KR101148982B1 - Liner for repairing pipe and repairing method of pipe by using liner for repairing pipe - Google Patents

Abstract

PURPOSE: A repairing agent of a sewer pipeline for unifying waterproofing and reinforcing functions and repairing method using the same are provided to reduce a session and construction costs through secluding a leakage of a sewer pipeline by a rubber asphalt layer and glass fiber layer and improving the durability at the same time. CONSTITUTION: A repairing agent(50) of a sewer pipeline for unifying waterproofing and reinforcing functions comprises a primer layer(10), a rubber asphalt layer(20), a polypropylene fabric layer(30), and a glass fiber layer(40). The primer layer is attached on the inner side of a sewer pipe. The rubber asphalt layer for waterproofing is formed in the lower part of the primer layer. The polypropylene fabric layer is formed in the lower part of the rubber asphalt layer and an adhesive force between the polypropylene fabric layer and rubber asphalt layer is improved. The glass fiber layer is formed in the lower part of the polypropylene fabric layer and improves the durability of the sewer pipe.

Description

Liner for repairing pipe and repairing method of pipe by using liner for repairing pipe}

The present invention relates to a sewer pipe repair agent incorporating an index and reinforcement that can leak and reinforce a partially broken portion of a sewer pipe at a time, and a repair method using the same. More specifically, it is possible to prevent leakage of a sewer pipe and improve durability. Simultaneously through the asphalt layer and glass fiber layer, it can reduce the work time and reduce the construction cost, and form polypropylene thin fine wire between the rubberized asphalt layer and the glass fiber layer so that the warp and weft cross each other up and down. By including a woven fabric layer, and improves the adhesion of the rubberized asphalt layer and the glass fiber layer made of heterogeneous to maintain the sewage pipe reintegrator and the repair method using the same index and reinforcement that can be easily maintained.

It is known that the service life of pipelines such as sewage pipes in Korea is far short of the design life due to the lack of design and manufacturing technology, poor maintenance and poor construction practices that ignore construction specifications. Therefore, the pipelines buried in the ground are aging and damaged before the design life, and the sewage leaks into the surrounding soil and more groundwater is introduced. Until now, when such a problem occurs, the excavated pipeline is repaired by artificially excavating the road where the bad pipeline is buried, then dismantled and removed the bad pipeline, buried a new pipeline of the same type, and resurfacing the excavated road. have.

However, this method has to destroy the whole road, can damage other underground works when excavating the road, and there is a problem that the loss of overhead overhead due to the control of the road increases. In addition, there is a problem that generates harmful environmental factors such as noise, vibration and dust, direct costs due to repaving the road, there may be a problem that a safety accident may occur.

In order to solve such a problem, a method for reinforcing a sewer pipe in a non-excavation method has recently been proposed.

Conventional non-excavation pipeline repair method is a method that can identify the sewage pipe that has been damaged to install the repair agent in the partial repairer including the air tube and then blow the compressed air by blowing compressed air to the inner wall of the sewer pipe by the compressive force.

On the other hand, Figure 1 illustrates a conventional non-excavating pipe repairs used in repair, 200, a flexible tube consisting of a coating surface (211a) and a woven or non-woven fabric (211b) attached to the surface in contact with the sewer pipe 201 ( 211 and the flexible tube 211 formed in the flexible tube 211 is divided into a contact tube 212 made of a glass fiber woven fabric (212b) and a polyethylene coating layer (212a) in contact with the woven or nonwoven fabric 211b of the flexible tube (211) Consists of.

The repair method of the sewer pipe 201 through the repair agent 200, first, after inserting the flexible tube 211, the close contact tube 212 through the inverter (not shown in the drawing) inside the flexible tube 211 By arranging, the flexible tube 211 and the close tube 212 may be cured and pressurized using water vapor or air pressure to be repaired.

However, the repairing agent 200 as described above has a problem in that the work of installing the flexible tube 211 and the mounting tube 212 is performed separately and takes a lot of work process and time.

In addition, since the above-mentioned repair agent 200 is a structure that can be used for the overall repair of the sewage pipe 201, there is a problem that is not suitable for partial repair of the sewage pipe 201.

