KR100687800B1 - Reinforced felt for Trenchless technology of Underground pipe rehabilitation?RTU - Google Patents

Reinforced felt for Trenchless technology of Underground pipe rehabilitation?RTU Download PDF

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Publication number
KR100687800B1
KR100687800B1 KR1020040061040A KR20040061040A KR100687800B1 KR 100687800 B1 KR100687800 B1 KR 100687800B1 KR 1020040061040 A KR1020040061040 A KR 1020040061040A KR 20040061040 A KR20040061040 A KR 20040061040A KR 100687800 B1 KR100687800 B1 KR 100687800B1
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South Korea
Prior art keywords
reinforcement
felt
woven fabric
synthetic resin
pipe
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KR1020040061040A
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Korean (ko)
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KR20060012367A (en
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정철권
신승복
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주식회사 나스텍엔지니어링
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Priority to KR1020040061040A priority Critical patent/KR100687800B1/en
Publication of KR20060012367A publication Critical patent/KR20060012367A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/18—Appliances for use in repairing pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/26—Lining or sheathing of internal surfaces
    • B29C63/34—Lining or sheathing of internal surfaces using tubular layers or sheathings
    • B29C63/36—Lining or sheathing of internal surfaces using tubular layers or sheathings being turned inside out
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
    • F16L55/1651—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being everted
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
    • F16L55/1652—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being pulled into the damaged section
    • F16L55/1654—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being pulled into the damaged section and being inflated

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Pipe Accessories (AREA)

Abstract

본 발명은 지하매설관로에 설치하는 비굴착 보수용 펠트에 관한 것으로서, 특히 합성수지로 코팅한 직포(織布) 외피에 직포로 보강한 부직포 내피를 여러 겹으로 적층하고, 직포의 위사와 경사의 신축성을 달리하며, 봉합부를 합성수지로 코팅함으로써, 봉합부가 관로에 밀착되고, 인장강도를 다양하게 조절하여 현장상황에 따른 다양한 반전압력과 경화온도에 견딜 수 있음은 물론, 경화 후에 요구되는 구조물의 강도보강수준에 부합할 수 있는 지하매설관로 구조보강용 비굴착보수 강화펠트에 관한 것이다.The present invention relates to a non-excavation repair felt installed in an underground buried pipeline, in particular, laminated nonwoven fabric endothelium reinforced with woven fabric in a woven fabric coating coated with synthetic resin, the elasticity of the weft and warp of the woven fabric By coating the seal with synthetic resin, the seal is closely attached to the pipe line, and the tensile strength can be adjusted in various ways to withstand various reversal pressures and curing temperatures according to the site situation. It is about non-excavation repair reinforcing felt for structural reinforcement.

본 발명은 판상체를 원통형으로 형성하고 양측단을 맞대기 또는 겹이음한 후 봉합해서 지하매설관로에 설치하는 비굴착 보수공법에 사용되는 강화펠트에 있어서, 상기 판상체는 직포의 한쪽면을 합성수지로 코팅한 외피와; 상기 외피에 적층되며 부직포에 직포가 보강된 내피; 로 구성된다.The present invention is a reinforcing felt used in the non-excavation repair method of forming a plate-shaped body in a cylindrical shape, butt-fitting or overlapping both ends and then sutured and installed in the underground buried pipeline, the plate-like body is made of synthetic resin Coated shell; An endothelial layer laminated on the outer shell and woven fabric reinforced on a nonwoven fabric; It consists of.

강화펠트, 지하매설관로, 비굴착, 직포, 부직포, 봉합, 반전Reinforced Felt, Underground Buried Pipe, Non-Excavated, Woven, Non-Woven, Sutured, Reversed

Description

지하매설관로 구조보강용 비굴착보수 강화펠트{Reinforced felt for Trenchless technology of Underground pipe rehabilitation；RTU}Reinforced felt for Trenchless technology of Underground pipe rehabilitation; RTU}

도 1은 본 발명의 지하매설관로 구조보강용 비굴착보수 강화펠트를 나타내는 단면도,1 is a cross-sectional view showing a non-excavation repair reinforcement felt for structural reinforcement underground underground pipe line of the present invention,

