JP2019104144A - Pipeline restoration method and pipe restoration member - Google Patents

Pipeline restoration method and pipe restoration member Download PDF

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JP2019104144A
JP2019104144A JP2017237028A JP2017237028A JP2019104144A JP 2019104144 A JP2019104144 A JP 2019104144A JP 2017237028 A JP2017237028 A JP 2017237028A JP 2017237028 A JP2017237028 A JP 2017237028A JP 2019104144 A JP2019104144 A JP 2019104144A
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plate member
band plate
pipe
surface side
band
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JP6931873B2 (en
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伸一 谷川
Shinichi Tanigawa
伸一 谷川
良一郎 中村
Ryoichiro Nakamura
良一郎 中村
晃介 鈴木
Kosuke Suzuki
晃介 鈴木
三浦　仁
Hitoshi Miura
仁 三浦
和孝 三山
Kazutaka Miyama
和孝 三山
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KUBOTA KOKEN KK
Osaka Bousui Construction Co Ltd
Kubota ChemiX Co Ltd
Kubota Koken KK
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KUBOTA KOKEN KK
Osaka Bousui Construction Co Ltd
Kubota ChemiX Co Ltd
Kubota Koken KK
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Abstract

To provide a pipeline restoration method which can form a high strength pipe body while suppressing the force needed when spirally winding a pipe restoration member.SOLUTION: Provided is a method for restoring pipeline by using a pipe restoration member 10 including a first band plate-shaped member 12 and a second band plate-shaped member 14 attachable to the inner surface side of the first band plate-shaped member 12. The method for restoring pipeline, when forming a pipe body, spirally winds the first band plate-shaped member 12 along the inner surface of the existing pipe to make a temporary pipe, and thereafter spirally winds the second band plate-shaped member 14 and attach it to the first band plate-shaped member 12 so as to cover the inner surface side of the first band plate-shaped member 12.SELECTED DRAWING: Figure 3

Description

この発明は管路更生方法および管更生部材に関し、特にたとえば、矩形きょおよび馬蹄きょ等の断面が非円形状の既設管を更生する、管路更生方法および管更生部材に関する。   The present invention relates to a method and a member for rehabilitating a pipe, and more particularly to a method and a member for rehabilitating an existing pipe having a non-circular cross section such as a rectangular or horseshoe cross section.

従来のこの種の管路更生方法の一例が特許文献１に開示される。特許文献１には、外面側に補強部材を取り付けた長尺帯状のストリップ（管更生部材）を螺旋状に巻き回し、ストリップの側縁部同士をジョイナで連結することで、既設管の内面に沿う管体を形成する管路更生方法が開示されている。このような管路更生方法は、矩形きょ等の断面が非円形状の既設管の更生にも適用可能である。   Patent Document 1 discloses an example of a conventional conduit relining method of this type. In Patent Document 1, an elongated strip (tube retreading member) having a reinforcing member attached on the outer surface side is spirally wound, and the side edges of the strip are connected by a joiner, whereby the inner surface of the existing tube is attached. Disclosed is a method of rehabilitating a conduit forming a tube along it. Such a pipe line rehabilitation method is also applicable to the rehabilitation of an existing pipe having a non-circular cross section such as a rectangular cross section.

特開２０１１‐９４６７０号公報JP 2011-94670A

しかしながら、補強部材を取り付けた管更生部材は高剛性であるため、既設管のコーナ部に沿うように管更生部材を湾曲させつつ螺旋状に巻き回す際に、大きな押圧力が必要とする。したがって、大掛かりな製管装置が必要となる。一方、螺旋状に巻き回し易くするために管更生部材の剛性を低くすると、形成した管体の直線部が変形したり、充填材注入時に浮き上がったりする恐れが生じる。   However, since the pipe renewal member to which the reinforcing member is attached is highly rigid, a large pressing force is required when winding the pipe renewal member in a spiral while curving the pipe renewal member along the corner portion of the existing pipe. Therefore, a large-scale pipe making apparatus is required. On the other hand, if the rigidity of the pipe regenerating member is reduced to facilitate spiral winding, there is a possibility that the straight portion of the formed tubular body may be deformed or may be lifted when the filler is injected.

それゆえに、この発明の主たる目的は、新規な、管路更生方法および管更生部材を提供することである。   Therefore, the main object of the present invention is to provide a novel method of rehabilitating a conduit and a member for rehabilitating a conduit.

この発明の他の目的は、管更生部材を用いて製管する際に必要な力を抑制しつつ、高強度の管体を形成できる、管路更生方法および管更生部材を提供することである。   Another object of the present invention is to provide a pipe rehabilitating method and a pipe rehabilitating member capable of forming a high strength pipe body while suppressing the force required for pipe making using the pipe rehabilitating member. .

第１の発明は、断面が非円形状の既設管を更生するための管路更生方法であって、（Ａ）外面側に長手方向に延びる複数のリブが形成された第１帯板状部材と、第１帯板状部材の内面側に取付可能な第２帯板状部材とを含む管更生部材を用意するステップ、（Ｂ）既設管の内面に沿うように第１帯板状部材を仮製管するステップ、および（Ｃ）ステップ（Ｂ）の後、第１帯板状部材の内面側を覆うように、第２帯板状部材を第１帯板状部材に取り付けるステップを含む、管路更生方法である。   A first invention is a method for rehabilitating an existing pipe having a non-circular cross section, wherein (A) a first band plate member having a plurality of ribs extending in the longitudinal direction on the outer surface side And (b) preparing the first band plate member so as to be along the inner surface of the existing pipe, and (b) preparing a pipe regenerating member including the second band plate member attachable to the inner surface side of the first band plate member. And (c) attaching a second strip plate member to the first strip plate member so as to cover the inner surface side of the first strip plate member after the step of (C) step (B). It is a pipeline rehabilitation method.

第１の発明では、矩形きょおよび馬蹄きょ等の断面が非円形状の既設管を更生する。先ず、ステップ（Ａ）において、第１帯板状部材と第２帯板状部材とを含む管更生部材を用意する。ここで、第１帯板状部材は、外面側に長手方向に延びる複数のリブが形成された帯板状の部材である。また、第２帯板状部材は、第１帯板状部材の内面側に取付可能な帯板状の部材である。次に、ステップ（Ｂ）において、既設管の内面に沿うように第１帯板状部材を仮製管する。そして、ステップ（Ｃ）において、第１帯板状部材の内面側を覆うように、第１帯板状部材に第２帯板状部材を取り付ける。つまり、第１帯板状部材の内面側に第２帯板状部材を後付けして２枚重ね（２重構造）の管体を形成する。   In the first aspect of the invention, the existing pipe having a non-circular cross section such as a rectangular cross section and a horseshoe cross section is rebuilt. First, in step (A), a pipe regenerating member including a first strip plate member and a second strip plate member is prepared. Here, the first band plate member is a band plate member in which a plurality of ribs extending in the longitudinal direction are formed on the outer surface side. The second band plate member is a band plate member that can be attached to the inner surface side of the first band plate member. Next, in step (B), the first band plate member is temporarily formed along the inner surface of the existing pipe. Then, in step (C), the second band plate member is attached to the first band plate member so as to cover the inner surface side of the first band plate member. That is, the second band plate member is retrofitted to the inner surface side of the first band plate member to form a double-layered (double-layered) tubular body.

第１の発明によれば、仮製管した第１帯板状部材に対して第２帯板状部材を内面側から取り付ける、つまり後付けで２枚重ねとすることによって管体を形成するので、個々の帯板状部材の剛性を抑えつつ、形成される管体の剛性を高めることができる。すなわち、帯板状部材を螺旋状に巻き回す等して製管する際に必要な力を低減できるので、大掛かりな製管装置が不要となる。したがって、施工が容易となり、人力での施工も可能となる。また、高強度の管体を形成できるので、管体の直線部での変形および充填材注入時の浮き上がりを防止できる。   According to the first aspect of the invention, the second band plate member is attached from the inner surface side to the temporarily manufactured first band plate member, that is, the tube body is formed by two layers by retrofitting, It is possible to increase the rigidity of the formed tube while suppressing the rigidity of the individual band plate members. That is, since it is possible to reduce the force required for pipe making by spirally winding the band plate-like member or the like, a large-scale pipe making apparatus becomes unnecessary. Therefore, construction becomes easy, and construction by human power is also possible. In addition, since a high strength tube can be formed, it is possible to prevent the deformation at the straight portion of the tube and the floating at the time of filler injection.

