JP2014196802A - Regeneration pipe constituting member,already-installed pipe repairing structure and already-installed pipe repairing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a regeneration pipe constituting member, an already-installed pipe repairing structure and an already-installed pipe repairing method that can improve an efficiency of work for the regeneration pipe.SOLUTION: A regeneration pipe constituting member 3 is made such that a planer body 7 is formed into a pipe shape by bending it inward W' in its width direction W so as to cause its one side surface 7a to become an inner peripheral surface and end segments are connected to each other to form a shape of pipe. When the planer body 7 is kept under a state of pipe-shape with a prescribed outer diameter size D1 being smaller than an inner diameter of an already-installed pipe 2, a width size α of a sheet segment 9 between belt-like segments 8 is set in such a way that the adjoining belt-like segments 8 are contacted to each other to hold the outer diameter size D1. The already-installed pipe repairing structure and the already-installed pipe repairing method using this regeneration pipe constituting member 3 can be contributed to shortening a construction period of the already-installed pipe repairing work.

Description

  The present invention relates to a rehabilitated pipe constituent material suitable for use in repairing existing large-diameter pipes such as sewer pipes, an existing pipe repair structure using the same, and an existing pipe repair method.

  Conventionally, as a repair structure for existing pipes such as aging sewer pipes, a hollow frame-shaped reinforcing material is disposed along the inner peripheral surface of the existing pipe in the existing pipe, and a plurality of inner surface members are provided inside the reinforcing material. A tube that is continuously attached in the circumferential direction of an existing pipe and assembled into a cylinder, and the inner member assembled in this cylinder is used as a rehabilitation pipe, and a filler is filled between the rehabilitation pipe and the existing pipe. (For example, refer to Patent Document 1).

JP 2002-310378 A

By the way, in the existing pipe repair structure according to Patent Document 1, when attaching the inner surface member to the reinforcing material, the fitting member is attached to each of the plurality of recessed portions for fitting formed in the inner peripheral portion of the reinforcing material. The inner member is attached to the reinforcing member by fitting the inner member to the fitting member.
For this reason, the existing pipe repair structure using this inner surface member has a problem that the work of attaching the inner surface member to the reinforcing member is troublesome, and the construction efficiency of the rehabilitated tube is poor.

  An object of the present invention is to provide a rehabilitated pipe constituent material capable of improving the construction efficiency of a rehabilitated pipe, an existing pipe repair structure using the rehabilitated pipe, and an existing pipe repair method in view of the above-described problems of the prior art. To do.

In order to achieve the above object, the rehabilitating pipe component according to the first invention is:
A rehabilitating pipe component for connecting rehabilitated pipes in the direction of the pipe axis in the existing pipe to be repaired,
A planar body that can be bent in the width direction corresponding to the circumferential direction of the existing pipe is bent in the width direction so that the surface on one side thereof becomes the inner peripheral surface, and the ends are joined to each other to form a pipe shape. Is formed by
The planar body has a predetermined height and extends in the depth direction corresponding to the pipe axis direction of the existing pipe, and is provided with a plurality of strips arranged at predetermined intervals in the width direction corresponding to the circumferential direction of the existing pipe. And a flexible sheet portion that connects adjacent strips on the other side of the planar body, the planar body having a predetermined outer diameter smaller than the inner diameter of the existing pipe In this state, the width of the sheet portion between the belt-like portions is set so that the belt-like portions adjacent to each other come into contact with each other to maintain the outer diameter.

  In the first invention, the belt-like portion preferably has a cross-sectional groove shape opened to the other surface side of the planar body (second invention).

  In the first invention or the second invention, it is preferable that the plurality of strip portions have the same cross-sectional shape, and that the width dimensions of the sheet portions between the strip portions adjacent to each other in the strip portions are all the same size (first 3 invention).

