JP4719086B2 - Repair method for pipelines with branch pipes - Google Patents
Repair method for pipelines with branch pipes Download PDFInfo
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- JP4719086B2 JP4719086B2 JP2006151436A JP2006151436A JP4719086B2 JP 4719086 B2 JP4719086 B2 JP 4719086B2 JP 2006151436 A JP2006151436 A JP 2006151436A JP 2006151436 A JP2006151436 A JP 2006151436A JP 4719086 B2 JP4719086 B2 JP 4719086B2
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- branch pipe
- packer
- pipe
- main
- repair member
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- 238000000034 method Methods 0.000 title claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 39
- 239000002184 metal Substances 0.000 claims description 39
- 239000011347 resin Substances 0.000 claims description 18
- 229920005989 resin Polymers 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 229920001187 thermosetting polymer Polymers 0.000 claims description 15
- 238000007789 sealing Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Branch Pipes, Bends, And The Like (AREA)
- Pipe Accessories (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
本発明は、枝管の内面と該枝管の近傍の本管の内面とを補修部材によりライニングする分岐管を有する管路の補修方法に関するものである。 The present invention relates to a method for repairing a pipe having a branch pipe that lines an inner surface of a branch pipe and an inner face of a main pipe in the vicinity of the branch pipe with a repair member.
従来、パッカ―を本管内で収縮した状態で配置し、該パッカ―の外周に、熱硬化性樹脂を含浸させた補修部材本体を巻き付け、該パッカ―を本管内を移動させて枝管の中心軸線直下に枝管側のゴム筒の中心部位を位置させ、次いで、パッカ―内に圧縮空気を供給してパッカ―を膨張させ、パッカ―内からの空気圧によって本管内面に補修部材本体を適合させると共に、補修部材本体の枝部を枝管に嵌合して枝管の内面に適合させ、次いで、前記熱硬化性樹脂を硬化させるようにした分岐管を有する管路の補修方法がある（例えば特許文献１参照）。 Conventionally, a packer is placed in a contracted state in the main pipe, a repair member body impregnated with a thermosetting resin is wound around the outer periphery of the packer, and the packer is moved in the main pipe to move the center of the branch pipe. Position the central part of the rubber tube on the side of the branch pipe directly below the axis, then supply compressed air into the packer to expand the packer, and fit the repair member main body to the inner surface of the main pipe by the air pressure from the packer In addition, there is a method of repairing a pipe line having a branch pipe in which the branch portion of the repair member body is fitted to the branch pipe to be fitted to the inner surface of the branch pipe and then the thermosetting resin is cured ( For example, see Patent Document 1).
ところが、上記従来の補修方法の場合には、補修部材本体の枝部を枝管内に挿入させる手段としてパッカ―内に圧縮空気を供給してパッカ―を膨張させる手段によっているため、補修部材本体の枝部が充分に挿入される前に枝管部の径も膨張するために枝管内に枝管部が十分に挿入され難いと共に、枝管の内面と該枝管の近傍の本管の内面に補修部材本体を適合させた後，補修部材本体を加熱して該補修部材本体に含浸されている熱硬化性樹脂を硬化させるようにしているため、熱硬化性樹脂の硬化による収縮および管内面が湿潤状態では接着画十分に期待できないなどから補修部材による確実な止水効果が得難いという問題がある。 However, in the case of the above-described conventional repairing method, as a means for inserting the branch portion of the repair member main body into the branch pipe, a means for supplying compressed air into the packer and expanding the packer is used. Since the diameter of the branch pipe part also expands before the branch part is fully inserted, it is difficult to insert the branch pipe part sufficiently into the branch pipe, and the inner face of the branch pipe and the inner face of the main pipe in the vicinity of the branch pipe are difficult to insert. After the repair member body is adapted, the repair member body is heated to cure the thermosetting resin impregnated in the repair member body. There is a problem that it is difficult to obtain a reliable water-stopping effect by the repair member because the adhesive image cannot be sufficiently expected in a wet state.