第２の発明は、第１の発明に従属し、ステップ（Ａ）において、第１帯板状部材の内面側に取付可能な補強部材をさらに用意し、ステップ（Ｃ）において、ステップ（Ｂ）の後、第１帯板状部材の直線部の内面側に補強部材を取り付け、その後、第１帯板状部材および補強部材の内面側を覆うように、第２帯板状部材を第１帯板状部材に取り付ける。   A second invention is according to the first invention, and in the step (A), a reinforcing member attachable to the inner surface side of the first strip plate member is further prepared, and in the step (C), the step (B) After that, attach the reinforcing member to the inner surface side of the straight part of the first band plate member, and then, the second band plate member as the first band so as to cover the inner surface side of the first band plate member and the reinforcing member. Attach to a plate-like member.

第２の発明では、ステップ（Ａ）において、第１帯板状部材、第２帯板状部材および補強部材を含む管更生部材を用意する。ここで、補強部材は、第１帯板状部材の内面側に取付可能な直線状部材である。そして、ステップ（Ｃ）では、第１帯板状部材の直線部の内面側に補強部材を取り付けた後、第１帯板状部材および補強部材の内面側を覆うように、つまり第１帯板状部材との間に補強部材を挟み込むように、第２帯板状部材を第１帯板状部材に取り付ける。   In the second invention, in step (A), a pipe regenerating member including a first band plate member, a second band plate member, and a reinforcing member is prepared. Here, the reinforcing member is a linear member attachable to the inner surface side of the first band plate-like member. Then, in the step (C), after the reinforcing member is attached to the inner surface side of the straight portion of the first band plate member, the first band plate is covered so as to cover the inner surface side of the first band plate member and the reinforcing member. The second strip plate member is attached to the first strip plate member so as to sandwich the reinforcing member between the second strip plate member and the second strip member.

第２の発明によれば、仮製管した第１帯板状部材の直線部に対して、補強部材を内面側から取り付ける、つまり管体の直線部を後付けの三重構造とするので、高剛性の部材を曲げる必要のない利点はそのままに、より高強度の管体を形成することができる。したがって、管体の直線部での変形および充填材注入時の浮き上がりをより確実に防止できる。また、直線状の補強部材を装着することで、管体の直線部が直線状に矯正されるので、管体の直線部を既設管の直線部に適切に沿わせることができる。   According to the second invention, the reinforcing member is attached from the inner surface side to the straight portion of the temporarily manufactured first band plate-like member, that is, the straight portion of the tube has a retrofit triple structure. It is possible to form a higher strength tube while maintaining the advantages of not having to bend the members. Therefore, it is possible to more reliably prevent the deformation at the straight portion of the tube and the floating at the time of filler injection. Further, by mounting the linear reinforcing member, the straight portion of the tube is straightened, so that the straight portion of the tube can be properly aligned with the straight portion of the existing pipe.

第３の発明は、第１または第２の発明に従属し、ステップ（Ｂ）において、第１帯板状部材を螺旋状に巻き回して仮製管し、ステップ（Ｃ）において、第２帯板状部材を螺旋状に巻き回して第１帯板状部材に取り付ける。   A third invention is according to the first or second invention, and in step (B), the first band plate-like member is spirally wound and temporarily manufactured, and in step (C), the second band The plate member is spirally wound and attached to the first band plate member.

第３の発明では、第１帯板状部材を仮製管するときには、第１帯板状部材を螺旋状に巻き回し、第２帯板状部材を第１帯板状部材に取り付けるときには、第２帯板状部材を螺旋状に巻き回す。   In the third invention, when temporarily pipe-producing the first band plate-like member, the first band plate-like member is spirally wound and when the second band plate-like member is attached to the first band plate-like member, Two-band plate-like member is spirally wound.

第４の発明は、第１から第３のいずれかの発明に従属し、第１帯板状部材として、厚み方向に貫通する複数の孔を有するものを用いる。   A fourth invention is according to any one of the first to third inventions, and as the first strip plate member, one having a plurality of holes penetrating in the thickness direction is used.

第４の発明によれば、充填材が第１帯板状部材と第２帯板状部材との間にも充填されるようになる。したがって、管更生部材をより強固に一体化させることができ、管体と既設管とが一体化した更生管の強度をより高めることができる。   According to the fourth invention, the filler is filled also between the first band plate member and the second band plate member. Therefore, the pipe regenerating member can be integrated more firmly, and the strength of the regenerating pipe in which the pipe body and the existing pipe are integrated can be further enhanced.

第５の発明は、第１から第４のいずれかの発明に従属し、第１帯板状部材と第２帯板状部材とは、互いに嵌め合わされる嵌合部を有する。   A fifth invention is according to any one of the first to fourth inventions, and the first band plate member and the second band plate member have fitting portions fitted to each other.

第５の発明によれば、嵌合部同士を嵌め合わせるだけで、第１帯板状部材に対して第２帯板状部材を容易に取り付けることができる。   According to the fifth invention, the second band plate member can be easily attached to the first band plate member only by fitting the fitting portions together.

第６の発明は、断面が非円形状の既設管の更生に用いられる管更生部材であって、外面側に長手方向に延びる複数のリブが形成され、かつ内面側に第１取付部が形成された第１帯板状部材、および第１帯板状部材の内面側を覆うように第１取付部に取付可能な第２帯板状部材を備える、管更生部材である。   A sixth invention is a pipe renewal member for use in the rehabilitation of an existing pipe having a non-circular cross section, wherein a plurality of ribs extending in the longitudinal direction are formed on the outer surface side, and a first attachment portion is formed on the inner surface side And a second band plate member attachable to the first mounting portion so as to cover the inner surface side of the first band plate member.

第６の発明では、管更生部材は、断面が非円形状の既設管の更生に用いられるものであり、第１帯板状部材と第２帯板状部材とを備える。第１帯板状部材は、外面側に長手方向に延びる複数のリブが形成され、かつ内面側に第１取付部が形成された帯板状の部材である。また、第２帯板状部材は、第１帯板状部材の内面側を覆うように、第１帯板状部材の第１取付部に取付可能な帯板状の部材である。   In the sixth invention, the pipe regenerating member is used for regenerating an existing pipe having a non-circular cross section, and includes a first strip plate member and a second strip plate member. The first band plate member is a band plate member in which a plurality of ribs extending in the longitudinal direction are formed on the outer surface side, and a first attachment portion is formed on the inner surface side. The second band plate member is a band plate member attachable to the first attachment portion of the first band plate member so as to cover the inner surface side of the first band plate member.

第６の発明によれば、仮製管した第１帯板状部材に対して第２帯板状部材を内面側から取り付けることができるので、個々の帯板状部材の剛性を抑えつつ、形成される管体の剛性を高めることができる。すなわち、帯板状部材を螺旋状に巻き回す等して製管する際に必要な力を低減できるので、大掛かりな製管装置が不要となる。したがって、施工が容易となり、人力での施工も可能となる。また、高強度の管体を形成できるので、管体の直線部での変形および充填材注入時の浮き上がりを防止できる。   According to the sixth invention, the second band plate member can be attached from the inner surface side to the temporarily manufactured first band plate member, so that the rigidity of the individual band plate members can be suppressed while forming The rigidity of the tube can be increased. That is, since it is possible to reduce the force required for pipe making by spirally winding the band plate-like member or the like, a large-scale pipe making apparatus becomes unnecessary. Therefore, construction becomes easy, and construction by human power is also possible. In addition, since a high strength tube can be formed, it is possible to prevent the deformation at the straight portion of the tube and the floating at the time of filler injection.

第７の発明は、第６の発明に従属し、第１帯板状部材は、内面側に第２取付部を有し、第１帯板状部材と第２帯板状部材との間に収容されるように、第２取付部に取付可能な補強部材を備える。   A seventh invention is according to the sixth invention, and the first band plate member has a second attachment portion on the inner surface side, and between the first band plate member and the second band plate member A reinforcement member attachable to the second mounting portion is provided to be accommodated.

第７の発明では、第１帯板状部材の内面側には、第１取付部に加えて、第２取付部が形成される。また、この第２取付部に取付可能な補強部材をさらに備える。補強部材は、たとえば直線状の部材であって、仮製管した第１帯板状部材の直線部に取り付けられる。   In the seventh invention, in addition to the first attachment portion, the second attachment portion is formed on the inner surface side of the first band plate-like member. Further, it further includes a reinforcing member attachable to the second attachment portion. The reinforcing member is, for example, a linear member, and is attached to the straight portion of the temporarily manufactured first band plate member.

第７の発明によれば、仮製管した第１帯板状部材に対して補強部材を内面側から取り付けることができるので、高剛性の部材を曲げる必要のない利点はそのままに、より高強度の管体を形成することができる。   According to the seventh invention, since the reinforcing member can be attached from the inner surface side to the temporarily manufactured first band plate-like member, the advantage that there is no need to bend the high rigidity member remains high, as it is. Tube can be formed.

