JP2023014779A - Rehabilitation pipe structure and pipe rehabilitation method - Google Patents

Rehabilitation pipe structure and pipe rehabilitation method Download PDF

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JP2023014779A
JP2023014779A JP2021118933A JP2021118933A JP2023014779A JP 2023014779 A JP2023014779 A JP 2023014779A JP 2021118933 A JP2021118933 A JP 2021118933A JP 2021118933 A JP2021118933 A JP 2021118933A JP 2023014779 A JP2023014779 A JP 2023014779A
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pipe
resin
pipeline
impregnated
wall
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久子 横島
Hisako Yokoshima
砂妃 横島
Saki Yokoshima
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Yokoshima and Co
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Abstract

【課題】運搬が容易な更生管構造体と、該更生管構造体を用いて地上にバイパス管を設けないでも施工できる管更生工法を提供する。【解決手段】本発明による更生管構造体は、管路の内壁と隙間を有した状態で管路の内部に配置された内面材と、管路の内壁と内面材との間に配置した複数の樹脂含浸チューブを加圧して硬化させて形成した現場硬化管と、を備えている。【選択図】図２[Problem] To provide an easily transportable rehabilitating pipe structure and a pipe rehabilitation method that can be carried out using the rehabilitating pipe structure without installing a bypass pipe on the ground. [Solution] The rehabilitating pipe structure according to the present invention comprises an inner surface material that is placed inside the pipeline with a gap between it and the inner wall of the pipeline, and a field cured pipe that is formed by pressurizing and curing a plurality of resin-impregnated tubes that are placed between the inner wall of the pipeline and the inner surface material. [Selected Figure] Figure 2

Description

本発明は更生管構造体及び管更生工法に関し、より詳細には、老朽管路を更生する際、地上のバイパス管の配備が不要にできる更生管構造体及び管更生工法に関する。 TECHNICAL FIELD The present invention relates to a rehabilitation pipe structure and a pipe rehabilitation method, and more particularly to a rehabilitation pipe structure and a pipe rehabilitation method that can eliminate the need for a bypass pipe on the ground when rehabilitating an aged pipeline.

従来は、特許文献１に示すような管路補修工法を用いて、下水管、工業用水路及び農業用水路等の老朽管路の更生を行なっていた。多くの更生工法の中でも、樹脂含浸チューブを用いた更生工法は、老朽管内壁に更生管が張り付いた状態で更生管が形成されるため、仕上がり内径が大きく確保され、耐薬品性にも優れるため、広く採用されている。 Conventionally, deteriorated pipelines such as sewage pipes, industrial waterways and agricultural waterways have been rehabilitated using a pipeline repairing method as disclosed in Patent Document 1. Among many rehabilitation methods, the method using resin-impregnated tubes forms the rehabilitation pipe in a state where the rehabilitation pipe is attached to the inner wall of the old pipe, ensuring a large finished inner diameter and excellent chemical resistance. Therefore, it is widely adopted.

図１に示すように、従来の樹脂含侵チューブを用いた管更生工法は、下水管１を流れる供用水１９を完全にストップさせ、老朽管路２の管更生区間１８をドライにして施工する必要があり、中通し止水プラグ１７を設置し、供用水１９が、マンホール５からポンプ４で汲み上げられ、地上バイパス管３を通してバイパスさせ、送り先のマンホール５に排出していた。この場合、地上バイパス管３は、線路や道路がある場合には横切ることができなかった。また、更生材の運搬には限度があり、径が１０００ｍｍ以上で、長い樹脂含侵チューブの場合は、更生材の重量が１０トンを超えることがあり、運搬に困難を要した。 As shown in FIG. 1, the pipe rehabilitation method using the conventional resin-impregnated tube completely stops the service water 19 flowing through the sewage pipe 1, and the pipe rehabilitation section 18 of the aged pipeline 2 is dried. When necessary, a water cutoff plug 17 is installed, and the service water 19 is pumped up from the manhole 5 by the pump 4, bypassed through the ground bypass pipe 3, and discharged to the destination manhole 5. In this case, the above ground bypass pipe 3 could not cross if there were railroad tracks or roads. In addition, there is a limit to the transportation of the rehabilitating material. In the case of a long resin-impregnated tube with a diameter of 1000 mm or more, the rehabilitating material may weigh more than 10 tons, making transportation difficult.

