JP2003328430A - Repairing member for existing conduit and repairing structure for the same - Google Patents
Repairing member for existing conduit and repairing structure for the sameInfo
- Publication number
- JP2003328430A JP2003328430A JP2002138419A JP2002138419A JP2003328430A JP 2003328430 A JP2003328430 A JP 2003328430A JP 2002138419 A JP2002138419 A JP 2002138419A JP 2002138419 A JP2002138419 A JP 2002138419A JP 2003328430 A JP2003328430 A JP 2003328430A
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- Prior art keywords
- existing
- reinforcing member
- ring
- pipeline
- repairing
- 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.)
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、下水道管路等の既
設管路の補修部材および補修構造に関し、更に詳しく
は、特に劣化の進んだ大口径の既設管路を更生すべく、
その管路内に搬入した補強部材を用いて管路内面を補修
する補修部材および補修構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a repair member and repair structure for an existing pipeline such as a sewer pipeline, and more particularly, to rehabilitate an existing pipeline having a large diameter that has deteriorated.
The present invention relates to a repair member and a repair structure for repairing an inner surface of a pipeline by using a reinforcing member carried into the pipeline.
【０００２】[0002]
【従来の技術】老朽化した下水道管路等の既設管路の補
修方法として、既設管路の内面を内張り材（内面部材）
で全面的に覆う方法が知られている。このような補修方
法として、特に管路内に人が入って作業可能な大口径管
の補修に関し、本出願人らは既に、特開２００１−３１
１３８７号において、既設管を充分に補強でき、また補
修時に支保工を必要としない補修方法並びにその方法に
より得られる管路の補修構造について提案している。ま
た、その既設管路補修に用いる内張り材（内面部材）に
関して、特願２００１−１０８９４０号において、管路
の補修長が長く、内面部材の必要長が長い場合でも、そ
の製造上の問題や輸送上の問題を解決することのできる
管路の内張り構造について提案を行っている。2. Description of the Related Art As a method of repairing existing pipelines such as deteriorating sewer pipelines, the inner surface of the existing pipeline is lined with an inner lining material.
A method of covering the entire surface with is known. As such a repairing method, particularly regarding the repairing of a large-diameter pipe in which a person can enter the pipeline and work, the present applicants have already disclosed in JP-A-2001-31.
No. 1387 proposes a repairing method that can sufficiently reinforce an existing pipe and does not require supporting work at the time of repairing, and a repairing structure of a pipeline obtained by the method. Regarding the lining material (inner surface member) used for repairing the existing pipeline, in Japanese Patent Application No. 2001-108940, even if the repair length of the pipeline is long and the required length of the inner surface member is long, problems in manufacturing and transportation We are proposing a lining structure for pipelines that can solve the above problems.
【０００３】図５から図１０は、特開２００１−３１１
３８７号の提案に係る従来の既設管路の補修方法とその
構造を示した模式図である。この既設管路の補修方法
は、高剛性材料（例えば鋼等）からなる中空骨組み状の
補強体を既設管路内において組み立て、この補強体の内
側に樹脂あるいは金属等からなる内張り材（内面部材）
を取り付けた後、これら内張り材と管路内面とで形成さ
れる空間に硬化性充填材（裏込め材）を充填するもので
ある。5 to 10 are shown in Japanese Unexamined Patent Publication No. 2001-311.
It is the schematic diagram which showed the repair method of the conventional existing pipeline which concerns on the proposal of No. 387, and its structure. This repairing method for the existing pipeline is carried out by assembling a hollow frame-shaped reinforcing body made of a high-rigidity material (for example, steel) inside the existing pipeline and lining a resin or metal inside the reinforcing body (inner member). )
After the attachment, the space formed by these lining materials and the inner surface of the conduit is filled with a curable filler (backfilling material).
【０００４】図５は、既設管の径方向に沿って切断した
断面図（以下、この方向への断面図を横断面図と称す
る）であり、図６は、既設管の筒長方向に沿って切断し
た断面図（以下、この方向への断面図を縦断面図と称す
る）である。図５に示すように、この補修方法は、先ず
既設管１０の内部に、管路内面１０ａに略沿った形状の
リング状補強部材１を組み立てる。このリング状補強部
材１は、マンホール等から搬入した複数の分割補強部材
２（この例においては、３個の分割補強部材）を結合部
材３によって相互に結合して、全体として管路内面１０
ａに略沿ったリング状に組み立てられる。この分割補強
部材２の径方向内側には、後述する嵌合部材２１を嵌め
込むための複数の嵌合用凹部２ａが、周方向に等間隔に
形成されているとともに、その外縁には周方向に一様に
連続する凹凸２ｂが形成されている。また、この分割補
強部材２および結合部材３には、筒長方向に貫通する貫
通孔２ｃおよび３ｃがそれぞれ周方向に一定の間隔で形
成されており、複数のリング状補強部材１が形成された
段階で、図６に示すように、パイプ材４ａとボルト４ｂ
およびナット４ｃからなる連結部材４によって、これら
のリング状補強部材１を既設管の筒長方向に一定の間隔
で連結・一体化し、全体として中空骨組み状の補強体と
される。FIG. 5 is a cross-sectional view taken along the radial direction of the existing pipe (hereinafter, a cross-sectional view in this direction is referred to as a cross-sectional view), and FIG. 6 is taken along the tube length direction of the existing pipe. FIG. 3 is a cross-sectional view cut below (hereinafter, a cross-sectional view in this direction is referred to as a vertical cross-sectional view). As shown in FIG. 5, in this repair method, first, the ring-shaped reinforcing member 1 having a shape substantially along the inner surface 10 a of the conduit is assembled inside the existing pipe 10. In this ring-shaped reinforcing member 1, a plurality of divided reinforcing members 2 (in this example, three divided reinforcing members) carried in from a manhole or the like are connected to each other by a connecting member 3, and the pipe inner surface 10 as a whole.