この発明によれば、螺旋状に巻き回した第１帯板状部材に対して、第２帯板状部材を内面側から取り付ける、つまり後付けで２枚重ねとすることによって管体を形成するので、個々の帯板状部材の剛性を抑えつつ、形成される管体の剛性を高めることができる。すなわち、帯板状部材を螺旋状に巻き回す等して製管する際に必要な力を低減できるので、大掛かりな製管装置が不要となる。したがって、施工が容易となり、人力での施工も可能となる。また、高強度の管体を形成できるので、管体の直線部での変形および充填材注入時の浮き上がりを防止できる。   According to the present invention, the second band plate member is attached from the inner surface side to the first band plate member wound in a spiral shape, that is, the tube body is formed by forming two sheets by retrofitting. The rigidity of the formed tubular body can be increased while suppressing the rigidity of the individual band plate members. That is, since it is possible to reduce the force required for pipe making by spirally winding the band plate-like member or the like, a large-scale pipe making apparatus becomes unnecessary. Therefore, construction becomes easy, and construction by human power is also possible. In addition, since a high strength tube can be formed, it is possible to prevent the deformation at the straight portion of the tube and the floating at the time of filler injection.

この発明の上述の目的、その他の目的、特徴および利点は、図面を参照して行う後述の実施例の詳細な説明から一層明らかとなろう。   The above-described objects, other objects, features and advantages of the present invention will become more apparent from the detailed description of the following embodiments given with reference to the drawings.

この発明の一実施例である管路更生方法によって既設管を更生した様子を模式的に示す図解図である。It is an illustration figure which shows typically a mode that the existing pipe was rebuilt by the pipe line rehabilitation method which is one Example of this invention. 管更生部材の一例を示す斜視図である。It is a perspective view showing an example of a pipe renewal member. 図２の管更生部材を示す断面図である。It is sectional drawing which shows the pipe | tube renewal member of FIG. 図２の管更生部材が備える第１帯板状部材を示す斜視図である。It is a perspective view which shows the 1st band plate-like member with which the pipe renewal member of FIG. 2 is provided. 図４の第１帯板状部材を示す断面図である。It is sectional drawing which shows the 1st strip plate-shaped member of FIG. 図２の管更生部材が備える第２帯板状部材を示す斜視図である。It is a perspective view which shows the 2nd strip plate-like member with which the pipe renewal member of FIG. 2 is provided. 図６の第２帯板状部材を示す断面図である。It is sectional drawing which shows the 2nd strip plate-shaped member of FIG. 図２の管更生部材が備える補強部材を示す斜視図である。It is a perspective view which shows the reinforcement member with which the pipe renewal member of FIG. 2 is provided. 図８の補強部材を示す断面図である。It is sectional drawing which shows the reinforcement member of FIG. ジョイナの一例を示す斜視図である。It is a perspective view showing an example of a joiner. 図１０のジョイナを示す断面図である。It is sectional drawing which shows the joiner of FIG. 管路更生方法を説明するための図解図であって、第１帯板状部材を螺旋状に巻き回して仮製管した様子を概略的に示す図解図である。It is an illustration figure for demonstrating a pipe line regeneration method, Comprising: It is an illustration figure which schematically shows a mode that a 1st strip plate-like member was spirally wound and temporary pipe-made. 図１２に続く工程を示す図解図であって、第１帯板状部材の直線部の内面側に補強部材を取り付けた様子を概略的に示す図解図である。FIG. 13 is an illustrative view showing a process following FIG. 12, and schematically showing a state in which a reinforcing member is attached to an inner surface side of a straight portion of a first band plate-like member; 図１３に続く工程を示す図解図であって、第１帯板状部材の内面側に第２帯板状部材を螺旋状に巻き回して取り付けた様子を概略的に示す図解図である。FIG. 14 is an illustrative view showing a process following FIG. 13, and a schematic view schematically showing a second band plate member spirally wound and attached to the inner surface side of the first band plate member; 図１４に続く工程を示す図解図であって、第１帯板状部材の側縁部同士をジョイナで連結した様子を概略的に示す図解図である。FIG. 15 is an illustrative view showing a process following FIG. 14, and schematically showing a state in which the side edges of the first band plate members are connected by a joiner; 図１５に続く工程を示す図解図であって、既設管と管体との間に充填材を充填して更生管を形成した様子を示す図解図である。FIG. 16 is an illustrative view showing a process following FIG. 15, and a schematic view showing how a filler is filled between an existing pipe and a pipe to form a rejuvenated pipe; 管更生部材が備える第１帯板状部材の他の一例を示す斜視図である。It is a perspective view which shows another example of the 1st strip-plate-like member with which a pipe renewal member is provided. 図１７の第一帯板状部材を用いて形成した管体と既設管との間に充填材を充填して更生管を形成した様子を示す図解図である。It is an illustration figure which shows a mode that it filled with the filler between the pipe body formed using the 1st strip plate-shaped member of FIG. 17, and the existing pipe, and formed the rejuvenation pipe | tube.

図１を参照して、この発明の一実施例である管路更生方法は、矩形きょおよび馬蹄きょ等の断面が非円形状の既設管１００を更生するための方法であって、長尺の管更生部材を螺旋状に巻き回し、その管更生部材の側縁部同士を接続することによって、既設管１００の内面に沿う管体１０２を形成するものである。詳細は後述するように、この実施例の管路更生方法では、第１帯板状部材１２、第２帯板状部材１４および補強部材１６を備える管更生部材１０を用いる。そして、螺旋状に巻き回した第１帯板状部材１２に対して、補強部材１６および第２帯板状部材１４を内面側から後付けすることで管体１０２を形成する。その後、既設管１００と管体１０２との間に充填材１０４を充填することで、既設管１００と管体１０２とが一体化した更生管（複合管）を形成する。   Referring to FIG. 1, a method of rehabilitating a pipeline according to an embodiment of the present invention is a method for rehabilitating an existing pipe 100 having a non-circular cross section such as a rectangular cross section and a horseshoe cross section. The tube 102 along the inner surface of the existing tube 100 is formed by spirally winding a long tube retreading member and connecting the side edges of the tube retreading member. As will be described later in detail, in the method of rehabilitating the duct of this embodiment, the pipe rehabilitating member 10 including the first band plate member 12, the second band plate member 14 and the reinforcing member 16 is used. Then, the tubular member 102 is formed by retrofitting the reinforcing member 16 and the second band plate member 14 from the inner surface side to the first band plate member 12 wound in a spiral shape. Thereafter, the filling material 104 is filled between the existing pipe 100 and the pipe body 102 to form a rehabilitated pipe (composite pipe) in which the existing pipe 100 and the pipe body 102 are integrated.

なお、この発明に係る管路更生方法は、鉄筋コンクリート管、合成樹脂管および金属管などの種々の既設管１００の更生に適用可能であり、特に、１辺の長さが８００ｍｍ−３０００ｍｍの中大口径を有する下水管の更生に適している。以下の説明では、一辺の長さが２０００ｍｍである断面正方形状の鉄筋コンクリート管を更生することを想定して説明することとする。   In addition, the pipe line rehabilitation method according to the present invention is applicable to the rehabilitation of various existing pipes 100 such as reinforced concrete pipes, synthetic resin pipes and metal pipes, and in particular, the medium and large one side is 800 mm to 3000 mm in length. Suitable for rehabilitating drains with bores. In the following description, it will be assumed that the reinforced concrete pipe having a square cross-section having a side length of 2000 mm is to be rebuilt.

先ず、この実施例の管路更生方法に用いる部材について説明する。図２および図３に示すように、管更生部材１０は、第１帯板状部材１２、第２帯板状部材１４および補強部材１６を備える。第２帯板状部材１４および補強部材１６は、第１帯板状部材１２とは別体として用意されるものであり、第１帯板状部材１２の内面側に取付可能となっている。ただし、特に明記する場合を除き、以下の説明における各部材の「内面」とは、各部材を用いて管体１０２を形成したときに、管体１０２の内面側に位置する面のことを言う。また、各部材の「外面」とは、管体１０２の外面側に位置する面、つまり既設管１００の内面と対向する側の面のことを言う。   First, the members used for the conduit rehabilitating method of this embodiment will be described. As shown in FIGS. 2 and 3, the pipe renewal member 10 comprises a first strip-shaped member 12, a second strip-shaped member 14 and a reinforcing member 16. The second band plate member 14 and the reinforcing member 16 are prepared separately from the first band plate member 12 and can be attached to the inner surface side of the first band plate member 12. However, unless otherwise specified, the “inner surface” of each member in the following description means the surface located on the inner surface side of the tube 102 when the tube 102 is formed using each member. . Moreover, the "outside surface" of each member means the surface located in the outer surface side of the tube 102, ie, the surface of the side facing the inner surface of the existing pipe 100.

