JP2021098364A - Tube rehabilitation member - Google Patents

Abstract

To provide a tube rehabilitation member capable of coping properly with rehabilitation of a medium caliber existing tube.SOLUTION: A tube rehabilitation member includes a lining member 12, and a connection member 14 for connecting each adjacent side edge part of the lining member wound around spirally, and is used for a tube rehabilitation method for being sent into an existing tube 100, while making a spiral tube 102 in a manhole. The lining member has a fitting part with the connection member on the outer surface side when being wound around spirally, and the connection member can be fitted from the outer surface side of the lining member.SELECTED DRAWING: Figure 9

Description

The present invention includes a lining member and a connecting member that connects the side edges of the lining member, and is used in a pipe rehabilitation method for producing a spiral pipe in a manhole and feeding it into an existing pipe. Regarding.

An example of a conventional tube rehabilitation member is disclosed in Patent Document 1. In the technique of Patent Document 1, the pipe rehabilitation member is composed of a lining member (strip plate member) and a connecting member (connecting member). When rehabilitating an existing pipe, a lining member is spirally wound along the inner surface of the existing pipe, and adjacent side edges of the spirally wound lining member are connected by a connecting member to form a spiral pipe. By forming, a spiral pipe (lining pipe) is constructed in the existing pipe. At this time, the connecting member is attached from the inner surface side of the lining member and constitutes the inner surface of the spiral tube together with the lining member.

Japanese Patent No. 6559920

The technique of Patent Document 1 is used for rehabilitation of an existing pipe having a diameter (a diameter of at least 800 mm or more) capable of allowing an operator to enter and work inside. For this reason, it is desired to have a pipe rehabilitation member that can handle the rehabilitation of an existing pipe having a medium diameter (for example, a diameter of 300 or more and 1000 mm or less), which is difficult for an operator to enter inside and easily manufacture a spiral pipe. ..

Therefore, the main object of the present invention is to provide a novel tube rehabilitation member.

Another object of the present invention is to provide a pipe rehabilitation member which can easily manufacture a spiral pipe and can appropriately cope with the rehabilitation of an existing pipe having a medium diameter.

The first invention is a pipe rehabilitation member used in a pipeline rehabilitation method in which a lining member is spirally wound in a manhole to form a spiral pipe and the spiral pipe is sent into an existing pipe. The lining member includes a member and a connecting member that connects adjacent side edges of the spirally wound lining member, and the lining member has a fitting portion with the connecting member on the outer surface side when spirally wound. It is a pipe rehabilitation member that is provided and the connecting member can be attached to the lining member from the outer surface side of the lining member.

In the first invention, the pipe rehabilitation member is used in a pipeline rehabilitation method in which a spiral pipe is produced in a manhole and the produced spiral pipe is sent into an existing pipe. The pipe rehabilitation member includes a lining member and a connecting member that connects adjacent side edges of the spirally wound lining member. The lining member is provided with a fitting portion with the connecting member on the outer surface side when spirally wound, and the connecting member can be attached from the outer surface side of the lining member.

According to the first invention, since the lining member is provided with a fitting portion with the connecting member on the outer surface side thereof and the connecting member can be attached from the outer surface side of the lining member, it corresponds to an existing pipe having a medium diameter. Even a spiral tube of a size is easy to manufacture. Therefore, the pipe rehabilitation member can appropriately cope with the rehabilitation of an existing pipe having a medium diameter.

Further, since it is provided with two members, a lining member and a connecting member, it is easy to match the peripheral lengths of adjacent lining members when forming a spiral tube, and a spiral tube having a uniform diameter over the entire length in the axial direction can be appropriately used. Can be formed.

The second invention is dependent on the first invention, in which the lining member is made of a polyolefin resin and the connecting member is made of a hard vinyl chloride resin.

According to the second invention, since the lining member is formed of a flexible polyolefin resin such as polyethylene resin, it is easy to wind the lining member in a spiral shape, and a spiral tube having a size corresponding to an existing medium-diameter tube. Can be formed appropriately. Further, since the connecting member is formed of a hard vinyl chloride resin having high strength, the rigidity of the entire spiral tube can be improved.

The third invention is subordinate to the first invention, and each of the lining member and the connecting member is formed of a rigid vinyl chloride resin.

According to the third invention, since the lining member and the connecting member are formed of a hard vinyl chloride resin having high strength, the rigidity of the entire spiral tube can be improved.

The fourth invention is dependent on any one of the first to third inventions, and the connecting member is on the inner surface side of the spiral tube in a state where adjacent side edges of the lining member are connected to each other to form a spiral tube. Not exposed to.

According to the fourth invention, since the connecting member is not exposed on the inner surface side of the spiral tube, the inner surface of the spiral tube can be made a smooth surface, and the flow performance of the spiral tube can be improved.

The fifth invention is dependent on any one of the first to fourth inventions, and the connecting member is a strip-shaped connecting base and the other main surface which is a surface of the connecting base facing the inner surface of the existing pipe. It has a pair of holding portions formed in the above and arranged at predetermined intervals in the width direction of the connecting substrate, and further includes a reinforcing member held by the pair of holding portions on the other main surface side of the connecting substrate.

According to the fifth invention, since the reinforcing member is attached to the connecting member, the rigidity of the connecting portion of the spiral tube can be increased, and the rigidity of the entire spiral tube can be increased.

The sixth invention is subordinate to the fifth invention, and the reinforcing member is a strip-shaped metal member.

According to the sixth invention, since a commercially available metal member (for example, steel strip) can be used as it is without specially manufacturing the reinforcing member for the pipe rehabilitation member, the member cost can be reduced.

The seventh invention is subordinate to any one of the first to fourth inventions, and the connecting member is a strip-shaped connecting base and the other main surface which is a surface of the connecting base facing the inner surface of the existing pipe. It has an anchor portion that is formed in the above and extends in the longitudinal direction of the connecting substrate.

According to the seventh invention, since the connecting member has an anchor portion, the spiral tube is less likely to come off from the filler at the connecting portion of the spiral tube, and the fixing strength between the spiral tube and the filler is improved. Therefore, the existing pipe and the spiral pipe can be firmly integrated by the filler. Further, since the anchor portion improves the rigidity of the connecting member itself, the rigidity of the connecting portion of the spiral tube can be increased, and the rigidity of the entire spiral tube can be increased.

The eighth invention is dependent on the seventh invention, and the anchor portion has a T-shaped cross-sectional shape.

According to the eighth invention, the anchor effect on the filler can be appropriately exerted while effectively increasing the rigidity of the connecting member.