It is assembled in a ring shape substantially along a. A plurality of fitting recesses 2a for fitting a fitting member 21 to be described later are formed on the radially inner side of the split reinforcing member 2 at equal intervals in the circumferential direction, and the outer edges thereof are circumferentially arranged. Concavities and convexities 2b that are uniformly continuous are formed. Further, through holes 2c and 3c penetrating in the cylinder length direction are formed in the divided reinforcing member 2 and the connecting member 3 at regular intervals in the circumferential direction, and a plurality of ring-shaped reinforcing members 1 are formed. At the stage, as shown in FIG. 6, the pipe material 4a and the bolt 4b
The ring-shaped reinforcing member 1 is connected / integrated at regular intervals in the cylinder length direction of the existing pipe by the connecting member 4 including the nut 4c to form a hollow frame-like reinforcing body as a whole.
【０００５】次に、図７に横断面図を示すように、弧状
補部材２の嵌合用凹部２ａのそれぞれに、長尺の嵌合部
材２１を既設管１０の筒長方向に沿って互いに平行に取
り付ける。その後、図８に横断面図を、図９には図８の
Ｘ−Ｘ線矢視断面図をそれぞれ示すように、各嵌合部材
２１を介してリング状補強部材１の内側に、内面部材２
２が取り付けられることとなる。この例における内面部
材２２は、既設管１０の筒長方向に沿った断面略コの字
状の長尺体であり、上記の嵌合部材２１と同様に、例え
ば既設管１０のマンホール〜マンホール間の長さを有し
ている。Next, as shown in the transverse sectional view of FIG. 7, long fitting members 21 are provided in parallel with each other in the fitting recesses 2a of the arcuate auxiliary member 2 along the tube length direction of the existing pipe 10. Attach to. After that, as shown in the cross-sectional view of FIG. 8 and the cross-sectional view of FIG. 8 taken along the line XX of FIG. 8, the inner surface member is provided inside the ring-shaped reinforcing member 1 via each fitting member 21. Two
2 will be attached. The inner surface member 22 in this example is an elongated body having a substantially U-shaped cross section along the tube length direction of the existing pipe 10, and like the fitting member 21 described above, for example, between the manhole and the manhole of the existing pipe 10. Has a length of.
【０００６】次に、図１０に示す横断面図のように、こ
の内面部材２２と管路内面１０ａとの間の空隙に硬化性
充填材２３が注入される。硬化性充填材２３の材料とし
ては、例えばセメントミルク、モルタル、コンクリート
等のセメント系材料、あるいは不飽和ポリエステル樹
脂、エポキシ樹脂等の熱硬化性樹脂などが用いられる。
この注入された硬化性充填材２３は、リング状補強部材
１ごとに筒長方向に区切られた空隙の区画を既設管の底
部側から充填しながら、分割補強部材２の凹凸２ｂによ
って形成されたすき間、あるいは分割補強部材２と管路
内面１０ａとのすき間等から、次の空隙区画へと順次流
れ込んで行くこととなる。Next, as shown in the transverse sectional view of FIG. 10, a curable filler 23 is injected into the space between the inner surface member 22 and the inner surface 10a of the conduit. As the material of the curable filler 23, for example, cement-based material such as cement milk, mortar, concrete, or thermosetting resin such as unsaturated polyester resin or epoxy resin is used.
The injected curable filler 23 was formed by the unevenness 2b of the split reinforcing member 2 while filling the partition of the voids partitioned in the cylinder length direction for each ring-shaped reinforcing member 1 from the bottom side of the existing pipe. From the gap or the gap between the split reinforcing member 2 and the inner surface 10a of the conduit, or the like, it will sequentially flow into the next void section.
【０００７】この既設管路の補修方法は、継ぎ目のない
水密構造が得やすく、中空骨組み状補強体の強度を十分
なものとできる結果、硬化性充填材（裏込め材）とし
て、流動性が良好で安価な材料、例えば水分比率の大き
いモルタル等を選択することができるという特徴を持
つ。This method for repairing existing pipelines makes it easy to obtain a seamless watertight structure and makes the strength of the hollow frame-like reinforcing member sufficient. As a result, fluidity as a curable filler (backfilling material) is obtained. It has a feature that it is possible to select a good and inexpensive material, such as mortar having a high water content.
【０００８】[0008]
【発明が解決しようとする課題】しかしながら、以上の
ような既設管路の補修構造において、硬化性充填材の注
入時に、既設管１０の底部近傍で、内面部材２２と管路
内面１０ａとの間に既設管内の滞留水や空気が噛み込ん
でしまい、硬化性充填材２３の未充填部位が形成されて
しまうことがあった。この未充填部位Ｒは、図１１に既
設管１０底部近傍の拡大図を示すように、分割補強部材
２の径方向内縁と内面部材２２とが接する部位の近傍
（図示網線部分）において発生する可能性があり、万一
この未充填部位が形成されてしまった場合、既設管路の
補修を構造上不完全なものとしてしまう恐れがある。特
に、底面が直線状である馬蹄形管や矩形管（ボックスカ
ルバート）等においては、未充填部位Ｒの形成が著しか
った。However, in the structure for repairing the existing pipeline as described above, the space between the inner surface member 22 and the pipeline inner surface 10a is provided near the bottom of the existing tube 10 when the curable filler is injected. In some cases, the accumulated water and air in the existing pipe may be trapped, and an unfilled portion of the curable filler 23 may be formed. As shown in the enlarged view of the bottom portion of the existing pipe 10 in FIG. 11, the unfilled portion R is generated in the vicinity of the portion where the radially inner edge of the split reinforcing member 2 and the inner surface member 22 are in contact (hatched portion in the figure). There is a possibility that if this unfilled part is formed, the repair of the existing pipeline may be structurally incomplete. In particular, in a horseshoe-shaped tube or a rectangular tube (box culvert) having a straight bottom surface, the unfilled portion R was significantly formed.
