JPH11105134A - Strip-like material for lining tube and method for lining existing tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a strip-like material for a lining tube without necessity of water stopping treatment of a communication cable piping fixing hole by providing a tubular double wall having an inside first wall part and outside second wall part of base material in a lengthwise direction. SOLUTION: A connecting part of both side edges of the strip-like material for a lining tube may be spirally wound and hold watertightness at the tube formed in an existing tube. An engaging rib 12 having a locking part 122 at a lower surface of a protrusion-like projection 121 near at one side edge and a socket 13 having a groove 132 formed with an undercut part 131 for receiving the rib 12 near at the other side edge are continuously provided engageably in a lengthwise direction, and spirally wound. A plurality of ribs 14, 15, 16 and 17 may be stood on flat plate-like base material 11, and spirally wound to reinforce the lining tube formed in the existing tube.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lining pipe band and a method of lining an existing pipe, and more particularly, to a lining pipe band for rehabilitating existing pipes such as sewer pipes, water pipes, gas pipes, and the like. The present invention relates to a method for lining an existing pipe, which allows a communication cable pipe to be easily provided in the pipe by extremely simple construction.

[0002]

2. Description of the Related Art With the development of cable communication such as cable television, a space for installing a communication cable in a built-up city area has become a serious problem, and it is an underground buried facility, and the built-up city area is installed in a mesh pattern. Proposals have been made to use existing pipes, such as sewer pipes, water pipes, and gas pipes, and some have been put into practice. In particular, in the case of a sewer pipe, due to its nature, there is an extra space above the sewer pipe, and a communication cable pipe is provided along the cross section of the pipe.

[0003] Conventionally, in order to fix the communication cable pipe on the upper section of the above-mentioned pipe, preparation work such as mounting a communication cable pipe fixing jig such as a hook on the inner wall surface of the existing pipe is required. It requires plumbing work for installation. Furthermore, in order to perform the above-mentioned piping work while lining the existing pipe inner wall surface and rehabilitating the pipe, the communication cable pipe fixing jig such as the hook or the like is attached to the newly formed lining surface. If the hole has to be drilled and the water stoppage treatment of the drilled hole is not completely implemented, the new lining pipe may be damaged by water pressure that has entered the gap between the inner wall of the existing pipeline and the new lining pipe, The water could leak out of the system.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above facts, and an object of the present invention is to provide a lining which does not require a water stopping process for a communication cable pipe fixing hole. It is an object of the present invention to provide a method for lining an existing pipe, which makes it possible to easily and quickly attach a communication cable pipe using the same.

[0005]

According to the first aspect of the present invention,
A lining pipe band body having a joining portion continuous in the longitudinal direction near both side edges of a flat base material, spirally wound, and joined joining portions are joined to each other to line an existing pipe, The gist of the lining tube band is characterized in that a tubular double wall portion comprising a first inner wall portion and an outer second wall portion of the base material is provided in a longitudinal direction. I do.

According to a second aspect of the present invention, two cuts are made in the longitudinal direction in the first wall portion of the portion of the lining tube band according to the first aspect, in which the tubular double wall portion is formed,
A gist of the present invention is a method for lining an existing pipe, wherein the cut-out first wall portion is drawn inward.

The gist of the invention according to claim 3 is to provide a method for lining an existing pipe according to claim 2, characterized in that a cable is inserted through the first wall portion drawn inward.

According to a fourth aspect of the present invention, a cable fixing member is attached to a first wall portion of a portion of the lining tube band according to the first aspect, in which the tubular double wall portion is formed, in the lining tube. The gist of the present invention is a lining method for existing pipes.

The lining pipe strip used in the first aspect of the present invention generally has received a technical examination certificate as "rehabilitation technology for sewer sewers" based on the notification of the Ministry of Construction No. 1451 on July 28, 1987. As a profile made of hard vinyl chloride used in the "Super SPR Method (Sewage Pipe Renewal Method)", after making this profile into a pipe and lining it, it is possible to easily and quickly attach communication cable piping etc. in the lining conduit. It was developed in.

[0010] The material constituting the lining pipe band is spirally wound, and the helical lining pipe formed in the existing pipe by joining the joints which are in contact with each other is connected to the existing pipe which covers the helical lining pipe. Integrally, it is not particularly limited as long as it has the required strength required by the obtained lining conduit, for example, the required strength of the sewer pipe required by the sewerage facility design guideline. Thermoplastic resins which can be continuously molded by the method, particularly, vinyl chloride resins having excellent moldability are preferred. Of course, this does not exclude other thermoplastic resins and metals.

