JP2010275760A - Structure and method for repairing flexible water cut-off joint - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure and a method for repairing a flexible water cut-off joint in a short time without repairing the surface of concrete while leaving the existing flexible water cut-off joint as it is. <P>SOLUTION: New mounting frame bodies 22 for mounting a flexible water cut-off joint 21 for repair are fixed to internal or external hollow structures 11 of a joint part through elastic sealing materials 25 to form spaces 26 partitioned by the elastic sealing material 25, and a filler 24 is injected into these spaces to secure water cut-off performance without repairing the surfaces of the hollow structures such as the surface of concrete. The new flexible water cut-off joint can thereby be easily mounted between the mounting frame bodies facing each other with the joint part held in between while leaving the existing flexible water cut-off joint as it is. Compared with the case of cutting off water by carrying out caulking treatment of the mounting frame bodies, the filler can be filled immediately after fixing the mounting frame bodies, and water can be surely cut off in a short time to attain construction. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a repair structure and a repair method for a flexible water-stopping joint, and to a flexible water-stopping joint for seismic resistance and water-stopping of hollow structures such as caves, water and sewage systems, subways and joint grooves. This is suitable for repairing after displacement occurs.

  As one of the joints of hollow structures (e.g., box culverts, segment rings, propulsion pipes, culverts, etc.) constructed in the conventional underground, a cylindrical shape is formed at the opposite ends of a pair of cylindrical hollow structures facing each other. The both ends of the flexible waterproof joint formed in the shape of a short cylinder made of an elastic body such as rubber or synthetic resin are water-tightly attached to the inner peripheral surface of the frame body. There is one that absorbs the relative displacement of the hollow structure due to uneven settlement of the water and stops water between these structures.

  As an example of a flexible water-stopping joint of a culvert that is such a hollow structure, there is one disclosed in Patent Document 1, and as shown in FIG. Attaching mounting frames g and g having flanges h and h and end surface portions i and i along the stepped portions b and b formed on the inner peripheral surface of the end portions of the opposite culverts a and a, respectively. And is formed in a short cylindrical shape made of an elastic material such as rubber or synthetic resin across the flanges h, h along the stepped portions b, b of the mounting frames g, g, and on the inner peripheral side in the center. A flexible waterproof joint e having a bulging annular constriction portion and further having flange portions d and d extending from both sides of the constriction portion is fixed at the flange portions d and d, and the step portions b and b are fixed. And in the axial direction of the flexible waterproof joint e in the space formed between the flexible waterproof joint e. It disposed a protective material to prevent the bulging deformation are constituted. Here, k is a joint material interposed on the outer peripheral side of the joint.

  If the underdrains a and a connected by such a flexible water-stopping joint e are displaced by an earthquake or the like, it is not preferable to use them as they are, and the flexible water-stopping joint will be used for the next earthquake or the like. It is necessary to prepare and return to normal.

  As a method of repairing such a flexible water-stopping joint, a new mounting frame is prepared in one culvert of a pair of opposing culverts, and the flexible water-stopping joint that has been displaced is removed. It is possible to eliminate displacement by welding to the original mounting frame, and to attach a new flexible joint across the joint between this new mounting frame and the other original mounting frame. It is done.

Japanese Patent Publication No. 63-58982

  However, depending on the state of the culvert where displacement has occurred, the flexible waterproof joint may not be easily removed, and a new mounting frame can be welded using the mounting frame of one culvert. There is a problem that you can not. Moreover, in this case, it is necessary to fix the new mounting frame by placing anchor bolts in the concrete culvert, and to stop the water between the concrete surfaces. Many processes such as rebar anchor placement, rebar assembly, formwork installation, concrete placement / curing, formwork removal, etc. are required, which takes a lot of time and effort. There is a problem that it takes a considerable period of time to complete the repair, and repair and replacement cannot be performed in a short time.

