JP2001159476A - Lining construction method for existing pipe passage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lining construction method for a pipe passage, allowing easy formation of a reclaimed pipe passage for draining water entering through a crack in the existing pipe passage to the outside. SOLUTION: This lining construction method comprises continuously supplying into the existing pipe passage 2 a long band material, having joint portions formed at both edges, while spirally winding the same, joining the adjacent joint portions to form a lining pipe P containing a spiral pipe, and then filling a backing material to be hardened in a gap between the existing pipe passage 2 and the lining pipe P. A water-permeable sheet 3 formed of material which permits the permeation of water into the inner face of the existing pipe passage P but inhibits the permeation of the backing material is pasted on the lining pipe P, before formed, throughout its length in the axial direction.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、既設管路とライニ
ング管との間隙に充填された裏込め材層中に排水路を形
成する既設管路のライニング施工方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for lining an existing pipeline in which a drainage channel is formed in a backfill material layer filled in a gap between the existing pipeline and a lining pipe.

【０００２】[0002]

【従来の技術】従来、上下水道や隧道等において、既設
管、管渠又は隧道等の既設管路が老朽化し、漏水を引き
起こしていたり崩壊のおそれがある場合、その既設管路
内に新たなライニング管を形成し、既設管路とライニン
グ管との間隙に裏込め材を注入・硬化させる工法が実施
されている。特に、ライニング管として、両側縁部に接
合部が形成された長尺の帯状部材を連続的に供給すると
ともに螺旋状に巻回し、相接する接合部同士を接合させ
ることにより形成した螺旋管を用いる技術が開発・実用
化されている。2. Description of the Related Art Conventionally, in existing water pipes, sewers, tunnels, and the like, when existing pipes such as existing pipes, culverts, and tunnels are deteriorated and cause leakage or collapse, new pipes are installed in the existing pipes. A method of forming a lining pipe and injecting and hardening a backfill material into a gap between an existing pipe line and the lining pipe has been implemented. In particular, as the lining pipe, a spiral pipe formed by continuously supplying a long band-shaped member having joints formed on both side edges and winding it spirally, and joining the joined joints to each other. The technology used has been developed and put into practical use.

【０００３】この工法においては、ライニング管には、
既設管路の内外水圧に対して漏水を遮断し、裏込め材の
注入時に裏込め材が漏れないようにするため、水密性が
要求される。In this method, the lining pipe is
Watertightness is required in order to block water leakage against the internal and external water pressures of the existing pipeline and prevent the backfill material from leaking when the backfill material is injected.

【０００４】しかしながら、この工法により成形され地
中に埋設されている更生管路においては、地下水位が高
いと大きな地下水圧がかかってしまう。この場合、既設
管路は老朽化していることが多いため、この水圧によっ
て既設管路の亀裂等を伝わって浸入してきた水は裏込め
材層やライニング管に達し、裏込め材層やライニング管
を破壊してしまうおそれがあった。However, in a rehabilitation pipeline formed by this method and buried in the ground, a high groundwater level causes a large groundwater pressure. In this case, the existing pipeline is often deteriorated, and the water that has penetrated through the cracks in the existing pipeline due to this water pressure reaches the backing material layer and the lining pipe, and the backing material layer and the lining pipe. Could be destroyed.

【０００５】[0005]

【発明が解決しようとする課題】本発明は、上記のよう
な従来の問題点を解消し、既設管路の亀裂等を伝わって
浸入してくる水を外部に排水できるようにした更生管路
を容易に形成することができる既設管路のライニング施
工方法を提供することを目的としてなされたものであ
る。DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned conventional problems and rehabilitates pipelines that can drain water entering through cracks in existing pipelines. The purpose of the present invention is to provide a method for lining an existing pipeline that can easily form a pipe.

【０００６】[0006]

【課題を解決するための手段】本願の請求項１に記載の
発明（本発明１）は、既設管路内において、両側縁部に
接合部が形成された長尺の帯状部材を連続的に供給する
とともに螺旋状に巻回し、相接する接合部同士を接合さ
せることにより螺旋管からなるライニング管を形成した
後、既設管路とライニング管との間隙に裏込め材を注入
・硬化させる既設管路のライニング施工方法であって、
前記ライニング管の形成前に、予め前記既設管路内面に
水分は透過させるが裏込め材は通過させない材料からな
る透水シートをその軸方向に沿って全長にわたって貼付
しておく既設管路のライニング施工方法である。According to the first aspect of the present invention, a long strip-shaped member having joints formed at both side edges is continuously formed in an existing pipeline. After supplying, spirally winding and joining the joints that are in contact with each other, forming a lining pipe consisting of a spiral pipe, then injecting and hardening the backfill material into the gap between the existing pipeline and the lining pipe A method of lining a pipeline,
Before forming the lining pipe, a permeable sheet made of a material that allows moisture to permeate the inner surface of the existing pipe but does not allow the backfill material to pass through the entire length of the existing pipe along the axial direction thereof is lined. Is the way.

【０００７】本発明１において、透水シートとしては、
例えば、長手方向に連続した気泡（空隙）を有する多孔
質体や、長手方向に繊維方向が連続し、その繊維間に適
度な空隙を有する繊維束等が好適に使用される。その空
隙は、水分は透過させるが裏込め材は通過させないよう
な大きさでなければならず、通常数十ｕｍ〜０．数ｍｍ
程度が適している。In the first aspect of the present invention, the permeable sheet includes
For example, a porous body having cells (voids) continuous in the longitudinal direction, a fiber bundle in which the fiber direction is continuous in the longitudinal direction, and an appropriate void between the fibers, and the like are preferably used. The voids must be of a size that allows moisture to pass through but does not allow the backfill material to pass through, and is usually several tens μm to 0.1 μm. Several mm
The degree is suitable.

【０００８】透水シートの厚みは、特に限定されない
が、あまり薄いと裏込め材注入時に破れてしまったり、
裏込め材の注入圧力で潰されてしまったりするするおそ
れがあり、あまり厚いとその部分の裏込め材層の厚さが
薄くなり管路の強度に影響を及ぼすおそれがあるため、
現実的には１〜１０ｍｍ程度が最適である。[0008] The thickness of the water-permeable sheet is not particularly limited, but if it is too thin, it will break when the backfill material is injected,
There is a risk that it will be crushed by the injection pressure of the backfill material, and if it is too thick, the thickness of the backfill material layer in that part will be thin and it may affect the strength of the pipeline,
Actually, about 1 to 10 mm is optimal.

【０００９】透水シートの幅、敷設枚数及び設置位置と
しては、既設管路の大きさ、漏水の箇所、腐食の程度等
によって適宜決められるが、あまり、幅を大きく、枚数
を多くすると既設管路と裏込め材層との付着部分が少な
くなり、これも管路全体の強度に影響を及ぼすおそれが
あるため、管路毎に事前に検討する必要がある。The width of the water-permeable sheet, the number of sheets to be laid, and the installation position are appropriately determined depending on the size of the existing pipeline, the location of water leakage, the degree of corrosion, and the like. There is less possibility of adhesion between the backing material layer and the backing material layer, which may affect the strength of the entire pipeline.

【００１０】透水シートの既設管路内面への貼付方法と
しては、粘着剤による貼り付ける方法や釘を打ちつける
方法等、水の通過を阻害しない方法であれば適宜採用す
ることができる。As a method of attaching the water-permeable sheet to the inner surface of the existing pipeline, any method that does not hinder the passage of water, such as a method of attaching with an adhesive or a method of hitting a nail, can be adopted as appropriate.

【００１１】透水シートは、管路の途中で発生する水を
逃がす必要があるため、管路の長手方向の全長にわたっ
て設けるのが好ましい。The water permeable sheet is preferably provided over the entire length of the pipe in the longitudinal direction, since it is necessary to allow water generated in the middle of the pipe to escape.

【００１２】本願の請求項２に記載の発明（本発明２）
は、既設管路内において、両側縁部に接合部が形成され
た長尺の帯状部材を連続的に供給するとともに螺旋状に
巻回し、相接する接合部同士を接合させることにより螺
旋管からなるライニング管を形成した後、既設管路とラ
イニング管との間隙に裏込め材を注入・硬化させる既設
管路のライニング施工方法であって、前記ライニング管
の形成前に、予め前記既設管路内面に裏込め材が化学的
・物理的に付着しない材料からなる細長いシートをその
軸方向に沿って全長にわたって貼付しておく既設管路の
ライニング施工方法である。The invention described in claim 2 of the present application (the present invention 2)
In an existing pipeline, a long band-shaped member having joints formed on both side edges is continuously supplied and spirally wound, and the spiral joints are joined by joining the joints that are in contact with each other. A lining construction method for an existing pipeline in which a backfill material is injected and hardened into a gap between the existing pipeline and the lining pipe after forming the lining pipe, and the existing pipeline is formed before the lining pipe is formed. This is a lining construction method for an existing pipeline in which an elongated sheet made of a material to which a backfill material does not chemically or physically adhere to the inner surface is applied over the entire length along the axial direction.

