing in the water to be sealed, fluids and the like can smoothly flow on the surface of the waterproof sheet continuous on both sides of the joint.

  The flexible joint as described above can be used for repairing joint parts, and in that case, particularly, efficient workability and remarkable water tightness are exhibited. This is because water resistance and flexibility are exhibited by the waterproof sheet member, water leakage due to irregular shaped caulking material that adheres to the surface of the water to be sealed due to deterioration over time, especially the irregularities of the water channel surface, etc. This is because it can be prevented. Of course, the flexible joint can be used for water-stopping the joint portion even in a newly-provided rough surface water channel or the like, even from the outside of the water-proof material.

  The flexible joint can be used for a water-stopping construction method in which a water-stopping construction is carried out, for example, by refurbishing a waterway joint using a flexible joint. In the waterproofing method, the flexible joint can have the above-described configuration, and particularly includes a thermoplastic elastomer-based waterproof sheet, a plate-like body, an amorphous sealing material, and a fastening member. .

  The thermoplastic elastomer-based waterproof sheet and plate-like body, in particular, the waterproof sheet and the steel plate are preliminarily stretched in the longitudinal direction of the sheet of the waterproof sheet, and the thermoplastic elastomer system of the laminated steel sheet on the back surfaces at both ends in the width direction of the waterproof sheet. A waterproof sheet member composed of a waterproof sheet and a steel plate, to which the surface coated with the waterproof material is bonded, can be produced and used.

  In order to construct the waterproof sheet member as described above on the waterway joint, an amorphous sealing material is placed at the lower part of the steel plate on one and the other waterway surfaces, and the flexible part between the steel plates is used as the joint. The waterproof sheet member is positioned by crimping, and is a fixing member that penetrates the waterproof sheet, steel plate and amorphous sealing material from the surface of the flexible joint waterproof sheet, and fixes it to the waterway surface. Fix to the surface of the waterway and stop the waterway joint.

  FIG. 6 shows an example of a method for constructing a flexible joint, in which an irregularly shaped sealing material 13 is placed on the water channel surface 4 on both sides of the water channel joint 3 inside the steel plate 12 with waterproof sheet, particularly inside the steel plate 12B. The state where it is placed using a caulking gun or the like is shown. The steel sheet 12 with a waterproof sheet is obtained by bonding laminated steel sheets 12B to both ends in the width direction of the waterproof sheet 12A, and has a flexible part 12C. After placing the irregular sealing material 13, the flexible portion 12C of the steel plate 12 with sheet is crimped to the waterway joint 3.

  FIG. 7 shows a process of drilling the pilot hole 15 with the hammer drill 14 in the water channel surface 4 through the waterproof sheet 12A and the steel sheet 12B of the steel sheet 12 with sheet and the irregular sealing material 13. At this time, the amorphous sealing material 13 is not cured. FIG. 8 shows a process of inserting the fastener 16 into the pilot hole 15 opened in FIG. 7 and fixing the flexible joint, particularly the waterproof sheet 12A. The fastening tool is an example of the above-described fastening member, and may be a screw such as a screw.

  FIG. 9 shows a water stop structure 18 to which a flexible joint 17 is attached, and shows a state in which the water channel surface 19 is opened at the water channel joint 20 and has a level difference. In addition, a larger uneven state is formed on the water channel surface 19, and even in this case, the flexible joint 17 exhibits sufficient water tightness. Further, at both end portions of the flexible joint 17, inclined portions 17F made of an irregular sealing material 17C capable of smoothing the flow of water with respect to the step between the water channel surface 19 and the flexible joint 17 are formed. Like the flexible joint described above, the flexible joint 17 includes a waterproof sheet 17A, a plate-like body 17B, an irregular shaped caulking material 17C, and a fastening member 17D, and forms a flexible portion 17E.

