JP4295584B2 - Rehabilitation of existing pipes - Google Patents

Rehabilitation of existing pipes Download PDF

Info

Publication number
JP4295584B2
JP4295584B2 JP2003317303A JP2003317303A JP4295584B2 JP 4295584 B2 JP4295584 B2 JP 4295584B2 JP 2003317303 A JP2003317303 A JP 2003317303A JP 2003317303 A JP2003317303 A JP 2003317303A JP 4295584 B2 JP4295584 B2 JP 4295584B2
Authority
JP
Japan
Prior art keywords
pipe
new
existing
corrugated
existing pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2003317303A
Other languages
Japanese (ja)
Other versions
JP2004218827A (en
Inventor
英男 鈴木
幸司 吉田
茂夫 射場
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Metal Products Co Ltd
Original Assignee
Nippon Steel Metal Products Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Metal Products Co Ltd filed Critical Nippon Steel Metal Products Co Ltd
Priority to JP2003317303A priority Critical patent/JP4295584B2/en
Publication of JP2004218827A publication Critical patent/JP2004218827A/en
Application granted granted Critical
Publication of JP4295584B2 publication Critical patent/JP4295584B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Sewage (AREA)

Description

この発明は、地中に埋設されて老朽化した、又は破損した上水道や下水道、農業用水路その他各種の排水管など(以下、これらを既設管という。)を、その中へ少し径が小さい新管(主としてコルゲートパイプ)を挿入し固定する、所謂パイプインパイプ工法で更生する方法の技術分野に属する。   The present invention is a new pipe with a slightly smaller diameter in it, which is buried in the ground and has deteriorated or damaged waterworks, sewers, agricultural waterways and other various drainage pipes (hereinafter referred to as existing pipes). It belongs to the technical field of a method of rehabilitation by the so-called pipe-in-pipe method of inserting and fixing (mainly corrugated pipe).

従来、地中埋設の老朽既設管や破損管を、所謂パイプインパイプ工法で更生する方法、技術は、下記の特許文献に種々提案されている。
特許文献1には、新管のグラウト注入口をネジ孔として形成し、このネジ孔へレベル調整ボルトをねじ込み、同レベル調整ボルトで既設管の底面に対する新管のレベル調整を行う。レベル調整後に、そのレベルを維持しつつ、グラウト注入口からグラウトを注入して新管を固定する方法が開示されている。新管の材質や構造についての詳しい説明は見当たらない。
Conventionally, various methods and techniques for rehabilitating old and existing underground pipes or damaged pipes by the so-called pipe-in-pipe method have been proposed in the following patent documents.
In Patent Document 1, a grout inlet of a new pipe is formed as a screw hole, a level adjustment bolt is screwed into this screw hole, and the level of the new pipe is adjusted with respect to the bottom surface of the existing pipe with the same level adjustment bolt. A method of fixing a new tube by injecting grout from a grout inlet while maintaining the level after adjusting the level is disclosed. There is no detailed explanation about the material and structure of the new tube.

特許文献2には、樹脂製新管の円周方向に複数箇所、管壁を貫通する金属製のネジ孔部材を取り付けて、前記ネジ孔へボルトをねじ込み、既設管の内面との間で新管の芯出しを行い、充填材を充填する方法が開示されている。
特許文献3には、新管の外面下部に車輪を含む管受け部材を、上部には浮き上がり防止ストッパをそれぞれ取り付け、前記新管を既設管の中へ挿入後、前記管受け部材および浮き上がり防止ストッパの高さ調節を新管の内側から行い、既設管に対する新管の位置調整を行った後に、中込材を充填する方法が開示されている。
In Patent Document 2, metal screw hole members penetrating the pipe wall at a plurality of locations in the circumferential direction of a new resin pipe are attached, bolts are screwed into the screw holes, and new pipes are connected to the inner surface of the existing pipe. A method of centering a tube and filling with a filler is disclosed.
In Patent Document 3, a pipe receiving member including a wheel is attached to the lower part of the outer surface of the new pipe, and a lifting prevention stopper is attached to the upper part. After inserting the new pipe into the existing pipe, the pipe receiving member and the lifting prevention stopper are inserted. Is adjusted from the inside of the new pipe, and after adjusting the position of the new pipe relative to the existing pipe, a method of filling the insert material is disclosed.

特許文献4には、例えば塩化ビニル樹脂の帯状材を製管機により螺旋状に巻きつつその縁部を接合して新管を製造し既設管の中へ挿入する。一方、前記新管の中へ搬入しやすい折り畳み式の構造とした支保材を新管の中で1m間隔で円筒状に組み立て、前記新管を内側から補剛する。そして、予め支保材に用意したナットを通じて新管を放射方向に貫通する孔あけを行い、その孔を通じて前記ナットを利用したスペーサーを放射方向に立て、既設管に対する新管の変形防止と浮き上がり防止並びに位置の固定を行い、その後中込材を充填して新管を固定する方法が開示されている。   In Patent Document 4, for example, a strip of vinyl chloride resin is spirally wound by a pipe making machine while joining the edges thereof to produce a new pipe and inserting it into an existing pipe. On the other hand, a support material having a folding structure that can be easily carried into the new pipe is assembled into a cylindrical shape at intervals of 1 m in the new pipe, and the new pipe is stiffened from the inside. Then, through a nut prepared in advance for the support material, a hole that penetrates the new pipe in the radial direction is formed, and a spacer using the nut is set in the radial direction through the hole to prevent the new pipe from being deformed and lifted. A method is disclosed in which the position is fixed, and then a new pipe is fixed by filling the insert.