  The present invention has been made in view of the above-described problems of the prior art, and repairs a flexible waterproof joint in a short time without modifying the concrete surface while leaving the existing flexible waterproof joint. It is an object of the present invention to provide a repair structure and repair method for a flexible water-stop joint.

  The repair structure for a flexible waterproof joint according to claim 1 of the present invention that solves the problems of the prior art is an annular flexible structure made of a flexible material straddling the joints at the ends of the opposite hollow structures. A structure for repairing a flexible water-stopping joint with a fixed water-stopping joint attached thereto, and a flexible stopper for repairing via an elastic sealing material inside or outside the joint where the existing flexible water-stopping joint is installed The mounting frame for mounting the water joint is fixed opposite to each other, and the hollow structure and the mounting frame are bonded to a space partitioned by the elastic sealing material between the mounting frame and the hollow structure. It is characterized in that it is configured by filling and solidifying a filling material that stops water, and attaching the repair flexible water-stopping joint between mounting frames facing each other across the joint.

  The repair structure for a flexible waterproof joint according to claim 2 of the present invention comprises, in addition to the structure according to claim 1, the mounting frame body in an annular shape by a segmented frame member that can be divided into a plurality of connections. It is characterized by doing.

  Furthermore, in addition to the structure of Claim 1 or 2, the repair structure of the flexible water-stop joint according to Claim 3 of the present invention includes an adjustment frame member that adjusts the displacement generated in the joint portion on the mounting frame body. The flexible water-stopping joint for repairing is attached and configured.

  Moreover, in addition to the structure in any one of Claims 1-3, the repair structure of the flexible water-stop joint of Claim 4 of this invention is in the space between the said attachment frame body and a hollow structure. It is characterized in that a plurality of communicating screw holes are formed so that the filler can be filled and the filling can be confirmed.

  Furthermore, in the repair method for a flexible waterproof joint according to claim 5 of the present invention, an annular flexible waterproof joint made of a flexible material is attached across the joints at the ends of the opposite hollow structures. When repairing while leaving the flexible waterproof joint, the flexible waterproof joint for repair is attached to the inside or outside of the joint where the existing flexible waterproof joint is installed via an elastic sealant. Filling to fix the frame body opposite to each other, and bond the hollow structure and the mounting frame body in a space partitioned by the elastic sealing material between the mounting frame body and the hollow structure After the material is filled and solidified, a flexible waterproof joint for repair is attached between the mounting frames facing each other across the joint.

  According to a sixth aspect of the present invention, in addition to the structure of the fifth aspect, the mounting frame body is constituted by a segmented frame member that can be divided into a plurality of segments and connected to the ring. It is characterized in that it is fixed while being connected to.

  According to a seventh aspect of the present invention, in addition to the structure of the fifth or sixth aspect, an adjustment frame member for adjusting the displacement generated in the joint portion is provided on the mounting frame body. The above-described flexible waterproof joint for repair is attached to the above.

  Furthermore, the repair method of the flexible waterproofing joint of Claim 8 of this invention adds to the structure in any one of Claims 5-7, in the space between the said attachment frame body and a hollow structure. A plurality of screw holes that communicate with each other are formed, filled with a filler, and after the filling state is confirmed, the screw holes are closed.

  According to the repair structure for a flexible waterproof joint according to claim 1 of the present invention, the annular flexible waterproof joint made of a flexible material is attached across the joints at the ends of the opposing hollow structures. A mounting structure for attaching a flexible waterproof joint for repair via an elastic sealing material inside or outside the joint where the existing flexible waterproof joint is installed. A filler that fixes the body opposite to each other, and adheres the hollow structure and the mounting frame to a space partitioned by the elastic sealing material between the mounting frame and the hollow structure. Since the above-mentioned flexible waterproof joint for repair is attached between the mounting frames facing each other across the joint, a new mounting frame for attaching the flexible waterproof joint for repair is elastically sealed. By fixing it to the hollow structure inside or outside the joint via a material, A space partitioned by a filler material can be formed, and by filling the space into this space, water sealing can be secured without repairing the surface of a hollow structure such as a concrete surface. A new flexible water-stopping joint can be easily attached between the mounting frame bodies facing each other with the joint portion interposed therebetween while leaving the anti-waterproof joint.

