KR101607525B1

KR101607525B1 - Method for repairing partially broken and cracked underground pipe with water blocking and impurities cleaning process

Info

Publication number: KR101607525B1
Application number: KR1020150121501A
Authority: KR
Inventors: 이병록
Original assignee: (주)국제피스코
Priority date: 2015-08-28
Filing date: 2015-08-28
Publication date: 2016-04-11

Abstract

The present invention relates to a BCP construction method for repairing a cracked and broken part of an underground pipe. A lining tube is attached to the inner surface of an underground pipe while an upstream packer blocks upstream water before a thermosetting process. The blocked upstream or downstream water is sucked and discharged by a bypass unit, washing air is sprayed to a maintenance section and the section is finally washed, and then the lining tube is attached to the inner surface of the underground pipe and is thermally set, and therefore, water and foreign substances are not interposed between the outer surface of the lining tube and the inner surface of the underground pipe, so the quality of construction is improved, a maintenance state is maintained for a long period of time. Moreover, since a downstream packer blocks downstream water, the upstream or downstream water is prevented from breaking into the maintenance section due to a back flow, and therefore, the quality of construction is improved.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method for repairing cracks in an underground pipe,

[0001] The present invention relates to a method of repairing cracks in a submerged pipe, and more particularly, to a method of repairing cracks in an upper and a lower side of a submerged pipe, A packer for adhesion and thermosetting which is installed between the upstream side and the downstream side difference accommodating packers to closely adhere the lining tube to the inner circumferential surface of the underground tube and to thermally cure, Water and foreign matter are interposed between the inner circumferential surface of the underground pipe and the outer circumferential surface of the lining tube by repairing partial burrs and cracks in the underground pipe by using the bypass means to the downstream side and the cleaning means for finally cleaning the repair section This is because the construction quality is improved and maintenance status is maintained for a long time. It is about the law.

Generally, in order to repair an old underground buried pipe such as a water pipe or a sewage pipe, a method of replacing the pipe itself after excavating the road has been widely used.

However, the repair method of the underground buried pipe has various problems as follows.

There are economic problems such as transportation problems due to traffic control, environmental problems such as soil or groundwater pollution, increase in construction cost due to excavation, pipe replacement, backfilling, road pavement, etc., There is a problem due to re-implementation of repair work.

In addition, there are many problems such as deterioration of the residents' environment due to noise, dust, and odor, concern about subsidence due to excavation, and risk of damage to other underground structures such as gas pipes around them.

Therefore, in recent years, the technique of repairing the underground pipe has been developed without excavating the ground.

As a prior art related to the non-drilling repairing technology of a conventional underground pipe, it is disclosed in Korean Registered Patent No. 10-0433060 (Registered on Apr. 17, 2004) "Repairing Units and Method of Unscrewed Pipes", No. 10-0555026 ) "Unreinforced pipe repair and maintenance method", No. 10-0615070 (Registered on August 16, 2006) "Unreinforced pipe repair method and apparatus for water supply and drainage pipelines", No. 10-0921481 (Registered on October 6, 2009) Repairing method and equipment for un-drilling piping of water supply and drainage piping ".

The prior art covers a lining tube made up of a polyester felt layer as an outer layer which is in close contact with an inner circumferential surface of an obsolete underground buried pipe and a polyester film layer as an inner layer which forms an inner circumferential surface after repairing, .

These prior art techniques are suitable for repairing the entire underground pipe in the section between the two manholes.

On the other hand, underground buried pipes are damaged or cracked at the same time, rather than being damaged simultaneously or cracked simultaneously over the entire length of the tube, and the cracks and cracks gradually spread to other parts. As a result, So as to prevent breakage and cracks from spreading to the entire underground pipe.

As a partial repair technique of the underground buried pipe, Korean Registered Patent No. 10-0639268 (registered on October 20, 2006), "Partially Repairing Equipment and Construction Method for Buried Water and Sewage Installations", No. 10-0835870 (Registered on June 18, 2008) Repair method of non-digging sewage pipe using submerged fiber sheet ", No. 10-1174381 (registered Aug., 2012.)" Unscraped sewage pipe repair method using underwater hardening type epoxy resin paint and refraction expanding repair device " .

