JP2009002391A - Existing pipe repair method - Google Patents

Existing pipe repair method Download PDF

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JP2009002391A
JP2009002391A JP2007161785A JP2007161785A JP2009002391A JP 2009002391 A JP2009002391 A JP 2009002391A JP 2007161785 A JP2007161785 A JP 2007161785A JP 2007161785 A JP2007161785 A JP 2007161785A JP 2009002391 A JP2009002391 A JP 2009002391A
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pipe
new
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existing
existing pipe
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JP5025346B2 (en
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Shinkichi Ooka
伸吉 大岡
Mitsuyoshi Cho
満良 張
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Yoshika Kk
吉佳株式会社
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<P>PROBLEM TO BE SOLVED: To provide an existing pipe repair method which can efficiently introduce a cylindrical film into an existing pipe simultaneously when filling a filler. <P>SOLUTION: In this method for repairing the existing pipe, a regeneration pipe is formed in the existing pipe by sequentially extending and inserting ready-made new pipe pieces 40-1 to 40-n into the existing pipe 100 to be repaired, and the secular hardening filler is filled between the regeneration pipe and the existing pipe. The whole circumference of one end of the cylindrical film 20 is tightly stuck and fixed to the whole circumference of the edge of one end opening of the existing pipe. The new pipe pieces are inserted with the other end of the cylindrical film inserted into the new pipe pieces. The first new pipe piece 40-1 is inserted in a manner that it is forwardly moved to the other end of the existing pipe while pushing and inverting the cylindrical film by a front end in the inserting direction of the new pipe piece. The following new pipe pieces are sequentially inserted while pushing and moving the new pipe pieces. The filler is filled into a clearance between the cylindrical film and the new pipe pieces during the insertion and movement of the new pipe pieces. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、下水管や取付け管など既設管内に更生管を形成し、既設管を更生するための既設管補修方法に関する。   The present invention relates to an existing pipe repair method for forming a rehabilitation pipe in an existing pipe such as a sewer pipe or a mounting pipe and rehabilitating the existing pipe.
日本の下水道普及率は平均68%であり、都市部ではほぼ100%に近い普及率である。このような現状において、下水管の新設は一部地方を除いて殆どなくなり、既設の老朽化下水管の維持管理が重要なものとなっている。既設下水管の総延長は約36万kmであり、そのうち耐用年数が50年を越えた下水管は7000km以上となっている。また、今後、年間数千kmずつ増加する見込みである。   The average sewerage penetration rate in Japan is 68%, which is close to 100% in urban areas. Under such circumstances, new sewage pipes are almost eliminated except in some areas, and the maintenance of existing sewage pipes is important. The total length of existing sewage pipes is about 360,000 km, of which sewage pipes with a useful life of more than 50 years are over 7000 km. In the future, it is expected to increase by several thousand km per year.
一般に、下水管など地中に埋設されている既設管は、設置からの年数の経過による様々な変形、例えば、ズレによる段差の発生や、径の変化などが生じることは不可避である。また、変形が生じなくても老朽化に伴って交換が必要になる。このような様々な事情から、老朽化既設管は、埋設から数十年後には新管と交換するか或いは何等かの補修が必要になる。   In general, existing pipes buried in the ground such as sewer pipes are inevitably subject to various deformations due to the lapse of years since installation, for example, generation of steps due to displacement or change in diameter. In addition, even if no deformation occurs, replacement is necessary with aging. Under such various circumstances, the aging existing pipe needs to be replaced with a new pipe or to be repaired in some decades after being buried.
既設管の補修方法として、例えば特開平7−91567号公報(特許文献1)及び特開2003−301690号公報(特許文献2)に開示されているように、予め製造された新管ピースを既設管内に順次継ぎ足しながら挿入して既設管内に更生管を設け、更に、既設管と更生管との間の間隙に経時硬化性充填材を注入し硬化させて既設管と更生管とを一体化し、低下した既設管の機能を回復させる方法が提案されている。   As a method for repairing an existing pipe, for example, as disclosed in Japanese Patent Laid-Open No. 7-91567 (Patent Document 1) and Japanese Patent Application Laid-Open No. 2003-301690 (Patent Document 2), a new pipe piece manufactured in advance is installed. Inserted into the pipe while sequentially adding and providing a rehabilitation pipe in the existing pipe, and further injecting and hardening a time-curable filler into the gap between the existing pipe and the rehabilitation pipe, A method for recovering the function of a deteriorated existing pipe has been proposed.
特開平7−91567号公報JP-A-7-91567 特開2003−301690号公報JP 2003-301690 A
上記従来の既設管補修方法によれば、上記のように既設管と更生管との間の間隙に経時硬化性充填材を注入し硬化させて既設管と更生管とを一体化し、低下した既設管の機能を回復させることができる。しかしながら、既設管にはひび割れや、継ぎ目部の隙間が生じている場合が多く、充填材注入時に充填材がこれらひび割れや隙間から漏れ出し、充填材が上記間隙内に満遍なく行き渡らなかったり、注入のための施工時間が長くなったり、流出した充填材が地盤を汚染したりする問題がある。また、充填材硬化後に、地震などの地変などにより、更生された既設管に変形や亀裂や段差や隙間が生じた場合、これら亀裂や段差や隙間から下水が流出したり、或いは地下水が既設管内へ流入してしまったりする事態が発生してしまう。   According to the conventional existing pipe repair method, the existing pipe and the rehabilitated pipe are integrated by injecting and curing the time-curable filler into the gap between the existing pipe and the rehabilitated pipe, as described above, The function of the tube can be restored. However, there are many cases where existing pipes have cracks or gaps in the seam, and when the filler is injected, the filler leaks from these cracks and gaps, and the filler does not spread evenly into the gaps. For this reason, there is a problem that the construction time is long and the outflowing filler material contaminates the ground. In addition, if the existing pipes that have been renovated are deformed, cracked, stepped, or gap due to an earthquake, etc. after hardening of the filler, sewage will flow out of these cracks, steps, or gaps, or groundwater will flow into the existing pipes. The situation that it flows into will occur.
そこで、本願の出願人等は、上記更生管の形成に先立って既設管内に伸縮性、柔軟性、不透水性を有する円筒状膜を導入し、この円筒状膜の内側に上記更生管を形成し、この更生管と円筒状膜との間に上記充填材を注入することを提案している(例えば、特願2006−243073、特願2006−275185、特願2006−354212)。   Therefore, prior to the formation of the rehabilitation pipe, the applicant of the present application introduces a cylindrical film having stretchability, flexibility and water impermeability into the existing pipe, and forms the rehabilitation pipe inside the cylindrical film. In addition, it has been proposed to inject the filler between the rehabilitation pipe and the cylindrical membrane (for example, Japanese Patent Application Nos. 2006-243073, 2006-275185, and 2006-354212).