図４および図５に示すように、第１帯板状部材１２は、管体１０２の外側部分を構成する合成樹脂製の長尺部材であって、長尺の帯板状に形成される第１基体２０を含む。第１基体２０の外面２０ｂ側には、幅方向中央部および両側縁部において、長手方向に延びる複数（この実施例では４つ）の第１リブ２２が形成される。また、両側縁部の第１リブ２２の幅方向外側には、長手方向に延びる第２リブ２４が形成される。第１リブ２２は、溝状に形成されており、第１基体２０と直交する方向に突出する２つの側壁２２ａと、側壁２２ａの先端部同士を幅方向に連結する底壁２２ｂとを有する。また、底壁２２ｂは、側壁２２ａから幅方向外側に延出する延出部２２ｃを有する。第２リブ２４は、Ｌ字状に形成されており、第１基体２０と直交する方向に延びる縦壁２４ａと、縦壁２４ａから幅方向外側に突出する横壁２４ｂとを有する。第１リブ２２および第２リブ２４は、第１帯板状部材１２の剛性を高めると共に、第１基体２０の外面２０ｂと既設管１００の内面との間に所定高さの空間を形成する。また、第１リブ２２および第２リブ２４は、延出部２２ｃまたは横壁２４ｂを有することから、後述する充填材１０４に埋め込まれることでアンカ機能を発揮する。   As shown in FIGS. 4 and 5, the first band plate member 12 is a long member made of synthetic resin that constitutes the outer portion of the tube 102, and is formed in a long band plate shape. 1 includes a substrate 20. On the outer surface 20b side of the first base 20, a plurality of (four in this embodiment) first ribs 22 extending in the longitudinal direction are formed at the central portion in the width direction and at both side edges. Moreover, the 2nd rib 24 extended in a longitudinal direction is formed in the width direction outer side of the 1st rib 22 of a both-sides edge. The first rib 22 is formed in a groove shape, and has two side walls 22a protruding in a direction orthogonal to the first base 20, and a bottom wall 22b connecting tip portions of the side walls 22a in the width direction. Further, the bottom wall 22b has an extending portion 22c extending outward in the width direction from the side wall 22a. The second rib 24 is formed in an L-shape, and has a vertical wall 24 a extending in a direction orthogonal to the first base 20 and a lateral wall 24 b projecting outward in the width direction from the vertical wall 24 a. The first rib 22 and the second rib 24 enhance the rigidity of the first band plate member 12 and form a space of a predetermined height between the outer surface 20 b of the first base 20 and the inner surface of the existing pipe 100. Further, since the first rib 22 and the second rib 24 have the extension 22c or the lateral wall 24b, the first rib 22 and the second rib 24 exert an anchor function by being embedded in the filler 104 described later.

一方、第１基体２０の内面２０ａ側には、第２帯板状部材１４が取り付けられる第１取付部２６と、２つの補強部材１６が幅方向に並ぶように取り付けられる２つの第２取付部２８とが形成される。この実施例では、第１取付部２６の第１嵌合部３０および第２取付部２８の受け部３２は、第１リブ２２の外面側部分を利用して形成される。   On the other hand, on the inner surface 20a side of the first base 20, the first attachment portion 26 to which the second band plate member 14 is attached and two second attachment portions to which the two reinforcing members 16 are attached side by side in the width direction And 28 are formed. In this embodiment, the first fitting portion 30 of the first mounting portion 26 and the receiving portion 32 of the second mounting portion 28 are formed using the outer surface side portion of the first rib 22.

具体的には、第１取付部２６は、幅方向中央部および両側縁部に形成される４つの第１嵌合部３０を有し、この第１取付部２６には、第１帯板状部材１２の内面側の略全体を覆うように、第２帯板状部材１４が取り付けられる（図３参照）。第１嵌合部３０は、後述する第２帯板状部材１４の第２嵌合部４２と嵌め合わされる突条であって、第１嵌合部３０の先端部には、係止爪３０ａが形成される。   Specifically, the first attachment portion 26 has four first fitting portions 30 formed at the widthwise central portion and both side edge portions, and the first attachment portion 26 has a first band plate shape. The second band plate member 14 is attached so as to cover substantially the entire inner surface of the member 12 (see FIG. 3). The first fitting portion 30 is a protrusion to be fitted to a second fitting portion 42 of a second band plate-like member 14 described later, and the distal end portion of the first fitting portion 30 is a hook 30a. Is formed.

第２取付部２８のそれぞれは、幅方向の両側に形成される２つの受け部３２を有し、これら第２取付部２８には、第１帯板状部材１２と第２帯板状部材１４との間に収容されるように、補強部材１６が取り付けられる（図３参照）。受け部３２は、後述する補強部材１６の鉤状部５２が嵌め入れられる条溝であって、第１リブ２２の底壁２２ｂに立設される縦片３２ａと、第１リブ２２の側壁２２ａおよび底壁２２ｂとによって内面側に開口するように形成される。また、縦片３２ａの先端部には、係止爪３２ｂが形成される。   Each of the second attachment portions 28 has two receiving portions 32 formed on both sides in the width direction, and the second attachment portions 28 include a first strip plate member 12 and a second strip plate member 14. And the reinforcement member 16 is attached so as to be housed between (see FIG. 3). The receiving portion 32 is a groove in which a hook-like portion 52 of the reinforcing member 16 described later is fitted, and the vertical piece 32a erected on the bottom wall 22b of the first rib 22 and the side wall 22a of the first rib 22 And the bottom wall 22b so as to open on the inner side. Further, a locking claw 32b is formed at the tip of the vertical piece 32a.

また、第１基体２０の内面２０ａ側には、第２リブ２４の基端部を利用して、第１係合部３４が形成される。第１係合部３４は、後述するジョイナ１８の第２係合部６２と嵌め合わされる突条であって、第１係合部３４の先端部には、幅方向の内側および外側に向かって突出する２つの係止爪３４ａが形成される。   In addition, the first engagement portion 34 is formed on the inner surface 20 a side of the first base 20 using the base end portion of the second rib 24. The first engagement portion 34 is a protrusion engaged with a second engagement portion 62 of a joiner 18 described later, and the tip end portion of the first engagement portion 34 is directed inward and outward in the width direction. Two protruding locking claws 34a are formed.

第１帯板状部材１２は、たとえば、硬質塩化ビニル等の押出成形によって一体成形され、第１リブ２２、第２リブ２４、第１取付部２６、第２取付部２８および第１係合部３４などは、第１基体２０の長手方向の全長に亘って形成される。第１帯板状部材１２の幅は、たとえば２５０ｍｍであり、その高さは、たとえば２０ｍｍである。   The first band plate member 12 is integrally formed, for example, by extrusion of hard vinyl chloride or the like, and the first rib 22, the second rib 24, the first attachment portion 26, the second attachment portion 28 and the first engagement portion 34 and the like are formed over the entire length of the first base 20 in the longitudinal direction. The width of the first strip-shaped member 12 is, for example, 250 mm, and its height is, for example, 20 mm.

図６および図７に示すように、第２帯板状部材１４は、管体１０２の内側部分を構成する合成樹脂製の長尺部材である。第２帯板状部材１４は、第１帯板状部材１２の内面側に取り付けられる補強部材１６を覆って管体１０２の内面を滑らかにするカバー部材であると共に、第１帯板状部材１２の内面側に後付けされることで管体１０２の強度を高める補強部材でもある。   As shown in FIGS. 6 and 7, the second band plate-like member 14 is a long member made of synthetic resin that constitutes an inner portion of the tube body 102. The second band plate member 14 is a cover member that covers the reinforcing member 16 attached to the inner surface side of the first band plate member 12 to make the inner surface of the tube 102 smooth, and the first band plate member 12 It is also a reinforcing member that enhances the strength of the tubular body 102 by being retrofitted to the inner surface side of the tube.