도 2는 본 발명의 지하매설관로 구조보강용 비굴착보수 강화펠트의 다른 실시예(하수도 관로용 펠트)를 나타내는 단면도,Figure 2 is a cross-sectional view showing another embodiment of the non-excavation repair reinforcement felt for underground reinforcement pipeline structural reinforcement of the present invention,

도 3은 본 발명의 지하매설관로 구조보강용 비굴착보수 강화펠트의 다른 실시예(상수도 관로용 펠트)를 나타내는 단면도,Figure 3 is a cross-sectional view showing another embodiment of the non-excavation repair reinforcement felt for underground reinforcement pipeline structural reinforcement of the present invention,

도 4는 본 발명의 비굴착보수 강화펠트를 이용한 하수도용 관로의 공기압반전을 나타내는 사용상태도,4 is a state diagram showing the pneumatic inversion of the sewer pipe using the non-excavation repair reinforced felt of the present invention,

도 5는 본 발명의 비굴착보수 강화펠트를 이용한 하수도용 관로의 수압반전을 나타내는 사용상태도,5 is a state diagram showing the hydraulic pressure reversal of the sewer pipe using the non-excavation repair reinforcement felt of the present invention,

도 6은 본 발명의 비굴착보수 강화펠트를 이용한 상수도용 관로의 공기압반전을 나타내는 사용상태도,6 is a state diagram showing the air pressure inversion of the water supply pipe using the non-excavation repair reinforcement felt of the present invention,

도 7은 본 발명의 비굴착보수 강화펠트를 이용한 상수도용 관로의 수압반전을 나타내는 사용상태도이다.7 is a state diagram showing the hydraulic pressure reversal of the water supply pipe using the non-excavation repair reinforcement felt of the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

1: 관로 2: 맨홀1: pipeline 2: manhole

3: 강화펠트(튜브) 4: 반전장치3: reinforced felt (tube) 4: reversing device

5: 탱크 6: 펌프5: tank 6: pump

7: 작업구 굴착부7: work tool rig

10: 외피 11: 직포10: jacket 11: woven

12: 합성수지 20: 내피12: resin 20: inner skin

21: 부직포 22: 직포21: nonwoven fabric 22: woven fabric

30: 봉합부 31: 실30: suture 31: thread

40: 합성수지 50: 판상체40: synthetic resin 50: plate body

본 발명은 지하매설관로에 설치하는 비굴착 보수용 펠트에 관한 것으로서, 더욱 상세하게는 외피와 내피에 사용되는 직포의 인장강도를 다양하게 조절하여 사용목적 및 현장상황에 따른 다양한 반전압력과 경화온도에 견딜 수 있으며 경화후에 요구되는 구조물의 강도보강수준에도 부합할 수 있는 지하매설관로 구조보강용 비굴착보수 강화펠트에 관한 것이다.The present invention relates to a non-excavation repair felt installed in an underground buried pipeline, and more specifically, by varying the tensile strength of the woven fabric used for the outer skin and the inner skin various reversal pressure and curing temperature according to the purpose and site conditions It is about underground buried pipes that can withstand and meet the strength level of structures required after hardening.

일반적으로 상,하수관이 노후 또는 파손되었을 경우 이러한 상,하수관을 보수하기 위해서 굴삭기 등을 이용하여 노후 또는 파손된 관이 매몰된 지반을 직접 굴착하여 해당 관을 보수하거나 교체하는 방법이 널리 사용되었다.In general, when water and sewage pipes are old or damaged, a method of repairing or replacing the pipes by directly excavating the ground where the old or damaged pipes are buried by using an excavator to repair the water and sewage pipes has been widely used.

상기 굴착에 의한 상,하수관 보수방법은 공사비 및 공사기간이 많이 소요되어 오수누출에 의한 환경오염에 신속하게 대응하지 못하고, 안전사고의 위험이 있으며 주변의 미관을 해칠뿐만 아니라 만성적인 교통체증의 주요 원인이 되었다.The method of repairing the water and sewage pipes by excavation takes a lot of construction cost and construction period, so it is not possible to respond quickly to environmental pollution caused by sewage leakage, there is a risk of safety accident, and not only damage the aesthetics of the surrounding area, Caused it.