上記円筒状膜は、上記経時硬化性充填材を円筒状膜と更生管との間の間隙に注入する際、充填材が既設管のひび割れ部や継ぎ目部から漏出しないように作用する。また、地震などの地変により、既設管や更生管に変形や亀裂や段差や隙間が生じた場合でも、上記円筒状膜はこれに追随して伸張あるいは変形し、それら隙間等を被覆乃至カバーすることができ、修理が行われるまでの応急的な密閉性を確保することができる。   The cylindrical film acts so that the filler does not leak from the cracked part or the joint part of the existing pipe when the time-curable filler is injected into the gap between the cylindrical film and the rehabilitated pipe. Also, even when an existing pipe or rehabilitation pipe is deformed, cracked, stepped, or gaps due to a ground deformation such as an earthquake, the cylindrical film stretches or deforms following this to cover or cover these gaps. It is possible to secure an emergency seal until repair is performed.
既設管内への円筒状膜の導入は、例えば2つのマンホール間の既設管内へ導入する場合、一方の発進側マンホールから反転させつつ他方の到達側マンホールへ向けて押込んでいく方法、あるいは到達側マンホールから又はその逆に発進側マンホールから円筒状膜の先端部を牽引して引き込んでいく方法が上記先願で提案されている。   For example, when the cylindrical film is introduced into the existing pipe, for example, when it is introduced into the existing pipe between two manholes, it is reversed from one starting side manhole and pushed toward the other reaching side manhole, or the reaching side manhole. From the above, or vice versa, the above-mentioned prior application proposes a method of pulling and pulling the tip of the cylindrical membrane from the starting manhole.
本発明の目的は、既設管内への円筒状膜の導入を、充填材の注入と共に効率良く行える既設管補修方法を提供することにある。   The objective of this invention is providing the existing pipe repair method which can introduce | transduce the cylindrical film | membrane into an existing pipe | tube efficiently with injection | pouring of a filler.
上記目的を達成する達成するため、請求項1に係る既設管補修方法は、補修対象の既設管内へ既製の新管ピースを順次継ぎ足しながら挿入することにより該既設管内に更生管を形成し、該更生管と上記既設管との間に経時硬化性の充填材を充填して上記既設管を補修する既設管補修方法において、
可撓性及び不透水性を有する円筒状膜の一端部の全周を上記既設管の一端側開口部の縁部全周に密着固定し、
上記新管ピースの挿入は、
上記円筒状膜の他端部を上記新管ピース内に挿通させた状態として行われ、
先頭の新管ピースの挿入は、その挿入方向前端部で上記円筒状膜を押して反転させつつ上記既設管の他端側まで前進移動させることで行われ、
後続の新管ピースの挿入は、前記新管ピースを押し移動させながら順次行われ、
上記充填材の充填は、
上記新管ピースの挿入動作中に、上記円筒状膜と新管ピースとの間の間隙に対して行われることを特徴とする。
In order to achieve the above object, the existing pipe repairing method according to claim 1 is a method of forming a renovated pipe in the existing pipe by sequentially inserting and inserting a new pipe piece into the existing pipe to be repaired, In the existing pipe repair method of repairing the existing pipe by filling a curable filler between the rehabilitation pipe and the existing pipe,
The entire circumference of one end of the cylindrical membrane having flexibility and water impermeability is closely fixed to the entire circumference of the edge of the opening on the one end side of the existing pipe,
Insert the new pipe piece
It is performed as a state where the other end of the cylindrical membrane is inserted into the new tube piece,
The insertion of the leading new tube piece is performed by moving forward to the other end side of the existing tube while pushing and inverting the cylindrical membrane at the front end portion in the insertion direction,
Subsequent insertion of the new tube piece is performed sequentially while pushing and moving the new tube piece,
The filling of the filler is
During the insertion operation of the new tube piece, it is performed on the gap between the cylindrical membrane and the new tube piece.
この構成によれば、一端部の全周が既設管の一端側開口部の縁部全周に密着固定された状態の円筒状膜が、先頭の新管ピースの挿入方向前端部から、この先頭の新管ピース内を通り、既設管外部に配置した円筒状膜供給部へ延びているので、先頭の新管ピースを既設管内へ挿入する際、その挿入動作よって円筒状膜が先頭の新管ピースの内周側から外周側へ新管ピースの挿入方向前端部で反転して移行し、次いで後続の二番目以降の新管ピースを挿入する際も、その挿入動作によって先頭の新管ピースが前進移動せしめられるので、先頭の新管ピースの外周側への円筒状膜の移行が順次行われ、従って既設管内での更生管の形成と共に、既設管と更生管との間への円筒状膜の導入も同時に行われる。即ち、更生管の形成作業が円筒状膜の導入をも行い、円筒状膜の導入作業を別途行う必要がない。   According to this configuration, the cylindrical membrane in which the entire circumference of the one end is closely fixed to the entire circumference of the edge of the opening on the one end side of the existing pipe is moved from the front end of the leading new tube piece in the insertion direction. The tube is extended to the cylindrical membrane supply section located outside the existing pipe, so that when the leading new tube piece is inserted into the existing pipe, the cylindrical membrane is moved to the leading new tube by the insertion operation. When the tube is reversed and moved from the inner peripheral side to the outer peripheral side of the piece at the front end in the insertion direction of the new pipe piece, and then the second and subsequent new pipe pieces are inserted, the leading new pipe piece is also inserted by the insertion operation. Since it is moved forward, the cylindrical membrane is sequentially transferred to the outer peripheral side of the leading new pipe piece. Therefore, along with the formation of the rehabilitation pipe in the existing pipe, the cylindrical film between the existing pipe and the rehabilitation pipe Will be introduced at the same time. That is, the rehabilitation pipe forming operation also introduces the cylindrical membrane, and there is no need to separately perform the cylindrical membrane introduction operation.
また、円筒状膜と新管ピースとの間の間隙に対する充填材の注入は、新管ピースの挿入動作中に行われるので、この挿入動作によって新管ピースと既設管との間に生じる、新管ピースとほぼ同じ長さの比較的短い範囲の間隙に充填材を注入するように作業することができ、従って、充填材を間隙の隅々まで満遍なく行き渡らせることができる。従って、新管ピースで形成される更生管と既設管とが全体において確実に一体化され、更生後の既設管は所期の強度と性能を有するものになる。   In addition, since the filler material is injected into the gap between the cylindrical membrane and the new tube piece during the insertion operation of the new tube piece, a new tube generated between the new tube piece and the existing tube is generated by this insertion operation. It is possible to work to inject the filler into a relatively short range of gaps of approximately the same length as the tube piece, so that the filler can be evenly distributed throughout the gap. Therefore, the rehabilitated pipe formed by the new pipe piece and the existing pipe are reliably integrated as a whole, and the existing pipe after the rehabilitation has the intended strength and performance.
