KR20020064049A - Manhole repairing apparatus and manhole repairing method using the same - Google Patents

Abstract

PURPOSE: A manhole repair method using a manhole repair device is provided to reduce the term of repair works for a manhole and to prevent an inflow of rainwater and wastewater. CONSTITUTION: The manhole repair method using a manhole repair device comprises the steps of: diverting water by installing a manhole(200) to be repaired, an intake pipe(201), a drainpipe(202) and a connection pipe(203); installing a stiffening tube(300) filled up with thermosetting resins to the inner wall of the manhole(200); installing an expansion tube(400) having the same size and shape as the manhole into the manhole(200) attached with the stiffening tube(400); installing and fixing a manhole repair device connected with the neck of the expansion tube(400) into the upper part of an opening of the manhole(200); hardening the resins filled in the stiffening tube(300) by adding temperature and pressure to the expansion tube(400), then adhering closely to the inner wall of the manhole(200); and finishing by separating the expansion tube(400) and the manhole repair device from the manhole(200), then removing the connection pipe(203) installed to divert water.

Description

Manhole repairing apparatus and manhole repairing method using the same}

The present invention relates to a manhole repair apparatus and a manhole repair method using the same.

More specifically, a reinforcing tube filled with a thermosetting resin is attached to the inner wall of the manhole requiring repair, and a neck portion is installed in the manhole repair device fixed to the manhole inlet so that the reinforcing tube can be completely attached to the inner wall of the manhole. The thermosetting resin of the reinforcement tube is heated by heated water or hot air while maintaining a constant pressure inside the expansion tube by using a pressure device installed in the manhole repair device after placing the expansion tube similar in shape to the manhole in the manhole. As a reinforcing tube acts as a reinforcing material or water reinforcement to repair the manhole repair method that can repair the broken manhole, non-excavation manhole maintenance that does not need to excavate the ground buried manhole to repair the manhole It relates to a device and a manhole repair method using the same.

Conventionally, when a manhole cracks and corrodes, or when unknown water flows in or out of a manhole, a manhole buried in the ground is removed, a new manhole is reinstalled, or a cement mortar treatment is performed on a part where a loss or crack has occurred. It was. Although not introduced in Korea, it is used in foreign countries. Reinforcement lining method using reinforcement tube and thermosetting resin is used. There is also a manufacturing method for attaching a tape-type lining material, and a coating method for applying epoxy or polyurethane resin. Is used.

However, in the case of the new installation method by excavating the ground in which the manhole is buried, there is a lot of time and economic loss, and there are many problems in transportation and environment due to the ground excavation. In addition, there is a disadvantage that the construction must be carried out in parallel corrosion protection measures.

In addition, in the case of filling the cracks or erosion site with cement mortar, it is not possible to prevent complete leakage because the cement mortar is separated from the crack or erosion site over time.

In addition, in the case of using the reinforcement tube and the thermosetting resin, in order to fit the size of the reinforcement tube to the size of the manhole, accurate dimension measurement and three-dimensional solid sewing of the reinforcement tube are required. Laws should be developed. In addition, since the lifting phenomenon occurs in the upper slab and the corner of the manhole, the mortar needs to be filled in a portion where the lifting phenomenon occurs, so that the operation is cumbersome.

In addition, the coating method using an epoxy or polyurethane resin has a disadvantage in that the material cost is expensive, not structural reinforcement and periodically reapplying the material.

Therefore, the present inventors impregnate a thermosetting resin in a reinforcing tube (polyester felt) capable of leaking, preventing corrosion, and structural reinforcing, and then folding or reinforcing the reinforcing tube and inserting it into a manhole requiring repair. Loosen to attach to the inner wall of the manhole, the expansion tube similar to the shape of the manhole is inserted into the manhole in the rolled or folded state, and then install a manhole repair device connected to the neck of the expansion tube at the manhole inlet, using the pressure tube Excavate the ground to repair the manhole, since the thermosetting resin of the manhole tube attached to the inner wall of the manhole is cured using water or hot air heated by the heat generating device while maintaining a constant pressure inside. No need for maintenance, no maintenance and management of manhole after repair, no manhole maintenance costs Developed a manhole repair device and a manhole repair method using the same.

An object of the present invention is to attach a reinforcement tube to the inner wall of the damaged manhole in the state that does not excavate the ground in which the manhole is buried to repair the manhole, the reinforcement tube is easy to the inner wall of the manhole by the expansion pressure of the expansion tube Since the manhole can be repaired by attaching it securely, the manhole can be repaired in a much shorter time (about 4 hours) than when the manhole is removed and the new manhole is re-installed. It is to provide a non-excavated manhole repair device that does not affect the traffic of vehicles and the traffic of residents and the manhole repair method using the same.