따라서, 각종 산업배관인 상하수도, 가스, 전기, 통신, 송유관, 해수관 등이 파열 또는 균열된 경우에 굴착작업 없이 관내로 보강튜브를 인입시킨 후 증기열 또는 온수열로 경화하여 새로운 관을 형성하는 현장 경화파이프 라이닝 공법이 개발되었다.Therefore, when various industrial pipes such as water and sewage, gas, electricity, communication, oil pipe, seawater pipe are ruptured or cracked, a reinforcing tube is introduced into the pipe without excavation work and then hardened by steam heat or hot water heat to form a new pipe. Field hardened pipe lining methods have been developed.

상기 비굴착식 하수관 보수공법을 간략히 설명하면, 먼저 하수관내를 준설 및 세정하고, CCTV 카메라를 이용하여 연결관의 돌출부위 절단 및 관내 정밀조사를 한 후, 보수용 튜브에 열경화성 수지를 함침시킨 다음 이를 냉동차로 현장까지 이동한다.Briefly describing the non-excavation sewer pipe repair method, first dredging and cleaning the sewer pipe, cutting the protruding portion of the connection pipe using a CCTV camera and performing a detailed inspection of the pipe, and then impregnated a thermosetting resin in the repair tube. Move it to the site by refrigeration car.

다음으로, 수압이나 공기압을 이용하여 하수관 보수용 튜브를 반전시킨 후 이를 하수관 내로 삽입시키고, 하수관 보수용 튜브 내로 온수나 증기를 주입하여 튜브 내에 함침된 열경화수지가 경화하면 보수작업이 완료된다.Next, after inverting the sewer pipe repair tube using water pressure or air pressure, it is inserted into the sewer pipe, and hot water or steam is injected into the sewer pipe repair tube to cure the thermosetting resin impregnated in the tube.

이러한 비굴착식 보수공정에 사용되는 원형튜브는 주로 원통형의 부직포에 방수필름이 코팅 또는 적층된 구조를 가지며, 상기 원통형의 부직포는 평판상의 부직포를 원통형으로 성형한 다음, 양쪽 끝단부를 실로 봉재하거나 접착제 또는 열 로 접착하여 제조한다.The circular tube used in the non-excavative repair process has a structure in which a waterproof film is coated or laminated on a cylindrical nonwoven fabric, and the cylindrical nonwoven fabric is formed into a cylindrical nonwoven fabric into a cylindrical shape, and then both ends are sealed with seals or adhesives. Or by heat bonding.

그러나, 실로 봉재한 부분이 반전압과 고온에 견딜 수 있도록 하기 위해 이중으로 코팅되면서 두꺼워져서 이 부분의 수지량이 감소하여 경화후 물리적 특성에 좋지 않은 영향을 미치는 문제점이 있었다.However, there is a problem in that the portion sealed with the thread is thickened with a double coating so as to withstand half voltage and high temperature, thereby reducing the amount of resin in the portion, which adversely affects physical properties after curing.

또한, 부직포를 사용하기 때문에 인장강도의 조절이 용이하지 않아서 현장상황에 따른 다양한 반전압력과 경화온도에 견디기 힘들었으며, 경화후에 요구되는 구조물의 강도보강수준에도 미치지 못하는 문제점이 있었다.In addition, since the nonwoven fabric is not easy to control the tensile strength, it was difficult to withstand various reversal pressures and curing temperatures according to the site situation, and there was a problem that the strength reinforcement level of the structure required after curing was not reached.

본 발명은 상기와 같은 종래 기술의 문제점을 해결하기 위하여 안출된 것으로서, 봉합부가 얇게 되고, 사용목적 및 현장상황에 따른 다양한 반전압력과 경화온도에 견딜 수 있으며, 경화후에 기계적 물성이 우수하여 요구되는 구조물의 강도보강수준에 부합될 수 있을 뿐만 아니라, 유체의 압력이 높은 관로에서도 시공이 가능한 지하매설관로 구조보강용 비굴착보수 강화펠트를 제공하는데 그 목적이 있다.The present invention has been made to solve the problems of the prior art as described above, the sealing portion is thin, can withstand a variety of reverse pressure and curing temperature according to the purpose of use and site conditions, and excellent mechanical properties after curing is required In addition to meeting the strength reinforcement level of the structure, the purpose is to provide a non-excavation repair reinforcement felt for structural reinforcement underground underground pipe that can be installed in the pipeline with high pressure of fluid.