具体的には、第２帯板状部材１４は、長尺の帯板状に形成される第２基体４０を含む。第２基体４０の内面４０ａは、管体１０２の内面を構成する面であり、平滑面となっている。また、第２基体４０の外面４０ｂ側には、幅方向中央部および両側縁部において、長手方向に延びる４つの第２嵌合部４２が形成される。第２嵌合部４２は、第１帯板状部材１２の第１嵌合部３０と嵌め合わされる条溝であって、第２基体４０の外面４０ｂに立設される２つの縦片４２ａによって、外面側に開口するように形成される。また、一方の縦片４２ａの先端部には、係止爪４２ｂが形成される。なお、この第２嵌合部４２は、第２帯板状部材１４の剛性を高める機能も有する。   Specifically, the second band plate member 14 includes a second base 40 formed in a long band plate shape. The inner surface 40 a of the second base 40 is a surface that constitutes the inner surface of the tubular body 102 and is a smooth surface. Further, on the outer surface 40b side of the second base 40, four second fitting portions 42 extending in the longitudinal direction are formed at the central portion in the width direction and both side edge portions. The second fitting portion 42 is a groove groove fitted to the first fitting portion 30 of the first band plate member 12 and is formed by two vertical pieces 42 a erected on the outer surface 40 b of the second base 40. , Is formed to open to the outer surface side. Further, a locking claw 42b is formed at the tip end of one vertical piece 42a. The second fitting portion 42 also has a function of enhancing the rigidity of the second band plate member 14.

第２帯板状部材１４は、たとえば、硬質塩化ビニル等の押出成形によって一体成形され、第２嵌合部４２は、第２基体４０の長手方向の全長に亘って形成される。第２帯板状部材１４の幅は、この実施例では、第１帯板状部材１２の内面側の略全体を覆うことが可能な幅に設定され、たとえば２２３ｍｍであり、その高さは、たとえば９ｍｍである。   The second band plate member 14 is integrally formed, for example, by extrusion of hard vinyl chloride or the like, and the second fitting portion 42 is formed over the entire length of the second base 40 in the longitudinal direction. The width of the second band plate member 14 is set to a width capable of covering substantially the entire inner surface of the first band plate member 12 in this embodiment, for example, 223 mm, and the height is For example, 9 mm.

第２帯板状部材１４を第１帯板状部材１２の第１取付部２６に取り付ける際には、第１取付部２６の第１嵌合部３０と第２帯板状部材１４の第２嵌合部４２とを嵌め合わせる。すると、第２嵌合部４２の係止爪４２ｂが第１嵌合部３０の係止爪３０ａに係止されて、第１帯板状部材１２に対して第２帯板状部材１４が抜け止め固定される（図３参照）。このように、第１帯板状部材１２の内面側から嵌合部３０,４２同士を嵌め合わせるだけで、第１帯板状部材１２に対して第２帯板状部材１４を容易に取り付けることができる。   When attaching the second strip plate member 14 to the first attachment portion 26 of the first strip plate member 12, the first fitting portion 30 of the first attachment portion 26 and the second of the second strip plate member 14 The fitting portion 42 is fitted. Then, the locking claws 42b of the second fitting portion 42 are locked to the locking claws 30a of the first fitting portion 30, and the second band plate member 14 is detached from the first band plate member 12 Stop fixed (see Figure 3). Thus, the second band plate member 14 can be easily attached to the first band plate member 12 simply by fitting the fitting portions 30 and 42 together from the inner surface side of the first band plate member 12. Can.

図８および図９に示すように、補強部材１６は、第１帯板状部材１２の内面側に後付けされることで管体１０２の強度を高める部材である。この実施例では、螺旋状に巻き回して仮製管した第１帯板状部材１２の直線部に補強部材１６が取り付けられ、第２取付部２８のそれぞれに取り付けられる２つの補強部材１６によって、第１帯板状部材１２（延いては管体１０２）の直線部の幅方向および長手方向の略全体が補強される。   As shown in FIG. 8 and FIG. 9, the reinforcing member 16 is a member that is attached to the inner surface side of the first strip plate member 12 to enhance the strength of the tubular body 102. In this embodiment, the reinforcing member 16 is attached to the straight portion of the first band plate member 12 which is spirally wound and temporarily piped, and by two reinforcing members 16 attached to the second attachment portions 28 respectively, Substantially the whole of the width direction and the longitudinal direction of the straight portion of the first band plate member 12 (and the tube body 102) is reinforced.

具体的には、補強部材１６は、直線状の部材であって、矩形状の平板部５０を備える。平板部５０の両側縁部には、第１帯板状部材１２の受け部３２に嵌め入れられる略Ｊ字状の鉤状部５２が形成される。この実施例では、鉤状部５２は、平板部５０の長手方向の全長に亘って設けられる。なお、この鉤状部５２は、補強部材１６の剛性を高める機能も有する。   Specifically, the reinforcing member 16 is a linear member, and includes a rectangular flat plate portion 50. A substantially J-shaped hook-like portion 52 to be fitted into the receiving portion 32 of the first band plate-like member 12 is formed on both side edges of the flat plate portion 50. In this embodiment, the brim portion 52 is provided over the entire length of the flat plate portion 50 in the longitudinal direction. The collar 52 also has a function of enhancing the rigidity of the reinforcing member 16.

補強部材１６は、たとえば、鉄鋼またはステンレス鋼などの金属板を加工することで製作される。補強部材１６の長手方向の長さは、管体１０２の直線部に応じた長さに設定され、この実施例では、たとえば１０００ｍｍである。また、各補強部材１６の幅は、たとえば９０ｍｍであり、その高さは、たとえば１６ｍｍである。   The reinforcing member 16 is manufactured by processing a metal plate such as steel or stainless steel, for example. The length in the longitudinal direction of the reinforcing member 16 is set to a length corresponding to the straight portion of the tube 102, and in this embodiment, is, for example, 1000 mm. The width of each reinforcing member 16 is, for example, 90 mm, and its height is, for example, 16 mm.

補強部材１６を第１帯板状部材１２の第２取付部２８に取り付ける際には、第２取付部２８の受け部３２に補強部材１６の鉤状部５２を嵌め入れる。すると、鉤状部５２の先端部が、受け部３２の係止爪３２ｂに係止されると共に縦片３２ａを押圧することで、第１帯板状部材１２に対して補強部材１６が抜け止め固定される（図３参照）。このように、第１帯板状部材１２の内面側から受け部３２と鉤状部５２とを嵌め合わせるだけで、第１帯板状部材１２に対して補強部材１６を容易に取り付けることができる。   When attaching the reinforcing member 16 to the second attachment portion 28 of the first strip plate member 12, the collar 52 of the reinforcing member 16 is fitted into the receiving portion 32 of the second attachment portion 28. Then, the distal end portion of the hook-like portion 52 is locked to the locking claw 32 b of the receiving portion 32 and presses the vertical piece 32 a, thereby preventing the reinforcing member 16 from coming off with respect to the first band plate member 12 It is fixed (see FIG. 3). Thus, the reinforcing member 16 can be easily attached to the first band plate member 12 simply by fitting the receiving portion 32 and the hook portion 52 from the inner surface side of the first band plate member 12 .

図１０および図１１に示すように、ジョイナ１８は、管更生部材１０の第１帯板状部材１２の側縁部同士を接続するための長尺の接続部材である。ジョイナ１８は、長帯状のジョイナ基板６０を備える。ジョイナ基板６０の内面６０ａは、第２帯板状部材１４の第２基体４０の内面４０ａと共に、管体１０２の内面を構成する。また、ジョイナ基板６０の両側縁部には、第１帯板状部材１２の第１係合部３４と嵌め合わされる第２係合部６２が形成される。この第２係合部６２は、ジョイナ基板６０の外面６０ｂから突出して長手方向に延びる２つの突条６２ａを含み、各突条６２ａの先端部には、係止爪６２ｂが形成される。また、２つの突条６２ａの間には、止水材６４が設けられ、この止水材６４の部分で、第１帯板状部材１２とジョイナ１８との間の水密性が確保される。   As shown in FIG. 10 and FIG. 11, the joiner 18 is a long connecting member for connecting the side edges of the first strip-shaped member 12 of the pipe updating member 10. The joiner 18 is provided with a strip-like joiner substrate 60. The inner surface 60 a of the joiner substrate 60 constitutes the inner surface of the tubular body 102 together with the inner surface 40 a of the second base 40 of the second band plate member 14. In addition, second engaging portions 62 to be fitted to the first engaging portions 34 of the first band plate member 12 are formed at both side edge portions of the joiner substrate 60. The second engaging portion 62 includes two ridges 62a extending from the outer surface 60b of the joiner substrate 60 and extending in the longitudinal direction, and locking claws 62b are formed at the tip of each ridge 62a. In addition, a water blocking material 64 is provided between the two ridges 62 a, and the water blocking property between the first band plate member 12 and the joiner 18 is secured at the portion of the water blocking material 64.