According to the present invention, the lining member is provided with a fitting portion with the connecting member on the outer surface side thereof, and the connecting member can be attached from the outer surface side of the lining member. It is easy to make even a spiral tube. Therefore, the pipe rehabilitation member can appropriately cope with the rehabilitation of an existing pipe having a medium diameter.

Further, since it is provided with two members, a lining member and a connecting member, it is easy to match the peripheral lengths of adjacent lining members when forming a spiral tube, and a spiral tube having a uniform diameter over the entire length in the axial direction can be appropriately used. Can be formed.

The above-mentioned object, other object, feature and advantage of the present invention will become more apparent from the detailed description of the examples described below with reference to the drawings.

It is a schematic diagram which shows the state of rehabilitating an existing pipe using the pipe rehabilitation member which is one Example of this invention. It is a schematic diagram which shows the state of forming a spiral tube using the tube rehabilitation member of FIG. It is a perspective view which shows the lining member provided in the pipe rehabilitation member of FIG. It is sectional drawing which shows the lining member of FIG. It is a perspective view which shows the connecting member included in the pipe rehabilitation member of FIG. It is sectional drawing which shows the connecting member of FIG. FIG. 5 is a cross-sectional view showing a state in which side edge portions of the lining member of FIG. 3 are connected to each other using the connecting member of FIG. It is sectional drawing which shows the connecting part of the lining member of FIG. 3 and the connecting member of FIG. FIG. 5 is a cross-sectional view showing a state in which an existing pipe is rehabilitated by a spiral pipe formed by using the pipe rehabilitation member of FIG. It is a perspective view which shows another example of a connecting member. It is sectional drawing which shows the connecting member of FIG. FIG. 5 is a cross-sectional view showing a state in which side edge portions of the lining member are connected to each other using the connecting member of FIG. It is a perspective view which shows another example of a lining member. It is sectional drawing which shows the lining member of FIG. It is a perspective view which shows still another example of a connecting member. It is sectional drawing which shows the connecting member of FIG. FIG. 5 is a cross-sectional view showing a state in which side edge portions of the lining member of FIG. 13 are connected to each other using the connecting member of FIG. It is a perspective view which shows still another example of a lining member.

With reference to FIG. 1, in the pipe rehabilitation member 10 according to an embodiment of the present invention, the lining member 12 is spirally wound in the starting side manhole 110 to form a spiral pipe (lining pipe) 102 while forming a pipe. It is used in a push-type pipeline rehabilitation method in which the manufactured spiral pipe 102 is sequentially sent into the existing pipe 100. As will be described in detail later, the pipe rehabilitation member 10 is composed of a lining member 12 and a connecting member 14 that connects the side edges of the lining member 12.

The pipe rehabilitation member 10 can be used for rehabilitation of various existing pipes 100 made of reinforced concrete, synthetic resin, metal, etc., and in particular, it is difficult for an operator to enter the inside of the pipe rehabilitation member 10 to perform the work. It is suitably used for rehabilitation of sewer pipes having a medium diameter of 1000 mm or more and 1000 mm or less. However, the pipe rehabilitation member 10 can also be used for rehabilitation of the existing pipe 100 having a diameter of more than 1000 mm.

As shown in FIG. 2, the pipe rehabilitation member 10 is a member for forming the spiral pipe 102, and is adjacent to the long strip-shaped lining member 12 and the spirally wound lining member 12. Includes a long strip-shaped connecting member 14 that connects the edges. In this embodiment, the lining member 12 is provided with a fitting portion (first fitting portion 22) with the connecting member 14 on the outer surface side when wound in a spiral shape, and the connecting member 14 is spirally wound. It is attached to the lining member 12 from the outer surface side of the wound lining member 12. The outer diameter of the spiral pipe 102 formed by using the pipe rehabilitation member 10 is set to a size slightly smaller than the inner diameter of the existing pipe 100. Hereinafter, the configurations of the lining member 12 and the connecting member 14 will be specifically described.

As shown in FIGS. 3 and 4, the lining member 12 is a long member that is a main component of the spiral tube 102, and includes a strip-shaped substrate (lining substrate) 20. One main surface 20a of the substrate 20 is a surface constituting the inner surface of the spiral tube 102, and is a smooth surface. The width of the substrate 20 is, for example, 75 mm, and the thickness (wall thickness) of the substrate 20 is, for example, 3 mm.

The first main surface 20b side of the substrate 20, that is, both side portions on the outer surface side when the lining member 12 is spirally wound, is fitted with the second fitting portion 52 of the connecting member 14, which will be described later. The fitting portion 22 is formed. The first fitting portion 22 is a first engaging portion 24 formed on both side edges of the other main surface 20b of the substrate 20 and inside the first engaging portion 24 in the width direction of the substrate 20. It includes an engaging portion 24 and a third engaging portion 26 formed at a predetermined interval.

The first engaging portion 24 is a portion that is engaged with the second engaging portion 54 of the connecting member 14 described later. The first engaging portion 24 has a first ridge 28 extending in the longitudinal direction of the substrate 20. A first locking piece 30 is formed at the tip of one side surface 28a (inner surface in the width direction of the substrate 20) of the first ridge 28. Further, the other side surface 28b of the first ridge 28 is an inclined surface that inclines inward in the width direction of the base 20 as the distance from the base 20 increases.

The third engaging portion 26 is a portion that is engaged with the fourth engaging portion 56 of the connecting member 14 described later. The third engaging portion 26 has a third ridge 32 extending in the longitudinal direction of the substrate 20. A third locking piece 34 is formed at the tip of one side surface 32a (inner surface in the width direction of the substrate 20) of the third ridge 32. Further, at the tip of the other side surface 32b of the third ridge 32, an inclined surface that inclines inward in the width direction of the substrate 20 is formed as the distance from the substrate 20 increases.

Further, at the central portion in the width direction of the substrate 20, a displacement absorbing portion 36 is formed in which a part of the substrate 20 is loosened in the width direction so as to project toward the other main surface 20b. The wall thickness of the displacement absorbing portion 36 is substantially the same as the wall thickness of the other parts of the substrate 20. The displacement absorbing portion 36 is formed so as to bulge in the width direction as the distance from the main surface 20a increases, and the bent portions 38 formed on both side portions in the width direction and the connecting portion 40 connecting the bent portions 38 to each other. Has. The connecting portion 40 is formed so that the curvature is smaller than that of the bent portion 38, and the inner surface 40a of the connecting portion 40 is a flat surface. Further, a gap 42 is formed between the base ends of the displacement absorbing portions 36. The width of the gap 42 is, for example, 1 mm.