特許文献5には、新管の外面下部にリング状取付け具により車輪を取り付け、前記車輪を利用して既設管の中へ新管を挿入する方法が開示されている。
特許文献6には、既設管の中へ新管を挿入するための管体搬送用台車が開示されている。
Patent Document 5 discloses a method in which a wheel is attached to the lower part of the outer surface of a new pipe with a ring-shaped fixture, and the new pipe is inserted into an existing pipe using the wheel.
Patent Document 6 discloses a carriage for conveying a tubular body for inserting a new pipe into an existing pipe.

特開平5−10476号公報JP-A-5-10476 特開平7−42874号公報JP 7-42874 A 特開平7−91567号公報JP-A-7-91567 特開平7−269742号公報JP 7-269742 A 特開2001−21063号公報Japanese Patent Laid-Open No. 2001-21063 特開2001−114096号公報Japanese Patent Laid-Open No. 2001-114096

特許文献1〜6の方法は、既設管及び新管ともにコンクリート管であるか、剛性のある鋼管を対象としている。そのため既設管と新管の間へ中込材を注入した際の浮き上り防止策として、直接、新管にねじを切ったり、座板を取り付けたりし、そこにボルト等を取り付けて新管の浮き上りを防止している。しかし、コルゲートパイプなど薄鋼板製の新管は取り付け部の強度が不足するので、上記の従来技術をそのまま適用できない。さらに、新管の浮き上りと左右方向へのぶれの双方を防止する技術は開示されていない。 In the methods of Patent Documents 1 to 6, both existing pipes and new pipes are concrete pipes or rigid steel pipes. For this reason, as a measure to prevent lifting when injecting material between the existing pipe and the new pipe, the new pipe is directly screwed or seated, and bolts are attached to the new pipe to lift it. The ascending is prevented. However, a new pipe made of a thin steel plate such as a corrugated pipe lacks the strength of the mounting portion, so the above-described conventional technology cannot be applied as it is. Furthermore, there is no disclosure of a technique for preventing both the rising of the new pipe and the lateral movement in the left-right direction.

特許文献3、5には、新管を既設管の中へ挿入する方法として、車輪を使用して挿入する技術が開示されている。しかし、既設管がコルゲートパイプであるときは、コルゲートパイプの凹凸面を車輪で走行することは難しく、新管の挿入作業は難渋する。さらに、高価な車輪装置を中込材に埋め殺す不経済性も大きな負担になる。   Patent Documents 3 and 5 disclose a technique for inserting a new pipe using a wheel as a method for inserting the new pipe into an existing pipe. However, when the existing pipe is a corrugated pipe, it is difficult to travel on the uneven surface of the corrugated pipe with the wheels, and it is difficult to insert the new pipe. Furthermore, the uneconomical cost of burying expensive wheel devices in inserts becomes a major burden.

本発明の目的は、地中に埋設されて老朽化した既設管を、新管に薄鋼板製のパイプ又はコルゲートパイプを使用したパイプインパイプ工法で更生する方法、とりわけ既設管がコルゲートパイプであっても、その管壁の凹凸が障害とならない滑走具を使用した新管の挿入を行い、また、新管の浮き上がり防止と左右方向へのぶれ止めを適切に行い、技術的に容易で、作業性と経済性及び施工精度に優れた更生方法を提供することである。 The object of the present invention is to rehabilitate an existing pipe buried in the ground by using a pipe-in-pipe method using a thin steel pipe or a corrugated pipe as a new pipe , in particular, the existing pipe is a corrugated pipe. However, it is technically easy to insert a new pipe using a sliding tool that does not obstruct the unevenness of the pipe wall, and to prevent the new pipe from floating and to prevent lateral shaking. It is to provide a rehabilitation method excellent in performance, economy and construction accuracy.

本発明の次の目的は、新管の材質、構造、大きさについて、薄鋼製のコルゲートパイプ又は合成樹脂製パイプの如何を問うものでないが、特にコルゲートパイプのように管軸方向の剛性が小さく、また、ネジ孔を加工するには管壁が薄すぎる新管を使用する場合に好適な更生方法を提供することである。 It is another object of the present invention, the material of the new pipe, structure and size, but not matter whether the whether the corrugated pipe or a synthetic resin pipe made of thin steel plate, the rigidity of the axial direction of the tube as in particular corrugated pipes The present invention is to provide a rehabilitation method suitable for the case of using a new pipe that is small and has a pipe wall that is too thin for machining a screw hole.

上記従来技術の課題を解決するための手段として、請求項1記載の発明に係る既設管の更生方法は
地中に埋設された既設管2の中へ新管3を挿入し、既設管2と新管3の間へ中込材20を充填して固定する更生方法において、
新管3としてコルゲートパイプを使用し、同コルゲートパイプの中心を通る水平線より上方の位置に、中込材の充填による浮き上がりを防止する浮き上がり防止具5を、コルゲートパイプの管壁に沿って管軸方向に取り付け固定した補強材7に支持力をとって新管の内側から外向きに設置し、この浮き上がり防止具5で既設管2に反力をとりコルゲートパイプ3の浮き上がり限度位置を設定すること、
同コルゲートパイプ3において前記浮き上り防止具5よりも下方の位置に、中込材の充填による左右方向へのぶれを防ぐぶれ止め具6を新管3の内側から外向きに設置し、このぶれ止め具6で既設管2に反力をとりコルゲートパイプ3の左右方向への位置決めを行うこと、
しかる後に、既設管2とその中へ挿入したコルゲートパイプ3との隙間へ中込材20を充填してコルゲートパイプ3を固定することを特徴とする。
As a means for solving the problems of the prior art, the rehabilitation method for an existing pipe according to the invention of claim 1 is :
In the rehabilitation method of inserting the new pipe 3 into the existing pipe 2 buried in the ground and filling and fixing the interstitial material 20 between the existing pipe 2 and the new pipe 3,
A corrugated pipe is used as the new pipe 3, and a lifting prevention tool 5 for preventing lifting due to filling of the insert material is provided at a position above the horizontal line passing through the center of the corrugated pipe along the tube wall of the corrugated pipe. The supporting member 7 is attached and fixed to the reinforcing member 7 and installed outward from the inside of the new pipe, and the anti-lifting tool 5 counteracts the existing pipe 2 to set the lifting limit position of the corrugated pipe 3. ,
A position below the float upstream preventer 5 at the same corrugated pipe 3, placed outward blur stop 6 to prevent the lateral vibration in the lateral direction due to the filling of Nakagomi material from the inside of the new pipe 3, this blurring Positioning the corrugated pipe 3 in the left-right direction by applying a reaction force to the existing pipe 2 with the stopper 6;
Thereafter, the corrugated pipe 3 is fixed by filling the gap 20 between the existing pipe 2 and the corrugated pipe 3 inserted into the existing pipe 2 with the filling material 20.

