JP2013189014A - Method of repairing existing pipe - Google Patents

Method of repairing existing pipe Download PDF

Info

Publication number
JP2013189014A
JP2013189014A JP2013080227A JP2013080227A JP2013189014A JP 2013189014 A JP2013189014 A JP 2013189014A JP 2013080227 A JP2013080227 A JP 2013080227A JP 2013080227 A JP2013080227 A JP 2013080227A JP 2013189014 A JP2013189014 A JP 2013189014A
Authority
JP
Japan
Prior art keywords
pipe
existing pipe
cylindrical
existing
rehabilitation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2013080227A
Other languages
Japanese (ja)
Inventor
Nobuyoshi Ooka
伸吉 大岡
Mitsuyoshi Cho
満良 張
Original Assignee
Yoshika Engineering Kk
吉佳エンジニアリング株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yoshika Engineering Kk, 吉佳エンジニアリング株式会社 filed Critical Yoshika Engineering Kk
Priority to JP2013080227A priority Critical patent/JP2013189014A/en
Publication of JP2013189014A publication Critical patent/JP2013189014A/en
Pending legal-status Critical Current

Links

Images

Abstract

PROBLEM TO BE SOLVED: To obtain a method of repairing an existing pipe, configured to simply and reliably eliminate a gap between an existing pipe to be repaired and a rehabilitated pipe and to ensure stable and proper installation state of the rehabilitated pipe in the existing pipe.SOLUTION: A method includes at least an intermediate member installation step of placing a deformable cylindrical intermediate member 12 to be deformed by pushing force so as to fill up a gap between a rehabilitated pipe (14 and 20) and an existing pipe 10 before a step of introducing the rehabilitated pipe in the existing pipe. The gap between the rehabilitated pipe (14 and 20) and the existing pipe 10 is filled with the cylindrical intermediate member 12 to reliably and simply eliminate the gap. The rehabilitated pipe can be installed stably without a void.