請求項2に係る既設管補修方法は、上記先頭の新管ピースの挿入方向前方端部が、上記円筒状膜の反転動作を円滑に行うため滑らかな滑面とされたことを特徴とする。   The existing pipe repairing method according to claim 2 is characterized in that the front end portion of the leading new pipe piece in the insertion direction has a smooth smooth surface for smoothly performing the reversing operation of the cylindrical film.
この構成によれば、円筒状膜の反転が摩擦係数の小さい滑面で損傷することなく円滑に行われ、既設管と更生管との間へ導入される円筒状膜に求められる所期の作用が確実に得られる。   According to this configuration, the inversion of the cylindrical film is smoothly performed without being damaged by the smooth surface having a small friction coefficient, and an expected action required for the cylindrical film introduced between the existing pipe and the rehabilitation pipe. Is definitely obtained.
請求項3に係る既設管補修方法は、上記滑面が、上記先頭の新管ピースを軸線を含む面で切った断面で見て、弧状を呈していることを特徴とする。   The existing pipe repairing method according to claim 3 is characterized in that the smooth surface has an arc shape when viewed from a cross section obtained by cutting the leading new pipe piece with a plane including an axis.
この構成によれば、円筒状膜は、反転の際、上記滑面に均一に接した状態で案内され、従って偏重した力の作用を受けることなく円滑に反転される。   According to this configuration, the cylindrical film is guided in a state of being in uniform contact with the smooth surface at the time of reversal, and is thus smoothly reversed without being subjected to the action of an uneven force.
請求項4に係る既設管補修方法は、上記滑面が、上記新管ピース挿入方向前方端部に装着可能の反転用リングに形成されていることを特徴とする。   The existing pipe repairing method according to claim 4 is characterized in that the smooth surface is formed on a reversing ring that can be attached to the front end of the new pipe piece in the insertion direction.
この構成によれば、反転用リングを先頭の新管ピースの挿入方向前端部へ単に装着するだけで、当該先頭の新管ピースに簡単に有利な滑面をもたらすことができ、その際、円筒状膜の性状に相応しい材質の反転用リングを使用すれば、反転をより効果的に行うことができる。   According to this configuration, simply attaching the reversing ring to the front end of the leading new tube piece in the insertion direction can easily provide an advantageous smooth surface to the leading new tube piece. If a reversing ring made of a material suitable for the properties of the film is used, reversal can be performed more effectively.
請求項5に係る既設管補修方法は、上記先頭の新管ピースに、当該新管ピースの内側から外側に貫通するノズルを形成し、上記充填材の充填は、該ノズルに連結された管体を通して供給される充填材を該ノズルから上記新管ピースと円筒状膜との間に注入して行われることを特徴とする。   In the existing pipe repairing method according to claim 5, a nozzle penetrating from the inside to the outside of the new pipe piece is formed in the leading new pipe piece, and filling of the filler is performed by a pipe body connected to the nozzle. The filler supplied through the nozzle is injected between the new tube piece and the cylindrical membrane from the nozzle.
この構成によれば、新管ピースの挿入動作中に、既設管と先頭の新管ピースとの間に生じる間隙への充填材の注入が、上記ノズルから容易に行うことができ、しかも充填材の注入が上記間隙の至近から行われるので、充填材を上記間隙へ確実に満遍なく行き渡らせることができる。   According to this configuration, the filler can be easily injected from the nozzle into the gap generated between the existing pipe and the leading new pipe piece during the insertion operation of the new pipe piece. Therefore, the filler can be surely spread evenly over the gap.
請求項6に係る既設管補修方法は、上記先頭の新管ピースが、当該新管ピースの外周面の、上記ノズルより上記挿入方向前端部の側の位置に、当該新管ピースと上記円筒状膜とに密着する環状のシール材を有していることを特徴とする。   In the existing pipe repairing method according to claim 6, the new pipe piece and the cylindrical shape are arranged such that the leading new pipe piece is positioned on the outer peripheral surface of the new pipe piece on the front end side in the insertion direction from the nozzle. It has the cyclic | annular sealing material closely_contact | adhered to a film | membrane.
この構成によれば、既設管と先頭の新管ピースとの間に生じる間隙へ注入された充填材が、該間隙内に確実に留保される。   According to this configuration, the filler injected into the gap formed between the existing pipe and the leading new pipe piece is reliably retained in the gap.
請求項7に係る既設管補修方法は、上記シール材が、流体を注入、排出することによって弾性的に膨張、収縮可能のチューブであることを特徴とする。   The existing pipe repairing method according to claim 7 is characterized in that the sealing material is a tube that can be elastically expanded and contracted by injecting and discharging a fluid.
この構成によれば、上記先頭の新管ピースへのシール材の取付けを嵌装によって容易に行うことができ、また、上記先頭の新管ピースを既設管内へ挿入する際や該先頭の新管ピースを既設管内で移動させる際には、チューブを収縮させことにより挿入や移動が容易になり、充填材注入の際には、チューブを膨張させることにより円筒状膜に対する圧着の度合いを高め、上記間隙からの充填材の流出阻止作用を強化することができる。   According to this configuration, it is possible to easily attach the sealing material to the leading new pipe piece by fitting, and when inserting the leading new pipe piece into an existing pipe or the leading new pipe piece When moving the piece in the existing pipe, it becomes easy to insert and move by contracting the tube, and when injecting the filler, the degree of pressure-bonding to the cylindrical membrane is increased by expanding the tube. The effect of preventing the filler from flowing out from the gap can be enhanced.
請求項8に係る既設管補修方法は、上記円筒状膜の一端部の上記既設管一端側開口への密着固定が、上記既設管の一端側開口部に嵌合固定される嵌合部を有する環状エンドパッキンにより該円筒状膜の一端部が上記既設管の一端側開口部の縁部に挟まれるように行われることを特徴とする。   The existing pipe repairing method according to claim 8 has a fitting portion in which the tight fixing of the one end portion of the cylindrical membrane to the opening on the one end side of the existing tube is fitted and fixed to the one end side opening portion of the existing pipe. One end portion of the cylindrical film is sandwiched between edges of one end side opening of the existing pipe by the annular end packing.
この構成によれば、既設管の一端側開口部に対する円筒状膜の一端部の全周に渡る密着固定を、環状エンドパッキンを使用することによって、簡単且つ容易に行うことができる。また、この環状エンドパッキンを使用することによって、充填材注入間隙の一端側を密閉し、既設管一端側からの充填材の漏出を容易に防止することができる。   According to this configuration, it is possible to easily and easily perform close contact and fixation over the entire circumference of one end portion of the cylindrical film with respect to the opening portion on one end side of the existing pipe by using the annular end packing. In addition, by using this annular end packing, one end side of the filler injection gap can be sealed, and leakage of the filler from one end side of the existing pipe can be easily prevented.