本発明は、従来の技術の有するこのような問題点に鑑みてなされたものであり、その目的とするところは、ジャッキを用いて積極的に補修部材本体の枝部が確実に枝管内に挿入され、金属板によるシ―ルゴムリングの圧縮によって止水能力を確実に助長して、枝管の内面と該枝管の近傍の本管の内面とを補修部材により確実にライニングする分岐管を有する管路の補修方法を提供しようとするものである。 The present invention has been made in view of such problems of the prior art, and the object of the present invention is to positively insert the branch portion of the repair member body into the branch pipe positively using a jack. And a pipe having a branch pipe that surely promotes the water-stopping capability by compressing a seal rubber ring with a metal plate and lining the inner face of the branch pipe and the inner face of the main pipe in the vicinity of the branch pipe with a repair member. It is intended to provide road repair methods.
上記目的を達成するために、本発明における分岐管を有する管路の補修方法は、ジャッキを内蔵したパッカ―を本管内で収縮した状態で配置し、該パッカ―の外周に、熱硬化性樹脂を巻き付け、さらに、本管と枝管の内周面に押圧される本管部および枝管部を有するゴム筒の外表面で本管の両端部側および枝管の先端部側に形成した補修部材本体のシ―ルゴムリングと対向する補修部材本体の内周面に円筒状に巻かれた帯状金属板と前記補修部材本体とを巻き付け、該パッカ―を本管内を移動させて枝管の中心軸線直下に枝管側のゴム筒の中心部位を位置させ、パッカ―内のジャッキにより前記枝管側のゴム筒を枝管内に進入させ、パッカ―内に圧縮空気を供給してパッカ―を膨張させ、パッカ―内からの空気圧によって前記各金属板の円筒外径を拡大させ、各金属板によって前記各シ―ルゴムリングを本管と枝管の各内周に圧着させ、前記熱硬化性樹脂を加熱硬化させて、前記各金属板のリングをエンドレスにそれぞれ固型化すると共に前記各シ―ルゴムリングの止水能力を助長させるようにしたことを特徴とするものである。 In order to achieve the above object, a method for repairing a pipe line having a branch pipe according to the present invention includes arranging a packer with a built-in jack in a contracted state in the main pipe, and placing a thermosetting resin on the outer periphery of the packer. In addition, the repair was formed on the outer surface of the rubber tube having the main pipe part and the branch pipe part pressed against the inner peripheral surfaces of the main pipe and the branch pipe on both ends of the main pipe and the tip end side of the branch pipe. A belt-like metal plate wound in a cylindrical shape and the repair member main body are wound around the inner peripheral surface of the repair member main body facing the seal rubber ring of the member main body, and the packer is moved in the main pipe to move the central axis of the branch pipe The central part of the rubber tube on the branch pipe side is positioned directly below, the jack in the packer is used to enter the rubber pipe on the branch pipe side into the branch pipe, and compressed air is supplied into the packer to expand the packer. The cylinder of each metal plate by the air pressure from inside the packer The diameter of the metal plate is expanded, and the seal rubber ring is crimped to the inner periphery of the main pipe and the branch pipe by each metal plate, the thermosetting resin is heated and cured, and the ring of each metal plate is fixed endlessly. It is characterized in that it is molded and the water sealing ability of each seal rubber ring is promoted.
また、前記パッカ―の外周に巻き付けられるべき補修部材本体を構成するゴム筒を、少なくとも本管側のゴム筒と枝管側のゴム筒とに分割して構成したことを特徴とするものである。 The rubber cylinder constituting the repair member main body to be wound around the outer periphery of the packer is divided into at least a main cylinder side rubber cylinder and a branch pipe side rubber cylinder. .
