KR100926947B1 - Water pipeline repairing method of not-digging type - Google Patents

Abstract

PURPOSE: A water pipe renovation inverting method of a pipe partial cutting type and a pipe cleaning method are provided to prevent the water leakage in spite of the ground settlement or the high-level vibration by welding a cut portion of a working pipe. CONSTITUTION: A water pipe renovation inverting method of a pipe partial cutting type is composed of the steps of constructing a cut portion(10) by cutting a part of a water supply pipe(1), and welding a cylindrical hollow work pipe to the cut portion to be inclined upward within 20-80° range about the water supply pipe. The working pipe has a lower rim(21) and an upper opening(22). The shape of the lower rim is corresponded to the rim of the cut portion. The reinforcing tube is advanced to the lower direction and the water supply pipe is repaired by processing the front end of the reinforcing tube after a reinforcing tube is advanced to the inside by the inversion construction method through the opening of the inclined working pipe.

Description

Water Pipeline Repairing Method of Not-Digging Type

The present invention relates to a water pipe rehabilitation reversal method for repairing and reinforcing the inner wall of the water supply pipe by reversing the protection tube, by installing a sloped working pipe after the incision without installing all the water pipes, The present invention relates to a water pipe rehabilitation reversal method of a water pipe partial cut-off method that is easy to install, saves construction cost, and easily inserts a protective tube.

Republic of Korea Patent No. 10-0615070 (non-excavation pipeline repair method and apparatus of water supply and sewage pipes, hereinafter referred to as 'prior art 1'), "the process of coupling the connection tube to the outlet of the known inverting device, the end of the connection tube Coupling the L-shaped connection holder to the reinforcement tube, the reinforcing tube wound on the drum while the wire is connected to the reversing device, passing through the connection tube and the connection holder, and then being fixed to the front end of the connection holder. The air pressure or water pressure in the device is reversed into the interior of the water supply and sewage pipe, the process of being fitted, the process of installing a blocking pipe spaced a certain distance at the tip of the water supply and drain pipe, discharge valve on the reinforcement tube exposed between the water and sewer pipe and the blocking pipe The process of installing the process, blowing hot air from the reversing device to the reinforcement tube to cure the reinforcement tube, Non-excavation pipeline repair method for water and sewage pipes, characterized in that the cutting process. "

Republic of Korea Patent No. 10-0764878 (end treatment method and end treatment sleeve of the non-excavated total repair rehabilitation pipe, hereinafter referred to as "prior art 2"), "the process of cutting a part of the rehabilitation pipe 10 by removing And, the process of fitting the coupling device 30 to the outside of the rehabilitation pipe 10 by using the cut portion of the rehabilitation pipe 10, respectively, and the rehabilitation pipe (10) in accordance with the cut portion of the rehabilitation pipe (10) The process of fitting the connecting pipe 20 to be connected to) and the coupling device 30 to cover the outer pipe 10 and the outside of the connection pipe 20 to fix the connection pipe 20 to the rehabilitation pipe (10) In carrying out the process,

The process of fitting the sleeve 50 to the end of the rehabilitation tube 10 is the engaging portion 52 of the sleeve 50 toward the regeneration tube 10 at the cut portion of the rehabilitation tube 10, the rehabilitation tube ( The fitting portion 51 of the sleeve 50 is inserted into the resin layer 12 of the 10, but the packing 53 is fitted to the outer side of the fitting portion 51 to perform a process of close contact with the resin layer 12 After the connecting pipe 20 is inserted into the coupling device 30, the process of the end treatment method of the non-excavated total repair rehabilitation pipe, characterized in that performing a process. "

1 is a construction state diagram for repairing the water supply conduits by the conventional inverted method (Fig. 6 of the prior art 1), Figure 2 is a construction state diagram for repairing the water conduit by the conventional inversion method (prior art 1 6).

