JPH10151670A - Method and apparatus for regenerating pipeline such as drain pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the amt. of a pressure fluid injected into a repairing material by inserting a flexible insertion member for narrowing an internal space into the repairing material to arrange the same to hermetically close the space. SOLUTION: A reparing material 13 having length equal to that of a pipeline 10 is inserted into the pepeline 10 to be arranged. The repairing material 13 has a flexible cylindrical shape impregnated with an uncured curable resin. A supply hose 17 supplying a pressure fluid L such as water or steam into an internal space E and a discharge hose 19 discharging water or steam in the internal space E are connected to the repairing material. The hoses 17, 19 are connected to the pressure means 21 of a water supply vehicle 20 forcibly supplying and discharging the pressure fluid L. When the pressure fluid L is sent into the internal space E of the repairing material 13 by the pressure means 21, the repairing material 13 is pressed to the inner wall 10A of the pipeline. By this constitution, the amt. of the pressure fluid injected into the narrowed internal space of the repairing material 13 can be reduced and regeneration work for the pipeline such as a drain pipe can be economically performed within a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rehabilitation technique for repairing the inside of a pipe such as a drain pipe, and more particularly, to reducing the amount of pressurized fluid injected into the repair material and draining the drainage even during the rehabilitation work. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipeline rehabilitation method and a device capable of flowing therethrough.

[0002]

2. Description of the Related Art As a method for repairing the inside of a pipe such as a drain pipe, a flexible tubular repair material impregnated with an uncured curable resin is inserted into the pipe and pressed to cure the pipe. Road repairs are provided, for example, as disclosed in JP-A-7-137134.

The above-mentioned Japanese Patent Application Laid-Open No. Hei 7-137134 discloses FIG.
As shown in FIG.
Is formed, and a repair material 7 impregnated with an uncured curable resin whose curing is promoted by heating is disposed outside the expansion chamber. The pressurized and heated liquid L is supplied into the expansion chamber 27. The repair material 7 is supplied from the water supply / boiler vehicle BC and is pressed against the inner surface of the pipeline to be hardened.

[0004]

However, in the conventional method as disclosed in Japanese Patent Application Laid-Open No. Hei 7-137134, a large amount of liquid such as water to be supplied into the expansion chamber 27 is required. For example, it has an outer diameter of 600 m / m and a length of 20 m.
Since the expansion chamber 27 of m requires 13 to 15 tons of water, it must be transported many times by a water truck or the like for one installation, and the fuel cost and time for heating this liquid are required. It is not practical.

Further, in the above construction method, as shown in FIG. 11, a stopcock T is provided upstream of the repaired manhole M2.
Since the drainage is completely shut off during the repair work,
The water suction hose K1 and the drainage hose K2 are disposed in the manholes M1 and M3 on both the upstream and downstream sides, and a drainage pump P is used to carry out a water refilling operation in which the drainage W flows through the road R. This drainage method requires a power source and a drive source for the drainage pump P,
There is a problem that the water absorption hose K1 and the drainage hose K2 on the road obstruct the passing vehicle and cause danger.

The present invention has been made on the basis of the above problems, and aims to reduce the amount of pressurized fluid injected into the repair material, and to reduce the amount of pressurized fluid. It is an object of the present invention to provide a pipeline rehabilitation method and a device for allowing drainage to flow through a repair material even during a rehabilitation operation.

[0007]

According to a first aspect of the present invention, there is provided a method for rehabilitating a pipe such as a drain pipe, wherein the flexible pipe impregnated with an uncured curable resin is provided. The repair material is formed, a flexible insertion member for narrowing the internal space is inserted into the repair material to seal the internal space between the repair material and the insertion member, and the repair material is inserted into the pipeline. In the arranged state, the repair material is pressed against the inner wall of the conduit by injecting a pressurized fluid into the internal space of the repair material, and the curable resin is cured to repair the inside of the conduit. It is assumed that.

