KR100697718B1 - Repairing apparatus of non-excavation type for sewer pipe using PVC tube and methods of the same - Google Patents

Abstract

The present invention relates to a non-excavated part repairing apparatus and its method using a sewer pipe using a PVC tube, more specifically, the tube is made of PVC, lightweight, convenient and safe, as well as to repair a large diameter sewer pipe or a long section It also relates to a suitable maintenance device and its method. To this end, the non-excavation part repair method using the PVC tube of the present invention, (a1) is made of PVC can be folded, the hollow portion in which the body of the repair device can be inserted in the center and the outer diameter is the inner diameter of the sewer pipe Manufacturing a tube corresponding to the; (b1) wrapping the reinforcement around the tube; (c1) inserting the body into the hollow portion of the tube; And (d1) inserting a repair device into the repair target section of the sewer pipe, and injecting compressed air into the tube so that the reinforcing material is in close contact with the sewer pipe.

Sewer Pipe, PVC, Tube, Repair, Non Excavation

Description

Repairing apparatus of non-excavation type for sewer pipe using PVC tube and methods of the same}

1 is a flowchart illustrating a process of repairing a sewer pipe using a repair device according to a first embodiment of the present invention.

2 is a perspective view showing a maintenance device according to a first embodiment of the present invention;

3 and 4 are cross-sectional views sequentially showing the repair of the sewer pipe using the repair device of FIG. 2, respectively.

5 is a flowchart illustrating a process of repairing a sewer pipe using a repair device according to a second exemplary embodiment of the present invention.

Figure 6 is an exploded perspective view showing a frame of the repair device according to a second embodiment of the present invention.

7 and 8 are cross-sectional views sequentially showing the repair of the sewer pipe using the repair device of FIG. 6, respectively.

9 is a flowchart illustrating a process of repairing a sewer pipe using a repair device according to a third embodiment of the present invention.

10 is a perspective view of the maintenance device of FIG.

FIG. 11 is a sectional view taken along the line XI 'of FIG.

12 is a cross-sectional view showing the repair of the sewer pipe using the repair device of FIG.

13 is a perspective view showing a work table used in the repair method of FIG.

14 is a flowchart illustrating a process of repairing a sewer pipe using a repair device according to a fourth embodiment of the present invention.

15 is a perspective view of a maintenance device according to a fourth embodiment of the present invention;

16 and 17 are cross-sectional views sequentially showing the repair of the sewer pipe using the repair device of FIG.

<Explanation of symbols for the main parts of the drawings>

1, 1b, 1c: sewer pipe 10, 10a, 10b, 10c: tube

15 pipe member 20 reinforcement

22: cover member 40, 40a: frame

50: compressed air supply pipe 60: working table

100, 100a, 100c: Repair device for unexcavated part by sewer pipe using PVC tube

The present invention relates to a non-excavated part repairing apparatus and its method using a sewer pipe using a PVC tube, more specifically, the tube is made of PVC, lightweight, convenient and safe, as well as to repair a large diameter sewer pipe or a long section It also relates to a suitable maintenance device and its method.

In general, sewage pipes buried underground such as concrete fume pipes, vinyl chloride pipes made of synthetic resin, and conduits have defects such as cracks, breakage or disconnection due to aging of the pipe itself, ground subsidence, or earth pressure change from the ground. Can be generated. When such a defect occurs in the sewage pipe, the waste water flowing inside the sewage pipe flows out into the ground through the defective portion. Spilled waste water contaminates soil and groundwater.

As a method for repairing a faulty sewer pipe, a grouting method or a lining method may be used.

The lining method of the above method is a case where the damage degree of the damage site is severe and needs a reinforcement function, for example, when the damage site of the pipeline is widely distributed, or when the damage site is formed while covering the entire inner diameter of the pipeline, a predetermined reinforcing material (lining material) Lining the inner wall of the pipeline to temporarily reinforce the damaged area.

The repair apparatus used for the lining method generally has a cylindrical frame and a packer provided around the frame. That is, the reinforcement is wrapped around the packer, the repair device is put into the repair target section of the sewer pipe, and compressed air is injected into the packer to attach the reinforcement to the inner surface of the sewer pipe. The repair device is disclosed in the structure of the Republic of Korea Patent Registration No. 10-0352831.