  Thereby, compared with the case where water is stopped by caulking the mounting frame, after the mounting frame is fixed, the filler can be filled immediately, and water can be reliably stopped in a short time.

  According to the repair structure for a flexible waterproof joint according to claim 2 of the present invention, the mounting frame body is formed in an annular shape by a segmented frame member that can be divided and connected to a plurality of segments. The attachment frame body can be installed by connecting them in an annular shape, and can be constructed more easily, the individual members can be reduced in weight, and construction can be performed without using heavy machinery.

  Furthermore, according to the repair structure of the flexible waterproof joint according to claim 3 of the present invention, the flexible waterproof water for repair is provided on the mounting frame via the adjustment frame member that adjusts the displacement generated in the joint portion. Since the joint is attached, the adjustment of the displacement can be simplified by using the adjustment frame member separately from the attachment frame body, and a large number of attachment frame bodies of the same specification are prepared, and the adjustment frame member corresponding to the displacement is prepared. It is sufficient to prepare a small number and it can be manufactured in a short time.

  According to the repair structure for a flexible waterproof joint according to claim 4 of the present invention, the mounting frame is formed with a plurality of screw holes communicating with the space between the hollow structure and filled with a filler. Since it is configured to be able to be confirmed and to be filled, the filler can be filled using the screw hole, and the filling state can be confirmed by the filler overflowing from the screw hole, and water can be surely stopped.

  Furthermore, according to the repairing method for a flexible water-stopping joint according to claim 5 of the present invention, an annular flexible water-stopping joint made of a flexible material straddling the joints at the ends of the opposite hollow structures. When repairing while leaving the flexible water-stopping joint attached, the flexible water-stopping joint for repair is placed inside or outside the joint where the existing flexible water-stopping joint is installed via an elastic sealant. The mounting frame body to be attached is fixed opposite to each other, and the hollow structure and the mounting frame body are bonded to a space partitioned by the elastic sealing material between the mounting frame body and the hollow structure to stop water. After filling and solidifying the filling material to be repaired, the flexible waterproof joint for repair is attached between the mounting frames facing each other across the joint, so a new mounting frame for attaching the flexible waterproof joint for repair The body is fixed to the hollow structure inside or outside the joint through an elastic sealant. By doing so, it is possible to form a space partitioned by an elastic sealing material, and by filling the space with this filler, it is possible to ensure water-stopping without repairing the surface of a hollow structure such as a concrete surface. It is possible to easily attach a new flexible waterproof joint between the mounting frame bodies facing each other with the joint portion interposed therebetween while leaving the existing flexible waterproof joint.

  Thereby, compared with the case where water is stopped by caulking the mounting frame, after the mounting frame is fixed, the filler can be filled immediately, and water can be reliably stopped in a short time.

  According to the repair method for a flexible waterproof joint according to claim 6 of the present invention, the mounting frame body is composed of segmented frame members that can be divided and connected to each other, and are fixed while being connected in an annular shape. As a result, it is possible to install the attachment frame body by connecting the segment type frame members in an annular shape, making it easier to construct, reducing the weight of each member, and constructing without using heavy machinery can do.

  According to the method for repairing a flexible waterproof joint according to claim 7 of the present invention, the flexible waterproof water for repair is provided on the mounting frame via an adjustment frame member that adjusts the displacement generated in the joint portion. Since the joint is attached, the adjustment of the displacement can be easily performed by using the adjustment frame member separately from the attachment frame body, and a large number of attachment frame bodies of the same specification are prepared, and the adjustment frame member corresponding to the displacement is prepared. It is sufficient to prepare a small number, and it can be manufactured and installed in a short time.