Another object of the present invention is that the manhole is structurally safe, but when the manhole needs to be repaired to prevent corrosion of the manhole, the thickness of the reinforcing tube (reinforcement such as felt made of polyester) can cope with corrosion by sewage or the like. Even in the case of manholes that are manufactured and constructed with a thickness, even in the case of structurally problematic manholes, the thickness of the manhole tube can be adjusted to the thickness with structurally necessary strength to complete structural reinforcement. It is to provide a manhole repair device capable of structural reinforcement and a manhole repair method using the same.

Still another object of the present invention is that the reinforcing tube used for repairing the manhole can be easily cut to the manhole wall by the expansion pressure, according to the size of the manhole in the manhole to which the reinforcing tube is attached, while having a thin thickness It is to provide a manhole repair device using an expansion tube that can withstand a large expansion pressure and a manhole repair method using the same.

Another object of the present invention is to be installed at the inlet of the manhole in order to apply the appropriate pressure, heated water and hot air to the expansion tube capable of applying expansion pressure to the reinforcement tube attached to the inner wall of the manhole, pressure injection pipe, pressure discharge pipe, temperature It is to provide a manhole repair device to which a sensor, a heat generator, a heat control device, a submersible pump, etc. can be attached, and a manhole repair method using the same.

Still another object of the present invention is a manhole that does not flow into the manhole through the inlet and outlet pipe outer wall and the manhole connection after the manhole maintenance by using the water pipe and the tube reinforcement tube installed in the inlet and outlet pipe connected to the manhole It is to provide a repair device and a manhole repair method using the same.

Still another object of the present invention relates to a manhole repair apparatus capable of repairing a manhole by dry work using a packer and a connection hose used for water turning to repair the manhole, and a manhole repair method using the same.

1A is a perspective view of a manhole repair apparatus of the present invention.

1B is a cross-sectional view of the manhole repair apparatus of the present invention.

2A is a cross-sectional view of Embodiment 1 of the manhole repair apparatus of the present invention.

2B is a cross-sectional view of Embodiment 2 of the manhole repair apparatus of the present invention.

2C is a cross-sectional view of Embodiment 3 of the manhole repair apparatus of the present invention.

3 is a conceptual diagram of a construction method for repairing a manhole using the manhole repair apparatus (Example 1) of the present invention.

4 is a cross-sectional view of an apparatus for filling a thermosetting resin into the reinforcing tube of the present invention.

5a is a conceptual diagram of Example 1 of a method of curing a thermosetting resin in a reinforcing tube of the present invention.

5b is a conceptual diagram of Example 2 of a method of curing a thermosetting resin in a reinforcing tube of the present invention.

5c is a conceptual diagram of Example 3 of a method of curing a thermosetting resin in a reinforcing tube of the present invention.

6A and 6B are a plan view and a sectional view of the water jet device used for finishing the manhole repair method using the manhole repair device.

6C is a cross-sectional view of the installation of the water jet device used for finishing the manhole repair method using the manhole repair device.

<Description of Major Codes in Drawings>

10: upper manhole fixing device 11: upper hole

12: horizontal hole 13: vertical hole

14: bottom part 20: lower manhole fixing device

21: lower hollow hall 22: protrusion

30: Pressure injection pipe 31: Opening and closing valve

40: temperature sensor 50: pressure discharge pipe

60: heat generator 61: thermal coil

70: water outlet pipe 71: submersible pump

72: hose with water hole 80: water inlet pipe

100: manhole repair device 200: manhole

201: Intake pipe 202: Drain pipe

203: connector 204: packer

205: connecting hose 300: reinforcing tube

301: rotating rod 302: cylindrical drum

303: vacuum valve 304: drum lid

305: Tightening screw 306: Drum rotating device

307: thermosetting resin 308: resin impregnation device

400: expansion tube 500: pressurizer

600: spacer 700: fixing device

800: control box 900: exponent

901: circular plate of the indexing device 902: insertion tube of the indexing device

903: Pipe (intake pipe or drain pipe) reinforcement tube

The present invention is explained in detail by the drawings.

Figure 1a is a perspective view of the manhole repair device 100 of the present invention, Figure 1b is a cross-sectional view of the manhole repair device 100 of the present invention, Figure 3 is a method for repairing the manhole using the manhole repair device 100 Is a conceptual diagram.

The manhole repair apparatus 100 includes an upper manhole fixing device 10 and a lower manhole fixing device 20, which will be described with reference to FIGS. 1 and 3.