【０００９】本発明は、このような実情を鑑みてなされ
たものであり、硬化性充填材の未充填部位を形成するこ
とのない既設管路の補修部材および補修構造を提供する
ことを目的としている。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a repair member and repair structure for an existing pipeline that does not form an unfilled portion of the curable filler. There is.
【００１０】[0010]
【課題を解決するための手段】前記の目的を達成するた
めに、請求項１に記載の発明は、既設管路内に複数の分
割補強部材を用いて当該管路内面に沿ったリング状補強
部材を組み立て、そのリング状補強部材を既設管路筒長
方向に複数個配置して、連結部材で相互に一体化するこ
とにより、既設管路内面に略沿った中空骨組み状の補強
体を構築するとともに、その補強体の内側に複数の内面
部材を取り付けて、既設管路内面の筒長方向に沿った筒
状に組み立てた後、内面部材と既設管路内面との間の空
隙内に硬化性充填材を注入する既設管路の補修に使用さ
れる補修部材において、前記分割補強部材の内縁には、
前記内面部材に接するようにして既設管路筒長方向両側
の空間を連通させる切り込みが形成されていることを特
徴とする。In order to achieve the above-mentioned object, the invention according to claim 1 uses a plurality of split reinforcing members in an existing pipeline to reinforce a ring shape along the inner surface of the pipeline. By assembling the members, arranging a plurality of ring-shaped reinforcing members in the longitudinal direction of the existing pipeline and integrating them with the connecting member, a hollow frame-like reinforcing body that is substantially along the inner surface of the existing pipeline is constructed. At the same time, a plurality of inner surface members are attached to the inside of the reinforcing body and assembled into a tubular shape along the cylinder length direction of the inner surface of the existing pipeline, and then cured in the space between the inner surface member and the inner surface of the existing pipeline. In a repair member used for repairing an existing pipeline for injecting a conductive filler, the inner edge of the split reinforcing member,
It is characterized in that a notch is formed so as to communicate with the space on both sides in the existing pipe tube length direction so as to contact the inner surface member.
【００１１】本発明は、既設管路の内面とこれを覆う内
面部材との間の空隙内に設置されるリング状補強部材の
内縁に、硬化性充填材を管路筒長方向に通過させる切り
込みを設け、既設管内の滞留水や空気の逃げ道を確保す
ることによって、所期の目的を達成しようとするもので
ある。According to the present invention, a notch is formed in the inner edge of a ring-shaped reinforcing member installed in a gap between an inner surface of an existing pipeline and an inner surface member covering the existing pipeline so as to pass the curable filler in the longitudinal direction of the pipeline. The purpose of this is to achieve the intended purpose by providing an escape route for accumulated water and air in the existing pipe.
【００１２】すなわち、請求項１に係る発明によれば、
リング状補強部材の構築に用いられる分割補強部材の内
縁に、既設管路筒長方向両側の空間を連通させる切り込
みを形成することにより、この分割補強部材と内面部材
との間に管路筒長方向に連続するすき間が形成される。
このすき間によって、既設管路の底部近傍に設置された
分割補強部材であっても、硬化性充填材の注入によって
押し出されてきた滞留水や空気の通り道が確保され、こ
れらを管路筒長方向へ逃がすことができる。従って、本
発明の既設管路の補修部材は、硬化性充填材の管路筒長
方向の流動をスムーズにし、硬化性充填材の未充填部位
の発生を防止することができる。That is, according to the invention of claim 1,
By forming cuts at the inner edge of the split reinforcing member used for constructing the ring-shaped reinforcing member to connect the spaces on both sides in the existing pipe tube longitudinal direction, the pipe tubular length is provided between the split reinforcing member and the inner surface member. A continuous gap is formed in the direction.
This gap secures passages for accumulated water and air that have been extruded by the injection of the curable filler even in the case of the split reinforcing members installed near the bottom of the existing pipeline, and these can be secured in the longitudinal direction of the pipeline. You can escape to. Therefore, the repair member for the existing pipeline of the present invention can smooth the flow of the curable filler in the pipeline length direction and prevent the non-filled portion of the curable filler from occurring.
【００１３】ここで、分割補強部材の構造として、前記
切り込みが、前記連結部材により前記リング状補強部材
を一体化する際に、当該連結部材を貫通させる貫通孔に
連通している構造（請求項２）を好適に採用することが
できる。Here, as a structure of the split reinforcing member, the notch communicates with a through hole through which the connecting member penetrates when the ring-shaped reinforcing member is integrated by the connecting member. 2) can be suitably adopted.
【００１４】請求項２に係る発明によれば、分割補強部
材の切り込みを貫通孔と同時に形成することができ、分
割補強部材の形状加工を簡略化することがきる。特に、
この形状加工にレーザー加工を用いた場合、従来、別の
工程で行っていた分割補強部材の輪郭を形成する加工
と、貫通孔を形成する加工とを、いわゆる一筆書きの要
領で同時に行うことができるようになり、分割補強部材
の加工費を削減することできる。また、この切り込みに
よって開環する貫通孔の開環部位の幅は、この貫通孔に
挿通される連結部材が抜け落ちることがないように、連
結部材の幅よりも狭く形成することが望ましい。このよ
うな構造により、リング状補強部材を組み立てる時の手
間を増やすことなく、分割補強部材の加工費を削減で
き、ひいては既設管路の補修構造全体としてのコストの
低減を達成することが可能になる。According to the second aspect of the present invention, the notch of the split reinforcing member can be formed at the same time as the through hole, and the shape processing of the split reinforcing member can be simplified. In particular,
When laser processing is used for this shape processing, the processing for forming the contour of the divided reinforcing member and the processing for forming the through hole, which have been conventionally performed in separate steps, can be simultaneously performed in a so-called one-stroke writing manner. This makes it possible to reduce the processing cost of the split reinforcing member. Further, it is desirable that the width of the ring-opening portion of the through hole opened by this notch is formed to be narrower than the width of the connecting member so that the connecting member inserted into the through hole does not fall out. With such a structure, it is possible to reduce the processing cost of the split reinforcing member without increasing the labor for assembling the ring-shaped reinforcing member, and thus it is possible to achieve the cost reduction of the entire existing pipe repair structure. Become.