Description

本発明は、既設管補修工法、特に補修対象の既設管内に新たな更生管を形成することによって当該既設管の補修を行う既設管補修工法に関する。   The present invention relates to an existing pipe repair method, and more particularly to an existing pipe repair method for repairing an existing pipe by forming a new rehabilitation pipe in the existing pipe to be repaired.
一般に、下水管渠などの地中に埋設される管については、設置からの年数の経過による様々な変形、例えば、クラックの発生、ズレによる段差の発生、径の変化などが生じることは不可避であり、そのため、下水管の流下力が低下したり、管内への地下水の浸入による下水処理量が増えたりする問題が起こっている。また、特に変形が生じなくても老朽化に伴って、事故の未然防止のために交換が必要になる等の事情から、既設管は所定の時期に何らかの補修が必要となるのが現状である。   In general, for pipes buried in the ground such as sewer pipes, it is inevitable that various deformations will occur over the years since installation, such as cracks, steps due to misalignment, diameter changes, etc. For this reason, there are problems that the flow force of the sewage pipe decreases and the amount of treated sewage increases due to the ingress of groundwater into the pipe. In addition, even if there is no particular deformation, the existing pipes need to be repaired at certain times due to circumstances such as the need for replacement in order to prevent accidents. .
現在、下水管路再生補修技術としては、地上からの作業により地面を開削し、老朽化した管路を地上から掘り出して新管を入れる作業方法、非開削で管の内部から管内面を補修する作業方法、更に、非開削で新管を入れる方法などが採用されている。   Currently, the sewage pipe regeneration repair technique is to excavate the ground by work from the ground, excavate the old pipe from the ground and insert a new pipe, repair the inner surface of the pipe from inside the pipe without digging The work method and the method of putting a new pipe in non-open cut are adopted.
この非開削で新管を挿入する補修工法としては、通称、鞘管工法と呼ばれ、補修対象の既設管の中に新たな管(更生管)を設置して管を補修、更生する工法が知られている。この工法では、例えば、工場にて製造した既製のコンクリート製更生管ピースを順次、既設管内に送り挿入して行く方法、すなわち、更生管ピースを繋ぎながら継ぎ足しつつ既設管全長にわたって更生管を設置することが行われる。この場合、更生管と既設管との間の隙間、すなわち、更生管の外周壁と既設管の内周壁との間には、完成時にこの隙間を埋めるために硬化性充填材が充填されて行くのが通常である。   The repair method for inserting a new pipe by this non-opening method is commonly called a sheath pipe method. There is a method of repairing and rehabilitating a pipe by installing a new pipe (rehabilitated pipe) in the existing pipe to be repaired. Are known. In this construction method, for example, a method of sequentially sending and inserting ready-made concrete rehabilitation pipe pieces manufactured in a factory into the existing pipe, that is, installing the rehabilitation pipe over the entire length of the existing pipe while connecting the rehabilitation pipe pieces. Is done. In this case, a gap between the rehabilitated pipe and the existing pipe, that is, between the outer peripheral wall of the rehabilitated pipe and the inner peripheral wall of the existing pipe is filled with a curable filler to fill this gap when completed. It is normal.
また、他の方法としては、補修対象の既設管にガラス繊維等によって形成した芯材に未硬化樹脂を含浸させて出来た工場生産の硬化性の管状ライニング材を既設の下水道管に導入して、加圧空気等を用いて拡径し、既設管に密着させた状態で、硬化させて既設管中に新管を形成する方法なども知られている。   Also, as another method, a factory-produced curable tubular lining material made by impregnating an uncured resin into a core material made of glass fiber or the like in an existing pipe to be repaired is introduced into an existing sewer pipe. Also known is a method of expanding a diameter using pressurized air or the like and curing it to form a new pipe in the existing pipe in a state of being in close contact with the existing pipe.
例えば、特許文献1(特開平6−246830号)や、特許文献2(特開2004−188818号)には、その様な硬化性のライニング管を反転させて、加圧空気や温水によって進行させ、既設管に導入した後、熱や光により硬化させて管の補修を行うライニング工法が開示されている。   For example, in Patent Document 1 (Japanese Patent Application Laid-Open No. 6-246830) and Patent Document 2 (Japanese Patent Application Laid-Open No. 2004-188818), such a curable lining pipe is inverted and advanced by pressurized air or warm water. A lining method for repairing a pipe after being introduced into an existing pipe and then cured by heat or light is disclosed.
特開平6−246830号公報JP-A-6-246830 特開2004−188818号公報JP 2004-188818 A
既製の更生管ピースを順次、補修対象の既設管に挿入し、その更生管と既設管との間の間隙に硬化性充填材を充填する工法の場合、更生管を挿入した後、既設管の管口から又は更生管側に設けた注入口から充填材を送り込むことになる。しかし、間隙はそれ程大きなものではなく、満遍なく硬化性充填材を注入する作業は容易ではなく煩雑なものとなっている。したがって、間隙の一部、特に更生管の上側領域の部分には充填漏れによる空洞の残存が生じやすいという事情もある。   In the case of a construction method in which ready-made rehabilitation pipe pieces are sequentially inserted into the existing pipe to be repaired and a curable filler is filled in the gap between the rehabilitation pipe and the existing pipe, the rehabilitation pipe is inserted, The filler is fed from the inlet or from the inlet provided on the rehabilitation pipe side. However, the gap is not so large, and the operation of uniformly injecting the curable filler is not easy and complicated. Therefore, there is also a situation in which a cavity is likely to remain due to filling leakage in a part of the gap, particularly in the upper region of the rehabilitation pipe.
また、上述の未硬化の管状ライニング材、すなわち、未だ最終形状での硬化の行われていない状態の管状ライニング材の導入とその硬化作業によって更生管を形成する場合、上述のコンクリート製などの既製の更生管ピースを挿入していく場合に比べ、更生管と既設管との間の隙間はより小さいものとすることができる。しかし、最終段階での硬化時に収縮して、既設管との間に隙間ができる恐れもあり、また、硬化性管状ライニング材の挿入時に該硬化性管状ライニング材と既設管の間の隙間に硬化性充填材を送り込みつつ作業を行うことも煩雑且つ困難な作業となり、完全に隙間のない施工を行うことは困難である。   In addition, when the rehabilitated pipe is formed by introducing the above-described uncured tubular lining material, i.e., the tubular lining material that has not yet been cured in the final shape, and the curing operation thereof, a ready-made material such as the above-mentioned concrete is used. The gap between the rehabilitated pipe and the existing pipe can be made smaller than when the rehabilitated pipe piece is inserted. However, there is a possibility that a shrinkage occurs during curing in the final stage, and a gap is formed between the existing pipe, and when the curable tubular lining material is inserted, the gap is cured between the curable tubular lining material and the existing pipe. It is complicated and difficult to carry out the work while feeding the conductive filler, and it is difficult to carry out the construction without any gaps.
この様な、更生管と既設管との間の空洞の残存は、更生管と既設管との完全な一体性を害することとなり、当初の設計通りの強度が得られず、また、漏水や座屈の原因となるおそれもある。   The remaining of the cavity between the rehabilitated pipe and the existing pipe will damage the integrity of the rehabilitated pipe and the existing pipe, and the strength as originally designed cannot be obtained. There is also a risk of bending.
本発明は上記課題に鑑みてなされてものであり、その目的は、補修対象の既設管と更生管との間の間隙を簡単且つ確実になくすことができ、既設管に対する更生管の安定した良好な設置状態を確保することのできる既設管補修工法を提供することにある。   The present invention has been made in view of the above problems, and its purpose is to easily and reliably eliminate the gap between the existing pipe to be repaired and the rehabilitated pipe, and to improve the stability of the rehabilitated pipe with respect to the existing pipe. It is to provide an existing pipe repair method capable of ensuring a proper installation state.
上記課題を解決するため、請求項1に係る既設管補修工法は、
補修対象の既設管内に新たな更生管を導入して前記既設管の補修が行われる既設管補修工法において、前記既設管内への更生管の導入前に、少なくとも押圧力を受けて変形する変形性と、前記既設管と前記更生管との隙間のサイズよりも厚い厚さを有し、前記更生管の導入後において前記更生管と前記既設管との間で押圧されて変形した状態で当該間隙を充満するサイズと、を有する硬化性充填材を含浸させない円筒状中間部材を前記既設管内に設置する中間部材設置工程を含み、前記硬化性充填材非含浸の円筒状中間部材を設置した後に前記更生管を導入することを特徴とする。
In order to solve the above problem, the existing pipe repair method according to claim 1 is:
In the existing pipe repair method in which a new rehabilitation pipe is introduced into the existing pipe to be repaired, and the existing pipe is repaired, the deformability that is deformed by receiving at least a pressing force before introducing the rehabilitation pipe into the existing pipe And a gap thicker than the size of the gap between the existing pipe and the rehabilitated pipe, and after the introduction of the rehabilitated pipe, the gap is pressed and deformed between the rehabilitated pipe and the existing pipe. An intermediate member installation step of installing in the existing pipe a cylindrical intermediate member that is not impregnated with a curable filler having a size that fills, and after the cylindrical intermediate member not impregnated with the curable filler is installed It is characterized by introducing a rehabilitation pipe .
これにより、補修対象の既設管内に更生管が導入された後に、両者の小さい間隙に充填材を注入する煩雑かつ困難な作業を行う必要がなくなる。すなわち、変形性を有する円筒状中間部材が予め導入設置されており、この円筒状中間部材は、更生管が導入された後においては、更生管と既設管との間で押圧された状態となり、当該間隙を充満する。したがって、更生管の導入設置によって、更生管外側面と既設管内側面の間は、中間部材で充たされ、更生管による補修作業が終了する。   Thereby, after the rehabilitation pipe is introduced into the existing pipe to be repaired, it is not necessary to perform a complicated and difficult operation of injecting the filler into the small gap between them. That is, a cylindrical intermediate member having deformability is introduced and installed in advance, and this cylindrical intermediate member is pressed between the rehabilitation pipe and the existing pipe after the rehabilitation pipe is introduced, Fill the gap. Therefore, by introducing and installing the rehabilitation pipe, the space between the outer side of the rehabilitation pipe and the inner side of the existing pipe is filled with the intermediate member, and the repair work using the rehabilitation pipe is completed.
