KR20200011234A - Non-digging Sewerage Mending Apparatus and its manufacturing method - Google Patents

Abstract

The present invention relates to a non-excavation water and sewerage overall repair apparatus and a repair method. More specifically, the non-excavation water and sewerage overall repair apparatus winds a safety rope and a tube sequentially on a rotation drum installed in an inversion tank, minimizes the volume of the safety rope wound on the rotation drum to increase the amount of winding of the tube to expand a tube inversion distance, and improves a structure of a repair system so that a steam hose which hardens the tube can be supplied from the outside of an inverter to the inside of the tube.

Description

Non-digging Sewerage Mending Apparatus and its manufacturing method

The present invention relates to a non-excavated water and sewage overall repair device and a repair method, and more particularly, to sequentially wind a safety rope and a tube on a rotating drum of a reversing tank, and to minimize the volume of the safety rope wound on the rotating drum. The present invention relates to a non-excavated water and sewage total repair device and a repairing method of improving a structure of a repair device so as to increase a winding amount to extend a tube reversal distance and to supply a steam hose for curing the tube from the outside of the inverter to the inside of the tube.

As urbanization progressed, various pipes including water and sewage pipes were buried underground, and as time went by, aging and poor pipelines gradually occurred.

As a result, leakage of water and sewage, contamination of drinking water occurs, and gas leaks have become an important issue for maintenance of aged pipes.

During the renovation, the entire non-excavated water and sewage system repairing water and sewage pipes has been developed as an alternative to the increase of social loss costs such as heavy construction costs, traffic jams, safety accidents, and environmental problems. It has been designated as the new technology and has been actively applied to the Han River sewage pipe maintenance project and sewage pipe maintenance rental type private project (BTL).

Non-excavation water and sewage overall repair method impregnates the cured resin in the tube cut according to the length of the repair pipe and the allowable length by the method, inserts the tube into the repair pipe, and then hardens the tube using steam or hot water. The process is terminated by drilling the finishing and connecting tubes.

Among the above methods, Patent Literature Publication No. 10-0433060 of the Patent Document No. 10-0433060 repairing apparatus and its method is to reverse the reinforcement tube impregnated with the adhesive resin using water pressure, and to cure the adhesive pipe to bury the buried pipe An apparatus for non-excavation repair, comprising: a rotating drum (110) for winding a reinforcement tube on a shaft (111) rotated by a separate power means; The rotating drum 110 is accommodated therein, and forms a reinforcing tube entrance 121 having a flange 122 for fixing one end of the reinforcing tube 2 to form an internal pressure 123. Hydraulic pressure reversing tank 120 having a); Pressurized water supply means (130) including a motor pump (132) for supplying water pressure into the hydraulic pressure reversing tank (120); It is characterized in that it comprises a warming means 140 for curing the adhesive resin of the reinforcing tube by supplying hot water to the entry side end of the reinforcing tube, hot water.

Referring to FIG. 5 of Patent Document 1, in order to wind the reinforcing tube inverted into the pipe in the rotating drum, the process of firstly connecting the hot water hose to the end of the reinforcing tube to move the inside of the pipe. In this case, it performs two functions of supporting the reinforcement tube and curing the reinforcement tube, and the hot water hose is continuously wound on the reinforcement tube connected to the hot water hose while being wound on the circumferential surface of the rotating drum as shown in FIG. Roll it up and store it in the hydraulic reversing tank so that it can be moved to the vehicle.

When the reinforcing tube wound in the rotating drum of Patent Document 1 is inverted about 50% into the inside of the pipe, the remaining 50% of the hot water hose wound in the rotating drum should control the reversing speed of the reinforcing tube, but the hot water hose made of rubber material When the reinforcing tube is inverted, the power of the reinforcing tube forward and the power of the hot water hose pulling back causes the hot water hose to be broken, and the hot water hose moving along the curved pipe is torn as it collides with the pipe. There is a problem that it is not possible to perform the reversal operation of the reinforcement tube, and the retraction tube winding amount is reduced by the volume of the hot water hose wound on the rotating drum, the reversal distance of the reinforcement tube is reduced.