請求項9に係る既設管補修方法は、上記先頭の新管ピースに代え、先端部外表面が滑らかな滑面となっている先導筒状体を用いることを特徴とする。   The existing pipe repairing method according to claim 9 is characterized in that, instead of the leading new pipe piece, a leading cylindrical body having a smooth outer surface at the tip end portion is used.
この構成によれば、先端部外表面が滑らかな滑面となっていて、充填材注入用の装置や充填材注入間隙を密閉するためのシール材を予め設備することのできる先導筒状体が先頭の新管ピースに代えて用いられるので、円筒状膜の最良の反転や、充填材の効果的注入を行うための準備が簡単に整えられ、既設管補修作業を迅速に進めることができる。   According to this configuration, the leading cylindrical body that has a smooth outer surface at the tip end portion and can be equipped in advance with a filler injection device and a sealing material for sealing the filler injection gap is provided. Since it is used in place of the leading new pipe piece, preparations for the best inversion of the cylindrical membrane and effective injection of the filler can be easily made, and the existing pipe repair work can be proceeded quickly.
本発明によれば、既設管への新管ピースの挿入と同時に、その挿入移動によって円筒状膜の導入が行われ、また円筒状膜と新管ピースとの間の間隙への充填材の注入も新管ピースの挿入動作中に行われる。従って、円筒状膜の導入や、充填材の注入を別途行わない分、既設管補修作業に要する手間や、作業時間、作業コストが省け、既設管を更生するための補修作業が効率よく達成される。   According to the present invention, simultaneously with the insertion of a new pipe piece into an existing pipe, the cylindrical film is introduced by the insertion movement, and the filling material is injected into the gap between the cylindrical film and the new pipe piece. Is also performed during the insertion of the new tube piece. Therefore, since the introduction of the cylindrical membrane and the injection of the filler are not performed separately, the labor, time and cost required for the existing pipe repair work can be saved, and the repair work for rehabilitating the existing pipe can be achieved efficiently. The
以下、図面に基づいて本発明の実施の形態について詳細に説明する。本実施の形態に係る既設管補修方法の補修対象として、図7に示したような一般的な構成の下水道施設を例に説明する。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. A sewage facility having a general configuration as shown in FIG. 7 will be described as an example of a repair target of the existing pipe repair method according to the present embodiment.
図7に示すように、所定間隔を置いて設置されたマンホール101と102との間には既設管としての下水道本管100が配置されている。図示のように、老朽化下水導本管100には亀裂110、ひび割れ111、離脱部112などが発生している。以下の説明では、マンホール101が発進側マンホール、マンホール102が到達側マンホールとなっている。   As shown in FIG. 7, a sewer main 100 as an existing pipe is arranged between manholes 101 and 102 installed at a predetermined interval. As shown in the figure, the aging sewer main pipe 100 has a crack 110, a crack 111, a detached portion 112, and the like. In the following description, the manhole 101 is the start side manhole, and the manhole 102 is the arrival side manhole.
以下に詳述するように、このような老朽化下水道本管100を補修するため、発進側マンホール101から下水道本管100内へ新管ピースが順次継ぎ足されて挿入され、この挿入が到達側マンホール102に達するまで行われて下水道本管100内に更生管が形成される。その際、下水道本管100とその内部に形成された更生管との間の間隙には円筒状膜が配置され、更にこの円筒状膜と更生管との間の間隙には充填材が注入される。   As will be described in detail below, in order to repair such an aged sewer main 100, new pipe pieces are sequentially inserted and inserted from the start side manhole 101 into the sewer main 100, and this insertion is connected to the arrival side manhole. A rehabilitation pipe is formed in the sewer main pipe 100 until it reaches 102. At that time, a cylindrical film is disposed in the gap between the sewer main pipe 100 and the rehabilitation pipe formed therein, and a filler is injected into the gap between the cylindrical film and the rehabilitation pipe. The
上記新管ピースは、所定の長さを有する、例えばヒューム管、合成樹脂管(例えば、PE管、PB管、塩ビ管)、陶管、鋼管等である。また、上記円筒状膜は、柔軟性、可撓性、伸縮性、不透水性、耐摩耗性及び所定の耐圧性を有し、材料としてはポリエステル、ポリエチレン、ナイロンなどの有機系樹脂材料が適しており、補強のためにガラスチップなどを混入させることも可能である。また、円筒状膜は、拡張した状態において少なくとも下水道本管100の内壁に密着しうる外径を有するように構成されている。充填材は、例えばセメントミルク、水ガラス、ベントナイト等、硬化時間、粘度が自由に調整可能の水硬化性材料である。   The new pipe piece has a predetermined length, for example, a fume pipe, a synthetic resin pipe (for example, a PE pipe, a PB pipe, a polyvinyl chloride pipe), a ceramic pipe, a steel pipe, or the like. The cylindrical film has flexibility, flexibility, stretchability, water impermeability, abrasion resistance, and predetermined pressure resistance, and an organic resin material such as polyester, polyethylene, or nylon is suitable as the material. It is also possible to mix glass chips or the like for reinforcement. Further, the cylindrical membrane is configured to have an outer diameter that can be in close contact with at least the inner wall of the sewer main 100 in the expanded state. The filler is a water curable material whose curing time and viscosity can be freely adjusted, such as cement milk, water glass, bentonite, and the like.
図1〜図4は、本発明による下水道本管補修方法の好ましい実施の形態を工程順に示している。   1 to 4 show a preferred embodiment of a sewer main repair method according to the present invention in the order of steps.
準備段階で、円筒状膜20が収納容器21から引き出され、次いで下水道本管内に更生管を形成するために準備された新管ピース40−n・・40−3,40−2,40−1内を通して下水導管100の一端側開口部100aのところまで引き延ばされる。また、充填材貯留槽31に接続されている充填材供給管30も同様に、管ピース40−n・・40−3,40−2,40−1内を通して下水道本管100の一端側開口部100aの付近まで延伸せしめられる。   In the preparation stage, the cylindrical membrane 20 is pulled out from the storage container 21, and then the new pipe pieces 40-n, 40-3, 40-2, 40-1 prepared for forming the rehabilitation pipe in the sewer main pipe. The inside of the sewage conduit 100 is extended to the one end side opening 100a through the inside. Similarly, the filler supply pipe 30 connected to the filler storage tank 31 passes through the pipe pieces 40-n, 40-3, 40-2, and 40-1, and opens at one end of the sewer main pipe 100. The film is stretched to the vicinity of 100a.