According to the first aspect of the present invention, since the rehabilitation method for inserting and arranging a flexible insertion member for narrowing the internal space in the repair material and sealing the inside is provided, the internal space in the repair material can be narrowed. The flow rate of the pressurized fluid to be injected can be reduced. Thereby, pipe rehabilitation work of drainage pipes and the like can be performed economically in a short time.

According to a second aspect of the present invention, there is provided a pipe rehabilitation device such as a drain pipe, which is inserted and arranged in a pipe and impregnated with an uncured curable resin. In a pipe rehabilitation device such as a drain pipe provided with a pressurizing means for injecting a pressurized fluid into the internal space of the repair material and inflating the repair material against the inner wall of the pipe, such a device is inserted into the repair material. A flexible insertion member for narrowing the internal space is provided.

According to the second aspect of the present invention, a flexible insertion member is provided to be inserted into the repair material to narrow its internal space, and the flow rate of the pressurized fluid to be injected is reduced by narrowing the internal space in the repair material. it can. Thereby, pipe rehabilitation work of drainage pipes and the like can be performed economically in a short time.

In order to achieve the second object, a method for rehabilitating a drain pipe or the like according to claim 3 is a method for rehabilitating a pipe or the like according to claim 1, wherein the insertion member has a cylindrical shape. A hollow body having a narrower inner space in the repairing material, and a drain penetrating the shaft portion to allow drainage to pass through the inside of the repairing material.

According to the third aspect of the invention, since the rehabilitation method is such that the insertion member is a cylindrical hollow body, the flow rate of the pressurized fluid to be injected can be reduced by narrowing the internal space in the repair material, and the axial center thereof can be reduced. The passage formed in the section allows the drainage to pass smoothly. Thereby, while the pipe rehabilitation work such as the drain pipe can be economically performed in a short time, a water refilling operation is not required, and the pipe rehabilitation work can be easily and safely performed.

According to a fourth aspect of the present invention, there is provided a pipeline rehabilitation device for drain pipes or the like according to the second aspect of the present invention, wherein the insertion member narrows an internal space in the repair material. A passage through which drainage passes through the shaft center portion is formed as a hollow body penetrating into the repair material.

According to the fourth aspect, since the insertion member is formed as a hollow body, the internal space in the repair material is narrowed, and the flow rate of the pressurized fluid to be injected can be reduced. Furthermore, the drainage can be smoothly passed through the passage formed in the axial center of the hollow body. Thereby, while the pipe rehabilitation work such as the drain pipe can be economically performed in a short time, a water refilling operation is not required, and the pipe rehabilitation work can be easily and safely performed.

According to a fifth aspect of the present invention, there is provided a pipeline rehabilitation device for drain pipes or the like according to the fourth aspect, wherein the hollow body is formed of a soft hose that can be folded flat and a flexible hose. The hose comprises a small-diameter tube spirally wound around the outer periphery of the hose, and is expanded into a hollow shape by injecting a pressurized fluid into the small-diameter tube.

According to the fifth aspect of the present invention, the hollow body can be easily inserted into the repair material, the space can be saved in a folded state, and the pressurized fluid is injected into the small-diameter tube. Just easily and reliably inflated into a hollow shape,
Pipe line rehabilitation work such as a drain pipe can be performed with a small amount of pressurized fluid while flowing drain water.

According to a sixth aspect of the present invention, there is provided an apparatus for rehabilitating a pipeline such as a drain pipe according to the fourth aspect, wherein the hollow body is a double-walled soft cylinder which can be folded flat. It is formed of a tubular body, and is formed of a tubular body in which the inner and outer double soft tubular bodies are partially adhered to each other, and is expanded into a hollow shape by injecting a pressurized fluid into the tubular body. It is characterized by the following.

According to the sixth aspect of the present invention, insertion into the repair material can be performed easily, and space can be saved in a folded state, and the hollow shape can be obtained simply by injecting a pressurized fluid into the cylindrical body. The pipe rehabilitation work such as a drain pipe can be performed with a small amount of pressurized fluid while flowing drain water.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing the overall configuration of a pipeline rehabilitation device 100 according to a first embodiment of the present invention.
Shows a partial sectional view, and FIG. 4 shows a method of rehabilitating the pipeline.