さらに、ジョイナ基板６０の中央部には、外面６０ｂから突出するＵ字状の溝部６６と、溝部６６全体を覆うように外面６０ｂ同士を連結する波形状のフレキシブル部６８とを含む伸縮部が形成される。このような伸縮部は、溝部６６の変形に応じて伸縮可能であると共に、溝部６６が幅方向に破断（分割）することで、フレキシブル部６８の変形に応じた大きな伸縮が可能となる。   Further, at the central portion of the joiner substrate 60, a stretchable portion including a U-shaped groove 66 projecting from the outer surface 60b and a corrugated flexible portion 68 connecting the outer surfaces 60b so as to cover the entire groove 66 is formed. Be done. Such a stretchable portion is stretchable according to the deformation of the groove portion 66, and the groove portion 66 is broken (divided) in the width direction, thereby enabling large stretch and contraction according to the deformation of the flexible portion 68.

ジョイナ１８のジョイナ基板６０、第２係合部６２および溝部６６は、たとえば、硬質塩化ビニル等の合成樹脂の押出成形によって一体成形される。また、フレキシブル部６８は、たとえば、ポリエチレン等のポリオレフィン系樹脂などによって形成され、ジョイナ基板６０に固着される。第２係合部６２、止水材６４、溝部６６およびフレキシブル部６８は、ジョイナ基板６０の長手方向の全長に亘って形成される。   The joiner substrate 60, the second engagement portion 62, and the groove portion 66 of the joiner 18 are integrally formed, for example, by extrusion of a synthetic resin such as hard vinyl chloride. The flexible portion 68 is formed of, for example, a polyolefin resin such as polyethylene, and is fixed to the joiner substrate 60. The second engaging portion 62, the water blocking material 64, the groove 66 and the flexible portion 68 are formed along the entire length of the joiner substrate 60 in the longitudinal direction.

ジョイナ１８を用いて隣り合う第１帯板状部材１２の側縁部同士を接続する際には、第１帯板状部材１２の第１係合部３４とジョイナ１８の第２係合部６２とを嵌め合わせる。すると、第２係合部６２の各係止爪６２ｂが第１係合部３４の各係止爪３４ａに係止されて、第１帯板状部材１２に対してジョイナ１８が抜け止め固定される。これにより、第１帯板状部材１２の側縁部同士がジョイナ１８によって接続されて、管体１０２が形成される（図１６参照）。この際、ジョイナ基板６０の内面６０ａは、第２帯板状部材１４の第２基体４０の内面４０ａと面一となって、管体１０２の内面は滑らかなものとなる。   When connecting the side edges of the adjacent first band plate members 12 using the joiner 18, the first engagement portion 34 of the first band plate member 12 and the second engagement portion 62 of the joiner 18 are connected. Fit together. Then, the locking claws 62b of the second engaging portion 62 are locked to the locking claws 34a of the first engaging portion 34, and the joiner 18 is fixed to the first band plate member 12 so as not to come off. Ru. Thereby, the side edge parts of the 1st strip plate-like member 12 are connected by the joiner 18, and the pipe body 102 is formed (refer FIG. 16). At this time, the inner surface 60a of the joiner substrate 60 is flush with the inner surface 40a of the second base 40 of the second band plate member 14, and the inner surface of the tubular body 102 becomes smooth.

続いて、図１および図１２−図１６を参照して、上述のような管更生部材１０を用いて既設管１００を更生する管路更生方法の一例について具体的に説明する。   Then, with reference to FIG. 1 and FIG. 12-FIG. 16, an example of the pipe line rehabilitation method of rehabilitating the existing pipe 100 using the pipe renewal member 10 as described above will be specifically described.

既設管１００を更生するときには、先ず、既設管１００の更生区間近傍の地上に、管更生部材１０およびジョイナ１８等の部材、並びに必要な工具および機械などを用意する。ただし、管更生部材１０としては、第１帯板状部材１２、第２帯板状部材１４および補強部材１６が互いに分離した状態（個別状態）のものを用意する。また、既設管１００内は、高圧洗浄機などを用いて予め洗浄しておく。   When renovating the existing pipe 100, first, on the ground near the rehabilitating section of the existing pipe 100, members such as the pipe reopening member 10 and the joiner 18 and necessary tools and machines are prepared. However, as the pipe regenerating member 10, a state in which the first band plate member 12, the second band plate member 14 and the reinforcing member 16 are separated from each other (individual state) is prepared. Further, the inside of the existing pipe 100 is cleaned in advance using a high-pressure cleaner or the like.

次に、既設管１００内に管体１０２を施工する。ここでは先ず、図１２に示すように、既設管（図１２〜図１５では省略）の内面に沿うように第１帯板状部材１２を螺旋状に巻き回して螺旋管を仮製管する。   Next, the pipe body 102 is constructed in the existing pipe 100. Here, first, as shown in FIG. 12, the first band plate member 12 is spirally wound along the inner surface of the existing pipe (not shown in FIGS. 12 to 15) to make a spiral pipe temporarily.

次に、図１３に示すように、第１帯板状部材１２の直線部の内面側のそれぞれに、補強部材１６を取り付ける。すなわち、第２取付部２８の受け部３２に補強部材１６の鉤状部５２を嵌め入れて、第１帯板状部材１２の直線部の各第２取付部２８に対して、内面側から補強部材１６を後付けする。   Next, as shown in FIG. 13, reinforcing members 16 are attached to the inner surface side of the straight portion of the first strip plate member 12. That is, the collar-like portion 52 of the reinforcing member 16 is fitted into the receiving portion 32 of the second mounting portion 28 to reinforce each second mounting portion 28 of the straight portion of the first band plate member 12 from the inner surface side. The member 16 is retrofitted.

続いて、図１４に示すように、第１帯板状部材１２および補強部材１６の内面側の略全体を覆うように、第２帯板状部材１４を螺旋状に巻き回しながら、第１帯板状部材１２に取り付ける。すなわち、第１取付部２６の第１嵌合部３０と第２帯板状部材１４の第２嵌合部４２とを嵌め合わせて、第１帯板状部材１２の全長に亘って内面側から第２帯板状部材１４を後付けする。   Subsequently, as shown in FIG. 14, while the second band plate member 14 is spirally wound so as to cover substantially the entire inner surface side of the first band plate member 12 and the reinforcing member 16, the first band It attaches to the plate-like member 12. That is, the first fitting portion 30 of the first mounting portion 26 and the second fitting portion 42 of the second band plate member 14 are fitted to each other, and from the inner surface side over the entire length of the first band plate member 12 The second strip plate member 14 is retrofitted.

続いて、図１５に示すように、第１帯板状部材１２の第１係合部３４とジョイナ１８の第２係合部６２とを嵌め合わせて、第１帯板状部材１２の隣り合う側縁部同士を、螺旋状に巻き回したジョイナ１８で接続する。これによって、既設管１００の内面に沿う管体１０２が形成される。   Subsequently, as shown in FIG. 15, the first engaging portion 34 of the first band plate member 12 and the second engaging portion 62 of the joiner 18 are fitted to each other, and the first band plate member 12 is adjacent to each other. The side edges are connected by a spirally wound joiner 18. Thereby, the pipe 102 along the inner surface of the existing pipe 100 is formed.

既設管１００内に管体１０２が形成されると、既設管１００の内面と管体１０２の外面との間に充填材（裏込材）１０４を注入し、図１および図１６に示すような、既設管１００と管体１０２とが一体化した更生管を形成する。その後、片付け作業などを適宜実施することによって、既設管１００の更生作業が終了する。   When the pipe body 102 is formed in the existing pipe 100, a filler (backing material) 104 is injected between the inner surface of the existing pipe 100 and the outer surface of the pipe body 102, as shown in FIGS. The rebuilt pipe in which the existing pipe 100 and the pipe body 102 are integrated is formed. Thereafter, the reworking operation of the existing pipe 100 is completed by appropriately performing the cleaning operation and the like.

以上のように、この実施例によれば、螺旋状に巻き回した第１帯板状部材１２に対して、第２帯板状部材１４を内面側から取り付ける、つまり後付けで２枚重ねとすることによって管体１０２を形成するので、個々の帯板状部材１２,１４の剛性を抑えつつ、管体１０２の剛性を高めることができる。すなわち、帯板状部材１２,１４を螺旋状に巻き回す際に必要な力を低減できるので、大掛かりな製管装置が不要となる。したがって、施工が容易となり、人力での施工も可能となる。また、高強度の管体１０２を形成できるので、管体１０２の直線部での変形および充填材１０４注入時の浮き上がりを防止できる。   As described above, according to this embodiment, the second band plate member 14 is attached from the inner surface side to the first band plate member 12 wound in a spiral shape, that is, two sheets are stacked by retrofitting. Since the tube body 102 is thereby formed, the rigidity of the tube body 102 can be enhanced while suppressing the rigidity of the individual strip plate members 12 and 14. That is, since the force required to spirally wind the strip plate members 12 and 14 can be reduced, a large-scale pipe making apparatus is not required. Therefore, construction becomes easy, and construction by human power is also possible. Further, since the high strength pipe body 102 can be formed, it is possible to prevent the deformation at the straight portion of the pipe body 102 and the floating at the time of filling the filling material 104.