이와 같은 목적을 달성하기 위한 본 발명의 지하매설관로 구조보강용 비굴착보수 강화펠트는Underground buried pipe line structural reinforcement non-excavation repair reinforcement felt of the present invention for achieving the above object

판상체를 원통형으로 형성하고 양측단을 맞대기 또는 겹이음한 후 봉합해서 지하매설관로에 설치하는 비굴착 보수공법에 사용되는 펠트에 있어서,In the felt used in the non-excavation repair method of forming a plate-shaped body in a cylindrical shape, butted or overlapped on both ends and then sutured and installed in the underground buried pipeline,

상기 판상체는The plate body is

직포의 한쪽면을 합성수지로 코팅한 외피와;An outer surface of one side of the woven fabric coated with a synthetic resin;

상기 외피에 적층되며 부직포에 직포가 보강된 내피;An endothelial layer laminated on the outer shell and woven fabric reinforced on a nonwoven fabric;

로 구성되는 것을 특징으로 한다.Characterized in that consists of.

그리고, 상기 내피는 요구되는 구조적인 강도에 따라 외피에 2겹, 3겹 등 여러 겹으로 적층되는 것을 특징으로 하고, 상기 직포(織布)는 경사(날실)와 위사(씨실)의 신축성이 다른 것을 특징으로 하며, 상기 외피를 구성하는 직포는 두께를 조절하여 관로에 따른 높은 압력에 견딜 수 있도록 한 것을 특징으로 한다.In addition, the inner skin is characterized in that it is laminated in several layers, such as two-ply, three-ply on the outer shell according to the required structural strength, the woven fabric is different in elasticity of warp (weft) and weft (weft) Characterized in that, the woven fabric constituting the outer shell is characterized in that to withstand the high pressure according to the pipeline by adjusting the thickness.

또한, 상기 외피는 직포의 한쪽면을 합성수지로 코팅하되, 외피 중 봉합부가 되는 부분은 합성수지 코팅이 되지 않는 것을 특징으로 하고, 상기 합성수지는 폴리에틸렌, 폴리우레탄 또는 폴리아마이드와 EVA의 혼합물인 것을 특징으로 한다.In addition, the outer shell is coated on one side of the woven fabric with a synthetic resin, the portion of the outer skin is characterized in that the synthetic resin coating is not, the synthetic resin is characterized in that the mixture of polyethylene, polyurethane or polyamide and EVA do.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 지하매설관로 구조보강용 비굴착보수 강화펠트를 나타내는 단면도이고, 도 2는 본 발명의 지하매설관로 구조보강용 비굴착보수 강화펠트의 다른 실시예(하수도 관로용 펠트)를 나타내는 단면도이며, 도 3은 본 발명의 지하매설관로 구조보강용 비굴착보수 강화펠트의 다른 실시예(상수도 관로용 펠트)를 나타내는 단면도이다.1 is a cross-sectional view showing a non-excavation repair reinforcement felt for underground buried pipeline reinforcement structure of the present invention, Figure 2 is another embodiment of a non-excavation repair reinforcement felt for underground reinforcement pipe structure reinforcement of the present invention (sewage pipe felt) 3 is a cross-sectional view showing another embodiment (felt for water supply pipe) of an underground drilling pipe structure non-excavation repair reinforcement felt of the present invention.

도시된 바와 같이, 본 발명에 따른 강화펠트는 판상체(50)를 원통형으로 형성하고 양측단을 맞대기하거나, 겹이음한 후 실(31)로 봉합하여 제조한다.As shown, the reinforcing felt according to the present invention is formed by forming a plate-like body 50 in a cylindrical shape and the opposite ends or the joints are sealed with a seal 31.

상기 판상체(50)는 외피(10)에 내피(20)가 적층된 형태의 구조이며, 외피(10)는 직포(11)의 한쪽면을 폴리에틸렌이나 폴리우레탄으로 코팅하거나 폴리아마이드와 EVA의 혼합물 등의 합성수지(12)로 코팅하여 제조한다.The plate 50 has a structure in which the inner shell 20 is laminated on the outer shell 10, and the outer shell 10 is coated on one side of the woven fabric 11 with polyethylene or polyurethane or a mixture of polyamide and EVA. It is prepared by coating with a synthetic resin (12).