請求項に記載した発明は、請求項1に記載した既設管の更生方法において、
新管としてのコルゲートパイプ3は、その外面に既設管2の内面を滑る滑走具4を取り付けて既設管2の中へ挿入することを特徴とする。
The invention described in claim 2 is the rehabilitation method of the existing pipe described in claim 1 ,
The corrugated pipe 3 as a new pipe is characterized in that a sliding tool 4 that slides on the inner surface of the existing pipe 2 is attached to the outer surface of the new pipe and inserted into the existing pipe 2.

請求項に記載した発明は、請求項1に記載した既設管の更生方法において、
既設管2の底部にレール15を敷設し、新管としてのコルゲートパイプ3は前記レール15上を滑走させて既設管2の中へ挿入することを特徴とする。
The invention described in claim 3 is the rehabilitation method of the existing pipe described in claim 1 ,
A rail 15 is laid on the bottom of the existing pipe 2, and the corrugated pipe 3 as a new pipe slides on the rail 15 and is inserted into the existing pipe 2.

請求項に記載した発明は、請求項に記載した既設管の更生方法において、
レール16は、2本のパイプ材160をほぼ平行に並べ、これを直角方向に配置した繋ぎ材161で連結した構成であることを特徴とする。
The invention described in claim 4 is the rehabilitation method of the existing pipe described in claim 3 ,
The rail 16 is characterized in that two pipe members 160 are arranged substantially in parallel and are connected by a connecting member 161 arranged in a perpendicular direction.

請求項に記載した発明は、請求項に記載した既設管の更生方法において、
レール17は、2本のアングル170をほぼ平行に配置し、これを直角方向に配置した繋ぎ材171で連結した構成であることを特徴とする。
The invention described in claim 5 is the rehabilitation method of the existing pipe described in claim 3 ,
The rail 17 has a configuration in which two angles 170 are arranged substantially in parallel and are connected by a connecting member 171 arranged in a right angle direction.

請求項に記載した発明は、請求項3〜5のいずれか一に記載した既設管の更生方法において、
新管としてのコルゲートパイプ3は、その底部外面の長手方向に、前記レール16又は17を構成する2本のパイプ材160又は2本のアングル170の外側又は内側に位置する滑走ガイド用の丸棒18と、前記丸棒18の内側又は外側に配置された防護用板材19を備えていることを特徴とする。
The invention described in claim 6 is the method of rehabilitating the existing pipe according to any one of claims 3 to 5,
Corrugated pipe 3 as a new tube, in the longitudinal direction of the outer bottom surface, round bars for sliding guide located outside or inside of the rail 16 or 17 of the two constituting the pipe material 160 or two angles 170 18 and a protective plate 19 disposed inside or outside the round bar 18.

請求項に記載した発明は、請求項1〜6のいずれか一に記載した既設管の更生方法において、既設管2がコルゲートパイプであることを特徴とする。 The invention described in claim 7 is the rehabilitation process of the existing pipe as claimed in any one of claims 1-6, wherein the existing pipe 2 is corrugated pipe.

請求項に記載した発明は、請求項1に記載した既設管の更生方法において、
浮き上がり防止具5及びぶれ止め具6は、新管であるコルゲートパイプ3の内側面の指定位置に、内面側にナット9を固着した補強材7をボルト止め10取り付けて固定し、前記補強材7固着した前記ナット9へ、外端を押さえ板50のナット51へネジ止めしたボルト5aを内向きにねじ込んで支持力をとり、同ボルト5aの内端に袋ナット12をネジ止めした構成であり、
前記袋ナット12を通じて前記ボルト5aを新管3の内側から回転し、既設管2の内面に前記押さえ板50を押し当てて反力をとり新管3の浮き上がり限度位置を設定し、且つ同新管3の左右方向への位置決めを行うこと、
込材20を充填しそれが所定の固化状態になった時点で前記袋ナット12を通じて前記ボルト5aを新管3の内側から回転して押さえ板50のナット51及び補強材7に固着されたナット9から新管3内へ抜き外し、その後前記ボルト止め10を緩めて補強材7を撤去することを特徴とする。
The invention described in claim 8 is the rehabilitation method of the existing pipe described in claim 1 ,
Preventer 5 and shake stop 6 floating is to specify the position of the inner surface of the corrugated pipe 3, a new tube, attach the reinforcing member 7 which is fixed to the nut 9 with bolts 10 and fixed to the inner surface side, wherein A bolt 5a having an outer end screwed to the nut 51 of the holding plate 50 is screwed inward to the nut 9 fixed to the reinforcing member 7 to take a supporting force, and a cap nut 12 is screwed to the inner end of the bolt 5a. Configuration
The bolt 5a is rotated from the inside of the new pipe 3 through the cap nut 12, the pressing plate 50 is pressed against the inner surface of the existing pipe 2, the reaction force is taken to set the lifting limit position of the new pipe 3, and the new Positioning the tube 3 in the left-right direction;
Filling the middle write member 20 which is secured to the nut 51 and the reinforcing member 7 of the bolt 5a presser rotates from the inside of the new pipe 3 plate 50 through the cap nut 12 when it reaches a predetermined solidification state The nut 9 is pulled out into the new pipe 3, and then the bolting 10 is loosened to remove the reinforcing member 7.