In order to solve the problems of Patent Literature 1, Patent Literature Publication No. 10-2009-0104989 No. Excavation Field Inverter for Water and Sewage Pipe and Repair Method for Water and Sewage Pipeline Using the Same The tube winding stacker 10 including the pressurizing part 11 and the hardening part 12 capable of hardening the impregnating tube 1 while providing the pressure necessary for reversal of c) and the impregnating tube 1 are reversed. In the upper and lower sewage pipe non-excavation field reversing apparatus including an inverting portion 20 that can fix the end of the impregnating tube (1), the impregnation tube (between the tube winding loading box 10 and the inverting portion 20) 1) is provided with an auxiliary loading box 30 for loading, wherein the auxiliary loading box 30 forms a first flange 31 that is coupled to the tube winding loading box flange 13 of the tube winding loading box 10 to one side, The other side is coupled to the inverting flange 21 of the inverting portion 20 It characterized in that to form the second flange 32.

Patent Literature 2 installs an auxiliary loading box on the front side of the tube winding loading box in order to load a lot of impregnated tubes, but it is difficult to move to a vehicle due to the large size of the auxiliary loading box, and the manufacturing cost for installing the auxiliary loading is excessively high. It is possible to reverse the impregnation tube of the tube winding loading box after moving the impregnated tube stored in the auxiliary loading container to the inside of the conduit. The phenomenon of blocking the air pressure takes a long time to work, and in order to load the impregnated tube into the tube winding loading box and the auxiliary loading, there is a problem of repeating the process of separating and combining the auxiliary loading.

Republic of Korea Patent Publication No. 10-0433060 Republic of Korea Patent Publication No. 10-2009-0104989

The present invention is to solve the above-mentioned conventional problems, an object of the present invention is to wind the safety rope and the tube on the rotating drum installed inside the inverting tank to fix one end of the tube to the front of the inverter, The coiled tube minimizes the volume of the safety rope to increase the amount of winding of the tube to increase the tube reversing distance, and improves the structure of the repairing device so that the steam hose for curing the tube can be supplied from the outside of the inverter to the inside of the tube. It is to provide a total repair device for unexcavated water and sewage.

Another object of the present invention is to install the body of the hose insertion member on the upper part of the inverter, the steam hose is inserted into the connection ring of the tube inserted into the connection ring of the tube to the inside of the pipe steam hose also It is to provide a total repair device for unexcavated water and sewage that can move together.

Another object of the present invention is to control the reversing speed of the tube to the inside of the pipeline by the safety rope, the steam hose moving along the tube moves at the same speed as the tube, so that the steam hose is stretched or torn It is to provide a total repair device for unexcavated water and sewage that can be prevented.

Still another object of the present invention is to provide a total repair apparatus for unexcavated water and sewage which can shorten the curing time of the tube because the thickness of the steam hose inserted into the hose insertion member can be used in various ways.

Another object of the present invention is to install the first and second temperature sensor members of the temperature measuring device between the front and rear circumferential surface of the tube and the bottom surface of the tube to measure the temperature outside the tube without measuring the curing temperature inside the tube. In order to prevent the uncured phenomenon that the tube is lifted on the pipe wall to provide a total repair device for unexcavated water and sewage.

Still another object of the present invention is to provide a non-excavated water and sewage overall repair method that can easily handle a repair device and a steam hose, and can quickly process a reversal and curing operation of a tube to reduce a construction cost.

In order to achieve the object of the present invention as described above, the non-excavation water and sewage overall repair device according to the present invention wound the safety rope on the rotating drum installed inside the inversion tank, and installs a connection ring on the front of the safety rope, The rear of the tube is fixed to the connecting ring and wound on a rotating drum. The inverter is installed on the front side of the inverting tank, the front side of the tube is fixed upside down to be inverted into the pipeline, and a perspective window is formed on the outside of the inverter. Installing a hose insertion member on the upper part of the inverter in which the see-through window is installed, inserts a steam hose therein and moves the tube together with the tube to the inside of the conduit, wherein the steam hose is installed outside of the inverter and the tube in the rotating drum of the inverting tank. To wind up as much as possible, install a connecting ring on the front of the steam hose, and the connecting ring is connected to the tube Inserting the tube reversing means moving along with the steam hose along the tube; And a tube curing means for curing the tube by discharging steam through a plurality of steam outlets formed on the circumferential surface of the steam hose when the tube is inverted and supplied with steam from a boiler connected to the steam hose. do.