なお、円筒状中間部材は後述するような不織布などの繊維性部材が好適ではあるが、これに限られず、変形性を有する合成樹脂性の防水性に優れる部材を用いることも好適である。また、繊維性部材を用いた場合でも、押圧状態となることで防水性が生じ、更に、既設管の外部から浸入してくる細かい泥粒を含む水によって、その部材の目が埋められ防水性を発揮しうる状況となるので問題なく適用可能である。   The cylindrical intermediate member is preferably a fibrous member such as a non-woven fabric as will be described later, but is not limited thereto, and it is also preferable to use a deformable synthetic resin waterproof member. In addition, even when a fibrous member is used, waterproofness is generated by being in a pressed state, and further, the water of the member is filled with water containing fine mud particles entering from the outside of the existing pipe, so that waterproofness is achieved. Therefore, it can be applied without problems.
更に、この様な構成とすることにより、設置した新たな更生管を再度補修しなければならない状況が生じた場合、上記円筒状中間部材の存在により、その更生管を当初の既設管から抜き取る作業を行うことが従来のものよりも容易なものとなる。内部に新たな更生管を設置して補修する方式では、更生管を設置する毎に管径が小さくなるが、本発明の構成によれば比較的、更生管が抜き取りやすくなることから、この管径の小径化を回避することが可能となる。   Further, when such a configuration causes a situation in which a newly installed rehabilitation pipe must be repaired again, the rehabilitation pipe is removed from the original existing pipe due to the presence of the cylindrical intermediate member. It is easier to perform than the conventional one. In the method of repairing by installing a new rehabilitation pipe inside, the pipe diameter decreases each time the rehabilitation pipe is installed. However, according to the configuration of the present invention, the rehabilitation pipe is relatively easy to pull out. It becomes possible to avoid the diameter reduction.
請求項2に係る既設管補修工法は、請求項1に記載の既設管補修工法において、
前記更生管の導入は、前記既設管内に設置された円筒状中間部材の中に、一体形の硬化性管状ライニング材を挿入し、該挿入した管状ライニング材を拡径して前記円筒状中間部材を前記既設管内側面に押し付けて厚さ方向に変形させ、その押し付け状態で硬化されて行われることを特徴とする。
The existing pipe repair method according to claim 2 is the existing pipe repair method according to claim 1 ,
The rehabilitation pipe is introduced by inserting an integral curable tubular lining material into a cylindrical intermediate member installed in the existing pipe and expanding the diameter of the inserted tubular lining material. Is pressed against the inner side surface of the existing pipe , deformed in the thickness direction, and cured in the pressed state.
この構成は、既製の更生管ピースではなく、未だ最終形状での硬化状態に至っていない管状ライニング材を更生管として用いるものであり、この場合においても、円筒状中間部材により、簡単且つ確実に管状ライニング材と既設管との間の隙間を埋めることができる。すなわち、硬化性の管状ライニング材は、予め挿入されている円筒状中間部材の中に、反転挿入又は引き込み挿入等によって挿入される。そして、この管状ライニング材は拡径され、その外側面で円筒状中間部材を既設管の内側面側に押圧することができる。なお、管状ライニング材の拡径は、既知の技術、例えば加圧空気又は加圧蒸気の導入などにより行うことが可能である。   In this configuration, a tubular lining material that has not yet been cured in the final shape is used as a rehabilitation pipe, not a ready-made rehabilitation pipe piece. The gap between the lining material and the existing pipe can be filled. That is, the curable tubular lining material is inserted into the cylindrical intermediate member inserted in advance by reverse insertion or retraction insertion. And this tubular lining material is diameter-expanded and the cylindrical intermediate member can be pressed on the inner surface side of an existing pipe by the outer surface. The diameter of the tubular lining material can be increased by a known technique such as introduction of pressurized air or pressurized steam.
これにより、円筒状中間部材は、やや押しつぶされた状態となり、確実に既設管と更生管との間の間隙が埋められる。また、円筒状中間部材に硬化性充填材が含浸されている場合には、この押圧により、硬化性充填材が既設管内側面に存在する凹部や亀裂などに浸み込んで行くので、既設管と更生管との一体性はより高いものとなる。   Thereby, the cylindrical intermediate member is in a slightly crushed state, and the gap between the existing pipe and the renovated pipe is surely filled. In addition, when the cylindrical intermediate member is impregnated with a curable filler, this pressing causes the curable filler to soak into recesses or cracks existing on the inner surface of the existing pipe. The unity with the rehabilitation pipe is higher.
請求項に係る既設管補修工法は、請求項に記載の既設管補修工法において、
前記挿入され拡径された硬化性管状ライニング材の硬化作業は、該管状ライニング材の構成材料として光硬化性の材料を用い、これを光照射によって硬化させることにより行うこと特徴とする。
The existing pipe repair method according to claim 3 is the existing pipe repair method according to claim 2 ,
Curing operation of the curable tubular lining material wherein is inserted diameter is a photocurable material used as the material of the tubular lining material, characterized in this that performed by curing by light irradiation.
これにより管状ライニング材の硬化作業が簡単かつ円滑なものとなる。 Thereby , the hardening operation | work of a tubular lining material becomes a simple and smooth thing.
請求項に係る既設管補修工法は、請求項1から3の何れか1項に記載の既設管補修工法において、
前記円筒状中間部材が、不織布等の繊維性部材にて形成されたことを特徴とする。円筒状中間部材は上述の変形性を有すれば足り、種々の部材を用いることができるが、不織布等の繊維性部材を用いることにより変形性と含浸性に優れる円筒状中間部材を準備することが可能となる。
The existing pipe repair method according to claim 4 is the existing pipe repair method according to any one of claims 1 to 3,
The cylindrical intermediate member is formed of a fibrous member such as a nonwoven fabric. It is sufficient that the cylindrical intermediate member has the above-described deformability, and various members can be used. By using a fibrous member such as a nonwoven fabric, a cylindrical intermediate member having excellent deformability and impregnation property is prepared. Is possible.
本発明に係る既設管補修工法によれば、補修対象の既設管と更生管との間の間隙を簡単且つ確実になくすことができる。すなわち、押圧力に対する変形性を有する円筒状中間部材が既設管と更生管との間に設置されることで、確実、簡単に既設管と更生管との間の隙間を埋めることができる。これにより、既設管に対する更生管の安定した良好な設置状態が確保される。したがって、補修後の管の完成度が向上し強度の増加が図られ、既設管補修工事の信頼性が高められる。   According to the existing pipe repairing method according to the present invention, the gap between the existing pipe to be repaired and the rehabilitated pipe can be easily and reliably eliminated. That is, by installing the cylindrical intermediate member having deformability against the pressing force between the existing pipe and the rehabilitation pipe, the gap between the existing pipe and the rehabilitation pipe can be filled surely and easily. Thereby, the stable good installation state of the renovated pipe with respect to the existing pipe is ensured. Therefore, the completeness of the pipe after repair is improved, the strength is increased, and the reliability of the existing pipe repair work is enhanced.
第1実施の形態に係る既設管補修工法における円筒状中間部材の挿入動作についての説明図である。It is explanatory drawing about the insertion operation | movement of the cylindrical intermediate member in the existing pipe repair method concerning 1st Embodiment. 第1の実施の形態に係る既設管補修工法における先頭キャップの設置状態説明図である。It is an installation state explanatory view of the head cap in the existing pipe repair construction method concerning a 1st embodiment. 第1の実施の形態に係る既設管補修工法における更生管ピースの挿入動作説明図である。It is insertion explanatory drawing of the rehabilitation pipe piece in the existing pipe repair construction method which concerns on 1st Embodiment. 第1の実施の形態に係る既設管補修工法における更生管ピースの挿入動作説明図である。It is insertion explanatory drawing of the rehabilitation pipe piece in the existing pipe repair construction method which concerns on 1st Embodiment. 第1の実施の形態に係る既設管補修工法による作業終了状態説明図である。It is work completion | finish state explanatory drawing by the existing pipe repair construction method which concerns on 1st Embodiment. 第2実施の形態に係る既設管補修工法における管状ライニング材挿入動作説明図である。It is tubular lining material insertion operation | movement explanatory drawing in the existing pipe repair method which concerns on 2nd Embodiment. 第2の実施の形態に係る既設管補修工法における管状ライニング材の挿入時の畳み状態の説明図である。It is explanatory drawing of the folding state at the time of insertion of the tubular lining material in the existing pipe repair method which concerns on 2nd Embodiment. 第2の実施の形態に係る既設管補修工法における管状ライニング材の拡径(復元)動作の開始時状態の説明図である。It is explanatory drawing of the state at the time of the start of the diameter expansion (restoration) operation | movement of the tubular lining material in the existing pipe repair method which concerns on 2nd Embodiment. 第2の実施の形態に係る既設管補修工法における管状ライニング材の拡径(復元)動作の終了時状態の説明図である。It is explanatory drawing of the state at the time of completion | finish of the diameter expansion (restoration) operation | movement of the tubular lining material in the existing pipe repair method which concerns on 2nd Embodiment. 第2の実施の形態に係る既設管補修工法による作業終了状態説明図である。It is work completion | finish state explanatory drawing by the existing pipe repair construction method which concerns on 2nd Embodiment. 主として第1の実施の形態に係る既設管補修工法に用いられる先端装置の説明図である。It is explanatory drawing of the front-end | tip apparatus mainly used for the existing pipe repair method which concerns on 1st Embodiment. 第1及び第2の実施の形態に係る既設管補修工法が適用される一例としての下水道の構成説明図である。It is composition explanatory drawing of the sewer as an example to which the existing pipe repair method concerning the 1st and 2nd embodiment is applied.