As shown in FIG. 1, Patent No. 10-0615070 according to the prior art (Prior Art 1) is a non-excavation pipe repair method is a trench at a predetermined interval (for example, 100 ~ 200M) and then the water pipe After cutting for a certain length, take out and cut the protective tube by reversing method. As shown in Fig. 2, No. 10-0764878 according to the prior art (Prior Art 2) is a state in which a sleeve is placed after connecting a cut portion of the water pipe, in which the construction of the protection tube is completed by the prior art 1, to the connection pipe. At the two couplings located on both sides of the connector.

In the case of the prior art, the construction of the water supply pipe must be completely cut and removed, and the construction of the water supply pipe is complicated and requires a lot of materials because the separate water supply pipe must be connected by a separate coupling device. There was this.

In addition, when the coupling of the coupling device is loose due to ground subsidence or vibration, there is a high risk of water leakage into the gap between the water supply pipe and the connection pipe. In addition, the water pipe has a problem that the protective tube is coated, but the protective tube is not present in the connection pipe portion, so that the finish of the protective tube formed at the end of the water pipe is peeled off by the resistance of the water flow, thereby leaving the protective tube.

The present invention is installed by the inverted method by installing the inclined working pipe after cutting only a part of the water pipe without cutting all, the water pipe during the construction according to the prior art completely cut the combined water pipe portion combined with the connection pipe It is to provide a water pipe rehabilitation reversal method of the water pipe partial cut-off method that solves the problem of complicated construction steps and high construction cost because it must be combined with the device.

In addition, by welding the working pipe to the incision to provide a non-cutting reversal repair method without fear of leakage despite ground subsidence, high-level vibration and the like. In addition, it is possible to overlap the protective tube that allows the protective tube to be continuously installed in the water supply pipe without the disconnection of the protective tube by the finishing work through the working tube, so that the finish of the conventional protective tube is peeled off by the resistance of the water flow. This is to provide a water pipe rehabilitation reversal method of the water pipe partial cutting method that solves the problem of deviation.

In order to achieve the object of the present invention, the water pipe regeneration construction method of the water pipe partial cutting method according to the present invention, the step (S1) to break the ground at a predetermined interval to expose a portion of the water pipe (1) In the repairing method of the water conduit comprising a step (S10) for constructing the incision 10 by cutting a portion thereof without cutting the water conduit (1);

The hollow tubular work tube 20 having a lower edge 21 having a shape corresponding to the edge 11 of the cutout 10 and having an opening 22 formed thereon is welded to the cutout 10. Combined, but the step of installing a working pipe 20 in the incision 10 to be inclined in an upstream direction (see Fig. 1) within the range 20 ~ 80 ° compared to the water pipe (1) (S20);

The reinforcing tube 5 is introduced into the water supply pipe 1 through the opening 22 of the inclined working tube 20 by using an inversion method, and then advanced in the downstream direction to construct the reinforcing tube 5 and the tip thereof. It is configured to include; processing (S30) to repair the water pipe (1).

According to the present invention solves the problems of the prior art, by installing a sloped working pipe after cutting only a part of the water pipe without cutting all the construction by inverted method, the construction of the water pipe is part of a simple construction and the construction cost is reduced A water pipe rehabilitation reversal method is provided.

In addition, by welding the work pipe to the incision to provide a water pipe rehabilitation reversal method of the water pipe partial cut-off method without fear of leakage despite ground subsidence, high-level vibration and the like.

In addition, the water pipe can solve the problem that the end of the conventional protection tube is separated from the water supply pipe by the overlapping construction of the protection tube that allows the protective tube is continuously installed in the water supply pipe without being disconnected by the finishing work through the working pipe. Non-cut reversal repairs are provided.

In addition, the present invention enters the protective tube into the working tube in the inclined state not perpendicular to the water supply pipe. Therefore, since the entrance angle (A) of the protective tube formed by the entering protective tube and the water supply pipe is reduced, the wrinkle of the protective tube generated at the point where the water conduit meets during the reverse insertion of the protective tube can be reduced, so that the protective tube can be easily reversed. The water pipe rehabilitation reversal method is provided.

In addition, the work pipe or customs work installed in the construction method of the present invention has the advantage that can simultaneously perform the doorway function of the customs cleaning device.