The upper manhole fixing device 10 is a plate having a predetermined thickness, and includes a plurality of horizontal holes 12 formed at regular intervals through the upper hole 11 formed by dipping an upper surface thereof, and penetrating the outer and inner circumferential surfaces of the upper hole 11. ) And a plurality of vertical holes 13 formed in the bottom of the plate.

The horizontal hole 12 is a hole in which a fixing device 700 (fixing pin or bolt) is inserted into the spacer 600 formed at the manhole inlet part to fix the manhole repair device 100 as shown in FIG. 3. That is, the manhole repair apparatus 100 of the present invention is inserted into the horizontal hole 12 and fixed to the manhole inlet portion requiring repair by the fixing device 700 embedded in the spacer 600.

Vertical hole 13 is a hole formed perpendicular to the bottom of the upper manhole fixing device 10, the pressure injection pipe 30, according to the method of curing the thermosetting resin filled in the reinforcement tube 300 to be described later, The temperature sensor 40, the pressure discharge pipe 50 and the heat generating device 60, the water outlet pipe 70 and the water inlet pipe 80 is inserted and fixed.

1A and 1B, four horizontal holes 12 and two vertical holes 13 are formed, but more may be installed depending on the size of the manhole and the manhole maintenance position.

The lower manhole fixing device 20 is continuous to the lower portion of the bottom surface of the upper manhole fixing device 10 and is formed to protrude vertically downward with a predetermined length, and comprises a lower hollow tube 21 having protrusions 22 formed on the outer circumferential surface thereof. do.

The lower hollow tube 21 has a wedge-shaped protrusion 22 formed on the outer circumferential surface to form a layer, and as shown in FIG. 3, the neck portion of the expansion tube 400 having a shape similar to the manhole shape described below may be attached without slipping. The protrusion 22 may have any shape as long as the expansion tube 400 does not slip, such as a triangle or a quadrangle. In addition, the diameter of the lower hollow tube 21 is formed smaller than the diameter of the upper manhole fixing device (10).

The manhole repair apparatus 100 of the present invention consisting of the upper manhole fixing device 10 and the lower manhole fixing device 20 may be formed in a circular shape in FIG. Fluctuate accordingly.

Manhole repair method using the manhole repair apparatus of the present invention,

Installing a connection pipe 203 via the water supply pipe 201 and the drain pipe 202 connected to the manhole 200 requiring repair;

Installing a reinforcing tube (300) filled with a thermosetting resin on an inner wall of the manhole (200);

Installing an expansion tube (400) matching the size and shape of the manhole in the manhole (200) in which the reinforcing tube (300) is installed;

Fixing the manhole repair apparatus 100 to which the neck of the expansion tube 400 is connected to the upper inside of the inlet of the manhole 200, and then fixing the manhole repair apparatus 100;

Hardening the thermosetting resin filled in the reinforcing tube 300 to bring the reinforcing tube 300 into close contact with the inner wall of the manhole 200;

Separating the expansion tube 400 and the manhole repair apparatus 100 from the manhole 200, and then removing and finishing the connection pipe 203 installed for turning water;

It includes, and will be described with reference to FIGS.

As can be seen in Figure 3 in the lower part of the manhole 200 that needs repair is formed inlet pipe 201 through which various flowing water (waste water or rainwater) is introduced into the manhole 200, the inlet pipe 201 Various flowing waters are discharged through the drain pipe 202 via the manhole 200. Therefore, the manhole maintenance work is hindered by work due to various flowing water is installed in the inlet pipe 201 and the drain pipe 202, as shown in Figure 3, perforated packer (packer, 204), the packer 204 By connecting the connection pipe 203 using the connection hose 205 to turn the water to prevent the disconnection of sewage during the operation. The packer 204 has a cylindrical shape of a rubber material, and has a hole formed therein so that the connection hose 205 can be inserted in the center to prevent leakage that may occur when the connection pipe 203 is installed. Since the packer 204 is inserted into the inlet pipe 201 and the drain pipe 202, the connection hose 205 is not easy to install the connection pipe 203 in a narrow space such as the manhole. It serves as an intermediate connecting medium of the connecting pipe 203, the size can be adjusted according to the size of the packer 204 and the connecting pipe 203. If the flow rate is not large, it is preferable to adjust the size of the fraud packer 204 and the connection hose 205 so that the connection pipe 203 of a diameter smaller than the diameters of the inlet pipe 201 and the drain pipe 202 can be used.

The connection pipe 203 may be a pipe that can be carried through the entrance of the corrugated corrugated pipe or PVC pipe, such as the manhole 200, and dry operation is possible when the water turning operation is completed.