請求項に記載した発明は、請求項1又は8に記載した既設管の更生方法において、
浮き上がり防止具5を設置するための補強材7は、新管であるコルゲートパイプ3の管軸方向に複数本を一連に配置し、隣接する補強材相互間の突き合わせ端部は新管であるコルゲートパイプを屈曲可能に連結せず、又は緩く連結して取り付けられていることを特徴とする。
The invention described in claim 9 is the rehabilitation method of the existing pipe described in claim 1 or 8 ,
The reinforcing material 7 for installing the anti-lifting device 5 is a series of a plurality of corrugated pipes 3 that are new pipes arranged in the tube axis direction, and the butted ends between adjacent reinforcing materials are corrugated new pipes. It is characterized in that the pipes are attached so as not to be bent or loosely connected .

請求項10に記載した発明は、請求項1又は8記載した既設管の更生方法において、
新管であるコルゲートパイプ3の横ぶれを防ぐぶれ止め具6の設置位置は、新管3の中心を通る水平線上の位置から浮き上がり防止具5を設置した位置までの間であることを特徴とする。
The invention described in claim 10 is the rehabilitation method for an existing pipe described in claim 1 or 8 ,
The installation position of the anti-vibration tool 6 that prevents the lateral movement of the corrugated pipe 3, which is a new pipe, is between the position on the horizontal line passing through the center of the new pipe 3 and the position where the anti-lifting tool 5 is installed. To do.

請求項1〜10に記載した発明に係る既設管の更生方法は、地中に埋設されて老朽化し又は破損した既設管2を、主には新管3にコルゲートパイプを使用したパイプインパイプ工法で更生する方法であり、新管3の浮き上がりは浮き上がり防止具5で限度位置を設定し、左右方向への横ぶれはぶれ止め具6により適切に行うので、技術的に容易で施工精度が高い上に、作業性と経済性及び施工品質に優れている。
とりわけ既設管2がコルゲートパイプであっても、その管壁の凹凸が障害とならない滑走具4を使用した方法で新管3の挿入を行うので、作業性と経済性に優れる。
The method for rehabilitating an existing pipe according to the inventions described in claims 1 to 10 is a pipe-in-pipe method in which a corrugated pipe is mainly used as a new pipe 3 for an existing pipe 2 that is buried in the ground and has deteriorated or damaged. This is a method of rehabilitation, and the limit position is set by the lifting prevention tool 5 and the lateral movement in the left and right direction is appropriately performed by the shaking prevention tool 6, so that it is technically easy and the construction accuracy is high. In addition, it is excellent in workability, economy, and construction quality.
In particular, even if the existing pipe 2 is a corrugated pipe, the new pipe 3 is inserted by a method using the sliding tool 4 that does not obstruct the unevenness of the pipe wall, so that the workability and economy are excellent.

本発明の更生方法はまた、新管3の材質、構造、大きさについて、コルゲートパイプに限らず、鋼管、或いは合成樹脂管の如何を問わず、同様に実施できる。特にコルゲートパイプのように管軸方向の剛性が小さく、また、ネジ孔を加工するには管壁が薄すぎる新管を使用する場合に格別好適な更生方法である。
しかも請求項に記載した発明によれば、中込材20が所定の固化状態になった時点で浮き上がり防止具5及びぶれ止め具6をそれぞれ、新管3の内側からの作業として解体撤去することができる構成なので、資材の有効利用・活用が図れる上に、最終的に新管3の管内は突出物が殆どない状態にできるから、事後の点検等の目的で作業員が新管内を通行する場合に歩き易く安全性が高い。のみならず流水に含まれる流木やゴミ類が引っかかって流路を遮る等の不都合も起こり難い。
The rehabilitation method of the present invention can also be carried out in the same manner regardless of the material, structure, and size of the new pipe 3 regardless of whether it is a corrugated pipe, a steel pipe, or a synthetic resin pipe. In particular, this is a rehabilitation method that is particularly suitable when using a new pipe having a small axial rigidity, such as a corrugated pipe, and having a pipe wall that is too thin for machining a screw hole.
In addition, according to the invention described in claim 8 , the lifting prevention tool 5 and the anti-shock tool 6 are respectively dismantled and removed as work from the inside of the new pipe 3 when the interstitial material 20 is in a predetermined solidified state. The structure allows the effective use and utilization of materials, and finally the pipe of the new pipe 3 can be made almost free of protrusions, so that workers pass through the new pipe for the purpose of subsequent inspections, etc. It is easy to walk and safe. In addition, it is difficult for inconveniences such as blocking drifting trees and garbage contained in running water to block the flow path.