新管ピース40−2〜40−nは、例えば、搬送車(図示せず)の上に積み重ねた状態で載置され、一つずつ発進側マンホール101内へ吊り下ろされる。図1では、先頭の新管ピース40−1が既にマンホール101内へ吊り下ろされている状態が示されている。なお、場所に余裕があれば、新管ピース40−2〜40−nは、図示のように、地面の上に並べて配列しておいてもよい。   The new pipe pieces 40-2 to 40-n are placed in a state where they are stacked on a transport vehicle (not shown), for example, and are suspended one by one into the start side manhole 101. In FIG. 1, a state where the leading new pipe piece 40-1 is already suspended in the manhole 101 is shown. If there is room, the new pipe pieces 40-2 to 40-n may be arranged side by side on the ground as illustrated.
このような準備作業を行った後、円筒状膜20の一端部の全周が下水道本管100の一端側開口部100aに密着固定される。この密着固定は、下水道本管100の一端側開口部100aに嵌合固定される嵌合部60aを有する環状エンドパッキン60を用いて、円筒状膜20の一端部が下水道本管100の一端側開口部100aの縁部に挟まれるように行われる。環状エンドパッキン60はゴム等の弾性材料で製作されており、その内径は新管ピース40−1〜40−nの外径よりも僅かに小径となされている。   After performing such preparatory work, the entire circumference of one end of the cylindrical membrane 20 is tightly fixed to the one end opening 100 a of the sewer main 100. This tight fixation uses an annular end packing 60 having a fitting portion 60a fitted and fixed to one end opening 100a of the sewer main 100, and one end of the cylindrical membrane 20 is one end of the sewer main 100. It is performed so as to be sandwiched between the edges of the opening 100a. The annular end packing 60 is made of an elastic material such as rubber, and the inner diameter thereof is slightly smaller than the outer diameter of the new tube pieces 40-1 to 40-n.
先頭の新管ピース40−1には次のような装備が施されている。即ち、その内側から外側に貫通するノズル14が装着され、このノズルは上記充填材供給管30に接続されるようになされている。また、先頭の新管ピース40−1には、その外周面の、ノズル14より挿入方向前端部40−1aの側の位置に、環状のシール材15が装着されている。この環状のシール材15は、流体を注入、排出することによって弾性的に膨張、収縮可能の環状ゴムチューブより成っている。   The leading new pipe piece 40-1 is equipped with the following equipment. That is, a nozzle 14 penetrating from the inside to the outside is mounted, and this nozzle is connected to the filler supply pipe 30. In addition, an annular sealing material 15 is attached to the front new tube piece 40-1 at a position closer to the front end portion 40-1a in the insertion direction than the nozzle 14 on the outer peripheral surface. The annular sealing material 15 is made of an annular rubber tube that can be elastically expanded and contracted by injecting and discharging a fluid.
また、先頭の新管ピース40−1の挿入方向前端部40−1aは滑らかな滑面とされており、この滑面は、好ましくは、先頭の新管ピース40−1を軸線の方向に切った断面で見て弧状を呈している。   In addition, the front end 40-1a in the insertion direction of the leading new tube piece 40-1 has a smooth smooth surface, and this smooth surface preferably cuts the leading new tube piece 40-1 in the direction of the axis. The cross section is arc-shaped.
図1に示すように、マンホール101内で下水道本管100と同軸的に配置された先頭の新管ピース40−1は、マンホール101内に配置された従来公知の押動装置、例えばジャッキ(図示せず)によって下水導管100へ押し進められる。その際、ノズル14は充填材供給管30に接続されており、環状ゴムチューブ15には空気圧縮器(図示せず)が接続されているが、環状ゴムチューブ15は収縮可能な状態になされており、高さが低い状態に変形可能である。従って、環状ゴムチューブ15は環状エンドパッキン60の開口部を容易に通過することができる。環状ゴムチューブ15が環状エンドパッキン60を通過した時点で環状ゴムチューブ15内には圧縮空気が供給され、膨張せしめられてその高さが高められ、円筒状膜20を介して下水道本管100の内周面に圧接される。   As shown in FIG. 1, a leading new pipe piece 40-1 arranged coaxially with the sewer main 100 in the manhole 101 is a conventionally known pushing device such as a jack (see FIG. (Not shown) and pushed to the sewage conduit 100. At that time, the nozzle 14 is connected to the filler supply pipe 30 and an air compressor (not shown) is connected to the annular rubber tube 15, but the annular rubber tube 15 is in a contractible state. And can be transformed into a low height state. Therefore, the annular rubber tube 15 can easily pass through the opening of the annular end packing 60. When the annular rubber tube 15 passes through the annular end packing 60, compressed air is supplied into the annular rubber tube 15 and expanded to increase its height, and the height of the sewer main pipe 100 is increased via the cylindrical membrane 20. It is in pressure contact with the inner peripheral surface.
上記ジャッキにより矢印の方向に下水道本管100内へ押入される先頭の新管ピース40−1の挿入方向前端部40−1aは円筒状膜20に接触しており、この円筒状膜20はその先端が下水道本管100の発進側管口100aに固定されているため、円筒状膜20は、先頭の新管ピース40−1の挿入方向前端部40−1aによって、先頭の新管ピース40−1の前進距離に相当する長さ分だけ新管ピース40−1の外側へ反転移動せしめられ、同時に同じ長さ分だけ収納装置21から新たに引き出される。   The insertion direction front end 40-1a of the leading new pipe piece 40-1 pushed into the sewer main pipe 100 in the direction of the arrow by the jack is in contact with the cylindrical film 20, and the cylindrical film 20 Since the front end is fixed to the start side pipe port 100a of the sewer main pipe 100, the cylindrical membrane 20 is inserted into the leading new pipe piece 40- by the leading end 40-1a in the insertion direction of the leading new pipe piece 40-1. The new tube piece 40-1 is reversely moved to the outside by a length corresponding to the advance distance of 1, and at the same time, it is newly pulled out of the storage device 21 by the same length.
先頭の新管ピース40−1の押動に伴って、下水道本管100と新管ピース40−1との間の間隙には円筒状膜20が配置されて行き、また円筒状膜20、環状エンドパッキン60、環状ゴムチューブ15によって画定された閉鎖間隙が次第に拡張されつつ形成される。この閉鎖空間の形成開始と同時にノズル14には充填材貯留槽31からポンプPにより充填材が供給され、吐出口14aから上記閉鎖間隙へ注入される。この注入は該閉鎖間隙の拡張に伴って行われ、従って充填材は形成される閉鎖間隙全体に充満する。   As the leading new pipe piece 40-1 is pushed, the cylindrical film 20 is disposed in the gap between the sewer main pipe 100 and the new pipe piece 40-1, and the cylindrical film 20 is annular. A closing gap defined by the end packing 60 and the annular rubber tube 15 is formed while being gradually expanded. Simultaneously with the start of the formation of the closed space, the filler is supplied from the filler storage tank 31 to the nozzle 14 by the pump P and injected into the closed gap from the discharge port 14a. This injection takes place with the expansion of the closing gap, so that the filling material fills the entire closing gap to be formed.
