KR102524445B1 - Rehabilitating sheet assembly and pipe rehabilitating method - Google Patents

Abstract

A regeneration sheet assembly and a regeneration method using the same are disclosed. The regeneration sheet combination of the present invention includes an arm fastening portion disposed at a separated end of a regeneration sheet providing a space in which a filler containing mortar is filled in a sewage pipe to be rehabilitated; and a male fastening part disposed inside the rehabilitation sheet in a direction opposite to the female fastening part and coupled to the female fastening part, wherein the female fastening part and the male fastening part are fitted together.

Description

Rehabilitation sheet assembly and rehabilitation method using the same {REHABILITATING SHEET ASSEMBLY AND PIPE REHABILITATING METHOD

The present invention relates to a rehabilitation sheet assembly and a rehabilitation method using the same, and more particularly, to a rehabilitation sheet used for directly rehabilitating (including repairing and reinforcing) a sewage pipe buried underground without excavating the ground or a road in the sewer pipe. It relates to a combination and a rehabilitation method using the same.

When the sewage pipe is aged, structural defects such as cracks in a part of the pipe, breakage, corrosion, abrasion, or separation of joints occur in the sewer pipe.

The defective part of the sewage pipe becomes a passage through which various sewage and/or wastewater flows to the ground, contaminating soil and groundwater and further causing ground subsidence.

In addition, dirt is accumulated in the local ground subsidence section in the sewer pipe, causing odor, and furthermore, problems such as slowing or stopping the flow of sewage and / or sewage in the sewer pipe occur, so replacing or repairing and reinforcing the sewer pipe is necessary. It is required.

Rehabilitation methods for old or defective sewage pipes can be largely divided into replacement methods (excavation methods) and non-excavation method reinforcement and repair methods.

The excavation replacement method is a method of replacing the pipe itself after excavating the ground or road. In this method, traffic in the construction section must be completely blocked, so long-term traffic congestion is unavoidable, there is a problem of dust and noise due to road excavation, and indirect construction costs such as installation of temporary facilities to repair sewage pipes are required, so indirect construction costs are added. In addition, there are problems such as ground subsidence due to sewage leakage, and costs increase due to the need for ground reorganization and resurfacing of excavated roads after construction is completed.

Therefore, in recent years, non-drilling replacement and rehabilitation methods have been used to directly replace and rehabilitate (including repair and reinforcement) sewage pipes buried underground without excavating the ground or roads in the sewage pipes. Specifically, this method allows the sewer pipe to be replaced and rehabilitated quickly without excavating the ground, and the joint of the branch pipe connected to the sewer pipe can continuously play a drainage role, thereby reducing work efficiency and work time. There is an advantage to being

The foregoing technical configuration is a background technology for helping understanding of the present invention, and does not mean the prior art widely known in the technical field to which the present invention belongs.

Korean Patent Registration No. 10-2116660 (Hanyang E&C Co., Ltd.) 2020. 05. 25.

Therefore, the technical problem to be achieved by the present invention is to provide a regeneration sheet combination and a rehabilitation method using the same that can stably and efficiently replace or rehabilitate (including repair and reinforcement) old or damaged sewage pipes in a non-drilling method.

According to one aspect of the present invention, the arm fastening portion disposed at the separated end of the rehabilitation sheet for providing a space portion in which the filler containing mortar is filled in the sewage pipe to be rehabilitated; and a male fastening part disposed inside the rehabilitation sheet in a direction opposite to the arm fastening part and coupled to the arm fastening part, wherein the female fastening part and the male fastening part are fitted and coupled to each other. can

The male fastening part may include a male base body disposed inside the rehabilitation sheet; and a fastening body provided on the male base body and coupled to the arm fastening part through the separated end of the rehabilitation sheet.

The male fastening part may further include a stopper protrusion provided on the fastening body and coupled to a stopper groove of the arm fastening part.

The male fastening part may further include a bent body provided from both ends of the male base body toward the arm fastening part and supporting the bent part of the regeneration sheet.

The arm fastening part may include an arm base body disposed outside the rehabilitation sheet; and a post body provided on the arm base body and into which the fastening body is inserted and coupled.