Since the packer is made of rubber and is highly expandable, it can be applied to sewage pipes of various diameters. However, since the rubber is heavy, it is not easy to put it in the manhole during construction, and there is a problem that the production is difficult and the manufacturing cost is high. In addition, since rubber is highly expanded, there may be a case in which the worker is injured due to the rupture sound during the construction, and the replacement of the rubber packer is not easy when the rubber is broken.

In addition, the rubber packer may not be manufactured to have a length of more than 1m. This is a rubber packer is put into the manhole coupled to the frame, the rubber packer can not have a length of more than 1m considering the diameter of the manhole inlet and the space inside the manhole. Therefore, the repair device provided with the rubber packer cannot repair a section of 1 m or more at once.

Furthermore, the rubber packer cannot be manufactured so that its diameter is 500 mm or more. This is because the inlet diameter of the manhole is approximately 600 mm. Therefore, even if the rubber packer is highly expanded, it cannot be used because the risk of explosion increases when the diameter of the sewer pipe is 800 mm or more.

The non-excavation part repair device and its method using a PVC tube of the present invention has been devised to solve the above problems, and its object is to provide a light, convenient and safe repair device and the method.

Still another object of the present invention is to provide a repair device and a method suitable for repairing a large diameter sewage pipe or a long section of 1 m or more.

In order to achieve the above object, the non-excavation part repair method using a PVC tube according to the present invention is made of (a1) PVC and can be folded, and a hollow part in which a body of the repair device is inserted in the center is formed and the outside Manufacturing a tube whose diameter corresponds to the inner diameter of the sewer pipe; (b1) wrapping the reinforcement around the tube; (c1) inserting the body into the hollow portion of the tube; And (d1) inserting a repair device into the repair target section of the sewer pipe, and injecting compressed air into the tube so that the reinforcing material is in close contact with the sewer pipe.

Preferably, the body is made of at least two sub-body is coupled along the longitudinal direction, the coupling of the sub-body is made in the manhole.

On the other hand, the sewer pipe non-excavation part repair method using a PVC tube according to the present invention, (a2) is made of PVC can be folded, manufacturing a tube whose outer diameter corresponds to the inner diameter of the sewer pipe; (b2) moving the tube and the reinforcement to the repair target section; And (c2) winding the reinforcement around the tube and injecting compressed air to expand the tube so that the reinforcement adheres to the sewer line.

Preferably, convex portions are formed at predetermined intervals on the inner circumferential surface of the tube.

More preferably, the step (b2), (b2 ') the step of inserting the workbench with a wheel and the tube and the reinforcing material into the manhole; And (b2 '') loading the tube and the reinforcement on a workbench and moving the repaired section.

More preferably, the step (c2), the step (c2 ') by injecting compressed air into the tube to expand to a predetermined size; And (c2 '') winding the reinforcement on the expanded tube and expanding the tube so that the reinforcement is in close contact with the sewer pipe.

In addition, in the sewer pipe non-excavation part repair method using the PVC tube according to the present invention, (a3) the hollow part in the center is provided with pipe members at predetermined intervals, the outer diameter corresponds to the inner diameter of the sewer pipe, and is made of PVC Preparing a tube that can be folded; (b3) wrapping the reinforcement around the tube; (c3) moving the tube and the reinforcement to the repair target section; And (d3) injecting compressed air into the tube so that the reinforcing material is in close contact with the sewer pipe.

Preferably, the step (b3) is to wrap the reinforcement using a cover member to protect the reinforcement while moving to the repair target section, step (d3) is peeled off the cover member and then injected with compressed air.

Here, the repair method preferably further comprises the step of discharging the air in the tube using the discharge member when the curing of the reinforcing material is completed.

In addition, the tube is preferably folded a predetermined number of times, it is preferably introduced into the manhole.

On the other hand, sewage pipe furnace non-excavated part repair device using a PVC tube according to the present invention, the frame having a pipe-shaped body; And it is made of PVC and can be folded, in the center is formed a hollow portion into which the body can be inserted, the outer diameter of the tube corresponding to the inner diameter of the sewer pipe; and the tube is detachably installed on the frame .