請求項１に記載の発明においては、パッカ―を本管内を移動させて枝管の中心軸線直下に枝管側のゴム筒の中心部位を位置させ、パッカ―内のジャッキにより枝管側のゴム筒を枝管内に進入させるようにしたため、予めつづら状にパッカ―の外表面に巻き付けられ枝管側のゴム筒が確実に枝管内に伸びて進入され、枝管側の補修部材が所望の部位に配置られ得、またパッカ―内からの空気圧によって各金属板の円筒外径を拡大させ、各金属板によって各シ―ルゴムリングを本管と枝管の各内周に集中的に圧着させ、熱硬化性樹脂を加熱硬化させて、前記各金属板のリングをエンドレスにそれぞれ固型化するようにしたため、金属板によるシ―ルゴムリングの止水能力を確実に助長して、枝管の内面と該枝管の近傍の本管の内面とを補修部材により確実にライニングすることができる分岐管を有する管路の補修方法となる。 In the first aspect of the invention, the packer is moved in the main pipe so that the central portion of the rubber tube on the branch pipe side is positioned immediately below the central axis of the branch pipe, and the rubber on the branch pipe side is provided by the jack in the packer. Since the tube is made to enter the branch pipe, the rubber tube on the branch pipe side is surely stretched into the branch pipe and wound into the outer surface of the packer in advance, and the repair member on the branch pipe side is in the desired part. In addition, the cylinder outer diameter of each metal plate is enlarged by the air pressure from the inside of the packer, and each seal rubber ring is intensively crimped to each inner circumference of the main and branch pipes by each metal plate, Since the curable resin is heated and cured to solidify the ring of each metal plate in an endless manner, the water sealing ability of the seal rubber ring by the metal plate is surely promoted, and the inner surface of the branch pipe and the Using the inner surface of the main pipe near the branch pipe as a repair member Ri certainly a method of repairing a pipe having a branch pipe can be lined.
また、請求項２に記載の発明においては、パッカ―の外周に巻き付けられるべき補修部材本体を構成するゴム筒を、少なくとも本管側のゴム筒と枝管側のゴム筒とに分割して構成したので、補修部材本体の本管側と枝管側とを分けて容易にパッカ―の外周に巻き付けられることから、パッカ―の外周への補修部材本体の巻き付け作業が極めて容易にできる分岐管を有する管路の補修方法となる。 In the invention according to claim 2, the rubber cylinder constituting the repair member main body to be wound around the outer periphery of the packer is divided into at least a main cylinder side rubber cylinder and a branch pipe side rubber cylinder. Therefore, since the main pipe side and the branch pipe side of the repair member main body are separated and easily wrapped around the outer periphery of the packer, a branch pipe that makes it easy to wrap the repair member main body around the outer periphery of the packer. It becomes the repair method of the pipeline which has.
ジャッキを内蔵したパッカ―を本管内で収縮した状態で配置し、該パッカ―の外周に、熱硬化性樹脂を巻き付け、さらに、本管と枝管の内周面に押圧される本管部および枝管部を有するゴム筒の外表面で本管の両端部側および枝管の先端部側に形成した補修部材本体のシ―ルゴムリングと対向する補修部材本体の内周面に円筒状に巻かれた帯状金属板と前記補修部材本体とを巻き付け、該パッカ―を本管内を移動させて枝管の中心軸線直下に枝管側のゴム筒の中心部位を位置させ、パッカ―内のジャッキにより前記枝管側のゴム筒を枝管内に進入させ、パッカ―内に圧縮空気を供給してパッカ―を膨張させ、パッカ―内からの空気圧によって前記各金属板の円筒外径を拡大させ、各金属板によって前記各シ―ルゴムリングを本管と枝管の各内周に圧着させ、前記熱硬化性樹脂を加熱硬化させて、前記各金属板のリングをエンドレスにそれぞれ固型化すると共に前記各シ―ルゴムリングの止水能力を助長させるようにした分岐管を有する管路の補修方法。 A packer with a built-in jack is placed in a contracted state in the main pipe, a thermosetting resin is wrapped around the outer periphery of the packer, and a main pipe portion pressed against the inner peripheral surfaces of the main pipe and the branch pipe and Wound in a cylindrical shape on the inner peripheral surface of the repair member main body facing the seal rubber ring of the repair member main body formed on both ends of the main pipe and the tip end side of the branch pipe on the outer surface of the rubber tube having the branch pipe The belt-shaped metal plate and the repair member main body are wound, the packer is moved in the main pipe, the central part of the rubber tube on the side of the branch pipe is positioned immediately below the central axis of the branch pipe, and the jack in the packer is used to The rubber tube on the side of the branch pipe is inserted into the branch pipe, compressed air is supplied into the packer to expand the packer, and the cylinder outer diameter of each metal plate is expanded by the air pressure from the packer, Each seal rubber ring is placed inside the main and branch pipes with a plate. A pipe having a branch pipe that is heat-cured by thermosetting the resin to solidify the ring of each metal plate in an endless manner and promote the water-stopping ability of each seal rubber ring. Road repair method.
