JP3890059B2 - Block body for channel facility repair - Google Patents

Description

The present invention also relates to the channel facility repair for the block body.

  When pipes such as sewage pipes buried in the ground have deteriorated, a pipe lining method for repairing the pipes by lining the inner peripheral surface without excavating the pipes from the ground Proposed and already in practical use.

  That is, in the pipe lining method, for example, a pipe lining material constituted by impregnating a tubular resin adsorbent with an uncured thermosetting resin is inserted into a pipe line while being reversed by fluid pressure, and the pipe lining material is inserted. The pipe lining material is heated by an arbitrary method while being pressed against the inner peripheral wall of the pipe line by the fluid pressure to cure the thermosetting resin impregnated therein, thereby forming a plastic pipe in the pipe line. This is a method of repairing the road.

  In such a pipe lining method, it has been necessary to temporarily stop or bypass the flow of the service water so that the service water such as sewage does not flow to the repaired portion of the pipe.

  However, especially in the case of a large-diameter pipe, the amount of service water to be bypassed is large, so that the facility for bypassing the service water is large and the repair work is difficult.

  Therefore, as a method of repairing the pipeline while flowing service water, a cylindrical short tube whose outer diameter is smaller than the inner diameter of the pipeline is introduced from the manhole to the inlet of the pipeline, and the short tube is connected to a hydraulic jack, etc. There has been proposed a method of repairing a pipeline by repeating the operation of pressing and inserting it into the pipeline.

  However, when the above construction method is applied to a pipe having a large diameter (for example, an inner diameter of φ600 mm or more), the short pipe used in this construction method also has a large diameter. Therefore, the short pipe having the large diameter can be passed through a manhole. There was a problem that I could not.

The present invention has been made in view of the above problems, and the intended processing is a block for repairing a flow path facility capable of performing a desired repair operation while flowing service water to a large-diameter flow path facility. To provide a body .

The present invention relates to a block constituting the tube-like cylindrical body by assembling the internal surface plate that constitutes the inner circumferential surface, and an outer peripheral plate erected on the periphery of the inner surface plate together by plastic In the block facility for repairing the flow path facility formed, the reinforcing bars bent in an arc shape are attached to the outer surface of the inner surface plate in a circumferential direction by being connected to a bolt that connects the block body in the length direction of the pipe line. It is characterized by.

According to the present invention, since the reinforcing bar bent in the shape of an arc is tied to the bolt that connects the block body in the length direction of the pipe and is attached to the outer surface of the inner surface plate of the block body in the circumferential direction, An effect that restoration work with high reinforcement effect can be performed while flowing in-service water also to the road facility is obtained.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 is a side view of a block body for repairing a flow path facility according to the present invention, FIG. 2 is an external view of the block body for repairing a flow path facility (a view in the direction of arrow A in FIG. 1), and FIG. 4 is a sectional view taken in the direction of arrow C in FIG. 2, FIG. 5 is a sectional view taken along the line DD in FIG. 4, FIG. 6 is a sectional view taken along the line EE in FIG. 6 is a view similar to FIG. 6 showing a modification of the embodiment, FIG. 8 and FIG. 9 are partial cross-sectional views showing a mounting structure of a reinforcing member (rebar), FIG. 10 is a side view of the cover, and FIG. It is F line sectional drawing.

  A block facility for channel facility repair (hereinafter simply referred to as a block body) 1 according to the present invention is a part of a short tube body 2 having an outer diameter smaller than the inner diameter of the conduit 20 shown in FIGS. The short body 2 is divided into a plurality of parts (in this embodiment, divided into 5 parts), and the block body 1 includes an arc-plate-shaped inner surface plate 1A constituting an inner peripheral surface, An outer peripheral plate 1B erected outward from the periphery of the face plate 1A, a plurality of reinforcing ribs 1C for reinforcing the inner surface plate 1A and the outer peripheral plate 1B, a plurality of convex plates 1D for preventing deformation of the reinforcing rib 1C, and Box portions 1E provided at both ends in the circumferential direction are integrally formed of transparent plastic.