A description will be given below with reference to the drawings. The joints on both side edges of the lining pipe band according to the first aspect of the present invention are spirally wound so long as the lining pipe formed in the existing pipe can maintain watertightness in each application. Although not particularly limited, for example, FIG.
As shown in FIG. 3, an engaging rib 12 having a locking portion 122 on the lower surface of a convex protrusion 121 near one side edge, and an undercut portion 13 for receiving the engaging rib 12 near another side edge.
A socket 13 having a concave groove 132 formed with a groove 1 is continuously provided in the longitudinal direction so as to be engageable, spirally wound, and joined joints which are in contact with each other as shown in FIG. 5 and 6, a locking portion 124 may be provided on the lower surface of the convex protrusion 123 on both side edges, as shown in FIGS.
6, and a concave groove 134 formed with an undercut portion 133 which is spirally wound and tightly receives the two engaging ribs 125 adjacent to each other as shown in FIG. The lining pipe band 1 may be a two-piece member of a long tightening device 135 having the following.

Further, the lining tube band 1 of the present invention comprises:
A tubular double wall 113 including a first wall 111 inside and a second wall 112 outside the substrate 11 is provided in the longitudinal direction. May be partially missing, spirally wound, and when a lining tube is formed, a partially opened hole may be opened inside.

The lining tube band 1 of the present invention comprises:
As shown in FIG. 1, a plurality of ribs 14, 15, 16 and 17 are erected on a flat base material 11 and spirally wound to reinforce a lining pipe formed in an existing pipe. It may be. The ribs 14, 15 and 16
(Hereinafter referred to as an outer diameter regulating rib.) Are wall surfaces 14a, 15a, and 16a orthogonal to the base material 11, and wide stopper portions 14b, 15b provided on tops of the wall surfaces 14a, 15a, and 16a. 16b is provided at the same height on a plane parallel to the surface of the base material 11 and reinforces the formed lining pipe, regulates the outer diameter of the lining pipe, and controls the outer diameter of the lining pipe between the inner surface of the existing pipeline and the outer surface of the lining pipe. It also acts as a spacer for the backfilling agent that is filled in.

The plurality of outer diameter regulating ribs 14, 15, and 1
The height 6 may be provided at the same height on the surface of the base material 11 or may be different. When the plurality of outer diameter regulating ribs 14, 15, and 16 have different heights, when the lining pipe is formed by being spirally wound, the highest outer diameter regulating rib sets the outer diameter of the lining pipe. It will be regulated.

The ribs 17 are oblique ribs, extend outward from the lower side of the socket 13, and are provided continuously in the longitudinal direction. It has the function of exerting a pressing force and reinforcing these engagements.

Reference numeral 18 denotes a sealing agent layer, which reinforces the watertightness of the engagement portion between the socket 13 and the engagement rib 12. Although not shown, the sealing agent layer 18 may be provided on the engagement portion between the socket 13 and the engagement rib 12 or on both of them.

As shown in FIG. 4, the lining pipe band 1 is further inserted with a reinforcing member 2 shown in a partially cutaway perspective view between outer diameter regulating ribs 15 and 16 as shown in FIG. The lining pipe may be helically wound in the existing pipeline to reinforce a lining pipe formed by engaging an engaging rib and a socket which are adjacent to each other.

The reinforcing material 2 is not particularly limited as long as it can reinforce the lining pipe formed in the existing pipeline, but is preferably made of metal, especially aluminum, iron or the like. It is preferably made of a metal which can be easily processed, and more preferably made of stainless steel or the like for applications requiring corrosion resistance. Also, the shape is not particularly limited as long as it can effectively reinforce,
For example, a long plate-shaped body such as a U-shaped cross section, an inverted U-shape, a W-shape, and an inverted W-shape may be used.

The reinforcing member 2 shown in FIG. 3 is formed of a long plate-like body having a W-shaped cross section, and is inserted between the outer diameter regulating ribs 15 and 16 of the lining tube band 1 as shown in FIG. You. Both side ends of the reinforcing member 2 are engaged with the column portions a of the outer diameter regulating ribs 15 and 16 and the portions orthogonal to the lower surfaces of the stopper portions b, but prevent sliding at the portions and strengthen the engagement. For this purpose, sawtooth cuts 21 having a height of about 1 to 10 mm and a pitch of about 1 to 20 mm are provided continuously in the longitudinal direction. Reference numeral 22 denotes a through hole provided so that a backfilling agent, which will be described later, enters a gap between the reinforcing member 2 and the band-shaped body 1 for a lining pipe.