図１，図２，図３，図４を参照してこの発明の第一実施例について説明をする。
ここで、図１は外周に補修部材を巻き付けたパッカ―を本管内で収縮した状態で配置した断面図であり、図２は枝管の中心軸線直下においてジャッキによってパッカ―の枝管側を伸張させて補修部材本体の枝管側を枝管内に進入させた断面図であり、図３はパッカ―内に圧縮空気を供給してパッカ―を膨張させ、パッカ―内からの空気圧によって各金属板の円筒外径を拡大させ、各金属板によって各シ―ルゴムリングを本管と枝管の各内周に圧着させた断面図であり、図４は本発明に係る補修方法よって本管と枝管の内面をライニングした状態の断面図である。
A first embodiment of the present invention will be described with reference to FIGS.
Here, FIG. 1 is a cross-sectional view in which a packer having a repair member wrapped around its outer periphery is disposed in a contracted state within the main pipe, and FIG. 2 is an extension of the branch pipe side of the packer by a jack just below the central axis of the branch pipe. FIG. 3 is a cross-sectional view in which the branch pipe side of the repair member main body is entered into the branch pipe. FIG. 3 supplies compressed air to the packer to inflate the packer, and each metal plate is compressed by air pressure from the packer. FIG. 4 is a cross-sectional view in which the outer diameter of the cylinder is enlarged and each seal rubber ring is crimped to each inner periphery of the main pipe and the branch pipe by each metal plate, and FIG. 4 is a cross-sectional view of the main pipe and the branch pipe by the repair method according to the present invention. It is sectional drawing of the state which lined the inner surface of.
図１において、１は下水道管などの地中に埋設された本管であり、該本管１内には収縮状態のパッカ―２が配置されている。該パッカ―２は、本管側３と枝管側４とで略Ｔ字状に構成され、本管側３の両端内面および枝管側４の先端内面には閉塞管５，６，７が取り付けられてパッカ―２の内部を袋体に保形している。そして、本管側３の一端の閉塞管５には圧縮空気の供給管（図示せず）が、他端側の閉塞管６にはパッカ―索引装置（図示せず）が取り付けられ、枝管側４の閉塞管７の下位部位にはパッカ―２に内蔵され保持されたジャッキ８が接続されている。なお、前記圧縮空気の供給管やパッカ―索引装置は閉塞管５，６のいずれかに集合して配置してもよい。 In FIG. 1, reference numeral 1 denotes a main pipe buried in the ground such as a sewer pipe, and a contracted packer 2 is arranged in the main pipe 1. The packer 2 is formed in a substantially T shape on the main pipe side 3 and the branch pipe side 4, and the closed pipes 5, 6, 7 are formed on the inner surfaces of both ends of the main pipe side 3 and the front end inner surface of the branch pipe side 4. It is attached and the inside of packer 2 is held in a bag. A compressed air supply pipe (not shown) is attached to the closed pipe 5 at one end of the main pipe side 3, and a packer index device (not shown) is attached to the closed pipe 6 at the other end. A jack 8 built in and held in the packer 2 is connected to the lower portion of the closed tube 7 on the side 4. It should be noted that the compressed air supply pipe and the packer index device may be arranged in one of the closed pipes 5 and 6.
そして、該パッカ―２の外周には熱硬化性樹脂９が全周にわたって巻き付けられており、さらに、円筒状の巻かれた帯状金属板１０，１１，１２と補修部材本体１３とが該パッカ―２の外周に巻き付けられている。なお、前記金属板としては、鉄鋼，銅，アルミ等のいずれの金属でもよい。 A thermosetting resin 9 is wound around the outer periphery of the packer 2 over the entire periphery, and the cylindrical metal strips 10, 11, 12 and the repair member body 13 are wound around the packer. 2 is wound around the outer periphery. The metal plate may be any metal such as steel, copper, and aluminum.
前記補修部材本体１３は、本管１と枝管（後述する）の内周面に押圧されるゴム筒１４とその外表面で本管１の両端部側および枝管の先端部に形成したシ―ルゴムリング１５，１６，１７とで構成されている。 The repair member main body 13 includes a rubber cylinder 14 pressed against the inner peripheral surface of the main pipe 1 and the branch pipe (described later), and a sheath formed on both ends of the main pipe 1 and the tip of the branch pipe on the outer surface thereof. -It is composed of rubber rings 15, 16, and 17.