  Here, as the transparent plastic constituting the block body 1, vinyl chloride, ABS, Durastar polymer (trade name) or the like is used, and the block body 1 is integrally formed by an injection method using these plastics, The weight is 1 kg to 10 kg, the thickness of the inner surface plate 1A and the outer peripheral plate 1B is set to 1.0 mm to 10.0 mm, and the circumferential dimension L is larger than the width direction (length direction of the pipe line 20) dimension b. Large (L> b) is set (see FIG. 2). In addition, a flat part is partially formed in the plastic injection port portion on the inner surface of the plastic inner surface plate 1A in forming the block body 1 by the injection method. The block body 1 may be made of translucent plastic or opaque plastic. PVC, polyethylene, etc. are used as the translucent plastic, and PVC, polyester, ABS, polyethylene, polypropylene, etc. are used as the opaque plastic. .

  By the way, in the block body 1, a plurality (five in the present embodiment) of the reinforcing ribs 1 </ b> C extending in the circumferential direction (left-right direction in FIG. 2) on the inner surface plate 1 </ b> A are arranged in the width direction (up-down direction in FIG. 2). The plurality of (13 in the present embodiment) convex plates 1D are arranged in a direction perpendicular to the reinforcing ribs 1C on the inner surface plate 1A. These extend in the (width direction), and are arranged in parallel at appropriate intervals in the circumferential direction. Accordingly, in the block body 1, the inner surface plate 1A and the outer peripheral plate 1B are reinforced by a plurality of reinforcing ribs 1C and a plurality of convex plates 1D having a lattice shape, and the rigidity thereof is enhanced.

  As shown in FIG. 2, a large-diameter bolt insertion hole 3 and a small-diameter bolt insertion hole 4 are formed in the width direction (in the upper and lower directions in FIG. 2) at a portion defined by the outer peripheral plate 1B and the convex plate 1D of the reinforcing rib 1C. In a straight line in the direction). Here, as shown in FIG. 6, the inner diameter φD of the bolt insertion hole 3 formed in the outer peripheral plate 1B is set larger than the inner diameter φd of the bolt insertion hole 4 formed in the reinforcing rib 1C (φD> φd). Yes.

  As shown in FIG. 6, a space 5 cut into a V-shape is formed in each portion surrounded by the reinforcing ribs 1C of each convex plate 1D, and the V-shaped tip of this space 5 is an inner surface plate. It is in contact with 1A. In addition, as shown in FIG. 7, you may form the circular hole-shaped space 5 'which contact | connects the inner surface board 1A in each part enclosed by the reinforcing rib 1C of each convex board 1D.

  By the way, in this embodiment, as shown in FIGS. 8 and 9, a plurality of reinforcing bars 17 bent in an arc shape as a reinforcing material having a high reinforcing effect combined with the grout material are circumferentially provided on the outer surface of the inner surface plate 1A. It is arranged for a long time. That is, each reinforcing bar 17 is passed through the space 5 of each convex plate 1D of the block body 1 and attached to each convex plate 1D with an adhesive as shown in FIG. 8, or the reinforcing rib 1C as shown in FIG. Are attached to a bolt 22 (described later) that is passed through the bolt insertion hole 4 formed by a bundle wire (Bansen) 18.

  As shown in FIGS. 2 and 3, a spacer 36 is attached to the outer surface of the inner surface plate 1 </ b> A of the block body 1 to adjust the space with the inner wall of the pipe line 20 (see FIG. 22). Here, the spacer 36 is screwed through the spacer base 37 attached to the outer surface of the inner surface plate 1A of the block body 1 by bolts 22 (see FIG. 19 and FIG. 20), which will be described later, so as to be able to advance and retract. It is composed of two bolts 38.