It will be described in detail below according to the embodiment shown in the accompanying drawings the water pipe regeneration construction method of the water pipe partial cut-off method according to the present invention.

Figure 3 is a front configuration diagram of the construction state of the water pipe partial renovation method of inverted water pipe according to an embodiment of the present invention, Figure 4 is a water pipe regeneration of the water pipe partial cut method according to an embodiment of the present invention Construction state diagram of the construction reversal method, Figure 5 is a state diagram after construction of the water pipe rehabilitation reversal method of the water pipe partial cut-off method according to an embodiment of the present invention, Figure 6 is a water supply according to a second embodiment of the present invention 8 is a state diagram of the construction of the water pipe regeneration work reversal method of the partial pipe cutting method, Figure 8 is a flow chart of the water pipe rehabilitation work method of the water pipe partial cutting method according to an embodiment of the present invention.

In the present invention, the term water pipe rehabilitation reversal method may be changed to a non-excavated pipeline repair method.

As shown in Figure 3 to 8, the water pipe rehabilitation reversal method of the water pipe partial cut-off method according to an embodiment of the present invention is to break the ground at a predetermined interval so that a portion of the water pipe (1) is exposed It relates to a repair method of a water pipe including the step (S1). In particular, the protection tube is inserted into the water supply pipe by the inversion method to a method of repairing and strengthening the water supply pipe. Detailed description of the known inversion method is omitted in the present specification and it is natural that the present invention cannot be made clear by the unknown of the inversion method. The construction for constructing the protective tube by the inversion method is described in detail in Patent Publication No. 2002-0084669, Patent No. 10-0615070, and the like.

The protective tube of the present invention is a concept including a fast-curing tube and a down tube, which are used in the art, and can be softened or partially melted by heating, adhered to the inner wall of a water supply pipe by pressure, and hardened by inner ear. It is a concept containing a plastic resin.

Water pipe rehabilitation reversal method of the water pipe partial cutting method according to an embodiment of the present invention is the step (S10) and the installation of the work pipe 20 (S20) and the water pipe (1) for the construction of the incision 10 It is configured to include a step (S30) to repair.

In the step (S10) of constructing the cutout 10, a portion of the water pipe 1 is cut without cutting. This part is crucially different from the prior art. As shown in Figs. 3 to 8, the present invention cuts only a part of the water pipe 1 without completely cutting it.

Preferably in the step (S10) of constructing the incision 10, as shown in Figures 1 to 7, the incision 10 cuts a portion of the upper portion of the tube located above the water pipe centerline (C1) It is preferable to form.

In the step (S20) of installing the working pipe 20, the hollow tubular work having a lower border 21 of a shape corresponding to the edge 11 of the incision 10 and the opening 22 formed in the upper portion The pipe 20 is welded to the incision 10. The working pipe 20 is welded to the cutout 10 so as to be inclined in an upstream direction (see FIG. 1) within a range of 20 ° to 80 ° relative to the water pipe 1.

When the work pipe 20 is inclined with respect to the water pipe 1 less than 20 °, the work pipe 20 and the water pipe 1 become parallel to each other so that a worker or a protective tube finishing machine enters the inside of the pipe. There is a problem in this inconvenience and when the work tube 20 is inclined relative to the water supply pipe 1 exceeds 80 °, wrinkles because the protective tube should be bent close to 90 degrees in the working situation as shown in FIG. There is a problem that occurs. In addition, when the angle of inclination of the working pipe 20 with respect to the water supply pipe 1 exceeds 80 °, there is a problem in that the automatic pipeline customs device is unable to descend or rise on the guide rail and thus cannot function as an entrance and exit function during customs work. have.

Next, the step (S30) for repairing the water supply pipe 1 enters the reinforcing tube 5 into the water supply pipe 1 through the opening 22 of the inclined working pipe 20 by using an inversion method. After advancing in the downstream direction to construct the reinforcing tube (5) and the step of processing the tip proceeds. The front end treatment of the reinforcing tube 5 is performed on one side and both sides. One side tip processing is mentioned later. The other end treatment is closed after cutting to less than the adjacent working pipe (20b).