In particular, in the process of pressing and hardening the flexible tube 211 and the close contact tube 212, peeling phenomenon occurs frequently between the flexible tube 211 and the sealing tube 212 to maintain the maintenance. It has been pointed out that the problem of having to do it again is caused.

In order to solve the above problems, the sewage pipe repair agent integrated with the index and reinforcement of the present invention includes a primer layer attached to the inner surface of the sewage pipe; A rubberized asphalt layer formed below the primer layer for indexing; A polypropylene woven layer formed under the rubberized asphalt layer and formed to have excellent adhesion with the rubberized asphalt layer; It is formed on the lower side of the polypropylene woven layer, characterized in that consisting of a glass fiber layer for improving the durability of the sewer pipe.

The rubberized asphalt layer of the sewage pipeline repair agent incorporating the index and reinforcement of the present invention is 20 to 50% by weight of asphalt, 10 to 30% by weight of polyisobutylene synthetic rubber, 20 to 40% by weight of styrene isoprene styrene synthetic rubber and polybutene 1 It is characterized by a self-supporting type containing ~ 30% by weight.

The polypropylene woven fabric layer of the sewage pipe repair and maintenance agent incorporating the index and the reinforcement of the present invention is characterized by being formed by weaving the warp and the weft to cross each other up and down after the polypropylene is formed of thin fine wires.

The glass fiber layer of the sewage pipe repair system incorporating the index and reinforcement of the present invention is characterized in that the resin is impregnated.

The repair method using the sewage pipe repair agent incorporating the index and reinforcement of the present invention comprises: a sewer pipe inspection step of identifying an internal damage portion and an obstacle of the sewage pipe; A sewer pipe washing step for removing sludge, foreign substances and obstacles in the sewer pipe; The rubberized asphalt layer for the index and the lower side of the rubberized asphalt layer while improving the durability of the sewage pipe, while forming the polypropylene thin fine wire for excellent adhesion with the rubberized asphalt layer, and weaving the warp and weft cross each other up and down In order to improve the durability of the formed woven fabric layer and sewage pipes laminated glass fiber layer impregnated with a resin, and a repair agent manufacturing step of manufacturing a repair agent by pressing in a state in which a primer is applied to the rubberized asphalt layer; Repairing the sewer pipe in a non-excavation manner, and installing the repairing agent on the outside of the air tube of the partial repairing machine configured to draw air into the inner air tube; A partial repairer transfer step of transferring a partial repairer equipped with a repair agent to a damaged part of the sewer pipe; And a partial repair step of attaching the repair agent coupled to the air tube to the damaged part of the sewage pipe by injecting compressed air into the partial repair machine.

Rubberized asphalt layer in the manufacturing process of the water refining agent of the repair method using the sewage refining agent incorporating the index and reinforcement of the present invention is 20 to 50% by weight asphalt, 10 to 30% by weight polyisobutylene synthetic rubber, styrene isoprene styrene synthetic rubber It is characterized in that the self-supporting type containing 20 to 40% by weight and polybutene 1 to 30% by weight.

In the repairing step of the repair method of the repair method using the water refining agent integrating the index and reinforcement of the present invention, the repairing agent is disposed so that the glass fiber layer abuts on the outer circumferential surface of the air tube of the partial repairing machine, and then wound and installed, but the repairing agent is not removed from the partial repairing machine. It is characterized in that it is temporarily fixed by combining with a pressing force not to be.

The method of arranging the partial repairer in the damaged part of the sewer pipe in the repairing process transfer step of the repair method using the sewer pipe repair agent incorporating the index and reinforcement of the present invention is to install the partial repair device by visually installing the CCTV in the partial repairer, or It is characterized in that to move as much as the data measured by the partial repairer based on the data measured the distance from the position where the water retainer is initially placed to the damage site of the sewer pipe.

The present invention can simultaneously perform the leakage blocking and durability improvement of the sewage pipe through the rubberized asphalt layer and the glass fiber layer can reduce the work time and construction cost.