  On the other hand, the inner surface and the outer surface of the box portion 1E formed at both ends in the circumferential direction of the block body 1 are opened, and the inside thereof is a plurality (in this embodiment) arranged in parallel in the width direction as shown in FIG. 6), the outer peripheral plate 1B forming the outer circumferential end surface thereof has a plurality (five in this embodiment) of bolt insertion holes as shown in FIGS. 7 and an air vent hole 8 are formed. In addition, as shown in FIG. 5, the air vent hole 9 is also formed diagonally in the inner wall of the outer peripheral plate 1B. Further, as shown in FIG. 5, two rectangular groove-shaped concave portions 1a are formed on one end surface in the circumferential direction of the outer peripheral plate 1B, and two convex portions 1b having a mountain-shaped cross section are formed on the other end surface over the entire width. ing.

  Also, as shown in FIG. 4, two rectangular groove-shaped recesses 1c are formed on one outer end surface (length direction outer end surface) of the outer peripheral plate 1B of the block body 1, and the other outer side of the outer peripheral plate 1B. Two end portions 1d having a mountain-shaped cross section are integrally formed on the end surface.

  Further, as shown in FIG. 1, two rectangular holes 10 are formed at both ends in the circumferential direction of both outer peripheral plates 1B of the block body 1 (only one outer peripheral plate 1B is shown in FIG. 1).

  Next, an embodiment in which the flow path facility repairing method according to the present invention constructed using the block body 1 shown in FIGS. 1 to 9 is applied to a pipeline will be described with reference to FIGS.

  12 and 13 are cross-sectional views of the pipe line showing the flow path facility repair method according to the present invention, FIG. 14 is a cross-sectional view showing a method of connecting the block bodies adjacent in the circumferential direction, and FIG. FIG. 16 is a sectional view showing a connection structure between block bodies adjacent to each other in the circumferential direction, FIG. 17 is a partial perspective view showing another form of the cover mounting structure, and FIG. 19 and 20 are broken side views showing a method of connecting ring-shaped members adjacent in the length direction, FIG. 21 is a cross-sectional view taken along the line H-H in FIG. 20, and FIG. 22 is a cylindrical body formed inside. FIG. 23 is a partial cross-sectional view of a pipe line showing an air reservoir generated between the block body and the pipe line, and FIG. 24 is a partial perspective view in which a part of the pipe line after repair is broken. FIG.

  12 and 13, 20 is a pipe such as a sewage pipe buried substantially horizontally in the ground, and 21 is a manhole that opens to the ground. In the restoration method according to the present invention, a plurality of ( A plurality of ring-shaped short pipe bodies 2 formed by connecting the five block bodies 1 to each other are connected in the length direction of the pipe line 20 in the pipe line 20 to form one cylindrical shape as shown in FIG. A body 15 is formed in the conduit 20.

  Thus, the short tube body 2 is formed by connecting each block body 1 in the circumferential direction one by one in the pipe 20, and the tubular body 15 is configured by connecting each short tube body 2 in the length direction. However, these operations can be performed while flowing service water such as sewage into the pipeline 20. The operation can be performed even in a state where service water is accumulated at the bottom of the pipe line 20.

  By the way, the block bodies 1 are connected in the circumferential direction in the following manner to form the short pipe body 2.

  That is, the block body 1 to be assembled is introduced from the manhole 21 to the inlet portion of the pipe line 20 as shown in FIG. 12, but the block body 1 is obtained by dividing each short pipe body 2 constituting the tubular body 15 into a plurality of parts. Therefore, even if the pipeline 20 has a large diameter (φ600 mm or more), each block body 1 used for repairing the pipeline 20 is easily introduced from the manhole 21. Can be assembled.

  Here, in the block body 1 before assembling, the outer surface openings of the box portions 1E formed at both ends in the circumferential direction are covered by the covers 16 shown in FIGS.

  The cover 16 is integrally formed of plastic. As shown in FIG. 10, engaging claws 16a are integrally formed at both ends in the width direction, and a total of eight anchor claws 16b are integrally formed on the lower surface. . The cover 16 is placed on the box portion 1E of the block body 1 so as to cover the opening on the outer surface, and the engaging claw 16a at both ends thereof is formed in the rectangular hole 10 (see FIG. 1), after the cover 16 is bonded or welded with an adhesive, the outer surface opening of the box portion 1E of the block body 1 is covered with the cover 16 as described above.