Preferably, the body is made up of at least two sub-body is coupled along the longitudinal direction.

The sewer pipe non-excavation part repair device using a PVC tube according to the present invention, the inner circumferential surface is formed with a convex portion at a predetermined interval, made of PVC can be folded and expanded to be in close contact with the sewer pipe by the inflow of compressed air Equipped.

Preferably, the repair device further includes a workbench on which a wheel is mounted to move the tube and the reinforcement and to combine at least two plates to be folded together.

The sewer pipe non-excavation part repair device using a PVC tube according to the present invention, the hollow portion is formed in the center along the longitudinal direction, the outer diameter of the corresponding to the inner diameter of the sewer pipe, made of PVC can be folded; And a pipe member disposed at predetermined intervals in the hollow portion.

Preferably, the repair device, the cover member that can cover the reinforcement to protect the reinforcement wound on the tube; And an auxiliary rope connected to the lid member to remove the lid member.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 is a flowchart illustrating a process of repairing a sewer pipe using a repair device according to a first embodiment of the present invention, and FIG. 2 is a perspective view of the repair device. 3 and 4 are cross-sectional views sequentially showing the repair of the sewer pipe using the repair device.

Referring to the drawings, the method is a step (S10) of cleaning and / or dredging the sewage pipe (1), the step (S20) to determine where the repair is necessary, and the step of wrapping the reinforcing material 20 in the tube (10) (S30), the step (S40) for putting the repair device 100 into the sewer pipe (1), the step (S50) for moving the repair device 100 to a position requiring repair, and the compressed air to the tube (10) Injecting and expanding (S60), waiting for the reinforcement 20 to cure (S70), removing the air in the tube 10 (S80), and taking out the repair apparatus 100 to the outside. It includes a step (S90). Hereinafter, the first embodiment will be described for each step.

First, the sewer pipe 1 is cleaned and / or dredged (S10). This is to accurately determine the position that needs to be repaired by removing the sediment and the waste inside the sewer pipe (1), so that the input of the repair device 100 and the attachment of the reinforcing material 20 can be easily made. The cleaning and dredging is a process that is usually included in the repair and reinforcement method of the sewer pipe (1), so a detailed description thereof will be omitted.

When the cleaning / dredging process of the sewer pipe (1) is completed, a CCTV robot (not shown) is put into the sewer pipe (1) to find a location that requires repair. The CCTV robot is a device for photographing the inside of the sewage pipe (1) and transmitting to the outside, the camera robot and a lighting to illuminate the inside of the sewage pipe (1). As for the CCTV robot, its structure is disclosed in Korean Patent Registration No. 10-0536013.

Subsequently, the reinforcing material 20 is wrapped around the tube 10 (S30).

The tube 10 has a hollow formed at the center thereof, and an inlet 11 through which compressed air is introduced. The body 41 is inserted into the hollow part, which will be described below.

Preferably, before the reinforcing material 20 is wrapped in the tube 10, the air remaining inside the tube 10 is discharged to the outside using a discharge member (not shown), for example, a vacuum suction device (not shown). . The discharge of the air remaining inside the tube 10 is to allow the reinforcement 20 to be uniformly wrapped and to prevent trouble from being introduced into the sewer pipe 1 or the manhole.

The tube 10 is made of PVC and is expanded to be in close contact with the sewer pipe 1 by the inflow of compressed air. Tube 10 made of PVC has an elongation of about 5-10% when its internal pressure is 1 kgf / cm ² , and its expandability is smaller than that of rubber packers. Accordingly, the tubes 10 are separately manufactured so that their outer diameters correspond to the inner diameters of the sewer pipes 1. On the other hand, in the present specification, 'correspondence' is in close contact with the sewer pipe (1) when the tube 10 having the elongation is inflated by the inflow of compressed air to adhere the reinforcing material 20 to the sewer pipe (1) And hardening. Preferably, the tube 10 is manufactured such that its outer diameter is about 60-70% of the inner diameter of the sewer pipe 1.