Since the substrate 20 has the displacement absorbing portion 36 in this way, the spiral tube 102 formed by using the lining member 12 is easily deformed in the axial direction and the bending direction at the portion of the displacement absorbing portion 36. Therefore, when the spiral pipe 102 is sent into the existing pipe 100 as described later, the displacement absorbing portion 36 is deformed so that the spiral pipe 102 can follow the bent portion, the bent portion, and the stepped portion of the existing pipe 100. .. Further, after the construction, when an earthquake occurs, the displacement absorbing portion 36 extends to absorb the axial displacement, so that the deformation at the connecting portion between the side edge portions of the lining member 12 is suppressed, and the lining member 12 The first fitting portion 22 of the above and the second fitting portion 52 of the connecting member 14 are properly held.

Further, since the displacement absorbing portion 36 has two bent portions 38 and a connecting portion 40 having a curvature smaller than that of the bent portion 38, the size of the displacement absorbing portion 36 in the height direction (the radial direction of the spiral tube 102) can be increased. While suppressing the displacement, the extendable width of the displacement absorbing portion 36 in the width direction (axial direction of the spiral tube 102) can be increased. Further, by having a gap 42 between the base ends of the displacement absorbing portion 36, the displacement absorbing portion 36 can be contracted in the width direction. Furthermore, since the displacement absorbing portion 36 is formed so as to bulge in the width direction as the distance from the main surface 20a increases, the outer surface of the displacement absorbing portion 36 in the width direction can be used as an anchor portion for the filler 104 (see FIG. 9). Function.

Such a lining member 12 is integrally molded by extrusion molding of a synthetic resin such as a polyethylene resin, a polypropylene resin, a nylon resin, a fluororesin, and a hard vinyl chloride resin, for example. Then, the first fitting portion 22 including the first engaging portion 24 and the third engaging portion 26 and the displacement absorbing portion 36 are formed over the entire length of the substrate 20 in the longitudinal direction. At this time, the lining member 12 is preferably formed of a polyolefin resin such as a polyethylene resin and a polypropylene resin. The lining member 12 of this embodiment is made of high-density polyethylene resin.

By forming the lining member 12 with a polyolefin resin such as polyethylene resin, it is possible to fuse-bond the ends of the lining member 12 in the longitudinal direction, and the strength and smoothness of the bonded portion can be appropriately ensured. .. Further, since the polyolefin-based resin is flexible, the lining member 12 formed of the polyolefin-based resin can be easily wound in a spiral shape. Therefore, the spiral pipe 102 having a size (that is, a relatively small diameter) corresponding to the existing pipe 100 having a medium diameter of 300 mm or more and 1000 mm or less can be appropriately formed. Further, the displacement absorbing portion 36 is easily deformed, and the spiral pipe 102 is easily followed by the displacement during construction, an earthquake, or the like. Furthermore, since the polyolefin-based resin is excellent in abrasion resistance and chemical resistance, the wear resistance and chemical resistance of the spiral tube 102 can be obtained by forming the lining member 12 constituting the inner surface of the spiral tube 102 with the polyolefin resin. Durability such as chemical properties is also improved.

As shown in FIGS. 5 and 6, the connecting member 14 is a long member for connecting the side edges of the lining member 12. The connecting member 14 is a member attached from the outer surface side (the other main surface 20b side) of the lining member 12 as described above, and in a state where the spiral tube 102 is formed by using the lining member 12 and the connecting member 14. It is configured so as not to be exposed on the inner surface side of the spiral tube 102.

The connecting member 14 includes a strip-shaped base (connecting base) 50. The width of the substrate 50 is, for example, 30 mm, and the thickness of the substrate 50 is, for example, 3 mm.

One main surface 50a of the base 50 is a surface of the lining member 12 facing the other main surface 20b of the base 20, and the lining member 12 is first fitted to each of both side portions of the one main surface 50a of the base 50. A second fitting portion 52 to be fitted with the joining portion 22 is formed. The second fitting portion 52 includes a second engaging portion 54 and a fourth engaging portion 56. The fourth engaging portion 56 is formed on both side edges of one main surface 50a of the substrate 50. The second engaging portion 54 is formed inside the base 50 in the width direction of the fourth engaging portion 56 at a predetermined distance from the fourth engaging portion 56.

The second engaging portion 54 has a second ridge 58 extending in the longitudinal direction of the substrate 50. A second locking piece 60 for locking the first locking piece 30 of the lining member 12 is formed at the tip of one side surface 58a (inner surface in the width direction of the substrate 50) of the second ridge 58. To. On the other hand, the fourth engaging portion 56 has a fourth ridge 62 extending in the longitudinal direction of the substrate 50. A fourth locking piece 64 for locking the third locking piece 34 of the lining member 12 is formed at the tip of one side surface 62a (inner surface in the width direction of the substrate 50) of the fourth ridge 62. To.

Further, on one main surface 50a of the substrate 50, a water blocking portion 66 formed in a band shape by an elastic body such as an elastomer is provided between the second engaging portion 54 and the fourth engaging portion 56. When the first fitting portion 22 of the lining member 12 and the second fitting portion 52 of the connecting member 14 are fitted to each other, the water stop portion 66 is the third main surface 50a of the base 50 and the third fitting portion 12 of the lining member 12. By being sandwiched between the engaging portion 26 and the tip portion, it is sufficiently compressed (see FIG. 9). As a result, watertightness is ensured at the connecting portion between the side edge portions of the lining member 12.

On the other hand, the other main surface 50b of the base 50 is a surface facing the inner surface of the existing pipe 100, and each of both side portions of the other main surface 50b of the base 50 has a semicircular cross section extending in the longitudinal direction of the base 50. The ridge 68 is formed. The ridge 68 becomes a portion that comes into contact with the inner surface of the existing pipe 100 when the spiral pipe 102 is fed into the existing pipe 100 as described later.

Further, a side ridge 70 having a rectangular cross section extending in the longitudinal direction of the substrate 50 is formed on each of the outer surfaces of the connecting member 14 in the width direction (in this embodiment, the other side surface 62b of the fourth ridge 62). The connecting member 14 functions as an anchor portion for the filler 104.