Next, the existing pipe repair structure according to the fourth invention is:
An existing pipe repair structure in which a filler is filled in a gap between an existing pipe to be repaired and a rehabilitation pipe formed by sequentially connecting rehabilitation pipe components in the pipe axis direction in the existing pipe,
The rehabilitating pipe component is a planar body that can be bent in the width direction corresponding to the circumferential direction of the existing pipe. It is formed by joining into a tube shape,
The planar body has a predetermined height and extends in the depth direction corresponding to the pipe axis direction of the existing pipe, and is provided with a plurality of strips arranged at predetermined intervals in the width direction corresponding to the circumferential direction of the existing pipe. And a flexible sheet portion that connects adjacent strips on the other side of the planar body, the planar body having a predetermined outer diameter smaller than the inner diameter of the existing pipe In this state, the width of the sheet portion between the belt-like portions is set so that the belt-like portions adjacent to each other come into contact with each other to maintain the outer diameter.

The existing pipe repair method according to the fifth invention is
An existing pipe repair method using the rehabilitated pipe constituent material according to the first invention, the second invention or the third invention,
A step of bending the planar body to the other surface side and winding it into a scroll shape and carrying it into the existing pipe;
A process of forming a rehabilitated pipe constituent material by developing a scroll-shaped planar body and bending it in the width direction so that the surface on one side thereof becomes an inner peripheral surface and joining the ends to form a tube shape When,
A step of forming rehabilitation pipes by sequentially connecting the rehabilitation pipe components in the pipe axis direction of the existing pipes;
And a step of filling the gap between the rehabilitation pipe and the existing pipe with a filler.

In the rehabilitation pipe constituent material of the present invention, it is made into the state of a scroll shape by bending and winding a planar object to the other side surface side.
Further, a rehabilitating pipe is constructed by developing a scroll-shaped planar body and bending it in the width direction so that the surface on one side thereof becomes the inner peripheral surface and joining the ends to form a tube shape. Therefore, it can be used as a rehabilitation pipe constituent material.
According to the rehabilitated pipe constituent material of the present invention, the sheet-like body can be easily carried into the existing pipe by making the sheet-like state, and the roll-like sheet-like body carried into the existing pipe is developed. Since it can be made into a usable state only by setting it as a pipe shape in the above-mentioned way, construction efficiency of a renovated pipe can be improved.

  Further, according to the existing pipe repair structure and the existing pipe repair method of the present invention, the rehabilitated pipe is formed by sequentially connecting the above-mentioned rehabilitated pipe constituent materials in the pipe axis direction of the existing pipe. Can be formed easily, and the construction period of existing pipe repair can be shortened.

Here, by forming the belt-like portion into a cross-sectional groove shape opened on the other surface side of the planar member, the inside of the belt-like portion is filled with the filler, thereby forming a high-strength rehabilitation pipe. be able to.
In addition, all the strips have the same cross-sectional shape, and the width dimensions of the sheet portions between the strips adjacent to each other in the strips are all the same, thereby standardizing the parts used for rehabilitation pipe components. As a matter of course, it is possible to improve the circular retainability of the rehabilitating pipe constituent material as well as to facilitate the unification.

It is a longitudinal cross-sectional view of the existing pipe repair structure using the rehabilitation pipe structural material which concerns on one Embodiment of this invention. (A) is the sectional view on the AA line of FIG. 1, (b) is the B section enlarged view of (a). (A) is a plate-shaped state diagram of a planar body, (b) is a tube-shaped state diagram of the planar body, and (c) is a scroll-shaped state diagram of the planar body. (A) is the C arrow line view of Fig.3 (a), (b) is the D section enlarged view of Fig.3 (a). It is process explanatory drawing (1) of the existing pipe repair method. It is process explanatory drawing (2) of the existing pipe repair construction method. It is process explanatory drawing (3) of the existing pipe repair method. It is explanatory drawing of the modification regarding a strip | belt-shaped part. It is explanatory drawing of the modification regarding a joining member. It is explanatory drawing of the modification regarding the cross-sectional shape of an existing pipe, (a) is explanatory drawing of the planar body used for the linear part of an existing pipe, (b-1)-(b-3) are mutually adjacent strip | belt-shaped parts. Explanatory diagrams in which the angle formed is set to a predetermined value, and (c-1) to (c-2) are explanatory diagrams in which the planar bodies are arranged so as to have various cross-sectional shapes. It is explanatory drawing of the modification which divided | segmented and comprised the planar body.