  As is clear from the above description, the waterproof sheet member composed of an elongated waterproof sheet and at least one pair of elongated rigid plate bodies fixed at both ends in the width direction is an irregular sealing material at a water leakage location such as a waterway joint. By fixing via, it is possible to provide sufficient water-stopping, enable efficient construction, and can also be used to provide various water-stopping structures excellent in workability and durability in water-stopping objects.

It is a perspective view of one example of a water stop structure. FIG. 2 is a cross-sectional view of the water stop structure of FIG. FIG. 2 is a partial cross-sectional view of the water stop structure of FIG. (a) is a cross-sectional view of an example steel plate, and (b) is a top view of the steel plate of (a). (a) is a cross-sectional view of one example of a waterproof sheet laminated steel sheet, and (b) is a top view of the waterproof sheet laminated steel sheet of (a). It is a fragmentary sectional view which shows the process of the water stop construction method of one example. It is a fragmentary sectional view showing other processes of a still water construction method. It is a fragmentary sectional view showing other processes of a still water construction method. It is a fragmentary sectional view of the displacement state of one example of a water stop structure. It is sectional drawing which shows the conventional water stop structure of an example. It is a perspective view which shows the conventional water stop structure of the other example.

Explanation of symbols

1 Water stop structure
2 waterway
3 joints
4 Waterway surface
5 Repairable joint
5A tarpaulin
5B Rigid plate
5C irregular sealing material
5D fastening member
5E flexible part

Claims (5)

  A flexible joint for joint water sealing, comprising: an elongated thermoplastic elastomer-based waterproof sheet; at least one pair of elongated rigid plate-like bodies; an irregular sealing material; and a fastening member. The waterproof sheet is fixed to the inner surface of the waterproof sheet in the longitudinal direction with the side surfaces spaced apart from each other, a flexible portion made of the waterproof sheet is formed between the plate bodies, and the amorphous sealing material is formed of the plate bodies. Provided in the longitudinal direction inside, the fastening member penetrates the waterproof sheet, the plate-like body and the irregular sealing material, and is fixed to the surface of the water to be sealed on both sides of the joint, Flexible joint.   The waterproof sheet is a soft vinyl chloride resin, each plate-like body is a steel plate, and the steel plate adheres the resin surface of a resin-coated steel plate on which soft vinyl chloride resin is laminated to the waterproof sheet. 2. The flexible joint according to claim 1, wherein the flexible joint is fixed to the waterproof sheet.   3. The flexible joint according to claim 1, wherein the plate-like body has reinforcing portions at both ends in the width direction.   A waterproof structure in which a joint is stopped by a flexible joint, and the flexible joint includes an elongated thermoplastic elastomer-based tarpaulin, at least one pair of elongated rigid plate-like bodies, an irregular sealing material, and a fastening Each plate-like body is fixed to the inner surface of the waterproof sheet in the longitudinal direction with the side surfaces spaced apart from each other, and a flexible portion made of the waterproof sheet is formed between the respective plate-like bodies. A fixed sealing material is provided in the longitudinal direction inside each plate-like body, and the fastening member penetrates the waterproof sheet, the plate-like body and the irregular sealing material, and the surface of the water to be sealed on both sides of the joint. Water-stop structure, characterized by being fixed to In stopping the joint,
(a) providing an elongated thermoplastic elastomer-based waterproof sheet for a flexible joint, at least one pair of elongated rigid plate-like bodies, an irregular sealing material, and a fastening member;
(b) a step of preparing a flexible joint, wherein each plate-like body is fixed to the inner surface of the waterproof sheet in the longitudinal direction with the side surfaces spaced apart from each other, and the waterproof sheet is provided between the plate-like bodies. Forming a flexible part comprising:
(c) providing the irregular sealing material in the longitudinal direction inside each plate-like body; and
(d) The fixing member includes a step of passing the waterproof sheet, the plate-like body, and the irregular sealing material, and fixing the fixing member to the surfaces to be sealed on both sides of the joint. Water method.

Images