Water pipe rehabilitation reversal method of the water pipe partial cutting method according to an embodiment of the present invention, the step of constructing the second working pipe (20b) (S120), the other end and the overlapping portion (D) of the reinforcing tube (5) It may be configured to further include a step (S130) for finishing to form a) and sealing the opening 22 with a cover plate (S140).

In step S120, the second work pipe 20b is welded to the cutout 10b of the other water pipe 1b located upstream of the water pipe 1, and the second work pipe 20b is welded to the other side. Construct so as to incline in an upstream direction (see FIG. 3) within a range of 20 ° to 80 ° relative to the water pipe 1b.

In step (S130), the reinforcing tube (5) to enter the other water supply pipe (1b) distribution through the second working pipe (20b) using an inverted method and then advance in the downstream direction to construct the reinforcing tube (5) One end of the reinforcement tube 5 passing through the working water pipe 20 through the other water supply pipe 1b forms the other end and the overlapping portion D of the reinforcement tube 5 constructed in the water supply pipe 1. Finished. In step S140, when the pipeline maintenance of the predetermined area is completed, the opening 22 of the upper end of the working pipe 20 is sealed with a cover plate. (In other words, as shown in Fig. 5, the overlapping portion (D) is naturally shaped so that one end of the reinforcing tube (5) installed in a later step in time overlaps the other end of the reinforcing tube (5) installed in a previous step in time. .)

6 is a state diagram of the construction of the water pipe rehabilitation reversal method of the water pipe partial cut-off method according to a second embodiment of the present invention. As shown in FIG. 6, the edge 11 of the incision has a short, inclined angle with respect to the centerline (angle B) when viewed from the front of the water pipe 1 (see FIG. 6) in a range of 50 to 80 °. It may be easy for the emergency inclination line 11a and the inclination angle (angle C) with respect to the center line to be cut in a shape in which the gentle inclination line 11b having a range of 10 to 40 ° is connected to each other.

If the angle B is in the range of 50 to 80 ° and the angle C is out of the range of 10 to 40 °, it is difficult to construct the work pipe 20 within the range of 20 to 80 ° compared to the water pipe 1. As shown, it is advantageous in terms of workability and sealing property that the flange surface 23 having a coupling hole is formed at the end of the working pipe 20 and the cover plate is fixedly coupled to the flange surface 23.

In the case of forming the working pipe in the water pipe using the water pipe partial reinforcement work reversal method of the water pipe according to the present invention, the working pipe 220 inclined in a different direction from the working pipe thus formed is viewed using Customs construction according to the invention can be carried out.

FIG. 7 is a view illustrating a construction state of the water pipe regeneration construction and the customs construction method of the water pipe partial cutting method according to the third embodiment of the present invention. FIG. 9 is a flow chart illustrating the customs construction method according to an embodiment of the present invention.

As shown in Figure 7 or 9, the water pipe rehabilitation reversal method and the customs method of the water pipe partial cut-off method according to an embodiment of the present invention, the step of constructing a custom cut section 210 (S210) And it may be configured to further include the step of installing the customs working pipe 220 (S220) and the step of installing the guide rail in the customs working pipe 220 (S230) and customs to the water pipe (S240). .

In the step S210 of constructing the customs incision 210, a part of the water pipe 1 is not cut off. In the step of installing the customs working pipe 220 (S220), the hollow having a lower border 221 of the shape corresponding to the edge 211 of the incision 210 for customs and the opening 222 is formed in the upper A tubular tubular tubular tube 220 is welded to the tubular cutout 210. At this time, the work pipe for customs 220 is inclined in the downstream direction (see Fig. 7) within the range of 20 ~ 80 ° compared to the water pipe (1), that is to install inclined in the opposite direction to the work pipe 20 It is different from the pipe 20 installation method.

If the angle of the customs working pipe 220 is out of the range of 20 to 80 °, the entry of the pipe washing device becomes difficult, the length of the guide rail is excessively long, or the inclination of the guide rail is too large. There is this.