【００１３】本発明２において、細長いシートの材質と
しては、例えば、ポリエチレン、ポリ塩化ビニル等の合
成樹脂が、無機材質の裏込め材（モルタル等）と化学的
に付着しにくいため最適である。細長いシートには裏込
め材は見た目には付着するが、水圧がかかればすぐに剥
離し、その間隙に水の通り道ができることとなる。In the present invention 2, as the material of the elongated sheet, for example, a synthetic resin such as polyethylene or polyvinyl chloride is most suitable because it does not easily chemically adhere to an inorganic backing material (such as mortar). The backing material adheres visually to the elongated sheet, but peels off immediately when water pressure is applied, and a water passage is formed in the gap.

【００１４】細長いシートの厚みは、特に限定されない
が、あまり薄いと裏込め材注入時に破れてしまうおそれ
があり、あまり厚いとその部分の裏込め材層の厚さが薄
くなり管路の強度に影響を及ぼすおそれがあるため、現
実的には１〜１０ｍｍ程度が最適である。The thickness of the elongated sheet is not particularly limited. However, if the sheet is too thin, the sheet may be broken at the time of filling the backing material. If the sheet is too thick, the thickness of the backing material layer at that portion becomes thin and the strength of the pipeline is reduced. In practice, it is optimal to be about 1 to 10 mm because of the possibility of influencing.

【００１５】細長いシートの幅、敷設枚数及び設置位置
としては、既設管路の大きさ、漏水の箇所、腐食の程度
等によって適宜決められるが、あまり、幅を大きく、枚
数を多くすると既設管路と裏込め材層との付着部分が少
なくなり、これも管路全体の強度に影響を及ぼすおそれ
があるため、管路毎に事前に検討する必要がある。The width of the elongated sheet, the number of sheets to be laid, and the installation position are appropriately determined depending on the size of the existing pipeline, the location of water leakage, the degree of corrosion, and the like. There is less possibility of adhesion between the backing material layer and the backing material layer, which may affect the strength of the entire pipeline.

【００１６】細長いシートの既設管路内面への貼付方法
としては、粘着剤による貼り付ける方法や釘を打ちつけ
る方法等適宜採用することができる。As a method for attaching the elongated sheet to the inner surface of the existing pipeline, a method of attaching with an adhesive, a method of hitting a nail, and the like can be appropriately adopted.

【００１７】細長いシートは、管路の途中で発生する水
を逃がす必要があるため、管路の長手方向の全長にわた
って設けるのが好ましい。The elongated sheet is preferably provided over the entire length of the pipe in the longitudinal direction because it is necessary to allow water generated in the pipe to escape.

【００１８】本願の請求項３に記載の発明（本発明３）
は、既設管路内において、両側縁部に接合部が形成され
た長尺の帯状部材を連続的に供給するとともに螺旋状に
巻回し、相接する接合部同士を接合させることにより螺
旋管からなるライニング管を形成した後、既設管路とラ
イニング管との間隙に裏込め材を注入・硬化させる既設
管路のライニング施工方法であって、予め巻回前の前記
帯状部材の螺旋管を形成したときに外面となる部分に、
該帯状部材の長手方向に沿う全長にわたって離型剤層を
設けておく既設管路のライニング施工方法である。The invention described in claim 3 of the present application (the present invention 3)
In an existing pipeline, a long band-shaped member having joints formed on both side edges is continuously supplied and spirally wound, and the spiral joints are joined by joining the joints that are in contact with each other. A method of lining an existing pipe line in which a backfill material is injected and hardened into a gap between the existing pipe line and the lining pipe after forming the lining pipe, and the spiral pipe of the band-shaped member before winding is formed in advance. When you do,
This is a method for lining an existing pipeline in which a release agent layer is provided over the entire length of the strip-shaped member along the longitudinal direction.

【００１９】本願の請求項４に記載の発明（本発明４）
は、前記離型剤を、前記帯状部材を螺旋状に巻回して螺
旋管を形成する製管機の近傍にて、前記帯状部材の螺旋
管を形成したときに外面となる部分に、該帯状部材の長
手方向に沿う全長にわたって離型剤層を設ける本発明３
の既設管路のライニング施工方法である。The invention described in claim 4 of the present application (Invention 4)
The release agent is wound around the band-shaped member in the vicinity of a tube-forming machine that spirally winds the band-shaped member to form a spiral tube. Invention 3 in which a release agent layer is provided over the entire length along the longitudinal direction of the member
This is the method of lining existing pipelines.

【００２０】本発明３，４において、離型剤としては、
ライニング管への裏込め材の付着を阻害するものであれ
ばよく、ライニング管と裏込め材の材質との関係で適宜
決定されるが、代表的なものとしては、例えば、グリス
やシリコン等が挙げられる。離型剤層が設けられている
部分のライニング管の表面には裏込め材が完全に付着し
ないので、水圧がかかればすぐに剥離し、その間隙に水
の通り道ができることとなる。In the present inventions 3 and 4, the releasing agent includes
Any material that inhibits the adhesion of the backfill material to the lining tube may be used, and is appropriately determined according to the relationship between the lining tube and the material of the backfill material.Typical examples include grease and silicon. No. Since the backfill material does not completely adhere to the surface of the lining tube where the release agent layer is provided, the backing material is immediately peeled off when water pressure is applied, and water passes through the gap.

【００２１】剥離剤層の厚さは、漏水の量や地下水圧、
管径等を考慮して決定されるべきであるが、裏込め材の
注入時に注入圧力で離型剤層が剥離もしくは流出してし
まわない程度以上で、かつ裏込め材層の厚さが薄くなり
管路の強度に影響を及ぼすおそれがない程度の厚さであ
る、０．数ｍｍ〜５ｍｍ程度が望ましい。The thickness of the release agent layer depends on the amount of water leakage, the groundwater pressure,
It should be determined in consideration of the pipe diameter, etc., but the thickness of the backing material layer is thin enough to prevent the release agent layer from peeling or flowing out due to the injection pressure during backfill material injection. The thickness is such that it does not affect the strength of the pipeline. About several mm to 5 mm is desirable.

【００２２】剥離剤層を設ける部分は、帯状部材の螺旋
管を形成したときに外面となる部分に、帯状部材の長手
方向に沿う全長にわたって設けるが、帯状部材の幅方向
には一部のみに止めておく方が好ましい。幅方向の全部
とすると、ライニング管の全外面に裏込め材が付着せ
ず、出来上がった更生管路の強度に影響するおそれがあ
るからである。但し、強度が要求されない場合等には、
ライニング管の全外面に剥離剤層を設けるようにしても
よい。又、浸入してくる水の量が多いときには、離型剤
層の幅（面積）を大きくすれば、水の排出量を多くする
ことができる。The portion where the release agent layer is provided is provided over the entire length along the longitudinal direction of the band-shaped member on the portion which becomes the outer surface when the spiral tube of the band-shaped member is formed, but only partially in the width direction of the band-shaped member. It is preferable to stop it. This is because if the entire length is set in the width direction, the backfill material does not adhere to the entire outer surface of the lining pipe, which may affect the strength of the completed rehabilitation pipe. However, when strength is not required,
A release agent layer may be provided on the entire outer surface of the lining tube. In addition, when the amount of intruding water is large, the discharge amount of water can be increased by increasing the width (area) of the release agent layer.

【００２３】帯状部材の螺旋管を形成したときに外面と
なる部分に、帯状部材の長手方向に沿う全長にわたって
設ける方法としては、帯状部材を螺旋状に巻回して螺旋
管を形成する製管機の近傍にて、離型剤をポンプにて送
り、帯状部材に自動的に塗布する方法や、帯状部材に手
作業により刷毛等を用いて塗布する方法等が用いられる
が、いずれにせよ、製管作業中連続して塗布できる方法
とするのが肝要である。As a method of providing the entire length of the belt-like member along the longitudinal direction on the portion that becomes the outer surface when the spiral tube is formed, a tube-forming machine that spirally winds the belt-like member to form a spiral tube is provided. In the vicinity of the method, a method of sending a release agent by a pump and automatically applying the release agent to the belt-like member or a method of manually applying the release agent to the belt-like member using a brush or the like is used. It is important to use a method that allows continuous application during pipe work.

【００２４】本願の請求項５に記載の発明（本発明５）
は、既設管路内において、両側縁部に接合部が形成され
た長尺の帯状部材を連続的に供給するとともに螺旋状に
巻回し、相接する接合部同士を接合させることにより螺
旋管からなるライニング管を形成した後、既設管路とラ
イニング管との間隙に裏込め材を注入・硬化させる既設
管路のライニング施工方法であって、前記ライニング管
の形成前に、予め前記既設管路内面に、所定間隔毎に周
方向に沿う溝部材と、該溝部材の下端部を軸方向に沿っ
て全長にわたって連結する集水部材を設けておく既設管
路のライニング施工方法である。The invention described in claim 5 of the present application (the present invention 5)
In an existing pipeline, a long band-shaped member having joints formed on both side edges is continuously supplied and spirally wound, and the spiral joints are joined by joining the joints that are in contact with each other. A lining construction method for an existing pipeline in which a backfill material is injected and hardened into a gap between the existing pipeline and the lining pipe after forming the lining pipe, and the existing pipeline is formed before the lining pipe is formed. This is a lining construction method for an existing pipeline in which a groove member extending circumferentially at predetermined intervals and a water collecting member connecting the lower end portion of the groove member along the entire length along the axial direction are provided on the inner surface.