また、前記円筒状の巻かれた帯状金属板１０，１１，１２は、金属板１０が前記シ―ルゴムリング１５と対向する補修部材本体の内周面に、金属板１１が前記シ―ルゴムリング１６と対向する補修部材本体の内周面に、金属板１２が前記シ―ルゴムリング１７と対向する補修部材本体の内周面に、それぞれ配置されてパッカ―２の外周に巻き付けられるものである。（図１の状態）。 The cylindrical metal strips 10, 11, 12 wound in the cylindrical shape are arranged on the inner peripheral surface of the repair member main body where the metal plate 10 faces the seal rubber ring 15, and the metal plate 11 is connected to the seal rubber ring 16. The metal plate 12 is disposed on the inner peripheral surface of the repair member main body facing the seal rubber ring 17 and wound around the outer periphery of the packer 2. (State of FIG. 1).
このようにして本管１内において収縮した状態でその外周に熱硬化性樹脂９と円筒状の巻かれた帯状金属板１０，１１，１２と補修部材本体１３とが巻き付けられたパッカ―２が、適宜なパッカ―索引装置によって移動されて枝管１８の中心軸線直下に補修部材本体１３の枝管側のゴム筒１４の中心部位が位置されたところでパッカ―２の移動を停止させる。 Thus, the packer 2 in which the thermosetting resin 9, the cylindrical wound metal strips 10, 11, 12 and the repair member main body 13 are wound around the outer periphery of the main pipe 1 in a contracted state is provided. The movement of the packer 2 is stopped when the central portion of the rubber tube 14 on the branch pipe side of the repair member main body 13 is positioned just below the central axis of the branch pipe 18 by being moved by an appropriate packer indexing device.
次いで、パッカ―２内のジャッキ８を遠隔操作により作動させて、該ジャッキ８により前記枝管側のゴム筒１４を枝管１８内に進入させる。この枝管側のゴム筒１４を枝管１８内に進入させるのにジャッキ８を用いて積極的にゴム筒１４を進入させるので枝管側のゴム筒１４はスム―ズに枝管１８内に入って行くのである。（図２の状態）。なお、前記ジャッキ８を首振り自在にパッカ―２内に枢支しておくと、本管１に対して枝管１８が傾斜したものにおいてもゴム筒１４の枝管１８内への進入は容易にできるものである。 Next, the jack 8 in the packer 2 is operated by remote control, and the jack 8 causes the rubber tube 14 on the branch pipe side to enter the branch pipe 18. The jack 8 is used to make the rubber cylinder 14 actively enter the branch pipe 18 into the branch pipe 18 so that the rubber pipe 14 on the branch pipe side smoothly enters the branch pipe 18. It goes in. (State of FIG. 2). If the jack 8 is pivotally supported in the packer 2 so as to swing freely, the rubber tube 14 can easily enter the branch pipe 18 even when the branch pipe 18 is inclined with respect to the main pipe 1. It can be made.
枝管側のゴム筒１４が枝管１８内に納まった状態で、パッカ―２内に本管側３の一端の閉塞管５から圧縮空気を供給してパッカ―２を膨張させる。このパッカ―２の膨張により、パッカ―２内からの空気圧によって前記各金属板１０，１１，１２の円筒外径を拡大され、金属板１０によって補修部材本体１３のシ―ルゴムリング１５は本管１の内周面に、金属板１１によって補修部材本体１３のシ―ルゴムリング１６も本管１の内周面に、金属板１２によって補修部材本体１３のシ―ルゴムリング１７は枝管１８の内周面に、それぞれ集中的に圧着される。（図３の状態）。 In a state where the rubber tube 14 on the branch pipe side is housed in the branch pipe 18, compressed air is supplied into the packer 2 from the closed pipe 5 at one end on the main pipe side 3 to expand the packer 2. Due to the expansion of the packer 2, the cylindrical outer diameter of each of the metal plates 10, 11, 12 is expanded by the air pressure from the inside of the packer 2, and the seal rubber ring 15 of the repair member main body 13 is connected to the main pipe 1 by the metal plate 10. The seal rubber ring 16 of the repair member main body 13 is also attached to the inner peripheral surface of the main pipe 1 by the metal plate 11, and the seal rubber ring 17 of the repair member main body 13 is connected to the inner peripheral surface of the branch pipe 18 by the metal plate 12. In other words, each is intensively crimped. (State of FIG. 3).