In addition, by forming a thin fine line of polypropylene between the rubberized asphalt layer and the glass fiber layer, comprising a polypropylene woven layer woven in the slope and the weft cross each other up and down, the adhesion of the rubberized asphalt layer and glass fiber layer made of heterogeneous It is a useful invention that can be made easy to maintain by improving.

1 is a perspective view showing a conventional repair agent.
Figure 2 is a perspective view showing a sewage pipe repair agent integrated with the index and the reinforcement according to the present invention.
Figure 3 is a state diagram showing a state of repairing sewage pipes using the sewage pipe repair agent integrated with the index and reinforcement according to the present invention.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

First, as shown in FIG. 2, the present invention includes a primer layer 10, a rubberized asphalt layer 20, a polypropylene woven layer 30, and a glass fiber layer 40.

The primer layer 10 is to be attached to the inner wall of the sewer pipe (P) to form a primer layer 10 by applying a conventionally used primer to the rubberized asphalt layer (20).

Next, the rubberized asphalt layer 20 is obtained by mixing and dissolving rubber in asphalt, and the rubber is formed by adding powder, liquid, and three pieces.

In particular, when the rubber is added to the asphalt in advance, and when mixing at the same time when the aggregate is added, in the present invention is used as the rubber is added to the asphalt in advance.

The rubberized asphalt layer 20 includes 20 to 50% by weight of asphalt, 10 to 30% by weight of polyisobutylene synthetic rubber, 20 to 40% by weight of styrene isoprene styrene synthetic rubber, and 1 to 30% by weight of polybutene. It is made in a self-supporting form.

It is preferable that the asphalt has a softening point of 30 to 100 ° C. and a penetration of 30 to 175 dmm in terms of good compatibility with ascon and increasing adhesion. The amount of the asphalt used is preferably 20 to 50% by weight, the adhesion may be lowered if less than 20% by weight, and if it exceeds 50% by weight may cause a problem of low temperature brittleness increases.

In addition, the rubberized asphalt waterproofing layer 20 of the present invention includes polyisobutylene synthetic rubber in order to increase durability, heat resistance, cold resistance and self-adhesive force. The polyisobutylene synthetic rubber forms a network with asphalt to improve interfacial adhesion, thereby increasing the elasticity, self-resilience, durability and adhesion cohesion of the adhesive. In particular, it may serve to support the structure by forming a network in the asphalt waterproof layer.

The amount of polyisobutylene synthetic rubber included in the present invention is preferably 10 to 30% by weight.

In addition, the rubberized asphalt layer 20 in the present invention contains 1 to 30% by weight of polybutene as a plasticizer to improve self-adhesion with the sewer pipe 1, and excellent flexibility and adhesiveness regardless of the climatic environment. To maintain. By adding the polybutene, room temperature adhesion is maintained even in summer, and has the property of maintaining flexibility even at low temperatures in winter.

In addition, the rubberized asphalt waterproofing layer of the present invention contains 20 to 40% by weight of styrene isoprene styrene synthetic rubber.

As such, the rubberized asphalt waterproofing layer according to the present invention is a rubber adhesive obtained by melting a mixture of refined asphalt, polymer synthetic rubber, thermoplastic synthetic rubber, and plasticizer, and includes 2-methyl-1-propene polymer. It is impermeable, chemically stable, resistant to acids and alkalis, and maintains stable adhesion to heat and weather resistance, making it suitable for the sewer pipe (1).

Next, the polypropylene woven layer 30 is formed below the rubberized asphalt layer 20.

The polypropylene woven layer 30 is formed by weaving polypropylene into thin fine wires and weaving them so that the warp yarns and the weft yarns cross each other up and down.

Since the polypropylene woven layer 30 is made of synthetic resin material, it is possible to improve durability, and in particular, since the woven fabric is formed into a woven fabric, the asphalt of the rubberized asphalt layer 20 is woven polypropylene. As the woven layer 30 penetrates, the bonding force is excellent, and the peeling phenomenon with the rubberized asphalt layer 20 does not occur.

