KR100718246B1 - Unexcavated strained pipe insertion method and apparatus with deformation prevention means by temperature change - Google Patents

Abstract

The present invention can be applied to the product produced in the factory by the non-excavation method of inserting the deformation pipe as it is, ensuring quality stability and quality control is easy, and does not require the process of curing the resin in the field compared to other methods It is economical because the construction period can be shortened, and it is economical, and it is suitable for eco-friendliness that does not cause harmful water discharge due to the reduction of buried pipe diameter and does not emit harmful substances. To provide a non-excavated strain pipe insertion method and apparatus having a strain preventing means by a temperature change that can reduce or improve the shrinkage or expansion of the liner that may be caused by a temperature change using a strain preventing means. There is a purpose.

In order to achieve the above object, the present invention is inserted into a liner of a folded and flexible material, which is used as a deformation pipe by using a means of introduction to the existing buried pipe for repair or reinforcement; At least one elastic member is attached to both ends of the buried pipe inner wall and the liner; A packer member is mounted at both ends of the buried pipe in order to seal the buried pipe into which the liner of the folded shape is inserted, the packer member of one side is provided with an injection pipe, and an opposite piper member is provided with a discharge pipe; The fluid supplied from the fluid supply part is injected into the buried pipe through the injection pipe of the packer member and discharged through the discharge pipe, and the liner in a folded form is unfolded by the fluid injected through the fluid supply and the expansion and close contact with the inner wall of the buried pipe is carried out. Become; The packer member is removed after the expansion-contacted liner is cooled; In order to prevent the deformation of the liner is in close contact with the inner wall of the buried pipe to provide a strain pipe insertion method and apparatus for preventing the deformation caused by the temperature change is installed on the inner wall of the liner.

Sewer pipe, deformation pipe, deformation prevention means, liner, water-expandable rubber material, ring member, fluid

Description

Close-fit pipes lining system of trenchless technology having means for preventing deformation by changes of temperature and apparatus thus}

1 is a block diagram showing a state in which the deformation preventing means is provided in accordance with the present invention and the strain pipe is inserted.

Figure 2 is a side view and an enlarged cross-sectional view of a state in which the deformation preventing means according to the invention is provided and the strain pipe is inserted.

Figure 3 is a schematic diagram showing the process of inserting the deformed tube according to the present invention.

Figure 4 is a perspective view showing a state in which the deformation pipe is inserted into the buried pipe in the folded form according to the present invention.

Figure 5 is a perspective view showing a process of installing the deformation preventing means according to the invention on the inner wall of the liner.

Figure 6 is a graph showing the experimental data of the shrinkage change of the liner material with temperature according to the present invention.

Figure 7 is a graph predicting wear resistance (weight change) after 50 years of the liner material according to the present invention.

8 is a graph showing the amount of shrinkage / expansion change when the water-expandable rubber material and the ring member are provided and the case is not provided in the strain pipe insertion method and apparatus provided with the deformation preventing means according to the present invention.

* Explanation of symbols for main parts of drawings *

100: buried pipe 110: manhole

200: drawing-in means 210: winch

220: wire 300: strainer (liner)

400: elastic member 500: packer member

510: injection pipe 520: discharge pipe

600: fluid supply unit 610: water supply tank

620: pump 700: deformation preventing means

710: ring member 720: fixing means

730: wedge

The present invention relates to a non-excavated strain pipe insertion method and apparatus having a deformation preventing means by temperature change, and more specifically, to prevent soil and groundwater contamination due to the outflow of sewage from sewage pipes, to prevent sewage pipe penetration and inflow of water. The present invention relates to a non-excavated strain pipe insertion method and apparatus which is equipped with an effective means for improving the operation of sewage treatment plants, securing site adaptability and quality stability when repairing and reinforcing underground buried pipes, and preventing deformation due to temperature changes suitable for economical and eco-friendliness. .