【００１５】一方、請求項３に記載の発明は、複数の分
割補強部材を既設管路内面に沿うように組み立ててなる
リング状補強部材が、既設管路筒長方向に複数個配置さ
れ、その各リング状補強部材が連結部材により相互に一
体化されて中空骨組み状の補強体が構築され、その補強
体の内側に取り付けられた複数の内面部材と既設管路内
面との間の空隙内に、硬化性充填材が充填されてなる既
設管路の補修構造において、前記分割補強部材に、請求
項１または２に記載の分割補強部材が用いられ、その各
分割補強部材に形成されている切り込みに硬化性充填材
が充填されていることを特徴とする。On the other hand, according to the invention as defined in claim 3, a plurality of ring-shaped reinforcing members, which are formed by assembling a plurality of divided reinforcing members along the inner surface of the existing pipeline, are arranged in the longitudinal direction of the existing pipeline. Each ring-shaped reinforcing member is integrated with each other by a connecting member to construct a hollow frame-shaped reinforcing member, and is provided in the space between the inner surface members attached to the inside of the reinforcing member and the inner surface of the existing pipeline. In a structure for repairing an existing pipeline that is filled with a curable filler, the split reinforcing member according to claim 1 or 2 is used as the split reinforcing member, and notches formed in each split reinforcing member. Is filled with a curable filler.
【００１６】すなわち、請求項３に係る発明によれば、
リング状補強部材の組み立てに請求項１または２に記載
の分割補強部材を使用することによって、既設管路の底
部近傍においても、硬化性充填材の注入によって押し出
されてきた滞留水や空気を管路筒長方向へ逃がすことが
でき、硬化性充填材を空隙内にすき間無く充填すること
ができる。また、この分割補強部材の切り込みの間に、
硬化性充填材が入り込んだ状態で硬化するため、硬化性
充填材とリング状補強部材とはアンカー効果により相互
の結合力が大きくなり、補修構造のより安定した強度を
得ることができる。That is, according to the invention of claim 3,
By using the split reinforcing member according to claim 1 or 2 for assembling the ring-shaped reinforcing member, the accumulated water or air extruded by the injection of the curable filler is piped even in the vicinity of the bottom of the existing pipeline. It is possible to allow the curable filler to escape in the lengthwise direction of the channel, and to fill the voids with no gap. In addition, during the cut of the split reinforcing member,
Since the curable filler is cured in a state where it enters, the curable filler and the ring-shaped reinforcing member have a large mutual bonding force due to the anchor effect, and more stable strength of the repair structure can be obtained.
【００１７】また、前記既設管路の補修構造において
は、前記内面部材が、前記リング状補強部材の内側に装
着された複数の嵌合部材を介して、前記補強体に取り付
けられている構成（請求項４）が好ましい。Further, in the existing pipe repair structure, the inner surface member is attached to the reinforcing body through a plurality of fitting members mounted inside the ring-shaped reinforcing member ( Claim 4) is preferred.
【００１８】請求項４に係る発明によれば、内面部材を
剛体であるリング状補強部材に対して直接嵌合させる場
合に比して、この補強部材と内面部材との嵌合部分の寸
法に余裕を持たすことができ、施工性が向上する。ま
た、内面部材の材質を管路に要求される機能に合わせて
選定する自由度が向上する。更に、継ぎ目の無い水密構
造を得やすいという利点もある。According to the invention of claim 4, the size of the fitting portion between the reinforcing member and the inner surface member is smaller than that in the case where the inner surface member is directly fitted to the rigid ring-shaped reinforcing member. There is a margin and workability is improved. Further, the degree of freedom in selecting the material of the inner surface member according to the function required for the conduit is improved. Further, there is also an advantage that a seamless watertight structure can be easily obtained.
【００１９】[0019]
【発明の実施の形態】以下図面を参照しつつ本発明の実
施の形態について説明する。図１は、この実施の形態に
おける既設管路補修用のリング状補強部材が、既設管路
内に組み立てられた状態を示す横断面図であり、図２
は、そのＰ部拡大図である。また、図３は、本実施の形
態における既設管路の底部近傍の補修構造を示す要部拡
大図である。なお、従来例と同様の機能を有する構成部
材には、同じ符号を付記する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing a state in which a ring-shaped reinforcing member for repairing an existing pipeline in this embodiment is assembled in the existing pipeline, and FIG.
[Fig. 4] is an enlarged view of the P portion. Further, FIG. 3 is an enlarged view of an essential part showing a repair structure near the bottom of the existing pipeline in the present embodiment. In addition, the same code | symbol is attached | subjected to the structural member which has the same function as a prior art example.
【００２０】この既設管路の補修方法も、基本的には従
来例と同様、高剛性材料（例えば鋼等）からなる中空骨
組み状の補強体を既設管路内において組み立て、この補
強体の内側に樹脂あるいは金属等からなる内張り材（内
面部材）を取り付けた後、これら内張り材と管路内面と
で形成される空間に硬化性充填材（裏込め材）を充填し
たものである。図１の横断面図に示すように、この補修
方法も、先ず既設管１０の内部に、管路内面１０ａに略
沿った形状のリング状補強部材１を組み立てる。このリ
ング状補強部材１は、マンホール等から搬入した複数の
分割補強部材２を結合部材３によって相互に結合して、
全体として管路内面１０ａに略沿ったリング状に組み立
てたものである。The repairing method for the existing pipeline is basically the same as in the conventional example, in which a hollow frame-shaped reinforcing body made of a highly rigid material (for example, steel) is assembled in the existing pipeline, and the inside of the reinforcing body is assembled. After a lining material (inner surface member) made of resin, metal or the like is attached to, the space formed by these lining material and the inner surface of the conduit is filled with a curable filler (backfilling material). As shown in the cross-sectional view of FIG. 1, also in this repair method, first, the ring-shaped reinforcing member 1 having a shape substantially along the inner surface 10 a of the conduit is assembled inside the existing pipe 10. In this ring-shaped reinforcing member 1, a plurality of divided reinforcing members 2 carried in from a manhole or the like are connected to each other by a connecting member 3,
As a whole, it is assembled in a ring shape substantially along the inner surface 10a of the conduit.