However, since the above-mentioned prior art is carried out in a state in which water or sewage flows through an underground pipe at the time of construction, even if the underground pipe is cleaned beforehand, a constant or sewage may be generated between the outer circumferential surface of the repairing sheet (lining tube) and the inner circumferential surface of the underground pipe Since the foreign matter (pollutant) is interposed, the quality of the construction is inevitably lowered.

In addition, the foreign matter interposed between the inner circumferential surface of the underground pipe and the outer circumferential surface of the repairing sheet (lining tube) causes corrosion, breakage and cracking of the underground pipe, thereby requiring repair work in a short period of time .

Also, as a conventional prior art, a Korean Registered Utility Model No. 20-0465270 (registered on March 23, 2013) "Tubular Membrane Packer" discloses a technology relating to a packer capable of blocking constants and sewage at the time of construction of the prior art .

However, the prior art packer has tow wires and air hoses connected to both sides thereof. These tow wires and the air hose are used to install a repair sheet (lining tube) in the repair work by the above- There is a problem that it can not be practically applied because it interferes with it.

Therefore, it does not interfere with the installation of the repair sheet in the underground pipe and improves the quality of the construction by preventing water and foreign matter from intervening between the outer circumferential surface of the repair sheet and the inner circumferential surface of the underground pipe, The development of technologies that are capable of

Korea Registered Patent No. 10-0639268 (Registered on October 20, 2006) "Partial repairing equipment and construction method for buried water and sewage pipe" Korean Registered Patent No. 10-0835870 (registered with Jun. 18, 2008) "Non-digging type tube repairing method using a bazaar fiber sheet" Korean Registered Patent No. 10-1174381 (Registered on Aug., 2012.) "Partial Repair Method for Un-Excavated Sewer Tube Using Underwater Curing Type Epoxy Resin Coating and Refractive Expansion Repair Device" Korea Registered Utility Model No. 20-0465270 (Registered on March 2, 2013) "Tubular Membrane Packer"

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an air conditioner and an air conditioner, A bypass pipe and a bypass pump for bypassing the underground pipe and a pair of front and rear car-receiving packers, and a lining tube closely attached to the inner circumferential surface of the underground pipe, It is possible to improve the quality of construction because water and foreign matter do not intervene between the inner circumferential surface of the underground pipe and the outer circumferential surface of the lining tube and to prevent the partial damage and crack repair of the underground pipe, It is intended to provide the construction method.

In order to accomplish the above object, the present invention provides a method of repairing partial damage and cracks in a buried underground pipe by lining with a lining member in the form of a sheet or tube, A traveling cart having an attachment mount; A packer mounting frame mounted on the attachment mount; A downstream side car accommodating packer to which one end is coupled to the packer mounting frame; An upstream-side car acceptance packer which is spaced upstream from the downstream car acceptance packer; A packing and a thermosetting packer which are coupled between the downstream side car acceptance packer and the upstream side car acceptance packer; A bypass means having a suction pipe disposed in front of the upstream-side difference accommodating packer; And a cleaning means having an air injection tube for cleaning disposed between the upstream side difference accommodating packer and the contact and heat curing packers; A preparation step of preparing a repairing equipment equipped with the maintenance equipment; A repairing equipment input step of putting the repairing equipment into a repair section in the underground pipe through a work area; A secondary process for receiving the upstream side of the maintenance equipment by inflating a pressurized fluid into the upstream-side difference accommodating packer to be inflated while being in close contact with the inner circumferential surface of the underground pipe; A sucking step of sucking a constant or sewage received by the upstream side difference accepting packer by a bypass means and discharging it to the downstream side of the maintenance equipment; Wherein the cleaning means supplies cleaning air to the cleaning air spray tube of the cleaning means to spray the cleaning air into the space between the upstream side car accommodating packer and the heat-curing packer to finally clean the maintenance section fair; Adhering a lining member to the inner circumferential surface of the underground pipe by inflating and expanding a pressurizing and thermosetting fluid in the contact and heat-curing packer, and thermally curing the lining member; The pressurized fluid injected into the upstream-side discerning packer is discharged after completion of thermal curing of the lining member, and the pressurized and thermosetting fluid injected into the packer for close contact and thermosetting is discharged, And withdrawing the repairing equipment for causing the heat-shrinkable packer to shrink, then traveling the running car to withdraw the repairing equipment from the underground pipe; The present invention also provides a method of repairing cracks in an underground buried pipe.