【００２５】本発明５において、溝部材や集水部材とし
ては、例えば、硬質塩化ビニル等の合成樹脂からなるも
のが使用される。In the present invention 5, for the groove member and the water collecting member, for example, those made of synthetic resin such as hard vinyl chloride are used.

【００２６】溝部材の肉厚、溝幅や溝高さとして、裏込
め材の注入圧力で潰されししまうおそれがなく、裏込め
材層の厚さが薄くなって管路の強度に影響を及ぼすおそ
れがない範囲内で、既設管路及びその内部に設けられる
ライニング管の規模や漏水の程度に応じて適宜決定され
る。The thickness of the groove member, the groove width and the groove height do not have the possibility of being crushed by the filling pressure of the backfill material, and the thickness of the backfill material layer is reduced to affect the strength of the conduit. As long as there is no risk of this, it is appropriately determined according to the scale of the existing pipeline and the lining pipe provided therein and the degree of water leakage.

【００２７】溝部材を既設管路内面の周方向に沿って設
ける間隔も、既設管路及びその内部に設けられるライニ
ング管の規模や漏水の程度に応じて適宜決定される。The interval at which the groove members are provided along the circumferential direction of the inner surface of the existing pipeline is appropriately determined according to the scale of the existing pipeline and the lining pipe provided therein and the degree of water leakage.

【００２８】集水部材としては、管状のものであっても
よいし、溝部材と同様の断面形状を有するものであって
もよい。The water collecting member may be a tubular member or a member having the same sectional shape as the groove member.

【００２９】溝部材や集水部材の既設管路内面への取付
け法としては、Ｕ型アンカーで固定する方法等が適宜採
用することができる。As a method of attaching the groove member and the water collecting member to the inner surface of the existing pipeline, a method of fixing with a U-shaped anchor or the like can be appropriately adopted.

【００３０】本願の請求項６に記載の発明（本発明６）
は、前記溝部材および集水部材の少なくとも何れか一方
を、有孔管とする既設管路のライニング施工方法であ
る。The invention described in claim 6 of the present application (Invention 6)
Is a method for lining an existing pipeline in which at least one of the groove member and the water collecting member is a perforated pipe.

【００３１】本発明６において、有孔管としては、管内
外を貫通する複数の孔が穿孔されてなる、例えば、硬質
塩化ビニル等の合成樹脂からなるものが使用される。In the present invention 6, as the perforated pipe, a pipe made of a synthetic resin such as hard vinyl chloride, for example, having a plurality of holes penetrating inside and outside the pipe is used.

【００３２】有孔管の肉厚、管径、孔径さとして、裏込
め材の注入圧力で潰されししまうおそれがなく、裏込め
材層の厚さが薄くなって管路の強度に影響を及ぼすおそ
れがない範囲内で、既設管路及びその内部に設けられる
ライニング管の規模や漏水の程度に応じて適宜決定され
る。The thickness, diameter, and diameter of the perforated pipe are not likely to be crushed by the injection pressure of the backfill material, and the thickness of the backfill layer is reduced, which affects the strength of the pipeline. As long as there is no risk of this, it is appropriately determined according to the scale of the existing pipeline and the lining pipe provided therein and the degree of water leakage.

【００３３】有孔管を既設管路内面の周方向に沿って設
ける間隔も、既設管路及びその内部に設けられるライニ
ング管の規模や漏水の程度に応じて適宜決定される。The interval at which the perforated pipes are provided along the circumferential direction of the inner surface of the existing pipeline is appropriately determined according to the scale of the existing pipeline and the lining pipe provided therein and the degree of water leakage.

【００３４】有孔管の既設管路内面への取付け法として
は、Ｕ型アンカーで固定する方法等が適宜採用すること
ができる。As a method of attaching the perforated pipe to the inner surface of the existing pipeline, a method of fixing with a U-shaped anchor or the like can be appropriately adopted.

【００３５】本願の請求項７に記載の発明（本発明７）
は、有孔管内を閉塞可能で、かつ、この有孔管内から引
き抜き可能となされた挿入体を、有孔管内に挿入してお
き、裏込め材の注入・硬化後、この挿入体を有孔管内か
ら引き抜く本発明６の既設管路のライニング施工方法で
ある。The invention described in claim 7 of the present application (the present invention 7)
Inserts an insert that can be closed in the perforated pipe and can be pulled out from the perforated pipe into the perforated pipe, and after injecting and curing the backfill material, inserts the inserted body into the perforated pipe. It is the lining construction method of the existing pipeline of this invention 6 pulled out from inside a pipe.

【００３６】本発明７において、挿入体としては、有孔
管の断面内形状に合致するようになされた筒状のもので
あってもよいし、有孔管の断面内形状全体を閉塞する柱
状のものであってもよい。また、有孔管内に挿通してお
いて、内部で膨張させることによって有孔管内を閉塞
し、引き抜く際に収縮させるようになされた膨張収縮性
のものであってもよい。In the seventh aspect of the present invention, the insert may be a cylindrical one adapted to conform to the cross-sectional shape of the perforated pipe, or a column-shaped member for closing the entire cross-sectional shape of the perforated pipe. May be used. Further, an inflatable and contractible material that is inserted into a perforated pipe and then expanded inside to close the perforated pipe and contract when pulling out may be used.

【００３７】本発明において、既設管路内において、螺
旋管からなるライニング管を形成する方式としては、製
管機が既設管路の適宜間隔毎に設けられた人孔内等に固
定され、帯状部材を螺旋状に巻回しつつ螺旋管からなる
ライニング管を形成しつつ既設管路内に挿入していく方
式（「元押し製管方式」と呼ぶ）であってもよいし、製
管機自体が既設管路内にて製管ローラを回転しながら帯
状部材を螺旋状に巻回しつつ既設管路内を進行しつつ螺
旋管からなるライニング管を形成していく方式（「自走
式製管方式」と呼ぶ）であってもよい。In the present invention, as a method of forming a lining pipe composed of a spiral pipe in an existing pipeline, a pipe-making machine is fixed in a human hole or the like provided at an appropriate interval of the existing pipeline, and a belt-like pipe is formed. A method in which a member is spirally wound and a lining pipe formed of a spiral pipe is formed and inserted into an existing pipeline (referred to as a "former press pipe making method"), or the pipe making machine itself Is a method of forming a lining pipe consisting of a helical pipe while advancing inside an existing pipe while spirally winding a belt-shaped member while rotating a pipe-making roller in the existing pipe ("Self-propelled pipe manufacturing"). Method).

【００３８】[0038]

【作用】本発明１の既設管路のライニング施工方法は、
前記ライニング管の形成前に、予め前記既設管路内面に
水分は透過させるが裏込め材は通過させない材料からな
る透水シートをその軸方向に沿って貼付しておくことに
より、更生管路における既設管路の内面と裏込め材との
間に、透水シートからなる水を通す道がその軸方向の全
長にわたって設けられるので、水圧によって既設管路の
亀裂等を伝わって浸入してきた水はその水を通す道を通
過して外部に排水されることとなり、ライニング管や裏
込め材層を破損することがなくなる。The lining construction method of the existing pipeline of the present invention 1 is as follows.
Prior to the formation of the lining pipe, a water-permeable sheet made of a material that allows moisture to permeate but does not allow the backfill material to pass through the inner surface of the existing pipe in advance is applied along the axial direction of the pipe so that the existing pipe in the rehabilitation pipe can be installed. A water passage made of a water-permeable sheet is provided between the inner surface of the pipeline and the backfill material over the entire length in the axial direction, so that water that has penetrated through cracks in the existing pipeline due to water pressure is It is drained to the outside through the passage through which the lining pipe and the backing material layer are not damaged.

【００３９】本発明２の既設管路のライニング施工方法
は、前記ライニング管の形成前に、予め前記既設管路内
面に裏込め材が化学的・物理的に付着しない材料からな
る細長いシートをその軸方向に沿って貼付しておくこと
により、更生管路における既設管路の内面と裏込め材と
の間に、細長いシートからなる層がその全長にわたって
設けられており、その部分では、既設管路の内面に裏込
め材が完全に付着せず、水圧がかかればすぐに剥離し、
その間隙に水の通り道ができるので、水圧によって既設
管路の亀裂等を伝わって浸入してきた水は、その水を通
す道を通過して外部に排水されることとなり、ライニン
グ管や裏込め材層を破損することがなくなる。In the method of lining an existing pipeline according to the second aspect of the present invention, before forming the lining pipe, an elongated sheet made of a material to which a backfill material does not chemically or physically adhere to the inner surface of the existing pipeline is used. By sticking along the axial direction, a layer consisting of an elongated sheet is provided over the entire length between the inner surface of the existing pipeline in the rehabilitation pipeline and the backfill material, and in that portion, the existing pipe is provided. The backfill material does not completely adhere to the inner surface of the road and peels off immediately when water pressure is applied,
Since water passes through the gap, water that has penetrated through the cracks in the existing pipeline due to water pressure will be drained to the outside through the water passage, and the lining pipe and backing material The layers are not damaged.