【００２１】この分割補強部材２の径方向内側には、後
述する嵌合部材２１を嵌め込むための複数の嵌合用凹部
２ａが、周方向に等間隔に形成されているとともに、そ
の外縁には周方向に一様に連続する凹凸２ｂが形成され
ている。また、この分割補強部材２および結合部材３に
は、筒長方向に貫通する貫通孔２ｃおよび３ｃがそれぞ
れ周方向に一定の間隔で形成されており、これらの貫通
孔２ｃ，３ｃを略一致させた状態でリング状補強部材１
が組み立てられる。A plurality of fitting recesses 2a for fitting a fitting member 21 which will be described later are formed on the radially inner side of the split reinforcing member 2 at equal intervals in the circumferential direction, and the outer edges thereof are formed. Concavities and convexities 2b that are uniformly continuous in the circumferential direction are formed. Further, through holes 2c and 3c penetrating in the cylinder length direction are formed in the split reinforcing member 2 and the connecting member 3 at regular intervals in the circumferential direction, and these through holes 2c and 3c are made to substantially coincide with each other. Ring-shaped reinforcing member 1
Is assembled.
【００２２】その後、本実施の形態におけるリング状補
強部材１も、図６に示す従来例と同様の方法により、複
数のリング状補強部材１が形成された段階で、パイプ材
４ａとボルト４ｂおよびナット４ｃからなる連結部材４
によって、これらのリング状補強部材１を既設管の筒長
方向に一定の間隔で連結・一体化し、全体として中空骨
組み状の補強体が構築される。また、弧状補部材２の嵌
合用凹部２ａのそれぞれには、図７から図９に示す従来
例と同様の方法で、長尺の嵌合部材２１が既設管１０の
筒長方向に沿って互いに平行に取り付けられ、これら各
嵌合部材２１を介して、リング状補強部材１の内側に長
尺の内面部材２２が取り付けられることとなる。Thereafter, in the ring-shaped reinforcing member 1 of the present embodiment, at the stage where a plurality of ring-shaped reinforcing members 1 are formed by the same method as the conventional example shown in FIG. Connecting member 4 consisting of nut 4c
Thus, these ring-shaped reinforcing members 1 are connected / integrated at regular intervals in the cylinder length direction of the existing pipe to construct a hollow frame-shaped reinforcing body as a whole. Further, in each of the fitting concave portions 2a of the arcuate auxiliary member 2, the long fitting members 21 are mutually arranged along the tube length direction of the existing pipe 10 by the same method as the conventional example shown in FIGS. 7 to 9. The long inner surface members 22 are attached in parallel, and the long inner surface member 22 is attached to the inside of the ring-shaped reinforcing member 1 via these fitting members 21.
【００２３】本実施の形態におけるリング状補強部材１
の特徴は、図２に示すように、分割補強部材２の径方向
内縁に、各貫通孔２ｃに連通する切り込み２ｄ，２ｄ，
・・・が形成されている点である。これらの切り込み２
ｄは、各貫通孔２ｃに挿通される各連結部材４の脱落を
防止するため、それぞれの貫通孔２ｃの開環部位２ｆの
幅が、連結部材４の幅より小さくなるように形成されて
いる。この構造により、分割補強部材２に嵌合部材２１
と内面部材２２とが取り付けられた場合でも、図３のよ
うに、内面部材２２に接する分割補強部材２の内縁近傍
に、既設管路筒長方向両側の空間を連通させるすき間Ｓ
が形成される。The ring-shaped reinforcing member 1 in the present embodiment
2 is characterized in that, as shown in FIG. 2, notches 2d, 2d, 2d, 2d, which communicate with each through hole 2c are formed on the radially inner edge of the split reinforcing member 2.
... is formed. These notches 2
d is formed such that the width of the ring-opening portion 2f of each through hole 2c is smaller than the width of the connecting member 4 in order to prevent the connecting member 4 inserted into each through hole 2c from falling off. . With this structure, the split reinforcing member 2 is fitted to the fitting member 21.
Even when the inner surface member 22 and the inner surface member 22 are attached to each other, as shown in FIG.
Is formed.
【００２４】ここで、従来例である図１０と同様に、内
面部材２２と管路内面１０ａとの間の空隙に硬化性充填
材２３が注入された場合、この硬化性充填材２３は、上
述のすき間Ｓおよび分割補強部材２外縁の凹凸２ｂによ
って形成されたすき間、あるいは分割補強部材２と管路
内面１０ａとのすき間等から、リング状補強部材１ごと
に筒長方向に区切られた空隙の区画を既設管の底部側か
ら充填しながら、次の空隙区画へと順次流れ込んで行く
こととなる。Here, as in the case of FIG. 10 which is a conventional example, when the curable filler 23 is injected into the gap between the inner surface member 22 and the conduit inner surface 10a, the curable filler 23 is the same as described above. Due to the gap S formed by the gap S and the concave and convex portions 2b of the outer edge of the split reinforcing member 2, or the gap between the split reinforcing member 2 and the inner surface 10a of the pipe line, a gap is divided in the cylinder length direction for each ring-shaped reinforcing member 1. While filling the compartment from the bottom side of the existing pipe, it will flow into the next void compartment in sequence.