According to the BCF method for partial breakage and crack repair of the underground pipe of the present invention, the lining tube is brought into close contact with the inner circumferential surface of the underground pipe, and at the same time, And the lining tube is brought into close contact with the inner circumferential surface of the underground pipe, and then the lining tube is brought into close contact with the inner circumferential surface of the underground pipe, By thermosetting, water and foreign matter do not intervene between the inner circumferential surface of the underground pipe and the outer circumferential surface of the lining tube, so that the quality of construction is improved and the maintenance state can be maintained for a long period of time.

In addition, according to the BC method for partial breakage and crack repair of the underground pipe of the present invention, the downstream side receives the downstream side by the downstream side receiving packer, thereby preventing the water or sewage from flowing back into the repair section, .

FIGS. 1 to 13 show a preferred embodiment of the BC method for partial breakage and crack repair of underground buried pipes according to the present invention,
1 is a perspective view of a packer used in the present invention,
FIG. 2 is a partial cutaway exploded perspective view of a packer used in the present invention, FIG.
3 is an exploded perspective view of the downstream-side car-
4 is an exploded perspective view of the upstream-side difference-accepting packer,
Fig. 5 is an exploded perspective view of the packing for adhesion and heat curing,
6 to 12 are process drawings of the BC method for partial breakage and crack repair of underground buried pipes according to the present invention,
6 is a perspective view and a cross-sectional view showing a state in which a lining member is attached to a packer for close contact and heat-
7 is a cross-sectional view showing a process of putting repairing equipment, which is combined with a downstream-side car- rying packer, an upstream car-receiving packer, a close-contact and thermosetting packer, ,
8 is a cross-sectional view showing a step of inflating the upstream-side difference accommodating packer to follow the upstream side,
9 is a cross-sectional view showing a step of sucking the upstream-side constant water or sewage to be discharged to the downstream side,
10 is a sectional view showing a process of washing the inner circumferential surface of the underground pipe by the cleaning means,
11 is a cross-sectional view showing a process of expanding the packing for hot-sealing and heat-hardening to adhere the lining member to the inner circumferential surface of the underground pipe,
12 is a cross-sectional view showing a process of withdrawing repair equipment from an underground pipe,
FIG. 13 is a cross-sectional view illustrating a heat curing process according to another embodiment of the BC method for partial breakage and crack repair of underground buried pipes according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a submerged pipe according to an embodiment of the present invention; FIG.

[Definition of Terms]

The BCP (Water Blocking and Impurities Cleaning Process) method for partial breakage and crack repair of underground buried pipes according to the present invention is characterized in that the process of taking the upstream side by the upstream side accommodating packer and the downstream side accommodating packer Is a process using a process of finally cleaning an underground pipe in a side of a pipe.

The BCF method for partial breakage and crack repair of the underground pipe according to the present embodiment is characterized in that partial burrs and cracks in the underground pipe (10) between the upstream work (not shown) and the downstream work And the lining member 20 in the form of a sheet or tube.

The lining member 20 is formed of a felt layer 21 and a film layer 22. The felt layer 21 and the film layer 22 are formed of thermosetting synthetic resin and the film layer 22 is formed A thermosetting synthetic resin impregnated in the felt layer 21 may be used.

The upstream side work port (not shown) and the downstream side work port (not shown) include a work hole provided for maintenance and management of a manhole or an underground buried pipe.

The BCF method for partial breakage and crack repair of the underground pipe according to the present embodiment includes a bogie main body 110 which can be driven in the underground pipe 10 and a bogie car which is equipped with an attachment mount 120 100); A packer mounting frame 200 mounted on the attachment mount 120; A downstream-side car-receiving packer 300 one end of which is coupled to the packer-mounting frame 200; An upstream side car acceptance packer 400 which is spaced upstream from the downstream car acceptance packer 300; A packing and thermosetting packer (500) coupled between the downstream side car acceptance packer (300) and the upstream side car acceptance packer (400); A bypass means (700) having a suction pipe (710) disposed in front of the upstream side difference accommodating packer (400); And a cleaning means (800) having an air spraying pipe (810) for cleaning disposed between the upstream side difference receiving container (400) and the close and thermal curing packer (500); . &Lt; / RTI >

The traveling carriage 100 uses a traveling carriage configured to be able to travel in a conventional underground pipe 10.