Such a connecting member 14 is integrally molded by extrusion molding of a synthetic resin such as a hard vinyl chloride resin, a nylon resin, a fluororesin, a polyethylene resin and a polypropylene resin, for example. Then, the second fitting portion 52 including the second engaging portion 54 and the fourth engaging portion 56, the ridge 68, and the side ridge 70 are formed over the entire length of the base 50 in the longitudinal direction. At this time, the connecting member 14 is preferably formed of a synthetic resin such as a hard vinyl chloride resin having a strength higher than that of the polyolefin resin. The connecting member 14 of this embodiment is made of a rigid vinyl chloride resin. The water stop portion 66 is provided over the entire length in the longitudinal direction by coextrusion with the connecting member 14.

By forming the connecting member 14 with a high-strength rigid vinyl chloride resin, the rigidity of the entire spiral tube 102 formed is improved as compared with the case where both the lining member 12 and the connecting member 14 are formed of a polyolefin resin. Can be made to. Further, when the spiral pipe 102 is sent into the existing pipe 100 as described later, the lining member 12 can be appropriately protected by the connecting member 14. Further, since the strength of the second fitting portion 52 is also increased, the fitting between the first fitting portion 22 and the second fitting portion 52 is difficult to be disengaged, and the side edge portions of the lining member 12 can be firmly connected to each other. .. Therefore, deformation of this connecting portion is suppressed in the event of an earthquake or the like, and a water stopping function can be ensured. Furthermore, the rigid vinyl chloride resin has better moldability than the polyolefin resin, the dimensions of the connecting member 14 can be easily obtained, and the side edges of the lining member 12 can be reliably connected to each other. Further, the rigid vinyl chloride resin has a higher adhesiveness to the water blocking material than the polyolefin resin.

As shown in FIGS. 7 and 8, when the adjacent side edges of the spirally wound lining member 12 are connected to each other by the connecting member 14, one main surface 20a of the base 20 of the lining member 12 is connected to each other. The side edges of the substrate 20 are butted against each other so as to be flush with each other. Then, the connecting member 14 is pushed in from the outer surface side of the spirally wound lining member 12, and the second fitting portion 52 of the connecting member 14 is pushed in the longitudinal direction with respect to the first fitting portion 22 of the lining member 12. Sequentially fit into. Then, each of the first locking piece 30 and the third locking piece 34 of the first fitting portion 22 is locked by the second locking piece 60 and the fourth locking piece 64 of the second fitting portion 52, respectively. Then, the side edges of the lining member 12 are connected to each other by the connecting member 14.

In this embodiment, in a state where the side edges of the lining member 12 are connected to each other by the connecting member 14, that is, in a state where the spiral tube 102 is formed, the side edges of the base 20 of the lining member 12 are directly abutted with each other, and the connecting member 14 is not exposed on the inner surface side of the spiral tube 102. Therefore, since the number of seams appearing on the inner surface of the spiral pipe 102 can be reduced, the inner surface of the spiral pipe 102 can be smoothed, and the flow-down performance of the spiral pipe 102 can be improved. Further, since only the lining member 12 formed of the polyethylene resin (polyolefin resin) is exposed on the inner surface of the spiral tube 102, the durability such as wear resistance and chemical resistance of the spiral tube 102 is also improved. ..

Further, in a state where the side edge portions of the lining member 12 are connected to each other by the connecting member 14, in the connecting portion, the first locking piece 30 of the lining member 12 faces outward with respect to the side edge of the substrate 20 and is connected. The second locking piece 60 of the member 14 faces inward with respect to the side edge of the substrate 20. That is, in the connecting portion between the side edge portions of the lining member 12, the first engaging portion 24 of the lining member 12 is sandwiched by the second engaging portion 54 of the connecting member 14. Therefore, due to the engagement between the first engaging portion 24 and the second engaging portion 54, a force acts on the lining member 12 in the direction in which the side edges of the adjacent bases 20 approach each other (the direction in which they come into close contact with each other). Therefore, in the formed spiral tube 102, the side edges of the base 20 of the lining member 12 can be appropriately brought into close contact with each other.

Similarly, in the connecting portion between the side edges of the lining member 12, the third locking piece 34 of the lining member 12 faces outward from each other with the side edge of the substrate 20 as the center, and the fourth locking piece of the connecting member 14 is connected. The 64s face each other inward, and the third engaging portion 26 of the lining member 12 is sandwiched by the fourth engaging portion 56 of the connecting member 14. Therefore, in addition to the engagement between the first engaging portion 24 and the second engaging portion 54, the lining member 12 also receives the engagement between the third engaging portion 26 and the fourth engaging portion 56. A force acts in the direction in which the side edges of the adjacent substrates 20 approach each other. Therefore, in the formed spiral tube 102, the side edges of the base 20 of the lining member 12 can be brought into close contact with each other more appropriately.

Further, as described above, the double engagement including the engagement between the first engaging portion 24 and the second engaging portion 54 and the engagement between the third engaging portion 26 and the fourth engaging portion 56. As a result, the side edge portions of the lining member 12 are connected to each other, so that the resistance force in the tensile direction (the direction in which the lining members 12 are separated from each other) increases at this connecting portion. Therefore, even when an axial displacement acts on the spiral pipe 102 at the time of an earthquake or the like, deformation of the connecting portion (first fitting portion 22 and second fitting portion 52) can be suppressed, and the water stop portion 66 stops water. The function can be secured. Further, since the connecting strength is secured by double engagement, the first engaging portion 24, the second engaging portion 54, the third engaging portion 26, and the fourth engaging portion 56 are used to increase the connecting strength. It is not necessary to increase the wall thickness, and the wall thickness can be made equal to that of other parts, that is, the entire member can have a uniform wall thickness, so that it is easy to mold.

Further, since the other side surface 28b of the first protrusion 28 of the first engaging portion 24 is an inclined surface, the first protrusion is in a state where the side edge portions of the lining member 12 are connected to each other by the connecting member 14. A gap 80 is formed on the other side surface 28b side of the strip 28. When the first engaging portion 24 and the second engaging portion 54 are engaged with each other, the first engaging portion 24 made of polyethylene is elastically deformed and tilted toward the other side surface 28b, but there is a gap 80. Since the tilting allowance of the first engaging portion 24 is secured, the force (pushing force) required for the engagement between the first engaging portion 24 and the second engaging portion 54 can be reduced, and the force (pushing force) required for engaging with the first engaging portion 24 can be reduced with respect to the lining member 12. The connecting member 14 can be easily attached.

Similarly, in a state where the side edges of the lining member 12 are connected to each other by the connecting member 14, a gap 82 is formed on the other side surface 32b side of the third ridge 32. When the third engaging portion 26 and the fourth engaging portion 56 are engaged with each other, the third engaging portion 26 is mainly elastically deformed and tilted toward the other side surface 32b, but due to the presence of the gap 82, the third engaging portion 26 is engaged. Since the fall allowance of the joint portion 26 is secured, the force required for engagement between the third engaging portion 26 and the fourth engaging portion 56 can be reduced, and the connecting member 14 can be easily attached to the lining member 12.