  Next, embodiments of the rehabilitated pipe constituent material of the present invention, an existing pipe repair structure using the same, and an existing pipe repair method will be described with reference to the drawings.

<Overview of existing pipe repair structure>
As shown in FIGS. 1 and 2 (a) and 2 (b), the existing pipe repair structure of this embodiment is embedded in the ground 1, for example, an existing pipe 2 to be repaired such as an aged sewer pipe. In the existing pipe 2, a filler 5 (for example, mortar) (see FIG. 2 (b)) is formed in a gap with the rehabilitation pipe 4 formed by sequentially connecting the required rehabilitation pipe components 3 along the pipe axis direction S. ))) Is filled. Here, between the ground and the existing pipe 2, a manhole 6 in which a person can go in and out is provided at a necessary place, and the rehabilitated pipe component 3 is carried into the existing pipe 2 through the manhole 6.

  By the way, as shown in FIGS. 2 (a) and 2 (b), the actual rehabilitating pipe component 3 is formed by connecting a large number of strip-like portions 8 to be described in detail later. Therefore, in the following, a simplified rehabilitating pipe component 3 in which a sufficient number of strips 8 necessary for explanation are connected will be described.

<Description of rehabilitation pipe components>
The rehabilitating pipe constituent material 3 is formed in the circumferential direction R (FIG. 2) of the existing pipe 2 so that the surface 7a on one side of the planar body 7 in the flat plate shape shown in FIG. It is formed by bending inwardly W ′ in the width direction W corresponding to (a) and joining the ends of each other to form a tube shape as shown in FIG.

<Description of planar body>
As shown in FIG. 3A, the planar body 7 has a plurality of arrangements arranged at a predetermined arrangement pitch P with a predetermined interval (corresponding to a predetermined width dimension α described later) in the width direction W. A belt-like portion 8 is provided.
The strip-shaped portion 8 is made of, for example, a synthetic resin produced by extrusion molding, and as shown in FIG. 4A, the depth corresponding to the tube axis direction S (see FIG. 1) of the existing tube 2 A main body plate portion 8a extending along the direction L is provided.
As shown in FIG. 4 (b), in this strip-shaped portion 8, the side plate portions 8b are arranged on both sides of the main body plate portion 8a in the direction of the arrow F in the figure corresponding to the radially outer side of the existing pipe 2. A cross-sectional groove shape is formed so as to be perpendicular to the main body plate portion 8 a and open to the other surface 7 b side of the planar body 7.
Moreover, the flange part 8c is provided in the front-end | tip part of both the side-plate parts 8b so that it may protrude inward.
Moreover, the cross-sectional shape of all the strip | belt-shaped parts 8 which comprise the planar body 7 is made the same.
The belt-like portion 8 may be made of a synthetic resin produced by a molding method other than extrusion molding, and may be made of a composite material such as FRP or a metal (section steel). .

As shown in FIG. 3A and FIG. 4A, two strip-shaped sheet portions arranged on the other surface 7 b of the planar body 7 with a predetermined interval in the depth direction L. 9 is pasted.
The sheet portion 9 is made of a relatively thin synthetic resin-made flexible sheet material, and extends over the entire area of the planar body 7 in the width direction W, and is adjacent to each other as shown in FIG. Adhesive or the like on the flange portions 8c of the respective band-like portions 8 in a state in which the arrangement pitch P of the band-like portions 8 is determined so as to have a predetermined width dimension α (> 0) of the sheet portions 9 between the belt-like portions 8 It is adhered by.
Note that the sheet portion 9 may be provided over the entire length of the band-shaped portion 8, that is, over the entire surface of the planar body 7.
Further, the sheet portion 9 can be provided with through holes (not shown) at appropriate places. Thereby, the filler 5 can be reliably filled into the space formed by the belt-like portion 8 and the sheet portion 9.