【００４０】本発明３の既設管路のライニング施工方法
は、予め巻回前の前記長尺の帯状部材の螺旋管を形成し
たときに外面となる部分に長手方向に沿って離型剤層を
設けておくことにより、更生管路におけるライニング管
の外面に離型剤層に基づく裏込め材が完全に付着しない
部分が螺旋状にその全長にわたって設けられており、水
圧がかかればすぐに剥離し、その間隙に水の通り道がで
きるので、水圧によって既設管路の亀裂等を伝わって浸
入してきた水は、その水を通す道を通過して外部に排水
されることとなり、ライニング管や裏込め材層を破損す
ることがなくなる。According to a third aspect of the present invention, in the method of lining an existing pipeline, a release agent layer is formed along a longitudinal direction on a portion to be an outer surface when a spiral tube of the long belt-like member before winding is formed. By providing this, a portion where the backfill material based on the release agent layer does not completely adhere to the outer surface of the lining pipe in the rehabilitation pipeline is provided spirally over its entire length, and it is easily peeled off when water pressure is applied. There is a water passage in the gap, so the water that has penetrated through the cracks in the existing pipeline due to the water pressure will be drained to the outside through the water passage, and will be drained to the outside. The material layer is not damaged.

【００４１】本発明４の既設管路のライニング施工方法
は、前記離型剤を、前記帯状部材を螺旋状に巻回して螺
旋管を形成する製管機の近傍にて、前記帯状部材の螺旋
管を形成したときに外面となる部分に、該帯状部材の長
手方向に沿う全長にわたって離型剤層を設けることによ
り、ライニング管の外面に離型剤層に基づく裏込め材が
完全に付着しない部分が螺旋状にその全長にわたって設
けた更生管路を容易に形成することができる。According to a fourth aspect of the present invention, in the method for lining an existing pipeline, the release agent is spirally wound around the band-shaped member near a pipe-forming machine which spirally winds the band-shaped member to form a spiral tube. By providing the release agent layer over the entire length along the longitudinal direction of the band-shaped member on the portion that becomes the outer surface when the tube is formed, the backing material based on the release agent layer does not completely adhere to the outer surface of the lining tube It is easy to form a rehabilitation pipeline whose part is provided spirally over its entire length.

【００４２】本発明５の既設管路のライニング施工方法
は、前記ライニング管の形成前に、予め前記既設管路内
面に、所定間隔毎に周方向に沿う溝部材と、該溝部材の
下端部を軸方向に沿って連結する集水部材を設けておく
ことにより、更生管路における既設管路の内面と裏込め
材層との間に、溝部材と集水部材とからなる水を通す道
が形成されるので、水圧によって既設管路の亀裂等を伝
わって浸入してきた水は、その水を通す道を通過して外
部に排水されることとなり、ライニング管や裏込め材層
を破損することがなくなる。According to a fifth aspect of the present invention, there is provided a method of lining an existing pipeline, comprising: forming a groove member along a circumferential direction at predetermined intervals on an inner surface of the existing pipeline before forming the lining pipe; Is provided along the axial direction, thereby providing a path for passing water formed by the groove member and the water collecting member between the inner surface of the existing pipe and the backfill material layer in the rehabilitating pipeline. Is formed, so that water that has penetrated through cracks in the existing pipeline due to water pressure will be drained to the outside through the water passage, and will damage the lining pipe and backfill material layer Disappears.

【００４３】本発明６の既設管路のライニング施工方法
は、前記本発明５における溝部材と集水部材とからなる
水を通す道のうち、少なくとも何れか一方を有孔管とす
ることにより、排水性が良くなるので、水圧によって既
設管路の亀裂等を伝わって浸入してきた水は、その水を
通す道を通過して外部に排水されることとなり、ライニ
ング管や裏込め材層を破損することがなくなる。The method for lining an existing pipeline according to the sixth aspect of the present invention is characterized in that at least one of the water passages comprising the groove member and the water collecting member according to the fifth aspect of the present invention is a perforated pipe. As water drainage is improved, water that has penetrated through cracks in existing pipelines due to water pressure will be drained to the outside through the water passage, causing damage to the lining pipe and backfill material layer. Will not be done.

【００４４】本発明７の既設管路のライニング方法は、
有孔管内を閉塞可能で、かつ、この有孔管内から引き抜
き可能となされた挿入体を有孔管内に挿入しておき、裏
込め材の注入・硬化後、有孔管内から挿入体を引き抜く
ことにより、有孔管内に裏込め材が浸入・硬化して有孔
管内が閉塞されるのを防止することができ、有孔管から
なる水を通す道を確実に形成することができる。The lining method of the existing pipeline of the present invention 7 is as follows.
Inserting an insert that can close the perforated pipe and that can be withdrawn from the perforated pipe into the perforated pipe, and pulling out the inserted body from the perforated pipe after injecting and curing the backfill material Accordingly, it is possible to prevent the backfill material from invading and hardening into the perforated pipe to block the inside of the perforated pipe, and to reliably form a water passage made of the perforated pipe.

【００４５】[0045]

【発明の実施の形態】以下、本発明の実施の形態を図面
を参照して説明する。Embodiments of the present invention will be described below with reference to the drawings.

【００４６】図１は本発明の既設管路のライニング施工
方法に使用される帯状部材の一例を示す断面図である。FIG. 1 is a sectional view showing an example of a belt-like member used in the method for lining an existing pipeline according to the present invention.

【００４７】帯状部材１は、帯状基板１１の片面の一側
端に一方の接合部である突条１２が突設されている。突
条１２は支柱部１２１とその先端に設けられた断面円形
の挿入部１２２からなる。The strip-shaped member 1 is provided with a ridge 12 as one joining portion at one end of one side of the strip-shaped substrate 11. The protruding ridge 12 includes a support portion 121 and an insertion portion 122 having a circular cross section provided at the tip thereof.

【００４８】帯状基板１１の他の片面の他端から適宜距
離を隔てて段部１３が設けられ、段部１３には他方の接
合部である凹溝部１４が設けられている。凹溝部１４に
は奥広がりの凹溝が設けられた被挿入部１４１とフラン
ジ１４２が設けられている。被挿入部１４１内には隣接
する突条１２の挿入部１２２を挿入して接合できるよう
になっている。A step portion 13 is provided at an appropriate distance from the other end of the other surface of the belt-shaped substrate 11, and the step portion 13 is provided with a concave groove portion 14, which is the other joint portion. The recessed portion 14 is provided with an inserted portion 141 having a deeply extending recessed groove and a flange 142. The insertion portion 122 of the adjacent ridge 12 can be inserted and joined into the insertion target portion 141.

【００４９】帯状基板１１の片面の突条１２と凹溝部１
４との間には断面形状Ｔ形のリブ１５が立設されてい
る。１６は帯状基板１１の片面に設けられた嵌合部の水
密性を保つシール材である。The ridge 12 and the groove 1 on one side of the strip-shaped substrate 11
4, a rib 15 having a T-shaped cross section is provided upright. Reference numeral 16 denotes a seal member provided on one surface of the belt-shaped substrate 11 for maintaining the watertightness of the fitting portion.

【００５０】図２に示すように、この帯状部材１を用い
て、図示しない製管機により螺旋状に巻回しつつ、隣接
する凹溝部１４の被挿入部１４１内に突条１２の挿入部
１２２を挿入するように接合して螺旋管からなるライニ
ング管Ｐを形成する。As shown in FIG. 2, using the strip-shaped member 1, the insertion section 122 of the ridge 12 is inserted into the insertion section 141 of the adjacent concave groove section 14 while being spirally wound by a tube-forming machine (not shown). Are joined so as to be inserted to form a lining tube P composed of a spiral tube.

【００５１】次に、本発明の既設管路のライニング施工
方法の一例を図３及び図４を参照して説明する。Next, an example of the method for lining an existing pipeline according to the present invention will be described with reference to FIGS.

【００５２】図３において、２は既設ヒューム管路（下
水道管路）からなる既設管路であって、例えば、径１５
００ｍｍ×長さ３０ｍの円形ヒューム管２１上に約１５
ｍの土被りが行われている。In FIG. 3, reference numeral 2 denotes an existing pipeline composed of an existing fume pipeline (sewage pipeline).
Approximately 15 on a circular fume tube 21 of 00 mm x 30 m length
m has been covered.