Next, the glass fiber layer 40 is impregnated with a resin, and the bonding force with the polypropylene woven fabric layer 30 is excellent.

In particular, the glass fiber layer 40 is configured to include a mesh is not only excellent bonding force with the polypropylene woven layer 30, but also acts to increase the durability after attaching to the sewer pipe (P). .

Looking at the repair method using the sewage pipeline repair agent integrated with the index and reinforcement consisting of the above configuration as follows.

First, as shown in Figure 3 to identify the internal damage portion and obstacles of the sewer pipe (P) to be repaired. (Sewer pipe inspection step)

Then, based on the data obtained through the sewer pipe inspection step to remove the sludge or foreign matter attached to the inner wall of the sewer pipe (P) and to remove the obstacles existing in the sewer pipe (P). (Sewage pipe washing step)

At the same time as the washing step of the sewage pipe is finished as described above to produce a repair agent (50).

The repair agent 50 is made of fine thin lines of polypropylene so that peeling with the rubberized asphalt layer 20 for the index, the rubberized asphalt layer 30 does not occur, the slope and weft cross each other up and down A woven polypropylene woven layer 30, including a mesh and laminated with a glass fiber layer 40 impregnated with a resin, and applying a primer to the upper surface of the rubberized asphalt layer 30 to form a primer layer 10 Then, it is produced by pressing using a pressing means (not shown in the drawing).

Here, in the manufacturing process of the repair agent 50, the primer layer 10 is disposed on the upper side of the rubberized asphalt layer 20, but in addition to the upper side of the rubberized asphalt layer 20 in the pressing process, the polypropylene woven layer ( 30), the glass fiber layer 40 is also introduced to act to further improve the bonding force.

On the other hand, the repair agent 50 produced as described above is mounted to the partial repair machine (1) (repair agent mounting step).

The partial repair device 1 constitutes an air tube 1a which does not excavate the sewage pipe P, that is, the air is drawn inward to repair the sewage pipe P partially broken in a non-excavation manner. On the lower side, the driving wheel 1b is formed to be movable.

In addition, the front of the traction rope (1d) is configured so that the person can pull and move the partial maintenance machine (1).

In the repairing agent mounting step, the repairing agent 50 is rolled up and wrapped around the outer diameter of the air tube 1a of the partial repairing machine 1.

In particular, the glass fiber layer 40 of the repair agent 50 is disposed and abuts on the outer circumferential surface of the air tube 1a. At this time, the primer layer 10 and the glass fiber layer 40 of the repair agent 50 are Since it is arranged in contact with each other, do not sense by excessive force, but only by applying a force to the extent that the repair agent 50 does not fall to the air tube (1a) of the partial repair machine 1 is temporarily fixed and coupled.

When the coupling of the repair agent 50 is completed to the partial repairer 1 as described above, the partial repairer 1 is moved to the damaged part of the sewer pipe (P).

Typically, the partial repair of the sewer pipe (P) through the partial repairer (1) is to arrange the partial repairer (1) in the position where the manhole is formed to be able to move to the sewer pipe (P) requiring partial repair.

In the present invention, while further forming the CCTV (1c) in front of the partial maintenance machine 1 to move the partial maintenance machine 1 to the towing rope (1d) while checking the image taken by the operator on the CCTV (1c) from the outside, The sewer pipe (P) can be accurately moved to the position that needs to be repaired.

Alternatively, after measuring the distance from the position of the manhole where the partial repairer 1 is initially placed to the broken part of the sewage pipe P, it is moved when the partial repairer 1 is moved by pulling with the towing rope 1d. The distance can also be measured and placed in the correct position.

On the other hand, when the movement of the partial repair machine 1 is completed as described above, normal compressed air is injected into the partial repair machine 1 to expand the air tube 1a, and the repair agent 50 mounted on the outer circumferential surface of the air tube 1a is installed. The work is completed by attaching to the damaged part of the sewer pipe (P).

The air tube 1a of the partial repairer 1 maintains a state in which air is injected for about 1 to 3 hours depending on the diameter of the sewer pipe P and the length of the damaged part. It's a good idea to make sure that it's perfectly compressed and attached.