The female fastening part and the male fastening part may be made of PVC, PET, PE or recycled PET.

The female and male coupling parts may further include an additive, and the additive may include graphene, glass fiber, aramid, or a modifier.

a watertight member provided on at least one of the female fastening part and the male fastening part; and at least one of a fastening member coupled to the female fastening part and the male fastening part to fix the regeneration sheet to the sewer pipe.

In addition, according to another aspect of the present invention, the step of arranging the rehabilitation sheet with both ends separated in the sewer pipe to be rehabilitated; combining the separated ends of the regeneration sheet into a regeneration sheet assembly composed of an arm fastening part and a male fastening part; and fixing the regeneration sheet assembly to the sewer pipe with a fastening member.

The method may further include supporting an inner wall of the rehabilitation sheet with a support before coupling the rehabilitation sheet assembly to the rehabilitation sheet.

Embodiments of the present invention can reliably and efficiently replace or rehabilitate (including repair and reinforcement) old or damaged sewage pipes in a non-drilling method.

In addition, it is possible to conveniently and quickly combine the regeneration sheets separated at both ends with the regeneration sheet assembly.

Furthermore, it is possible to prevent separation or injury of the rehabilitation sheet by a fastening member coupled to an old or damaged sewer pipe through the rehabilitation sheet assembly.

In addition, since the inner wall of the regeneration sheet can be supported by the support, adhesion to old or damaged sewage pipes can be increased.

1 is a view schematically showing a rehabilitation sheet assembly according to an embodiment of the present invention.
FIG. 2 is a state diagram showing the state of use of the rehabilitation sheet assembly shown in FIG. 1;
3 is a view schematically illustrating a process of providing a bent portion in a regeneration sheet applied to the present embodiment.
FIG. 4 is a view showing that the bent part of the regeneration sheet is supported on the male fastening part as another embodiment of the male fastening part shown in FIG. 1 .
FIG. 5 is a view schematically showing that a fastening member is coupled to a male fastening part as another embodiment of the female fastening part shown in FIG. 1 .
6 is a flowchart schematically illustrating a rehabilitation method according to an exemplary embodiment.

In order to fully understand the present invention and the advantages in operation of the present invention and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like members.

1 is a view schematically showing a regeneration sheet combination according to an embodiment of the present invention, FIG. 2 is a state diagram of a use state of the regeneration sheet combination shown in FIG. 1, and FIG. 3 is a regeneration sheet applied to this embodiment. It is a view schematically showing a process of preparing a bent part, and FIG. 4 is a view showing that the bent part of the regeneration sheet is supported by the male fastening part as another embodiment of the male fastening part shown in FIG. 1, and FIG. As another embodiment of the arm fastening part shown in , it is a view schematically showing that the fastening member is coupled to the male fastening part, and FIG. 6 is a flowchart schematically showing a rehabilitation method according to this embodiment.

As shown in these drawings, the regeneration sheet assembly 1 according to the present embodiment is an arm disposed at a separated end of a regeneration sheet 10 providing a space in which a filler containing mortar is filled in a sewage pipe to be rehabilitated. The fastening part 100, the male fastening part 200 disposed inside the rehabilitation sheet 10 in the opposite direction to the arm fastening part 100 and coupled to the arm fastening part 100, and the arm fastening part 100 ) And the watertight member 300 provided on at least one of the water fastening parts, and the fastening member 400 coupled to the female fastening part 100 and the male fastening part 200 to fix the regeneration sheet 10 to the sewer pipe provide

As shown in FIG. 2 , the female fastening part 100 is disposed outside the rehabilitation sheet 10 and is coupled to the male fastening part 200 to couple both ends of the separated rehabilitation sheet 10 .

In this embodiment, as shown in FIG. 2, the arm fastening part 100 is provided on the arm base body 110 disposed outside the regeneration sheet 10 and the arm base body 110, and the fastening body ( 220) includes a post body 120 into which it is inserted and coupled.

As shown in FIG. 1 , the arm base body 110 of the arm fastening part 100 may have a rectangular cross-sectional shape, and the lower surface of the arm base body 110 may be supported on the wall of an old or damaged sewage pipe. can

As shown in FIG. 1 , the post body 120 of the arm fastening part 100 is provided to protrude from the upper surface of the arm base body 110 in the direction of the male fastening part 200. It may be provided as a coupling place of the fastening body 220 of.