The bogie body 110 includes a traveling motor (not shown) driven by remote control on the ground and a plurality of wheels 111 driven to rotate by a traveling motor.

The bogie body 110 may be formed in a box shape as shown in the drawing, but may also be constructed of a steel structure by an angle, a channel, a square pipe, or the like.

Here, the maintenance equipment including the downstream side car accommodating packer 300, the upstream car accommodating packer 400, the close and heat-curing packer 500, the bypass unit 700, When the repairing equipment and the lining member 20 can not be moved by the traveling motor of the traveling bogie 100 because the total weight of the lining member 20 wound or wrapped on the bogie packer 500 is heavy, The pulling hooks 112 and 113 are attached to the reinforcing plate 600 (to be described later) which is in close contact with the rear end of the upstream side difference receiving container 400 and the upstream end of the upstream side difference receiving container 400, To the traction rope 114 wound on a winding drum (not shown) provided on a ground working vehicle (not shown), so that the maintenance equipment and the lining member 20 can be moved.

The attachment mounting bracket 120 is attached to a traveling carriage used in a repair method of a conventional underground pipe, and attaches attachments such as a cutting device, a washing water injection device, and a sediment removing device necessary for maintenance of the underground pipe 300 And can be detachably attached.

The attachment mounting bracket 120 is configured to be able to move up and down the packer mounting frame 200 coupled to the front end of the attachment mounting bracket 120 by a pair of parallelogram link mechanisms installed on the bogie body 110 .

The attachment mount 120 includes a fixed link plate 121 coupled to a front end surface of the bogie main body 110 and a pair of left and right upper links 122 A lower link 123 and a lift link plate 124 hingedly connected to the ends of the upper link 122 and the lower link 123. [

Since the attachment mounting bracket 120 is formed of a parallelogram link mechanism, the lifting link plate 124 can vertically move up and down. Therefore, the attachment mounting frame 200, the downstream side vehicle-carrying packer 300 ), The packing for hot and hardening 500, the upstream side difference receiving packer 400, the bypass means 700 and the cleaning means 800 can be elevated while maintaining the horizontal position.

With this operation, the central axis of the downstream side car accommodating packer 300, the upstream car accommodating packer 400, and the close and heat-curing packer 500 can be aligned with the center axis of the underground pipe 10.

The packer mounting frame 200 includes a mounting plate 210 detachably coupled to the lifting link plate 124 of the attachment mounting base 120 by bolts 211 and a nut 212, And a packer mounting plate 230 coupled to a front end of the connecting piece 220. The packer mounting plate 230 is fixed to the front surface of the connecting piece 220 and extends forward.

The mounting plate 210, the connecting piece 220 and the packer mounting plate 230 may be integrally formed by welding.

The downstream-side car-carrying packer 300 includes an inflatable cylindrical portion 310 and a pair of inflatable front and rear flange portions 320 air-tightly coupled to both ends of the cylindrical portion 310.

The upstream side difference accommodating packer 400 includes an inflatable cylindrical portion 410 and a pair of inflatable front and rear flange portions 420 airtightly coupled to both ends of the cylindrical portion 410.

The packing and thermosetting packer 500 includes an inflatable cylindrical portion 510 and a pair of inflatable front and rear flange portions 520 that are airtightly coupled to both ends of the cylindrical portion 510.

The cylindrical portion 510 of the packer 500 for contact and heat-hardening is formed to be longer than the length of a repair section to be repaired, so that the lining member 20 can be wound around the outer circumferential surface thereof. That is, when the lining member 20 is prepared in the form of a sheet, it is wound around the cylindrical portion 510, and covered with the cylindrical portion 510 when prepared in the form of a tube.

The cylindrical portions 310, 410 and 510 are formed of a rubber material having excellent elasticity and restoring force. The flange portions 320, 420 and 520 are respectively formed of circular steel plates 321, 421 and 521, 422 and 522 which are covered with the cylindrical portions 310, 410 and 510 and integrally formed of the same material as the cylindrical portions 310, 410 and 510.

The upstream side difference accommodating packer 100 and the downstream side difference accommodating packer 200 and the adhesive and thermosetting packer 300 penetrate through the flange portions 120, 220 and 320 and have a plurality of joints And is coupled by a plurality of coupling nuts (N) threadably coupled to both ends of the barb (500) and the barb (B).