各金属板１０，１１，１２によって補修部材本体１３の各シ―ルゴムリング１５，１６，１７がそれぞれ本管１または枝管１８の内周面に圧着させた状態で、前記圧縮空気を加熱状態とする。この加熱空気によってパッカ―２の外周に巻き付けられている熱硬化性樹脂９は、補修部材本体１３を本管１および枝管１８の内周面に密封し乍ら拡径された各金属板１０，１１，１２のリングもエンドレスにそれぞれ固型化するようにして硬化する。 With the seal rubber rings 15, 16, 17 of the repair member main body 13 being pressed against the inner peripheral surface of the main pipe 1 or the branch pipe 18 by the metal plates 10, 11, 12, the compressed air is heated. To do. The thermosetting resin 9 wound around the outer periphery of the packer 2 by the heated air is used to expand the diameter of each metal plate 10 by sealing the repair member main body 13 to the inner peripheral surfaces of the main pipe 1 and the branch pipe 18. , 11 and 12 are cured so as to be solidified endlessly.
前記加熱空気による熱硬化性樹脂９の硬化が修了すると、パッカ―２内の圧縮空気を抜き出し、ジャッキ８を初期状態に戻した後，パッカ―２を移動させて、本管１および枝管１８の内周面には、補修部材本体１３と各金属板１０，１１，１２とこれらを保護する樹脂層が形成されることになる。そして、本管１および枝管１８の内周面は平滑な樹脂９層でライニングされることになる。（図４の状態）。 When the curing of the thermosetting resin 9 by the heated air is completed, the compressed air in the packer 2 is extracted, the jack 8 is returned to the initial state, the packer 2 is moved, and the main pipe 1 and the branch pipe 18 are moved. The repair member main body 13, the respective metal plates 10, 11, 12 and a resin layer for protecting them are formed on the inner peripheral surface. The inner peripheral surfaces of the main pipe 1 and the branch pipe 18 are lined with a smooth resin 9 layer. (State of FIG. 4).
以上のように、パッカ―２を本管１内を移動させて枝管１８の中心軸線直下に枝管側のゴム筒１４の中心部位を位置させ、パッカ―２内のジャッキ８により枝管側のゴム筒１４を枝管１８内に進入させるようにしたため、予め屈曲状にパッカ―２の外表面に巻き付けられ枝管側のゴム筒１４が確実に枝管１８内に伸びて進入され、枝管側の補修部材１３が所望の部位に配置られる。またパッカ―２内からの空気圧によって各金属板１０，１１，１２の円筒外径を拡大させ、各金属板１０，１１，１２によって各シ―ルゴムリング１５，１６，１７を本管１と枝管１８の各内周に集中的に圧着させ、熱硬化性樹脂９を加熱硬化させて、前記各金属板１０，１１，１２のリングをエンドレスにそれぞれ固型化するようにしたため、金属板１０，１１，１２によるシ―ルゴムリング１５，１６，１７の止水能力を確実に助長して、枝管１８の内面と該枝管１８の近傍の本管１の内面とを補修部材１３により確実にライニングすることができるのである。 As described above, the packer 2 is moved in the main pipe 1 so that the central portion of the rubber tube 14 on the branch pipe side is positioned immediately below the central axis of the branch pipe 18 and the jack 8 in the packer 2 is used for the branch pipe side. Since the rubber cylinder 14 is made to enter the branch pipe 18, the rubber cylinder 14 on the side of the branch pipe is surely extended into the branch pipe 18 by being bent around the outer surface of the packer 2 in advance. The pipe-side repair member 13 is disposed at a desired site. Also, the cylinder outer diameter of each metal plate 10, 11, 12 is expanded by the air pressure from the inside of the packer 2, and each seal rubber ring 15, 16, 17 is connected to the main pipe 1 and the branch pipe by each metal plate 10, 11, 12. Since the thermosetting resin 9 is heat-cured and the rings of the metal plates 10, 11, and 12 are solidified in an endless manner, the metal plate 10, 11 and 12, the water sealing ability of the seal rubber rings 15, 16 and 17 is surely promoted, and the inner surface of the branch pipe 18 and the inner surface of the main pipe 1 near the branch pipe 18 are surely lined by the repair member 13. It can be done.