In general, sewage pipes are deteriorated due to aging and lack of maintenance due to long-term use, cracks, breakage, corrosion, etc., resulting in inefficient operation of the sewage treatment plant. The wastewater flows into the ground, polluting the soil and groundwater, causing ground subsidence, and rainwater flowing into the damaged parts of sewage pipes increases the cost of sewage treatment.

On the other hand, most of the underground buried pipes (for example, sewer pipes, water pipes, etc.) constructed in Korea due to the lack of design / manufacturing and maintenance without considering the long-term use and depth of buried, dynamic load of the load, Buried pipes are aging before design life. As described above, the buried pipes contain many problems such as environmental pollution due to leakage of waste water and loss of social indirect capital due to increased sewage treatment costs.

Accordingly, excavation and non-excavation methods are largely used for repairing and reinforcing underground buried pipes, and in Korea, replacement of buried pipes by excavation is almost carried out. However, in the excavation method, when a problem occurs, the entire buried pipe is buried extensively over a long period of time, and heavy machinery and manpower are used to excavate the road to replace the old pipe. In recent years, the excavation method has been used because it requires a lot of cost and time such as damage, loss of social indirect capital due to long road control, generation of harmful environmental factors such as noise, vibration, dust, and road resurfacing costs. Complementing the unreasonable point, short construction period and low cost non-excavation method are being developed.

The non-excavation method means that the buried pipes buried underground, cracks, short circuits, leaks, wall loss, inclusions, loosening of joints, breakage of joints, breakage of connectors, breakage of manholes, and breakage due to stress loads loaded for long periods of time. In case of failure to maintain structural strength due to defects, etc., and failure to properly perform the role of sewage due to increased penetration / inflow through damaged parts, short time without excavation of the road instead of the conventional excavation and replacement method It is a construction method that repairs various defective factors in the inside and prolongs the strength, roughness coefficient and durability of the fuse. Such non-excavation methods are currently being developed such as slip lining, spirally wound pipes lining, and cured-in-place-pipes lining (CIPP).

However, the non-excavation method has a problem that it takes a lot of time in the field compared to the time required in the factory at the time of repair / reinforcement of the buried pipe, which impairs the adaptability in the field.

In addition, since the non-excavation method requires direct hardening in the field, quality control is difficult. In other words, even if strict quality control in the factory, the curing state may vary depending on the site conditions, there is also a problem in ensuring quality stability. In addition, the non-excavation method uses a chemical as a curing agent and a diluent at the time of in-situ curing, so there is a problem that it is unsuitable for environment because it can be released harmful substances to the human body.

In addition, since most of domestic sewage pipes have many defects such as joints, they should be improved after repair and reinforcement. The non-excavation method is difficult to reshape when hardening is completed in the field, so there is no countermeasure against this. There is also a problem that the flow rate is lowered due to the flow of the flow.

In addition, the non-excavation method also includes a problem that a very high cost is generated, and thus a new non-excavation method that improves these problems is required.

Therefore, the present invention has been proposed to solve the above problems, the non-excavation method of inserting the deformation tube does not need to cure the resin in the field is excellent in the field adaptability, applying the product produced in the factory as it is It is easy to secure quality stability and quality control, and it does not require hardening in the field compared to other construction methods, so it is possible to realize shortening of construction period and so on. It is economical and water-permeability due to reduction of buried diameter due to excellent roughness coefficient It is an object of the present invention to provide a non-excavation strain pipe insertion method and apparatus having a deformation preventing means caused by temperature changes suitable for environment-friendliness that does not cause a deterioration of and does not discharge harmful substances.

In addition, the present invention is provided with deformation prevention means by the temperature change that can reduce or improve the shrinkage or expansion problem of the liner that may be caused by the temperature change at the time of repair and reinforcement of underground buried pipe using the deformation prevention means. Another object is to provide a non-excavation strain tube insertion method and apparatus.