図2は新管ピース40−1の挿入が行われた後の状態を示しており、この挿入によって形成された閉鎖間隙80には注入した充填材が充満した状態になっている。充満した充填材の下水道本管100外への漏出は、円筒状膜20によって阻止される。   FIG. 2 shows a state after the new tube piece 40-1 is inserted, and the closed gap 80 formed by this insertion is filled with the injected filler. Leakage of the filled material out of the sewer main 100 is blocked by the cylindrical membrane 20.
図3に示すように、新管ピース40−1の挿入後、発進側マンホール101内には、第2の新管ピース40−2が下ろされ、先頭の新管ピース40−1の後部に接続される。接続された第2の新管ピース40−2はジャッキにより押動され、下水道本管100内へ挿入される。図4は、第2の新管ピース40−2の挿入が終了したときの状態を示している。この挿入に伴う先頭の新管ピース40−1の前進移動によって、円筒状膜20はこの前進移動の距離分だけ新管ピース40−1の外側へ反転移行せしめられ且つ収納装置21から新たに引き出される。また、この先頭の新管ピース40−1の前進移動によって新たに生じた閉鎖間隙への充填材注入が同時に行われる。   As shown in FIG. 3, after the new tube piece 40-1 is inserted, the second new tube piece 40-2 is lowered into the start side manhole 101 and connected to the rear portion of the leading new tube piece 40-1. Is done. The connected second new pipe piece 40-2 is pushed by a jack and inserted into the sewer main pipe 100. FIG. 4 shows a state when the insertion of the second new tube piece 40-2 is finished. Due to the forward movement of the leading new tube piece 40-1 accompanying this insertion, the cylindrical membrane 20 is reversed and shifted to the outside of the new tube piece 40-1 by the distance of the forward movement and is newly pulled out of the storage device 21. It is. In addition, the filling material is simultaneously injected into the closed gap newly generated by the forward movement of the leading new tube piece 40-1.
同様にして、第3の新管ピース40−3(図4)及びそれ以降の新管ピースの挿入が到達側マンホール102に達するまで順次行われる。   Similarly, the insertion of the third new pipe piece 40-3 (FIG. 4) and the subsequent new pipe pieces is sequentially performed until the reaching-side manhole 102 is reached.
上記各作業を完了した時点で、発進側マンホール101と到達側マンホール102との間の下水道本管100内には、接続された多数の新管ピースから成る更生管が形成され、この更生管と下水道本管100との間の間隙には、円筒状膜20と充填材とが配設された状態となる。   When each of the above operations is completed, a rehabilitation pipe made up of a number of connected new pipe pieces is formed in the sewer main pipe 100 between the start-side manhole 101 and the arrival-side manhole 102. In the gap with the sewer main 100, the cylindrical membrane 20 and the filler are disposed.
このように、円筒状膜20の配設が、更生管を形成する作業に伴って行われるので、その配設作業を別途行う必要がなく、下水道本管100の補修が少ない作業で効率良く行える。   As described above, the cylindrical membrane 20 is disposed along with the operation of forming the rehabilitation pipe, so that it is not necessary to perform the disposition work separately, and the sewer main pipe 100 can be efficiently repaired with less work. .
充填材の注入は、上述のように、下水道本管100への各新管ピースの挿入の際にその都度発生する比較的短い範囲の間隙に対して行われるので、充填材をこの間隙に余すとこなく行き渡らせることができ、従って、この間隙に未充填の部分が残されることはない。従って、下水道本管と更生管は硬化後の充填材によって完全な一体物となされ、座屈するおそれのない強固な更生管が形成される。   As described above, the filling material is injected into the gap in a relatively short range that is generated each time the new pipe piece is inserted into the sewer main pipe 100, so that the filling material is left in the gap. It can be spread throughout, so no unfilled part is left in this gap. Therefore, the sewer main pipe and the rehabilitation pipe are completely integrated by the hardened filler, and a strong rehabilitation pipe without the possibility of buckling is formed.
また、地震などの地変により、下水道本管や更生管に変形や亀裂や段差や隙間が生じた場合でも、上記円筒状膜がこれに追随して伸張あるいは変形し、それら隙間等を被覆乃至カバーすることができ、修理が行われるまでの応急的な密閉性を確保することができる。   In addition, even if a sewer main or rehabilitation pipe is deformed, cracked, stepped, or crevice due to a ground deformation such as an earthquake, the cylindrical membrane is stretched or deformed following this to cover or cover the crevice. It is possible to secure an emergency seal until repair is performed.
図5は、先頭の新管ピース40−1の挿入方向前方端40−1aに設けられる滑らかな滑面を、該挿入方向前方端に装着可能の反転用リング41により形成する場合を示している。図示のように、反転用リング41は、その前方部41aが、先頭の新管ピース40−1を軸線を含む断面で見て円弧状の滑面を有しており、後方部41bが先頭の新管ピース40−1の挿入方向前方端に嵌入するように形成されている。この反転用リング41は、円筒状膜20に対して摩擦係数の小さいプラスチック材料で製作される。この反転用リング41を先頭の新管ピース40−1の挿入方向前端部40−1aへ嵌着するだけで、該新管ピース40−1には有効な滑面が容易にもたらされる。   FIG. 5 shows a case where a smooth smooth surface provided at the front end 40-1a in the insertion direction of the leading new tube piece 40-1 is formed by a reversing ring 41 that can be attached to the front end in the insertion direction. . As shown in the figure, the reversing ring 41 has a front part 41a having an arcuate smooth surface when the front new tube piece 40-1 is seen in a cross section including the axis, and the rear part 41b is the front. It is formed so as to be fitted at the front end in the insertion direction of the new tube piece 40-1. The reversing ring 41 is made of a plastic material having a small friction coefficient with respect to the cylindrical film 20. By simply fitting the reversing ring 41 to the front end 40-1a in the insertion direction of the leading new tube piece 40-1, an effective smooth surface is easily provided on the new tube piece 40-1.
図6は、先頭の新管ピース40−1に代えて先導筒状体10を用いる場合を示している。この先導筒状体10は、先頭の新管ピース40−1と同様の外径を有し、先端部外表面10aが滑らかな滑面となっており、後端部10bは先頭の新管ピース40−1の先端部と結合するように形成されている。この先導筒状体10にはノズル14と環状ゴムチューブ15が、先頭の新管ピース40−1の場合と同様に設けられている。これらノズル14と環状ゴムチューブ15の作用は、先頭の新管ピース40−1に関して上述したものと同様である。   FIG. 6 shows a case where the leading tubular body 10 is used instead of the leading new tube piece 40-1. The leading tubular body 10 has the same outer diameter as the leading new tube piece 40-1, the tip outer surface 10a is a smooth smooth surface, and the trailing end 10b is the leading new tube piece. It is formed so as to be coupled to the front end portion of 40-1. The leading cylindrical body 10 is provided with a nozzle 14 and an annular rubber tube 15 as in the case of the leading new tube piece 40-1. The actions of the nozzle 14 and the annular rubber tube 15 are the same as those described above with respect to the leading new tube piece 40-1.