The lining pipe strip 1 is spirally wound, and an engaging rib and a socket that are adjacent to each other are engaged to form a lining pipe along the inner surface of the existing pipeline. The means for forming the lining pipe is not particularly limited. For example, the lining pipe is formed at a lining work site using a simple pipe manufacturing facility as disclosed in Japanese Patent Application Laid-Open No. 55-61434. However, a method of producing a pipe using the lining pipe band shown in FIGS. 3 and 4 will be described with reference to a process explanatory diagram shown in FIG.

Reference numeral 31 denotes a lining tube band 1 feeding drum, and the lining tube band 1 wound around the drum.
Is supplied to the pipe-making machine 32 installed for construction in the manhole 41 of the existing sewage pipe 40. On the other hand, reference numeral 33 denotes a rotating roller for bending the reinforcing member 2. The reinforcing member 2 is forcibly bent to a diameter smaller than the diameter of the lining pipe which lines the inner surface of the existing pipeline before being supplied to the pipe-making machine 32. And
It is supplied to the tube making machine 32 after being spirally curved.

The lining pipe band 1 of the pipe making machine 32 is
A lining pipe having a diameter slightly smaller than that of the existing sewage pipe is formed by spirally winding and engaging an engaging rib and a socket which are adjacent to each other and engage with each other. The lining pipe 20 is inserted between the outer diameter regulating ribs 15 and 16 of the lining pipe band 1 produced by the fitting roller, and continuously spirally rotates in the direction of an arrow in the existing sewage pipe 40. Is being made.

The reason that the reinforcing material 2 is forcibly bent to a diameter smaller than the diameter of the lining pipe is that even if a force for expanding the lining pipe acts, the expansion is prevented by the spring spring pressure due to the bending. To do that.

After the lining pipe is formed in the existing pipeline, the backfill material is injected into the gap between the existing pipeline and the lining pipe.
Is cured. The backfill material is used for bonding an existing pipeline and a lining pipe, and is not particularly limited.
The backfill material used in the construction method is a special mortar in which an adhesive main material such as Portland cement or the like is mixed with a lightweight aggregate such as obsidian, a swelling agent, a surfactant, and a resin emulsion.

In the lining tube thus obtained, the tubular double wall portion including the inner first wall portion and the outer second wall portion of the lining tube wall is formed in a spiral shape. By making a cut along the pipe axis of the lining pipe in the portion of the lining pipe wall that is a double wall section and pulling out the inner first wall section, for example, a communication cable pipe Are formed.

The cut is not particularly limited as long as it is a double-walled portion. For example, piping such as a communication cable or wiring, wiring, etc. may be provided in a direction perpendicular to the pipe axis of the lining pipe. Make a cut with a width that can support the member of
The cut portion is pulled while being heated in the opposite direction (inside) to the bending direction of the lining tube wall to form a space for inserting a communication cable pipe or the like between the lining tube wall and the drawn cut portion, In the same manner, a similar space is formed intermittently along the pipe axis of the lining pipe, and the cut-out portions drawn out may be used as fixtures, respectively. A communication cable piping fixture separately manufactured may be attached near the cut window for the work.

FIG. 10 (a) shows a state where two cuts 8, 8 are made in the first wall 111, which is the double wall, in a cross section along the pipe axis of the lining pipe. Is shown in a partial view of FIG. FIG. 10B is a partial sectional view showing a state in which the first wall portion 111 between the two cuts 8 in FIG. 10A is drawn inside the lining pipe. The drawn out first wall portion 111 and the lining tube 5
A space for fixing the communication cable is formed between them. FIG. 10C shows a state in which the communication cable 6 is wired in the communication cable fixing space formed in FIG. 10B, and the communication cable 6 is intermittent in the axial direction of the lining pipe 5. The overhead wire is fixed in the lining pipe 5 by the communication cable piping fixture 51 including the first wall 111 between the two cuts 8 provided in the lining pipe 5.