コルゲートパイプによる新管3の中心を通る水平線より上方の位置に、中込材20の充填による浮き上がりを防止する浮き上がり防止具5を設置し、この浮き上がり防止具5で既設管2に反力をとって新管3の浮き上がり限度位置を新管3内から設定する。
同新管3において前記浮き上り防止具5よりも下方の位置に、中込材20の充填による左右方向への横ぶれを防ぐぶれ止め具6を設置し、このぶれ止め具6で既設管2に反力をとり新管3の左右方向への位置決めを行う。しかる後に、既設管2とその中へ挿入した新管3との隙間へ中込材20を充填して新管を固定する。
新管3を既設管2の中へ挿入するに際しては、新管3の底部外面に滑走具4を取り付けて、又は既設管2の底部にレール15、16、17を敷設して、既設管2の底部の状況、或いは新管3の外面構造の如何に左右されないスムーズな引き込み、挿入を行う。
A lift prevention tool 5 is installed at a position above the horizontal line passing through the center of the new pipe 3 by the corrugated pipe to prevent the floating due to the filling of the filling material 20. The lift prevention tool 5 takes a reaction force against the existing pipe 2. The rising limit position of the new tube 3 is set from within the new tube 3.
In the new pipe 3, an anti-vibration device 6 is installed at a position below the anti-lifting device 5 to prevent lateral shaking due to the filling of the insert material 20, and the anti-vibration device 6 attaches to the existing pipe 2. The reaction force is taken to position the new tube 3 in the left-right direction. After that, the gap between the existing pipe 2 and the new pipe 3 inserted into the existing pipe 2 is filled with the insert material 20 to fix the new pipe.
When the new pipe 3 is inserted into the existing pipe 2, the sliding tool 4 is attached to the bottom outer surface of the new pipe 3, or rails 15, 16, 17 are laid on the bottom of the existing pipe 2, and the existing pipe 2 Smooth pull-in and insertion are performed regardless of the condition of the bottom of the tube or the outer surface structure of the new tube 3.

図1は、一例として道路1を構築する盛土の下部を貫通する排水管の如き既設管2が地中に埋設されており、これが老朽化し又は破損した場合に、同既設管2の中へコルゲートパイプによる新管3を挿入し、所謂パイプインパイプ工法で更生する方法の概念図を示している。図1はまた、新管3であるコルゲートパイプは、セグメントの継ぎ目を互い違いに配置する形に組み立てたものであることを示す。そして、図1の右方の既設管2の外部に、コルゲートパイプの組み立て、及び接続の作業エリアが設けられていることを示している。 FIG. 1 shows, as an example, when an existing pipe 2 such as a drain pipe penetrating the lower part of the embankment that constructs the road 1 is buried in the ground, and this corrugates into the existing pipe 2 when it is aged or damaged. The conceptual diagram of the method of inserting the new pipe 3 by a pipe and renovating by what is called a pipe in pipe construction method is shown. FIG. 1 also shows that the corrugated pipe, which is a new pipe 3, is assembled in a configuration in which the seams of the segments are arranged alternately. And it has shown that the work area of the assembly and connection of a corrugated pipe is provided in the exterior of the existing pipe 2 of the right side of FIG.

上記の新管3を既設管2の中へ挿入する方法として、図2と図3は、新管3の外面下部に、管軸方向に長くて既設管2の内面を円滑に滑るスキー板又はスケートエッジのような形態の滑走具4を取り付けて既設管2の中へ順次挿入する方法(請求項3に記載した発明)の実施例を概念的に示している。同新管3の挿入は、前方から引っ張る引き込み方式、又は後方から押す押し込み方式、又は両者の併用方式などが施工条件に応じて選択し実施される。その具体的手法については後述する。 As a method for inserting the above-mentioned new pipe 3 into the existing pipe 2, FIG. 2 and FIG. 3 show a ski plate that slides smoothly on the inner surface of the existing pipe 2 that is long in the tube axis direction at the lower outer surface of the new pipe 3. An embodiment of a method (invention described in claim 3) of attaching the sliding tool 4 in the form of a skate edge and sequentially inserting it into the existing pipe 2 is shown conceptually. The new pipe 3 is inserted by selecting a pull-in method for pulling from the front, a push-in method for pushing from the rear, or a combination method of both in accordance with construction conditions. The specific method will be described later.

前記滑走具4の具体的構造、形態を図4に示した。図4の滑走具4は、アングル材を加工して組み立てたもので、両端に上向きに湾曲する反り加工を施した滑り板4a上の前後に低い支柱4b、4bを立て、前記支柱4bでほぼ水平に両端支持された取付板4cにボルト孔4dを設けてあり、新管3の所定位置へボルト止めの手段で取り付ける構成である。図3の場合、前記構成の滑走具4が管軸方向に平行な配置で左右に2個取り付けられた構成を示す。2個の滑走具4、4の間隔は、新管3の支持及び挿入作業の安定性に適切な大きさとされる。図3で明らかなように、滑走具4の背の高さは、既設管2の内径に対する新管3の外径との差寸の範囲で、同新管3の芯合わせに支障ない高さとされる。 The specific structure and form of the sliding tool 4 are shown in FIG. The sliding tool 4 shown in FIG. 4 is an assembly made by processing an angle material. Low struts 4b and 4b are provided on the front and rear of a sliding plate 4a that is warped upward at both ends. A bolt hole 4d is provided in the mounting plate 4c supported horizontally at both ends, and is attached to a predetermined position of the new pipe 3 by means of bolting. In the case of FIG. 3, a configuration is shown in which two sliding tools 4 having the above-described configuration are attached to the left and right in an arrangement parallel to the tube axis direction. The distance between the two sliding tools 4 and 4 is set to a size appropriate for the support of the new tube 3 and the stability of the insertion operation. As apparent from FIG. 3, the height of the sliding tool 4 is a height that does not interfere with the alignment of the new pipe 3 within the range of the difference between the inner diameter of the existing pipe 2 and the outer diameter of the new pipe 3. Is done.

上記の滑走具4を使用した新管3の挿入方法によれば、新管2であるコルゲートパイプにこすれ傷が付かないし、既設管2の内面がコルゲートパイプ又はこれと同様に凹凸の激しい悪路状態であっても、その凹凸にさして邪魔されることなく軽快に円滑に滑走して挿入作業を能率良く進めることができる(請求項に記載した発明)。 According to the insertion method of the new pipe 3 using the above-mentioned sliding tool 4, the corrugated pipe which is the new pipe 2 is not rubbed and the inner surface of the existing pipe 2 has a corrugated pipe or an uneven surface with severe irregularities. Even in the road state, the insertion operation can be efficiently performed by sliding smoothly and smoothly without being disturbed by the unevenness (the invention described in claim 7 ).