The width dimension α described above is a condition that the height dimension of the strip-shaped parts 8 adjacent to each other (the outer dimension between the body plate part 8a and the flange part 8c) h is smaller than the sum (2h) (α <2h). It is set as the predetermined value which satisfy | fills. Thereby, as shown in FIG. 3B, when the planar body 7 is in a tubular shape having a predetermined outer diameter D1 smaller than the inner diameter of the existing pipe 2, one side of the planar body 7 is obtained. The belt-like portions 8 adjacent to each other on the surface 7a side can be brought into contact with each other to hold the outer diameter D1.
In addition, all the width dimensions α of the sheet portions 9 between the adjacent strip-shaped portions 8 in all the strip-shaped portions 8 constituting the planar body 7 are the same.

By bending the planar body 7 in the flat plate shape shown in FIG. 3A to the other surface 7b side and winding it, as shown in FIG. .
The outer diameter dimension D <b> 2 of the roll-shaped planar body 7 is smaller than the inner diameter of the entrance / exit of the manhole 6, and the planar body 7 can be carried into the existing pipe 2 through the manhole 6.
The planar body 7 in the form of a scroll shown in FIG. 3 (c) is developed and bent to the inward direction W ′ in the width direction W so that the surface 7a on one side thereof becomes the inner peripheral surface. By joining them together into a tube shape as shown in FIG. 3 (b), the rehabilitated tube constituent material 3 for configuring the rehabilitated tube 4 can be used.
In this case, a watertight material (watertight agent) such as packing can be disposed at a contact portion between the adjacent strips 8. Thereby, the water tightness of the rehabilitation pipe component 3 can be enhanced.

<Description of existing pipe repair method>
Next, the existing pipe repairing method using the rehabilitated pipe constituting material 3 will be described below mainly using FIGS.

<First step>
First, as shown in FIGS. 5A and 5B, the joining member 10 is installed inside the existing pipe 2. This joining member 10 assembles a required joining member segment 11 in a ring shape along the inner peripheral surface of the existing pipe 2, and uses each anchor member etc. not shown on the inner peripheral surface portion of the existing pipe 2. The joint member main body 10a is formed by being fixed, and a required fitting projection member 12 is attached to the joint member main body 10a, whereby the joint member body 10a is assembled into a usable state.

<Second step>
Next, as shown in FIG. 5B, the sheet-like planar body 7 is carried into the existing pipe 2 through the manhole 6.

<Third step>
Next, the planar body 7 carried into the existing pipe 2 is developed and, as shown in FIGS. 3A to 3B, the width direction W so that the one surface 7 a becomes the inner peripheral surface. Are bent inwardly W ′ and joined to each other to form a tube shape, which can be used as the rehabilitated tube component 3 for constituting the rehabilitated tube 4.
In addition, joining of the edge parts of the planar body 7 is performed using the resin welding machine 13 etc. which are shown by Fig.6 (a), for example.
Further, when it is difficult to maintain a good circular shape only by the contact of the adjacent strips 8 due to the large diameter of the rehabilitating pipe constituent material 3, as shown in FIG. 6 (a). In addition, it is preferable that the rehabilitating pipe component 3 is tightened with the reinforcing band 14 to maintain a circular shape.

<4th process>
Next, as shown in FIGS. 6A to 6B, the rehabilitation pipe component 3 is moved toward the joining member 10, and an end portion of the belt-like portion 8 is used by using a packing tool (not shown). Then, the fitting protrusion member 12 is fitted, and the leading end portion of the rehabilitated pipe component 3 is connected to the joining member 10.

  By repeatedly executing the first step to the fourth step, as shown in FIG. 7 (a), the rehabilitated pipe component 3 previously incorporated in the existing pipe 2 is later placed in the existing pipe 2. The rehabilitated pipe construction material 3 is sequentially connected via the joining member 10 and the rehabilitated pipe structure incorporated at the end position of the existing pipe 2 in the repair target section as shown in FIGS. 7 (a) to (b). The end closing member 15 is fitted into the trailing edge of the material 3 to fill the gap at the trailing edge. In this way, the construction of the rehabilitation pipe 4 for the existing pipe 2 is completed.