上記実施例１におけるパッカ―２の外周に巻き付けられるべき補修部材本体１３を構成するゴム筒１４を、少なくとも本管側のゴム筒と枝管側のゴム筒とに分割して構成するようにする。 The rubber cylinder 14 constituting the repair member main body 13 to be wound around the outer periphery of the packer 2 in the first embodiment is divided into at least a main cylinder side rubber cylinder and a branch pipe side rubber cylinder. .
図５には、補修部材本体を構成するゴム筒１４を、枝管側のゴム筒１４ａと本管側のゴム筒１４ｂに分割体で構成したものを示す。 FIG. 5 shows a configuration in which the rubber cylinder 14 constituting the repair member main body is divided into a branch pipe side rubber cylinder 14a and a main pipe side rubber cylinder 14b.
枝管側のゴム筒１４ａは鍔部２０を備え、該鍔部２０を本管側のゴム筒１４ｂに形成した孔２１に挿入してして組み付けられるようになっている。 The branch pipe side rubber cylinder 14a is provided with a collar part 20, and the collar part 20 is inserted into a hole 21 formed in the main pipe side rubber cylinder 14b and assembled.
したがって、本管内に配置されている収縮状態のパッカ―の外周にゴム筒１４を巻き付けるには、先ず本管側のゴム筒１４ｂをパッカ―の一端側からパッカ―に取り付け、その後に枝管側のゴム筒１４ａを前記孔２１を介して本管側のゴム筒１４ｂに組み付けるとよく、ゴム筒１４のパッカ―への巻き付け作業が容易にできるものである。 Therefore, in order to wrap the rubber cylinder 14 around the outer periphery of the contracted packer disposed in the main pipe, the main pipe side rubber cylinder 14b is first attached to the packer from one end side of the packer, and then the branch pipe side. The rubber cylinder 14a may be assembled to the rubber cylinder 14b on the main pipe side through the hole 21, so that the rubber cylinder 14 can be easily wound around the packer.
図６には、補修部材本体を構成するゴム筒１４を、枝管側のゴム筒１４ａと本管側のゴム筒１４ｃ，１４ｄに分割体で構成したものを示す。 FIG. 6 shows a structure in which the rubber cylinder 14 constituting the repair member main body is divided into a branch pipe side rubber cylinder 14a and a main pipe side rubber cylinders 14c and 14d.
この場合にも枝管側のゴム筒１４ａは鍔部２０を備え、本管側のゴム筒１４ｃ，１４ｄにはそれぞれ半円弧状の孔２２，２３が形成され、前記枝管側のゴム筒１４ａの鍔部２０を孔２２，２３に挿入してして組み付けられるようになっている。 Also in this case, the branch pipe side rubber cylinder 14a is provided with a flange 20, and the main pipe side rubber cylinders 14c and 14d are formed with semicircular holes 22 and 23, respectively, and the branch pipe side rubber cylinder 14a. The flange portion 20 is inserted into the holes 22 and 23 and assembled.
したがって、本管内に配置されている収縮状態のパッカ―の外周にゴム筒１４を巻き付けるには、先ず本管側のゴム筒１４ｃ，１４ｄをそれぞれパッカ―の両端側からパッカ―に取り付け、その後に枝管側のゴム筒１４ａを前記孔２２，２３を介して本管側のゴム筒１４ｃ，１４ｄに組み付けるとよく、ゴム筒１４のパッカ―への巻き付け作業がさらに容易にできるものである。 Therefore, in order to wind the rubber cylinder 14 around the outer periphery of the contracted packer disposed in the main pipe, first, the main pipe side rubber cylinders 14c and 14d are respectively attached to the packer from both ends of the packer, and thereafter The branch tube side rubber cylinder 14a may be assembled to the main pipe side rubber cylinders 14c and 14d through the holes 22 and 23, and the work of winding the rubber cylinder 14 around the packer can be further facilitated.