この先導筒状体10は鉄製であったり、あるいはプラスチックを成形して軽量に製作することができ、プラスチック製である場合には、搬送時や作業時に極めて取り扱いやすくなる。また、この先導筒状体10を使用すれば、先頭の新管ピース40−1にノズル14を設けたり、環状ゴムチューブ15を装着したりする必要はなく、更に、円筒状膜20の最良の反転や、充填材の効果的注入を行うための準備が簡単に整えられ、既設管補修作業を迅速に進めることができる。   The leading cylindrical body 10 can be made of iron or can be made lightly by molding plastic, and when it is made of plastic, it is very easy to handle at the time of transportation and work. Moreover, if this leading cylindrical body 10 is used, it is not necessary to provide the nozzle 14 or the annular rubber tube 15 in the leading new tube piece 40-1, and furthermore, the best of the cylindrical membrane 20 is required. Preparations for reversal and effective injection of fillers are easily made, and existing pipe repair work can be proceeded quickly.
本発明は上記実施の形態に限定されるものではなく、その要旨を逸脱しない範囲で種々変更可能であることはいうまでもない。例えば、上記実施の形態では、下水道本管100の補修の場合を例示しているが、本発明は、図7に示す取付け管103について実施してもよく、更に他の様々な既設管について実施することができる。   It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, in the above embodiment, the case of repairing the sewer main 100 is illustrated, but the present invention may be implemented with respect to the attachment pipe 103 shown in FIG. 7, and may be implemented with respect to various other existing pipes. can do.
また、上記環状ゴムチューブ15に代えて、中実の環状ゴム帯を先頭の新管ピース40−1又は先導筒状体10の外周面上ヘ嵌着し、これら新管ピース又は先導筒状体が下水道本管100内へ挿入された後、両側方から圧縮して当該環状ゴム帯の半径方向高さを高くし、円筒状膜20へ圧接するようにしてもよい。   Further, instead of the annular rubber tube 15, a solid annular rubber band is fitted on the outer peripheral surface of the leading new tube piece 40-1 or the leading cylindrical body 10, and the new tubular piece or the leading cylindrical body. Is inserted into the sewer main 100 and then compressed from both sides to increase the radial height of the annular rubber band and press against the cylindrical membrane 20.
また、上記環状エンドパッキン60は、上記先頭の新管ピース40−1又は先導筒状体10を下水道本管100内へ一部挿入した後に、下水道本管100の一端側開口部100aに嵌合固定することができ、その場合には、環状エンドパッキン60を通過させて上記環状ゴムチューブ15や環状ゴム帯を推進させる必要がなく、これら環状ゴムチューブや環状ゴム帯の高さと環状エンドパッキンの開口径との関係にさほど注意を払う必要はない。   The annular end packing 60 is fitted into the opening 100a on the one end side of the sewer main pipe 100 after partially inserting the leading new pipe piece 40-1 or the leading tubular body 10 into the sewer main pipe 100. In this case, it is not necessary to propel the annular rubber tube 15 or the annular rubber band through the annular end packing 60, and the height of the annular rubber tube or the annular rubber band and the annular end packing There is no need to pay much attention to the relationship with the aperture diameter.
先頭の新管ピースを既設管内へ挿入する準備が整えられた状態を示す図である。It is a figure which shows the state where the preparation which inserts the top new pipe piece into an existing pipe was prepared. 先頭の新管ピースを既設管内へ挿入した後の状態を示す図である。It is a figure which shows the state after inserting the head new pipe piece in the existing pipe. 第2の新管ピースを先頭の新管ピースの後部へ配置した状態示す図である。It is a figure which shows the state which has arrange | positioned the 2nd new pipe piece to the rear part of the top new pipe piece. 第2の新管ピースを既設管内へ挿入した後の状態を示す図である。It is a figure which shows the state after inserting the 2nd new pipe piece in the existing pipe. 先頭の新管ピースの挿入方向前方端に円滑な滑面を有する反転用リングを取り付けた場合の拡大尺軸線方向縦断面図である。It is an enlarged scale axis direction longitudinal cross-sectional view at the time of attaching the inversion ring which has a smooth smooth surface in the insertion direction front end of the front new tube piece. 先頭の新管ピースに代えて用いられる先導円筒体の軸線方向縦断面を図5と同じ拡大尺で示す図である。It is a figure which shows the axial direction longitudinal cross-section of the leading cylindrical body used instead of the top new pipe piece on the same enlarged scale as FIG. 本発明に係る既設管補修方法を適用して更生される一般的な下水道設備の説明図である。It is explanatory drawing of the general sewer installation renovated by applying the existing pipe repair method which concerns on this invention.
符号の説明Explanation of symbols
10 先導筒状体
14 ノズル
15 シール材(環状ゴムチューブ)
20 円筒状膜
30 充填材供給管
40−1〜40−n 新管ピース(40−1 先頭の新管ピース)
60 環状エンドパッキン
100 既設管(下水道本管)
101,102 マンホール
10 Leading cylindrical body 14 Nozzle 15 Sealing material (annular rubber tube)
20 Cylindrical membrane 30 Filler supply pipe 40-1 to 40-n New pipe piece (40-1 Leading new pipe piece)
60 Ring end packing 100 Existing pipe (Sewer main)
101,102 Manhole

Claims (9)

  1. 補修対象の既設管内へ既製の新管ピースを順次継ぎ足しながら挿入することにより該既設管内に更生管を形成し、該更生管と前記既設管との間に経時硬化性の充填材を充填して前記既設管を補修する既設管補修方法において、
    可撓性及び不透水性を有する円筒状膜の一端部の全周を前記既設管の一端側開口部の縁部全周に密着固定し、
    前記新管ピースの挿入は、
    前記円筒状膜の他端部を前記新管ピース内に挿通させた状態として行われ、
    先頭の新管ピースの挿入は、その挿入方向前端部で前記円筒状膜を押して反転させつつ前記既設管の他端側まで前進移動されることで行われ、
    後続の新管ピースの挿入は、前記新管ピースを押し移動させながら順次行われ、
    前記充填材の充填は、
    前記新管ピースの挿入動作中に、前記円筒状膜と新管ピースとの間の間隙に対して行われることを特徴とする既設管補修方法。
    A renovated pipe is formed in the existing pipe by sequentially inserting new pipe pieces into the existing pipe to be repaired, and a time-curable filler is filled between the renovated pipe and the existing pipe. In the existing pipe repair method for repairing the existing pipe,
    The entire circumference of one end of the cylindrical membrane having flexibility and water impermeability is closely fixed to the entire circumference of the edge of the one end opening of the existing pipe,
    The insertion of the new tube piece is
    Performed as a state where the other end of the cylindrical membrane is inserted into the new tube piece,
    The insertion of the leading new tube piece is performed by moving forward to the other end side of the existing tube while pushing and inverting the cylindrical membrane at the front end portion in the insertion direction,
    Subsequent insertion of the new tube piece is performed sequentially while pushing and moving the new tube piece,
    The filling of the filler is
    An existing pipe repairing method, which is performed on the gap between the cylindrical membrane and the new pipe piece during the insertion operation of the new pipe piece.