以下、図面に基づいて本発明の実施の形態について詳細に説明する。図12は、本発明の既設管補修工法が適用される管渠の例を示している。図示のように、所定間隔を置いて設置されたマンホール100と102との間には補修対象の既設管である下水道本管10が配置されている。この下水道本管10を本発明工法を用いて補修する場合を例にして説明する。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 12 shows an example of a pipe rod to which the existing pipe repair method of the present invention is applied. As shown in the drawing, a sewer main 10 that is an existing pipe to be repaired is disposed between manholes 100 and 102 installed at a predetermined interval. The case where this sewer main 10 is repaired using the method of the present invention will be described as an example.
図1から図5は、第1の実施の形態を示しており、既設管内に形成する更生管として予め工場生産した既製の更生管ピースを用いる例を示している。まず、図1(A)に示したように、下水道本管10には、一方のマンホール側から円筒状中間部材12が例えば、引き込み動作により挿入されている。この円筒状中間部材12の挿入は、引き込みに限られず、いわゆる裏返しつつ送り込む既知の反転挿入方法を用いることも可能である。   FIG. 1 to FIG. 5 show the first embodiment, and show an example in which a ready-made regenerated pipe piece produced in advance in a factory is used as a renovated pipe formed in an existing pipe. First, as shown in FIG. 1A, a cylindrical intermediate member 12 is inserted into the sewer main pipe 10 from one manhole side by, for example, a drawing operation. The insertion of the cylindrical intermediate member 12 is not limited to the pull-in, and a known reverse insertion method of feeding while turning over may be used.
円筒状中間部材12は、少なくとも押圧力を受けて変形する変形性を有していれば足り、例えば、繊維生成の部材である不織布を用いることが可能である。まず、本実施の形態では、円筒状中間部材12が変形性だけでなく硬化性充填材の被含浸性を有する場合を例とし、予め硬化性充填材を含浸させた円筒状中間部材12を用いる本実施の形態について説明する。円筒状中間部材12は、不織布によって形成されているが、この不織布の他、多孔性を有する合成樹脂製(ポリエステルやポリエチレンなど)の部材や植物系(パルプなど)の部材を用いることが可能である。   The cylindrical intermediate member 12 only needs to have at least a deformability that is deformed by receiving a pressing force, and for example, a nonwoven fabric that is a fiber generating member can be used. First, in the present embodiment, a case where the cylindrical intermediate member 12 has not only deformability but also impregnation of a curable filler is used as an example, and the cylindrical intermediate member 12 impregnated with a curable filler in advance is used. This embodiment will be described. The cylindrical intermediate member 12 is formed of a nonwoven fabric. In addition to the nonwoven fabric, a porous synthetic resin (polyester, polyethylene, etc.) member or a plant-based (pulp etc.) member can be used. is there.
この円筒状中間部材12には、予め硬化性充填材が含浸されている。この硬化性充填材の含浸は、施工現場の地上にて行うこともできるが、通常は、工場にて含浸作業が行われ、含浸済みの円筒状中間部材12の表面にシール材などを貼って運搬される。   The cylindrical intermediate member 12 is impregnated with a curable filler in advance. Although the impregnation of the curable filler can be performed on the ground of the construction site, the impregnation operation is usually performed at a factory, and a sealing material or the like is pasted on the surface of the impregnated cylindrical intermediate member 12. Transported.
この円筒状中間部材12が挿入された状態では、同図(B)に示されたように上部が撓んだ状態、或いは、上下が密着した状態となっているので、必要に応じて、すなわち、次段の工程にて更生管を挿入するために支障のない程度に拡径動作が行われる。この拡径動作は、既知の加圧空気の吹き込みなどで行うことが可能である。   In the state where the cylindrical intermediate member 12 is inserted, the upper part is bent as shown in FIG. 5B, or the upper and lower parts are in close contact with each other. In order to insert the rehabilitation pipe in the next step, the diameter expansion operation is performed to the extent that there is no problem. This diameter expansion operation can be performed by blowing known pressurized air or the like.
図2から図4は、次の工程である更生管の挿入動作を示している。本実施の形態では図2に示したように、まず、先頭の更生管ピース14−1の進行方向前方の先端部に取り付けられる先頭キャップ16が設置されている。この先頭キャップ16は、進行方向の前方側に向かって漸次径の小さくなった形状を有し、先端は丸みを帯びた形状となっており、合成樹脂や金属にて形成されている。そして、図3(A)に示されているようにこの先頭キャップ16に先頭の更生管ピース14−1が固定されて円筒状中間部材12内に挿入される。図示のように、更生管ピースは、後方から順次継ぎ足して挿入されている。本実施の形態では、押し込み挿入されている。   2 to 4 show the rehabilitation tube insertion operation as the next step. In the present embodiment, as shown in FIG. 2, first, a head cap 16 that is attached to the front end portion in the forward direction of the head rehabilitation pipe piece 14-1 is installed. The leading cap 16 has a shape with a gradually decreasing diameter toward the front side in the traveling direction, and the tip has a rounded shape, and is made of synthetic resin or metal. Then, as shown in FIG. 3A, the leading rehabilitation tube piece 14-1 is fixed to the leading cap 16 and inserted into the cylindrical intermediate member 12. As shown in the figure, the rehabilitation tube pieces are inserted by being sequentially added from the rear. In this embodiment, it is pushed and inserted.
この様に、先頭キャップ16を用いることにより、円筒状中間部材12を押し広げながら進行していく更生管ピース14の動作がスムーズなものとなっている。すなわち、更生管ピース14−1だけで挿入を行う場合、更生管ピース14の先端の角部が円筒状中間部材12の表面部に引っ掛かり、スムーズな進行を妨げる場合も有ることからこれを防止しているものである。図3(B)はその作用を説明するための図であり、図示のように、先頭キャップ16が円筒状中間部材12を円滑に押し広げつつ前進するものである。   Thus, by using the top cap 16, the operation of the rehabilitation pipe piece 14 that progresses while expanding the cylindrical intermediate member 12 becomes smooth. That is, when inserting only with the rehabilitation pipe piece 14-1, the corner | angular part of the front-end | tip of the rehabilitation pipe piece 14 is caught on the surface part of the cylindrical intermediate member 12, and this may be prevented from preventing smooth progress. It is what. FIG. 3B is a view for explaining the operation, and as shown in the figure, the head cap 16 advances while smoothly expanding the cylindrical intermediate member 12.
図4は、補修対象の下水道本管10の全長に亘り、更生管ピース14が挿入され、更生管の設置が終了した状態が示されている。また、図5は、この更生管ピース14の挿入が終了し、先頭キャップ16が撤去された状態が示されており、これにより中間部材設置工程、すなわち、硬化性充填材の含浸された円筒状中間部材12が的確に下水道本管10と更生管ピース14の連結体である更生管との間の間隙を充満させている。   FIG. 4 shows a state where the rehabilitation pipe piece 14 is inserted and the installation of the rehabilitation pipe is completed over the entire length of the sewer main pipe 10 to be repaired. FIG. 5 shows a state in which the insertion of the rehabilitation tube piece 14 has been completed and the top cap 16 has been removed, whereby an intermediate member installation step, that is, a cylindrical shape impregnated with a curable filler. The intermediate member 12 accurately fills the gap between the sewer main pipe 10 and the rehabilitation pipe which is a connected body of the rehabilitation pipe piece 14.
この様に、上記変形性と被含浸性とを有する円筒状中間部材12を用いることで、硬化性充填材だけを下水道本管10と更生管(14)との間の隙間に注入する作業の困難性が解消されている。すなわち、硬化性充填材は円筒状中間部材12に含浸された状態で上記隙間に充填されるので、ムラのない状態で隙間に充填されていることとなる。円筒状中間部材12は文字通り円筒状であるので、確実に更生管(14)の全周を覆っており、円筒状中間部材12への硬化性充填材の含浸が的確に行われている限り、隙間は満遍なく硬化性充填材で満たされる。   Thus, by using the cylindrical intermediate member 12 having the above deformability and impregnation property, only the curable filler is injected into the gap between the sewer main pipe 10 and the rehabilitation pipe (14). The difficulty has been eliminated. That is, since the curable filler is filled in the gap while being impregnated in the cylindrical intermediate member 12, the gap is filled without any unevenness. Since the cylindrical intermediate member 12 is literally cylindrical, it reliably covers the entire circumference of the rehabilitation pipe (14), and as long as the cylindrical intermediate member 12 is accurately impregnated with the curable filler, The gap is evenly filled with a curable filler.
この円筒状中間部材12への硬化性充填材の含浸作業は、既設管の中での作業である必要はなく、予め工場において行えば足り、満遍なく硬化性充填材を含浸させることに困難性はない。これにより、更生管(14)及び円筒状中間部材12の硬化後においては、空洞の残存などを確実に回避されている。   The impregnation operation of the curable filler into the cylindrical intermediate member 12 does not have to be performed in an existing pipe, and may be performed in the factory in advance, and it is difficult to uniformly impregnate the curable filler. Absent. Thereby, after hardening of the rehabilitation pipe | tube (14) and the cylindrical intermediate member 12, the remainder of a cavity, etc. are avoided reliably.
ここで使用される硬化性充填材は、経時硬化性充填材であり、かつ硬化時における膨張性を有する材料、例えば、ウレタン、発泡剤を混入したセメントミルクなどの水硬化性材料を用いることが好適である。これにより、硬化時における更生管(14)と下水道本管10との間の間隙への硬化性充填材の充満性は向上し、また、既設管内壁面の亀裂や凹部などへの充填材の浸透性の向上も図られる。   The curable filler used here is a time-curable filler, and a material having expandability during curing, for example, a water curable material such as urethane or cement milk mixed with a foaming agent is used. Is preferred. Thereby, the filling property of the curable filler into the gap between the rehabilitation pipe (14) and the sewer main pipe 10 at the time of hardening is improved, and the penetration of the filler into the cracks and recesses of the inner wall surface of the existing pipe The improvement of property is also achieved.