상기 외피(10)는 직포(11)의 한쪽면을 합성수지(12)로 코팅하되, 실로 봉재 하는 부분이 이중코팅되어 두꺼워지지 않도록 하기 위해 봉합부(30)가 되는 부분에는 합성수지(12) 코팅을 하지 않는다.The outer shell 10 is coated on one side of the woven fabric 11 with a synthetic resin 12, but the portion to be sealed 30 is coated with a synthetic resin 12 in order to prevent the portion is sealed with double coating is thickened I never do that.

그리고, 내피(20)는 부직포(21)에 직포(22)를 적층하여 보강시켜서 제조하며, 상기 외피(10)에 니들펀칭하여 적층된다.In addition, the inner skin 20 is manufactured by laminating and reinforcing the woven fabric 22 on the nonwoven fabric 21, and is laminated by needle punching on the outer shell 10.

봉합부(30)에 사용되는 실(31)로는 유리솜을 사용하거나 일반적인 실에 폴리에틸렌이나 폴리우레탄 코팅을 하여 사용한다. As the yarn 31 used in the seal 30, glass wool is used or a general yarn is used by coating polyethylene or polyurethane.

외피(10)와 내피(20)에 사용되는 직포(11,22)는 현장상황에 따른 다양한 반전압력과 경화온도에 견딜 수 있고, 인장강도를 조절하여 경화후 강화펠트(3)가 관로 내부면에 더욱더 밀착되도록 하기 위해 경사(날실)와 위사(씨실)의 재질을 달리하여 신축성에 차이가 나게 제조한다.The woven fabrics 11 and 22 used for the outer shell 10 and the inner shell 20 can withstand various reversal pressures and curing temperatures according to the site situation, and after the hardening by adjusting the tensile strength, the reinforced felt 3 is hardened to the inner surface of the pipe. In order to be in close contact with the warp (warp) and the weft (weft) by changing the material of the manufacturing is different.

외피(10)에 사용되는 직포(11)는 상,하수도용 관로에 따라 그 두께를 달리하며, 일반적으로 상수도용 관로에 사용되는 직포(11)는 두께를 두껍게 하고 하수도용 관로에서는 얇게 제조한다.The woven fabric 11 used for the outer shell 10 varies its thickness according to the water and sewage pipes, and in general, the woven fabric 11 used for the water supply pipe is made thick and made thin in the sewer pipe.

상수도용 관로일 경우에는 신축성을 최대한 살려서 지진 등과 같은 외부 충격력으로 인한 지반의 처짐이나 붕괴로 발생되는 상수도 관로의 파괴를 최소화할 수 있도록 제조한다.In the case of water supply pipeline, it is manufactured to minimize the destruction of the water supply pipeline caused by sag or collapse of the ground due to external impact force such as earthquake by utilizing the elasticity to the maximum.

상기 내피(20)는 원통형의 강화펠트(3) 내부 두께를 조절하고 현장상황에 따른 반전압력과 경화온도를 고려하여 외피(10)에 여러 겹으로 적층할 수 있다.The inner shell 20 may be laminated in multiple layers on the outer shell 10 in consideration of the reinforcement pressure and curing temperature according to the situation and to adjust the thickness of the cylindrical reinforcement felt (3).

판상체(50)는 겹쳐지는 부분을 실(31)로 봉합하고, 경화후에 봉합부(30)의 기계적 물성을 향상시키기 위해 봉합부(30)를 폴리에틸렌 또는 폴리우레탄 등의 합 성수지(40)로 얇게 코팅한다.The plate-like body 50 seals the overlapping portion with the seal 31, and in order to improve the mechanical properties of the sealing portion 30 after curing, the sealing portion 30 is made of synthetic resin 40 such as polyethylene or polyurethane. Coating thinly with

상기와 같이 구성된 본 발명의 지하매설관로 구조보강용 비굴착보수 강화펠트는 다음과 같이 작용한다.Underground buried pipe line structural reinforcement non-excavation repair reinforcement felt of the present invention configured as described above acts as follows.