  Furthermore, according to the repair method for a flexible waterproof joint according to claim 8 of the present invention, the mounting frame body is formed with a plurality of screw holes communicating with the space between the hollow structure and filled with a filler. In addition, since the screw hole is closed after confirming the filling state, the filler can be filled using the screw hole, and the filling state can be confirmed by the filler overflowing from the screw hole. Water can be reliably stopped by closing the screw hole.

It is a cross-sectional view concerning one Embodiment of the repair structure of the flexible waterproof joint of this invention. It is the schematic perspective view which extracted the attachment frame concerning one Embodiment of the repair structure of the flexible waterproof joint of this invention. It is a schematic explanatory drawing of the connection state of the attachment frame concerning one Embodiment of the repair structure of the flexible waterproof joint of this invention, and the attachment state from which an elastic sealing material differs. It is a schematic explanatory drawing of injection | pouring and filling of the filler concerning one Embodiment of the repair structure of the flexible waterproof joint of this invention. It is a cross-sectional view concerning other one Embodiment of the repair structure of the flexible waterproof joint of this invention. It is a schematic perspective view of the conventional hollow structure (underdrain), and sectional drawing of the bottom part of the attachment state of a flexible waterproof joint.

Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
An existing flexible waterproof joint mounting structure to which the flexible waterproof joint repair structure 20 is applied is a hollow structure 11, for example, a box culvert type underdrain 11, and concrete is placed on a rubble base. The cross section is formed in a rectangular shape, and stepped portions 12 and 12 for attaching the flexible waterproof joint 20 are formed on the inner peripheral surface of the joint portion 11a at the ends of the opposite culverts 11 and 11, respectively. In the case where the annular space formed by the portion 12 is used as a joint installation space and the existing flexible waterproof joint 13 is installed (in the case shown in FIG. 6), the existing flexible waterproof joint in which displacement has occurred In the case where a new flexible waterproof joint 21 for repair is installed in the interior (inner peripheral side) and repair is performed while leaving 13, the opposite culvert 11 which is the hollow structure 11, on the contrary, 11 to the outer peripheral surface of the end portion of each Step portions 12 and 12 are formed, and an annular space formed by these step portions 12 is used as a joint installation space, and an existing flexible waterproof joint 13 is installed. The present invention can be applied to any case where a new flexible waterproof joint 21 for repair is installed on the outside (outer peripheral side) and repaired with the existing flexible waterproof joint 13 remaining.

  In addition, as described in the conventional example, the existing flexible waterproof joint 13 has the outer frame plate 14 having an L-shaped cross section in an annular shape on the end surface 12 a of each stepped portion 12 embedded in the underdrain 11. A nut 16 is attached to the anchor member 15 via a seal member made of a rubber washer and a butyl rubber sheet, and a protective member 17 is disposed outside the nut 16.

  In this flexible waterproof joint repair structure 20, as shown in FIG. 1, a repair flexible joint 21 is newly installed outside the existing flexible waterproof joint 13 of the culvert 11, 11 that is a hollow structure. An embodiment in the case of repair will be described.

  In the repair structure 20 of the flexible waterproof joint, a repair mounting frame 22 is attached to the outside of the joint portion 11a of the undercarriage 11 and 11, which is a hollow structure.

  As shown in FIG. 2, the repair mounting frame 22 includes a segment-type frame member 22 a whose cross-sectional shape is L-shaped and divided in an annular direction to be connectable. It is composed of a mounting plate portion 22b for attaching the flexible waterproof joint 21 for repair and a fixing plate portion 22c fixed to the surface of the underdrain 11, and flange portions 22d are provided at both ends of the frame member 22a so as to be connected in an annular shape. The reinforcing plate 22e is attached to the middle part.