The pipe rehabilitation apparatus 100 rehabilitates the pipe 10 using two manholes 3 and 5 in the pipe 10 of the drain pipes 1 buried underground on the road R, for example. It is. In order to repair a damaged portion in the pipe 10, a repair material 13 having a length equal to the length of the pipe 10 is inserted and arranged in the pipe 10. The repair material 13 has a flexible tubular shape impregnated with an uncured curable resin. In the present embodiment, the repair material 13 is formed to have a length substantially corresponding to the entire length between the adjacent manholes 3 and 5, but may be formed shorter than this.

The repair material 13 is formed by laminating an impervious film on the outer diameter side of a base hose in which felt is impregnated with a cured resin, and is provided on the inner diameter side of a calibration hose in which felt is impregnated with a cured resin. It has a two-layer structure in which a stack of transmission films is inserted. still,
The present invention is not limited to this, and a single-layered hose having a felt impregnated with a cured resin disposed outside the impermeable membrane may be used.

The repair material 13 includes a supply hose 17 for supplying a pressurized fluid L such as water or steam to the internal space E,
A discharge hose 19 for discharging water and steam in the internal space E is connected. The hoses 17 and 19 are connected to a pressurizing means 21 of a water truck 20 forcibly supplying and discharging the pressurized fluid L. When the pressurized fluid L is sent into the internal space E of the repair material 13 by the pressurizing means 21, the repair material 13 is pressed against the pipe inner wall 10A. In the present embodiment, the pressurized fluid L is supplied by the hoses 17 and 19.
Is forcibly supplied / discharged, but a non-circulating type water supply method in which only the pressurized fluid L is injected into the internal space E of the repair material 13 can be adopted. In addition, an on-off valve V for storing the pressurized fluid L inside at the time of repair and discharging the pressurized fluid L after the repair is provided at the end of the repair material 13.

The insertion member 15 is a flexible tubular body which is inserted into the repair material 13 from one side of the entrance and narrows the internal space E, and is made of a material such as an impermeable and soft resin. What can always be folded flat is used.
For example, a cloth knitted hose (trade name: Sunny hose) coated with soft vinyl chloride is employed. As shown in FIGS. 2 and 3, the outer diameter D1 is １ ／ of the outer diameter D of the repair material 13.
It is set to about ／. In addition, the insertion member 1
Reference numeral 5 is set to be substantially the same as or slightly shorter than the length of the repair material 13. A supply hose 22 for the pressurized fluid L1 is connected to an inlet at one end, and the other end is closed. Further, the repair material 13 and the insertion member 15 are sealed at an entrance at one end of the repair material 13, and the internal space E is sealed. Accordingly, the insertion member 15 expands due to the supply of the pressurized fluid L1 from the pressurizing unit 21 and narrows the internal space E. The internal pressure of the insertion member 15 is preferably equal to or higher than the internal pressure of the internal space E of the repair material 13. For example, when the internal pressure of the internal space of the repair material is 0.5 kg / cm ² , for example, the internal pressure of the insert member Is about 1 kg / cm ² . That is,
It is necessary for the insertion member to have such strength that it does not completely flatten with the pressing force of the repair material against the inner wall of the conduit.

The total length of the insertion member 15 may be shorter than the repair material 13, for example, about half. The insertion member 15 is flexible and has a manhole 3,
As long as it can be inserted into the pipe 5 and the conduit 10, the same one that has been expanded from the beginning may be used.

The pipeline rehabilitation device 100 of the present invention is configured as described above, and is used as follows. First, the manufacturing process of the pipeline rehabilitation device 100 of the present invention in a factory will be described. As shown in FIG. 4, starting from "preparation of repair material" (a), "mixing of curable resin" (b), "impregnation of repair material (base hose) with cured resin" (c), "calibration" Hose reversing insertion ”(d),“ insertion of insertion member into repair material ”(e),“ Cooling shipment (loading of transport vehicle) ”
(F) is executed.