FIG. 9 shows a state in which the pipe fixing fixture 52 for a communication cable is attached to the first wall portion 111 which is the double wall portion in the method for lining an existing pipe according to the present invention. FIG. 3 is a cross-sectional view cut in a direction perpendicular to the pipe axis of the lining pipe, and the communication cable pipe fixing tool 52 is viewed from the inner surface of the first wall 111 serving as the double wall. Installed.

The method of fixing the communication cable piping fixture 52 to the first wall portion 111 is not particularly limited. The communication cable piping fixture 52 may be fixed to the first wall portion 111 from the inside of the lining tube using an anchor nail such as a plug, or the first wall portion 111 may be fixed as described above. The working window may be cut out from a part of the pipe and the tip of the communication cable piping fixture 52 inserted from the inside of the lining pipe may be fixed to the outer surface of the first wall 111 using a nut or a screw. Whichever method is adopted, the anchor nail hole or the like drilled for attaching the communication cable piping fixture 52 has a double wall having a second wall 112 on the outer side. Since it is a part, the water stopping process is completely unnecessary, and the fixing of the communication cable piping fixture 52 in an extremely short time is possible.

As described above, the band for a lining pipe of the present invention can be compactly wound in a coil shape and conveyed to a lining work site, and can be spirally wound on site using a simple pipe making facility. The lining pipe can be made only by itself, so that there is an advantage that the transportation cost can be reduced, the lining pipe of any diameter can be easily obtained, and the double pipe wall of the lining pipe formed in the existing pipeline is provided. The insertion space for the communication cable piping or the like is formed simply by making a cut in the portion and pulling it out, so that the communication cable piping or the like can be easily attached.

Since the existing pipe lining method of the present invention uses the above-mentioned lining pipe band to line an existing pipe, the communication pipe and the like can be connected to the double pipe at any time by a simple attaching method. Make two cuts in the first wall part inside the lining tube that is the wall,
Forming a space for insertion of communication cable piping etc. quickly and without the need for cumbersome operations and processes such as water stoppage processing by extremely simple means such as simply pulling the cut portion inward while heating. This part can be used as a fixture such as a communication cable pipe, and these pipes, wiring, and other members can be attached along the lining pipe.

[0032]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described.
Although described with reference to the drawings, the present invention is not limited to these examples.

(Example 1) A band for a lining pipe made of a hard vinyl chloride resin of the present invention having the shape shown in FIG. 1 (base material thickness: 3.4 mm, outer diameter regulating rib height: 21.5 mm, engagement) 79 mm length between rib and socket, sealing agent:
Feeding drum 31 using vinyl chloride elastomer)
The lining having a 900 mm inner diameter is placed in an existing underground sewer pipe (sewage pipe inner diameter: 1000 mm) 40 while the pipe is being supplied by a pipe forming machine 32 temporarily installed for construction in the manhole 4 shown in FIG. The pipe 5 was formed, and the backing material 7 was injected between the inner surface of the existing sewer pipe 40 and the outer surface of the lining pipe 5 to perform lining work (the reinforcing material 2 is not used here).

In this way, the lining pipe 5 is formed in the existing sewer pipe 40. The lining pipe 5 is located near the center of the lining pipe band 1 constituting the lining pipe 1 at the inner first wall 111. And the outer second wall 112
As shown in FIG. 8, in this portion, a 150 mm (cutting angle: 60 °) cut in the circumferential direction from the top to the left and right 75 mm in total, as shown in FIG. 2 at 150 mm intervals in the direction, and draw out the inside of the tube wall between the cuts while heating it with a torch lamp.
The communication cable piping 6 fixtures 51 are formed at 0 mm intervals, and the outer diameter is 150 mmφ between the inner surface of the lining pipe and the fixtures.
The communication cable piping 6 was inserted and connected to provide communication cable piping.

(Example 2) The belt-like body 1 for a lining pipe made of a hard vinyl chloride resin of Example 1 was similarly placed in an existing sewer pipe (sewage pipe inner diameter: 700 mm) 40 with an inner diameter of 60 mm.
A lining pipe 5 of 0 mm is formed, and a cut of the lining pipe wall is made in a circumferential direction 50 mm in total from the top to the left and right 50 mm in total.
0mm (cutting angle: 60 °), outer diameter 100mmφ
A communication cable pipe was provided in the same manner as in Example 1 except that the communication cable pipe 6 was inserted and connected.