  Further, in the block body 1 before assembly, as shown in FIG. 19, seven bolts 22 (only two are shown in FIG. 19) longer than the length dimension b of the block body 1 (see FIG. 2). Are alternately passed through bolt insertion holes 3 and 4 of large and small diameters drilled in the outer peripheral plate 1B and the reinforcing rib 1C, and each bolt 22 is connected by a nut 23 screwed to this, and its screw portion Protrudes outward from one end face of the block body 1 as shown. Moreover, also in each block body 1 already assembled, a bolt 22 is inserted and fixed to one end surface thereof, and a thread portion of each bolt 22 projects outward.

  Here, the heads of the respective bolts 22 pass through the large-diameter bolt insertion holes 3 formed in the outer peripheral plate 1B and come into contact with the reinforcing ribs 1C, and the nuts 23 screwed to the bolts 22 also form the reinforcing ribs 1C. It is in contact. Therefore, the head of the bolt 22 and the nut 23 are not exposed to the outside of the block body 1. The bolt 22 and the nut 23 are made of a metal such as stainless steel or iron, or a plastic such as nylon or polyester, and a washer or a cushion material may be sandwiched between the tightening portions.

  Thus, the two block bodies 1 adjacent in the circumferential direction are connected to each other in the following manner.

  That is, as shown in FIG. 14, the box portions 1E of the two block bodies 1 adjacent to each other in the circumferential direction are in close contact with each other in the circumferential direction, and the plurality of bolt insertion holes 7 and air vent holes 8 formed therein are mutually connected. While connecting, the convex part 1b formed in the end surface of one block body 1 fits into the recessed part 1a formed in the end surface of the other block body 1, and the circumferential direction junction part of both the block bodies 1 is sealed. . At this time, an adhesive may be applied to the concave portion 1a and the convex portion 1b to improve the adhesion between them. As the adhesive, an epoxy resin, an adhesive using a tetrahydrafuran solvent, a silicone, acrylic, urethane, or butyl rubber adhesive is used.

  Here, since the inner surfaces of both the box portions 1E are open, the bolt 24 is inserted from the opening portion of one box portion 1E and passed through the bolt insertion hole 7, and the nut is inserted from the opening portion of the other box portion 1E. 25 is inserted and screwed onto the bolt 24 (see FIG. 16), and the two block bodies 1 adjacent in the circumferential direction are connected to each other by repeating this operation.

  By the way, the tool 26 shown in FIG.14 and FIG.15 is used for the connection of the block bodies 1 by the volt | bolt 24 and the nut 25. FIG. That is, the tool 26 converts the rotation of the motor 27 into the reciprocating linear motion of the bar 30 via the bevel gears 28 and 29, and converts the reciprocating linear motion of the bar 30 into the rotational motion of the gear 31. Here, the gear 31 is fitted into the nut 25, and as shown in FIG. 15, the tip of the bar 30 intermittently presses the tooth surface of the gear 31, so that the gear 31 and the nut 25 are in FIG. The nut 25 is screwed onto the threaded portion of the bolt 24 by turning in the direction of the arrow. At this time, the bolt 24 is prevented from rotating by the spanner 32.

  And when the two block bodies 1 adjacent to each other in the circumferential direction are connected to each other as shown in FIG. 16, the box portions 1E of both block bodies 1 are filled with putty, and then each inner surface opening portion is opened. 10 and 11, the cover 16 is closed as described above. At this time, since the cover 16 has a plurality of anchor claws 16b, the cover is covered by the anchor effect in the putty of the anchor claws 16b. 16 is prevented from falling off. Here, as the putty to be filled in the box portion 1E, a resin putty such as an epoxy resin, a polyester resin, or a silicone resin, a cement putty, or the like is used. The box portion 1E does not necessarily need to be filled with putty, and may be filled with a grout material after assembly.

  By the way, since pressure from a grout material 35 (see FIG. 22 to FIG. 24) described later acts on the cover 16 that covers the inner surface opening of the box portion 1E of the block body 1, the cover 16 is not fixed by adhesion. 16 may partially peel from the box portion 1E of the block body 1 to generate a gap between them, and the grout material 35 may leak from the gap.