図5と図6に示した滑走具4’は、前後に低い支柱4b、4bを立てた滑り板4aを2本平行に配置し、左右の滑り板4aの支柱4b、4b同士を、新管3の外径と近似な円弧状に形成した2本の取付板4e、4eで左右方向に接合した構成である。各取付板4eにボルト孔4dを設けてあり、新管3の所定位置へボルト止めの手段で取り付けられる。要するに、この滑走具4’の場合は、2本の滑り板4a、4aを合一に一定の関係に組んで取り付けることができ、図4の滑走具4よりも取付け作業の手数と面倒さが少ない。この滑走具4’の滑り板4a、4aの間隔、及び背丈の高さは、上記図3、図4の滑走具4と同様の考えに基づいて作られる。 The sliding tool 4 ' shown in FIG. 5 and FIG. 6 has two sliding plates 4a with lower supporting columns 4b and 4b standing in front and rear, arranged in parallel, and the supporting columns 4b and 4b of the left and right sliding plates 4a are connected to each other by a new tube. In this configuration, two mounting plates 4e and 4e formed in an arc shape approximate to the outer diameter of 3 are joined in the left-right direction. Each mounting plate 4e is provided with a bolt hole 4d, and is attached to a predetermined position of the new pipe 3 by means of bolting. In short, in the case of this sliding tool 4 ′, the two sliding plates 4a, 4a can be assembled and attached together in a fixed relationship, and the mounting work and troublesomeness are less than the sliding tool 4 of FIG. Few. The distance between the sliding plates 4a and 4a of the sliding tool 4 'and the height of the height are made based on the same idea as the sliding tool 4 of FIGS.

図13に示したように、既設管2の底部にH形鋼等によるレール15、15を敷設し、新管3は前記レール15、15の上を滑走させて既設管2の中へ挿入する方法も同様に実施可能である(請求項に記載した発明)。このレール15による挿入方法は、上記滑走具4又は4’による挿入方法の場合に、滑走具4又は4’を現地で取り付ける手数が省けるし、また、滑走具4又は4’を取付けるボルト孔を新管3に孔あけ加工する面倒さを解消できる。 As shown in FIG. 13, rails 15, 15 made of H-shaped steel or the like are laid at the bottom of the existing pipe 2, and the new pipe 3 slides on the rails 15, 15 and is inserted into the existing pipe 2. The method can be carried out similarly (the invention described in claim 3 ). In the insertion method using the rail 15, in the case of the insertion method using the sliding tool 4 or 4 ', the labor for mounting the sliding tool 4 or 4' can be omitted, and a bolt hole for mounting the sliding tool 4 or 4 'can be omitted. The troublesome work of drilling the new tube 3 can be eliminated.

新管3をレールの上を滑走させて既設管2の中へ挿入する方法の実施にあたり、既設管2が地盤沈下や不陸などにより局部的な曲がり等を生じている場合には、上記H形鋼等によるレール15に比して可撓性に富み、せいが低いレールの使用が望まれる。そうした観点の実施例として、図14と図15に示したレール16は、具体的には建築の現場で所謂単管と通称され多用されている2本のパイプ材160、160を例えば500mm程度の間隔をあけてほぼ平行に並べ、これを直角方向に配置した帯鋼板(厚さ3mm、幅32mm程度)による繋ぎ材161で梯子状に連結した構成である。単管は長さが4m程度、外径が50mm、管厚3mm程度で軽量であるから、レール16は人手による取り扱いに便利である。繋ぎ材161はレール16の長手方向に例えば1mピッチ程度に配置されている。前記構成のレール16は、新管3の挿入時に新管重量等の負荷を受けると、2本のパイプ材160、160が既設管2の底壁面に沿って長手方向に撓み馴染む状態となる。そのため既設管2が地盤沈下や不陸などにより局部的な曲がり等を生じている場合には、新管3を、前記曲がりに沿って狭く限られた隙間を有効活用して誘導でき、引き込む挿入作業を円滑に進めることができ至便である(請求項に記載した発明)。 When the existing pipe 2 is bent locally due to land subsidence or unevenness in the method of inserting the new pipe 3 on the rail and inserting it into the existing pipe 2, the above-mentioned H It is desirable to use a rail that is rich in flexibility and low in resistance as compared with the rail 15 made of shape steel or the like. As an embodiment of such a point of view, the rail 16 shown in FIGS. 14 and 15 is specifically made up of two pipe members 160, 160 commonly referred to as so-called single pipes at the construction site, for example of about 500 mm. It is the structure which connected in parallel with the ladder 161 with the connecting material 161 by the strip steel plate (thickness 3mm, about width 32mm) arrange | positioned substantially parallelly at intervals and arrange | positioned this at right angles. Since the single tube is light with a length of about 4 m, an outer diameter of 50 mm, and a tube thickness of about 3 mm, the rail 16 is convenient for manual handling. The connecting material 161 is arranged in the longitudinal direction of the rail 16 at a pitch of about 1 m, for example. When the rail 16 configured as described above receives a load such as the weight of the new pipe when the new pipe 3 is inserted, the two pipe members 160 and 160 are bent along the bottom wall surface of the existing pipe 2 in the longitudinal direction and become compliant. Therefore, when the existing pipe 2 is locally bent due to land subsidence or unevenness, the new pipe 3 can be guided by effectively utilizing the narrow gap limited along the bend and inserted. The work can be carried out smoothly and is convenient (the invention described in claim 4 ).