【００５３】この例の既設管路のライニング施工方法で
は、まず、図３（ａ）に示すように、既設管路２内にお
いて、ライニング管Ｐの形成前に、予め既設管路２内面
に、水分は透過させるが裏込め材は通過させない材料か
らなる、例えば、厚み５ｍｍ×幅１００ｍｍ×長さ３０
ｍｍのスポンジシート（透水シート）３をその軸方向に
沿って、１ｍおきに粘着両面テープを介して、並列に４
本貼付する。In the method for lining an existing pipeline in this example, first, as shown in FIG. 3A, before the lining pipe P is formed in the existing pipeline 2, It is made of a material that allows moisture to pass through but does not allow the backfill material to pass through, for example, a thickness of 5 mm, a width of 100 mm, and a length of 30.
mm sponge sheet (water permeable sheet) 3 in parallel with the axial direction through an adhesive double-sided tape every 1 m.
Affix this book.

【００５４】次に、図３（ｂ）に示すように、この既設
管路２内において、その端部に側方に設けられた図示し
ない人孔内に固定された図示しない元押し製管方式の製
管機に図１に示す帯状部材１を供給して、螺旋状に巻回
しつつ、図２を参照して説明したように、隣接する凹溝
部１４の被挿入部１４１内に突条１２の挿入部１２２を
挿入するように接合して螺旋管からなるライニング管Ｐ
を形成する。Next, as shown in FIG. 3 (b), in the existing pipe line 2, a not-shown main push pipe fixing method fixed in a not-shown human hole provided laterally at an end thereof. As shown in FIG. 2, the strip-shaped member 1 shown in FIG. 1 is supplied to the pipe making machine, and the ridge 12 is inserted into the inserted portion 141 of the adjacent groove 14 as described with reference to FIG. Lining pipe P which is formed by joining the insertion portion 122 of
To form

【００５５】更に、図３（ｃ）に示すように、既設管路
２とライニング管Ｐとの間隙に、ポルトランドセメント
と珪砂骨材と水とからなるモルタル（裏込め材）を注入
・硬化させて裏込め材層Ｑを形成し、更生管路を形成す
る。Further, as shown in FIG. 3 (c), a mortar (backfill material) composed of Portland cement, silica sand aggregate and water is injected and hardened into the gap between the existing pipeline 2 and the lining pipe P. To form a backfill material layer Q to form a rehabilitation pipe.

【００５６】この更生管路においては、既設管路２の内
面と裏込め材Ｑとの間に、透水シート３からなる水を通
す道がその軸方向の全長にわたって設けられている。In this rehabilitation pipeline, a path for passing water formed of the water-permeable sheet 3 is provided between the inner surface of the existing pipeline 2 and the backfill material Q over the entire length in the axial direction.

【００５７】これにより、図４に示すように、水圧によ
って既設管路２の亀裂Ｋ等を伝わって浸入してきた水Ｈ
は、透水シート３からなる水を通す道を通過して外部に
排水されるので、ライニング管Ｐや裏込め材層Ｑを破損
することがなくなる。As a result, as shown in FIG. 4, the water H that has penetrated through the cracks K and the like of the existing pipeline 2 due to the water pressure.
Is drained to the outside through a water passage made of the water-permeable sheet 3, so that the lining pipe P and the backfill material layer Q are not damaged.

【００５８】本発明の既設管路のライニング施工方法の
別の例を図５を参照して説明する。図５において、４は
既設馬蹄形渠（隧道）からなる既設管路であって、例え
ば、縦１９００ｍｍ×幅１９００ｍｍ×長さ５０ｍのも
のであって渠４１上に約３０ｍの土被りが行われてい
る。Another example of the method for lining an existing pipeline according to the present invention will be described with reference to FIG. In FIG. 5, reference numeral 4 denotes an existing pipeline composed of an existing horseshoe-shaped culvert (tunnel), for example, having a length of 1900 mm × a width of 1900 mm × a length of 50 m. I have.

【００５９】この例の既設管路のライニング施工方法で
は、まず、図５（ａ）に示すように、既設管路４内にお
いて、ライニング管Ｐの形成前に、予め既設管路４内面
に、水分は透過させるが裏込め材は通過させない材料か
らなり、例えば、厚み８ｍｍ×幅１２０ｍｍ×長さ５０
ｍｍのスポンジシート（透水シート）５をその上部の軸
方向に沿って全長にわたって１ｍおきに粘着両面テープ
を介して、並列に３本貼付する。In the method of lining an existing pipeline in this example, first, as shown in FIG. 5A, before the lining pipe P is formed in the existing pipeline 4, It is made of a material that allows moisture to pass through but does not allow the backfill material to pass through, for example, a thickness of 8 mm, a width of 120 mm, and a length of 50 mm.
Three sponge sheets (water permeable sheets) 5 mm in length are attached in parallel along the axial direction of the upper part of the sponge sheets 5 every 1 m via an adhesive double-sided tape.

【００６０】次に、図５（ｂ）に示すように、この既設
管路４内において、その端部に側方に設けられた図示し
ない人孔内に固定された図示しない元押し製管方式の製
管機に図１に示す帯状部材１供給して、螺旋状に巻回し
つつ、図２を参照して説明したように、隣接する凹溝部
１４の被挿入部１４１内に突条１２の挿入部１２２を挿
入するように接合してライニング管Ｐを形成する。Next, as shown in FIG. 5 (b), in the existing pipe line 4, a not-shown main-push pipe system fixed in a not-shown human hole provided at the end of the existing pipe line 4. The strip-shaped member 1 shown in FIG. 1 is supplied to the pipe-making machine of FIG. 1, and the ridge 12 is inserted into the inserted portion 141 of the adjacent groove 14 as described with reference to FIG. The lining tube P is formed by joining the insertion portion 122 so as to be inserted.

【００６１】更に、図５（ｃ）に示すように、既設管路
４とライニング管Ｐとの間隙に、ポルトランドセメント
と珪砂骨材と水とからなるモルタル（裏込め材）を注入
・硬化させて裏込め材層Ｑを形成し、更生管路を形成す
る。Further, as shown in FIG. 5 (c), a mortar (backfill material) composed of Portland cement, silica sand aggregate and water is injected and hardened into the gap between the existing pipeline 4 and the lining pipe P. To form a backfill material layer Q to form a rehabilitation pipe.

【００６２】この更生管路においては、既設管路４の内
面と裏込め材Ｑとの間に、透水シート５からなる水を通
す道がその全長にわたって設けられている。In the rehabilitating pipeline, a passage made of a water-permeable sheet 5 is provided along the entire length between the inner surface of the existing pipeline 4 and the backfill material Q.

【００６３】本発明の既設管路のライニング施工方法の
更に別の例を図６及び図７を参照して説明する。Still another example of the method for lining an existing pipeline according to the present invention will be described with reference to FIGS.

【００６４】この既設管路のライニング施工方法では、
図３を参照して説明したのと同様の既設ヒューム管路
（下水道管路）からなる既設管路２において、まず、図
６（ａ）に示すように、ライニング管Ｐの形成前に、予
め既設管路２内面に、裏込め材が化学的・物理的に付着
しない材料からなる、例えば、厚み０．３ｍｍ×幅１０
０ｍｍ×長さ３０ｍｍのポリエチレンシート（細長いシ
ート）６をその軸方向に沿って全長にわたって、１ｍお
きに粘着両面テープを介して、並列に４本貼付する。In the lining construction method of the existing pipeline,
In the existing pipeline 2 composed of the same existing fume pipeline (sewer pipeline) as described with reference to FIG. 3, first, as shown in FIG. The backfill material is made of a material that does not chemically or physically adhere to the inner surface of the existing pipeline 2, for example, a thickness of 0.3 mm and a width of 10 mm.
Four polyethylene sheets (slim and long sheets) 6 having a length of 0 mm and a length of 30 mm are attached in parallel over the entire length along the axial direction at intervals of 1 m via an adhesive double-sided tape.

【００６５】次に、図６（ｂ）示すように、この既設管
路２内において、その端部に側方に設けられた図示しな
い人孔内に固定された図示しない元押し製管方式の製管
機に図１に示す帯状部材１を供給して、螺旋状に巻回し
つつ、図２を参照して説明したように、隣接する凹溝部
１４の被挿入部１４１内に突条１２の挿入部１２２を挿
入するように接合して螺旋管からなるライニング管Ｐを
形成する。Next, as shown in FIG. 6 (b), in the existing pipe line 2, an unillustrated main-pipe system fixed to a not-shown human hole provided at an end portion thereof at the side thereof. The strip-shaped member 1 shown in FIG. 1 is supplied to the pipe making machine, and while being spirally wound, the ridge 12 is inserted into the inserted portion 141 of the adjacent groove 14 as described with reference to FIG. The insertion portion 122 is joined so as to be inserted to form a lining tube P composed of a spiral tube.

【００６６】更に、図６（ｃ）に示すように、既設管路
２とライニング管Ｐとの間隙に、ポルトランドセメント
と珪砂骨材と水とからなるモルタル（裏込め材）を注入
・硬化させて裏込め材層Ｑを形成し、更生管路を形成す
る。Further, as shown in FIG. 6 (c), a mortar (backfill material) composed of Portland cement, silica sand aggregate and water is injected and hardened into the gap between the existing pipeline 2 and the lining pipe P. To form a backfill material layer Q to form a rehabilitation pipe.