【００２５】この硬化性充填材２３の注入時において、
特に注目すべき点は、図３のように、既設管路１０の底
部近傍に設置された分割補強部材２であっても、筒長方
向に連続するすき間Ｓによって、硬化性充填材２３の管
路筒長方向の流動がスムーズに維持される点である。こ
のような既設管路の補修構造は、長尺の内面部材２２
が、同じく長尺の嵌合部材２１を介してリング状補強部
材に取り付けられているため、継ぎ目の無い水密構造が
特徴である。そのため、管内に残った滞留水や空気も、
この内面部材２２と既設管内面１０ａとの間に密閉され
た状態となってしまう。しかしながら、本実施の形態に
おける既設管路の補修構造は、この筒長方向に連続する
すき間Ｓによって、硬化性充填材２３の注入によって押
し出されてきた管内の滞留水や空気が、管路筒長方向へ
容易に移動することができるため、硬化性充填材２３の
未充填部位の発生を未然に防止することが可能となる。At the time of injecting the curable filler 23,
Particularly noteworthy is that even in the case of the split reinforcing member 2 installed near the bottom of the existing pipeline 10 as shown in FIG. 3, the pipe of the curable filler 23 is formed by the gap S continuous in the cylinder length direction. This is the point that the flow in the lengthwise direction of the road cylinder is maintained smoothly. Such an existing pipeline repair structure has a long inner surface member 22.
However, since it is attached to the ring-shaped reinforcing member via the elongated fitting member 21 as well, it is characterized by a seamless watertight structure. Therefore, the accumulated water and air remaining in the pipe
The inner surface member 22 and the existing inner surface 10a of the pipe are hermetically sealed. However, in the repair structure for the existing pipeline in the present embodiment, the retained water and air in the pipe pushed out by the injection of the curable filler 23 due to the gap S continuous in the cylinder length direction, Since it can be easily moved in the direction, it is possible to prevent the unfilled portion of the curable filler 23 from occurring.
【００２６】また、この切り込み２ｄは、硬化性充填材
２３が入り込んだ状態で硬化するため、アンカー効果に
より硬化性充填材２３とリング状補強部材１との相互の
結合力を高める効果を奏することもできる。Further, since the notch 2d cures in a state where the curable filler 23 enters, it has the effect of increasing the mutual bonding force between the curable filler 23 and the ring-shaped reinforcing member 1 by the anchor effect. You can also
【００２７】なお、以上の実施の形態においては、円筒
状の既設管１０の補修に本発明を適用した例を説明した
が、本発明の分割補強部材２は、底面が直線状で底部近
傍に硬化性充填材の未充填部位が生じる可能性の高い馬
蹄形管や矩形管（ボックスカルバート）等の既設管の補
修に採用すれば、更に高い効果を発揮でき得ることは言
うまでもない。In the above embodiment, an example in which the present invention is applied to repair the existing cylindrical pipe 10 has been described, but the split reinforcing member 2 of the present invention has a linear bottom surface and is located near the bottom. Needless to say, if it is used for repairing an existing pipe such as a horseshoe-shaped pipe or a rectangular pipe (box culvert) where there is a high possibility that an unfilled portion of the curable filler will occur, it is possible to achieve even higher effects.
【００２８】また、以上の実施の形態で用いた分割補強
部材２の形状加工方法は、特に限定されるものではない
が、この加工にレーザー加工を用いた場合、従来、別の
工程で行っていた分割補強部材２の輪郭を形成する加工
と、貫通孔２ｃを形成する加工とを、同時に行うことが
できるようになり、好適である。そして、分割補強部材
２に形成される切り込み２ｄの形状も、この例に限定さ
れることなく、図４に示すようなテーパー状の切り込み
２ｅ，２ｅ，・・・や、その他の形状を採用しても良
い。Further, the method of processing the shape of the divided reinforcing member 2 used in the above-mentioned embodiments is not particularly limited, but when laser processing is used for this processing, it is conventionally performed in another step. This is preferable because the processing for forming the contour of the divided reinforcing member 2 and the processing for forming the through hole 2c can be performed at the same time. The shape of the cut 2d formed in the split reinforcing member 2 is not limited to this example, and tapered cuts 2e, 2e, ... As shown in FIG. May be.
【００２９】また更に、分割補強部材２の結合に使用さ
れる結合部材３も、既設管路１０の底部近傍に設置され
る場合も考えられるため、分割補強部材２と同様の切り
込みを形成しておくことが望ましい。Furthermore, since the connecting member 3 used for connecting the split reinforcing member 2 may be installed near the bottom of the existing pipeline 10, the same cut as the split reinforcing member 2 is formed. It is desirable to set it.
【００３０】[0030]
【発明の効果】以上詳述したように、既設管路の補修に
本発明の分割補強部材用いることにより、既設管路の底
部近傍においても、硬化性充填材の注入によって押し出
されてきた滞留水や空気の通り道が確保され、硬化性充
填材の未充填部位の発生を防止することができる。As described in detail above, by using the split reinforcing member of the present invention for repairing the existing pipeline, the accumulated water extruded by the injection of the curable filler even near the bottom of the existing pipeline. The passage of air and air is secured, and it is possible to prevent the generation of unfilled parts of the curable filler.
【００３１】また、この分割補強部材の切り込みは、補
強体と硬化性充填材の相互の結合力を高め、より安定し
た強度の補修構造を得ることができる。Further, the notch of the divided reinforcing member enhances the mutual bonding force between the reinforcing body and the curable filler, and a repair structure having more stable strength can be obtained.