  The mounting plate portion 22b of the frame member 22a of the mounting frame body 22 has a height corresponding to the displacement generated in the undercarriages 11 and 11 (see FIG. 1), and is mounted so as to face each other. Bolt holes 22f are formed in advance to attach the flexible waterproof joint 21 at a constant pitch so that the flexible waterproof joint 21 can be attached without displacement.

  Further, the fixing plate portion 22c of the mounting frame 22 is formed with a bolt hole 22g for fixing to the anchor bolt 23 to be placed on the undercarriage 11, and a filler 24 that adheres to the undercarriage 11 and stops water. A plurality of screw holes 22h are formed to fill or to check the filling state of the filler 24, and at least two locations near the flange portions 22d at both ends are provided.

  In the repair method performed using such a mounting frame 22 for repairing, as shown in FIG. 3, one mounting frame 22 is placed with the fixed plate portion 22c facing upward, and each fixed plate portion 22c An elastic sealing material 25 is attached along the periphery, and a plurality of sealed and independent spaces 26 can be formed between the fixing plate portion 22c to which the elastic sealing material 25 is attached and the surface of the underdrain 11 (FIG. 3 ( b)), or one or a plurality of continuous spaces by attaching elastic seal members 25 to both side edges of the mounting frames 22 that are connected to each other by using flange portions 22d. 26 can be formed (see FIG. 3C).

  For this reason, as the elastic sealing material 25, for example, an elastic body such as vulcanized rubber having a band shape is used. By increasing the thickness of the elastic sealing material 25, the elastic sealing material 25 is compressed at the time of attachment and the surface of the culvert 11 Even if unevenness of about ± 3 mm occurs on the surface of the culvert 11 by using a rubber having a thickness of about 13 mm and compressing it to about 4 mm at the time of fixing, for example, It has been confirmed that this effect can be absorbed and a sealed space can be secured.

  As shown in FIGS. 1 and 4, the attachment frame body 22 to which the elastic seal material 25 is attached is arranged and placed so that the attachment plate portions 22 b face each other with the joint portions 11 a of the undercarriages 11 and 11 interposed therebetween. The bolt holes 22g of the fixing plate portion 22c are inserted into the anchor bolts 23, and are fixed by tightening with the nuts 23a. By doing so, a space 26 sealed with an elastic sealing material 25 can be formed between the fixing plate portion 22 c of the mounting frame 22 and the surface of the underdrain 11, and this space 26 is used as a mold for filling the filling material 24. It can be.

  A screw hole 22h formed in the fixing plate portion 22c communicates with the space 26 of the fixing plate portion 22c of the mounting frame 22 attached to the outside of the underdrain 11 in this manner, and grout is made using one of the screw holes 22h. A material or a filler 24 such as an epoxy resin is filled. This filling material 24 needs to fill the space 26 without any gaps, so that the mounting frame 22 needs to be firmly joined to the undercarriage 11 to be in a water-stopped state, and is in an open state separated from the screw hole 22h used for filling. By making the filler 24 leak from the screw hole 22h, it is confirmed that the filler 24 is filled without air.

  Before filling the filler 24, the elastic seal material 25 is compressed to a state where the filler 24 does not leak from the surroundings. After filling, the nut 23a is further tightened on the anchor bolt 23 to further tighten the elastic seal material 25. By compressing and narrowing the space 26, the space can be more reliably filled without a gap.

  In this way, the filling material 24 is filled in the space 26 partitioned by the surface of the culvert 11, the fixing plate portion 22c of the mounting frame 22 and the elastic sealing material 25 without any gap, and after confirming this, the plug 27 is inserted into the screw hole 22h. Install and seal.

  The installation of the mounting frames 22 and 22 to the underdrains 11 and 11 and the filling of the filler 24 are performed by sequentially filling the fillers 24 after the fixing is completed while the mounting frames 22 and 22 are assembled in the annular direction. There is no need to caulk the end of the mounting frame and wait until the curing is completed, and it is not necessary to fill the filler as in the conventional case. 24 can be filled immediately and can be applied in a short time.