特開平４－３３６２２９号公報JP-A-4-336229

本発明の目的は、運搬が容易な更生管構造体と、該更生管構造体を用いて地上にバイパス管を設けないでも施工できる管更生工法を提供することにある。 An object of the present invention is to provide a rehabilitating pipe structure that can be easily transported, and a pipe rehabilitating construction method that can be carried out using the rehabilitating pipe structure without installing a bypass pipe on the ground.

本発明による更生管構造体は、管路の内壁と隙間を有した状態で管路の内部に配置された内面材と、前記管路の内壁と前記内面材との間に配置した複数の樹脂含浸チューブを加圧して硬化させて形成した現場硬化管と、を備えていることを特徴とする。 The rehabilitating pipe structure according to the present invention comprises an inner surface material arranged inside a pipeline with a gap from the inner wall of the pipeline, and a plurality of resins arranged between the inner wall of the pipeline and the inner surface material. a hard-in-place tube formed by pressurizing and hardening the impregnated tube.

前記管路の内壁と前記現場硬化管との間に管状シートが配置されていることを特徴とする請求項１に記載の更生管構造体。 2. A rehabilitating pipe structure according to claim 1, wherein a tubular sheet is disposed between the inner wall of said pipeline and said hard-in-place pipe.

前記現場硬化管は、前記管路の内壁の全周にわたって並んだ状態で設けられていることを特徴とする。 The in-situ hardening pipes are arranged along the entire circumference of the inner wall of the pipeline.

前記内面材と前記現場硬化管との間に液状の硬化性樹脂が充填されていることを特徴とする。 A liquid hardening resin is filled between the inner surface member and the in-situ hardening tube.

本発明による管更生工法は、管路の内壁と隙間を有した状態で内面材を管路の内部に配置し、前記管路の内壁と前記内面材との間に複数の樹脂含浸チューブを配置した後、前記樹脂含浸チューブを加圧して硬化させて現場硬化管とすることを特徴とする。 In the pipe rehabilitation method according to the present invention, an inner surface material is arranged inside a pipeline with a gap between it and the inner wall of the pipeline, and a plurality of resin-impregnated tubes are arranged between the inner wall of the pipeline and the inner surface material. After that, the resin-impregnated tube is pressurized and cured to form an in-situ cured tube.

前記内面材は繊維強化プラスチックのセグメントを組み立てることにより前記管路の内部に配置されることを特徴とする。 The inner surface member is arranged inside the pipeline by assembling fiber-reinforced plastic segments.

前記内面材には、前記樹脂含浸チューブを反転させるための反転ガイド口を設けていることを特徴とする。 The inner surface member is provided with a reversing guide opening for reversing the resin-impregnated tube.

前記樹脂含浸チューブの内部に、牽引ガイドロープを配備したことを特徴とする。 A traction guide rope is provided inside the resin-impregnated tube.

本発明による更生管構造体によれば、管路の内壁と隙間を有した状態で管路の内部に内面材を設けたので、管路の内壁と内面材との間に小径の複数の樹脂含浸チューブを配置できる。樹脂含浸チューブは小径のものを使用できるので、軽量で運搬も容易である。 According to the rehabilitating pipe structure according to the present invention, since the inner surface material is provided inside the pipeline while having a gap with the inner wall of the pipeline, a plurality of resin particles having a small diameter are formed between the inner wall and the inner surface material of the pipeline. An impregnated tube can be placed. Since a resin-impregnated tube with a small diameter can be used, it is lightweight and easy to transport.

管路の内壁と現場硬化管との間に管状シートを配置したので、樹脂含浸チューブだけではなく、老朽管内壁のヒビや割れからの地下水の侵入による硬化不良をより完全に塞ぐことができる。 Since the tubular sheet is arranged between the inner wall of the pipeline and the in-situ hardening tube, it is possible to more completely block not only the resin-impregnated tube but also the hardening failure due to the intrusion of groundwater through cracks and cracks in the old pipe inner wall.