  Therefore, as shown in FIG. 17, a concave groove 1 g is formed on the periphery of the inner surface opening of the box portion 1 </ b> E of the block body 1, a rib-like protrusion 16 c is formed on the periphery of the cover 16, and the protrusion 16 c of the cover 16 is formed. When the cover 16 is slid with respect to the block body 1 in the direction indicated by the arrow in a state where the cover 16 is fitted in the concave groove 1g of the block body 1, the cover 16 is concavo-convexly fitted to the block body 1 as shown in FIG. Fixed by. Thus, if the structure which fixes the cover 16 to the block body 1 by uneven | corrugated fitting is employ | adopted, even if a pressure acts on the cover 16, this cover 16 will be reliably fixed to the block body 1 and this will peel off. Therefore, a gap does not occur between the cover 16 and the block body 1, and a problem that the grout material 35 leaks from the gap does not occur.

  When the short tube body 2 is formed as described above, a plurality of short tube bodies 2 are connected in the length direction as shown in FIG. 12, and one tubular body 15 as shown in FIG. Hereinafter, a method of connecting the short tubes 2 in the length direction will be described.

  As shown in FIG. 19, the short tube body 2 before the assembly has another short tube body (the length of the pipe line 20) already assembled in the remaining bolt insertion holes 3 and 4 through which the bolts 22 are not inserted. The short pipe body 2 before assembling is brought into close contact with the short pipe body 2 as shown in FIGS. Then, as shown in FIG. 21, the convex part 1d protrudingly provided on the end surface in the length direction of the short tube body 2 before assembly is formed on the end surface in the length direction of the other short tube body 2 already assembled. The short tube body 2 is positioned and the joint portion between the two is sealed.

  After that, the nut 23 screwed into the end of the bolt 22 is tightened by inserting a tool from the large-diameter bolt insertion hole 3 opened in the outer peripheral plate 1B, and the short tube body 2 before assembly is shown in FIG. It attaches to the short tube 2 already assembled. At this time, since the head of the bolt 22 and the nut 23 are not exposed to the outside of the block body 1 as described above, the two short pipe bodies 2 adjacent to each other in the length direction of the pipe line 20 are in close contact with each other in a plane. Connected.

  As described above, when the two short pipe bodies 2 adjacent to each other in the length direction of the pipe line 20 are connected to each other, the short pipe bodies 2 are sequentially assembled in the length direction in the same manner as described above. One tubular body 15 is formed in the conduit 20.

  Incidentally, since the outer diameter of the cylindrical body 15 formed in the pipe line 20 is smaller than the inner diameter of the pipe line 20, a clearance space S (see FIGS. 13 and 13) is formed between the cylindrical body 15 and the pipe line 20. However, since the cylindrical body 15 is lifted upward by buoyancy, the radial gap at the upper portion of the clearance space S is reduced.

  Therefore, in this embodiment, as shown in FIG. 22, the cylindrical body 15 is expanded with a support 40 that forms a triangle and is secured inside the cylindrical body 15, and the cylindrical body 15 is secured. By adjusting the space between the inner wall of the pipe line 20 and the cylindrical body 15 by the spacers 36 (see FIG. 3) provided in the block body 1 that constitutes 15, the radial clearance of the clearance space S formed between them is completely reduced. It was made to be substantially uniform over the circumference. That is, the tip of the bolt 38 constituting the spacer 36 abuts against the inner wall of the pipe line 20 to determine the radial clearance of the clearance space S. Therefore, the bolt 38 is turned and removed from the cylindrical body 15 of the bolt 38. The radial gap in the clearance space S can be arbitrarily adjusted by changing the length of the portion protruding in the direction.

  In addition, the support 40 disposed inside the cylindrical body 15 adjusts the pressing force to the cylindrical body 15 by turning an adjusting bolt 41, and the pressing force is transmitted via a support plate 42 having an arcuate curved surface. The cylindrical body 15 is transmitted to the cylindrical body 15 and pushed outward in the radial direction, so that the cylindrical body 15 can have a cylindrical shape. As another method for preventing the cylindrical body 15 from being lifted by buoyancy, a method of storing water in the cylindrical body 15 can be considered.