図16と図17に示したレール17も、実施例4と同様な考えに基づいて構成されている。即ち、一辺の長さが30mm、厚さ3mm程度の2本のアングル170、170をほぼ平行に配置すると共に、それぞれの一辺を垂直姿勢に立てて並べ、これらをやはり直角方向に配置した帯鋼板の如き繋ぎ材171で梯子状に連結した構成である(請求項に記載した発明)。もっとも、2本のアングル170、170は、繋ぎ材171の平面に対して、その直角2辺を下向きに伏せた山形状の配置で連結した構成で実施しても、同様な作用効果が得られる。 The rails 17 shown in FIGS. 16 and 17 are also configured based on the same idea as in the fourth embodiment. That is, two steel plates 170 each having a side length of 30 mm and a thickness of about 3 mm are arranged substantially in parallel, and each side is arranged in a vertical posture, and these are also arranged in a perpendicular direction. This is a configuration in which the connecting members 171 are connected in a ladder shape (the invention described in claim 5 ). However, even if the two angles 170 and 170 are connected to each other in a mountain-shaped arrangement in which the two perpendicular sides are faced downward with respect to the plane of the connecting member 171, the same effect can be obtained. .

本実施例の場合には、図18に拡大図を示したように、新管3の底部外面の長手方向に、上記レール17を構成する2本のアングル170の垂直な2辺の両外側に位置する滑走ガイド用の丸棒18と、同丸棒18の内側に配置された耐摩耗性の防護用板材19を備えていることが好ましい(請求項に記載した発明)。丸棒18は外径が19mm程度の鋼棒、耐摩耗性の防護用板材19は厚さが3mm前後の薄鋼板である。前記の構成によれば、左右2本の滑走ガイド用の丸棒18、18は、それぞれの内側に位置するアングル170の垂直辺に規制を受けつつ滑走を案内される。そのため当該新管3の回転を防ぎ、ひいては後述する浮き上がり防止具5及び左右方向へのぶれ止め具6の位置が挿入作業中に不用意に変動する不都合を未然にできる。そして、前記耐摩耗性の防護用板材19は、アングル170の垂直辺が直接新管3の外面に当たって擦れ傷を付ける不都合を防止する。図19に新管3における丸棒18と防護用板材19の配置例を示した。
上記図15のパイプ材160を利用したレール16を使用する実施例の場合にも、新管3の底部外面に上記の滑走ガイド用丸棒18と防護用板材19を設けると、同様に効果的である。なお、滑走ガイド用の丸棒18をパイプ材160又はアングル170の内側に配置し、逆に耐摩耗性の防護用板材19を外側に配置した構成でも同様な作用効果が奏される。
In the case of this embodiment, as shown in an enlarged view in FIG. 18, in the longitudinal direction of the bottom outer surface of the new pipe 3, on both outer sides of two perpendicular sides of the two angles 170 constituting the rail 17. It is preferable to include a round bar 18 for sliding guide and a wear-resistant protective plate 19 disposed inside the round bar 18 (the invention according to claim 6 ). The round bar 18 is a steel bar having an outer diameter of about 19 mm, and the wear-resistant protective plate 19 is a thin steel plate having a thickness of about 3 mm. According to the above-described configuration, the two left and right sliding guide rods 18 and 18 are guided to slide while being restricted by the vertical sides of the angle 170 located inside thereof. Therefore, the rotation of the new pipe 3 is prevented, and as a result, the inconvenience that the positions of the anti-lifting tool 5 and the anti-vibration tool 6 in the left-right direction are inadvertently changed during the insertion operation can be obviated. The wear-resistant protective plate 19 prevents inconvenience that the vertical side of the angle 170 directly hits the outer surface of the new tube 3 and is scratched. FIG. 19 shows an arrangement example of the round bar 18 and the protective plate 19 in the new pipe 3.
Also in the case of the embodiment using the rail 16 using the pipe material 160 of FIG. 15 described above, if the sliding guide round bar 18 and the protective plate 19 are provided on the outer surface of the bottom of the new pipe 3, it is also effective. It is. It should be noted that the same effect can be obtained with a configuration in which the sliding guide round bar 18 is disposed on the inside of the pipe member 160 or the angle 170 and the wear-resistant protective plate 19 is disposed on the outside.

次に、上記いずれかの方法で既設管2の中へ挿入される新管3には、その挿入作業に先立つ上記管組み立て工程の段階で、要所要所に、浮き上がり防止具5と左右方向へのぶれ止め具6が下記の構成と配置で設置される。
図7と図8は、浮き上がり防止具5の設置構造と使用状態を示している。コルゲートパイプを使用した新管3の上部に、中込材の充填による浮き上がりを防止する浮き上がり防止具5が、同新管3の管内壁面に沿って管軸方向に取り付けた補強材7を介して設置されている。なお、図8は既設管2もコルゲートパイプであることを示している(請求項に記載した発明)。
Next, the new pipe 3 to be inserted into the existing pipe 2 by any one of the above-described methods is provided in a necessary position at the important point at the stage of the pipe assembling process prior to the insertion work. The anti-blurring tool 6 is installed with the following configuration and arrangement.
7 and 8 show the installation structure and use state of the lifting preventer 5. On the upper part of the new pipe 3 using the corrugated pipe, a lifting prevention tool 5 for preventing the lifting due to filling of the interstitial material is installed via a reinforcing material 7 attached in the pipe axial direction along the inner wall surface of the new pipe 3. Has been. FIG. 8 shows that the existing pipe 2 is also a corrugated pipe (the invention described in claim 7 ).