樹脂含浸チューブを硬化させた現場硬化管が、管路の内壁の全周にわたって並んだ状態で配置されるので、厚肉で外圧に対し堅固な更生管にできる。 Since the in-situ hardened tubes obtained by hardening the resin-impregnated tubes are arranged along the entire circumference of the inner wall of the pipeline, the rehabilitated tubes can be made thick and strong against external pressure.

内面材と現場硬化管との間に液状の硬化性樹脂を充填したので、隙間が埋まって、堅固な更生管にできる。 Since the liquid hardening resin is filled between the inner surface material and the in-situ hardening pipe, the gap is filled and a strong rehabilitating pipe can be obtained.

本発明による管更生工法によれば、管路の内壁と隙間を有した状態で内面材を管路の内部に配置し、管路の内壁と前記内面材との間に複数の樹脂含浸チューブを配置した後、樹脂含浸チューブを加圧して硬化させて現場硬化管としたので、複数の小径の樹脂含浸チューブを使用でき、運搬が容易にできる。また、厚肉で外圧に対し堅固な更生管にできる。 According to the pipe rehabilitation method according to the present invention, the inner surface material is arranged inside the pipeline with a gap between it and the inner wall of the pipeline, and a plurality of resin-impregnated tubes are placed between the inner wall of the pipeline and the inner surface material. After placement, the resin-impregnated tube is pressurized and cured to form an in-situ cured tube, so that a plurality of small-diameter resin-impregnated tubes can be used and can be easily transported. In addition, the rehabilitated pipe can be made thick and strong against external pressure.

内面材は繊維強化プラスチックのセグメントを組み立てるので、運搬が容易にできる。セグメントは、短管をいくつかの部材に分けたものであるから、マンホールから管内にも投入が容易である。 The inner surface material is made up of fiber-reinforced plastic segments, making it easy to transport. Since the segment is obtained by dividing a short pipe into several members, it can be easily thrown into the pipe from a manhole.

内面材には、反転ガイド口を設けたので、最終的な形態において、樹脂含浸チューブの両端部分を内面材の反転ガイド口に通し固定しておくことで樹脂含浸チューブを円周方向に整列させ配置することができる。 In the final form, the resin-impregnated tubes are aligned in the circumferential direction by passing both ends of the resin-impregnated tubes through the reversal guide ports of the inner surface material and fixing them. can be placed.

樹脂含浸チューブの内部に、牽引ガイドロープをあらかじめ配備したので、ロープと連結させ牽引することにより樹脂含浸チューブを内面材の反転ガイド口に導き、内面材外周部に１本ずつ整列させ反転挿入することができる。 A traction guide rope is provided inside the resin-impregnated tube in advance, so by connecting it to the rope and pulling it, the resin-impregnated tube is guided to the reversal guide port of the inner surface material, and is aligned and inserted one by one on the outer periphery of the inner surface material. be able to.

従来の地上バイパス管の説明図である。It is explanatory drawing of the conventional ground bypass pipe. 本発明の実施例で、小径の樹脂含浸チューブの反転挿入の状況を示す図である。FIG. 4 is a diagram showing a state of reverse insertion of a small-diameter resin-impregnated tube in an embodiment of the present invention; 図２の樹脂含浸チューブの外観を示す略図である。3 is a schematic diagram showing the appearance of the resin-impregnated tube of FIG. 2. FIG. 図２の樹脂含浸チューブの硬化状況を示す図である。FIG. 3 is a diagram showing a curing state of the resin-impregnated tube of FIG. 2; 繊維強化プラスチックのセグメントの平面図である。1 is a plan view of a segment of fiber-reinforced plastic; FIG. 図５に示すセグメントのＡ－Ａ断面図である。FIG. 6 is a cross-sectional view of the segment shown in FIG. 5 taken along the line AA; 内面材の組み立て斜視図である。It is an assembly perspective view of an inner surface material. 更生管隙間への硬化性樹脂の充填状況を示す図である。It is a figure which shows the filling condition of hardening resin to the rehabilitation pipe clearance gap. 完成した更生管の構造を示す断面図である。FIG. 4 is a cross-sectional view showing the structure of a completed rehabilitated pipe; 完成した更生管の一部を示す部分断面図である。FIG. 4 is a partial cross-sectional view showing part of the completed rehabilitating pipe.