In order to achieve the above object, the present invention is inserted into a liner of a folded and flexible material, which is used as a deformation pipe by using a means of introduction to the existing buried pipe for repair or reinforcement; At least one elastic member is attached to both ends between the inner wall of the buried pipe and the liner to improve the adhesion between the buried pipe and the liner; A packer member is mounted at both ends of the buried pipe in order to seal the buried pipe into which the liner of the folded shape is inserted, the packer member of one side is provided with an injection pipe, and an opposite piper member is provided with a discharge pipe; The fluid supplied from the fluid supply part is injected into the buried pipe through the injection pipe of the packer member and discharged through the discharge pipe, and the liner in a folded form is unfolded by the fluid injected through the fluid supply and the expansion and close contact with the inner wall of the buried pipe is carried out. Become; The packer member is removed after the expansion-contacted liner is cooled; In order to prevent the deformation of the liner inflated and adhered to the inner wall of the buried pipe provides a strain pipe insertion method for preventing the deformation caused by the temperature change is installed on the inner wall of the liner.

The material of the liner according to the present invention may be made of any one selected from the group consisting of polyethylene, polyethylene composite, polyvinyl chloride and polyvinyl chloride composite.

In addition, the inlet means is a winch is located in the other manhole to insert the liner of the folded form located in the manhole on one side into the buried pipe; A wire connected at one end to the winch and at the other end to a liner; And a mobile device that can move along the inside of the buried pipe to connect the wire connected to the winch to the liner.

The elastic member according to the present invention may be made of a water-expandable rubber material to improve the adhesion between the buried pipe and the liner, the fluid may be made of a high temperature high pressure or high temperature low pressure steam.

The installation of the deformation preventing means according to the present invention is to fix the one or more ring member is cut in close contact with both ends of the liner inner wall in close contact with the buried pipe by using a fixing means; Applying a heat source to the liner where the ring member is tightly fixed; To prevent deformation of the liner, the wedge is inserted into the cut portion of the ring member by press fit and then welded.

Here, the ring member tightly fixed to the inner wall of the liner may be disposed to overlap at least a portion of the elastic member attached to the inner wall of the buried pipe to prevent deformation through the strong compression of the liner to the buried pipe.

In addition, by applying a heat source to the ring member tightly fixed to the inner wall of the liner, the ring member is recessed between the liners so that the reduction of the roughness coefficient and the liner diameter does not occur, thereby preventing the reduction of the flow rate.

On the other hand, the ring member is made of a steel material with corrosion resistance, wear resistance and rigidity to prevent deformation of the liner, the existing buried pipe may be made of sewage pipe or water pipe.

In addition, the present invention is a liner of a folded and flexible material, which is inserted into the existing buried pipe using the introduction means for repair or reinforcement and used as a deformation pipe; One or more elastic members attached to both ends between the inner wall of the buried pipe and the liner to improve adhesion between the inner wall of the buried pipe and the liner; A packer member mounted at both ends of the buried pipe in order to seal the buried pipe into which the liner of the folded shape is inserted, one side of which is provided with an injection pipe, and an opposite side of the packer member; A fluid supply unit for supplying a fluid to be injected into the buried pipe and discharged through the discharge pipe so that the folded liner is expanded and tightly adhered to the inner wall of the buried pipe; And it provides a strain pipe inserting device for preventing deformation due to temperature change including a deformation preventing means installed on the inner wall of the liner to prevent deformation of the liner in close contact with the inner wall of the buried pipe.

The deformation preventing means according to the present invention comprises at least one ring member is cut in close contact with both ends of the liner inner wall in close contact with the buried pipe; Fastening means for fastening and adjusting the ring member to the inner wall of the liner; And a wedge which is welded after being inserted into the cut portion of the ring member by press fit to prevent deformation of the liner.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram showing a state in which the deformation preventing means according to the present invention is inserted and the deformation tube is inserted, Figure 2 is a side view and an enlarged cross-sectional view of a state in which the deformation preventing means according to the present invention is provided and the deformation tube is inserted. 3 is a schematic view showing a process of inserting a deformed tube according to the present invention, and FIG. 4 is a perspective view showing a state in which the deformed tube according to the present invention is inserted into a buried tube.