Furthermore, in a state where the side edges of the lining member 12 are connected to each other by the connecting member 14, the tip of the ridge 68 formed on the base 50 of the connecting member 14 is the outermost part of the lining member 12 in the radial direction of the spiral tube 102. (In this embodiment, it is located outside the outer surface of the connecting portion 40 of the displacement absorbing portion 36). Therefore, when the spiral pipe 102 is sent into the existing pipe 100, the ridge 68 is in sliding contact with the inner surface of the existing pipe 100, and the lining member 12 is not in sliding contact with the inner surface of the existing pipe 100 (or is difficult to be in sliding contact). The lining member 12 can be appropriately protected by 14. Further, by forming the ridge 68 on the other main surface 50b of the base 50 of the connecting member 14, when the spiral pipe 102 is sent into the existing pipe 100, the contact area between the inner surface of the existing pipe 100 and the outer surface of the spiral pipe 102. Decreases. As a result, the insertion resistance of the spiral pipe 102 can be reduced, and damage to the spiral pipe 102 due to sliding contact with the existing pipe 100 can be reduced. In this embodiment, since the connecting member 14 is made of a hard vinyl chloride resin having high strength, the protective effect of the lining member 12 and the damage reducing effect of the spiral tube 102 are more appropriately exhibited.

Further, in this embodiment, the other main surface 50b of the base 50 of the connecting member 14 is also the most of the lining member 12 in the radial direction of the spiral tube 102 in a state where the side edges of the lining member 12 are connected to each other by the connecting member 14. It is located outside the outside. Therefore, when the spiral pipe 102 is sent into the existing pipe 100, the lining member 12 can be more reliably protected by the connecting member 14.

Subsequently, with reference to FIGS. 1 and 9, an example of a pipeline rehabilitation method for rehabilitating the existing pipe 100 using the pipe rehabilitation member 10 as described above will be specifically described. In this embodiment, the existing pipe 100 between the starting manhole 110 and the reaching manhole 112 is rehabilitated.

When rehabilitating the existing pipe 100, first, the pipe making machine 114 is installed in the starting manhole 110, and the pipe rehabilitation member 10 including the lining member 12 and the connecting member 14 is installed on the ground near the starting manhole 110. .. The lining member 12 and the connecting member 14 may be individually wound into rolls and installed. The inside of the existing pipe 100 is cleaned in advance using a high pressure washer or the like.

Next, as shown in FIG. 1, the spiral pipe 102 is constructed in the existing pipe 100. That is, the lining member 12 and the connecting member 14 are supplied from the ground to the pipe making machine 114 installed in the starting side manhole 110, and the spiral pipe 102 formed by using the pipe making machine 114 is an existing pipe from the starting side manhole 110. It is sent in order within 100. In the pipe making machine 114, the lining member 12 is spirally wound so that the side edges of the base 20 of the lining member 12 are abutted against each other, and the connecting member 14 is attached from the outer surface side of the lining member 12 to the lining member 12. By connecting the adjacent side edges of the spiral tube 102, the spiral tube 102 is manufactured. The spiral pipe 102 made in the pipe making machine 114 is extruded from the pipe making machine 114 in order from the pipe-made portion, and is fed into the existing pipe 100 toward the reaching side manhole 112 while rotating.

At this time, the lining member 12 is provided with a fitting portion with the connecting member 14 on the other main surface 20b side (outer surface side) of the substrate 20, and the connecting member 14 is connected from the outer surface side of the spirally wound lining member 12. It can be attached. For this reason, a spiral pipe having a size (that is, a relatively small diameter) corresponding to an existing pipe 100 having a medium diameter of 300 mm or more and 1000 mm or less, which makes pipe manufacturing work difficult with a pipe rehabilitation member to which a connecting member is attached from the inner surface side of the lining member. Even if it is 102, it is easy to make a pipe. Further, since the spiral pipe 102 is formed by using the lining member 12 and the connecting member 14, the side edges of the lining member 12 are connected and fixed by the connecting member 14 after the lining member 12 is rotated and positioned. can do. Therefore, when forming the spiral tube 102, it is easy to match the peripheral lengths (diameters) of the adjacent lining members 12, and the spiral tube 102 having a uniform diameter over the entire length in the axial direction can be formed.

When the spiral pipe 102 is constructed over the entire length of the rehabilitation section of the existing pipe 100, the filler 104 is subsequently injected between the inner surface of the existing pipe 100 and the outer surface of the spiral pipe 102. When the filler 104 is solidified, a rehabilitation pipe (composite pipe) 106 in which the existing pipe 100 and the spiral pipe 102 are integrated is formed as shown in FIG. After that, the rehabilitation work of the existing pipe 100 is completed by appropriately carrying out the tidying up work and the like.

When forming the rehabilitation pipe 106, the side ridge 70 of the connecting member 14 and the displacement absorbing portion 36 of the lining member 12 exert an anchor effect, so that the spiral pipe 102 is hard to come off from the filler 104, and the spiral pipe 102 The fixing strength between the filler and the filler 104 is improved. Therefore, the existing pipe 100 and the spiral pipe 102 can be firmly integrated by the filler 104.

As described above, according to this embodiment, the lining member 12 is provided with a fitting portion with the connecting member 14 on the outer surface side thereof, and the connecting member 14 is connected to the lining member 12 from the outer surface side of the lining member 12. Since it can be attached, it is easy to manufacture even a spiral pipe 102 having a size corresponding to the existing pipe 100 having a medium diameter of 300 mm or more and 1000 mm or less. Therefore, the pipe rehabilitation member 10 can appropriately cope with the rehabilitation of the existing pipe 100 having a medium diameter.

Further, since the spiral tube 102 is formed by using the two members of the lining member 12 and the connecting member 14, it is easy to match the peripheral lengths of the adjacent lining members 12, and the spiral tube has a uniform diameter over the entire length in the axial direction. 102 can be formed.

Further, since the lining member 12 is formed of a flexible polyethylene resin (polyolefin resin), the lining member 12 can be easily wound in a spiral shape, and a spiral pipe 102 having a size corresponding to the existing medium-diameter pipe 100 is suitable. Can be formed into. Further, since the connecting member 14 is formed of a hard vinyl chloride resin having high strength, the rigidity of the entire spiral tube 102 can be improved.