Example 3 A band for a lining pipe made of a hard vinyl chloride resin of the present invention having a shape shown in FIG. 4 (base material thickness: 3.4 mm, outer diameter regulating rib height: 21.5 mm, engagement) Length between rib and socket: 79 mm, W-shaped steel reinforcement 2: height of central upper bent portion 17.2 mm, distance between lower bent portions on both sides 14.0 mm, steel thickness 1.2 mm, sealing agent: vinyl chloride Elastomer used) 1 in the same manner as existing sewer pipe (sewer pipe inner diameter: 2000 mm) 4
In 0, a lining tube 5 having an inner diameter of 1800 mm is formed,
Same as Example 1 except that the cut of the lining pipe wall was a total of 300 mm (cut angle: 60 °) with a total length of 150 mm left and right in the circumferential direction from the top and a communication cable pipe 6 with an outer diameter of 200 mmφ. A communication cable piping was added to the system.

(Embodiment 4) The cut of the lining tube wall of Embodiment 3 is made 112.5 m in the circumferential direction from the top to the left and right.
m total 225mm (cutting angle: 45 °), outer diameter 10
A communication cable pipe was provided in the same manner as in Example 3 except that a communication cable pipe 6 of 0 mmφ was inserted and connected.

(Embodiment 5) Two holes are formed in a portion corresponding to the cut portion of the lining tube wall of Embodiment 3, and both end portions of a communication cable piping fixture 52 as shown in FIG. As an anchor nail of a plug-like structure for hollow structure,
The communication cable piping 6 is inserted into the two holes of the first wall and fixed to the outer wall of the first wall, and the communication cable piping 6 is inserted and connected to the communication cable piping fixture 52 to connect the communication cable piping. Attached.

(Comparative Example 1) In the strip 1 for a lining pipe made of a hard vinyl chloride resin of Example 1, except that the double wall was not provided, the existing sewer pipe 40 was installed in the same manner as in Example 1. After forming the lining pipe 50 and injecting the backfill material 7 between the inner surface of the existing sewer pipe 40 and the outer surface of the lining pipe 50, the communication cable piping 6 fixing tool 51 of the first embodiment is used.
At the same position as shown in FIG. 11, as shown in FIG. 11, mounting holes 53, 53 for the communication cable piping 6 fixture 52 were drilled in the pipe wall, and the communication cable piping 6 fixture 52 was attached at the same interval as in Example 1. Thereafter, the gap between the perforated portions 53 was sealed with a silicone caulking agent, and a communication cable pipe was attached in the same manner as in Example 1.

(Comparative Example 2) In the strip 1 for a lining pipe made of a hard vinyl chloride resin of Example 3, except that the double wall was not provided, the existing sewer pipe 40 was installed in the same manner as in Example 3. After forming the lining pipe 50 and injecting the backfill material 7 between the inner surface of the existing sewer pipe 40 and the outer surface of the lining pipe 50, the communication cable piping 6 fixing tool 51 of the first embodiment is used.
At the same position as shown in FIG. 11, holes 53 for mounting the communication cable piping 6 fixture 52 are drilled in the pipe wall, and the communication cable piping 6 fixture 52 is attached at the same interval as in the first embodiment. A communication cable pipe was attached in the same manner as in Example 1.

In each of Examples 1 to 4, very easily,
In addition, a communication cable pipe can be attached in a short time, and even when the backfilling agent is injected, the lining tube wall is sufficiently watertight, so that the backfilling agent does not leak into the lining pipe at all and secure communication. In contrast to the installation of the cable piping, the mounting of the communication cable piping fixture itself in each of Comparative Examples 1 and 2 is quite troublesome, and the backfilling agent penetrates into the lining pipe. Water-stopping treatment with a water-stopping agent was performed on all the holes for mounting the pipe fixing fixtures, and the water-stopping work required a great deal of man-hours.

[0042]

The lining tube strip of the present invention is constructed as described above, so that it can be compactly wound into a coil and transported to the lining work site, using simple pipe making equipment. Since it is possible to form a lining pipe simply by spirally winding it at the site, the transportation cost can be reduced, and there is an advantage that a lining pipe of any diameter can be easily obtained, and a double pipe wall portion of the lining pipe A space for insertion of communication cable piping or the like can be formed simply by making a cut in or withdrawing the communication cable, and the communication cable piping or the like can be easily attached.