また、不織布で形成した円筒状中間部材12のサイズは、拡径状態では既設管である下水道本管10の内側面に密着可能な外径を有し、硬化性充填材が含浸された状態で、下水道本管10の内側面と更生管(14)との間隙のサイズよりも厚い厚さを有していることが好適である。これにより、先頭キャップ16及び更生管(14)でやや押し広げられながら中間部材設置工程が行われるので、より確実に既設管と更生管との間の間隙が埋められる。更に、この押圧により、硬化性充填材が既設管内側面に存在する凹部や亀裂などに浸み込んで行くので、既設管と更生管との一体性はより高いものとなる。   Moreover, the size of the cylindrical intermediate member 12 formed of a nonwoven fabric has an outer diameter that can be in close contact with the inner surface of the sewer main pipe 10 that is an existing pipe in the expanded diameter state, and is impregnated with a curable filler. It is preferable to have a thickness greater than the size of the gap between the inner surface of the sewer main pipe 10 and the rehabilitation pipe (14). As a result, the intermediate member installation step is performed while being slightly expanded by the top cap 16 and the rehabilitation pipe (14), so that the gap between the existing pipe and the rehabilitation pipe is more reliably filled. Further, the pressing causes the curable filler to soak into recesses and cracks existing on the inner side surface of the existing pipe, so that the integrity between the existing pipe and the renovated pipe becomes higher.
更に、上述したように、円筒状中間部材12には、硬化性充填材の被含浸性は必ずしも必要ではなく、不織布を使用部材として用いた場合でも、硬化性充填材を含浸させないで、設置することも可能である。円筒状中間部材12は、後述の更生管が導入された後においては、下水道本管10と更生管との間で押圧された状態となり、この間隙を充満する。したがって、更生管の導入設置によって、更生管外側面と下水道本管10の内側面との間は、円筒状中間部材12によって隙間なく充たされる。   Further, as described above, the cylindrical intermediate member 12 does not necessarily need to be impregnated with the curable filler, and is installed without impregnating the curable filler even when a non-woven fabric is used as the used member. It is also possible. The cylindrical intermediate member 12 is pressed between the sewer main pipe 10 and the rehabilitation pipe after the rehabilitation pipe described later is introduced, and fills this gap. Therefore, by introducing and installing the rehabilitating pipe, the space between the rehabilitating pipe outer surface and the inner surface of the sewer main pipe 10 is filled with the cylindrical intermediate member 12 without a gap.
この様に、硬化性充填材を含浸させない繊維性部材を用いた場合でも、押圧状態となることで防水性が生じ、更に、既設管の外部から浸入してくる細かい泥粒を含む水によって、その部材の目が埋められ防水性を発揮しうる状況となるので問題なく適用可能である。   In this way, even when using a fibrous member not impregnated with a curable filler, waterproofing occurs by being in a pressed state, and further, with water containing fine mud particles entering from the outside of the existing pipe, Since the eyes of the member are filled and the waterproof property can be exerted, it can be applied without any problem.
なお、円筒状中間部材12は上述のような不織布などの繊維性部材が好適ではあるが、これに限られず、変形性を有する合成樹脂性の防水性に優れる部材を用いることも好適であり、その場合、優れた柔軟性と防水性の円筒状中間部材を容易に製造することができる。この場合、上述の実施の形態の場合のような、更生管と既設管の一体性向上による性能の向上ではなく、既設管と更生管の柔軟な設置関係の確保による性能の向上が図られる。以上のような、円筒状中間部材12の形成材料や硬化性充填材の含浸の有無は、補修対象の既設管の径サイズや設置状態に応じて適宜選択される。   The cylindrical intermediate member 12 is preferably a fibrous member such as a non-woven fabric as described above, but is not limited thereto, and it is also preferable to use a synthetic resin-based waterproof member having deformability, In that case, an excellent flexibility and waterproof cylindrical intermediate member can be easily manufactured. In this case, the performance is improved by ensuring a flexible installation relationship between the existing pipe and the rehabilitated pipe, not the performance improvement by improving the integrity of the rehabilitated pipe and the existing pipe as in the case of the above-described embodiment. The presence / absence of impregnation of the forming material of the cylindrical intermediate member 12 and the curable filler as described above is appropriately selected according to the diameter size and installation state of the existing pipe to be repaired.
以上のように、上述の実施の形態で示した硬化性充填材を含浸させた円筒状中間部材1の場合だけでなく、充填材を含浸させない場合でも、補修対象の既設管内に更生管が導入された後に、両者の小さい間隙に充填材を注入する煩雑かつ困難な作業を行う必要がなくなる。   As described above, the rehabilitation pipe is introduced into the existing pipe to be repaired not only in the case of the cylindrical intermediate member 1 impregnated with the curable filler shown in the above-described embodiment but also in the case where the filler is not impregnated. After that, there is no need to perform a complicated and difficult operation of injecting the filler into the small gap between them.
更に、設置した更生管を再度補修する状況が生じた場合、例えば、耐久年数が経過した様な場合、上記円筒状中間部材12の存在により、当初の既設管から更生管を抜き取る作業を従来の設置状態より容易に行うことができる。したがって、内部に新たな更生管を設置することによる管径の小径化を回避することが可能となる。   Furthermore, when a situation occurs in which the installed rehabilitation pipe is repaired again, for example, when the durable life has elapsed, the operation of extracting the rehabilitation pipe from the original existing pipe is performed due to the presence of the cylindrical intermediate member 12. It can be performed more easily than the installed state. Therefore, it is possible to avoid a reduction in the diameter of the pipe by installing a new rehabilitation pipe inside.
次に、図6から図9は第2の実施の形態を示している。本実施の形態は、既設管内に形成する更生管として、硬化性管状ライニング材を導入し、これを最終形状に拡径し、硬化させて更生管とする補修方法に適用される例を示している。まず、図6に示したように、上記第1の実施の形態と同様に下水道本管10には、一方のマンホール側から円筒状中間部材12が挿入されている。   Next, FIGS. 6 to 9 show a second embodiment. This embodiment shows an example applied to a repairing method in which a curable tubular lining material is introduced as a rehabilitation pipe formed in an existing pipe, and the diameter is expanded to a final shape and cured to obtain a rehabilitation pipe. Yes. First, as shown in FIG. 6, the cylindrical intermediate member 12 is inserted into the sewer main pipe 10 from one manhole side as in the first embodiment.
この円筒状中間部材12は、上記第1の実施の形態と同様に、必ずしも硬化性充填材を予め含浸させる必要はなく、例えば、不織布などの繊維性部材をそのまま設置するか、硬化性充填材を含浸させた円筒状中間部材を設置するか、状況に応じて適宜選択される。   As in the first embodiment, the cylindrical intermediate member 12 does not necessarily need to be impregnated with a curable filler in advance. For example, a fibrous member such as a non-woven fabric may be installed as it is or a curable filler may be used. A cylindrical intermediate member impregnated with is installed or selected as appropriate according to the situation.
そして、この挿入された円筒状中間部材12の中に、硬化性の管状ライニング材20が挿入される。この管状ライニング材20は、本実施の形態では、熱可塑性材料(例えば、ポリ塩化ビニル等)にて形成されており、挿入作業は、牽引ロープ21を管状ライニング材20の先端に取り付け、挿入方向に引き込む引き込み方式を採用している。   Then, the curable tubular lining material 20 is inserted into the inserted cylindrical intermediate member 12. In this embodiment, the tubular lining material 20 is formed of a thermoplastic material (for example, polyvinyl chloride), and an insertion operation is performed by attaching the traction rope 21 to the distal end of the tubular lining material 20 and inserting the tubular lining material 20 in the insertion direction. A pull-in method that pulls in is adopted.
図7は、この引き込みが行われる際の管状ライニング材20の状態が示されており、図示のようにΩ状に畳まれている(曲げられている)。この状態で所定の加熱が行われ、軟化されて引き込まれるものである。また、この様に曲げることで、外径が小さくなり、引き込み動作がより円滑なものとなり、更に、この状態から後述の拡径作業を行うことも容易である。   FIG. 7 shows the state of the tubular lining material 20 when this drawing is performed, and it is folded (bent) into an Ω shape as shown. Predetermined heating is performed in this state, and it is softened and drawn. Further, by bending in this way, the outer diameter becomes smaller, the pulling-in operation becomes smoother, and it is also easy to carry out the diameter expanding operation described later from this state.
なお、管状ライニング材20は、熱可塑性材料にて形成するものに限られず、ガラス繊維や不織布、又はそれらの複合材などの芯材に光硬化性や熱硬化性の樹脂材料を含浸させて形成することも可能である。この様な管状ライニング材20は、例えば、巻回されて地上に設置されており、順次送り出されて下水道本管10側へ供給される。なお、相互付着防止のため表面にはシール等が貼られている。そして、下水道本管10内への導入は、上述の引き込み式や表裏を逆転させつつ押し込み挿入する反転方式等が用いられる。光又は熱硬化性の樹脂材料としては、例えば、不飽和ポリエステル樹脂、ビニエステル樹脂などが用いられる。   The tubular lining material 20 is not limited to the one formed from a thermoplastic material, and is formed by impregnating a core material such as glass fiber, nonwoven fabric, or a composite material thereof with a photocurable or thermosetting resin material. It is also possible to do. Such a tubular lining material 20 is, for example, wound and installed on the ground, and is sequentially fed out and supplied to the sewer main 10 side. A seal or the like is affixed to the surface to prevent mutual adhesion. And the introduction into the sewer main 10 uses the above-mentioned pulling-in method or the reversing method of pushing in and inserting it while reversing the front and back. As the light or thermosetting resin material, for example, an unsaturated polyester resin, a vinyl ester resin, or the like is used.