Furthermore, when forming the spiral tube 102, the side edges of the base 20 of the lining member 12 are directly abutted against each other, and the connecting member 14 is not exposed to the inner surface side of the spiral tube 102. Therefore, the inner surface of the spiral tube 102 can be made a smooth surface, and the flow performance of the spiral tube 102 can be improved.

The specific configuration or shape of the pipe rehabilitation member 10 (lining member 12 and connecting member 14) described above may be appropriately changed as long as the connecting member 14 can be attached from the outer surface side of the lining member 12. is there.

For example, in the above embodiment, the lining member 12 has two engaging portions (first engaging portion 24 and third engaging portion 26) as a fitting portion (first fitting portion 22) with the connecting member 14. ), But there may be one engaging portion. Similarly, the connecting member 14 has two engaging portions (second engaging portion 54 and fourth engaging portion 56) as fitting portions (second fitting portion 52) with the lining member 12. There may be one engaging portion. Further, of the fitting portions formed on the lining member 12 and the connecting member 14, one fitting portion may be formed in a groove shape, and the other fitting portion may be formed in a ridge shape to be fitted therein.

Further, in the above-described embodiment, the connecting member 14 has two ridges 68 formed on both sides of the substrate 50, but the number of ridges 68 may be one or three or more. For example, if one ridge 68 is provided, it may be provided at the center of the other main surface 50b of the base 50 in the width direction, and if three ridges 68 are provided, the other main surface 50b of the base 50 may be provided. It may be provided at the central portion and both side portions in the width direction.

Further, in the above-described embodiment, a gap 42 is formed between the base ends of the displacement absorbing portion 36 of the lining member 12, but the gap 42 does not necessarily have to be formed. Further, the thin film portion connecting the one main surfaces 20a of the substrate 20 may be integrally formed so as to cover the gap 42, or the thin film portion may be attached by attaching the thin film portion afterwards.

Furthermore, although not provided in the above-described embodiment, a reinforcing member for increasing the rigidity can be attached to the outer surface side (the other main surface 20b side) of the lining member 12.

Further, as in the pipe rehabilitation member 10 of the second embodiment shown in FIGS. 10 to 12, a reinforcing member 18 for increasing the rigidity of the connecting member 14 can be attached. Hereinafter, the configuration of the pipe rehabilitation member 10 of the second embodiment will be specifically described, but the same portion as the pipe rehabilitation member 10 of the above-described embodiment (the first embodiment shown in FIGS. 1 to 9) will be described in detail. Give the same reference number and omit or abbreviate duplicate descriptions. The omission of duplicate explanations and the like is the same for the third embodiment described later.

As shown in FIGS. 10 and 11, the connecting member 14 includes a strip-shaped base 50, and one main surface 50a of the base 50 includes a second engaging portion 54 and a fourth engaging portion 56. 2 Fitting portions 52 are formed. Further, on one main surface 50a of the substrate 50, a water stop portion 66 is provided between the second engaging portion 54 and the fourth engaging portion 56 and also between the second engaging portions 54. .. The water stop portion 66 provided between the second engaging portions 54 is formed on the base 50 when the first fitting portion 22 of the lining member 12 and the second fitting portion 52 of the connecting member 14 are fitted together. On the other hand, it is sufficiently compressed by being sandwiched between the main surface 50a and the tip end portion of the first engaging portion 24 of the lining member 12 (see FIG. 12). As a result, watertightness at the connecting portion between the side edge portions of the lining member 12 is more appropriately ensured. Further, both side edges of one main surface 50a of the substrate 50 project outward from the other side surface 62b (outer surface in the width direction of the substrate 50) of the fourth ridge 62, and this portion is a filler 104. It is used as an anchor portion 78 for.

On the other hand, on the other main surface 50b of the substrate 50, a pair of holding portions 72 arranged at predetermined intervals in the width direction of the substrate 50 are formed. Each of the pair of holding portions 72 has a ridge portion 74 extending in the longitudinal direction of the base 50 and a claw portion 76 formed at the tip end portion of the ridge portion 74 and projecting inward in the width direction of the base 50. Have. In this embodiment, each of the pair of holding portions 72 is formed on both side edges of the other main surface 50b of the substrate 50, and the side surface of the substrate 50 and the lateral outer surface of the ridge portion 74 are formed flush with each other. To. By forming the holding portions 72 on both side edges of the other main surface 50b of the substrate 50, a wide reinforcing member 18 can be used as described later. That is, it is possible to use the reinforcing member 18 that secures rigidity and strength while suppressing the thickness. Further, the tip portion of the holding portion 72 becomes a portion that comes into contact with the inner surface of the existing pipe 100 when the spiral pipe 102 is fed into the existing pipe 100. By forming the holding portions 72 on both side edges of the other main surface 50b of the substrate 50, the tip end portion of the holding portion 72 comes into contact with the inner surface of the existing pipe 100 in a well-balanced manner.

Then, on the other main surface 50b side of the substrate 50, a long reinforcing member 18 is provided over the entire length of the connecting member 14 in the longitudinal direction by being held by a pair of holding portions 72. In this embodiment, a strip-shaped metal member (for example, strip steel) is used as the reinforcing member 18. The reinforcing member 18 has a rectangular cross-sectional shape, the width thereof is, for example, 30 mm, and the thickness thereof is, for example, 2.5 mm. When the connecting member 14 includes the reinforcing member 18, the rigidity of the connecting portion of the spiral pipe 102 (the portion where the side edges of the lining member 12 are connected by the connecting member 14) can be increased, and the spiral pipe 102 can be extended. Rigidity can be increased. Further, by adopting a strip-shaped metal member as the reinforcing member 18, a commercially available metal member (steel strip) can be used as it is without specially manufacturing the reinforcing member 18 for the pipe rehabilitation member 10. , Member cost can also be reduced.

The connecting member 14 of the second embodiment is integrally molded by extrusion molding of a rigid vinyl chloride resin, and the second fitting portion 52 and the pair of holding portions 72 are formed over the entire length of the substrate 50 in the longitudinal direction. .. Further, after the connecting member 14 is manufactured, the reinforcing member 18 is fitted between the pair of holding portions 72 from the other main surface 50b side of the base 50, so that the reinforcing member 18 is provided over the entire length of the connecting member 14 in the longitudinal direction.