  After the mounting frame 22 is assembled in an annular shape in this way, the repair flexible waterproof joint 21 is disposed so as to straddle the joints 11a of the underdrains 11, 11, and in the cross-sectional shape shown in FIG. The plate-like portions 21b and 21b of the flexible waterproof water-proof joint 21 having U-shaped expansion and contraction portions 21a and L-shaped plate-like portions 21b at both ends are attached to the attachment plate portions 22a of the attachment frame body 22. Fastened in a sealed state through a rubber washer, a butyl rubber sheet, and a protective member 29 as a sealing material through bolts and nuts 28 inserted into the bolt holes 22f, and the repair flexible waterproof joint 21 is attached in a substantially short cylindrical shape. Repair is completed.

  According to the repair structure 20 and the repair method of such a flexible water-stopping joint, even if it is difficult to remove the existing flexible water-stopping joint 13, the repairing flexible frame is used by using the mounting frame 22 for repair. The waterproof joint 21 can be installed, and construction can be performed without using a firearm such as welding for repair.

  Moreover, according to the repair structure 20 and the repair method of this flexible waterproof joint, while connecting the segment-type divided | attached attachment frame 22 to the exterior or inside of the undercarriage 11 and 11 which are existing hollow structures, By repairing, the flexible waterproof joint 21 for repair can be constructed, and by subdividing each member, equipment such as heavy machinery can be constructed as unnecessary.

  Furthermore, according to the repair structure 20 and the repair method of the flexible waterproof joint, the attachment frame body 22 with the elastic seal material 25 attached to the undercarriage 11, 11 which is an existing hollow structure is installed, and the surface of the undercarriage 11 Since a sealed space 26 is formed by an elastic seal material 25 between the mounting frame body 22 and the mounting frame body 22, and this space 26 is used as a mold frame and filled with a filler 24 such as a grout material or an epoxy resin, this is a conventional method. Compared to the case where the mounting frame body is subjected to the caulking process, the water can be surely stopped, the curing of the caulking process is not required, and the filler 24 can be filled immediately after the mounting frame body 22 is installed. Can be shortened. In addition, the elastic sealing material 25 itself has a water-stopping effect, can improve water-stopping performance as compared with the conventional method, can be applied as a repair structure under high water pressure conditions, and the water pressure conditions are the same as before. If so, the number of anchor bolts 23 can be reduced.

  Furthermore, according to the repair structure 20 and the repair method for the flexible water-stopping joint, by changing the manufacturing dimension of the mounting frame body 22, the repair-use flexible stopper is adapted to any residual displacement of the existing hollow structure. The water joint 21 can be constructed.

  In addition, as shown in FIG. 5, as the repair structure 20 </ b> A and the repair method for the flexible waterproof joint, an adjustment frame member 30 having a height corresponding to the displacement is prepared in the mounting frame body 22 and is welded to the mounting frame body 22 in advance. By attaching a large number of mounting frame bodies 22 of a certain size by attaching them in a sealed state, etc., and adjusting the frame member 30 in accordance with this, the mounting frame body 22 is manufactured. The efficiency can be improved, and even a large residual displacement can be subdivided. Moreover, in the cross-sectional shape shown in FIG. 5 as the flexible waterproof joint 21A for repair, the expansion / contraction part 21Aa of the intermediate part is formed in a U-shape with the lower part opened, and a flat plate-like part 21Ab is continuous with the expansion / contraction part 21Aa. By adopting such a shape, the plate-like plate-like portion 21Ab can be arranged in parallel with the outer surface of the undercarriage 11, 11 that is a hollow structure, and compared with the flexible waterproofing joint 21 for repair already described. Can cope with large displacement.

  In addition, the shape of the flexible waterproof joint for repair is not limited to that described in the above two embodiments, and may be other shapes such as a configuration in which the expansion / contraction portion has a plurality of convex shapes.