【００６７】この更生管路においては、既設管路２の内
面と裏込め材Ｑとの間に、細長いシート６からなる層が
その全長にわたって設けられており、その部分では、既
設管路２の内面に裏込め材Ｑが完全に付着しない。In this rehabilitating pipeline, a layer made of an elongated sheet 6 is provided over the entire length between the inner surface of the existing pipeline 2 and the backing material Q. The backfill material Q does not completely adhere to the inner surface.

【００６８】この完全に付着しない部分は、水圧がかか
ればすぐに剥離し、その間隙に水の通り道ができること
となる。The portion that does not completely adhere is immediately peeled off when water pressure is applied, and a water passage is formed in the gap.

【００６９】これにより、図７に示すように、水圧によ
って既設管路２の亀裂Ｋ等を伝わって浸入してきた水Ｈ
は、水を通す道を通過して外部に排水されるので、ライ
ニング管Ｐや裏込め材層Ｑを破損することがなくなる。As a result, as shown in FIG. 7, the water H that has penetrated through the cracks K and the like in the existing pipeline 2 due to the water pressure.
Is drained to the outside through a water passage, so that the lining pipe P and the backing material layer Q are not damaged.

【００７０】本発明の既設管路のライニング施工方法の
更に別の例を図８を参照して説明する。Another example of the method for lining an existing pipeline according to the present invention will be described with reference to FIG.

【００７１】図８においては、４は既設馬蹄形渠（隧
道）からなる既設管路であって、例えぱ、縦１９００ｍ
ｍ×幅１９００ｍｍ×長さ５０ｍの渠４１上に約３０ｍ
の土被りが行われている。In FIG. 8, reference numeral 4 denotes an existing pipeline composed of an existing horseshoe-shaped culvert (tunnel), for example, 1900 m long.
mx 1900mm x 50m length 30m on a culvert 41
Has been covered.

【００７２】この例の既設管路のライニング施工方法で
は、既設馬蹄形渠（隧道）からなる既設管路４内におい
て、まず、図８（ａ）に示すように、ライニング管Ｐの
形成前に、例えば、厚み０．３ｍｍ×幅１００ｍｍ×長
さ３０ｍｍのポリエチレンシート（細長いシート）６を
その軸方向に沿って全長にわたって、１ｍおきに粘着両
面テープを介して、並列に３本貼付する。In the lining construction method of the existing pipeline of this example, first, as shown in FIG. 8A, before the lining pipe P is formed in the existing pipeline 4 composed of an existing horseshoe culvert (tunnel). For example, three polyethylene sheets (elongated sheets) 6 each having a thickness of 0.3 mm, a width of 100 mm and a length of 30 mm are stuck in parallel over the entire length along the axial direction at intervals of 1 m via an adhesive double-sided tape.

【００７３】次に、図８（ｂ）に示すように、この既設
管路４内において、その端部に側方に設けられた図示し
ない人孔内に固定された図示しない元押し製管方式の製
管機に図１に示す帯状部材１供給して、螺旋状に巻回し
つつ、図２を参照して説明したように、隣接する凹溝部
１４の被挿入部１４１内に突条１２の挿入部１２２を挿
入するように接合して螺旋管からなるライニング管Ｐを
形成する。Next, as shown in FIG. 8 (b), in the existing pipeline 4, an unillustrated main-pipe system fixed to an unillustrated human hole provided at the end of the existing pipeline 4 is provided. The strip-shaped member 1 shown in FIG. 1 is supplied to the pipe-making machine of FIG. 1, and the ridge 12 is inserted into the inserted portion 141 of the adjacent groove 14 as described with reference to FIG. The insertion portion 122 is joined so as to be inserted to form a lining tube P composed of a spiral tube.

【００７４】更に、図８（ｃ）に示すように、既設管路
４とライニング管Ｐとの間隙に、ポルトランドセメント
と珪砂骨材と水とからなるモルタル（裏込め材）を注入
・硬化させて裏込め材層Ｑを形成し、更生管路を形成す
る。Further, as shown in FIG. 8 (c), a mortar (backfill material) made of Portland cement, silica sand aggregate and water is injected and hardened into the gap between the existing pipeline 4 and the lining pipe P. To form a backfill material layer Q to form a rehabilitation pipe.

【００７５】この更生管路においては、既設管路４の内
面に細長いシート６に基づく裏込め材Ｑが完全に付着し
ない部分が設けられており、その部分は、水圧がかかれ
ばすぐに剥離し、その間隙に水の通り道ができることと
なる。In this rehabilitation pipeline, a portion where the backfill material Q based on the elongated sheet 6 does not completely adhere is provided on the inner surface of the existing pipeline 4, and the portion is immediately peeled off when water pressure is applied. A water path will be created in the gap.

【００７６】これにより、水圧によって既設管路２の亀
裂等を伝わって浸入してきた水は、水を通す道を通過し
て外部に排水されるので、ライニング管Ｐや裏込め材層
Ｑを破損することがなくなる。As a result, the water that has penetrated through the cracks and the like in the existing pipeline 2 due to the water pressure is discharged to the outside through the water passage, so that the lining pipe P and the backing material layer Q are damaged. Will not be done.

【００７７】本発明の既設管路のライニング施工方法の
更に別の例を図９を参照して説明する。Still another example of the method for lining an existing pipeline according to the present invention will be described with reference to FIG.

【００７８】この例の既設管路のライニング施工方法で
は、図９に示すように、図１に示す帯状部材１を用い
て、図５に参照して説明したのと同様の既設管路４内に
おいて、その端部に側方に設けられた図示しない人孔内
に固定された図示しない元押し製管方式の製管機に供給
して、螺旋状に巻回しつつ、図２を参照して説明したよ
うに、隣接する凹溝部１４の被挿入部１４１内に突条１
２の挿入部１２２を挿入するように接合して螺旋管から
なるライニング管Ｐ′を形成する。この際、製管機の直
前にて、予め螺旋管を形成の外面部分に、地上のタンク
よりポンプにより供給される離型剤をノズルより塗布厚
が一定となるように噴射して、帯状部材１の長手方向に
沿う全長にわたって離型剤層７を設ける。In the lining construction method of the existing pipeline of this example, as shown in FIG. 9, the existing pipeline 4 similar to that described with reference to FIG. In FIG. 2, while being supplied to a not-shown main-pipe type pipe making machine fixed in a not-shown human hole provided laterally at an end portion thereof and being spirally wound, with reference to FIG. As described above, the ridge 1 is inserted into the inserted portion 141 of the adjacent groove 14.
The two insertion portions 122 are joined so as to be inserted to form a lining tube P ′ made of a spiral tube. At this time, immediately before the pipe making machine, the mold release agent supplied by the pump from the tank on the ground is sprayed onto the outer surface portion of the spiral tube in advance so that the coating thickness is constant from the nozzle, and the belt-shaped member is formed. The release agent layer 7 is provided over the entire length along the longitudinal direction of the first release agent.

【００７９】尚、離型剤の塗布は、ノズルを用いること
なく、作業員が刷毛にて連続的にやや厚めに塗布すると
ともに，塗布厚が一定となるようにスクレーバーにより
そぎ落とすようにしてもよい。It is to be noted that the release agent may be applied by using a brush, without using a nozzle, continuously and slightly thicker by a brush, and by scraping off with a scraper so that the applied thickness is constant. Good.

【００８０】更に、既設管路４とライニング管Ｐ′との
間隙に、ポルトランドセメントと珪砂骨材と水とからな
るモルタル（裏込め材）を注入・硬化させて裏込め材層
Ｑを形成し、更生管路を形成する。Further, a mortar (backfill material) comprising Portland cement, silica sand aggregate and water is injected and hardened into the gap between the existing pipeline 4 and the lining pipe P 'to form a backfill material layer Q. , Forming a rehabilitation pipeline.

【００８１】この更生管路においては、ライニング管
Ｐ′の外面に離型剤層７に基づく裏込め材Ｑが完全に付
着しない部分が螺旋状にその全長にわたって設けられて
いる。その部分は水圧がかかればすぐに剥離し、その間
隙に水の通り道ができることとなる。In this rehabilitating pipeline, a portion where the backfill material Q based on the release agent layer 7 is not completely attached to the outer surface of the lining tube P 'is provided spirally over the entire length. The part immediately separates when the water pressure is applied, and a water passage is formed in the gap.

【００８２】本発明の既設管路のライニング施工方法の
更に別の例を図１０〜図１２を参照して説明する。Still another example of the method for lining an existing pipeline according to the present invention will be described with reference to FIGS.

【００８３】この例の既設管路のライニング施工方法で
は、図１０（ａ）及び図１１に示すように、高さ２ｍ×
幅２ｍ×長さ１００ｍであること以外は図５を参照して
説明したのと同様の既設馬蹄形渠（隧道）からなる既設
管路４′内において、ライニング管Ｐの形成前に、予め
その内面に、幅１０ｃｍ×高さ１０ｃｍの溝部材８をＵ
型アンカーＡにて固定するとともに、溝部材８の下端部
を軸方向に沿って連結する集水部材９をＵ型アンカーＡ
にてゴムパッキングＧを介在するようにして固定する。According to the lining construction method of the existing pipeline in this example, as shown in FIGS.
Before the lining pipe P is formed in the existing pipeline 4 'consisting of the existing horseshoe culvert (tunnel) similar to that described with reference to Fig. 5 except that the width is 2m x the length of 100m, Then, a groove member 8 having a width of 10 cm and a height of 10 cm is inserted into the U
The water collecting member 9 which is fixed by the mold anchor A and connects the lower end of the groove member 8 along the axial direction is a U-shaped anchor A
And fix it with the rubber packing G interposed.