Deformation pipe insertion method and apparatus for preventing deformation due to temperature changes according to the present invention is a construction method and apparatus for repairing or reinforcing the buried pipe buried in the basement in the present embodiment, the existing buried pipe As an example, the present invention will be described based on sewage pipes. However, the present invention is not limited thereto, and the present invention can be applied to repairing a buried pipe buried underground. In other words, the strain pipe insertion method and apparatus to be described later may be applied to the water pipe, for example, in the case of the gas pipe may be achieved by a predetermined deformation (that is, the deformation of the chemical resistant coating on the liner). .

As shown in Figures 1 to 4, the strain pipe insertion method and apparatus according to the present embodiment is used as a strain pipe using the introduction means 200 in the sewage pipe 100 that needs to be repaired or reinforced Inserting a liner 300 of form and flexible material; Attaching at least one elastic member (400) to both ends between the inner wall of the sewer pipe (100) and the liner (300) to improve the adhesion between the inner wall of the sewer pipe (100) and the liner (300); In order to seal the sewage pipe 100 into which the folded liner 300 is inserted, packer members 500 are mounted at both ends of the sewer pipe 100, and an injection pipe 510 is provided at the packer member 500 at one side. ) Is provided, and the packer member 500 on the opposite side is provided with a discharge pipe 520; The fluid supplied from the fluid supply unit 600 is injected into the sewage pipe 100 through the injection pipe 510 of the packer member 500 and discharged through the discharge pipe 520, and injected through the fluid supply unit 600. Liner 300 in a folded form by a fluid (eg, steam at high temperature and high pressure) (here, the liner is a material capable of high pressure expansion or the like by heat, for example, polyethylene, polyethylene composite, polyvinyl chloride). And polyvinyl chloride composite materials) are expanded and adhered to the inner wall of the sewer pipe 100; The packer member 500 is removed after the expansion-contacted liner 300 is cooled; In order to prevent deformation of the liner 300 in close contact with the inner wall of the sewage pipe 100, a deformation preventing means 700 is installed on the inner wall of the liner 300.

Here, the fluid used to expand and close the liner 300 of the folded form inserted into the sewage pipe 100 into the inner wall of the sewage pipe 100 in a circular form, that is, inflated and made of high temperature or high pressure or low pressure steam However, the present invention is not limited thereto, and the liner 300 may be made of any fluid as long as the liner 300 may be inflated in a circular shape to be in close contact. In addition, when the fluid supply unit 600 uses the fluid as a vapor in FIG. 1, the fluid supply unit 600 illustrates a water supply tank 610 and a pump 620 for supplying the fluid to the injection pipe 510 of the packer member. will be.

In this embodiment, the method of inserting the liner 300 used as the deformation pipe by the inlet means 200 into the existing sewer pipe 100, as shown in Figure 3, the winch ( 210 is positioned, and the other end of the wire 220 is connected to a mobile device (not shown) after connecting one end of the wire 220 to the winch 210, the mobile device moves the sewage pipe 100 To be moved to the other manhole 110. Thereafter, the wire 220 connected to the mobile device is connected to the folded liner 300 located at the other side, and the liner 300 is connected from the manhole 110 at the other side by the winch 210. It enters into the manhole 110 to be inserted into the sewage pipe 100. Here, the mobile device may be any one as long as it can move the wire 220 through the sewer pipe 100, and may be a wireless robot as an example.

As such, the state in which the folded liner 300 is inserted into the sewer 100 is as shown in FIG. 4, and in this embodiment, the liner 300 is formed in a “c” shape. If it can be easily inserted into the sewer pipe 100 may be made in other forms. This, the liner 300 is produced in the reel form by transforming the liner (that is, the material of the liner 300 will be described later) that is a pipe in the factory to the "c" shape after the extrusion, in this case the liner 300 ) Quality is controlled at the time of production at the factory to maintain a constant quality, that is, unlike other methods, the method according to the present invention does not require a separate curing process in the field, so the quality managed at the time of production at the factory Can be maintained.