添付の図２～１０を参照して、本発明による更生管構造体及び管更生工法を説明する。 A pipe rehabilitation structure and pipe rehabilitation method according to the present invention will be described with reference to the attached FIGS.

［内面材］
管路内に設置される内面材２６は、本発明の更生管構造体の最内部に配置される部材である。形状は、円形又は非円形の形状で、ほぼ既設老朽管の内面形状と同一の形状である。寸法は、少なくとも既設老朽管と間が１５ｍｍ以上、口径でいうと３０ｍｍ以上の隙間を全周に設けるように内面材２６の寸法が設定される。内面材２６は、円形の場合、プラスチック板をスパイラル状に巻き付けたスパイラル巻き管が使用できる。あるいは、ＦＲＰセグメントをボルト・ナットで固定したセグメントライニング管が使用できる。図５と図６に示すように、ＦＲＰのセグメント２６ａの固定には、横方向ボルト・ナット穴９と、長さ方向ボルト・ナット穴１０にボルトを通しナットで固定する。図７に示すように、複数のＦＲＰのセグメントを連結して、短管を形成し、さらに長さ方向に短管を連結して長尺な管状の内面材２６を形成する。ロープ２５は、ロープ連結フック２８で長尺に連結される。図７では、反転ガイド口２７の間隔は、図８より粗い間隔で描いている。ＦＲＰ（Ｆｉｂｅｒ Ｒｅｉｎｆｏｒｃｅｄ Ｐｌａｓｔｉｃｓ）は、ガラス繊維などで強度を高くした繊維強化プラスチックである。 [Inner material]
The inner surface member 26 installed in the pipeline is the innermost member of the rehabilitating pipe structure of the present invention. The shape is circular or non-circular, and is substantially the same as the inner surface shape of the existing deteriorated pipe. The dimensions of the inner surface member 26 are set so that a gap of at least 15 mm or more, in terms of diameter, of 30 mm or more is provided around the entire periphery with respect to the existing deteriorated pipe. When the inner surface member 26 is circular, a spirally wound tube obtained by spirally winding a plastic plate can be used. Alternatively, a segment lining pipe in which FRP segments are fixed with bolts and nuts can be used. As shown in FIGS. 5 and 6, the FRP segment 26a is fixed by passing bolts through the lateral bolt/nut hole 9 and the longitudinal bolt/nut hole 10 and fixing with nuts. As shown in FIG. 7, a plurality of FRP segments are connected to form short pipes, and the short pipes are further connected in the longitudinal direction to form a long tubular inner surface member 26 . The rope 25 is long and connected with a rope connecting hook 28 . In FIG. 7, the intervals between the reversing guide openings 27 are drawn at coarser intervals than in FIG. FRP (Fiber Reinforced Plastics) is a fiber-reinforced plastic whose strength is increased with glass fiber or the like.

［内面材の設置］
管内には内面材２６を設置する。その場合、供用水１９を止める必要はない。供用水１９がある場合には、内面材２６の内部を流しながら設置する。内面材２６を管路内に設置する前に、管路内に管路とほぼ同寸法の管状シート２９を配置してもよい。管状シート２９は、厚さが１．０～６．０ｍｍのポリエステルフェルトを管状に加工したもので、外表面がプラスチックフィルム２３で覆われた部材を使用する。プラスチックフィルム２３が内面となるように管路内に反転挿入される。事前に反転しておき、管路内へは引き込み挿入されることもある。この管状シート２９の設置は、老朽管の耐震性の向上と防水対策を目的に行われる。管状シート２９の全長に小径のチューブを複数設定し、チューブ内を加圧することにより内面材２６の位置を制御してもよい。また、管状シート２９の外部に設けたチューブから、既設老朽管壁と管状シート２９の隙間に充填材を充填してもよい。 [Installation of inner material]
An inner surface member 26 is installed in the pipe. In that case, it is not necessary to stop the service water 19 . When there is service water 19, the inside of the inner surface member 26 is installed while flowing. A tubular sheet 29 having approximately the same dimensions as the pipeline may be placed in the pipeline before the inner surface member 26 is installed in the pipeline. The tubular sheet 29 is made by processing a polyester felt having a thickness of 1.0 to 6.0 mm into a tubular shape, and uses a member whose outer surface is covered with the plastic film 23 . It is reversed and inserted into the pipeline so that the plastic film 23 becomes the inner surface. In some cases, the tube is inverted in advance and pulled into the duct. The installation of this tubular sheet 29 is performed for the purpose of improving the earthquake resistance of the old pipe and taking measures against waterproofing. A plurality of small-diameter tubes may be provided along the entire length of the tubular sheet 29, and the position of the inner surface member 26 may be controlled by pressurizing the inside of the tubes. Further, the gap between the existing deteriorated pipe wall and the tubular sheet 29 may be filled with a filler from a tube provided outside the tubular sheet 29 .