To this end, the flange portions 320, 420, 520 are formed with coupling threaded through holes 323, 423, 523 through which the coupling thread B passes, and the circular steel plates 321, 421, And spaced apart by sleeves 324, 424, and 524 at regular intervals.

Both ends of the spacer sleeves 324, 424 and 524 and the circular steel plates 321, 421 and 521 are integrally formed by welding.

424 and 524 and the circular steel plates 321, 421 and 521 (see FIG. 4) are manufactured when the downstream side car accommodating packer 300, the upstream side car accommodating packer 400, And the cover portions 322, 422, and 522 may be inserted in the process of molding the cylindrical portions 310, 410, and 510 and the cover portions 322, 422, and 522 with a rubber material.

The coupling threaded bar B passes through the coupling and threaded through holes 323, 423 and 523 formed in the flange portions 320 and 420 and the spacer sleeves 324 and 424 and 524, B and the nuts N on both sides are fastened to the downstream side flange of the downstream side differential accommodating packer 300 and the upstream side flange of the upstream side differential accommodating packer 400 The downstream side car acceptance packer 300 and the upstream side car acceptance packer 400 and the adhesion and thermal curing packer 500 can be combined.

At this time, in order to provide a more rigid connection, a coupling or boss penetrating hole 231 formed in the packer mounting plate 230 and a coupling or swash plate formed in the reinforcing coupling plate 600 which is in close contact with the upstream side end portion of the upstream- And the nuts N on both sides are fastened to the packer mounting plate 230 and the reinforcing plate 600 by fastening the nut N to the threaded portion formed at both ends of the fastening bar B The downstream side difference acceptance packer 300 and the upstream side difference acceptance packer 400 and the adhesion and thermal curing packer 500 can be combined.

The joint thread holes 323, 423 and 523 are formed on the circular steel plates 321, 421 and 521 and the covering portions 322, 422 and 522, respectively.

The upstream-side difference-receiving packer 400 and the thermal-curing packer 500 are spaced apart from each other in the front-rear direction with the space for cleaning S1 interposed therebetween. The downstream- (500) are spaced apart in the front-rear direction with a space (S2) therebetween.

The spacer sleeve SS1 is inserted between the downstream side car accommodating packer 300 and the close and thermal curing packer 500 to form and maintain the cleaning space S1, The spacer sleeve SS2 is inserted between the upstream side car accommodating packers 400 so that the engaging and disengaging rod B passes through the spacer sleeves SS1 and SS2.

411 and 511 are formed between both ends of the cylindrical portions 310 and 410 and the covering portions 322 and 422 and 522 so that when the pressurized fluid is injected into the cylindrical portions 310, It is preferable that the expansion of the gasket is smoothly performed.

The pressurized fluid injection pipes 330 and 430 for injecting pressurized fluid are inserted into the downstream side car accommodating packer 300 and the upstream side car accommodating packer 400 respectively, And a pressurized and thermosetting fluid injection pipe 530 for injecting the thermosetting fluid are inserted.

The pressurized fluid injection pipe 330 is inserted into the through hole 232 formed in the packer mounting plate 230 and the downstream flange portion of the pair of upstream and downstream flange portions 320 of the downstream- Is inserted into the downstream-side car-receiving packer (300) through the formed pressurized fluid injection tube insertion hole (331).

The pressurized fluid injection pipe 430 is provided with a through hole 233 formed in the packer mounting plate 230 and a pair of flange portions 320 on the upstream and downstream sides of the downstream side accommodating packer 300, Passes through the through hole 432 and the pressurized fluid injection tube passage hole 433 formed in the pair of flange portions 520 on the upstream and downstream sides of the tightening and thermal curing packer 500, Is inserted into the upstream side difference accommodating packer (400) through the pressurized fluid injection tube insertion hole (431) formed in the downstream side flange portion of the pair of flange portions (420).

The pressurized and thermosetting fluid injection pipe 530 is formed by a through hole 234 formed in the packer mounting plate 230 and a pair of flange portions 320 formed on the upstream and downstream sides of the downstream- Through the fluid injection pipe through hole 532 and through the pressurized fluid injection pipe through hole 531 formed in the flange portion of the downstream side of the pair of flange portions 520 on the upstream and downstream sides of the close adhesion and thermal setting packer 500, And the inside of the heat-curing packer 500.