また、この実施例によれば、仮製管した第１帯板状部材１２の直線部に対して、補強部材１６を内面側から取り付ける、つまり管体１０２の直線部を後付けの三重構造とするので、高剛性の部材を曲げる必要のない利点はそのままに、より高強度の管体１０２を形成することができる。したがって、管体１０２の直線部での変形および充填材１０４注入時の浮き上がりをより確実に防止できる。さらに、直線状の補強部材１６を装着することで、管体１０２の直線部が直線状に矯正されるので、管体１０２の直線部を既設管１００の直線部に適切に沿わせることができる。   Further, according to this embodiment, the reinforcing member 16 is attached from the inner surface side to the straight portion of the temporarily manufactured first band plate-like member 12, that is, the straight portion of the tube body 102 has a retrofit triple structure. Therefore, it is possible to form the higher strength tube body 102 while keeping the advantage that the high rigidity member does not need to be bent. Therefore, the deformation at the straight portion of the tube body 102 and the floating at the time of filling the filling material 104 can be more reliably prevented. Furthermore, by mounting the linear reinforcing member 16, the straight portion of the tube 102 is straightened, so that the straight portion of the tube 102 can be properly aligned with the straight portion of the existing tube 100. .

なお、上述した第１帯板状部材１２、第２帯板状部材１４および補強部材１６を含む管更生部材１０、並びにジョイナ１８等の具体的な構成ないし形状（リブおよび嵌合部など）は、単なる一例であり、適宜変更可能である。   In addition, specific configurations or shapes (ribs, fitting portions, etc.) of the pipe renewal member 10 including the first band plate member 12, the second band plate member 14 and the reinforcing member 16 described above, and the joiner 18 etc. , It is only an example and can be changed suitably.

たとえば、上述の実施例では、第１帯板状部材１２と第２帯板状部材１４との嵌合部３０,４２には、止水材を設けていない。これは、第１帯板状部材１２とジョイナ１８との連結体によって管体１０２の止水性が確保されているためである。しかし、第１帯板状部材１２と第２帯板状部材１４との嵌合部３０,４２にも止水材を設けて、第１帯板状部材１２と第２帯板状部材１４との間の空間、つまり補強部材１６の周囲に水が入り込まないようにしてもよい。これによって、補強部材１６の腐食を防止できる。   For example, in the above-described embodiment, the water blocking material is not provided in the fitting portions 30 and 42 between the first band plate member 12 and the second band plate member 14. This is because the connection between the first band plate member 12 and the joiner 18 ensures the waterproofness of the tube body 102. However, a water blocking material is also provided in the fitting portions 30, 42 of the first band plate member 12 and the second band plate member 14, and the first band plate member 12 and the second band plate member 14 are provided. No water may enter into the space between them, that is, around the reinforcing member 16. This can prevent corrosion of the reinforcing member 16.

また、図１７に示すように、第１帯板状部材１２には、厚み方向に貫通する複数の孔７０を形成しておいてもよい。一例として、孔７０は、第１基体２０に対して長手方向に直線状に並ぶように形成される。この場合、補強部材１６にも、第１帯板状部材１２の孔７０に対応する位置に孔を形成することが好ましい。このような孔７０を第１帯板状部材１２に形成しておくことで、図１８に示すように、充填材１０４が第１帯板状部材１２と第２帯板状部材１４との間にも充填されるようになる。これにより、管更生部材１０をより強固に一体化させることができ、更生管の強度をより高めることができる。また、補強部材１６の周囲に水が入り込まないので、補強部材１６の腐食を防止できる。   Further, as shown in FIG. 17, a plurality of holes 70 penetrating in the thickness direction may be formed in the first band plate-like member 12. As an example, the holes 70 are formed to be linearly aligned with the first base 20 in the longitudinal direction. In this case, it is preferable to form holes in the reinforcing member 16 also at positions corresponding to the holes 70 of the first band plate-like member 12. By forming such holes 70 in the first band plate member 12, as shown in FIG. 18, the filler material 104 is between the first band plate member 12 and the second band plate member 14. Will also be filled. Thereby, the pipe regenerating member 10 can be integrated more firmly, and the strength of the regenerating pipe can be further enhanced. In addition, since water does not enter the periphery of the reinforcing member 16, corrosion of the reinforcing member 16 can be prevented.

また、上述の実施例では、第１帯板状部材１２に対して幅方向に並ぶ２つの第２取付部２８を形成した、つまり２つの補強部材１６を取り付けたが、この数は適宜変更可能であり、１つまたは３つ以上の補強部材１６が取り付けられてもよい。なお、幅方向に分割して補強部材１６を取り付けることにより、第１帯板状部材１２および補強部材１６に形成される嵌合部（リブないし突条）の数が増えるので、第１帯板状部材１２および補強部材１６の剛性を高めることができる。一方で、補強部材１６の数が多くなると施工の手間が増える。このため、第１帯板状部材１２に取り付ける補強部材１６は、幅方向に２〜３つ程度に分割されていることが好ましい。   Moreover, in the above-mentioned embodiment, although the two 2nd attachment parts 28 located in a line with the width direction to the 1st strip plate-like member 12 were formed, that is, two reinforcement members 16 were attached, this number can be changed suitably. , And one or more reinforcing members 16 may be attached. In addition, since the number of fitting parts (ribs or protrusions) formed on the first band plate member 12 and the reinforcing member 16 is increased by dividing the width direction and attaching the reinforcing member 16, the first band plate The rigidity of the rod-like member 12 and the reinforcing member 16 can be enhanced. On the other hand, when the number of reinforcing members 16 increases, the time and effort of construction increases. For this reason, it is preferable that the reinforcement member 16 attached to the 1st strip plate-like member 12 is divided | segmented into about 2-3 in the width direction.

また、補強部材１６は、必ずしも第１帯板状部材１２の幅方向の略全体に亘るように取り付けられる必要はない。また、第２帯板状部材１４は、少なくとも補強部材１６の内面側全体を覆っていれば、つまり第１帯板状部材１２との間に補強部材１６を収容できれば、必ずしも第１帯板状部材１２の幅方向の略全体に亘る幅を有する必要はない。   Further, the reinforcing member 16 does not necessarily have to be attached so as to cover substantially the entire width of the first band plate member 12. Further, if the second band plate member 14 covers at least the entire inner surface side of the reinforcing member 16, that is, if the reinforcing member 16 can be accommodated between the second band plate member 14 and the first band plate member 12, the first band plate shape is not necessarily required. It is not necessary to have a width substantially across the width of the member 12.

さらに、上述の実施例では、第１帯板状部材１２（管体１０２）の直線部にのみ、補強部材１６を取り付けるようにしたが、第１帯板状部材１２の曲線部（コーナ部）にも補強部材を取り付けるようにしてもよい。第１帯板状部材１２の曲線部に取り付ける補強部材としては、予め曲線部に沿う曲線状に加工されたものを用いるとよい。管体１０２のコーナ部は、背面側が凸となる湾曲形状を有するので、そのアーチ効果によって外圧に強く、部材の変形などは生じ難いが、補強部材を取り付けることによって、コーナ部をより外圧に強くすることができ、管体１０２を周方向全長に亘って高剛性とすることができる。   Furthermore, in the above-described embodiment, the reinforcing member 16 is attached only to the straight portion of the first band plate member 12 (tube body 102), but the curved portion (corner portion) of the first band plate member 12 Alternatively, a reinforcing member may be attached. As a reinforcing member to be attached to the curved portion of the first band plate-like member 12, it is preferable to use one which has been processed into a curved shape along the curved portion in advance. The corner portion of the tube body 102 has a curved shape in which the back side is convex, so the arch effect is strong against external pressure and deformation of members is hard to occur, but by attaching a reinforcing member, the corner portion is made stronger against external pressure The tube body 102 can be made highly rigid over the entire circumferential length.

さらにまた、上述の実施例では、第１帯板状部材１２、第２帯板状部材１４および補強部材１６を含む３重構造の管体１０２を形成したが、第１帯板状部材１２と第２帯板状部材１４とで十分な剛性を有する管体１０２を形成できる場合には、補強部材１６は、必ずしも設置する必要はない。つまり、管更生部材１０は、必ずしも補強部材１６を備える必要はない。   Furthermore, in the above-described embodiment, the triple-layered tube body 102 including the first band plate member 12, the second band plate member 14 and the reinforcing member 16 is formed. In the case where the second band plate member 14 can form the tubular body 102 having sufficient rigidity, the reinforcing member 16 is not necessarily required to be installed. That is, the pipe regenerating member 10 does not necessarily have to include the reinforcing member 16.