<5th process>
And the filler 5 (refer FIG.2 (b)) is filled into the clearance gap between the existing pipe 2 and the renovated pipe 4 using the backfill machine etc. which are not shown in figure. Thereby, the repair of the existing pipe 2 is completed.

<Description of effects>
According to the rehabilitated pipe constituting material 3 of the present embodiment, the sheet-like body 7 can be easily carried into the existing pipe 2 by making the sheet-like body 7 into a scroll-shaped state, and the roll-shaped sheet-like body 7 is developed. Since it can be made into a usable state only by setting it as a pipe shape in said way, the construction efficiency of the renovated pipe 4 can be improved.
Further, by forming the band-shaped portion 8 in a cross-sectional groove shape opened to the other surface 7b side of the planar body 7, as shown in FIG. Since 5 is filled, a high-strength rehabilitation pipe 4 can be formed.
Moreover, while making all the strip | belt-shaped parts 8 into the same cross-sectional shape, and making all the width dimension (alpha) of the sheet | seat part 9 between the strip | belt-shaped parts 8 mutually adjacent in those strip | belt-shaped parts 8 into, the rehabilitation pipe component 3 As a matter of course, standardization and unification of the used parts can be facilitated, and the circular retainability of the rehabilitating pipe component 3 can be improved.

  According to the existing pipe repair structure and the existing pipe repair method using the rehabilitated pipe constituent material 3, the rehabilitated pipe constituent material 3 is sequentially connected in the pipe axis direction S within the existing pipe 2 to form the rehabilitated pipe 4. Thus, the rehabilitated pipe 4 can be easily formed, and the construction period for repairing the existing pipe can be shortened.

  As mentioned above, although the rehabilitation pipe constituent material of the present invention, the existing pipe repair structure using the same, and the existing pipe repair construction method have been described based on one embodiment, the present invention is limited to the configuration described in the above embodiment. Instead, the configuration can be changed as appropriate without departing from the spirit of the invention.

<Description of another example of sheet portion>
For example, in the above-described embodiment, all the belt-like portions 8 constituting the planar body 7 are integrally connected by the sheet portion 9 extending over the entire area of the planar body 7 in the width direction W. Although an example is shown, the present invention is not limited to this. For example, as shown in FIG. 8A, the sheet portion 9 (see FIG. 3A) is finely divided in the longitudinal direction. More specifically, the width of the sheet portion 16 is such that it can straddle the flange portion 8c on the other side of the one strip-shaped portion 8 adjacent to each other and the flange portion 8c on the one side of the other strip-shaped portion 8. The belt portions 8 adjacent to each other may be connected by the sheet portion 16.

<Description of another example of the cross-sectional shape of the belt-like portion>
In the belt-like portion 8 in the above embodiment, as shown in FIG. 4B, the flange portion 8c is provided so as to project inwardly at the distal end portion of the side plate portion 8b. As shown in FIG. 8, the flange portion 8c may be omitted, and as shown in FIG. 8C, the flange portion 8c may be provided so as to project outward.
As shown in FIG. 8 (d), both side plate portions 8b are connected so as to spread outwardly at an obtuse angle with respect to the main body plate portion 8a, or as shown in FIG. 8 (e) The plate portion 8a may be continuously provided so as to be narrowed inward at an acute angle.
As shown in FIG. 8 (f), both side plate portions 8 b may be narrowed inward at the portion from the base end portion to the intermediate portion and widened at the portion from the intermediate portion to the distal end portion.
As shown in FIG. 8 (g), both side plate portions 8b may be configured such that the portion extending from the base end portion to the intermediate portion is spread outward and the portions extending from the intermediate portion to the tip end portion are parallel to each other. In this case, as shown in FIG. 8 (h), the adjacent belt-like portions 8 can be brought into surface contact with each other from the base end portion to the intermediate portion, so that the sealing performance of the contact portion is improved. Can do.
As shown in FIG. 8 (i), both side portions of the main body plate portion 8a may be formed to be bent in an eight-letter shape, thereby making the inner peripheral surface of the rehabilitating pipe component 3 closer to a circle. it can.
As shown in FIG. 8 (j), the cross-sectional shape of the main body plate portion 8a may be an arc shape, and as a result, as shown in FIG. It can be close to a circle.