도 4 및 도 6은 본 발명의 비굴착보수 강화펠트를 이용한 하수도용 및 상수도용 관로의 공기압반전을 나타내는 사용상태도이고, 도 5 및 도 7은 본 발명의 비굴착보수 강화펠트를 이용한 하수도용 및 상수도용 관로의 수압반전을 나타내는 사용상태도이다.4 and 6 is a state diagram showing the air pressure inversion of the sewer and water supply pipes using the non-excavation repair reinforcement felt of the present invention, Figures 5 and 7 are sewage using the non-excavation repair reinforcement felt of the present invention and This is a state diagram showing the hydraulic pressure reversal of the water supply pipe.

상,하수관이 노후 또는 손상된 경우 굴착공사를 하지 않고, 직포(11)와 합성수지(12)로 이루어진 외피(10)와 부직포(21)와 직포(22)로 구성된 한 겹 이상의 내피(20)로 이루어진 강화펠트(3)를 원통형으로 형성한 다음, 양측단을 실(31)로 봉합한다.If the water and sewage pipes are old or damaged, the excavation work is not carried out, and the outer shell 10 made of the woven fabric 11 and the synthetic resin 12, and the nonwoven fabric 21 and the woven fabric 22 made of one or more layers of the inner shell 20 are formed. After forming the reinforcing felt (3) in a cylindrical shape, both ends are sealed with a seal (31).

그리고, 봉합부(30)를 폴리에틸렌 또는 폴리우레탄 등의 합성수지(40)로 코팅한 다음, 상기 내피(20)에 열경화성 에폭시나 수지 등의 경화제를 함침시킨 후 노후 또는 손상된 상,하수관 내부로 반전삽입한다.Then, the sealing unit 30 is coated with a synthetic resin 40 such as polyethylene or polyurethane, and then the endothelial 20 is impregnated with a curing agent such as a thermosetting epoxy or resin, and then reversely inserted into an old or damaged water and sewage pipe. do.

마지막으로, 관로(2)내로 온수 또는 증기를 투입하여 강화펠트(3)를 부풀려서 강화펠트(3)의 내피(20)가 상,하수관 내부와 밀착되도록 하여 열경화하면 관로(2)보수작업이 완료된다.Finally, the hot water or steam is introduced into the pipe line 2 to inflate the reinforcement felt 3 so that the inner shell 20 of the reinforcement felt 3 is brought into close contact with the inside of the upper and sewer pipes, and then heat-cured. Is done.

따라서, 외피(10)와 내피(20)를 구성하고 있는 직포(11,22)의 경사와 위사의 재질을 달리하여 신축성을 조절함으로써, 봉합부가 관로에 더욱더 밀착되고 인장강도를 조절하여 현장상황에 따른 다양한 반전압력과 경화온도에 견딜 수 있다.Therefore, by adjusting the elasticity by changing the material of the warp and the weft of the woven fabric (11, 22) constituting the outer shell 10 and the inner shell 20, the suture is more closely adhered to the pipeline and the tensile strength is adjusted to the field situation Withstands various reverse pressures and curing temperatures.

그리고, 외피(10) 중 봉합부(30)가 되는 부분에는 합성수지(12) 코팅이 되어 있지 않아서 실로 봉합하여 합성수지(40)로 코팅하는 경우 봉합부(30)가 이중으로 코팅되지 않음으로써, 경화시 봉합되는 부분의 수지량이 감소되지 않기 때문에 기계적 물성이 우수해져서 요구되는 구조물의 강도보강수준에 부합될 수 있다.In addition, the portion of the outer shell 10, which is the seal 30, is not coated with the synthetic resin 12, so that when the seal is sealed with a seal and coated with the synthetic resin 40, the seal 30 is not double coated, thereby curing. Since the amount of resin in the part to be sealed is not reduced, the mechanical properties can be improved to meet the required strength level of the structure.

또한, 외피(10)에 내피(20)를 여러 겹으로 적층함으로써 보수관로(1)에 따라 보강펠트(3)의 두께를 자유롭게 조절할 수 있을 뿐만 아니라 강도도 향상시킬 수 있다.In addition, by stacking the endothelium 20 in multiple layers on the outer shell 10, the thickness of the reinforcement felt 3 can be freely adjusted according to the water conduit 1, as well as the strength can be improved.