When the water turning operation is finished, the reinforcing tube 300 of the manhole 200 is attached to the inner wall of the manhole 200 as shown in FIG. Since the reinforcing tube 300 is filled with a thermosetting resin therein, when the thermosetting resin is cured by the pressure and heat of the expansion tube 400 in the state attached to the inner wall of the manhole, the reinforcing tube 300 is completely in contact with the inner wall of the manhole 200.

The material of the reinforcing tube 300 is usually a polyester reinforcing material (usually felt) is used, glass fiber can be used in parallel. The thickness can be adjusted according to the breakage of the manhole and the purpose of repairing the manhole (corrosion prevention, structural reinforcement of the manhole), and it is cut into various sizes according to the area or depth of the manhole.

In addition, since the thermosetting resin is filled in the reinforcing tube 300, the thermosetting resin is cured by a constant pressure and heated water, hot air, or hot air inside the expansion tube 400 to be described later, so that the reinforcing tube 300 is a manhole. (200) An attachment force that is not detached from the inner wall is secured.

A method of filling the thermosetting resin in the reinforcing tube 300 will be described with reference to FIG. 4.

4 is a cross-sectional view of a device 308 for filling a thermosetting resin into the reinforcing tube 300, and includes a cylindrical drum 302, a drum lid 304 and a drum rotating device 306.

The cylindrical drum 302 is open on one side and closed on the other. The rotating rod 301 is formed to protrude from the center of the closed surface to be connected to the drum rotating device (306). In addition, a plurality of tightening screws 305 are formed in the drum lid 304 to be attached to the cylindrical drum 302 in close contact, and a rotating rod 301 protrudes from the center to be connected to the drum rotating device 306. After the drum lid 304 is attached to the cylindrical drum 302 in close contact with the cylindrical lid 302, a vacuum valve 303 for extracting air from the drum is formed.

The reinforcing tube 300 is rolled into a suitable size so as to be placed in the cylindrical drum 302, and then placed inside the cylindrical drum 302. Then, the thermosetting resin 307 is added in an amount sufficient to sufficiently fill the reinforcing tube 300. The manhole cover 304 is brought into close contact with the tightening screw 305.

When the vacuum pump is connected to the vacuum valve 303 of the drum lid 304 and the vacuum pump is connected, the inside of the drum is in a vacuum state, whereby the thermosetting resin 307 is not partially filled by the internal air in the reinforcing tube 300. You can prevent it. When the inside of the cylindrical drum 302 is in a vacuum state, the cylindrical drum 302 is laid down, and both rotating rods 301 are installed on the drum rotating device 306. When the rotating device 306 is operated, it is reinforced by centrifugal force by rotation. The tube 300 is filled with a thermosetting resin.

After attaching the reinforcing tube 300 to the inner wall of the manhole 200, the expansion tube 400 similar to the shape of the inside of the manhole to be repaired as shown in Figure 3 in order to cure the thermosetting resin filled in the reinforcement tube 300 Inserted into the manhole, the neck portion of the expansion tube 400 is attached to the projection of the lower manhole fixing device 20 of the manhole repair device 100. The expansion tube 400 is thin, but can withstand the pressure by the pressure device 500 described later, the heat air, heated water or the like applied by the heat generating device 60 or the heat supply device of the pressure device 500. A fiber material that can withstand hot air and can easily be cut is used, and the neck part is connected to the manhole repair device 100 after being inserted into the manhole while being folded in a size that can be easily inserted into the manhole entrance. .

The manhole repair apparatus 100 uses a fixing device 700 (a fixing pin or a bolt is used) in a plurality of horizontal holes 12 formed in the upper manhole fixing device 10 while the neck of the expansion tube 400 is connected. The fixing device 600 is embedded in the spacer 600 inserted between the manhole inlet and the manhole repair device 100, and the manhole repair device 100 is fixed to the manhole inlet. The spacer 600 is used to fill the play with the manhole inlet generated because the size of the manhole repair device 100 is inserted into the manhole inlet, it is used by molding the wood or plastic or Other materials may be used if they can be filled.

The expansion tube 400 is expanded by receiving a constant pressure by the pressure device 500 connected to the pressure injection pipe 30 of the manhole repair device 100, the expansion pressure is the expansion tube 200 is attached to the inner wall of the manhole By pressing the reinforcement tube 300 uniformly to attach the reinforcement tube 300 to the inner wall of the manhole without lifting phenomenon, and because the expansion tube 400 matches the shape of the inside of the manhole 200, the inner corner of the manhole 200 It can also be easily attached.

When the reinforcing tube 300 is attached to the inner wall of the manhole 200, the thermosetting resin filled in the reinforcing tube 300 by the heated water or hot air using the heat generating device 60 to be cured.

The method of curing the thermosetting resin filled in the reinforcing tube will be described in detail with reference to FIGS. 2 (Examples 1, 2, 3) and 5 (Examples 1, 2, 3).