The pressurized fluid injecting pipe 530 and the pressurized fluid injecting pipe 530 are inserted between the pressurized fluid injecting pipes 330 and 430 and the pressurized fluid injecting pipe inserting holes 331 and 431 and the pressurized fluid injecting pipe passing holes 432 and 433, A rubber bushing (not shown) is inserted between the thermosetting fluid injection tube insertion hole 531 and the pressurized and thermosetting fluid injection tube passage hole 532 to connect the downstream side difference accommodating packer 300 and the upstream side difference accommodating packer 400 and the packer 500 for close contact and thermosetting can be kept airtight.

The bypass means 700 is connected to the suction pipe 710 and is connected to the upstream side car accommodating packer 400 through a suction and suction connection which passes through the thermally vulcanizing packer 500 and the downstream car accommodating packer 300. [ A pipe 720 and a suction pump 730 for applying a suction force to the suction connection pipe 720.

The suction pipe 710 may be formed in a semicircular shape corresponding to the lower half of the inner circumferential surface of the underground pipe 10 and may include a plurality of suction holes 711 formed at the outer circumferential portion thereof to suck up the received constant or sewage .

The suction connection pipe 720 is in close contact with the flange portion 420 of the upstream side differential receiving packer 400 and the flange portion 520 of the heat shrinkable packer 500 and the flange portion 520 of the downstream side differential receiving packer 300, And the suction pipe connecting holes 721, 722, and 723 are formed in the flange portions 320, 420, and 520, respectively.

The suction connector through holes 721, 722 and 723 are formed in the circular steel plates 321, 421 and 521 and the covering portions 322, 422 and 522 constituting the flange portions 320, 420 and 520, It shall be indicated by a single sign.

Suction connection pipe through holes 724 and 725 are also formed in the packer mounting plate 230 and the reinforcing plate 600 of the packer mounting frame 200.

A rubber bushing (not shown) for maintaining airtightness is inserted between the outer peripheral surface of the suction connection pipe 720 and the inner peripheral surface of the suction connection pipe through holes 721, 722 and 723, It is preferable that the side-receiving-packer 400 and the close-packer and thermosetting packer 500 are configured to be hermetic.

The suction pump 730 may be installed on the ground or on the downstream side of the underground pipe 10, and the suction connection pipe 720 and the suction pump 730 may be connected by a hose.

It is preferable that the discharge end of the suction pump 730 is directed to the downstream side so that the received water or sewage is discharged to the downstream side of the work section.

The cleaning means 800 is connected to the cleaning air spraying pipe 810 and passes through the upstream side car accommodating packer 400 and the thermally vulcanizing packer 500 and the downstream car accommodating packer 300 An air supply pipe 820 for supplying air, and an air compressor 830 connected to the air supply pipe 820 to supply cleaning air.

The washing air spray tube 810 is formed in a semicircular arc shape corresponding to the lower half of the inner circumferential surface of the underground pipe 10 and has a plurality of spray nozzles 811 on the outer circumferential portion thereof, So that the cleaning air can be sprayed to wash the cleaning air.

The air supply pipe 820 passes through the flange portion 520 of the closely packed and thermosetting packer 500 and the flange portion 320 of the downstream side packaged packer 300, The air supply pipe through holes 821 and 822 are formed.

The air supply pipe through holes 821 and 822 are formed in the circular steel plates 321 and 521 and the covering portions 322 and 522 constituting the flange portions 320 and 520 and are represented by a single sign.

An air supply pipe through hole 823 is also formed in the packer mounting plate 230 of the packer mounting frame 200.

A rubber bushing (not shown) for maintaining airtightness is inserted between the outer circumferential surface of the air supply pipe 820 and the inner circumferential surface of the air supply pipe through holes 821 and 822 to connect the downstream side difference accommodating packer 300 and the upstream side difference accommodating packer 300, (400) and the packer (500) for close contact and thermosetting can be kept airtight.

The air compressor 830 may be installed on the ground, and the air supply pipe 820 and the air compressor 830 may be connected by a hose.

Hereinafter, each step of the BC repair method for partial breakage and crack repair of the underground pipe according to the present invention will be described.