［樹脂含浸チューブ］
樹脂含浸チューブ７は、厚さが１．０～６．０ｍｍの管状樹脂吸着材２４の外表面をプラスチックフィルム２３で気密的にコーティングした管状部材である。樹脂含浸チューブ７を図３に示す。プラスチックフィルム２３は、ポリエチレン又はポリエチレン／ポリアミド複合フィルムを使用できる。樹脂吸着材は、ポリエステルフェルト又はグラスファイバー複合ポリエステル等が主に使用される。口径は、φ２０～φ２００ｍｍを標準としている。樹脂吸着材には、不飽和ポリエステル・ビニールエステルあるいはエポキシ樹脂等の液状硬化性樹脂３１が含浸されている。用途によっては、水中硬化型の樹脂としてもよい。このようにして樹脂含浸チューブ７が製作され、現地には冷却された状態で運搬される。そして、この樹脂含浸チューブ７は、硬化後は現場硬化管３０（ＣＩＰＰと称す）となる。 [Resin impregnated tube]
The resin-impregnated tube 7 is a tubular member obtained by airtightly coating the outer surface of a tubular resin adsorbent 24 with a thickness of 1.0 to 6.0 mm with a plastic film 23 . A resin-impregnated tube 7 is shown in FIG. The plastic film 23 can be polyethylene or a polyethylene/polyamide composite film. As the resin adsorbent, polyester felt, glass fiber composite polyester, or the like is mainly used. The standard diameter is φ20 to φ200mm. The resin adsorbent is impregnated with a liquid curable resin 31 such as unsaturated polyester/vinyl ester or epoxy resin. Depending on the application, it may be a water-curable resin. Thus, the resin-impregnated tube 7 is manufactured and transported to the site in a cooled state. After curing, the resin-impregnated tube 7 becomes an in-situ curing tube 30 (referred to as CIPP).