図8は、管状ライニング材20の円筒状中間部材12への引き込み動作が終了し、次の拡径動作が行われている状態が示されている。拡径動作とは、上述のように畳まれた管状ライニング材20を本来の円筒状に復元させることであり、本実施の形態では、例えば、管状ライニング材20内への加圧蒸気の吹き込みにより拡径(復元)している。この時、管状ライニング材20の両端部は蓋部材22−1,22−2でそれぞれ閉栓されており、一方の蓋部材22−1の注入口22aから加圧蒸気を注入するものである。これにより、管状ライニング材20は加温され、蒸気により内側から押し広げられる。   FIG. 8 shows a state where the pulling-in operation of the tubular lining material 20 into the cylindrical intermediate member 12 is completed and the next diameter expansion operation is performed. The diameter expansion operation is to restore the tubular lining material 20 folded as described above to an original cylindrical shape. In this embodiment, for example, by blowing pressurized steam into the tubular lining material 20. The diameter has been expanded (restored). At this time, both ends of the tubular lining material 20 are closed with lid members 22-1 and 22-2, respectively, and pressurized steam is injected from the inlet 22a of one lid member 22-1. Thereby, the tubular lining material 20 is heated and spread from the inside by steam.
図9(A)、(B)は、この管状ライニング材20の復元動作がほぼ終了した状態が示されている。この状態では、同図(B)に矢印で表示したように、円筒状中間部材12も下水道本管10の内側面に押し付けられ、且つ、下水道本管10の内側面と管状ライニング材20との間の間隙を完全に充満させている。   9A and 9B show a state in which the restoring operation of the tubular lining material 20 is almost completed. In this state, as indicated by an arrow in FIG. 5B, the cylindrical intermediate member 12 is also pressed against the inner surface of the sewer main pipe 10 and the inner surface of the sewer main pipe 10 and the tubular lining material 20 The gap between them is completely filled.
この様に、第1の実施に形態で用いられた既製の更生管ピース14ではなく、未硬化状態の管状ライニング材20を更生管として導入する場合においても、本発明は的確に適用される。また、円筒状中間部材12に硬化性充填材を含浸させた場合、第1の実施の形態において円筒状中間部材12に硬化性充填材を含浸させた場合と同様に、硬化性充填材の下水道本管10の内側面に存在する凹部や亀裂などへの浸み込み等の良好な作用も同様に生じ、既設管と更生管との一体性の向上も図られている。   As described above, the present invention is appropriately applied even when the uncured tubular lining material 20 is introduced as the rehabilitation pipe instead of the ready-made rehabilitation pipe piece 14 used in the first embodiment. Further, when the cylindrical intermediate member 12 is impregnated with the curable filler, the sewerage of the curable filler is the same as the case where the cylindrical intermediate member 12 is impregnated with the curable filler in the first embodiment. Good effects such as penetration into recesses and cracks existing on the inner surface of the main pipe 10 also occur in the same manner, and the integration between the existing pipe and the renovated pipe is also improved.
なお、図10(A)、(B)は、上記工程の終了後、必要に応じて、管内に冷風を供給することなどにより冷却して補修が終了した状態が示されており、上記図5とは、更生管の材質が相異する(管状ライニング材と更生管ピースの相異)のみである。   FIGS. 10A and 10B show a state in which the repair is completed after cooling by supplying cold air into the pipe as necessary after the above steps are completed. Means that the material of the rehabilitation pipe is different (difference between the tubular lining material and the rehabilitation pipe piece).
次に、管状ライニング材20の硬化性と円筒状中間部材12の硬化性に特徴付けを行った変形例を以下に示す。この変形例の特徴は、管状ライニング材20の芯材に含浸させる硬化性樹脂を光硬化性の充填材とし、円筒状中間部材12に含浸させる硬化性充填材を熱硬化性の充填材としていることである。この構成により、まず、管状ライニング材20をその内側からの光照射により硬化させる作業を行う、この時、管状ライニング材20の部分には、硬化時に反応熱が発生する。したがって、この熱を利用して熱硬化性の硬化性充填材を含浸させた円筒状中間部材12の硬化を行うことが可能となる。これにより、管状ライニング材20と円筒状中間部材12の硬化作業をより迅速且つ簡単に行うことができる。   Next, modified examples characterized by the curability of the tubular lining material 20 and the curability of the cylindrical intermediate member 12 will be described below. The feature of this modification is that the curable resin impregnated in the core material of the tubular lining material 20 is a photocurable filler, and the curable filler impregnated in the cylindrical intermediate member 12 is a thermosetting filler. That is. With this configuration, first, an operation of curing the tubular lining material 20 by light irradiation from the inside is performed. At this time, reaction heat is generated in the tubular lining material 20 at the time of curing. Therefore, the cylindrical intermediate member 12 impregnated with the thermosetting curable filler can be cured using this heat. Thereby, the hardening operation | work of the tubular lining material 20 and the cylindrical intermediate member 12 can be performed more rapidly and easily.
勿論、本実施の形態において、この円筒状中間部材12に用いる硬化性充填材は、熱硬化性樹脂に限られるものではなく、光硬化性の充填材を用いることも可能であり、更には、第1の実施形態と同様に、経時的硬化性の材料を用いることも可能である。また、管状ライニング材20に含浸させる硬化性樹脂についても光硬化性のものに限定されるものではなく、熱硬化性のものを用い、管状ライニング材20,円筒状中間部材12の双方に熱硬化性の充填材を含浸させることも可能である。   Of course, in the present embodiment, the curable filler used for the cylindrical intermediate member 12 is not limited to the thermosetting resin, and a photocurable filler can be used. As with the first embodiment, it is possible to use a material that is curable over time. Further, the curable resin impregnated in the tubular lining material 20 is not limited to a photocurable one, and a thermosetting resin is used, and both the tubular lining material 20 and the cylindrical intermediate member 12 are thermally cured. It is also possible to impregnate the filler.
次に、図11は、上述した第1の実施の形態の工法に好適に用いられる装置を示している。図示のように、この装置は、最初に挿入される先頭の更生管ピース14−1の進行方向の先端部に固定されて用いられる先端装置30であり、牽引用ワイヤ32によって進行方向側に牽引されている。なお、本先端装置30を用いて牽引を行う場合、後方側からの更生管ピース14の押し込み動作も同時に行うことでより円滑な進行動作が得られるものである。   Next, FIG. 11 shows an apparatus suitably used for the construction method of the first embodiment described above. As shown in the figure, this device is a tip device 30 which is used by being fixed to the tip portion in the moving direction of the first rehabilitation tube piece 14-1 to be inserted first, and is pulled by the pulling wire 32 in the moving direction side. Has been. In addition, when pulling using this front-end | tip apparatus 30, a smooth advancing operation is obtained by also performing pushing operation of the rehabilitation pipe piece 14 from the back side simultaneously.
先端装置30の先端部は、外径の細くなった前方部30aとして構成され、その先端には流線形部30bが形成され、その先端部に牽引用ワイヤ32が取り付けられている。また、前方部30には外方に突出して設けられた車輪34が1対ずつ90度おきに設けられている。この先端装置30は、上述の第1の実施形態では、図2や図3に示された先頭キャップ16に代えて装着されるもので、既設管(下水道本管10等)に予め挿入されている円筒状中間部材12の中に挿入され、その後端部に先頭の更生管ピース14−1がネジ式或いは係合部などの構成を用いて固定取り付けされるものである。   The distal end portion of the distal end device 30 is configured as a front portion 30a having a thin outer diameter, a streamlined portion 30b is formed at the distal end, and a pulling wire 32 is attached to the distal end portion. In addition, the front portion 30 is provided with a pair of wheels 34 protruding outwardly at intervals of 90 degrees. In the first embodiment described above, the tip device 30 is mounted in place of the head cap 16 shown in FIGS. 2 and 3, and is inserted into an existing pipe (the sewer main pipe 10 or the like) in advance. It is inserted into the cylindrical intermediate member 12, and the leading rehabilitation tube piece 14-1 is fixedly attached to the rear end portion thereof using a screw type or engaging portion.
その状態で、上記前方部30aで四方に突出している車輪34は、それぞれ円筒状中間部材12の内壁面上を走行し、円筒状中間部材12を外方へ押しながら進行する。したがって、先端装置30は既設管のほぼ中心を走行することが可能であり、後方から来る径の大きな更生管ピース14はよりスムーズに円筒状中間部材12内を進行することができる。なお、先端装置30の本体は、合成樹脂製や鋼製とすることが可能である。   In this state, the wheels 34 projecting in all directions at the front portion 30a travel on the inner wall surface of the cylindrical intermediate member 12 and advance while pushing the cylindrical intermediate member 12 outward. Therefore, the tip device 30 can travel substantially in the center of the existing pipe, and the rehabilitation pipe piece 14 having a large diameter coming from the rear can advance in the cylindrical intermediate member 12 more smoothly. Note that the main body of the tip device 30 can be made of synthetic resin or steel.
なお、本発明は上記各実施の形態の構成に限定されるものではなく、発明の要旨の範囲内で種々の変形が可能である。例えば、先頭キャップ16や先頭装置30は本願発明工法の必須の構成要素ではなく、本願発明工法の円滑性を向上させるための部材として用いられるものである。したがって、これらの部材を用いることなく本願発明工法を実施することも可能である。また、実施の形態では、下水道本管を補修対象の既設管とした例を示したが、補修対象の管はこれに限られるものではなく、下水道本管に通ずる取付管などの補修に適用することも可能である。   In addition, this invention is not limited to the structure of said each embodiment, A various deformation | transformation is possible within the range of the summary of invention. For example, the head cap 16 and the head device 30 are not essential components of the method of the present invention, but are used as members for improving the smoothness of the method of the present invention. Therefore, it is also possible to implement the present invention construction method without using these members. Moreover, although the example which made the sewer main the existing pipe for repair was shown in embodiment, the pipe for repair is not restricted to this, It applies to repair of the attachment pipe etc. which lead to the sewer main It is also possible.
10 下水道本管
12 円筒状中間部材
14 更生管ピース
16 先頭キャップ
20 管状ライニング材
22 蓋部材
30 先端装置
32 牽引用ワイヤ
34 車輪
DESCRIPTION OF SYMBOLS 10 Sewer main pipe 12 Cylindrical intermediate member 14 Rehabilitation pipe piece 16 Leading cap 20 Tubular lining material 22 Lid member 30 Tip device 32 Towing wire 34 Wheel