Description of the camera installation process and the pre-cleaning process for monitoring in the underground pipe 10 will be omitted.

[Preparation process]

The assembling of the downstream side car accommodating packer 300 and the upstream side car accommodating packer 400 with the tightening and thermosetting packer 500, the bypass means 700 and the cleaning means 800, A repairing equipment mounted on the attachment mounting base 120 is prepared (see FIG. 6).

At this time, the lining member 20 is wound or covered on the outer circumferential surface of the cylindrical portion 510 of the packing and thermal-hardening packer 500.

[Maintenance equipment input process]

The repairing equipment is put into the repair section of the underground pipe 10 through the work area (see FIG. 7).

At this time, when the repairing equipment is input through the upstream side work port, it is preferable to input the repairing vehicle 100 through the downstream side work port because the traveling car 100 may be submerged in a subsequent process.

[Order Process]

The pressurized fluid is injected into the upstream-side car-receiving packer 400 through the pressurized fluid injection pipe 430 so that the cylindrical portion 410 is inflated and brought into close contact with the inner circumferential surface of the underground pipe 10, (See FIG. 8).

At this time, compressed air or water can be used as the pressurized fluid, but if water is used, it is preferable to use air because it may cause corrosion and elasticity degradation of the rubber material constituting the packer.

[Suction process]

The water or sewage received by the upstream side difference receiving packer 400 is sucked by the bypass means 700 and discharged to the downstream side of the maintenance equipment (see FIG. 9).

The suction process continues until the lining member 20 is completely repaired.

[Cleaning process]

The cleaning air is supplied to the cleaning air spray tube 810 through the air compressor 830 and the air supply tube 820 constituting the cleaning means 800 so that the cleaning air is brought into close contact with the upstream side storage container 400 And the heat-shrinkable packer 500, so that the repair interval is finally cleaned (see FIG. 10).

In this case, although washing water may be sprayed for washing, in this case, since the repair section of the underground pipe 10 is wetted with water, adhesion and water tightness may be deteriorated when the lining member 20 is hot- So that the maintenance section can be simultaneously cleaned and dried.

Also, the water or sewage and foreign matter in the repair section of the underground pipe 10 is pushed downward by the cleaning air to be removed in the repair section.

[Closing of lining member and heat hardening step]

The lining member (500), which is expanded or wound around the cylindrical portion (510) by the pressurized and thermosetting fluid injected through the pressurizing and thermosetting fluid injecting pipe (530) 20 are brought into close contact with the inner peripheral surface of the underground pipe 10 and the lining member 20 is thermally cured (see FIG. 11).

In this case, high-temperature, high-pressure air can be used as the pressurizing and thermosetting fluid, or high-temperature and high-pressure water can be used. In the case of using water, the rubber material constituting the packer may cause corrosion and elasticity degradation. Is preferably used.

[Withdrawal process of repair equipment]

When the thermal curing of the lining member 20 is completed, the pressurized fluid injected into the upstream-side difference accommodating packer 400 is discharged, and the pressurized and thermosetting fluid injected into the contact and heat-hardening packer 500 is discharged The cylindrical portions 410 and 510 of the closely packed and thermally cured packer 500 are contracted by the upstream side car accommodating packer 400 and the downstream car accommodating packer 300, The maintenance unit 100 is attached to the attachment mounting base 120 of the traveling bogie 100 in a state in which the side difference receiving packer 400 and the heat shrinking packer 500, the bypass unit 700, The equipment is withdrawn from the underground pipe 10 (see FIG. 12).

On the other hand, in the state where the pressurized fluid is injected into the upstream-side car accommodating packer 400, the pressurized fluid injection tube 430 is closed, and the pressurizing and fluidizing pressurizing chambers 500, After the thermosetting fluid injection pipe 530 is closed and the attachment mounting base 120 is separated from the packer mounting frame 200, the traveling bogie 100 can be moved to another construction site and the above-described process can be repeated.

If the total weight of the repairing equipment and the lining member 20 is heavy and can not be moved by a traveling motor (not shown) provided on the traveling carriage 100 in the above-described process, the rear end of the car body 110 and the upstream (Not shown) provided in a working vehicle (not shown) on the ground with pulling hooks 112 and 113 respectively attached to the reinforcing plate 600 closely attached to the upstream side end portion of the side difference accommodating packer 400 The maintenance equipment and the lining member 20 can be moved by connecting the wound tow rope 114 and winding or unwinding the tow rope 114 to the take-up drum.