In step S230, the guide rail is installed in the working pipe 20 and the customs working pipe 220. In step (S240) to enter the pipeline washing device to the working pipe 20 to clean the pipe and then to the customs working pipe 220 to escape the pipeline washing device to customs water pipe.

Customs technology using a pipe washing device is a well-known technology, and a detailed description thereof will be omitted, and a configuration related to a pipe cleaning method and a customs device known at the time of filing the present application is considered to be described in the specification of the present application. The pipeline washing apparatus of the present invention may be a sponge-type polyimide, which is a well-known object that is inserted into the tube and proceeds by hydraulic pressure of water supplied from the rear side, and customs the inner wall of the tube.

The angle at which the top surface of the working tube or the customs working tube forms the centerline of the working tube or the customs working tube is preferably 90 degrees as shown in FIG. 7, but the scope of the present invention is not limited thereto.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, the scope of the present invention is not limited to these embodiments, and the scope of the present invention is defined by the following claims, and equivalent scope of the present invention. It will include various modifications and variations belonging to.

The reference numerals set forth in the claims below are merely to aid the understanding of the present invention, not to affect the interpretation of the scope of the claims, and the scope of the claims should not be construed narrowly.

1 is a construction state diagram for repairing a water supply conduit by the inversion method of the prior art (Fig. 6 of the prior art 1).

Figure 2 is a construction state diagram for repairing the water supply pipe by the inversion method of the prior art (Fig. 6 of the prior art 1).

Figure 3 is a front configuration diagram of the construction state of the water pipe rehabilitation reversal method of the water pipe partial cut-off method according to an embodiment of the present invention.

Figure 4 is a state diagram of the construction of the water pipe rehabilitation reversal method of the partial water pipe cutting method according to an embodiment of the present invention.

Figure 5 is a state diagram after the construction of the water pipe rehabilitation reversal method of the water pipe partial cutting method according to an embodiment of the present invention.

6 is a state diagram of the construction of the water pipe regeneration work reversal method of the partial water pipe cutting method according to the second embodiment of the present invention.

7 is a state of construction of the water pipe regeneration work reversal method and the customs method of the water pipe partial cut-off method according to the third embodiment of the present invention.

8 is a flow chart of a water pipe regeneration construction reversal method of the partial water pipe cutting method according to an embodiment of the present invention.

9 is a flow chart customs method according to an embodiment of the present invention.

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

1, 1b: water supply pipe 5: reinforcement tube

10, 10b: incision 11: the border

1a: incision edge steep slope

11b: sloping edge gentle incline

20, 20b: workman 21: lower border

22: opening 23: flange face

D: Overlap C1: Center of water pipe

Angle A: The angle made by the working pipe compared to the water pipe

Angle B: Angle of inclination of centerline of incision sharp steep line

Angle C: angle of inclination of centerline of inclined edge

Claims (7)