The material of the liner 300 used in the strain pipe insertion method and the device according to the present invention should be easy to process and construct, secure field applicability, secure strength and long-term stability to withstand external pressure, and be folded. Liner should be capable of high-pressure expansion by heating, and should not have any change in physical properties of the folded part, excellent chemical resistance and abrasion resistance, low roughness coefficient and excellent water-permeability. It can be any material that satisfies the requirements to be small and remodelable at the occurrence of wrinkles, to be economical and to be mass-produced. However, according to several experiments for finding a better material of the liner 300 (see Table 1 below, Table 1 shows experimental data of the liner material according to the present invention), the material of the liner 300 Any one selected from the group consisting of polyethylene (PE) or high-density polyethylene (HDPE), polyethylene composite (PE composite), polyvinyl chloride (PVC) and polyvinyl chloride composite (PVC composite) It is preferable to consist of one.

Figure 5 is a perspective view showing a process of installing the deformation preventing means according to the invention on the inner wall of the liner.

Installation of the deformation preventing means 700, as shown in Figures 1, 2 and 5, the one or more ring member 710 with a portion cut appropriately in the inner diameter of the sewage pipe 100 or the liner 300 is provided (Fig. 5 (a)); Fixing the ring member 710 to both ends of the inner wall of the liner 300 in close contact with the sewer pipe 100 using a fixing means 720, for example, a jig (FIG. 5 (b, c)); A heat source is applied to the liner 300 to which the ring member 710 is tightly fixed to improve adhesion between the liner 300 and the ring member 710 (for this purpose, a heat source is applied to the ring member 710 to provide a liner ( 300) to increase the adhesion by recessing a portion into) (Fig. 5 (d)); The wedge 730 is inserted into the cut portion of the ring member 710 by press fit so as to prevent deformation of the liner 300 and then welded (Fig. 5 (e, f, g)). Figure 5 (h) shows a state in which the ring member 710 is inserted into the inner wall of the liner 300, after the deformation preventing means 700 is installed in this way, both ends and the connecting portion of the liner 300 They are finished with a robot cutter.

Here, the ring member 710 fixed to the inner wall of the liner 300 is prevented from deformation through the strong compression of the liner 300 to the sewer pipe 100, as shown in Figure 2 the sewer pipe 100 At least a portion of the elastic member 400 attached to the inner wall is preferably disposed to overlap.

In this embodiment, the elastic member 400 and the deformation preventing means 700 is to prevent the deformation and the deformation due to the limit of the liner 300 material (that is, the limit that the plastic material can be deformed by heat) and In order to prevent the thickness of the liner 300 becomes thick. Here, the deformation is a phenomenon in which the liner 300 contracts or expands due to temperature change, or the liner 300 lifts or tears into the sewer pipe 100 due to such contraction or expansion, which is the elastic member 400. And it can be prevented by the deformation preventing means 700.

In addition, since the elastic member 400 and the deformation preventing means 700 suppresses contraction or expansion of the liner 300 and thus improves adhesion, foreign matter or sewage may enter the liner 300 and the sewer pipe 100. You can prevent it.

In the present embodiment, the ring member 710 is preferably made of a steel material having corrosion resistance, wear resistance and rigidity to prevent deformation of the liner 300, more preferably made of stainless steel material. However, the material of the ring member 710 is not limited thereto, and may be made of any material as long as it can prevent deformation of the liner 300 by providing the rigidity, corrosion resistance, and abrasion resistance.