As shown in FIG. 1 , a stopper groove 121 may be provided on the inner wall of the post body 120 in this embodiment. In the present embodiment, the stopper protrusion 221 of the male fastening part 200 may be caught and coupled to the stopper groove 121 .

In this embodiment, the stopper groove 121 may be provided in a plurality spaced apart in the height direction of the post body 120 .

Also, in this embodiment, the female fastening part 100 may be made of PVC, PET, PE or recycled PET, which may be equally applied to the male fastening part 200. In addition, in the present embodiment, the female fastening part and the male fastening part may be provided by further adding functional additives, such as graphene, glass fiber, aramid, and a modifier. In this case, performance such as chemical resistance and impact strength can be increased.

Meanwhile, in this embodiment, as shown in FIG. 5 , the arm fastening part 100a is provided with a plurality of stopper grooves 121 in the arm base body 110 without providing the post body 120. can In this case, the height corresponding to the post body 120 can be lowered, and the end of the rehabilitation sheet 10 or the bent portion 11 of the rehabilitation sheet 10 is connected to the female fastening part 100 and the male fastening part 200. can be made more closely.

As shown in FIG. 2 , the male fastening part 200 is disposed outside the rehabilitation sheet 10 and can couple both ends of the separated rehabilitation sheet 10 by being coupled with the male fastening part 200 .

In this embodiment, as shown in FIG. 2, the male fastening part 200 is provided on the male base body 210 disposed inside the rehabilitation sheet 10 and the male base body 210, and the rehabilitation sheet ( 10) and includes a fastening body 220 coupled to the arm fastening part 100 through the separated end.

As shown in FIG. 1 , the male base body 210 of the male fastening part 200 may have a rectangular cross-sectional shape, and the upper surface of the male base body 210 is coupled with the female fastening part 100. An external force may be applied.

As shown in FIG. 1, the fastening body 220 of the male fastening part 200 is provided to protrude from the bottom surface of the male base body 210 in the direction of the female fastening part 100. It can be engaged with the post body 120 of the.

In this embodiment, as shown in FIG. 1, a stopper protrusion 221 is provided at the end of the fastening body 220, and the stopper protrusion 221 is selected from among a plurality of stopper grooves 121 provided on the poster body. It may be engaged with the stopper groove 121 . In this embodiment, the stopper protrusion 221 is engaged with the stopper groove 121, and the stopper groove 121 is provided in plurality, so that the arm fastening part 100 and The coupling height of the male fastening part 200 can be adjusted.

On the other hand, in this embodiment, as shown in FIGS. 4 and 5, the male fastening part 200a is provided to be bent in the direction of the female fastening part 100 at both ends of the male base body 210, and the rehabilitation sheet 10 ) May further include a bent body 230 supporting the bent portion 11 .

In this embodiment, since the arm fastening part 100 and the male fastening part 200 can be coupled in a state where the end of the bent part 11 is accommodated in the bent body 230, the bonding strength of the rehabilitation sheet 10 can be improved. and can stably maintain the bonded state even after the two are bonded.

As shown in FIG. 1, the watertight member 300 is provided in an area where the female fastening part 100 and the male fastening part 200 come into contact when they are coupled to prevent water from leaking out of the rehabilitation sheet 10. It can be prevented.

In this embodiment, the watertight member 300 may be made of a known material that increases in volume up to 100 times when in contact with water.

In addition, in this embodiment, as shown in FIG. 1, the watertight member 300 includes the upper surface of the arm base body 110, the outer wall of the post body 120, the lower surface of the male base body 210, and fastening. It may be provided on the outer wall of the body 220.

Furthermore, in this embodiment, the watertight member 300, as shown in Figs. 4 and 5, in the case of the male fastening part 200 may be provided only on the lower surface of the male base body 210.

As shown in FIG. 5, the fastening member 400 is first coupled to the male fastening part 200, and then the lower end penetrates the female fastening part 100 and is coupled to the old or damaged sewage pipe to rehabilitate the seat 10 It can prevent separation or injury (floating).