Subsequently, the process shifts to a field process, where "insertion and arrangement of the repair material in the pipe" (g), "injection of the pressurized fluid into the insertion member" (h), and "pressurized fluid into the repair material" Injection "
(I), “heating of pressurized fluid” (j), “curing of the curable resin” (k), and finally, “repair in the pipeline is completed” (l), the pipeline rehabilitation work for drainage pipes etc. is completed. I do.

That is, the flexible tubular repair material 13 impregnated with the uncured curable resin is inserted and arranged in the pipe 10, and then the insertion member 15 inserted into the repair material 13 is inserted. The pressurized fluid L1 is injected into the inside and expanded. Thereafter, by injecting a pressurized fluid L into a narrow internal space E in the sealed repair material 13, the repair material 13 is pressed against the pipe inner wall 10A, and the curable resin is cured to cure the pipe. The inside is repaired.

As described above, according to the first embodiment of the present invention, the following effects can be obtained. First, repair material 1
3 is a rehabilitation apparatus and method for inserting and arranging the insertion member 15 for narrowing the internal space in the inside of the repair material 13 so as to reduce the amount of pressurized fluid to be injected by narrowing the internal space in the repairing material 13, and economical in a short time Pipeline rehabilitation work for drainage pipes and the like can be carried out.

Further, since the number of times of water supply by the water truck can be reduced and the size of the boiler vehicle can be reduced, the effect of cost reduction can be exhibited. Further, since the insertion member 15 is formed of a material such as an impermeable and soft resin, the insertion member 15 can be folded flat during transportation, and the effect of saving space can be exhibited.

The present invention is not limited to the above-described first embodiment, and it goes without saying that design changes in detail within the gist of the present invention can be freely made. For example, the pressurized fluid is not limited to water, and steam and other fluids may be used. Further, in the rehabilitation work step, the curable resin can be cured even if the heating of the pressurized fluid L is omitted. Further, the insertion member may be arranged on site.

Next, a second embodiment of the present invention will be described with reference to FIGS.
The pipeline rehabilitation device 200 and method according to the embodiment will be described. This achieves the second object of the present invention,
The insertion member 15 is a hollow body 150 composed of an airtight soft hose 30 that can be folded flat and a small-diameter tube 33 spirally wound around the outer periphery of the hose. The outer diameter D1 of the hollow body 150 is 1/2 to 2 of the outer diameter D of the repair material 13.
/ 3 is set. Further, this is set to be substantially the same as or slightly longer than the length of the repair material 13 and penetrate the inside of the repair material 13, and the supply hose 22 for the pressurized fluid L 1 is connected to one end of the small-diameter pipe 33. Have been.

Thus, it is possible to transport and insert into the manholes 3 and 5 and the pipeline 10 in a state where it is normally folded flat.
Is injected into the small-diameter tube 33 to spirally establish the small-diameter tube 33 and expand the soft hose 30 into a hollow shape, thereby narrowing the internal space E of the repair material 13 and passing the passage through the axial center portion thereof. It is a cylindrical hollow body penetrating 150A. In addition, as the soft hose 30, for example, a cloth knitted hose (trade name: Sunny hose) coated with soft vinyl chloride is used. The repair material 13 and the insertion member 15 are sealed at both ends of the repair material 13, and the internal space E is sealed.

Structures other than those described above are the same as those of the pipeline rehabilitation device 100 of the first embodiment, and are denoted by the same reference numerals and description thereof is omitted.

The pipeline rehabilitation device 200 of the present invention is configured as described above, and operates as follows. First, the in-plant process and the on-site process of the pipeline rehabilitation device 200 of the present invention are executed in the same manner as in the first embodiment, as shown in FIG.