【００８４】その後、図１０（ｂ）に示すように、その
端部に側方に設けられた図示しない人孔内に固定された
図示しない元押し製管方式の製管機に図１に示す帯状部
材１供給して、螺旋状に巻回しつつ、図２を参照して説
明したように、隣接する凹溝部１４の被挿入部１４１内
に突条１２の挿入部１２２を挿入するように接合して螺
旋管からなるライニング管Ｐを形成する。Then, as shown in FIG. 10 (b), a not-shown main-pipe type pipe-making machine fixed in a not-shown human hole provided at the end portion is shown in FIG. As described with reference to FIG. 2, the band-shaped member 1 is supplied and joined so that the insertion portion 122 of the ridge 12 is inserted into the insertion portion 141 of the adjacent concave groove portion 14 while being spirally wound. As a result, a lining tube P made of a spiral tube is formed.

【００８５】更に、図１０（ｃ）に示すように、既設管
路４とライニング管Ｐとの間隙に、ポルトランドセメン
トと珪砂骨材と水とからなるモルタル（裏込め材）を注
入・硬化させて裏込め材層Ｑを形成し、更生管路を形成
する。Further, as shown in FIG. 10 (c), a mortar (backfill material) composed of Portland cement, silica sand aggregate and water is injected into the gap between the existing pipeline 4 and the lining pipe P and hardened. To form a backfill material layer Q to form a rehabilitation pipe.

【００８６】この更生管路においては、既設管路４′の
内面と裏込め材層Ｑとの間に、溝部材８と集水部材９と
からなる水を通す道が形成されることとなる。In this rehabilitation pipeline, a path for passing water formed by the groove member 8 and the water collecting member 9 is formed between the inner surface of the existing pipeline 4 'and the backfill material layer Q. .

【００８７】これにより、図１２に示すように、水圧に
よって既設管路４′の亀裂Ｋ等を伝わって浸入してきた
水Ｈは、水を通す道を通過して外部に排出されるので、
ライニング管Ｐや裏込め材層Ｑを破損することがなくな
る。As a result, as shown in FIG. 12, the water H that has entered through the cracks K and the like of the existing pipeline 4 'due to the water pressure is discharged to the outside through the water passage.
The lining tube P and the backfill material layer Q are not damaged.

【００８８】本発明の既設管路のライニング施工方法の
更に別の例を図１３を参照して説明する。Another example of the method for lining an existing pipeline according to the present invention will be described with reference to FIG.

【００８９】この例の既設管路のライニング施工方法に
おいては、溝部材８及び集水部材９の代わりに、有孔管
１０を用いる。有孔管１０は、図１４に示すように、そ
の有孔管１０内に、円筒管Ｂが挿入されて孔部分が塞が
れた二重管構造の状態にて、既設管路４′内に設置され
る。そして、既設管路４′とライニング管Ｐとの間に裏
込め材を注入・硬化させた後、有孔管１０内からは、円
筒管Ｂが引き抜かれる。上記したこと以外は、図１０〜
図１２を参照して説明した場合と同様である。この更生
管路においては、既設管路４′の内面と裏込め材層Ｑと
の間に、有孔管１０からなる水を通す道が形成されるこ
ととなる。In the lining method of the existing pipeline in this example, a perforated pipe 10 is used instead of the groove member 8 and the water collecting member 9. As shown in FIG. 14, the perforated pipe 10 is inserted into the existing pipe 4 'in a state of a double pipe structure in which the cylindrical pipe B is inserted and the hole is closed. Installed in Then, after injecting and hardening the backfill material between the existing pipe line 4 ′ and the lining pipe P, the cylindrical pipe B is pulled out of the perforated pipe 10. Except as described above, FIG.
This is the same as the case described with reference to FIG. In this rehabilitation pipeline, a path for passing water formed by the perforated pipe 10 is formed between the inner surface of the existing pipeline 4 'and the backfill material layer Q.

【００９０】これにより、水圧によって既設管路４′の
亀裂等を伝わって浸入してきた水は水を通す道を通過し
て外部に排水されるので、ライニング管Ｐや裏込め材層
Ｑを破損することがなくなる。As a result, the water that has penetrated through the cracks and the like in the existing pipeline 4 ′ due to the water pressure is discharged to the outside through the water passage, and the lining pipe P and the backing material layer Q are damaged. Will not be done.

【００９１】なお、上記実施の形態では、有孔管１０内
に円筒管Ｂを挿入し、裏込め材の注入・硬化後に引き抜
くようにしているが、この円筒管Ｂの代わりに、ゴム材
料や樹脂材料によって形成され、空気圧などによって有
孔管１０内で膨らますことができるようになされた膨縮
体（図示省略）を用いてもよい。この場合、膨縮体（図
示省略）は、有孔管１０内で膨らませておくことで、有
孔管１０の孔部分を塞いだ状態にしておくことができ、
裏込め材を注入・硬化させた後には、この有孔管１０内
で収縮させて容易に引き抜くことができる。In the above-described embodiment, the cylindrical tube B is inserted into the perforated tube 10 and pulled out after the backfill material is injected and cured, but instead of the cylindrical tube B, a rubber material or the like is used. An expansion / contraction body (not shown) formed of a resin material and configured to be able to expand in the perforated tube 10 by air pressure or the like may be used. In this case, the expanded and contracted body (not shown) can be kept in a state in which the hole portion of the perforated tube 10 is closed by being inflated in the perforated tube 10.
After injecting and curing the backfill material, the backfill material can be contracted in the perforated tube 10 and easily pulled out.

【００９２】また、有孔管１０は、図１０に示す溝部材
８および集水部材９の代わりに用いられているが、溝部
材８はそのままで、集水部材９だけをこの有孔管１０に
置き換えて使用したものであってもよいし、集水部材９
はそのままで、溝部材８だけをこの有孔管１０に置き換
えて使用したものであってもよい。Although the perforated pipe 10 is used in place of the groove member 8 and the water collecting member 9 shown in FIG. 10, the groove member 8 is kept as it is, and only the water collecting member 9 is used. The water collecting member 9 may be used instead of
May be used by replacing the groove member 8 with the perforated tube 10 as it is.

【００９３】[0093]

【発明の効果】本発明の既設管路のライニング施工方法
は、上記のとおりとされているので、既設管路の亀裂等
を伝わって浸入してくる水を外部に排水できるようにし
た更生管路を容易に形成することができる。As described above, the method for lining an existing pipeline according to the present invention is as described above. Therefore, a rehabilitating pipe capable of draining water entering through a crack or the like of an existing pipeline to the outside. The road can be easily formed.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の既設管路のライニング施工方法に用い
られる帯状部材の一例を示す説明図である。FIG. 1 is an explanatory view showing an example of a band-shaped member used in a method for lining an existing pipeline according to the present invention.

【図２】図１に示す帯状部材を用いた螺旋管の形成状態
を示す説明図である。FIG. 2 is an explanatory view showing a state in which a spiral tube is formed using the belt-shaped member shown in FIG.

【図３】本発明の既設管路のライニング施工方法の一例
の説明図であり、（ａ）〜（ｃ）はその工程を順次説明
する断面図である。FIGS. 3A to 3C are explanatory views of an example of a method for lining an existing pipeline according to the present invention, and FIGS.

【図４】図３の方法で得られた更生管路における排水状
態を説明する断面図である。4 is a cross-sectional view illustrating a drainage state in a rehabilitation pipeline obtained by the method of FIG.

【図５】本発明の既設管路のライニング施工方法の別の
例の説明図であり、（ａ）〜（ｃ）はその工程を順次説
明する断面図である。FIGS. 5A to 5C are explanatory views of another example of the method for lining an existing pipeline according to the present invention, and FIGS. 5A to 5C are cross-sectional views sequentially illustrating the steps.

【図６】本発明の既設管路のライニング施工方法の更に
別の例の説明図であり、（ａ）〜（ｃ）はその工程を順
次説明する断面図である。FIGS. 6A to 6C are explanatory views of still another example of the method for lining an existing pipeline according to the present invention, and FIGS. 6A to 6C are cross-sectional views sequentially illustrating the steps.

【図７】図６の方法で得られた更生管路における排水状
態を説明する断面図である。FIG. 7 is a cross-sectional view illustrating a drainage state in a rehabilitation pipe obtained by the method of FIG. 6;

【図８】本発明の既設管路のライニング施工方法の更に
別の例の説明図であり、（ａ）〜（ｃ）はその工程を順
次説明する断面図である。FIGS. 8A to 8C are explanatory views of still another example of the method for lining an existing pipeline according to the present invention, and FIGS. 8A to 8C are cross-sectional views sequentially explaining the steps.