<Description of another embodiment of the joining member>
Instead of the joining member 10 in the above embodiment, a joining member 17 as shown in FIG. 9 can be used.
The joining member 17 shown in FIG. 9 includes a square block-like joining member main body 18 having an engaging concave portion 18a on one side and an engaging convex portion 18b on the other side. In this joining member main body 18, a tapered fitting protrusion 19 that fits on the trailing side end of the band-like part 8 in the preceding rehabilitated pipe constituting material 3 that is previously incorporated in the existing pipe 2 is formed on one end side thereof. The other end side is provided with a fitting protrusion that fits into the leading end portion of the belt-like portion 8 in the succeeding rehabilitating pipe component 3 that is incorporated into the existing pipe 2 after the preceding rehabilitating tube component 3. 20 is provided.
Further, without using the above-described joining member, fitting of a fitting-like projection or the like for joining the belt-like portion 8 adjacent to the belt-like portion 8 in the lengthwise direction at the end in the lengthwise direction of the belt-like portion 8 By forming the portion (not shown), the planar bodies 7 can be connected in the length direction. In this case, the belt-like body 7 can be fixed to the existing pipe 2 using an anchor bolt or the like.

  When the preceding rehabilitated pipe component 3 and the subsequent rehabilitated pipe component 3 are connected, the same number of joining members 17 as the number of the strips 8 constituting each rehabilitated pipe component 3 are used. The joining member 17 can connect the preceding rehabilitating pipe component 3 and the succeeding rehabilitating pipe constituting material 3, and any one of the joining members 17 (hereinafter, “the joining member”). 17 ”) is engaged with the engaging convex portion 18 b of the one side joining member 17 adjacent to the joining member 17, and the engaging convex portion 18 b of the joining member 17 is By being engaged with the engagement recess 18 a in the other joining member 17 adjacent to the joining member 17, the space between the joining members 17 adjacent to each other is sealed.

<Description of another example of existing pipe>
In the above embodiment, as the existing pipe 2 to be repaired to which the present invention is applied, an existing pipe having a circular cross-sectional shape has been described as an example, but the cross-sectional shape of the existing pipe 2 to be repaired is not limited to a circle, The present invention can be applied to existing pipes having various cross-sectional shapes such as horseshoe, arch, and rectangle.
In this case, for example, as shown in FIG. 10 (a), the planar body 7 constituting the rehabilitated pipe constituting material 3 used for the straight portion of the existing pipe 2 is formed of the sheet portion 9 between the strip-like portions 8 adjacent to each other. By making the width dimension α as close to zero as possible, the planar body 7 can be disposed substantially linearly.
Further, the planar body 7 constituting the rehabilitated pipe constituent material 3 used for the corner portion of the existing pipe 2 has the height dimension of the adjacent strip-shaped portions 8 shown in FIG. 4B (the main body plate portion 8a and the flange portion). By appropriately adjusting the outer dimension between 8c and the width dimension α of the sheet portion 9 between the belt-like portions 8, the angle between the belt-like portions 8 adjacent to each other is set to a predetermined value (FIG. 10 (b- 1) is set to 30 °, FIG. 10 (b-2) is set to 45 °, and FIG. 10 (b-3) is set to 90 °), and the planar body 7 is arranged so as to form a chamfered corner or a right angle. be able to.
Then, by combining the straight part, the corner part, and the circular (arc part) form of the above embodiment, the planar body 7 is formed into a horseshoe shape (FIG. 10 (c-1)), an arch shape, a rectangle (FIG. 10 (c)). -2)) and the like can be arranged so as to have various cross-sectional shapes.