According to the present invention as described above, the present invention has the effect of winding the tube as much as possible using a thin rope to minimize the volume of the safety rope wound on the rotating drum of the reversing tank, and the reversing tank The effect is that many tubes can be loaded to extend the tube reversal distance.

The present invention has the effect that the inverting tube to the inside of the pipeline can adjust the reversal speed by the safety rope.

The present invention has an effect that can shorten the tube curing time by improving the structure of the repair device to supply the steam hose for curing the tube from the outside of the inverter to the inside of the tube.

The present invention is to install the body of the hose insertion member in the upper part of the inverter, and insert the connection ring of the steam hose inserted into the interior of the tube in the connecting ring installed on the rear of the tube when the tube is inverted into the inside of the pipeline also the steam hose By moving together, the steam hose is prevented from sagging or tearing.

According to the present invention, since the thickness of the steam hose inserted into the hose insertion member can be used in various ways, the curing time of the tube can be shortened.

The present invention is easy to handle the maintenance device and the steam hose, the effect of reducing the construction cost by quickly processing the reversing and curing of the tube, the temperature between the front and rear circumferential surface of the tube and the bottom surface of the pipe line If the temperature deviation occurs outside the tube by installing the first and second temperature sensor members of the measuring device, there is an effect that the tube can be hardened to the pipe wall by supplying steam.

1 is a block diagram showing a state of reversing the tube wound in the present invention inverted tank into the interior of the pipeline.
Figure 2 is a block diagram showing a state in which the connection ring of the steam hose is inserted into the connection ring installed in the tube of the present invention to reverse.
Figure 3 is a schematic view showing a state of curing the tube by installing the temperature measuring device in the tube of the present invention.

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

1 to 3, the present invention winds the safety rope 14 and the tube 16 in the rotating drum 11 of the inverting tank 10 and inverts the inside of the conduit. A tube reversing means (A) in which the connecting ring 28 of the steam hose 27 is installed in the connecting ring 15 installed at the rear side so that the tube 16 and the steam hose 27 move together in the conduit; It is largely composed of a tube curing means (B) for curing the tube 16 by using steam supplied from the steam hose 27 into the tube 16.

The tube reversing means (A), the safety rope 14 is wound around the rotating drum 11 of the inversion tank 10, the safety rope 14 is a tube 16 to be described later is moved to the inside of the pipeline. It is connected to the rear of the tube 16 to adjust the reversal speed of the tube 16 in the process, and using a thin rope to minimize the volume of the safety rope 14 wound on the rotary drum 11 When the volume of the safety rope 14 is minimized, the amount of winding of the tube 16 increases, so that a large amount of the tube 16 is loaded in the inversion tank 10 to extend the tube 16 inversion distance. There is this.

The rear of the safety rope 14 is provided with a connecting ring 15 on the front while maintaining a fixed state on the rotary drum 11, the fixing ring 15 is fixed to the rear of the tube 16 of the conduit The safety rope 14 can be moved together along the tube 16 which is inverted to the inside, and the front surface of the tube 16 is fixed upside down to the inverter 12 installed in the inversion tank 10, and the inverter 12 is coupled to the front of the reversing tank 10 by using a bolt so as to be separated and coupled, forming a see-through window 13 on the outside of the inverter 12, the see-through window 13 In order to check that the connecting ring 15 of the tube 16 can be stopped at the position where the see-through window 15 is located in the process of reversing the tube 16, and inserting a hose installed on the upper part of the inverter 12. The member 20 maintains a fixed state where the lower portion of the body 21 is inserted into the inverter 12 and the inside of the body 21 is fixed. Is hollow so that the steam hose 27 is inserted, install a fixing projection 22 on the inner bottom surface of the body 21, insert a soft packing 23 on the upper portion of the fixing projection 22, Screw the airtight member 24 to the inside of the body 21, the airtight member 24 protrudes the rotary projection 26 in the lower portion of the handle 25, the inside of the rotary projection 26 Insert the steam hose 27 to move along the tube 16, and protrudes the lower portion of the rotary projection 26 in a semicircular shape to press the packing 23, the lower portion of the packing 23 is fixed projection 22 In close contact with the circumferential surface of the steam hose 27 to prevent the steam inside the tube from leaking to the outside during the tube hardening operation, and the steam hose 27 can move along the tube 16. The connecting ring 28 is installed on the front surface of the steam hose 27, and the side of the connecting ring 28 is empty. A holding tube to complete the reverse operation and is connected to ring 15 inserted when the supply hose 27 is equal to the reverse speed of the tube 16 fixed to the movement into the interior of the tube 16 of the tube 16.