In addition, the tube 10 is made of PVC, but preferably includes strong nylon to reinforce rigidity. That is, it is a three-layer structure reinforced with rigidity by interposing strong nylon between the outer PVC layer and the inner PVC layer. On the other hand, the term "PVC tube" in the present specification is not only made of PVC, but also means a tube containing a strong nylon.

Compared with rubber, PVC is easy to be cut into the tube 10 because the cutting is easy and easily adhered by an adhesive, and the manufacturing cost is low. In addition, PVC has the advantage of being lighter than rubber, PVC tube 10 is safe because it does not occur even when broken by excessive compressed air. In addition, since the PVC tube 10 can be folded, it can be put in a folded state in the manhole in the case of constructing a large diameter shape, a long shape, a refractive type. Furthermore, the PVC tube 10 is installed in the frame 40 because the body 41 is inserted into the hollow portion, that is, the PVC tube 10 is detachably installed in the body 41. It is easier than rubber packer.

The reinforcing material 20 is widely used in the lining reinforcement method of the sewage pipe (1), the configuration thereof is disclosed in the Republic of Korea Utility Model Registration No. 0291634. Preferably, the reinforcing material 20 is a glass fiber impregnated with a resin.

After wrapping the reinforcement 20 in the tube 10, the body 41 is inserted into the hollow portion of the tube 10. That is, after separating the side member 44 of the frame 40 from the body 41, the tube 10 is installed so that the body 41 is inserted into the hollow portion. At this time, the inlet 11 of the tube 10 is to be connected to the compressed air supply pipe (50). After installing the tube 10 to the body 41, the side member 44 is coupled to the body 41 again.

Subsequently, the maintenance device 100 is introduced into the sewer pipe 1 through the manhole (not shown) (S40). After putting the repair device 100 into the sewer pipe 1, the repair device 100 is moved to a position requiring repair (S50). Movement of the repair apparatus 100 may be made by traction of a rope (not shown), or may be made by driving means (not shown) installed in the repair apparatus 100. The rope is installed in the ring 45 provided in the side member 44. In addition, a camera (not shown) may be further installed in the repair device 100 so that an operator outside the sewer pipe 1 moves the repair device 100 while observing the state of the sewer pipe 1.

When the movement of the repair apparatus 100 is completed, compressed air is injected into the tube 10 (S60). Compressed air is injected through the compressed air supply pipe (50). The tube 10 is expanded to be in close contact with the sewer pipe 1 by the inflow of compressed air, and the reinforcing material 20 wound at the tube 10 is in close contact with the inner surface of the sewer pipe 1.

After injecting compressed air into the tube 10, the expanded tube 10 is maintained as it is until the reinforcing material 20 is cured (S70).

When the hardening of the reinforcing material 20 is completed, the compressed air in the tube 10 is removed (S80) and the repair device 100 is drawn out of the sewer pipe 1. Preferably, the compressed air is removed by a discharge member (not shown), for example a vacuum suction device (not shown).

FIG. 5 is a flowchart illustrating a process of repairing a sewer pipe using a repair device according to a second embodiment of the present invention. FIG. 6 is an exploded perspective view showing a frame of the repair device. A cross-sectional view sequentially showing the repair of a sewer pipe using a repair device. The repair device 100a and the construction method are effectively used when repairing a section of about 1m.

Cleaning and / or dredging the sewage pipe (1) in the method (S10), using a CCTV robot to determine where the repair is needed (S20), and wrapping the reinforcing material 20 in the tube (10a) (S30), the step (S50) for moving the repair device 100a to a position requiring repair, and inflating the reinforcement 20 to be in close contact with the sewer pipe (1) by injecting compressed air into the tube (10a) ( S60, waiting for the reinforcing material 20 to harden (S70), removing compressed air in the tube 10a (S80), and drawing out the repair device 100a to the outside (S90). ) Can be made by the same method as each step of the above-described embodiment will be omitted here.

When the step S30 is completed, the maintenance device 100a is put into the manhole (S40 '), and the sub-bodies 42 and 43 of the repair device 100a are connected to each other in the manhole (S42). In this embodiment, the maintenance device 100a is introduced into the manhole while the sub-bodies 42 and 43 are separated. This is because the length of the body 41a is long, so that the sub-bodies 42 and 43 cannot be inserted into the manhole while being coupled.