<Example 1>

Embodiment 1 is a method of curing the thermosetting resin of the reinforcing tube 300 by heated air by raising the air inside the expansion tube 400 to a predetermined temperature by the heat generating device 60, Figure 3 is carried out The concept of the construction method for repairing the manhole by applying Example 1 is shown.

In order to apply heat to the air in the expansion tube 400, the pressure injection pipe 30, the temperature sensor 40, the pressure discharge pipe 50 in the vertical hole 13 of the manhole repair device 100, as shown in Figure 2a and Install the heat generating device (60).

The pressure injection pipe 30 is connected to the pressure (compresser, 500) as shown in Figure 5a and can adjust the pressure applied by the opening and closing valve 31, even if the temperature of the air inside the expansion tube 400 rises The pressure is kept constant by using the opening / closing valve 31 of the pressure discharge pipe 50 so that the pressure inside the expansion does not change. At this time, the required pressure is to be more than the minimum pressure for the structural stability of the manhole, and check the pressure measuring device attached to the pressure discharge pipe (50).

The heat generating device 60 is a heat coil 61 is attached to the tip as a current flows through the current to the heat coil 61 by electricity, the heat control device connected to the temperature sensor 40 to be described later ( By connecting control box 800, heat generation is controlled.

The temperature sensor 40 is connected to the heat regulating device 800 as a sensor for measuring the temperature of the air so that the air inside the expansion tube 200 does not rise above a predetermined temperature.

The pressure injection pipe 30, the pressure discharge pipe 50, the temperature sensor 40, the heat generating device 60 and the heat adjusting device 800, one by one in Figures 2a and 5a according to the size of the manhole 200 It is installed but can be installed more than that.

The heat curable resin filled inside the reinforcement tube 300 is cured by the hot air applied by the heat radiation device 60, whereby the reinforcement tube 300 is completely attached to the inner wall of the manhole, and the reinforcement tube 300 is completely When attached to the inner wall of the manhole 200, to stop the operation of the heat supply device 60 to lower the temperature inside the expansion tube 400, the cold air is applied to the inside of the expansion tube 400 by the pressure unit 500 To lose. This is to prevent the occurrence of shrinkage of the thermosetting resin, because the temperature in the expansion tube drops sharply. Even when cold air is applied, the pressure of the expansion tube 400 is kept constant so that the reinforcement tube 300 can be completely attached to the inner wall of the manhole.

<Example 2>

In the second embodiment, a predetermined amount of water is introduced into the expansion tube 400, and the heated water is raised to a predetermined temperature by the heat generating device 60, and then the heated water is connected to a water pump 71. It is a method of curing the thermosetting resin of the reinforcement tube 300 by spraying the heated water to the reinforcement tube 300 using.

In order to apply heat to the water introduced into the expansion tube 400, the pressure injection pipe 30, the temperature sensor 40, the pressure discharge pipe 50 in the vertical hole 13 of the manhole repair apparatus 100 as shown in Figure 2b , The heat generating device 60, the water outlet pipe 70 and the water inlet pipe 80 is installed.

Water is introduced into the expansion tube 400 through the water inlet pipe 80 to be about 50cm. The amount of water introduced varies depending on the area of the reinforcing tube 300 attached to the size of the manhole 200.

The heat generating device 60 is a heat coil 61 is attached to the tip as a current flows through the current to the heat coil 61 by electricity, the heat control device connected to the temperature sensor 40 to be described later ( Heat generation is controlled by the control box 800 is connected, and the length is adjusted so that the thermal coil 61 is immersed in the injected water. Accordingly, the water is heated by the heat generator submerged in the mole, and the heated water transfers heat to the reinforcing tube 300 attached to the inner wall of the manhole, thereby curing the thermosetting resin filled therein.

A water pump 71 is installed at the tip of the water outlet pipe 70, and a hose 72 having a plurality of holes formed therein is connected to be sprayed with heated water. The heated water is moved with a constant water pressure to the upper part of the manhole through the hose 72 connected to the water outlet pipe 70 by operating the submersible pump 71, and a plurality of holes are formed in the hose 72. Water is automatically sprayed on the reinforcement tube 300 when the water is moved and the thermosetting resin inside the reinforcement tube 300 is cured by the water sprayed by heating. At this time, the lid is closed so that the water heated outside the water outlet pipe 70 does not escape.

A pressure injector (30) is connected to the pressure injection pipe (30) and can adjust the pressure applied by the opening / closing valve (31), even if the temperature of the air inside the expansion tube (200) rises in the pressure inside the expansion. The pressure is kept constant by using the opening and closing valve 31 of the pressure discharge pipe 50 so that there is no fluctuation. At this time, the required pressure is to be more than the structural pressure acting on the manhole, and to confirm by attaching a pressure measuring device to the pressure discharge pipe (50).