Tube curing means (B) for maintaining the tube 16 in close contact with the circumferential surface of the pipeline, when the tube reversal operation is completed by operating the boiler 29 connected to the steam hose 27 steam hose (27) When steam is supplied to the steam, the steam is discharged through a plurality of steam outlets 27a formed on the circumferential surface of the steam hose 27 to perform tube hardening, and the steam outlet 27a is a circumference of the steam hose 27. Forming a plurality in succession on the surface to quickly perform the tube curing operation, the temperature measuring device 30 to prevent the phenomenon that the tube 16 is uncured during the tube curing operation process tube (16) It can also be installed and used outside.

The temperature measuring device 30 is connected to the first and second temperature sensor members 31 and 32, and the tube 16 inverted the first and second temperature sensor members 31 and 32 into the conduit. It is installed between the front and rear circumferential surface of the bottom and the bottom surface of the pipe, the first and second temperature sensor member 31, 32 is the temperature measuring device 30 by measuring the outside temperature of the front and rear of the tube 16 On the display, the operator proceeds to cure the tube while checking the temperature displayed on the temperature measuring device 30. Even if the internal temperature of the tube 16 is maintained at 100 ° C., the tube may be changed according to the external condition and environment of the pipe. In order to solve the problem that the external temperature of the tube 16 drops and the tube 16 does not remain firmly adhered to the pipe wall, the external temperature of the tube 16 is measured. Steam is supplied to the inside of the 16 to prevent the tube 16 from being uncured Do it.

The non-excavated water and sewage whole repair method according to the present invention configured as described above is constructed as follows.

In the tube reversal operation step of moving the tube into the inside of the pipeline, the reversing tank 10 and the reversal 12 are moved in the direction in which the manhole is located, and the inverter 12 inverts the front surface of the tube 16. When the connecting ring 15 installed at the end of the tube 16 is confirmed through the see-through window 13 in the process of moving the tube 16 to the inside of the conduit, the tube 16 is fixed. In the state of stopping the reversal of the () is inserted into the connecting ring (28) of the steam hose 27 installed in the hose insertion member 20 into the connecting ring (15), if the tube 16 is reversed again The steam hose 27 moves together along the tube 16, and the safety rope 14 installed in the connecting ring 15 of the tube 16 also moves along the tube 16, but the safety rope 14 When winding the rotary drum 11 of the reversing tank 10 to minimize the volume to wind the tube 16 as much as possible The safety rope 14 is characterized in that the safety rope 14 fixed to the rotating drum 11 while the tube 16 is inverted into the interior of the conduit pulls the rear surface of the tube 16 while the reverse speed In the conventional method, the steam hose is connected to the rear of the tube 16, and the steam hose made of rubber material in the process of moving together is stretched or torn in the process of adjusting the reversal speed of the tube 16. There is a feature to eliminate the, the steam hose 27 is also supplied from the outside so that the tube 16 can be loaded as much as possible inside the inversion tank 10, the tube 16 and the steam hose 27 Move to the end of the conduit to complete the reversal of the tube (16).

In the steam hose installation step of installing the steam hose 27 in the inside of the tube, when the tube reversal operation is completed, the handle 25 of the hose insertion member 20 is rotated so that the rotation protrusion 26 is the body 21. While moving to the inside of the packing 23 is pressed in close contact with the circumferential surface of the steam hose 27, the steam hose 27 is connected to the boiler 29 to supply steam to the steam hose 27, the On the circumferential surface of the steam hose 27, a plurality of steam outlets 27a are continuously formed to discharge steam through the steam outlet 27a.

In the tube curing temperature measurement and tube curing step, the first and second temperature sensor members 31 and 32 are installed between the front and rear circumferential surfaces of the tube 16 and the bottom surface of the conduit. 2 temperature sensor members 31 and 32 are connected to the temperature measuring device 30 to measure the temperature outside the tube 16 by the tube curing means B, and when steam is supplied to the steam hose 27, Steam is discharged to the steam outlet 27a and the tube is hardened. When the tube 16 is hardened, the external temperature of the front and rear surfaces of the tube 16 does not maintain 100 ° C. By supplying steam into the inside to keep the temperature outside the tube 16 uniformly, the tube 16 is prevented from being lifted from the wall surface of the tube, and at the same time, the tube curing operation time can be shortened.