In addition, the ring member 710 of the stainless steel material can be immediately installed as needed in the field regardless of the diameter of the pipe, the sewer pipe 100 and the liner 300 by the strong compression of the liner 300 to the sewage pipe 100 Watertightness and shrinkage or expansion therebetween can be reduced, and construction is easy using the fixing means 720 (for example, a jig, etc.), and the heat source is applied to the liner 300 where the ring member 710 is tightly fixed. By applying the ring member 710 is recessed between the liner 300, there is almost no reduction in the roughness coefficient and tube diameter can be prevented from reducing the flow rate.

In addition, in the present embodiment, the elastic member 400 for improving watertightness by improving the adhesion between the sewer pipe 100 and the liner 300 may be made of a water-expandable rubber material, but is not limited thereto. As long as the watertightness can be improved by improving the adhesion between the and liner 300, the material may be made of any material.

When explaining the effect and action of the non-excavation strain pipe insertion method and apparatus having a deformation preventing means by the temperature change configured as described above in more detail as follows. Hereinafter, in addition to Table 1, the experiment on the material of the liner according to the present invention will be described in detail.

Table 2 shows the experimental data of the coefficient of linear expansion of the liner material with temperature according to the present invention, Figure 6 is a graph showing the experimental data of the change in shrinkage amount of the liner material with temperature according to the present invention, the sensor shown in Figure 6 Sensors 1, 2, 3 and 4 are sensors installed on the liner material for measurement, and arrows indicate where the heating has stopped.

As shown in Table 2 and Figure 6, according to the results of the test the shrinkage according to the temperature of the liner material according to the present invention, it can be seen that the shrinkage / expansion in the circumferential direction and the longitudinal direction is small, and the sewer pipe 100 It is preferable that the material of the liner applied to the method and the apparatus is preferable because the predicted amount due to the coefficient of linear expansion when the length of 50 m (generally, the length of the sewage pipe in Korea, that is, the length from one manhole to the other manhole) is also small. Able to know.

Table 3 shows the wear resistance test data (weight change, g) measured for 96h of the liner material according to the present invention, Table 4 shows the prediction for wear resistance after 50 years based on the test data of Table 3, FIG. 7 is a graph predicting wear resistance (weight change) after 50 years of the liner material according to the present invention.

As shown in Table 3, Table 4 and Figure 7, the wear resistance after 50 years of the liner 300 material according to the present invention is excellent, it can be seen that the material of the liner applied to the present method and apparatus is preferable.

In addition, by examining the roughness coefficient in the strain pipe (liner) insertion method and apparatus according to the present invention looks at the water flow capacity when the liner 300 is in close contact with the inner wall of the existing sewer pipe (100). Table 5 shows the experimental data (average value of 10 times) of the roughness coefficient when the liner according to the present invention is inserted.

As shown in Table 5, when the flow rate of the sewer pipe is calculated based on the roughness coefficient after the liner according to the modified pipe insertion method and the device of the present invention is inserted and repaired, first, the flow rate in the general sewer pipe can be obtained by the following equation. have.

식(1)

Formula (1)

Where Q = flow rate, V = flow rate, A = cross-sectional area, n = roughness factor,

           R = Severe (D / 4), I = Gradient Gradient, D = Diameter of Pipe,

C = π / 4 X (1/4) ^(2/3) XI ^(1/2) )

In the present embodiment, when the liner is constructed at a diameter of 300 mm, the I value is the same, so that if the thickness of the liner is 6.4 mm on the average, the diameter reduction is 12.8 mm, so that a total diameter reduction of about 4% appears. Accordingly, when the flow rate of the existing sewer pipe 100 is Q ₀ , and the flow rate after repairing by inserting a liner is Q ₁ , the water-permeability according to the diameter reduction is examined according to Equation (1) as follows. Is saved.

As such, it can be seen that even though 4% of tube diameter reduction occurs due to the insertion of the liner 300, the increase in water-permeability occurs due to the excellent roughness coefficient. It can be seen that the reduction in water supply capacity does not occur even if the reduction occurs.

As described above, it can be seen that the material of the liner in the strain pipe insertion method and the device according to the present invention is preferable, and in the construction, which material is optimal and the thickness is determined by the experimental data. You can choose the optimal state.