The temperature sensor 40 is connected to the heat regulating device 800 by measuring the temperature of the air so that the air inside the expansion tube 200 does not rise above a predetermined temperature.

The pressure injection pipe 30, the pressure discharge pipe 50, the temperature sensor 40, the heat generating device 60 and the heat adjusting device 800 is one each in Figures 2b and 5b according to the size of the manhole 200 It is installed but can be installed more than that.

<Example 3>

Embodiment 3 expands the expansion tube 400 by applying hot air through a pressure injection tube using a heat supply device or a burner built in the pressure device 500 itself in the expansion tube 400, thereby expanding the expansion tube 400. It is a method of hardening the thermosetting resin of 300).

In order to apply hot air into the expansion tube 400, a pressure injection pipe 30, a temperature sensor 40, and a pressure discharge pipe 50 are installed in the vertical hole 13 of the manhole repair apparatus 100 as shown in FIG. 2C. .

The pressure inlet pipe 30 is connected to a pressurizer (compresser, 500) capable of applying hot air and a constant pressure by installing a burner or a heat supply device as shown in FIG. 5C, and a pressure and hot air applied by the opening / closing valve 31. It is possible to control the pressure of the expansion tube 400 by using the open / close valve 31 of the pressure discharge tube 50 so as not to change the pressure inside the expansion even if the temperature rises by hot air. At this time, the required pressure is to be at least the pressure for the structural stability of the manhole, and check the pressure measuring device attached to the pressure discharge pipe (50).

Burner or heat supply device built in the pressure is connected to a heat control device (control box, 800) connected to the temperature sensor 40 to be described later, the generation of hot air is controlled.

The temperature sensor 40 is a sensor for measuring the temperature of the air so that the air inside the expansion tube 200 does not rise above a predetermined temperature and is connected to a burner or a heat supply device of the pressure device 500.

The pressure injection pipe 30, the pressure discharge pipe 50, the temperature sensor 40 and the heat adjusting device 800 is installed one by one in Figures 2c and 5c according to the size of the manhole 200, but more than that installed Can be.

The heat curable resin filled in the reinforcement tube 300 is cured by the hot air applied by the pressure presser 500, whereby the reinforcement tube 300 is completely attached to the inner wall of the manhole, and the reinforcement tube 300 is completely manhole. (200) When attached to the inner wall, to stop the operation of the burner or the heat supply device of the pressurizer 500 in order to lower the temperature inside the expansion tube 400, the interior of the expansion tube 400 by the pressurizer 500 Allow cold air to be applied to the This is to prevent the occurrence of shrinkage of the thermosetting resin, because the temperature in the expansion tube drops sharply. Even when cold air is applied, the pressure of the expansion tube 400 is kept constant so that the reinforcement tube 300 can be completely attached to the inner wall of the manhole.

When the time determined that the reinforcing tube 300 is sufficiently attached to the inner wall of the manhole 200 by Examples 1 to 3 (curing time varies depending on the combination of the resin and the curing agent), the expansion tube 400 The internal temperature is also considerably lowered (checked by the temperature sensor 40), so that the opening and closing valve of the pressure discharge pipe 50 attached to the manhole repair device 100 opens the pressure of the expansion tube 400. Pull out.

After depressurizing as described above, the upper manhole fixing device is removed from the manhole 200 and taken out, and the expansion tube 400 fixed to the lower manhole fixing device is removed to expand the expansion tube 400 and the manhole repairing device 100. Separate.

After removing the manhole repair device 100 to which the expansion tube 400 is attached while removing the fixing device 700 inserted into the horizontal hole 12 of the manhole repair device 100 and embedded in the spacer 600, the manhole ( 200 confirm that there is no abnormality in the reinforcement tube 300 attached to the inner wall, the shape of the inlet pipe 201 and the drain pipe 202 to the reinforcing tube 300 formed in the inlet pipe 201 and the drain pipe 202 portion Cut the reinforcement tube 400 as it is.

When the confirmation of the abnormality of the reinforcement tube 400 is completed as described above, by removing the pre-installed connection pipe 203 to allow various flows to flow through the repaired manhole to finish the work.

There is some play in the water inlet pipe 201 and the drain pipe 202 connected to the manhole 200. Therefore, the various flows and sewage flows through the play, there are a lot of cases that require additional maintenance of the manhole. In order to prevent the inflow of sewage and sewage, it is necessary to install the water extraction device 900 and the tube reinforcing tube 903 and will be described with reference to FIG.