The non-excavated water and sewage total repair device and repair method according to the present invention described above are not limited to the above-described embodiments, and are generally used in the field of the present invention without departing from the gist of the present invention as claimed in the following claims. Anyone with knowledge has the technical spirit to the extent that various changes can be made.

10: reverse tank 11: rotary drum
12: Inverter 13: Perspective Window
14: safety rope 15: connecting ring
16: tube 20: hose insertion member
21: body 22: fixing projection
23: packing 24: airtight member
25: handle 26: turning projection
27: steam hose 27a: steam outlet
28: link 29: boiler
30: temperature measuring device 31: the first temperature sensor member
32: second temperature sensor member A: tube reversing means
B: tube curing means

Claims (10)

The safety rope 14 is wound around the rotating drum 11 installed inside the inversion tank 10, a connecting ring 15 is installed on the front surface of the safety rope 14, and a tube is connected to the connecting ring 15. Fixing the rear of the (16) and wound on the rotating drum (11), install the inverter (12) on the front of the inverting tank (10) by inverting the front of the tube (16) to reverse the inside of the pipeline, Forming a see-through window 13 on the outside of the inverter 12, the hose insertion member 20 is installed on the top of the inverter 12 in which the see-through window 13 is located to the steam hose 27 therein Inserted and moved into the conduit with the tube 16,
The steam hose 27 is installed outside the inverter 12 so that the tube 16 can be wound as much as possible on the rotary drum 11 of the inverting tank 10, and the front surface of the steam hose 27 is provided. A connecting ring 28 is installed in the connecting ring 28, and the connecting ring 28 is inserted into a connecting ring 15 installed in the tube 16. The tube inverting means in which the steam hose 27 moves along the tube 16 together. (A); And
When the inverting operation of the tube 16 is completed, when steam is supplied from the boiler 29 connected to the steam hose 27, the steam is discharged through the plurality of steam outlets 27a formed on the circumferential surface of the steam hose 27. And a tube hardening means (B) for curing the tube (16). According to claim 1, wherein the safety rope 14 wound on the rotary drum 11 is installed by a narrow rope to minimize the volume of the winding amount of the tube 16 wound on the rotary drum 11 to enlarge The whole non-excavation water and sewage repair device, characterized in that it can be. According to claim 1, The hose insertion member 20 is installed by inserting the lower portion of the body 21 in the upper portion of the inverter 12, the inside of the body 21 so that the steam hose 27 is inserted It is hollow, the fixing protrusion 22 is installed on the inner bottom surface of the body 21, the soft packing 23 is inserted into the upper portion of the fixing protrusion 22, the airtight inside the body 21 Screw the member 24, the airtight member 24 protrudes the rotary projection 26 in the lower portion of the handle 25, the steam hose 27 is inserted into the inner tube of the rotary projection 26 tube To move along the (16), and protrudes the lower portion of the rotary projection 26 in a semi-circular shape to press the packing 23, the lower portion of the packing 23 is in close contact with the fixing projection 22 to expand and expand the steam hose ( 27) Non-excavated water and sewage that closely adheres to the circumferential surface of the tube to block the leakage of steam inside the tube to the outside during tube hardening. Full maintenance device. According to claim 1, The front of the steam hose 27 is provided with a connecting ring 28, the side of the connecting ring 28 is maintained in the empty state inserted into the connecting ring 15 of the tube 16 And a boiler 29 is formed on a rear surface of the steam hose 27 to supply steam to the inside of the steam hose 27, and a plurality of steam outlets 27a are provided on a circumferential surface of the steam hose 27. Completely repaired non-excavated water and sewage system, characterized in that it is formed continuously so that steam can be discharged. The non-excavated water and sewage system of claim 1, wherein the tube curing means (B) is provided with a temperature measuring device (30) to measure the external temperature of the tube (16) during the curing operation of the tube (16). Full repair device. The method of claim 5, wherein the temperature measuring device 30 is connected to the first and second temperature sensor members 31 and 32, and the first and second temperature sensor members 31 and 32 into the conduit. It is installed between the front and rear circumferential surface of the inverted tube 16 and the bottom surface of the conduit, and the first and second temperature sensor members 31 and 32 measure