In the rehabilitation work, a flexible tubular repair material 13 impregnated with an uncured curable resin is inserted and arranged in the pipe 10. Next, a flexible hollow body 150 previously inserted into the repair material to narrow the internal space E of the repair material.
The pressurized fluid L1 is injected into the small-diameter pipe 33 wound around the pipe to establish a spiral shape, whereby the insertion member expands, and the strength of the insertion of the repairing material against the inner wall of the pipe is not completely flattened. To have. Subsequently, by injecting a pressurized fluid L into the internal space E in the sealed repair material, the repair material is pressed against the pipe inner wall 10A, and the curable resin is cured to cure the inside of the pipe. To repair. At this time, the drainage W flowing in the pipeline 10 flows downstream through the passage 150A formed in the axial center of the repair material. At this time, if the pressurized fluid L has a calorific value to quickly cure the curable resin, it is preferable to use the pressurized fluid L1 having a lower thermal conductivity than the pressurized fluid L. This is to make the pressurized fluid L1 function as a heat insulating material in order to prevent the heat quantity of the pressurized fluid L from being taken away by the wastewater W. Air or the like is used as the pressurized fluid L1.

As described above, according to the second embodiment of the present invention, the following effects can be obtained. First, since it is a rehabilitation apparatus and method in which the insertion member is a cylindrical hollow body 150, the internal space in the repair material is narrowed, the amount of pressurized fluid to be injected can be reduced, and it is formed at the axial center thereof. Since the drainage W can be smoothly passed through the passage 150A, a water replacement work is not required, and the pipe rehabilitation work can be performed simply and safely.

Further, since the hollow body is constituted by the flexible hose 30 which can be folded flat and the small diameter pipe 33 spirally wound around the outer circumference of the flexible hose, the transportation can be performed in a space-saving manner and the pipeline It can be easily inserted into the inside. In addition, simply by injecting the pressurized fluid L1 into the small-diameter pipe 33, the hollow body is formed by simply and reliably expanding into a cylindrical shape, so that the work is also easy. Furthermore, if air or the like is used as the pressurized fluid L1, it also has a function as a heat insulating material.

Further, a pipe rehabilitation apparatus 300 and a method thereof according to a third embodiment will be described with reference to FIGS. This achieves the second object of the present invention together with the second embodiment. The insertion member 15 is constituted by inner and outer double soft cylinders 40 and 43, and both are partially adhered. The hollow body 160 is formed.

The hollow body 160 is made of an inner and outer double soft cylindrical body 4.
As shown in (S) in the figure, a portion between 0 and 43 is formed of a cylindrical body partially adhered, and the outer soft cylindrical body has airtightness. The outer diameter D1 is set to about 1/2 to 2/3 of the outer diameter D of the repair material 13. Further, the hollow body 160 as the insertion member is set to be substantially the same as or slightly longer than the length of the repair material 13 so as to penetrate the inside of the repair material 13, and a supply hose 22 for the pressurized fluid L1 is provided at one end thereof. It is connected. As a result, the hollow body 160 expands due to the supply of the pressurized fluid L1 and narrows the internal space E of the repairing material 13 with a strength that does not completely flatten with the pressing force of the repairing material against the inner wall of the pipe. Passage 160A
Into a hollow cylindrical body. Even when the pressurized fluid L is injected into the repair material 13, the passage 160 </ b> A is secured as in the case of 160 ′, and the hollow passage 160 </ b> A is formed.
From the drain water W. Repair material 13 and insertion member 1
5 is sealed at both ends of the repair material 13 and the internal space E is sealed. In addition, the inner and outer double soft cylinder 4
0, 43 may be adhered in a linear or planar manner.

Structures other than those described above are the same as those of the pipeline rehabilitation device 100 of the first embodiment, and are denoted by the same reference numerals, and description thereof is omitted.

The pipeline rehabilitation device 300 of the present invention is configured as described above, and operates as follows. First, the in-plant process and the on-site process of the pipeline rehabilitation device 300 of the present invention are executed in the same manner as in the first embodiment, as shown in FIG.