As shown in FIG. 12, when the adjacent side edge portions of the spirally wound lining member 12 are connected to each other by the connecting member 14, the first fitting portion 22 of the lining member 12 and the connecting member 14 are connected to each other. 2 The fitting portion 52 is fitted. In this embodiment, in a state where the side edge portions of the lining member 12 are connected to each other by the connecting member 14, the tips of the pair of holding portions 72 formed on the base 50 of the connecting member 14 are the outermost in the radial direction of the spiral tube 102. Located in. That is, the tip of the holding portion 72 is located radially outside the outer surface of the connecting portion 40 of the displacement absorbing portion 36 of the lining member 12 and the outer surface of the reinforcing member 18. Therefore, when the spiral pipe 102 is fed into the existing pipe 100, the tip portion of the holding portion 72 is in sliding contact with the inner surface of the existing pipe 100, and the lining member 12 is not in sliding contact with the inner surface of the existing pipe 100 or is difficult to be in sliding contact. The connecting member 14 can appropriately protect the lining member 12 (particularly the displacement absorbing portion 36). Further, since the metal reinforcing member 18 does not or is difficult to slide with the inner surface of the existing pipe 100, it is possible to prevent the metal reinforcing member 18 from damaging the inner surface of the existing pipe 100.

Further, when the spiral pipe 102 is sent into the existing pipe 100, the tip portion of the holding portion 72 is in sliding contact with the inner surface of the existing pipe 100, so that the contact area between the inner surface of the existing pipe 100 and the outer surface of the spiral pipe 102 is reduced. To do. As a result, the insertion resistance of the spiral pipe 102 can be reduced, and damage to the spiral pipe 102 due to sliding contact with the existing pipe 100 can be reduced. In this embodiment, since the connecting member 14 is made of a hard vinyl chloride resin having high strength, the protective effect of the lining member 12 and the damage reducing effect of the spiral tube 102 are more appropriately exhibited.

As described above, according to the pipe rehabilitation member 10 of the second embodiment, the connecting member 14 can be attached from the outer surface side of the lining member 12 as in the first embodiment, so that the existing pipe 100 having a medium diameter can be attached. Can respond appropriately to rehabilitation.

Further, according to the pipe rehabilitation member 10 of the second embodiment, since the reinforcing member 18 is provided on the connecting member 14, the rigidity of the connecting portion of the spiral pipe 102 can be increased, and the rigidity of the entire spiral pipe 102 can be increased. Can be enhanced. Therefore, it is possible to appropriately prevent the spiral tube 102 from being flattened when the filler 104 is filled. In addition, the strength of the formed rehabilitation tube 106 can be increased.

Further, as in the pipe rehabilitation member 10 of the third embodiment shown in FIGS. 13 to 17, the anchor portion 84 can be formed on the lining member 12 instead of forming the displacement absorbing portion 36. An anchor portion 90 can also be formed on the connecting member 14. Hereinafter, the configuration of the pipe rehabilitation member 10 of the third embodiment will be specifically described.

As shown in FIGS. 13 and 14, the lining member 12 includes a strip-shaped base 20, and the first engaging portion 24 and the third engaging portion 24 are provided on both sides of the other main surface 20b of the base 20, respectively. The first fitting portion 22 including the portion 26 is formed.

An anchor portion 84 extending in the longitudinal direction of the base 20 is formed at the center of the other main surface 20b of the base 20 in the width direction. The anchor portion 84 is a portion that exerts an anchor function with respect to the filler 104 by being embedded in the filler 104, and is a portion that adds rigidity to the lining member 12. The anchor portion 84 of this embodiment has a T-shaped cross-sectional shape. Specifically, the anchor portion 84 includes a ridge portion 86 projecting from the other main surface 20b of the base 20 in a direction orthogonal to the base 20, and a strip extending from the tip portion of the ridge portion 86 in the width direction of the base 20. It has a shaped locking portion 88. By forming the anchor portion 84 in a T-shaped cross section, it is possible to appropriately exert the anchor effect on the filler 104 while effectively increasing the rigidity of the lining member 12.

The lining member 12 of the third embodiment is integrally molded by extrusion molding of a hard vinyl chloride resin, and the first fitting portion 22 and the anchor portion 84 are formed over the entire length of the substrate 20 in the longitudinal direction. By forming the lining member 12 with a hard vinyl chloride resin having high strength, the rigidity of the spiral pipe 102 formed by using the lining member 12 can be improved, and when the spiral pipe 102 is sent into the existing pipe 100, it is already installed. Damage to the lining member 12 due to sliding contact with the inner surface of the pipe 100 can be reduced.

As shown in FIGS. 15 and 16, the connecting member 14 includes a strip-shaped base 50, and one main surface 50a of the base 50 includes a second engaging portion 54 and a fourth engaging portion 56. 2 Fitting portions 52 are formed. Further, on one main surface 50a of the substrate 50, a water stop portion 66 is provided between the second engaging portion 54 and the fourth engaging portion 56, and between the second engaging portions 54.

On the other hand, an anchor portion 90 is formed on the other main surface 50b of the substrate 50. The anchor portion 90 is a portion that exerts an anchor function with respect to the filler 104 by being embedded in the filler 104, and is a portion that adds rigidity to the connecting member 14. The anchor portion 90 of this embodiment has a T-shaped cross-sectional shape. Specifically, the anchor portion 90 has a ridge portion 92 protruding from the other main surface 50b of the base 50 in a direction orthogonal to the base 50, and a strip-shaped portion extending in the width direction of the base 20 from the tip of the ridge portion 92. It has a locking portion 94 of the above. By forming the anchor portion 90 in a T-shaped cross section, it is possible to appropriately exert the anchor effect on the filler 104 while effectively increasing the rigidity of the connecting member 14.

Further, anchor portions 90 are formed on both side portions of the other main surface 50b of the substrate 50. As a result, the rigidity of the connecting member 14 becomes sufficiently high, and the anchor effect on the filler 104 is more appropriately exhibited. Further, the anchor portion 90 is formed so as to fit within the width of the substrate 50. That is, the lateral edge of the locking portion 94 in the width direction is arranged at the same position in the width direction as the side edge of the substrate 50, or inside the lateral edge of the substrate 50 in the width direction. When the adjacent side edges of the lining member 12 are connected to each other by the connecting member 14, the lateral movement (width direction) of the connecting member 14 is regulated (that is, positioned) by the pipe making machine 114. Since the anchor portion 90 is formed so as to fit within the width of the substrate 50, it is possible to prevent the anchor portion 90 from being pushed by the pipe making machine 114 and falling inward in the width direction.

The connecting member 14 of the third embodiment is integrally molded by extrusion molding of a rigid vinyl chloride resin, and the second fitting portion 52 and the anchor portion 90 are formed over the entire length of the substrate 50 in the longitudinal direction.