6A and 6B are a plan view and a cross-sectional view of the water extraction device 900, and FIG. 6C is a cross-sectional view of the water supply installation 900 installed with the tube reinforcing tube.

The water jet device 900 is generally formed of a support plate 901 and the insertion tube 902 in the shape of a punched hat made of a rubber material.

The support plate 901 has a hole formed in the center thereof, and the end of the water inlet pipe 201 or the drain pipe 202 is in close contact with the manhole 200 as shown in FIG. 6C together with the insertion plate 902 which will be described later to prevent leakage of water. The inlet pipe 201 and the drain pipe 202 are installed at a portion connected to the manhole 200 to serve as a water stop plate. As shown in FIGS. 6A and 6B, the inlet pipe 201 and the drain pipe 202 are located in the center. It is a circular plate formed with a hole to be inserted.

Insertion tube 902 is a cylindrical tube protruding with an appropriate length so that it can be inserted into inlet pipe 201 or drain pipe 202 along the periphery of the support plate 901 as shown in FIGS. 6A and 6B. . Therefore, the diameters of the support plate 201 and the insertion pipe 902 are adjusted according to the sizes of the water inlet pipe 201 and the drain pipe 202 installed in the manhole 200.

Pipe reinforcing tube (903) is a lining material attached to the inner surface of the water inlet pipe 201 and the drain pipe 202 is installed in the manhole 200, as shown in FIG. After partly peeled off and installed, it is attached over the entire length of the water inlet pipe 201 or the drain pipe 202 so as to cover the water extraction device 900. By attaching the pipe reinforcing tube (903) it is possible to proceed with the repair of the water inlet pipe and drain pipe while preventing the inflow of various water and sewage with the water inlet device.

The present invention provides a reinforcement tube filled with a thermosetting resin to repair the manhole requiring repair, an expansion tube for attaching the reinforcement tube to the inner wall of the manhole at a constant inflation pressure, a pressure injection tube, a temperature sensor, a pressure discharge tube, a constant pressure and Manhole fixing device that is fixed to the manhole entrance by installing a pressurizer that can apply hot air, a heat generator that can apply hot air or heated water, and a heat control device that controls the heat generator and the heat supply device built in the press Because it can be used to repair the manhole non-excavation can reduce the work air for repairing the manhole, and can easily repair the manhole even in narrow places.

In addition, the thermosetting resin filled in the reinforcing tube can be attached to the inner wall of the manhole without pressure by the pressure applied inside the expansion tube and hot air or heated water, and the water supply device and the pipe reinforcing tube connected to the manhole can be obtained. By installing at the end of the pipe and drain pipe, it is possible to prevent the inflow of various flowing water and sewage, so no additional maintenance and management costs are required after manhole repair.

Claims (12)