In this embodiment, a screw thread is provided on the outer wall of the fastening member 400 to be coupled to the female fastening part 100 and the male fastening part 200, and the end is provided to be sharp so that it can be coupled to an old or damaged sewage pipe.

Hereinafter, the regeneration method of this embodiment will be briefly described.

In the rehabilitation method using the regeneration sheet combination according to the present embodiment, the regeneration sheet 10 with both ends separated is disposed in a sewage pipe to be rehabilitated (S10), and the separated both ends of the regeneration sheet 10 are connected to the arm fastening portion (S10). 100) and the male fastening part 200, including a step (S20) of coupling the regeneration sheet assembly 1 to the sewer pipe with a fastening member 400 (S30). can do.

In this embodiment, before combining the regeneration sheet 10 into the regeneration sheet assembly 1, as shown in FIG. can provide. As shown in (b) of FIG. 4 , the bent portion 11 may be supported by a bent body.

In addition, in this embodiment, before coupling the rehabilitation sheet coupling body 1 to the rehabilitation sheet 10, as shown in FIG. 2, the support 20 may support the inner wall of the rehabilitation sheet 10. In this case, the inner wall of the regeneration sheet 10 can be supported by the support 20, so that adhesion to old or damaged sewage pipes can be increased.

As shown in FIG. 2 , the support 20 in the present embodiment includes a support body 21 and a plurality of support legs provided in the support body 21 to be adjustable in length and supporting the inner wall of the rehabilitation sheet 10. (22).

In this embodiment, the plurality of support legs 22 are screwed to the support body 21 or connected to an elastic member such as a spring provided inside the support body 21 so that the length thereof can be adjusted with an elastic force.

In addition, in this embodiment, the plurality of support legs 22 may be hydraulically operated like cylinders.

As described above, this embodiment can reliably and efficiently replace or rehabilitate (including repair and reinforcement) old or damaged sewage pipes in a non-drilling method. In addition, it is possible to conveniently and quickly combine the regeneration sheets separated at both ends with the regeneration sheet assembly. Furthermore, it is possible to prevent separation or injury of the rehabilitation sheet by a fastening member coupled to an old or damaged sewer pipe through the rehabilitation sheet assembly. In addition, since the inner wall of the regeneration sheet can be supported by the support, adhesion to old or damaged sewage pipes can be increased.

As such, the present invention is not limited to the described embodiments, and it is obvious to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, it should be said that such modifications or variations fall within the scope of the claims of the present invention.

1: regeneration sheet assembly
100,100a: arm fastening part 110: arm base body
120: post body 121: stopper groove
200,200a: male fastening part 210: male base body
220: fastening body 221: stopper protrusion
230: bending body 300: watertight member
400: fastening member 10: regeneration sheet
11: bending part 20: support
21: support body 22: support leg

Claims (10)

It is disposed at a separated end of a regeneration sheet for providing a space in which a filler containing mortar is filled in a sewage pipe to be rehabilitated, and an arm base body disposed outside the regeneration sheet and a post body provided on the arm base body Arm fastening part comprising; and
A male base body disposed inside the regeneration sheet in a direction opposite to the arm fastening part and coupled to the arm fastening part, and disposed on the inside of the rehabilitation sheet, and provided on the male base body, and A fastening body passing through the separated end and coupled to the arm fastening unit, a stopper protrusion provided on the fastening body and coupled to a stopper groove of the arm fastening unit, and provided from both ends of the male base body in the direction of the arm fastening unit, A male fastening part including a bent body supporting the bent part of the sheet,
A watertight member provided on at least one of the female fastening part and the male fastening part;
Further comprising at least one of a fastening member coupled to the female fastening part and the male fastening part to fix the regeneration sheet to the sewer pipe,
The regeneration sheet assembly in which the fastening body of the male fastening part is inserted into the post body of the female fastening part and fitted. delete delete delete delete The method of claim 1,
The female fastening part and the male fastening part are made of PVC, PET, PE or recycled PET. The method of claim 6,
The female fastening part and the male fastening part are provided by further including an additive,
The additive is graphene, glass fiber, aramid, or a regeneration sheet assembly containing a modifier. delete delete delete

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