In the rehabilitation work, a flexible tubular repair material 13 impregnated with an uncured curable resin is inserted and arranged in the pipe 10. Next, the pressurized fluid L1 is injected and expanded into the flexible hollow body 160 previously inserted into the repair material 13 and narrowing the internal space E of the repair material 13. At this time, in order to have a function as a heat insulating material, a material having a low thermal conductivity such as air may be used as the pressurized fluid L1 as in the first embodiment. Subsequently, by injecting the pressurized fluid L into the internal space E in the sealed repair material 13,
The repair material 13 is pressed against the pipe inner wall 10A to cure the curable resin and repair the inside of the pipe 10. At this time, the drainage W flowing in the pipeline 10 flows downstream through the passage 160A formed in the axial center of the repair material.

As described above, according to the third embodiment of the present invention, the following effects can be obtained. First, since it is a rehabilitation device and method in which the insertion member is a cylindrical hollow body 160, the internal space in the repairing material 13 can be narrowed to reduce the amount of pressurized fluid to be injected, and formed at the axial center thereof. Since the drainage W can be smoothly passed through the passage 160A, a water refilling work is not required, and the pipe rehabilitation work can be performed simply and safely.

Further, since the hollow body 160 is formed of an inner and outer double soft cylinder and a cylindrical body in which the inner and outer double soft cylinders are partially adhered, transport can be performed in a space-saving manner. At the same time, it can be easily inserted into the pipeline. In addition, since the hollow body can be expanded simply by injecting the pressurized fluid L1 into the cylindrical body, the work is easy, and if air or the like is used, it can also function as a heat insulating material. As described in detail above, the insertion member can be flatly housed, has flexibility to be inserted into the pipeline from the manhole, and is completely pressed by the pressing force of the repairing material to the pipeline inner wall. It is preferable that the hollow body has an airtight outer wall having strength that does not become flat.

[0045]

According to the first aspect of the present invention, since the rehabilitation method for inserting and arranging a flexible insertion member for narrowing the internal space in the repair material to seal the interior space, the internal space in the repair material is used. And the flow rate of the pressurized fluid to be injected can be reduced, and the pipe rehabilitation work for drainage pipes and the like can be performed economically in a short time.

Further, the invention according to claim 2 is provided with a flexible insertion member which is inserted into the repair material to narrow the internal space thereof, so that the pressurized fluid to be injected by narrowing the internal space in the repair material is provided. The flow rate can be reduced. Thereby, pipe rehabilitation work of drainage pipes and the like can be performed economically in a short time.

According to the third aspect of the present invention, since the insertion member is a rehabilitation method in which the insertion member is a cylindrical hollow body, the internal space in the repair material is narrowed, and the flow rate of the pressurized fluid to be injected can be reduced. Drainage can be smoothly passed through the passage formed in the axial center. Thereby, while the pipe rehabilitation work such as the drain pipe can be economically performed in a short time, a water refilling operation is not required, and the pipe rehabilitation work can be easily and safely performed.

According to the fourth aspect of the present invention, since the insertion member is a hollow body, the internal space in the repairing material is narrowed, and the flow rate of the pressurized fluid to be injected can be reduced. Furthermore, the drainage can be smoothly passed through the passage formed in the axial center of the hollow body. Thereby, while the pipe rehabilitation work such as the drain pipe can be economically performed in a short time, a water refilling operation is not required, and the pipe rehabilitation work can be easily and safely performed.

Further, the invention according to claim 5 is constituted by a soft hose whose hollow body can be folded flat and a small-diameter tube spirally wound around the outer periphery of the soft hose, so that the repair material is inserted into the repair material. The hollow body can be easily inserted, the space can be saved in a folded state, and the hollow body can be easily and reliably expanded simply by injecting the pressurized fluid into the small-diameter pipe, and the drain pipe, etc. Can be performed with a small amount of pressurized fluid while draining water.

According to a sixth aspect of the present invention, the hollow body is formed of an inner and outer double soft cylinder which can be folded flat, and the inner and outer double soft cylinders are partially adhered to each other. Since it is shaped like a body, it can be easily inserted into the repair material, and can be transported in a space-saving state in a folded state. Pipe line rehabilitation work such as pipes can be performed with a small amount of pressurized fluid while draining water.

[Brief description of the drawings]

FIG. 1 is a diagram showing a first embodiment of the present invention, and is a cross-sectional view of a pipeline rehabilitation device.