<Description of another example of planar body>
In said embodiment, although the planar body 7 which comprises the rehabilitation pipe structural material 3 demonstrated based on the example which is not divided | segmented in the width direction, the planar body 7 is divided | segmented into 2 or more in the width direction. (FIG. 11 shows an example in which the planar body 7A and the planar body 7B are divided into two parts).
Here, the joining of the end portions in the width direction of the planar bodies 7A and 7B can be performed using, for example, a resin welding machine 13 or the like.
Moreover, the planar bodies 7A and 7B constituting the rehabilitated pipe component 3 can be tightened from the outer periphery with a reinforcing band (not shown) to hold the shape.

  The rehabilitated pipe constituent material of the present invention can be easily carried into an existing pipe by adopting a scroll shape, and can be used as a rehabilitated pipe constituent material simply by changing from a scroll shape to a tube shape. For example, it can be used suitably for the construction of rehabilitation pipes used in the repair of existing pipes with large diameters such as sewer pipes, and existing pipe repairs using this rehabilitation pipe component The structure and existing pipe repair method will contribute to shortening the work period of existing pipe repair.

DESCRIPTION OF SYMBOLS 1 Ground 2 Existing pipe 3 Rehabilitation pipe constituent material 4 Rehabilitation pipe 5 Filler 6 Manhole 7, 7A, 7B Planar body 8, 8A-8H Belt-like part 9 Sheet part 16 Sheet part

Claims (5)

A rehabilitating pipe component for connecting rehabilitated pipes in the direction of the pipe axis in the existing pipe to be repaired,
A planar body that can be bent in the width direction corresponding to the circumferential direction of the existing pipe is bent in the width direction so that the surface on one side thereof becomes the inner peripheral surface, and the ends are joined to each other to form a pipe shape. Is formed by
The planar body has a predetermined height and extends in the depth direction corresponding to the pipe axis direction of the existing pipe, and is provided with a plurality of strips arranged at predetermined intervals in the width direction corresponding to the circumferential direction of the existing pipe. And a flexible sheet portion that connects adjacent strips on the other side of the planar body, the planar body having a predetermined outer diameter smaller than the inner diameter of the existing pipe The rehabilitating pipe is characterized in that the width of the sheet portion between the belt-like portions is set so that the belt-like portions adjacent to each other come into contact with each other and maintain the outer diameter when they are in the state of Component material.   The rehabilitating pipe component according to claim 1, wherein the belt-shaped portion has a cross-sectional groove shape opened to the other surface side of the planar body.   The rehabilitated pipe according to claim 1 or 2, wherein all of the plurality of strips have the same cross-sectional shape, and the widths of the sheet portions between the strips adjacent to each other in the strips are all the same. Component material. An existing pipe repair structure in which a filler is filled in a gap between an existing pipe to be repaired and a rehabilitation pipe formed by sequentially connecting rehabilitation pipe components in the pipe axis direction in the existing pipe,
The rehabilitating pipe component is a planar body that can be bent in the width direction corresponding to the circumferential direction of the existing pipe. It is formed by joining into a tube shape,
The planar body has a predetermined height and extends in the depth direction corresponding to the pipe axis direction of the existing pipe, and is provided with a plurality of strips arranged at predetermined intervals in the width direction corresponding to the circumferential direction of the existing pipe. And a flexible sheet portion that connects adjacent strips on the other side of the planar body, the planar body having a predetermined outer diameter smaller than the inner diameter of the existing pipe The existing pipe is characterized in that the width dimension of the sheet portion between the belt-like portions is set so that the belt-like portions adjacent to each other come into contact with each other and maintain the outer diameter when they are in the state of Repair structure. An existing pipe repair method using the rehabilitated pipe constituent material according to claim 1, 2 or 3,
A step of bending the planar body to the other surface side and winding it into a scroll shape and carrying it into the existing pipe;
A process of forming a rehabilitated pipe constituent material by developing a scroll-shaped planar body and bending it in the width direction so that the surface on one side thereof becomes an inner peripheral surface and joining the ends to form a tube shape When,
A step of forming rehabilitation pipes by sequentially connecting the rehabilitation pipe components in the pipe axis direction of the existing pipes;
A method of repairing an existing pipe, comprising a step of filling a filler in a gap between the rehabilitated pipe and the existing pipe.

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