Claims (4)

  1. 補修対象の既設管内に新たな更生管を導入して前記既設管の補修が行われる既設管補修工法において、
    前記既設管内への更生管の導入前に、
    少なくとも押圧力を受けて変形する変形性と、前記既設管と前記更生管との隙間のサイズよりも厚い厚さを有し、前記更生管の導入後において前記更生管と前記既設管との間で押圧されて変形した状態で前記間隙を充満するサイズと、を有する硬化性充填材を含浸させない円筒状中間部材を前記既設管内に設置する中間部材設置工程を含み
    前記硬化性充填材非含浸の円筒状中間部材を設置した後に前記更生管を導入することを特徴とする既設管補修工法。
    In the existing pipe repair method in which a new rehabilitation pipe is introduced into the existing pipe to be repaired and the existing pipe is repaired.
    Before introducing the rehabilitation pipe into the existing pipe,
    It has a deformability that deforms at least under the pressing force, and a thickness that is thicker than the size of the gap between the existing pipe and the rehabilitated pipe, and between the rehabilitated pipe and the existing pipe after the rehabilitation pipe is introduced. in a size that fills the gaps in the pressing has been deformed state, the cylindrical intermediate member not impregnated with curable filler having a include an intermediate member placing step of placing the existing pipe,
    An existing pipe repairing method , wherein the rehabilitated pipe is introduced after the cylindrical intermediate member not impregnated with the curable filler is installed .
  2. 前記更生管の導入は、
    前記既設管内に設置された円筒状中間部材の中に、一体形の硬化性管状ライニング材を挿入し、
    該挿入した管状ライニング材を拡径して前記円筒状中間部材を前記既設管内側面に押し付けて厚さ方向に変形させ、その押し付け状態で硬化されて行われることを特徴とする請求項に記載の既設管補修工法。
    The introduction of the rehabilitation pipe
    Inserting an integral curable tubular lining material into the cylindrical intermediate member installed in the existing pipe,
    And expanded the inserted tubular lining material is deformed in the thickness direction pressing said cylindrical intermediate member to said existing pipe side, according to claim 1, characterized in that it is carried out is cured in the pressing state Existing pipe repair method.
  3. 前記挿入され拡径された硬化性管状ライニング材の硬化作業は、該管状ライニング材の構成材料として光硬化性の材料を用い、これを光照射によって硬化させることにより行うこと特徴とする請求項に記載の既設管補修工法。 Claim wherein the inserted curing operation of the enlarged diameter hardenable tubular lining material, the photocurable material used as the material of the tubular lining material, which is characterized by performing by curing by light irradiation 2. Existing pipe repair method described in 2 .
  4. 前記円筒状中間部材は、不織布等の繊維性部材にて形成されたことを特徴とする請求項1からの何れか1項に記載の既設管補修工法。 The existing pipe repair method according to any one of claims 1 to 3 , wherein the cylindrical intermediate member is formed of a fibrous member such as a nonwoven fabric.
JP2013080227A 2013-04-08 2013-04-08 Method of repairing existing pipe Pending JP2013189014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013080227A JP2013189014A (en) 2013-04-08 2013-04-08 Method of repairing existing pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013080227A JP2013189014A (en) 2013-04-08 2013-04-08 Method of repairing existing pipe