delete In the repair method of the water supply pipe, including the step (S1) of breaking the ground at a predetermined interval so that a portion of the water supply pipe (1), Constructing the cutout 10 by cutting a portion thereof without cutting the water pipe 1 (S10); The hollow tubular work tube 20 having a lower edge 21 having a shape corresponding to the edge 11 of the cutout 10 and having an opening 22 formed thereon is welded to the cutout 10. Combined, but the step of installing a working pipe 20 in the incision 10 to be inclined in an upstream direction (see Fig. 1) within the range 20 ~ 80 ° compared to the water pipe (1) (S20); The reinforcing tube 5 is introduced into the water supply pipe 1 through the opening 22 of the inclined working tube 20 by using an inversion method, and then advanced in the downstream direction to construct the reinforcing tube 5 and the tip thereof. Repairing and repairing the water pipe (1) (S30); The second work pipe 20b is welded to the cutout 10b of the other water pipe 1b located upstream of the water pipe 1, and the second work pipe 20b is connected to the other water pipe 1b. Constructing to incline in an upstream direction (see FIG. 3) within a range of 20 to 80 ° (S120); After the reinforcing tube 5 enters the other water supply pipe 1b through the second working pipe 20b by using the inversion method, advances in the downstream direction to construct the reinforcing tube 5, One end of the reinforcing tube (5) passing through the other side water pipe (1b) passing the working pipe 20 is finished to form the other end and the overlap (D) of the other end of the reinforcing tube (5) constructed in the water supply pipe (1) Processing (S130); When the maintenance of the pipeline in a certain area is completed, the step of sealing the opening 22 of the upper end of the working pipe (20) with a cover plate (S140); Inversion method. The method of claim 2, The cutting portion 10 of the step (S10) is a water pipe reinforcement reinforcement method of the water pipe partial cut-off method, characterized in that formed by cutting a part of the upper portion of the pipe located on the water pipe center line (C1). The method of claim 3, The edge 11 of the cutout is a short inclined line 11a having a straight line shape and an inclination angle (angle B) in a range of 50 to 80 ° when viewed from the front of the water supply pipe 1 (see FIG. 6). And, inclined angle (angle B) with respect to the center line is inclined in the shape that the gentle inclined line (11b) in the range of 10 to 40 ° are connected to each other, the water pipe partial incision method of reinforcement construction of water pipes. The method of claim 4, wherein A flange surface 23 having a coupling hole is formed at an end of the working pipe 20, and the cover plate is fixedly coupled to the flange surface 23. . In the repair method of the water supply pipe, including the step (S1) of breaking the ground at a predetermined interval so that a portion of the water supply pipe (1), Constructing the cutout 10 by cutting a portion thereof without cutting the water pipe 1 (S10); The hollow tubular work tube 20 having a lower edge 21 having a shape corresponding to the edge 11 of the cutout 10 and having an opening 22 formed thereon is welded to the cutout 10. Combined, but the step of installing a working pipe 20 in the incision 10 to be inclined in an upstream direction (see Fig. 1) within the range 20 ~ 80 ° compared to the water pipe (1) (S20); The reinforcing tube 5 is introduced into the water supply pipe 1 through the opening 22 of the inclined working tube 20 by using an inversion method, and then advanced in the downstream direction to construct the reinforcing tube 5 and the tip thereof. Repairing and repairing the water pipe (1) (S30); The second work pipe 20b is welded to the cutout 10b of the other water pipe 1b located upstream of the water pipe 1, and the second work pipe 20b is connected to the other water pipe 1b. Constructing to incline in an upstream direction (see FIG. 3) within a range of 20 to 80 ° (S120); After the reinforcing tube 5 enters the other water supply pipe 1b through the second working pipe 20b by using the inversion method, advances in the downstream direction to construct the reinforcing tube 5, One end of the reinforcing tube (5) passing through the other side water pipe (1b) passing the working pipe 20 is finished to form the other end and the overlap (D) of the other end of the reinforcing tube (5) constructed in the water supply pipe (1) Processing (S130); Sealing the opening 22 of the upper end of the working pipe 20 with the cover plate when the maintenance of the predetermined area is completed (S140); Constructing a customs cut section 210 by cutting a portion thereof without cutting the water pipe 1 (S210); The hollow tubular tubular customs work tube 220 having a lower border 221 having a shape corresponding to the edge 211 of the tubular incision 210 and having an opening 222 formed thereon, for the tubular incision. Welded to the portion 210, Installing the customs work pipe 220 so as to be inclined in a downstream direction (see FIG. 7) within a range of 20 ° to 80 ° compared to the water pipe 1, that is, to be inclined in a direction opposite to the work pipe 20 (S220). Water pipe rehabilitation reversal method and customs method of water pipe partial cut-off method comprising a. The method of claim 6, Installing a guide rail in the working pipe (20) and the customs working pipe (220) (S230); After entering the pipeline washing device into the working pipe (20) to clean the pipes and the customs working pipe (220) to escape the pipeline washing device to the customs to the water pipe (S240); Water pipe rehabilitation reversal method and customs method of water pipe partial cutting method.

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