【００３２】そして、分割補強部材の構造として、この
切り込みが貫通孔に連通している構造を採用することに
より、従来、別の工程で行っていた補強部材の輪郭を形
成する加工と、貫通孔を形成する加工とを同時に行うこ
とができるようになり、補強部材の加工費の削減効果を
奏することができる。By adopting a structure in which the notch communicates with the through hole as the structure of the divided reinforcing member, the processing for forming the contour of the reinforcing member, which has conventionally been performed in another step, and the through hole. It becomes possible to simultaneously perform the processing for forming the, and the effect of reducing the processing cost of the reinforcing member can be achieved.
【図１】本発明の実施の形態における既設管路の補修方
法を示す説明図で、既設管１０の内部にリング状補強部
材１を組み立てた状態を示す横断面図である。FIG. 1 is an explanatory view showing a method for repairing an existing pipe according to an embodiment of the present invention, and is a cross-sectional view showing a state where a ring-shaped reinforcing member 1 is assembled inside an existing pipe 10.
【図２】本発明の実施の形態における分割補強部材２の
切り込み形状を示す図１のＰ部拡大図である。FIG. 2 is an enlarged view of a P portion in FIG. 1 showing a cut shape of the split reinforcing member 2 according to the embodiment of the present invention.
【図３】本発明の実施の形態における既設管１０の底部
近傍の補修構造を示す要部拡大図である。FIG. 3 is an enlarged view of essential parts showing a repair structure near the bottom of the existing pipe in the embodiment of the present invention.
【図４】本発明の実施の形態における分割補強部材２の
別の切り込み形状を示す要部拡大図である。FIG. 4 is an enlarged view of a main part showing another cut shape of the split reinforcing member 2 according to the embodiment of the present invention.
【図５】従来の既設管路の補修方法を示す説明図で、既
設管１０の内部にリング状補強部材１を組み立てた状態
を示す横断面図である。FIG. 5 is an explanatory view showing a conventional method for repairing an existing pipe line, and is a transverse cross-sectional view showing a state where the ring-shaped reinforcing member 1 is assembled inside the existing pipe 10.
【図６】従来の既設管路の補修方法を示す説明図で、リ
ング状補強部材１を連結部材４によって筒長方向に一体
化した状態を示す縦断面図である。FIG. 6 is an explanatory view showing a conventional method for repairing an existing pipeline, and is a vertical cross-sectional view showing a state in which the ring-shaped reinforcing member 1 is integrated by a connecting member 4 in the cylinder length direction.
【図７】従来の既設管路の補修方法を示す説明図で、リ
ング状補強部材１に嵌合部材２１を取り付けた状態を示
す横断面図である。FIG. 7 is an explanatory view showing a conventional method for repairing an existing pipeline, and is a cross-sectional view showing a state in which a fitting member 21 is attached to the ring-shaped reinforcing member 1.
【図８】従来の既設管路の補修方法を示す説明図で、嵌
合部材２１に内面部材２２を取り付けた状態を示す横断
面図である。FIG. 8 is an explanatory view showing a conventional method for repairing an existing pipeline, and is a cross-sectional view showing a state in which an inner surface member 22 is attached to a fitting member 21.
【図９】図８のＸ−Ｘ線矢視断面図である。9 is a cross-sectional view taken along the line XX of FIG.
【図１０】従来の既設管路の補修構造を示す横断面図で
ある。FIG. 10 is a cross-sectional view showing a conventional repair structure for an existing pipeline.
【図１１】従来の既設管路の補修構造を示す既設管１０
底部近傍の拡大図である。FIG. 11 is an existing pipe 10 showing a conventional structure for repairing an existing pipe.
It is an enlarged view of the bottom vicinity.
１ リング状補強部材 ２ 分割補強部材 ２ａ 嵌合用凹部 ２ｂ 凹凸 ２ｃ 貫通孔 ２ｄ，２ｅ 切り込み ２ｆ 開環部位 ３ 結合部材 ３ｃ 貫通孔 ４ 連結部材 ４ａ パイプ材 ４ｂ ボルト ４ｃ ナット １０ 既設管 １０ａ 管路内面 ２１ 嵌合部材 ２２ 内面部材 ２３ 硬化性充填材 Ｒ 未充填部位 Ｓ すき間 1 Ring-shaped reinforcing member 2 split reinforcement members 2a Fitting recess 2b unevenness 2c through hole 2d, 2e cut 2f Ring-opening site 3 coupling members 3c through hole 4 connecting members 4a Pipe material 4b bolt 4c nut 10 Existing pipe 10a Pipe inner surface 21 Fitting member 22 Inner member 23 Curable filler R unfilled part S gap
───────────────────────────────────────────────────── フロントページの続き (72)発明者 鈴木 崇之 大阪府東大阪市荒川２−18−17 Ｆターム(参考） 2D055 AA04 BB01 CA04 JA00 KB03 KB11 LA16 2D063 EA07 EA08 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Takayuki Suzuki 2-18-17 Arakawa, Higashi-Osaka City, Osaka Prefecture F-term (reference) 2D055 AA04 BB01 CA04 JA00 KB03 KB11 LA16 2D063 EA07 EA08
Claims (4)
て当該管路内面に沿ったリング状補強部材を組み立て、
そのリング状補強部材を既設管路筒長方向に複数個配置
して、連結部材で相互に一体化することにより、既設管
路内面に略沿った中空骨組み状の補強体を構築するとと
もに、その補強体の内側に複数の内面部材を取り付け
て、既設管路内面の筒長方向に沿った筒状に組み立てた
後、内面部材と既設管路内面との間の空隙内に硬化性充
填材を注入する既設管路の補修に使用される補修部材に
おいて、 前記分割補強部材の内縁には、前記内面部材に接するよ
うにして既設管路筒長方向両側の空間を連通させる切り
込みが形成されていることを特徴とする既設管路の補修
部材。1. A ring-shaped reinforcing member is assembled along an inner surface of a pipeline by using a plurality of divided reinforcing members in an existing pipeline.