［樹脂含浸チューブの設置］
樹脂含浸チューブ７を加圧容器（図示せず）に収納し、加圧容器の反転ノズルに一端を折り返し気密的に取り付ける。図２に示すように、加圧容器内を水圧又は空気圧で加圧し、樹脂含浸チューブ７を反転させて配備する。反転圧力は、０．０３～０．３Ｍｐａで反転する。管路内壁と内面材２６の隙間に順次反転挿入し、図８に示すように、管路の全周にわたりハチの巣状に挿入する。図３に示すように、樹脂含浸チューブ７内には、牽引ガイドロープ２１を配備してもよい。牽引ガイドロープ２１は、径が３．０～１０ｍｍのプラスチックロープ又はシートベルト状のベルトでもよい。この牽引ガイドロープ２１の使用目的は、所定の位置に樹脂含浸チューブ７を配置させることを目的とする。内面材２６に樹脂含浸チューブ７の反転ガイド口２７を設けておき、内面材２６の設置と共に、反転ガイド口２７にロープ２５（図７参照）を通線しておく。そして、樹脂含浸チューブ７内に配備された牽引ガイドロープ２１と連結させ、樹脂含浸チューブ７の反転時に牽引して反転の進行をガイドする。樹脂含浸チューブ７の反転をガイドすることにより、管路内壁と内面材２６の間に複数の樹脂含浸チューブ７を整列させ配備することが可能になり、既設老朽管路２の壁面と内面材２６の隙間に全周にわたり整列したハチの巣状のＣＩＰＰを形成することができる。 [Installation of resin impregnated tube]
The resin-impregnated tube 7 is housed in a pressurized container (not shown), one end of which is folded back and airtightly attached to a reversing nozzle of the pressurized container. As shown in FIG. 2, the inside of the pressurized container is pressurized with water pressure or air pressure, and the resin-impregnated tube 7 is inverted and arranged. The reversing pressure is 0.03-0.3Mpa. They are sequentially inverted and inserted into the gap between the inner wall of the pipeline and the inner surface member 26, and as shown in FIG. As shown in FIG. 3 , a traction guide rope 21 may be provided inside the resin-impregnated tube 7 . The traction guide rope 21 may be a plastic rope or seat belt-like belt with a diameter of 3.0 to 10 mm. The purpose of using the traction guide rope 21 is to arrange the resin-impregnated tube 7 at a predetermined position. A reversal guide opening 27 for the resin-impregnated tube 7 is provided in the inner surface member 26, and the rope 25 (see FIG. 7) is passed through the reversal guide opening 27 when the inner surface member 26 is installed. Then, it is connected to a traction guide rope 21 arranged inside the resin-impregnated tube 7, and is pulled when the resin-impregnated tube 7 is reversed to guide the progress of the reverse. By guiding the reversal of the resin-impregnated tube 7, it becomes possible to align and deploy a plurality of resin-impregnated tubes 7 between the inner wall of the pipeline and the inner surface material 26, and the wall surface of the existing deteriorated pipeline 2 and the inner surface material 26. It is possible to form a honeycomb-like CIPP aligned over the entire circumference in the gap between the two.

［樹脂含浸チューブの硬化］
樹脂含浸チューブ７は、管路と内面材２６の間に反転挿入された後、０．０３～３．００Ｍｐａの圧力で加圧する。できるだけ内面材２６が中心に位置するようにそれぞれ樹脂含浸チューブ７の圧力をコントロールする。図４に示すように、樹脂含浸チューブ７は、温水循環式で加熱され硬化し現場硬化管３０（ＣＩＰＰと称す）となる。樹脂含浸チューブ７は、１本ずつ順次硬化してもよく、複数を一度に硬化させてもよい。樹脂含浸チューブ７を所定の位置に反転挿入し、その樹脂含浸チューブ７を硬化させた後、次の所定の位置に樹脂含浸チューブ７を反転挿入し、硬化させる工程を順次行ない、最終的に全周にＣＩＰＰを形成する。温水の循環は、図４に示すように、温水槽１６、温水ポンプ１５、ボイラー１４、圧力計８及びバルブ１３からなる循環系で行なわれる。ボイラー１４からの温水は、温水ホース１１で樹脂含浸チューブ７に接続され、樹脂含浸チューブ７を出た温水は、戻り温水ホース１２で温水槽１３に戻る。 [Curing of resin-impregnated tube]
After the resin-impregnated tube 7 is reversely inserted between the conduit and the inner surface member 26, it is pressurized with a pressure of 0.03 to 3.00 Mpa. The pressure of each resin-impregnated tube 7 is controlled so that the inner surface member 26 is positioned as centrally as possible. As shown in FIG. 4, the resin-impregnated tube 7 is heated and hardened in a warm water circulation system to become an in-situ hardening tube 30 (referred to as CIPP). The resin-impregnated tubes 7 may be cured one by one, or a plurality of them may be cured at once. After the resin-impregnated tube 7 is reversely inserted to a predetermined position and cured, the resin-impregnated tube 7 is reversely inserted to the next predetermined position and cured. CIPP is formed around the perimeter. Hot water is circulated in a circulation system comprising a hot water tank 16, a hot water pump 15, a boiler 14, a pressure gauge 8 and a valve 13, as shown in FIG. Hot water from the boiler 14 is connected to the resin-impregnated tube 7 via a hot water hose 11 , and hot water exiting the resin-impregnated tube 7 is returned to the hot water tank 13 via a return hot water hose 12 .