On the plate having a predetermined thickness, an upper surface 11 formed by digging an upper surface, a bottom portion having a plurality of horizontal holes 12 and a plurality of vertical holes 13 passing through the outer and inner circumferential surfaces of the upper hole 11 An upper manhole fixing device (10) comprising (14); It has a diameter smaller than the diameter of the upper manhole fixing device 10, and is formed continuously to the lower hollow tube 21 and the outer peripheral surface of the lower hollow tube 21 formed vertically downward on the lower surface of the upper manhole fixing device 10 A lower manhole fixing device 20 including a protrusion 22; Manhole repair apparatus comprising a. 2. The manhole repair apparatus according to claim 1, wherein the upper and lower manhole fixing devices (10, 20) have a shape of a circle or a quadrangle. The manhole repair apparatus according to claim 1, wherein the protrusion of the lower hollow tube 21 is any one of a wedge of a triangular or square shape so that the neck of the expansion tube 400 can be fixed. Installing a connection pipe 203 via the water supply pipe 201 and the drain pipe 202 connected to the manhole 200 requiring repair; Installing a reinforcing tube (300) filled with a thermosetting resin on an inner wall of the manhole (200); Installing an expansion tube (400) matching the size and shape of the manhole in the manhole (200) in which the reinforcing tube (300) is installed; Fixing the manhole repairing device (100) of claim 1 connected to the neck of the expansion tube (400) inside the upper part of the inlet of the manhole (200); Applying temperature and pressure to the expansion tube 400 to cure the resin filled in the reinforcement tube 300 to bring the reinforcement tube 300 into close contact with the inner wall of the manhole 200; Separating the expansion tube 400 and the manhole repair apparatus 100 from the manhole 200, and then removing and finishing the connection pipe 203 installed for turning water; Manhole repair method using a manhole repair apparatus 100, comprising a. In claim 4, the step of turning water, Installing a cylindrical packer (204) inserted into the water inlet pipe 201 and the drain pipe 202 at a portion connected to the manhole 200 and having a hole formed in the center thereof; And, Inserting a connection hose 205 into the hole of the packer 204 and connecting a connection pipe 203 between the connection hoses 205; Manhole repair method using a manhole repair apparatus 100, comprising a. In claim 4, wherein the thermosetting resin filled reinforcement tube 300, Filling the thermosetting resin 307 with a predetermined amount after putting the reinforcing material having a predetermined thickness into the resin filling device 308; Making the inside of the resin impregnation apparatus 308 into a vacuum state; Rotating the vacuum resin impregnation device (308) using a drum rotating device (306); Manhole repair method using a manhole repair apparatus 100, characterized in that the production, including. In claim 4, wherein the resin filling device 308, A cylindrical drum 302 having one side open and a closed rod 301 formed at the other side; And, A lid 304 installed on an open surface of the cylindrical drum 302 and having a rotating rod 301, a vacuum valve 303, and a tightening screw 305 formed therein; Manhole repair method using a manhole repair apparatus 100, comprising a. In claim 4, after separating the expansion tube 400 and the manhole repair device 100 from the manhole 200, the overall shape on the connection portion of the manhole 200 and the inlet pipe 201 and the drain pipe 202, This hat-shaped, water-repelling apparatus 900 including a disk-shaped support plate 901 having a hole in the center and a cylindrical insertion tube 902 projecting around the hole of the circular plate 901, and Manhole repair method using the manhole repair apparatus 100, characterized in that the pipe reinforcement tube 903 is further installed on the inner surface of the water supply pipe and drain pipe 202. In claim 4, the fixing of the manhole repair apparatus 100 is inserted into the horizontal hole 12 of the manhole repair apparatus 100, the fixing is embedded in a plurality of spacers 600 installed above the inlet of the manhole 200 Manhole repair method using a manhole repair device 100, characterized in that by the device (700, fixing pin or bolt). In claim 4, the method of curing the thermosetting resin filled in the reinforcing tube 300, Opening and closing valve 31 is installed in a plurality of vertical holes 13 of the manhole repair apparatus 100 of claim 1, the pressure injection pipe 30 is connected to the pressure device 500, the temperature sensor 40, the opening and closing valve After installing the pressure discharge pipe 50, the heat generating device 60 with the heat coil 61 installed therein, the temperature sensor 40 and the heat generating device 60 are provided with a heat regulating device 800. Connecting); After applying a constant pressure by using the pressure device 500, by operating the heat generating device 60 while adjusting the temperature sensor 40 and the heat adjusting device 800 to the air in the expansion tube 400 to a predetermined temperature Raising step; Manhole repair method using a manhole repair apparatus 100, comprising a. In claim 4, the method of curing the thermosetting resin filled in the reinforcing tube 300, Opening and closing valve 31 is installed in a plurality of vertical holes 13 of the manhole repair apparatus 100 of claim 1, the pressure injection pipe 30 is connected to the pressure device 500, the temperature sensor 40, the opening and closing valve Water discharge pipe (70) to which the pressure discharge pipe (50) provided with (31), the heat generating device (60) with the heat coil (61) attached, the water pump (71), and the hose (72) with water holes formed thereon are connected; After installing the water inlet pipe (80), the step of connecting the heat control device 800 to the temperature sensor 40 and the heat generating device (60); Filling water to the expansion tube 400 to a predetermined height through the water inlet pipe 80; After applying a constant pressure using the pressure device 500, while operating the heat generating device 60 submerged in the water filled in the expansion tube 400 while adjusting the temperature sensor 40 and the heat regulating device (800) expansion Raising the water in the tube 400 to a constant temperature; Closing the lid of the water outlet pipe (70), operating the water pump (71) of the hose (72) connected to the water outlet pipe (70); Manhole repair method using a manhole repair apparatus 100, comprising a. In claim 4, the method of curing the thermosetting resin filled in the reinforcing tube 300, Pressure of the opening and closing valve 31 is installed in the plurality of vertical holes 13 of the manhole repair apparatus 100 of claim 1, the pressure supply unit 500 with a built-in heat supply device is connected, and the opening and closing valve 31 is installed. After installing the pressure discharge pipe 50 in which the injection pipe 30, the temperature sensor 40, the opening / closing valve 31 is installed, connecting the heat regulator 800 to the temperature sensor 40 and the heat supply device. ; Expanding tube 400 by applying a heat product using a heat supply device of the pressure device 500 while adjusting the temperature sensor 40 and the heat adjusting device 800 while applying a constant pressure using the pressure device 500. Raising the air to a constant temperature; Manhole repair method using a manhole repair apparatus 100, comprising a.