As shown in FIG. 17, when the adjacent side edge portions of the spirally wound lining member 12 are connected to each other by the connecting member 14, the first fitting portion 22 of the lining member 12 and the connecting member 14 are connected to each other. 2 The fitting portion 52 is fitted. In this embodiment, the tip of the anchor portion 84 of the lining member 12 (the outer surface of the locking portion 88) and the tip of the anchor portion 90 of the connecting member 14 are connected to each other by the connecting member 14. (The outer surface of the locking portion 94) is located on the outermost side of the spiral tube 102 in the radial direction. That is, the tip of the anchor portion 84 of the lining member 12 and the tip of the anchor portion 90 of the connecting member 14 are at the same height position in the radial direction of the spiral pipe 102 and are aligned flush with each other in the axial direction of the spiral pipe 102. .. As a result, when the spiral pipe 102 is sent into the existing pipe 100, the anchor portion 84 of the lining member 12 and the anchor portion 90 of the connecting member 14 slide in contact with the inner surface of the existing pipe 100 in a well-balanced manner. The force applied to the connecting member 14 is appropriately dispersed. Therefore, both the lining member 12 and the connecting member 14 (that is, the spiral tube 102) are less likely to be damaged. In this embodiment, since both the lining member 12 and the connecting member 14 are made of a hard vinyl chloride resin having high strength, the effect of reducing damage to the spiral tube 102 is more appropriately exhibited.

As described above, according to the pipe rehabilitation member 10 of the third embodiment, the connecting member 14 can be attached from the outer surface side of the lining member 12 as in the first embodiment, so that the existing pipe 100 having a medium diameter can be attached. Can respond appropriately to rehabilitation.

Further, according to the pipe rehabilitation member 10 of the third embodiment, since the connecting member 14 includes the anchor portion 90, the spiral pipe 102 is hard to come off from the filling material at the connecting portion of the spiral pipe 102, and the spiral pipe 102 and the filling material. The fixing strength with 104 is improved. Therefore, the existing pipe 100 and the spiral pipe 102 can be firmly integrated by the filler 104. Further, since the connecting member 14 includes the anchor portion 90, the rigidity of the connecting member 14 itself is increased. Therefore, the rigidity of the connecting portion of the spiral tube 102 can be increased, and by extension, the rigidity of the entire spiral tube 102 can be increased. Therefore, it is possible to prevent the spiral tube 102 from being flattened when the filler 104 is filled. In addition, the strength of the formed rehabilitation tube 106 can be increased.

The number and shape of the anchor portion 84 of the lining member 12 and the anchor portion 90 of the connecting member 14 can be changed as appropriate. For example, as shown in FIG. 18, the lining member 12 may also include two anchor portions 84. By increasing the number of anchor portions 84, the rigidity of the lining member 12 is increased, so that the width of the substrate 20 can be increased. Further, the shape of the anchor portion 84,90 is not limited to the T-shaped cross-sectional shape, and the anchor portion 84,90 may have a cross-sectional shape such as an L-shape or a cross shape.

The combination mode of the lining member 12 and the connecting member 14 mentioned in each of the above-described examples or modifications can be changed as appropriate, and is limited to the combination mode shown in FIGS. 7, 12, 17 and the like. is not it.

Further, in the above-described embodiment, the pipe rehabilitation member 10 is used in the push-type pipeline rehabilitation method of feeding the spiral pipe 102 into the existing pipe 100 while rotating the spiral pipe 102, but the present invention is not limited to this. The pipe rehabilitation member 10 is a traction type pipe that feeds the spiral pipe 102 made in the starting side manhole 110 into the existing pipe 100 without rotating the spiral pipe 102 by pulling the spiral pipe 102 from the reaching side manhole 112 side with a winch or the like. It can also be used for road rehabilitation methods.

Further, in the above-described embodiment, the filler 104 forms a composite pipe (rehabilitation pipe 106) in which the existing pipe 100 and the spiral pipe 102 are integrated, but the present invention is not limited to this. The pipe rehabilitation member 10 can also form a self-supporting pipe that retains its strength independently of the existing pipe 100.

The specific numerical values such as the dimensions mentioned above are merely examples, and can be changed as appropriate according to the needs of the product specifications and the like.

10 ... Pipe rehabilitation member 12 ... Lining member 14 ... Connecting member 18 ... Reinforcing member 20 ... Lining member base (lining base)
22 ... First fitting part 36 ... Displacement absorbing part 50 ... Base of connecting member (connecting base)
52 ... Second fitting part 68 ... Protrusion 72 ... Holding part 84 ... Anchor part of lining member 90 ... Anchor part of connecting member 100 ... Existing pipe 102 ... Spiral pipe 104 ... Filler 106 ... Rehabilitation pipe

Claims (8)

A pipe rehabilitation member used in a pipeline rehabilitation method in which a lining member is spirally wound in a manhole to form a spiral pipe while the spiral pipe is sent into an existing pipe.
Includes the lining member and a connecting member that connects adjacent side edges of the spirally wound lining member.
The lining member is provided with a fitting portion with the connecting member on the outer surface side when wound in a spiral shape, and the connecting member can be attached to the lining member from the outer surface side of the lining member. , Pipe rehabilitation member. The lining member is made of a polyolefin resin and is made of a polyolefin resin.
The pipe rehabilitation member according to claim 1, wherein the connecting member is made of a rigid vinyl chloride resin. The pipe rehabilitation member according to claim 1, wherein each of the lining member and the connecting member is formed of a rigid vinyl chloride resin. The pipe according to any one of claims 1 to 3, wherein the connecting member is not exposed to the inner surface side of the spiral pipe in a state where adjacent side edges of the lining member are connected to each other to form the spiral pipe. Rehabilitation member. The connecting member
A pair of holding portions formed on a strip-shaped connecting base and the other main surface of the connecting base on the side facing the inner surface of the existing pipe and arranged at predetermined intervals in the width direction of the connecting base. Have and
The pipe rehabilitation member according to any one of claims 1 to 4, further comprising a reinforcing member held by the pair of holding portions on the other main surface side of the connecting substrate. The pipe rehabilitation member according to claim 5, wherein the reinforcing member is a strip-shaped metal member. The connecting member
Claims 1 to 4 have an anchor portion formed on a strip-shaped connecting substrate and the other main surface of the connecting substrate on the side facing the inner surface of the existing pipe and extending in the longitudinal direction of the connecting substrate. The tube rehabilitation member according to any one of. The pipe rehabilitation member according to claim 7, wherein the anchor portion has a T-shaped cross-sectional shape.

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