［充填］
充填材として用いるのは、樹脂含浸チューブ７に含浸した同一の硬化性樹脂３１が好ましい。図８に示すように、更生管への樹脂充填は、複数の樹脂含浸チューブ７の反転挿入部を数カ所空けておき、全周にわたりほぼＣＩＰＰの形成が完了すると、空けておいた反転ガイド口２７を樹脂挿入口３２として充填を行ない、充填が完了した後、その反転ガイド口２７より樹脂含浸チューブ７を反転挿入させる。完成品の断面図を図９と図１０に示す。 [filling]
The same curable resin 31 impregnated in the resin-impregnated tube 7 is preferably used as the filler. As shown in FIG. 8, resin is filled into the rehabilitating pipe by leaving several reversing insertion portions of the plurality of resin-impregnated tubes 7 vacant. is used as the resin insertion port 32 , and after the filling is completed, the resin-impregnated tube 7 is reversely inserted through the reversal guide port 27 . Cross-sectional views of the finished product are shown in FIGS. 9 and 10. FIG.

本発明は、更生管構造体はセグメントからなるので運搬が容易であり、更生管構造体を使用することで地上バイパス管の設置が不要になるので、管更生工法として好適である。 In the present invention, since the rehabilitation pipe structure consists of segments, it is easy to transport, and the use of the rehabilitation pipe structure eliminates the need to install aboveground bypass pipes, so it is suitable as a pipe rehabilitation method.

１ 下水管
２ 老朽管路
３ 地上バイパス管
４ ポンプ
５ マンホール
７ 樹脂含浸チューブ
８ 圧力計
９ 横方向ボルト・ナット穴
１０ 長さ方向ボルト・ナット穴
１１ 温水ホース
１２ 戻り温水ホース
１３ バルブ
１４ ボイラー
１５ 温水ポンプ
１６ 温水槽
１７ 中通し止水プラグ
１８ 管更生区間
１９ 供用水
２１ 牽引ガイドロープ
２３ プラスチックフィルム
２４ 管状樹脂吸着材
２５ ロープ
２６ セグメント式の内面材
２６ａ セグメント
２７ 反転ガイド口
２８ ロープ連結フック
２９ 管状シート
３０ 現場硬化管（ＣＩＰＰ）
３１ 硬化性樹脂
３２ 樹脂充填口 REFERENCE SIGNS LIST 1 sewage pipe 2 aged pipeline 3 aboveground bypass pipe 4 pump 5 manhole 7 resin-impregnated tube 8 pressure gauge 9 lateral bolt/nut hole 10 longitudinal bolt/nut hole 11 hot water hose 12 return hot water hose 13 valve 14 boiler 15 hot water Pump 16 Hot water tank 17 Water cutoff plug 18 Pipe rehabilitation section 19 Service water 21 Traction guide rope 23 Plastic film 24 Tubular resin adsorbent 25 Rope 26 Segment type inner surface material 26a Segment 27 Reversing guide port 28 Rope connection hook 29 Tubular sheet 30 Curing-In-Place Pipe (CIPP)
31 curable resin 32 resin filling port

Claims (8)