By arranging a plurality of the ring-shaped reinforcing members in the existing pipe tube length direction and mutually integrating them with the connecting member, a hollow frame-shaped reinforcing body that is substantially along the inner surface of the existing pipe is constructed, and After mounting a plurality of inner surface members inside the reinforcing body and assembling into a tubular shape along the tube length direction of the inner surface of the existing pipeline, a curable filler is placed in the space between the inner surface member and the inner surface of the existing pipeline. In a repair member used for repairing an existing pipeline to be injected, an inner edge of the split reinforcing member is formed with a notch that is in contact with the inner surface member and that communicates spaces on both sides in the existing pipeline tube length direction. A repair member for an existing pipeline, which is characterized in that
記リング状補強部材を一体化する際に、当該連結部材を
貫通させる貫通孔に連通していることを特徴とする請求
項１に記載の既設管路の補修部材。2. The existing structure according to claim 1, wherein the notch communicates with a through hole that allows the connecting member to penetrate when the ring-shaped reinforcing member is integrated with the connecting member. Repairing material for pipelines.
うように組み立ててなるリング状補強部材が、既設管路
筒長方向に複数個配置され、その各リング状補強部材が
連結部材により相互に一体化されて中空骨組み状の補強
体が構築され、その補強体の内側に取り付けられた複数
の内面部材と既設管路内面との間の空隙内に、硬化性充
填材が充填されてなる既設管路の補修構造において、 前記分割補強部材に、請求項１または２に記載の分割補
強部材が用いられ、その各分割補強部材に形成されてい
る切り込みに硬化性充填材が充填されていることを特徴
とする既設管路の補修構造。3. A plurality of ring-shaped reinforcing members formed by assembling a plurality of divided reinforcing members along the inner surface of the existing conduit are arranged in the longitudinal direction of the existing conduit, and each of the ring-shaped reinforcing members is connected by a connecting member. A hollow frame-shaped reinforcement body is constructed by being integrated with each other, and a curable filler is filled in the space between the plurality of inner surface members attached to the inside of the reinforcement body and the inner surface of the existing pipeline. In the repair structure for an existing pipeline, the split reinforcing member according to claim 1 is used as the split reinforcing member, and a notch formed in each split reinforcing member is filled with a curable filler. The existing pipe repair structure characterized by the presence of
の内側に装着された複数の嵌合部材を介して、前記補強
体に取り付けられていることを特徴とする請求項３に記
載の既設管路の補修構造。4. The existing structure according to claim 3, wherein the inner surface member is attached to the reinforcing body via a plurality of fitting members mounted inside the ring-shaped reinforcing member. Pipe line repair structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002138419A JP4033335B2 (en) | 2002-05-14 | 2002-05-14 | Repair members and repair structure of existing pipelines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002138419A JP4033335B2 (en) | 2002-05-14 | 2002-05-14 | Repair members and repair structure of existing pipelines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003328430A true JP2003328430A (en) | 2003-11-19 |
| JP4033335B2 JP4033335B2 (en) | 2008-01-16 |
Family
ID=29699863
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002138419A Expired - Fee Related JP4033335B2 (en) | 2002-05-14 | 2002-05-14 | Repair members and repair structure of existing pipelines |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005240969A (en) * | 2004-02-27 | 2005-09-08 | Kubota Corp | Method of regenerating existing tube |
| JP2007023521A (en) * | 2005-07-13 | 2007-02-01 | Ashimori Ind Co Ltd | Pipeline and repair structure of pipeline |
| JP2007085031A (en) * | 2005-09-20 | 2007-04-05 | Takiron Co Ltd | Repairing structure of existing pipe |
| JP2008095368A (en) * | 2006-10-11 | 2008-04-24 | Ashimori Ind Co Ltd | Method of reinforcing structure wall |
| JP2008095370A (en) * | 2006-10-11 | 2008-04-24 | Ashimori Ind Co Ltd | Tool for fitting member |
| WO2008075406A1 (en) | 2006-12-19 | 2008-06-26 | Ashimori Industry Co., Ltd. | Conduit repair structure |
| JP2011190683A (en) * | 2011-07-06 | 2011-09-29 | Ashimori Industry Co Ltd | Repair structure of conduit |
| JP2016098835A (en) * | 2014-11-18 | 2016-05-30 | 芦森工業株式会社 | Repair method for existing pipe line and repair member |
-
2002
- 2002-05-14 JP JP2002138419A patent/JP4033335B2/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005240969A (en) * | 2004-02-27 | 2005-09-08 | Kubota Corp | Method of regenerating existing tube |
| JP2007023521A (en) * | 2005-07-13 | 2007-02-01 | Ashimori Ind Co Ltd | Pipeline and repair structure of pipeline |
| JP2007085031A (en) * | 2005-09-20 | 2007-04-05 | Takiron Co Ltd | Repairing structure of existing pipe |
| JP4549268B2 (en) * | 2005-09-20 | 2010-09-22 | タキロン株式会社 | Repair structure of existing pipe |
| JP2008095368A (en) * | 2006-10-11 | 2008-04-24 | Ashimori Ind Co Ltd | Method of reinforcing structure wall |
| JP2008095370A (en) * | 2006-10-11 | 2008-04-24 | Ashimori Ind Co Ltd | Tool for fitting member |
| WO2008075406A1 (en) | 2006-12-19 | 2008-06-26 | Ashimori Industry Co., Ltd. | Conduit repair structure |
| US8327886B2 (en) | 2006-12-19 | 2012-12-11 | Ashimori Industry Co., Ltd. | Conduit repair structure |
| JP2011190683A (en) * | 2011-07-06 | 2011-09-29 | Ashimori Industry Co Ltd | Repair structure of conduit |
| JP2016098835A (en) * | 2014-11-18 | 2016-05-30 | 芦森工業株式会社 | Repair method for existing pipe line and repair member |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4033335B2 (en) | 2008-01-16 |
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