  Then, the end of the clearance space S is closed with a sealing material (not shown) made of resin putty or mortar, and the grout is formed in a hole 1e formed in a part of the block body 1 constituting the cylindrical body 15 as shown in FIG. A hose 34 is connected, and a grout material 35 such as cement mortar or resin mortar is injected into the clearance space S from the grout hose 34. The cement mortar may be mixed with an emulsion in order to improve adhesion, and may be mixed with an anti-breathing agent in order to prevent breathing. The resin mortar is mainly composed of an epoxy resin or a polyester resin.

  When the space 5 shown in FIG. 6 or the space 5 ′ shown in FIG. 7 is not formed on the convex plate 1D of each block body 1, when the grout material 35 is injected into the clearance space S as described above, As shown in FIG. 23, air is partitioned by the convex plate 1D to generate an air pool, and the grout material 35 cannot be filled in the clearance space S.

  Therefore, in this embodiment, the space 5 shown in FIG. 6 or the space 5 ′ shown in FIG. 7 is formed on the convex plate 1 </ b> D of each block body 1. For this reason, air is discharged through the space 5 or 5 ′, and no air pool is generated in the clearance space S. Therefore, the grout material 35 is reliably filled in the clearance space S. Further, since a plurality of bolt insertion holes 7 and air vent holes 8 are formed in the outer peripheral plate 1B forming the outer circumferential end surface of the box portion 1E of each block body 1, the connecting portion in the circumferential direction of the block body 1 is formed. No matter where it is, it is discharged upward through the space 5 or 5 ′ formed in the convex plate 1 </ b> D, and no air accumulation occurs in the clearance space S.

  Thus, when the grout material 35 injected into the clearance space S formed between the cylindrical body 15 and the pipe 20 is cured, the cylindrical body 15 is integrated with the pipe 20 and is shown in FIG. Thus, the inner peripheral wall of the pipe line 20 is lined by the cylindrical body 15 and repaired.

  In this embodiment, as shown in FIG. 13 and FIG. 24, when connecting the short tubes 2 adjacent in the length direction, the circumferential direction connecting portion of the block body 1 constituting each short tube 2 is provided. Both connecting portions are shifted in the circumferential direction so as not to overlap in the length direction.

  As described above, according to the present invention, the block body 1 divided into a plurality of parts is connected in the circumferential direction in the pipe line 20 to form the short pipe body 2, and the short pipe body 2 is connected in the length direction. Since the continuous cylindrical body 15 having an outer diameter smaller than the inner diameter of the pipe line 20 is formed in the pipe line 20, each block body 1 is piped through the manhole 21 when the large-diameter pipe line 20 is repaired. The cylindrical body 15 continuous in the pipe line 20 can be formed by introducing it into the inlet of the path 20 and assembling it. And since this operation | work can be performed while flowing service water in the pipe line 20, desired restoration work can be performed while flowing service water also to the large diameter pipe line 20. FIG.

  Further, in this embodiment, the bolt insertion hole 4 formed in the reinforcing rib 1C of each block body 1, the bolt 22 inserted through the hole, and the reinforcing bar 17 as the reinforcing material function as a grout material anchor. That is, the cylindrical body 15 is reliably coupled and integrated with the pipe line 20 via the grout material 35, and as a result, high strength is secured in the pipe line 20 after repair.

  In the above description, the embodiment in which the present invention is applied to a tubular conduit has been described. However, the present invention is of course applicable to the repair of a square or horseshoe channel facility. For example, a block body 1 as shown in FIGS. 25 to 29 is used for repairing a box culvert tube having a rectangular cross section. Here, FIG. 25 is a side view of the block body, FIG. 26 is a plan view thereof, FIG. 27 is a bottom view thereof, and FIGS. 28 and 29 are views in the arrow J direction and the arrow K direction in FIG. In these drawings, the same elements as those shown in FIGS.