Although the above-described embodiments have been described with respect to the most preferred embodiment of the present invention, the present invention is not limited thereto and may be modified and implemented in various forms without departing from the technical spirit of the present invention. It is obvious to the ordinary technicians belonging to.

1: partial conservative
1a: Air tube 1b: Driving wheel 1c: CCTV 1d: Towing rope
10: primer layer
20: rubberized asphalt layer
30: polypropylene woven fabric layer
40: glass fiber layer
50: Sewage pipe repair system integrating water supply and reinforcement

Claims (8)

A primer layer 10 attached to the inner side of the sewer pipe P;
Rubberized asphalt layer 20 is formed for the index on the lower side of the primer layer 10;
Is formed on the lower side of the rubberized asphalt layer 20, the polypropylene woven layer formed by forming a fine thin line of polypropylene so as to have excellent adhesion with the rubberized asphalt layer 20 and weaving so that the warp and weft cross each other up and down 30;
Is formed on the lower side of the polypropylene woven fabric layer 30, the glass fiber layer 40 for improving the durability of the sewer pipe (P); sewage pipe repair agent integrated with an index and reinforcement characterized in that consisting of.
The rubberized asphalt layer 20 is 20 to 50% by weight of asphalt, 10 to 30% by weight of polyisobutylene synthetic rubber, 20 to 40% by weight of styrene isoprene styrene synthetic rubber and polybutene 1 to 30. The sewage pipe repair system which integrated the index and reinforcement which are characterized by being a self-supporting type containing weight%.
delete The sewage pipe repair agent of claim 1, wherein the glass fiber layer (40) incorporates an index and reinforcement, which is characterized in that the resin is impregnated.
A sewer pipe inspection step of identifying internal damages and obstacles of the sewer pipe;
Sewage pipe washing step to remove sludge, foreign matter and obstacles in the sewage pipe;
The rubberized asphalt layer for the index and the lower side of the rubberized asphalt layer while improving the durability of the sewage pipe, while forming the polypropylene thin fine wire for excellent adhesion with the rubberized asphalt layer, and weaving the warp and weft cross each other up and down In order to improve the durability of the formed woven fabric layer and sewage pipes laminated glass fiber layer impregnated with a resin, and a repair agent manufacturing step of manufacturing a repair agent by pressing in a state in which a primer is applied to the rubberized asphalt layer;
Repairing the sewage pipe in a non-excavation manner, and installing the repairing agent on the outside of the air tube of the partial repairing machine configured to draw air into the inner air tube;
A partial repairer transfer step of transferring a partial repairer equipped with a repair agent to a damaged part of the sewer pipe;
Partial repair step of attaching the repair agent coupled to the air tube on the damaged part of the sewer pipe by injecting compressed air to the partial repairer; Repair method using a sewer pipe repair agent integrating the index and reinforcement, characterized in that consisting of.
According to claim 5, wherein the rubberized asphalt layer in the repair step is 20 to 50% by weight asphalt, 10 to 30% by weight of polyisobutylene synthetic rubber, 20 to 40% by weight of styrene isoprene styrene synthetic rubber and polybutene 1 Repairing method using sewage pipe repair system that integrates index and reinforcement which is characterized by being self-contained type containing 30% by weight.
The method of claim 5, wherein in the step of installing the repair agent, the repair agent is disposed on the outer circumferential surface of the air tube of the partial repair machine, and then wound and mounted, and the wound repairer is temporarily installed by combining the repair agent with an applied pressure such that the repair agent does not fall off from the partial repair machine. Repair method using the repair of sewage pipes that integrates the index and reinforcement that are characteristic of fixing.
The method of claim 5, wherein the method of arranging the partial repair device on the damaged part of the sewer pipe in the transfer of the partial repair device includes installing a CCTV in the partial repair device and visually confirming the location of the partial repair device, or at the position where the partial repair device is initially disposed. Repair method using sewage pipe repair agent that integrates the index and reinforcement, which is characterized by moving as much as the measured data of the partial repair machine based on the measured data of the distance to the damaged part.

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