  2. 前記先頭の新管ピースの挿入方向前方端部は、前記円筒状膜の反転動作を円滑に行うため滑らかな滑面とされたことを特徴とする請求項1に記載の既設管補修方法。   2. The existing pipe repairing method according to claim 1, wherein a front end portion of the leading new pipe piece in the insertion direction is formed as a smooth smooth surface so as to smoothly perform the reversing operation of the cylindrical film.
  3. 前記滑面は、前記先頭の新管ピースを軸線を含む面で切った断面で見て、弧状を呈していることを特徴とする請求項2に記載の既設管補修方法。   3. The existing pipe repairing method according to claim 2, wherein the smooth surface has an arc shape when viewed from a cross section obtained by cutting the leading new pipe piece along a plane including an axis. 4.
  4. 前記滑面は、前記新管ピース挿入方向前方端部に装着可能の反転用リングに形成されていることを特徴とする請求項3に記載の既設管補修方法。   The said smooth surface is formed in the ring for reversal which can be mounted | worn at the front-end part of the said new pipe piece insertion direction, The existing pipe repair method of Claim 3 characterized by the above-mentioned.
  5. 前記先頭の新管ピースには、当該新管ピースの内側から外側に貫通するノズルが形成され、前記充填材の充填は、該ノズルに連結された管体を通して供給される充填材を該ノズルから前記新管ピースと円筒状膜との間に注入して行われることを特徴とする請求項1又は2に記載の既設管補修方法。   A nozzle penetrating from the inside to the outside of the new tube piece is formed in the leading new tube piece, and the filling material is filled from the nozzle with a filler supplied through a tube connected to the nozzle. The existing pipe repair method according to claim 1 or 2, wherein the repair is performed by injecting between the new pipe piece and the cylindrical film.
  6. 前記先頭の新管ピースは、当該新管ピースの外周面の、前記ノズルより前記挿入方向前端部の側の位置に、当該新管ピースと前記円筒状膜とに密着する環状のシール材を有していることを特徴とする請求項5に記載の既設管補修方法。   The leading new pipe piece has an annular sealing material that is in close contact with the new pipe piece and the cylindrical membrane at a position on the outer peripheral surface of the new pipe piece on the front end side in the insertion direction from the nozzle. The existing pipe repair method according to claim 5, wherein the pipe is repaired.
  7. 前記シール材は、流体を注入、排出することによって弾性的に膨張、収縮可能のチューブであることを特徴とする請求項6に記載の既設管補修方法。   The existing pipe repairing method according to claim 6, wherein the sealing material is a tube that can elastically expand and contract by injecting and discharging fluid.
  8. 前記円筒状膜の一端部の前記既設管の一端側開口への密着固定は、前記既設管の一端側開口部に嵌合固定される嵌合部を有する環状エンドパッキンにより該円筒状膜の一端部が前記既設管の一端側開口部の縁部に挟まれるように行われることを特徴とする請求項1〜7の何れか1項に記載の既設管補修方法。   The one end of the cylindrical membrane is tightly fixed to the opening on the one end side of the existing tube. One end of the cylindrical membrane is formed by an annular end packing having a fitting portion fitted and fixed to the one end side opening of the existing tube. The existing pipe repair method according to any one of claims 1 to 7, wherein the part is performed so as to be sandwiched between edges of the one end side opening of the existing pipe.
  9. 前記先頭の新管ピースに代え、先端部外表面が滑らかな滑面となっている先導筒状体を用いることを特徴とする請求項1〜8のいずれか1項に記載の既設管補修方法。   The existing pipe repair method according to any one of claims 1 to 8, wherein a leading cylindrical body having a smooth outer surface at a tip end portion is used instead of the leading new pipe piece. .
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009185852A (en) * 2008-02-05 2009-08-20 Yoshika Kk Existing pipe repairing method
JP2017210841A (en) * 2016-05-27 2017-11-30 明石セミシールド建設株式会社 Method and structure for regenerating existing pipe

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118940A (en) * 1977-08-23 1978-10-10 Beane Frank Thomas Drain line and method of installing
JPH0791567A (en) * 1993-09-21 1995-04-04 Sekisui Chem Co Ltd Pipe laying method
JP2652655B2 (en) * 1988-04-01 1997-09-10 タキロン株式会社 Internal lining method for existing pipes
DE19858006C1 (en) * 1998-12-16 2000-08-10 Bilfinger Berger Bau Container with device for unloading and lowering pipes into ground has lifting device movable out of container inner space and equipped with at least one operable suspension for fixture to pipe
JP2003301690A (en) * 2002-04-11 2003-10-24 Kajima Corp Construction method and device for laying rehabilitation pipe in existing sewage pipe
JP2008062520A (en) * 2006-09-07 2008-03-21 Yoshika Kk Ready-made lining tube inserting apparatus, and ready-made lining tube inserting method using the same
JP2008095729A (en) * 2006-10-06 2008-04-24 Yoshika Kk Repair method of existing pipe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118940A (en) * 1977-08-23 1978-10-10 Beane Frank Thomas Drain line and method of installing
JP2652655B2 (en) * 1988-04-01 1997-09-10 タキロン株式会社 Internal lining method for existing pipes
JPH0791567A (en) * 1993-09-21 1995-04-04 Sekisui Chem Co Ltd Pipe laying method
DE19858006C1 (en) * 1998-12-16 2000-08-10 Bilfinger Berger Bau Container with device for unloading and lowering pipes into ground has lifting device movable out of container inner space and equipped with at least one operable suspension for fixture to pipe
JP2003301690A (en) * 2002-04-11 2003-10-24 Kajima Corp Construction method and device for laying rehabilitation pipe in existing sewage pipe
JP2008062520A (en) * 2006-09-07 2008-03-21 Yoshika Kk Ready-made lining tube inserting apparatus, and ready-made lining tube inserting method using the same
JP2008095729A (en) * 2006-10-06 2008-04-24 Yoshika Kk Repair method of existing pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009185852A (en) * 2008-02-05 2009-08-20 Yoshika Kk Existing pipe repairing method
JP2017210841A (en) * 2016-05-27 2017-11-30 明石セミシールド建設株式会社 Method and structure for regenerating existing pipe

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