Hereinafter, the effect when the elastic member (water-expandable rubber material 400) and the deformation preventing means (ring member 710) according to the present invention are provided.

Table 6 shows experimental data of shrinkage / expansion after construction by inserting a liner according to the present invention, and Table 7 shows experimental data of shrinkage / expansion when a ring member was provided during construction of the liner according to the present invention. Table 8 shows experimental data of shrinkage / expansion when the water-expandable rubber material and the ring member were provided during the construction of the liner according to the present invention, and Table 9 is provided with the deformation preventing means according to the present invention. Experimental data of the coefficient of linear expansion in the strain pipe insertion method and the device is shown, Figure 8 is not provided with the case when the water-expandable rubber material and the ring member is provided in the strain pipe insertion method and device equipped with a strain preventing means according to the present invention. It is a graph showing the amount of change in shrinkage / expansion when not.

Here, the longitudinal directions 1 and 2 and the circumferential directions 1 and 2 shown in Tables 6 to 8 show data measured by installing two measuring gauges in the longitudinal direction and two locations in the circumferential direction.

As shown in Table 6, Table 7, Table 8, Table 9 and Figure 8, when the water-expandable rubber material 400 and the ring member 710 according to the present invention is installed, the shrinkage / expansion rate is found to be very reduced In this case, it can be seen that when the strain pipe insertion method and apparatus equipped with the deformation preventing means according to the present invention are applied in the field, a large ripple effect can be obtained.

In addition, Table 10 shows the experimental data of the amount of leakage in the sewer pipe in the strain pipe insertion method and apparatus equipped with deformation preventing means according to the present invention.

As shown in Table 10, the deformation preventing means according to the present invention, that is, the deformation pipe insertion method and the device provided with the ring member 710 and the water-expandable rubber material 400 has a great effect on reducing the leakage Giving.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

As described above, according to the present invention, the non-excavation method of inserting the deformation tube does not need a process of curing the resin in the field, so it is excellent in field adaptability, and the product produced in the factory can be applied as it is to ensure quality stability and It is easy to control quality, and it does not need hardening on site compared to other construction methods, so it is possible to realize shortening of construction period, etc., and it is economical, and it does not cause deterioration of water supply capacity due to reduction of buried diameter due to excellent roughness coefficient. There is an effect that is suitable for eco-friendliness that does not emit substances.

In addition, according to the present invention there is an effect to reduce or improve the shrinkage or expansion problem of the liner that may be caused by the temperature change during the maintenance and reinforcement of the underground buried pipe by using the deformation preventing means.

Claims (15)