  Also in this case, as shown in FIGS. 30 and 31, a groove 1g is formed on the periphery of the inner surface opening of the box portion 1E of the block body 1, and a rib-like protrusion 16c is formed on the periphery of the cover 16. If the cover 16 is slid with respect to the block body 1 in the direction of the arrow in FIG. 30 with the protrusion 16c of the cover 16 fitted in the groove 1g of the block body 1, the cover 16 is as shown in FIG. The block body 1 is fixed to the block body 1 by concavo-convex fitting. Thus, if the structure which fixes the cover 16 to the block body 1 by uneven | corrugated fitting is employ | adopted, even if a pressure acts on the cover 16, this cover 16 will be reliably fixed to the block body 1 and this will peel off. Therefore, there is no gap between the cover 16 and the block body 1, and there is no problem that the grout material 35 leaks from the gap.

It is a side view of the block body for pipe line repair concerning the present invention. It is an external view (figure of the arrow A direction of FIG. 1) of the block body for pipe line repair which concerns on this invention. FIG. 3 is a sectional view taken along line BB in FIG. 2. It is a figure of the arrow C direction of FIG. It is the DD sectional view taken on the line of FIG. It is the EE sectional view taken on the line of FIG. It is a figure similar to FIG. 6 which shows the modification of the Example of this invention. It is a fragmentary sectional view which shows the attachment structure of a reinforcing material (rebar). It is a fragmentary sectional view which shows the attachment structure of a reinforcing material (rebar). It is a side view of a cover. It is the FF sectional view taken on the line of FIG. It is sectional drawing of the pipe line which shows the flow-path facility repair construction method concerning this invention. It is sectional drawing of the pipe line which shows the flow-path facility repair construction method concerning this invention. It is sectional drawing which shows the connection method of the block bodies adjacent to the circumferential direction. It is the G section enlarged detail drawing of FIG. It is sectional drawing which shows the connection structure of the block bodies adjacent to the circumferential direction. It is a fragmentary perspective view which shows another form of the attachment structure of a cover. It is a fragmentary sectional view which shows another form of the attachment structure of a cover. It is a fracture | rupture side view which shows the connection method of the ring-shaped members adjacent to a length direction. It is a fracture | rupture side view which shows the connection method of the ring-shaped members adjacent to a length direction. It is the HH sectional view taken on the line of FIG. It is a cross-sectional view of a pipe line in which a cylindrical body is formed. It is a partial cross-sectional view of a pipe line showing an air reservoir generated between a block body and the pipe line. It is the fragmentary perspective view which fractured | ruptured a part of pipe line which repair was completed. It is a side view of the block body for pipe line repair concerning another form of the present invention. It is a top view of the block body for pipe line repair concerning another form of the present invention. It is a bottom view of the block body for pipe line repair concerning another form of the present invention. It is a figure of the arrow J direction of FIG. It is a figure of the arrow K direction of FIG. It is a fragmentary perspective view which shows another form of the attachment structure of a cover. It is a fragmentary sectional view which shows another form of the attachment structure of a cover.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Block body for pipe repair 1A Inner surface board 1B Outer peripheral board 1C Reinforcement rib 1D Convex board 1E Box part 1g Groove 2 Short pipe body 3, 4 Bolt insertion hole 7 Bolt insertion hole 8, 9 Air vent hole 15 Cylindrical body 16 Cover 16c Protrusion 17 Reinforcing bar (reinforcing material)
20 Pipe line 22, 24 Bolt 23, 25 Nut 35 Grout material 36 Spacer 37 Spacer base 38 Bolt 40 Support 41 Bar S Clearance space

Claims (2)

A block body constituting the tube-like cylindrical member by assembling, formed by integrally formed with the internal surface plate that constitutes the inner circumferential surface, and an outer peripheral plate erected on the periphery of the inner surface plate by plastic In the block body for channel facility repair,
A block body for repairing a flow path facility, wherein a reinforcing bar bent in an arc shape is connected to a bolt that connects the block body in the longitudinal direction of the pipe and is attached to the outer surface of the inner surface plate in the circumferential direction.   The flow path facility repair block according to claim 1, wherein a plurality of the reinforcing bars are attached.

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