  Moreover, according to the repair structure 20 and the repair method of this flexible water-stopping joint, the space of the flexible water-stopping joint 21 for repair can be constructed | assembled with the attachment frame 22, and it can construct from the outer side of a hollow structure. is there. That is, when assembling a flexible waterproof joint to the outer peripheral surface of a conventional existing structure, it is necessary to join the flexible waterproof joint on site, and since there is virtually no space for the joining work, it cannot be performed. However, because it is a method of assembling the mounting frame with a split structure, facilities such as heavy machinery are not required, and space can be secured and construction can be performed from the outside.

10 Installation structure of existing flexible waterproof joint 11 Underdrain (hollow structure)
11a Joint part 12 Step part 12a End face 13 Existing flexible waterproof joint 14 Outer frame plate 15 Anchor member 16 Nut 17 Protection member 20 Repair structure 21 of flexible waterproof joint 21 Flexible waterproof joint 21a for expansion and contraction 21b Plate -Shaped portion 22 Mounting frame 22a for repair Segmental frame member 22b Mounting plate portion 22c Fixing plate portion 22d Flange portion 22e Reinforcement plate 22f Bolt hole 22g Bolt hole 22h Screw hole 23 Anchor bolt 23a Nut 24 Filler 25 Elastic seal material 26 space (filler formwork)
27 Plug 28 Bolt / Nut 29 Protection member 30 Adjustment frame member

Claims (8)

A repair structure for a flexible waterproof joint, in which an annular flexible waterproof joint made of a flexible material is mounted across the joints at the ends of the opposite hollow structures,
Fixing the mounting frame bodies for mounting the flexible water-stopping joints for repairing inside or outside the joints where the existing flexible water-stopping joints are installed via elastic sealing materials, facing each other. The space between the hollow structure and the hollow structure is partitioned by the elastic sealing material, and the filler is bonded and solidified by bonding the hollow structure and the mounting frame, and is opposed across the joint. A repair structure for a flexible waterproof joint, wherein the flexible waterproof joint for repair is attached between mounting frames.   2. The repair structure for a flexible waterproof joint according to claim 1, wherein the mounting frame body is formed in an annular shape by a segmented frame member that is divided into a plurality of pieces and can be connected.   The flexible waterstop according to claim 1, wherein the repairing flexible waterstop joint is attached to the mounting frame body via an adjustment frame member that adjusts a displacement generated in the joint. Joint repair structure.   A plurality of screw holes that communicate with a space between the mounting structure and the hollow structure are formed in the mounting frame so that the filler can be filled and the filling can be confirmed. Repair structure of the described flexible waterproof joint. When repairing while leaving the flexible waterproof joint with the annular flexible waterproof joint made of a flexible material straddling the joints at the ends of the opposite hollow structures,
Fixing the mounting frame bodies for mounting the flexible water-stopping joints for repairing inside or outside the joints where the existing flexible water-stopping joints are installed via elastic sealing materials, facing each other. After the solid structure is filled and solidified with a filler that adheres the hollow structure and the mounting frame to the water and is solidified in a space partitioned by the elastic sealing material between the hollow structure and A repair method for a flexible waterproof joint, wherein a flexible waterproof joint for repair is attached between mounting frames facing each other.   6. The method for repairing a flexible waterproof joint according to claim 5, wherein the mounting frame is constituted by a segmented frame member that can be divided into a plurality of parts and can be connected while being annularly connected.   The flexible waterstop according to claim 5 or 6, wherein the flexible waterstop joint for repair is attached to the attachment frame body via an adjustment frame member that adjusts a displacement generated in the joint portion. How to repair joints.   A plurality of screw holes communicating with a space between the mounting structure and the hollow structure are formed, the filler is filled, and after confirming the filling state, the screw holes are closed. The repair method of the flexible waterproof joint in any one of Claims 5-7.

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