13 shows another embodiment of the BC method for partial breakage and crack repair of the underground pipe according to the present invention. The difference between the order by the upstream side difference accommodating packer 400 and the order by the bypass means 700 After the washing by the suction and washing means 800 is completed, the pressurized fluid is injected into the downstream-side car- rying-receiving packer 300 through the pressurized-fluid injection pipe 330, and the cylindrical portion 310 of the downstream- Is expanded to close the underground pipe 10 to block the downstream side, thereby adding a step of preventing the water or the water discharged downstream by the bypass means 700 from flowing back into the repair section You may.

This process can be continued while the heat curing process of the lining member 20 is performed.

As described above, before the lining tube is brought into close contact with the inner circumferential surface of the underground pipe and the heat hardening process is performed, the upstream side is accommodated by the upstream side difference accommodating packer, and the acquired constant or sewage is supplied to the bypass means The lining tube is brought into close contact with the inner circumferential surface of the underground pipe and is thermally cured so that the inner circumferential surface of the underground pipe and the outer circumferential surface of the lining tube are in contact with each other Water and foreign matter are not interposed, and the quality of construction is improved, and the maintenance state can be maintained for a long time.

Further, by taking the downstream side by the downstream-side difference receiving packer, it is possible to prevent the water or sewage from flowing back into the repair section, thereby improving the quality of the construction.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or essential characteristics thereof. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents thereof should be construed as falling within the scope of the present invention.

10: underground pipe 20: lining member
100: Traveling truck 120: Attachment mounting base
200: Packer mounting frame 230: Packer mounting plate
300: downstream-side car-accommodating packer 400: upstream-side car-accommodating packer
500: packing for adhesion and thermosetting 600: reinforced coupling plate
700: Bypass means 800: Cleaning means

Claims

In the method of repairing the partial burr and the cracked portion of the underground pipe (10) by lining with the lining member (20) in the form of a sheet or tube,
A traveling carriage 100 having a bogie main body 110 which can be driven in the underground pipe 10 and an attachment mounting base 120; A packer mounting frame 200 mounted on the attachment mount 120; A downstream-side car-receiving packer 300 one end of which is coupled to the packer-mounting frame 200; An upstream side car acceptance packer 400 which is spaced upstream from the downstream car acceptance packer 300; A packing and thermosetting packer (500) coupled between the downstream side car acceptance packer (300) and the upstream side car acceptance packer (400); A bypass means (700) having a suction pipe (710) disposed in front of the upstream side difference accommodating packer (400); And a cleaning means (800) having an air spraying pipe (810) for cleaning disposed between the upstream side difference receiving container (400) and the close and thermal curing packer (500); A preparation step of preparing a repairing equipment equipped with the maintenance equipment;
A repairing equipment charging step of charging the repairing equipment into a repair section in the underground pipe 10 through a work site;
An order process for receiving the upstream side of the maintenance equipment by inflating a pressurized fluid into the upstream side difference accommodating packer 400 so as to be in close contact with the inner circumferential surface of the underground pipe 10;
A sucking step of sucking the water or sewage received by the upstream-side car-receiving packer (400) by the bypass means (700) and discharging it to the downstream side of the maintenance equipment;
The cleaning air is supplied to the cleaning air spray tube 810 of the cleaning means 800 so that the cleaning air is separated from the upper space side storage container 400 by the cleaning space S1 A cleaning step of finally cleaning the repair section;
A lining member 20 for pressing the lining member 20 against the inner circumferential surface of the underground pipe 10 and for thermally curing the lining member 20 by inflating and expanding the pressurized and thermosetting fluid in the contact and heat- Adhesion and thermosetting processes;
After the lining member 20 is thermally cured, the pressurized fluid injected into the upstream side difference accommodating packer 400 is discharged, and the pressurized and thermosetting fluid injected into the contact and heat- And the heating and cooling packer 500 is contracted by moving the upstream side car accommodating packer 400 and the upstream car accommodating packer 400 so that the maintenance car 100 is driven to withdraw the maintenance equipment from the underground pipe 10, fair; And the cracking method for crack repair and repair.