FIG. 2 is a view showing the first embodiment of the present invention, and is a partial cross-sectional view of the pipeline rehabilitation device.

FIG. 3 is a view showing the first embodiment of the present invention, and is a partial cross-sectional view of the pipeline rehabilitation device.

FIG. 4 is a view showing the first embodiment of the present invention, and is a flow chart showing a pipeline rehabilitation method;

FIG. 5 is a view showing a second embodiment of the present invention, and is a cross-sectional view of a pipeline rehabilitation device.

FIG. 6 is a view showing a second embodiment of the present invention, and is a partial view of a pipeline rehabilitation device.

FIG. 7 is a view showing a second embodiment of the present invention, and is a partial cross-sectional view of a pipeline rehabilitation device.

FIG. 8 is a view showing a third embodiment of the present invention, and is a cross-sectional view of a pipeline rehabilitation device.

FIG. 9 is a view showing a third embodiment of the present invention, and is a partial perspective view of a pipeline rehabilitation device.

FIG. 10 is a view showing a third embodiment of the present invention, and is a partial sectional view of a pipeline rehabilitation device.

FIG. 11 is a view showing an embodiment of a conventional example, and is a cross-sectional view of the entire pipeline rehabilitation device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drain pipe 3,5 Manhole 10 Pipe 10A Pipe inner wall 13 Repair material 1 Supply hose 19 Drain hose 20 Water supply truck 21 Pressurizing means 22 Supply hose 30 Soft hose 33 Small diameter pipe 40,43 Soft cylinder 150,160 Hollow Body 150A, 160A Passage 100, 200, 300 Pipeline rehabilitation device L1, L2 Pressurized fluid E Internal space S Welding part W Drainage

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[Procedure amendment]

[Submission date] December 6, 1996

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG. 2

FIG. 3

FIG.

FIG. 5

FIG. 6

FIG. 4

FIG. 7

FIG. 8

FIG. 9

FIG. 10

FIG. 11

Claims (6)

[Claims] 1. A repair material, comprising: forming a flexible tubular repair material impregnated with an uncured curable resin; and inserting a flexible insertion member for narrowing the internal space into the repair material. In a state in which the internal space between the and the insertion member is sealed, and the repair material is inserted and arranged in the pipeline, the repair material is injected into the internal space of the repair material by applying a pressurized fluid, thereby allowing the repair material to pass through the inner wall of the pipeline. And a method for repairing the inside of the pipe by curing the curable resin. 2. A flexible tubular repair material inserted and arranged in a conduit and impregnated with an uncured curable resin, and a repair material obtained by injecting a pressurized fluid into an internal space of the repair material. Pipe rehabilitation device such as a drain pipe having a pressurizing means for pressing a pipe against the inner wall of a pipe, comprising a flexible insertion member inserted into the repair material to narrow the internal space thereof, and A pipe rehabilitation device such as a drain pipe, wherein an internal space between members is sealed. 3. The insertion member is formed as a cylindrical hollow body to narrow an internal space in the repair material, and to allow drainage to pass through the repair material by a passage penetrating through an axial portion thereof. 2. The method for rehabilitating a drainage pipe or the like according to claim 1, wherein: 4. The insert member has a hollow body in which an internal space in the repair material is narrowed and a passage for allowing drainage to pass through an axis of the insert material is penetrated into the repair material. Rehabilitation equipment for drainage pipes. 5. The hollow body is composed of a flexible hose that can be folded flat and a small-diameter tube spirally wound around the outer periphery of the soft hose, and by injecting a pressurized fluid into the small-diameter tube. 5. The method according to claim 4, wherein the expansion is performed in a hollow shape.
A pipe rehabilitation device such as a drain pipe described in the above. 6. The hollow body is formed of an inner / outer double soft cylindrical body that can be folded flat, and is formed of a cylindrical body in which the inner / outer double soft cylindrical body is partially adhered. 5. The pipeline rehabilitation device according to claim 4, wherein the device is expanded into a hollow shape by injecting a pressurized fluid into the body.