【図９】本発明の既設管路のライニング施工方法の更に
別の例を説明する要部断面図でる。FIG. 9 is a cross-sectional view of a main part illustrating still another example of the method of lining an existing pipeline according to the present invention.

【図１０】本発明の既設管路のライニング施工方法の更
に別の例の説明図であり、（ａ）〜（ｃ）はその工程を
順次説明する断面図である。FIGS. 10A to 10C are explanatory views of still another example of the method of lining an existing pipeline according to the present invention, and FIGS. 10A to 10C are cross-sectional views sequentially explaining the steps.

【図１１】図１０に示す例における溝部材の取付工程を
説明する拡大断面図である。FIG. 11 is an enlarged cross-sectional view illustrating a mounting process of the groove member in the example shown in FIG.

【図１２】図１０に示す例における更生管路を説明する
断面図である。12 is a cross-sectional view illustrating a rehabilitation pipeline in the example shown in FIG.

【図１３】本発明の既設管路のライニング施工方法の更
に別の例の説明図であり、（ａ）〜（ｃ）はその工程を
順次説明する断面図である。FIG. 13 is an explanatory view of still another example of the method for lining an existing pipeline according to the present invention, and (a) to (c) are cross-sectional views for sequentially explaining the steps.

【図１４】本発明の既設管路のライニング施工方法の更
に別の例の説明図であり、（ａ）〜（ｂ）はその工程を
順次説明する断面図である。FIGS. 14A and 14B are explanatory views of still another example of the method for lining an existing pipeline according to the present invention, and FIGS.

【符号の説明】[Explanation of symbols]

１ 帯状部材 ２，４，４′ 既設管路 ３，５ 集水テープ ６ 細長いテープ ７ 離型剤層 ８ 溝部材 ９ 集水部材 １０ 有孔管 １２，１４ 接合部 Ｂ 円筒管（挿入体） Ｐ，Ｐ′ ライニング管 Ｑ 裏込め材層 DESCRIPTION OF SYMBOLS 1 Band-shaped member 2,4,4 'Existing pipeline 3,5 Water collecting tape 6 Slender tape 7 Release agent layer 8 Groove member 9 Water collecting member 10 Perforated tube 12,14 Joint B Cylindrical tube (insert) P , P 'lining tube Q Backfill material layer

───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3H111 AA01 BA37 CA03 CB04 CB13 DA26 DB03 DB05 EA01 4D075 AG08 DA14 4F211 AD05 AD09 AD21 AD24 AG03 AG08 AH43 SA05 SC03 SD01 SD16 SD19 SD21 SH30  ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3H111 AA01 BA37 CA03 CB04 CB13 DA26 DB03 DB05 EA01 4D075 AG08 DA14 4F211 AD05 AD09 AD21 AD24 AG03 AG08 AH43 SA05 SC03 SD01 SD16 SD19 SD21 SH30

Claims (7)

【特許請求の範囲】[Claims] 【請求項１】 既設管路内において、両側縁部に接合部
が形成された長尺の帯状部材を連続的に供給するととも
に螺旋状に巻回し、相接する接合部同士を接合させるこ
とにより螺旋管からなるライニング管を形成した後、既
設管路とライニング管との間隙に裏込め材を注入・硬化
させる既設管路のライニング施工方法であって、前記ラ
イニング管の形成前に、予め前記既設管路内面に水分は
透過させるが裏込め材は通過させない材料からなる透水
シートをその軸方向に沿って全長にわたって貼付してお
くことを特徴とする既設管路のライニング施工方法。In the existing pipeline, a long strip-shaped member having joints formed on both side edges is continuously supplied and spirally wound to join mutually joined joints. After forming a lining pipe made of a spiral pipe, a lining construction method of an existing pipe line in which a backfill material is injected and hardened into a gap between the existing pipe line and the lining pipe, wherein the lining pipe is formed before the lining pipe is formed. A lining construction method for an existing pipeline, characterized in that a water-permeable sheet made of a material that allows moisture to permeate but does not allow a backfill material to pass through the inside of the existing pipeline is attached along the entire length of the existing pipeline. 【請求項２】 既設管路内において、両側縁部に接合部
が形成された長尺の帯状部材を連続的に供給するととも
に螺旋状に巻回し、相接する接合部同士を接合させるこ
とにより螺旋管からなるライニング管を形成した後、既
設管路とライニング管との間隙に裏込め材を注入・硬化
させる既設管路のライニング施工方法であって、前記ラ
イニング管の形成前に、予め前記既設管路内面に裏込め
材が化学的・物理的に付着しない材料からなる細長いシ
ートをその軸方向に沿って全長にわたって貼付しておく
ことを特徴とする既設管路のライニング施工方法。2. In an existing pipeline, a long strip-shaped member having joints formed on both side edges is continuously supplied and spirally wound to join the joined joints to each other. After forming a lining pipe made of a spiral pipe, a lining construction method of an existing pipe line in which a backfill material is injected and hardened into a gap between the existing pipe line and the lining pipe, wherein the lining pipe is formed before the lining pipe is formed. A method of lining an existing pipeline, comprising attaching an elongated sheet made of a material to which a backfill material does not chemically or physically adhere to the inner surface of the existing pipeline along the entire length thereof. 【請求項３】 既設管路内において、両側縁部に接合部
が形成された長尺の帯状部材を連続的に供給するととも
に螺旋状に巻回し、相接する接合部同士を接合させるこ
とにより螺旋管からなるライニング管を形成した後、既
設管路とライニング管との間隙に裏込め材を注入・硬化
させる既設管路のライニング施工方法であって、予め巻
回前の前記帯状部材の螺旋管を形成したときに外面とな
る部分に、該帯状部材の長手方向に沿う全長にわたって
離型剤層を設けておくことを特徴とする既設管路のライ
ニング施工方法。3. A long strip-shaped member having joints formed on both side edges is continuously supplied and spirally wound in the existing pipeline to join the joined joints to each other. A method for lining an existing pipeline in which a backing material is injected and hardened into a gap between the existing pipeline and the lining pipe after forming a lining pipe made of a spiral pipe, wherein the spiral of the band-shaped member before winding is previously wound. A method for lining an existing pipeline, wherein a release agent layer is provided on a portion which becomes an outer surface when a pipe is formed, along the entire length of the strip-shaped member along the longitudinal direction. 【請求項４】 前記離型剤を、前記帯状部材を螺旋状に
巻回して螺旋管を形成する製管機の近傍にて、前記帯状
部材の螺旋管を形成したときに外面となる部分に、該帯
状部材の長手方向に沿う全長にわたって離型剤層を設け
ることを特徴とする請求項３に記載の既設管路のライニ
ング施工方法。4. A portion of the stripping agent, which is to be an outer surface when a spiral tube of the band-shaped member is formed, in the vicinity of a tube-forming machine which spirally winds the band-shaped member to form a spiral tube. 4. The method for lining an existing pipeline according to claim 3, wherein a release agent layer is provided over the entire length of the strip-shaped member along the longitudinal direction. 【請求項５】 既設管路内において、両側縁部に接合部
が形成された長尺の帯状部材を連続的に供給するととも
に螺旋状に巻回し、相接する接合部同士を接合させるこ
とにより螺旋管からなるライニング管を形成した後、既
設管路とライニング管との間隙に裏込め材を注入・硬化
させる既設管路のライニング施工方法であって、前記ラ
イニング管の形成前に、予め前記既設管路内面に、所定
間隔毎に周方向に沿う溝部材と、該溝部材の下端部を軸
方向に沿って全長にわたって連結する集水部材を設けて
おくことを特徴とする既設管路のライニング施工方法。5. In an existing pipeline, a long strip-shaped member having joints formed on both side edges is continuously supplied, spirally wound, and jointed joints are joined to each other. After forming a lining pipe made of a spiral pipe, a lining construction method of an existing pipe line in which a backfill material is injected and hardened into a gap between the existing pipe line and the lining pipe, wherein the lining pipe is formed before the lining pipe is formed. On the inner surface of the existing pipeline, a groove member along the circumferential direction at predetermined intervals, and a water collecting member for connecting the lower end portion of the groove member along the entire length along the axial direction are provided. Lining construction method. 【請求項６】 溝部材および集水部材の少なくとも何れ
か一方を、有孔管とする請求項５記載の既設管路のライ
ニング施工方法。6. The method for lining an existing pipeline according to claim 5, wherein at least one of the groove member and the water collecting member is a perforated pipe. 【請求項７】 有孔管内を閉塞可能で、かつ、この有孔
管内から引き抜き可能となされた挿入体を、有孔管内に
挿入しておき、裏込め材の注入・硬化後、この挿入体を
有孔管内から引き抜く請求項６記載の既設管路のライニ
ング施工方法。7. An insert which can be closed in the perforated pipe and which can be pulled out from the perforated pipe is inserted into the perforated pipe, and after the backfill material is injected and cured, the insert is inserted. 7. The method for lining an existing pipeline according to claim 6, wherein the pipe is pulled out of the perforated pipe.