また、全ての第２取付部２８に補強部材１６を取り付けるのではなく、第２取付部２８に対して間欠的に補強部材１６を取り付けることもできる。すなわち、更生する既設管１００の条件に応じて、補強部材１６を設置する位置または数などを変更してもよい。この発明では、第１帯板状部材１２に補強部材１６を後付けすることから、補強部材１６を設置する位置または数などを自由に設定できる。   Further, instead of attaching the reinforcing members 16 to all the second attachment portions 28, the reinforcing members 16 can be attached intermittently to the second attachment portions 28. That is, depending on the conditions of the existing pipe 100 to be rebuilt, the position or number of the reinforcing members 16 may be changed. In the present invention, since the reinforcing member 16 is retrofitted to the first band plate member 12, the position or the number of the reinforcing members 16 can be set freely.

さらに、上述の実施例では、伸縮部を備えるジョイナ１８を用いるようにしたが、ジョイナは、必ずしも伸縮部を備える必要はない。また、必ずしもジョイナ１８を用いて第１帯板状部材１２の側縁部同士を接続する必要はなく、第１帯板状部材１２の側縁部同士を直接接続する構成とすることもできる。さらに、第１帯板状部材１２の代わりに、第２帯板状部材１４の側縁部同士をジョイナ１８によって接続してもよく、第２帯板状部材１４の側縁部同士を直接接続する構成とすることもできる。   Furthermore, in the above-described embodiment, the joiner 18 having the telescopic portion is used, but the joiner does not necessarily have to have the telescopic portion. Further, the side edges of the first band plate member 12 need not necessarily be connected using the joiner 18, and the side edges of the first band plate member 12 may be directly connected. Furthermore, instead of the first band plate member 12, the side edges of the second band plate member 14 may be connected by the joiner 18, and the side edges of the second band plate member 14 may be directly connected. Can also be configured.

さらにまた、上述の実施例では、第１帯板状部材１２および第２帯板状部材１４を螺旋状に巻き回すことで製管するようにしたが、これに限定されない。たとえば、第１帯板状部材１２および第２帯板状部材１４を用いて複数の環状体を形成し、これら複数の環状体を管軸方向に連結することで管体を形成することもできる。   Furthermore, in the above-described embodiment, the pipe is produced by spirally winding the first band plate member 12 and the second band plate member 14; however, the present invention is not limited to this. For example, a tubular body can be formed by forming a plurality of annular bodies using the first strip plate member 12 and the second strip plate member 14 and connecting the plurality of annular bodies in the axial direction of the tube. .

なお、上で挙げた寸法などの具体的数値はいずれも単なる一例であり、製品の仕様などの必要に応じて適宜変更可能である。   The specific numerical values such as the dimensions mentioned above are merely examples, and can be appropriately changed according to the need of the product specification and the like.

１０ …管更生部材
１２ …第１帯板状部材
１４ …第２帯板状部材
１６ …補強部材
１８ …ジョイナ
２２,２４ …リブ
２６ …第１取付部
２８ …第２取付部
３０ …第１嵌合部
３２ …受け部
３４ …第１係合部
４２ …第２嵌合部
５２ …鉤状部
６２ …第２係合部
７０ …孔
１００ …既設管
１０２ …管体
１０４ …充填材 DESCRIPTION OF SYMBOLS 10 ... Pipe renewal member 12 ... 1st strip-plate-like member 14 ... 2nd strip-plate-like member 16 ... Reinforcement member 18 ... Joiner 22, 24 ... Rib 26 ... 1st attachment part 28 ... 2nd attachment part 30 ... 1st fitting Coupling portion 32 ... Receiving portion 34 ... First engaging portion 42 ... Second fitting portion 52 ... Flanged portion 62 ... Second engaging portion 70 ... Hole 100 ... Existing pipe 102 ... Pipe body 104 ... Filling material

Claims (7)

断面が非円形状の既設管を更生するための管路更生方法であって、
（Ａ）外面側に長手方向に延びる複数のリブが形成された第１帯板状部材と、前記第１帯板状部材の内面側に取付可能な第２帯板状部材とを含む管更生部材を用意するステップ、
（Ｂ）前記既設管の内面に沿うように前記第１帯板状部材を仮製管するステップ、および
（Ｃ）前記ステップ（Ｂ）の後、前記第１帯板状部材の内面側を覆うように、前記第２帯板状部材を前記第１帯板状部材に取り付けるステップを含む、管路更生方法。 A method for rehabilitating an existing pipe having a non-circular cross section, comprising:
(A) A pipe renewal including a first strip plate member having a plurality of ribs extending in the longitudinal direction on the outer surface side and a second strip plate member attachable to the inner surface side of the first strip plate member Preparing the parts,
(B) temporarily forming the first band plate member along the inner surface of the existing pipe, and (C) covering the inner surface side of the first band plate member after the step (B) And attaching the second strip plate member to the first strip plate member. 前記ステップ（Ａ）において、前記第１帯板状部材の内面側に取付可能な補強部材をさらに用意し、
前記ステップ（Ｃ）において、前記ステップ（Ｂ）の後、前記第１帯板状部材の直線部の内面側に前記補強部材を取り付け、その後、前記第１帯板状部材および前記補強部材の内面側を覆うように、前記第２帯板状部材を前記第１帯板状部材に取り付ける、請求項１記載の管路更生方法。 In the step (A), a reinforcing member attachable to the inner surface side of the first band plate-like member is further prepared,
In the step (C), after the step (B), the reinforcing member is attached to the inner surface side of the straight portion of the first band plate member, and then the inner surface of the first band plate member and the reinforcing member The method according to claim 1, wherein the second strip plate member is attached to the first strip plate member so as to cover the side. 前記ステップ（Ｂ）において、前記第１帯板状部材を螺旋状に巻き回して仮製管し、
前記ステップ（Ｃ）において、前記第２帯板状部材を螺旋状に巻き回して前記第１帯板状部材に取り付ける、請求項１または２記載の管路更生方法。 In the step (B), the first band plate-like member is spirally wound for temporary pipe making,
The method according to claim 1 or 2, wherein in the step (C), the second band plate member is spirally wound and attached to the first band plate member. 前記第１帯板状部材は、厚み方向に貫通する複数の孔を有する、請求項１から３のいずれかに記載の管路更生方法。   The method according to any one of claims 1 to 3, wherein the first band plate member has a plurality of holes penetrating in the thickness direction. 前記第１帯板状部材と前記第２帯板状部材とは、互いに嵌め合わされる嵌合部を有する、請求項１から４のいずれかに記載の管路更生方法。   The method according to any one of claims 1 to 4, wherein the first band plate member and the second band plate member have fitting portions fitted to each other. 断面が非円形状の既設管の更生に用いられる管更生部材であって、
外面側に長手方向に延びる複数のリブが形成され、かつ内面側に第１取付部が形成された第１帯板状部材、および
前記第１帯板状部材の内面側を覆うように前記第１取付部に取付可能な第２帯板状部材を備える、管更生部材。 A pipe renewing member used to rehabilitate an existing pipe having a non-circular cross section,
A plurality of ribs extending in the longitudinal direction are formed on the outer surface side, and a first band plate member having a first attachment portion formed on the inner surface, and the first band plate member covering the inner surface side of the first band plate member (1) A pipe renewal member comprising a second strip plate member attachable to the attachment portion. 前記第１帯板状部材は、内面側に第２取付部を有し、
前記第１帯板状部材と前記第２帯板状部材との間に収容されるように、前記第２取付部に取付可能な補強部材を備える、請求項６記載の管更生部材。 The first band plate member has a second attachment portion on the inner surface side,
The pipe renewal member according to claim 6, further comprising a reinforcing member attachable to the second attachment portion so as to be accommodated between the first strip plate member and the second strip plate member.
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Publication number Priority date Publication date Assignee Title
JP2022041253A (en) * 2020-08-31 2022-03-11 日本ノーディッグテクノロジー株式会社 Rehabilitation pipe height adjustment device and rehabilitation method for existing pipe

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6452726U (en) * 1987-09-28 1989-03-31
JP2000502629A (en) * 1996-09-11 2000-03-07 ダンビー オブ ノース アメリカ インコーポレイテッド Tube lining material and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6452726U (en) * 1987-09-28 1989-03-31
JP2000502629A (en) * 1996-09-11 2000-03-07 ダンビー オブ ノース アメリカ インコーポレイテッド Tube lining material and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022041253A (en) * 2020-08-31 2022-03-11 日本ノーディッグテクノロジー株式会社 Rehabilitation pipe height adjustment device and rehabilitation method for existing pipe

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