The connection of the sub bodies 42 and 43 is made by a coupling part provided at the end of the sub bodies 42 and 43. The engaging portion has a protrusion 43a formed at one end of any one of the sub-bodies 42 and 43, and an engaging groove 42a formed at the end of any one of the sub-bodies 42 and 43. ). At least two protrusions 43a and coupling grooves 42a are preferably provided.

Preferably, the coupling groove 42a is bent to form a '-' shape. Therefore, after the protrusions 43a are inserted into the coupling grooves 42a, the sub-bodies 42 and 43 are rotated and coupled to each other, even if a tension force is applied to the sub-bodies 42 and 43. ) Can be prevented from being separated.

On the other hand, the sub-bodies 42 and 43 may be joined by other conventional coupling means. For example, a thread is formed at one end of the sub body, and a thread is formed at the end of any one of the sub bodies to form the thread to engage the sub body.

In addition, the drawing shows a body 41a consisting of two sub-bodies 42 and 43, but the body may be formed by connecting two or more sub-bodies together. That is, the length of the body 41a may be adjusted according to the length of the repair target section to be reinforced.

The tube 10a is introduced into the manhole in a folded state. Tube (10a) is made of PVC can be folded because there is an advantage that it is very convenient when manholes.

When the coupling of the sub-bodies 42 and 43 is completed, the tube 10a is installed in the frame 40a. After separating the side member 44 from the body 41a, the tube 10a is installed so that the body 41a is inserted into the hollow portion, and the side member 44 is coupled to the body 41a again. Preferably, the hollow portion is inserted into the body 41a while inserting the repair device 100a into the sewer pipe 1.

Subsequent processes may be performed by the same method as the above-described embodiment, and thus description thereof will be omitted.

9 is a flowchart illustrating a process of repairing a sewer pipe using a repair device according to a third embodiment of the present invention, and FIG. 10 is a perspective view showing a large diameter tube used in the repair device. The repairing device and the method may be effectively used when the main body of the sewage pipe 1b to be repaired has a large diameter, for example, when the inner diameter of the sewage pipe 1b is 800 mm or more, but may be applied to the sewage pipe having a small diameter.

Cleaning and / or dredging the sewage pipe (1b) in the above method (S10), using a CCTV robot to determine where the repair is necessary (S20) and waiting for the reinforcing material 20 to harden (S70), the step of removing the compressed air in the tube (10b) (S80), and the step (S90 '') withdrawing the tube (10b) and the work table 60 to the outside in the same manner as the above-described embodiment Since the description may be made, a description thereof will be omitted.

When the step S20 is completed, the tube 10b, the reinforcing material 20 and the working table 60 are introduced into the manhole (S40 ''). At this time, the tube 10b is introduced into the manhole in a folded state.

The tube 10b has a convex portion 13 formed at predetermined intervals on its inner circumferential surface as shown in Figs. Preferably, the convex portion 13 is formed along the longitudinal direction of the tube 10b. The convex portion 13 allows the inner circumferential surface of the tube 10b to easily expand. In addition, when the tube 10b expands and the convex portions 13 come into contact with each other, the adhesion to the sewer pipe 1b is further enhanced.

Subsequently, the tube 10b and the reinforcing material 20 are loaded on a work table (60 in FIG. 13) and moved to a position requiring repair (S50 ''). The work bench 60 includes a flat plate 62 rotatably coupled by a hinge and a wheel 64 provided on the bottom surface of the flat plate 62. The two flat plates 62 are connected to each other by hinges at sides that are in contact with each other. Therefore, the worktable 60 can be introduced into the manhole in a folded state, it is easy to insert the manhole. The movement is made by the worker to move the worktable 60 in the sewage pipe (1b).

When the movement is completed to the position that needs to be repaired, by injecting compressed air into the tube (10b) and primary expansion to a predetermined size (S60 ''). Compressed air is supplied to the tube 10b through the compressed air supply pipe 50 and the inlet port 11b. The primary expansion of the tube 10b is to easily install the reinforcement 20 in the tube 10b. Here, the 'predetermined size' means a size that is easy to surround the tube (10b) with the reinforcing material (20).