Further, the lining method of the existing pipe of the present invention is as follows.
Since the existing pipeline is lined using the lining pipe band, two cuts are made in the lining pipe wall portion which is the double pipe wall at any time when a communication cable or the like is attached. By using extremely simple means such as pulling the cut portion inward while heating the cut portion, the space for insertion of communication cable piping and the like can be quickly and without any troublesome work or process such as water stoppage treatment. It can be formed and provided with communication cable piping and the like.

[0044]

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an example of a lining pipe strip according to the present invention.

FIG. 2 shows an engaging state of an engaging rib and a socket which are adjacent to each other and are in contact with each other in a lining tube formed by spirally winding and engaging the lining tube band of the present invention shown in FIG. 1; It is a partially cutaway sectional view.

FIG. 3 is a partially cutaway perspective view showing a reinforcing plate used in another example of the lining pipe band of the present invention.

4 is a cross-sectional view showing another example of the lining tube band of the present invention using the reinforcing plate shown in FIG. 3;

FIG. 5 is a partially cutaway sectional view showing another example of the lining pipe band according to the present invention.

FIG. 6 shows an engaging state of an engaging rib and a socket, which are adjacent to each other, in a lining tube formed by spirally winding and engaging the lining tube band of the present invention shown in FIG. 5; It is a partially cutaway sectional view.

FIG. 7 is an explanatory view schematically showing a lining pipe forming (lining) step in the method for attaching a communication cable pipe using the lining pipe band according to the present invention.

FIG. 8 shows a method for attaching a communication cable pipe using a lining pipe strip according to the present invention, in which a communication cable pipe fixture is formed on a lining pipe formed in an existing pipeline shown in FIG. It is explanatory drawing which shows an example.

FIG. 9 shows a method for attaching a communication cable pipe using a lining pipe strip according to the present invention, in which a communication cable pipe fixture is formed on a lining pipe formed in an existing pipeline shown in FIG. It is explanatory drawing which shows another example.

FIG. 10 shows a process for forming a communication cable piping fixture on a lining tube formed in an existing pipeline shown in FIG. 8 in the method for attaching a communication cable piping using the lining tube band according to the present invention. , (A): a part of the cross section including the center line of the lining pipe showing a state where the first wall is cut, (b): the first cut having two cuts in the above (a) (A) is shown in the same cross section as the above (a), and the communication cable 6 is wired in the space for fixing the communication cable formed in the above (b). FIG. 4 is an explanatory view showing the state in which the state is shown in the same cross section as that of FIG.

FIG. 11 is a diagram illustrating an example of a state in which a pipe fixing device for a communication cable is formed in a lining pipe formed in an existing pipe in the lining pipe lining method using the lining pipe strip shown in the comparative example. FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Lining tube band 11 Base material 111 First wall 112 Second wall 113 Double wall 12, 125 Engagement rib 121, 123 Convex projection 122, 124 Locking part 13 Socket 131, 133 Undercut Part 132, 134 Concave groove 135 Tightening tool 14, 15, 16 Outer diameter regulating rib a Post (of 14, 15, 16) b b Head (of 14, 15, 16) 18 Diagonal rib 19 Adhesive layer 2 Reinforcing material DESCRIPTION OF SYMBOLS 21 Serrated anti-slip part 22 Through-hole 31 Feeding drum 32 Pipe-making machine 33 Rotating roller 34 Fitting roller 4 Manhole 40 Existing sewage pipe 5, 50 Lining pipe 51, 52 Piping fixture for communication cable 53 For fixing pipe fixture Hole 6 Piping for communication cable 7 Backfill material 8 Notch

Claims (4)

[Claims] 1. A lining pipe which has a joining portion continuous in the longitudinal direction near both side edges of a flat base material, is spirally wound, and joined joining portions are joined to each other to line an existing pipe. A band-shaped lining tube band, wherein a tubular double wall portion comprising a first inner wall portion and an outer second wall portion of the base material is provided in a longitudinal direction. body. 2. A cut is made in the longitudinal direction in two cuts in a first wall portion of a portion of the lining tube band according to claim 1, wherein the tubular double wall portion is formed. A method for lining an existing pipe, wherein the first wall is drawn inward. 3. The first wall portion drawn inward,
The method for lining an existing pipe according to claim 2, wherein a cable is inserted. 4. A lining tube according to claim 1, wherein a cable fixing member is attached to the first wall portion of the lining tube band where the tubular double wall portion is formed. Pipe lining method.