１ 本管
２ パッカ―
８ ジャッキ
９ 熱硬化性樹脂
１０，１１，１２ 金属板
１３ 補修部材本体
１４ ゴム筒
１４ａ，１４ｂ，１４ｃ，１４ｄ 分割ゴム筒
１５，１６，１７ シ―ルゴムリング
１８ 枝管
1 Main 2 Packer
8 Jack 9 Thermosetting resin 10, 11, 12 Metal plate 13 Repair member body 14 Rubber cylinder 14a, 14b, 14c, 14d Split rubber cylinder 15, 16, 17 Seal rubber ring 18 Branch pipe
Claims (2)
ジャッキを内蔵したパッカ―を本管内で収縮した状態で配置し、
該パッカ―の外周に、熱硬化性樹脂を巻き付け、さらに、前記本管と枝管の内周面に押圧される本管部および枝管部を有するゴム筒の外表面で本管の両端部側および枝管の先端部側に形成した補修部材本体のシ―ルゴムリングと対向する補修部材本体の内周面に円筒状に巻かれた帯状金属板と前記補修部材本体とを巻き付け、
該パッカ―を本管内を移動させて枝管の中心軸線直下に枝管側のゴム筒の中心部位を位置させ、
次いで、パッカ―内のジャッキにより前記枝管側のゴム筒を枝管内に進入させ、
次いで、パッカ―内に圧縮空気を供給してパッカ―を膨張させ、パッカ―内からの空気圧によって前記各金属板の円筒外径を拡大させ、各金属板によって前記各シ―ルゴムリングを本管と枝管の各内周に圧着させ、
次いで、前記熱硬化性樹脂を加熱硬化させて、前記各金属板のリングをエンドレスにそれぞれ固型化すると共に前記各シ―ルゴムリングの止水能力を助長させるようにした、
ことを特徴とする分岐管を有する管路の補修方法。 In a repair method for a pipe having a branch pipe that lines the inner surface of the branch pipe and the inner face of the main pipe in the vicinity of the branch pipe with a repair member,
A packer with a built-in jack is placed in a contracted state in the main,
A thermosetting resin is wound around the outer periphery of the packer, and further, both ends of the main pipe on the outer surface of the rubber cylinder having the main pipe part and the branch pipe part pressed against the inner peripheral surface of the main pipe and the branch pipe A belt-like metal plate wound in a cylindrical shape on the inner peripheral surface of the repair member body facing the seal rubber ring of the repair member body formed on the side and the distal end side of the branch pipe, and the repair member body,
The packer is moved in the main pipe so that the central portion of the rubber tube on the side of the branch pipe is positioned immediately below the central axis of the branch pipe,
Next, the rubber tube on the side of the branch pipe is caused to enter the branch pipe by a jack in the packer,
Next, compressed air is supplied into the packer to expand the packer, and the cylinder outer diameter of each metal plate is expanded by the air pressure from the packer, and each seal rubber ring is connected to the main pipe by each metal plate. Crimp to each inner circumference of the branch pipe,
Next, the thermosetting resin was heat-cured to solidify the ring of each metal plate in an endless manner and to promote the water-stopping ability of each seal rubber ring.
A method of repairing a pipeline having a branch pipe.
The rubber cylinder constituting the repair member main body to be wound around the outer periphery of the packer is divided into at least a main cylinder side rubber cylinder and a branch pipe side rubber cylinder. Repair method for pipelines with branch pipes.
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| DE112011100676B4 (en) | 2010-02-26 | 2021-02-04 | Trelleborg Pipe Seals Duisburg Gmbh | Lining element and method for producing a lining element |
| SI3693647T1 (en) | 2018-09-24 | 2023-01-31 | Haemaewlaeinen, Sami | Renovation drain system for repairing concrete drain |
| KR102216759B1 (en) * | 2018-12-05 | 2021-02-17 | 유수호 | Apparatus and method for repairing main pipe or branch pipe or main pipe and branch pipe |
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| JPH05339974A (en) * | 1992-06-11 | 1993-12-21 | Mutsuo Takamatsu | In-pipe automatic repair device |
| JP3660400B2 (en) * | 1995-07-13 | 2005-06-15 | 芦森工業株式会社 | Pipe branch repair method and repair device |
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