the outside temperature of the front and rear surfaces of the tube 16. Displayed on the temperature measuring device 30, the operator checks the temperature displayed on the temperature measuring device 30, characterized in that the tube hardening work proceeds to the entire non-excavation water and sewage. The inverting tank 10 and the inverter 12 are moved in the direction in which the manhole is located, the front of the tube 16 is fixed to the inverter 12 by inverting and inverted into the inside of the conduit, and the tube 16 is If the connecting ring 15 installed at the rear of the tube 16 is checked through the see-through window 13 in the course of moving into the conduit, the hose insertion member 20 inside the tube 16 is stopped. Insert the connecting ring 28 of the steam hose 27 installed in the connecting ring 15, and if the tube 16 is inverted again, the steam hose 27 moves together along the tube 16, The safety rope 14 installed in the connecting ring 15 of the tube 16 also moves along the tube 16, wherein the safety rope 14 is wound up on the rotating drum 11 of the reversing tank 10. By minimizing so that the tube 16 can be wound as much as possible, the steam hose 27 is also supplied from the outside to the inside of the reversal tank 10 The tube inversion step of operation tube 16 and is to be loaded as much as possible, go to the end of the tube 16 and the supply hose (27) conduits to complete the reverse operation of the tube 16;
When the tube reversal operation is completed, the handle 25 of the hose insertion member 20 is rotated so that the rotary protrusion 26 moves to the inside of the body 21 to press the packing 23 to circumscribe the steam hose 27. In close contact with the surface, the steam hose 27 is connected to the boiler 29 to supply steam to the steam hose 27, a plurality of steam outlets (27a) continuously in the peripheral surface of the steam hose 27 A steam hose installation step of forming and discharging steam through the steam discharge port 27a; And
The first and second temperature sensor members 31 and 32 are installed between the front and rear circumferential surfaces of the tube 16 and the bottom surface of the conduit, and the first and second temperature sensor members 31 and 32 are It is connected to the temperature measuring device 30 to measure the temperature outside the tube 16 by the tube curing means (B), when steam is supplied to the steam hose 27, the steam is discharged to the steam outlet (27a) tube When the curing process of the tube 16, when the external temperature of the tube 16 front and rear does not maintain 100 ℃ and the deviation of the external temperature occurs during the curing operation of the tube 16, by supplying steam into the tube 16 tube (16) tube curing temperature measurement and tube curing step of maintaining the outside temperature uniformly to prevent the tube 16 from being uncured;
Non-excavated water and sewage overall repair method comprising a. 8. The safety rope (14) wound on the rotating drum (11) is provided with a narrow rope so as to minimize the volume to enlarge the amount of winding of the tube (16) wound on the rotating drum (11). Non-excavation water and sewage whole repair method characterized in that it was possible. According to claim 7, The hose insertion member 20 is installed by inserting the lower portion of the body 21 in the upper portion of the inverter 12, the inside of the body 21 so that the steam hose 27 is inserted It is hollow, the fixing protrusion 22 is installed on the inner bottom surface of the body 21, the soft packing 23 is inserted into the upper portion of the fixing protrusion 22, the airtight inside the body 21 Screw the member 24, the airtight member 24 protrudes the rotary projection 26 in the lower portion of the handle 25, the steam hose 27 is inserted into the inner tube of the rotary projection 26 tube To move along the (16), and protrudes the lower portion of the rotary projection 26 in a semi-circular shape to press the packing 23, the lower portion of the packing 23 is in close contact with the fixing projection 22 to expand and expand the steam hose ( 27) The entire unexcavated water and sewage system, which is in close contact with the circumferential surface of the pipe, prevents internal steam from leaking to the outside during tube hardening. Repair method. The method according to claim 7, wherein the front of the steam hose 27 is provided with a connecting ring 28, the side of the connecting ring 28 is kept empty and inserted into the connecting ring 15 of the tube 16 And a boiler 29 is formed on a rear surface of the steam hose 27 to supply steam to the inside of the steam hose 27, and a plurality of steam outlets 27a are provided on a circumferential surface of the steam hose 27. Non-excavated water and sewage overall repair method, characterized in that it is formed continuously so that steam can be discharged.

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