A liner of a folded and flexible material is inserted into the existing buried pipe for use in repair or reinforcement as a deformed pipe using an inlet means; At least one elastic member is attached to both ends of the buried pipe inner wall and the liner; A packer member is mounted at both ends of the buried pipe in order to seal the buried pipe into which the liner of the folded shape is inserted, the packer member of one side is provided with an injection pipe, and an opposite piper member is provided with a discharge pipe; The fluid supplied from the fluid supply part is injected into the buried pipe through the injection pipe of the packer member and discharged through the discharge pipe, and the liner in a folded form is unfolded by the fluid injected through the fluid supply and the expansion and close contact with the inner wall of the buried pipe is carried out. Become; The packer member is removed after the expansion-contacted liner is cooled; In order to prevent deformation of the liner inflated and adhered to the inner wall of the buried pipe is provided with deformation preventing means on the inner wall of the liner Strain tube insertion method to prevent deformation due to temperature changes. The method of claim 1, The material of the liner is made of any one selected from the group consisting of polyethylene, polyethylene composites, polyvinyl chloride, and polyvinyl chloride composites. Strain tube insertion method to prevent deformation due to temperature changes. The method of claim 1, The inlet means A winch positioned in the other manhole to insert the folded liner located in the manhole on one side into the buried pipe; A wire connected at one end to the winch and at the other end to a liner; And Mobile device that can move along the inside of the buried pipe to connect the wire connected to the winch to the liner Deformation tube insertion method for preventing deformation due to temperature changes, including. The method of claim 1, The elastic member is made of a water-expandable rubber material Strain tube insertion method to prevent deformation due to temperature changes. The method of claim 1, The fluid consists of steam of high temperature, high pressure or high temperature low pressure Strain tube insertion method to prevent deformation due to temperature changes. The method of claim 1, Installation of the deformation preventing means One or more ring members whose portions are cut are fixed to both ends of the inner wall of the liner in close contact with the buried pipe; A heat source is applied to the liner where the ring member is tightly fixed; Welded after inserting the wedge into the cut-out portion of the ring member to prevent deformation of the liner Strain tube insertion method to prevent deformation due to temperature changes. The method of claim 6, The ring member tightly fixed to the inner wall of the liner At least a portion of the elastic member attached to the inner wall of the buried pipe is disposed so as to prevent deformation through the strong compression of the liner to the buried pipe Strain tube insertion method to prevent deformation due to temperature changes. The method of claim 6, By applying a heat source to the ring member tightly fixed to the inner wall of the liner, the ring member is recessed between the liners so that the reduction of the roughness coefficient and the liner diameter does not occur, thereby preventing the reduction of the flow rate. Strain tube insertion method to prevent deformation due to temperature changes. The method of claim 6, The ring member is made of a steel material with corrosion resistance, wear resistance and rigidity to prevent deformation of the liner Strain tube insertion method to prevent deformation due to temperature changes. The method of claim 1, The existing buried pipe is made of sewage pipe or water pipe Strain tube insertion method to prevent deformation due to temperature changes. A liner of a folded and flexible material, which is inserted into the existing buried pipe using a retraction means for repair or reinforcement and is used as a deformation pipe; One or more elastic members attached to both ends of the buried pipe inner wall and the liner; A packer member mounted at both ends of the buried pipe in order to seal the buried pipe into which the liner of the folded shape is inserted, one side of which is provided with an injection pipe, and an opposite side of the packer member; A fluid supply unit for supplying a fluid to be injected into the buried pipe and discharged through the discharge pipe so that the folded liner is expanded and tightly adhered to the inner wall of the buried pipe; And Deformation preventing means is installed on the inner wall of the liner to prevent deformation of the liner in close contact with the inner wall of the buried pipe Deformation tube inserting device for preventing deformation due to temperature changes, including. The method of claim 11, The material of the liner is made of any one selected from the group consisting of polyethylene, polyethylene composites, polyvinyl chloride and polyvinyl chloride composites; The elastic member is made of a water-expandable rubber material; The fluid consists of steam of high temperature, high pressure or high temperature low pressure Deformation tube insertion device to prevent deformation due to temperature changes. The method of claim 11, The deformation preventing means One or more ring members in which portions fixed to both ends of an inner wall of the liner adhered to the buried pipe are cut; Fastening means for fastening and adjusting the ring member to the inner wall of the liner; And Wedge welded after being inserted by press fit into the cut portion of the ring member to prevent deformation of the liner Deformation tube insertion device for preventing deformation due to temperature changes, including. The method of claim 13, The ring member tightly fixed to the inner wall of the liner is disposed so that at least a portion of the ring member overlaps the elastic member attached to the inner wall of the buried pipe so as to prevent deformation through strong compression of the liner to the buried pipe; By applying a heat source to the ring member tightly fixed to the inner wall of the liner, the ring member is recessed between the liners so that the reduction of the roughness coefficient and the liner diameter does not occur, thereby preventing the reduction of the flow rate; The ring member is made of a steel material with corrosion resistance, wear resistance and rigidity to prevent deformation of the liner Deformation tube insertion device to prevent deformation due to temperature changes. The method of claim 11, The existing buried pipe is made of sewage pipe or water pipe Deformation tube insertion device to prevent deformation due to temperature changes.

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