管路の内壁と隙間を有した状態で管路の内部に配置された内面材と、
前記管路の内壁と前記内面材との間に配置した複数の樹脂含浸チューブを加圧して硬化させて形成した現場硬化管と、を備えていることを特徴とする更生管構造体。 an inner surface member disposed inside the pipeline with a gap between it and the inner wall of the pipeline;
A rehabilitating pipe structure, comprising: a field hardening pipe formed by pressurizing and hardening a plurality of resin-impregnated tubes arranged between the inner wall of the pipe and the inner surface member. 前記管路の内壁と前記現場硬化管との間に管状シートが配置されていることを特徴とする請求項１に記載の更生管構造体。 2. A rehabilitating pipe structure according to claim 1, wherein a tubular sheet is disposed between the inner wall of said pipeline and said hard-in-place pipe. 前記現場硬化管は、前記管路の内壁の全周にわたって並んだ状態で設けられていることを特徴とする請求項１または２に記載の更生管構造体。 3. The rehabilitating pipe structure according to claim 1, wherein the in-situ hardening pipes are provided in a state of being arranged along the entire circumference of the inner wall of the pipe. 前記内面材と前記現場硬化管との間に液状の硬化性樹脂が充填されていることを特徴とする請求項１乃至３のいずれか１項に記載の更生管構造体。 The rehabilitating pipe structure according to any one of claims 1 to 3, wherein a liquid curable resin is filled between the inner surface material and the in-situ hardening pipe. 管路の内壁と隙間を有した状態で内面材を管路の内部に配置し、前記管路の内壁と前記内面材との間に複数の樹脂含浸チューブを配置した後、前記樹脂含浸チューブを加圧して硬化させて現場硬化管とすることを特徴とする管更生工法。 An inner surface material is placed inside the pipeline with a gap between it and the inner wall of the pipeline, and after a plurality of resin-impregnated tubes are placed between the inner wall of the pipeline and the inner surface material, the resin-impregnated tubes are placed. A pipe rehabilitation method characterized by pressurizing and hardening to form an in-situ hardened pipe. 前記内面材は繊維強化プラスチックのセグメントを組み立てることにより前記管路の内部に配置されることを特徴とする請求項５記載の管更生工法。 6. The pipe rehabilitation method according to claim 5, wherein the inner surface material is arranged inside the pipeline by assembling segments of fiber-reinforced plastic. 前記内面材には、前記樹脂含浸チューブを反転させるための反転ガイド口を設けていることを特徴とする請求項５または６に記載の管更生工法。 7. The pipe rehabilitation method according to claim 5, wherein the inner surface member is provided with a reversing guide opening for reversing the resin-impregnated tube. 前記樹脂含浸チューブの内部に、牽引ガイドロープを配備したことを特徴とする請求項５または６に記載の管更生工法。
The pipe rehabilitation method according to claim 5 or 6, wherein a traction guide rope is provided inside the resin-impregnated tube.
JP2021118933A 2021-07-19 2021-07-19 Rehabilitation pipe structure and pipe rehabilitation method Pending JP2023014779A (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0693609A (en) * 1992-07-22 1994-04-05 Shonan Gosei Jushi Seisakusho:Kk How to build a structure
JPH06285982A (en) * 1993-04-01 1994-10-11 Yokoshima:Kk Pipe lining material and method for repairing pipe
JPH1120020A (en) * 1997-07-01 1999-01-26 Shonan Gosei Jushi Seisakusho:Kk Branch pipe lining material and method for lining branch pipe using it
JP2001328170A (en) * 2000-05-22 2001-11-27 Kajima Corp Pipe component for existing pipe lining and existing pipe lining method using the same
JP2004148515A (en) * 2002-10-28 2004-05-27 Shonan Plastic Mfg Co Ltd Pipe lining method
JP2005325593A (en) * 2004-05-14 2005-11-24 Shonan Plastic Mfg Co Ltd Existing pipe reclaiming segment member and reclamation pipe using the segment member
JP2006001256A (en) * 2004-06-21 2006-01-05 Yokoshima & Co Inserting method of pipe lining material into pipe line
JP2009133477A (en) * 2007-11-02 2009-06-18 Sekisui Chem Co Ltd Method for regenerating existing pipe

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0693609A (en) * 1992-07-22 1994-04-05 Shonan Gosei Jushi Seisakusho:Kk How to build a structure
JPH06285982A (en) * 1993-04-01 1994-10-11 Yokoshima:Kk Pipe lining material and method for repairing pipe
JPH1120020A (en) * 1997-07-01 1999-01-26 Shonan Gosei Jushi Seisakusho:Kk Branch pipe lining material and method for lining branch pipe using it
JP2001328170A (en) * 2000-05-22 2001-11-27 Kajima Corp Pipe component for existing pipe lining and existing pipe lining method using the same
JP2004148515A (en) * 2002-10-28 2004-05-27 Shonan Plastic Mfg Co Ltd Pipe lining method
JP2005325593A (en) * 2004-05-14 2005-11-24 Shonan Plastic Mfg Co Ltd Existing pipe reclaiming segment member and reclamation pipe using the segment member
JP2006001256A (en) * 2004-06-21 2006-01-05 Yokoshima & Co Inserting method of pipe lining material into pipe line
JP2009133477A (en) * 2007-11-02 2009-06-18 Sekisui Chem Co Ltd Method for regenerating existing pipe

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