After the primary expansion is completed, the reinforcement 20 is wrapped in the tube 10b (S65 ''), and then the secondary expansion is injected by injecting compressed air into the tube 10b so that the reinforcement 20 is in close contact with the sewer pipe 1b. (S66 ''). The process of enclosing the reinforcement 20 in the tube 10b is performed by an operator.

Since the process after the S66 '' can be made by the same method as the above-described embodiment will be omitted herein.

14 is a flowchart illustrating a process of maintaining a sewer pipe using a repair device according to a fourth embodiment of the present invention, and FIG. 15 is a perspective view showing a repair device according to a fourth embodiment of the present invention. On the other hand, in Fig. 15, the tube 10c is represented by a dotted line. The repair device 100c and the construction method are effective for repairing a repair section of 1 m or more at once. This is because the repair device 100c can be bent, so that even if the length thereof is long, it can be introduced into the manhole or the sewer pipe 1c.

Cleaning and / or dredging the sewer pipe (1c) in the above method (S10), and checking the place that needs to be repaired using a CCTV robot (S20), and inflation by injecting air into the tube (10c) (S60), the step of waiting until the reinforcing material 20 is cured (S70), the step of removing the compressed air in the tube (10c) (S80), and the step of drawing out the repair device (100c) to the outside ( S90) can be made by the same method as the above-described embodiment will be omitted here.

When the step S20 is completed, the reinforcing material 20 is wrapped in the tube 10c, and the reinforcing material 20 is wrapped with the cover member 22 (S30 '' '). Tube 10c is made of PVC, the hollow portion 14 is formed in the center along the longitudinal direction and the outer diameter corresponds to the inner diameter of the sewer pipe (1c). That is, when the tube 10c is expanded, the reinforcing material 20 wound around it may be in close contact with the sewer pipe 1c.

The pipe member 15 is provided in the hollow part 14 of the tube 10c at predetermined intervals. Preferably, the pipe member 15 is attached to the inner circumferential surface of the tube 10c. Since the pipe members 15 are spaced apart at predetermined intervals, the repair device 100c may be bent. Therefore, the repair device 100c may be introduced into the manhole or the sewer pipe even though its length is long.

The lid member 22 is used to prevent the reinforcement 20 from being damaged while the repair device 100c is moved in the sewer pipe 1c. The lid member 22 is made of vinyl or the like. An auxiliary rope (not shown) is connected to the cover member 22. Preferably, two lid members 22 surround the reinforcement 20 with one another connected by a tape (not shown), each lid member 22 being connected with an auxiliary rope. The auxiliary rope is used to remove the cover member 22 after the movement of the repair device 100c is completed to the section to be repaired.

Preferably, before the reinforcing material 20 is wrapped in the tube 10c, the air remaining inside the tube 10c is discharged to the outside using a discharge member (not shown), for example, a vacuum suction device (not shown). . The discharge of the air remaining inside the tube 10c is to allow the reinforcement 20 to be uniformly wrapped and to prevent trouble from being introduced into the sewer pipe 1c or the manhole.

Next, the maintenance device 100c is put into the manhole (S40 '' '). As described above, since the repair device 100c can be bent, even if the length thereof is long, it can be easily introduced into the manhole.

Next, the maintenance apparatus 100c is moved to the maintenance target section (S50 '' '). Movement of the repair device 100c is achieved by pulling a towing rope (not shown) connected to the ring 45. The cover member 22 protects the reinforcing material 20 from being damaged while the repair device 100c is dragged while being in contact with the floor.

When the movement of the repair apparatus 100c is completed, the cover member 22 is removed by pulling the auxiliary rope (not shown) (S55 '″). Pulling the auxiliary ropes respectively connected to the respective cover members 22 may cut the tape (not shown) connecting the cover members 22 to each other, thereby removing the cover member 22.

Since the process after S55 '' 'may be performed by the same method as the above-described embodiment, a description thereof will be omitted.

The non-excavated part repairing apparatus and its method using the PVC tube according to the present invention has the following effects.