이와 같이 구성된 본 발명의 지하매설관로 구조보강용 비굴착보수 강화펠트는 봉합부가 관로에 밀착되고, 인장강도를 다양하게 조절하여 현장상황에 따른 다양한 반전압력과 경화온도에도 견딜 수 있음은 물론, 경화후에 기계적 물성이 우수하여 상, 하수관로 보수에 요구되는 구조물의 강도보강수준에 부합할 수 있는 유용한 효과를 발휘한다.The non-excavation repair reinforcement felt for structural reinforcement of the underground buried pipe structure of the present invention configured as described above is able to withstand various reversal pressures and curing temperatures according to the site situation by adjusting the sealing portion to the pipeline and controlling the tensile strength in various ways. Later, it has excellent mechanical properties and shows useful effects to meet the strength reinforcement level of structures required for repair of water and sewage pipes.

본 발명은 기재된 구체예에 대해서만 상세히 설명되었지만 본 발명의 사상과 범위내에서 다양하게 변경 또는 변형할 수 있음은 본 발명이 속하는 기술분야의 당업자에게는 자명한 것이며, 따라서 그러한 변경 또는 변형은 첨부된 특허청구범위에 속한다 해야 할 것이다.Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made within the spirit and scope of the present invention, and such changes or modifications are to the accompanying patents. Will have to belong to the claims.

Claims (6)

판상체를 원통형으로 형성하고 양측단을 맞대기 또는 겹이음한 후 봉합해서 지하매설관로에 설치하는 비굴착 보수공법에 사용되는 보수펠트에 있어서,In the repairing felt used in the non-excavation repairing method in which the plate-shaped body is formed in a cylindrical shape, butted or overlapped at both ends, and then sealed and installed in the underground buried pipeline, 상기 판상체는The plate body is 직포의 한쪽면을 합성수지로 코팅한 외피와;An outer surface of one side of the woven fabric coated with a synthetic resin; 상기 외피에 적층되며 부직포에 직포가 보강된 내피;로 구성되며,It is laminated to the outer shell and woven fabric reinforced with a nonwoven fabric; composed of, 상기 직포는 경사와 위사의 신축성이 다른 것을 특징으로 하는 지하매설관로 구조보강용 비굴착보수 강화펠트.The woven fabric is an underground burial pipe, characterized in that the elasticity of the warp and weft reinforcement non-excavation repair reinforcement for structural reinforcement. 제 1항에 있어서,The method of claim 1, 상기 내피는 요구되는 구조적인 강도에 따라 외피에 2겹, 3겹 등 여러 겹으로 적층되는 것을 특징으로 하는 지하매설관로 구조보강용 비굴착보수 강화펠트.The endothelial is a non-excavation repair reinforcement felt for underground reinforcement pipe reinforcement structure, characterized in that the layer is laminated in multiple layers, such as two-ply, three-ply depending on the required structural strength. 삭제delete 제 1항 또는 제 2항에 있어서,The method according to claim 1 or 2, 상기 외피를 구성하는 직포는 두께를 조절하여 관로에 따른 높은 압력에 견 딜 수 있도록 한 것을 특징으로 하는 지하매설관로 구조보강용 비굴착보수 강화펠트.Non-excavation repair reinforcement felt for underground reinforcement pipe reinforcement structure, characterized in that the woven fabric constituting the outer shell to adjust the thickness to withstand the high pressure according to the pipeline. 제 1항 또는 제2항에 있어서,The method according to claim 1 or 2, 상기 외피는 직포의 한쪽면을 합성수지로 코팅하되, 외피 중 봉합부가 되는 부분은 합성수지 코팅이 되지 않는 것을 특징으로 하는 지하매설관로 구조보강용 비굴착보수 강화펠트.The outer shell is coated with a synthetic resin on one side of the woven fabric, the portion of the outer portion of the outer portion is characterized in that the synthetic resin coating is not buried repair reinforcement for the underground buried pipe reinforcement. 제 1항 또는 제 2항에 있어서,The method according to claim 1 or 2, 상기 합성수지는 폴리에틸렌, 폴리우레탄 또는 폴리아마이드와 EVA의 혼합물인 것을 특징으로 하는 지하매설관로 구조보강용 비굴착보수 강화펠트.The synthetic resin non-excavation repair reinforcement felt for underground reinforcement pipe reinforcement structure, characterized in that the mixture of polyethylene, polyurethane or polyamide and EVA.
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