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2007275471A Division JP5265172B2 (en) 2007-10-23 2007-10-23 Existing pipe repair method

Publications (1)

Publication Number Publication Date
JP2013189014A true JP2013189014A (en) 2013-09-26

Family

ID=49389779

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013080227A Pending JP2013189014A (en) 2013-04-08 2013-04-08 Method of repairing existing pipe

Country Status (1)

Country Link
JP (1) JP2013189014A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015066939A (en) * 2013-10-01 2015-04-13 吉佳エンジニアリング株式会社 Renovation pipe and method for renovating existing pipe line

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01188326A (en) * 1988-01-25 1989-07-27 Toubu Kuriinaa Service:Kk Preliner and repairing technique of pipe line
JPH08258152A (en) * 1995-03-20 1996-10-08 Shonan Gosei Jushi Seisakusho:Kk Pipe lining material and internal pressure pipe repairing method
JPH11198230A (en) * 1998-01-09 1999-07-27 Iseki Poly Tech Inc Lining method of existing pipe, safety administration unit for lining work by the method, and light train for uv irradiation
JP2002137298A (en) * 2000-11-07 2002-05-14 Shonan Gosei Jushi Seisakusho:Kk Material and method for pipe lining

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01188326A (en) * 1988-01-25 1989-07-27 Toubu Kuriinaa Service:Kk Preliner and repairing technique of pipe line
JPH08258152A (en) * 1995-03-20 1996-10-08 Shonan Gosei Jushi Seisakusho:Kk Pipe lining material and internal pressure pipe repairing method
JPH11198230A (en) * 1998-01-09 1999-07-27 Iseki Poly Tech Inc Lining method of existing pipe, safety administration unit for lining work by the method, and light train for uv irradiation
JP2002137298A (en) * 2000-11-07 2002-05-14 Shonan Gosei Jushi Seisakusho:Kk Material and method for pipe lining

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015066939A (en) * 2013-10-01 2015-04-13 吉佳エンジニアリング株式会社 Renovation pipe and method for renovating existing pipe line

Similar Documents

Publication Publication Date Title
JP5265172B2 (en) Existing pipe repair method
JP2007512155A (en) Field curable liner with integrated inner impermeable layer and continuous manufacturing method
KR101359448B1 (en) Entire repairing method for pipe lines with non-excavation
US20130098535A1 (en) Method and apparatus for forming a coating on a lining of a conduit in situ
US6682668B1 (en) Installation of cured in place liners with an endless reusable inflation bladder and installation apparatus
JP2013189014A (en) Method of repairing existing pipe
KR101600064B1 (en) Method For Repairing A Pipeline Using Liner and Moisture-Curable Foamable Resin
JP4750610B2 (en) Rehabilitation of existing pipes
JP4482423B2 (en) Pipe line replacement method and new pipe update device
JP2007303535A (en) Method for regenerating pipeline
JP5501664B2 (en) Seismic waterproof structure for existing pipes
JP5600419B2 (en) Existing pipe repair method
JP5149741B2 (en) Existing pipe repair method
JP5430308B2 (en) Existing pipe repair method
JP3436604B2 (en) How to rehabilitate an existing sewer and rebuild the sewer
KR20030009711A (en) Liner for rehabilitating pipe conduit
JP2007169987A (en) Underground buried pipe repairing method
JP2008238738A (en) Pipeline bridge regeneration method
KR200255487Y1 (en) Liner for rehabilitating pipe conduit
JP4615756B2 (en) Rehabilitation pipe inspection method
KR102149739B1 (en) Method for lining a pipe and lining structure
KR102261120B1 (en) Repair tube expansion device for repair of underground pipes, repairing device including thereof and repairing method thereof
JP2001108183A (en) Repairing construction method for inner surface of existing pipe conduit and ring assembling and conveyng device for segment used therefor
JP2737103B2 (en) Cable laying and pipeline repair method
JP4686044B2 (en) How to pull out the rehabilitation pipe

Legal Events

Date Code Title Description
A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20140527

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20140728

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20140819

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20141118

A911 Transfer of reconsideration by examiner before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20150126

A912 Removal of reconsideration by examiner before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A912

Effective date: 20150313