First, it is lighter than a rubber packer, and can be inserted into the manhole in a folded state, so the construction is convenient, and it provides a non-excavation part repair device using the safe PVC tube and a method thereof because it does not generate a rupture sound when broken.

Second, it provides a suitable repair device and construction method for repairing large diameter sewer pipes or long sections of 1m or more.

Claims (15)

(a1) manufacturing a tube which can be folded and made of PVC, in which a hollow part is formed in which a body of the repair device can be inserted and whose outer diameter corresponds to the inner diameter of the sewer pipe; (b1) wrapping the reinforcement around the tube; (c1) inserting the body into the hollow portion of the tube; And (d1) by injecting compressed air into the tube so that the reinforcement is in close contact with the sewer pipe; non-excavation part repair method using a PVC tube, characterized in that it comprises a. The method of claim 1, Body is made of at least two sub-body is coupled along the longitudinal direction, the sub-body is a sewer pipe using a non-excavated partial repair method using a PVC tube, characterized in that the coupling is made in the manhole. (a2) manufacturing a tube which can be made and folded of PVC, the outer diameter of which corresponds to the inner diameter of the sewer pipe; (b2) moving the tube and the reinforcement to the repair target section; And (c2) winding the reinforcement around the tube and injecting compressed air to expand the tube so that the reinforcement is in close contact with the sewer pipe; Non-excavation part repair method using sewer pipes, characterized in that the convex portion is formed at predetermined intervals on the inner peripheral surface of the tube. delete The method of claim 3, Step (b2), (b2 ') injecting a workbench with wheels and a tube and reinforcement into a manhole; And (b2 '') a non-excavation part repair method using a PVC tube, characterized in that it comprises a; and moving the tube and the reinforcement on the workbench to the repair target section. (A3) the hollow portion in the center of the pipe member is attached to the hollow portion at predetermined intervals, the outer diameter corresponds to the inner diameter of the sewer pipe, and manufacturing a tube that can be folded made of PVC; (b3) wrapping the reinforcement around the tube; (c3) moving the tube and the reinforcement to the repair target section; And (d3) by injecting compressed air into the tube so that the reinforcing material is in close contact with the sewer pipe; non-excavation part repair method using a PVC tube, characterized in that it comprises a. The method of claim 6, Step (b3) wraps the reinforcement using a cover member so as to protect the reinforcement while moving to the repair target section, and step (d3) removes the cover member and injects the compressed air to the PVC tube. Non-excavation part repair method using sewage pipe. The method according to claim 1 or 6, When the hardening of the reinforcing material is completed, the non-excavation part repair method using a PVC tube, characterized in that it further comprises the step of discharging the air in the tube using the discharge member. The method according to claim 1 or 3, After the predetermined number of times the tube is folded, sewer pipe using a non-excavation part repair method using a PVC tube, characterized in that the input into the manhole. A frame having a pipe-shaped body; And It is made of PVC and can be folded, in the center is formed a hollow portion into which the body can be inserted, the outer diameter of the tube corresponding to the inner diameter of the sewer pipe; and the tube is detachably installed in the frame Non-excavation part repair device for sewage pipe using PVC tube. The method of claim 10, The body is a non-excavated partial repair device using a sewer pipe, characterized in that the at least two sub-body is coupled along the longitudinal direction. Convex parts are formed at predetermined intervals on the inner circumferential surface and made of PVC can be folded and provided with a tube that can be expanded to be in close contact with the sewer pipe by the inflow of compressed air, sewer pipe non-excavation part repair device using a PVC tube. The method of claim 12, The wheel is installed on the lower surface (bottom) can be carried with the tube and reinforcement, and at least two or more flat plate sewer pipe using a non-excavation part repair device, characterized in that it further comprises a workbench combined to be folded together . A hollow portion is formed in the center along the longitudinal direction, the outer diameter of which corresponds to the inner diameter of the sewer pipe, made of PVC can be folded tube; And And a pipe member adhered to the hollow portion at predetermined intervals, wherein the non-excavated part repairing apparatus using the PVC tube can be bent. The method of claim 14, A cover member capable of covering the reinforcement to protect the reinforcement wound around the tube; And And a supplementary rope connected to the cover member so that the cover member can be removed.

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