図7、8に示す実施例の場合、補強材7にはアングル材が使用されている。この補強材7は、図9A、Bに示したように、1本の単位長さが1.8m程度で、その中央部位に1個の通孔が設けられ、該通孔と中心が一致するナット9が1個、溶接等の手段で固定されている。そして、前記ナット9の近傍の左右両側の位置に対称的な配置で2個ずつ計4個のボルト孔8が設けられ、更に両端部位にも1個ずつ、合計6個のボルト孔8が設けられている。更に、補強材7の両端部には直角に接合板7aが溶接で固定され、該接合板7aの中央部に1個のボルト孔7bが設けられている。
図8で明らかなように、補強材7は、前記の各ボルト孔8の位置をボルト10とナット11で新管3へ強固に取り付けられる。そして、前記ナット9に、浮き上がり防止具5のネジ軸5aが内向きにねじ込まれ、同浮き上がり防止具5を既設管2の内面に押し当てて反力をとることにより、新管(コルゲートパイプ)3の浮き上がり限度位置が設定される。前記の位置設定において浮き上がり防止具5から新管3へ負荷される荷重は、補強材7から複数箇所の各ボルト止め位置(ボルト10、ナット11の位置)に分散して新管(コルゲートパイプ)3へ伝達されるので、コルゲートパイプは管軸方向の剛性が低いという性質を補強材7により補完される。補強材7を用いず直接コルゲートパイプに浮き上がり防止具5を取り付けると、コルゲートパイプは薄板構造のため、取り付け部が変形して不都合である。
In the case of the embodiment shown in FIGS. 7 and 8, an angle material is used for the reinforcing material 7. The reinforcing member 7, as shown in FIG. 9 A, B, in the order of a unit length of one is 1.8 m, the one through hole in the central portion is provided, vent hole and the center matches One nut 9 is fixed by means such as welding. A total of four bolt holes 8 are provided, two in a symmetrical arrangement at the left and right sides in the vicinity of the nut 9, and a total of six bolt holes 8 are also provided at both ends. It has been. Further, the joining plate 7a is fixed to both ends of the reinforcing member 7 at a right angle by welding, and one bolt hole 7b is provided in the central portion of the joining plate 7a.
As is apparent from FIG. 8, the reinforcing member 7 is firmly attached to the new pipe 3 with the bolts 10 and the nuts 11 at the positions of the respective bolt holes 8. Then, the screw shaft 5a of the lifting prevention tool 5 is screwed inwardly into the nut 9, and the lifting prevention tool 5 is pressed against the inner surface of the existing pipe 2 to take a reaction force, whereby a new pipe (corrugated pipe). A lift limit position of 3 is set. In the above-described position setting, the load applied to the new pipe 3 from the lifting prevention tool 5 is dispersed from the reinforcing material 7 to each of the bolt fastening positions (positions of the bolts 10 and nuts 11) at a plurality of locations, and the new pipe (corrugated pipe). 3, the corrugated pipe is supplemented by the reinforcing material 7 with the property that the rigidity in the tube axis direction is low. If the anti-lifting device 5 is attached directly to the corrugated pipe without using the reinforcing material 7, the corrugated pipe is inconvenient because the attachment portion is deformed because of the thin plate structure.

上記の補強材7は、新管3の管軸方向に複数本が長く一連に取り付けられ、浮き上がり防止具5の設置用に供される。但し、既設管2と新管3の管軸方向の芯合わせの自由度を確保するため、一連に配置される複数の補強材7、7相互間の突き合わせ端部は、連結しない場合もあるが、好ましくは端部の接合板7a同士を突き合わせて、そのボルト孔7bへ通したボルトで新管3の屈曲が可能な程度に連結した構成が好適に実施される(請求項に記載した発明)。かくすると、補強材7が分割された箇所では新管3の屈曲変形の自由度が得られるからである。 A plurality of the reinforcing members 7 are attached in series in the tube axis direction of the new tube 3 so as to be used for the installation of the lifting prevention tool 5. However, in order to ensure the degree of freedom of alignment of the existing pipe 2 and the new pipe 3 in the tube axis direction, the butted ends between the plurality of reinforcing members 7 and 7 arranged in series may not be connected. Preferably, a configuration in which the joining plates 7a at the end portions are brought into contact with each other and connected to such an extent that the new tube 3 can be bent with the bolts passed through the bolt holes 7b is suitably implemented (the invention according to claim 9 ). ). This is because a degree of freedom of bending deformation of the new pipe 3 can be obtained at the location where the reinforcing material 7 is divided.

浮き上がり防止具5による上記新管3の浮き上がり限度位置の設定作業を新管3の内側から行うために、補強材7の上記ナット9へ内向きにねじ込んだ浮き上がり防止具5のネジ軸5aの内端に、図7、図8に示すように、袋ナット12が強固にねじ込まれている。該袋ナット12を介してネジ軸5aを回転することが可能であり、新管3の芯出し調整の作業を行える。   In order to perform the setting operation of the lifting limit position of the new pipe 3 by the lifting prevention tool 5 from the inside of the new pipe 3, the inside of the screw shaft 5a of the lifting prevention tool 5 screwed inwardly to the nut 9 of the reinforcing material 7 As shown in FIGS. 7 and 8, the cap nut 12 is firmly screwed into the end. The screw shaft 5a can be rotated via the cap nut 12, and the centering adjustment of the new pipe 3 can be performed.

なお、浮き上がり防止具5による新管3の浮き上がり限度位置の設定を容易にし、且つ実効性をあらしめるため、補強材7と浮き上がり防止具5の設置位置は、新管3の中心を通る水平線より上方の位置であることを要する。図7に示すように、新管3の縦断面において、同管の中心を通る垂直線13の両側に30度づつ傾いた左右2箇所の位置に設置するのが好ましい(請求項1に記載した発明)。もっとも、前記30度を若干超える大きな角度、又は30度よりも若干小さい角度に設置しても同様な作用効果を享受できる。   In order to facilitate the setting of the rising limit position of the new pipe 3 by the lifting prevention tool 5 and to demonstrate its effectiveness, the installation position of the reinforcing member 7 and the lifting prevention tool 5 is from a horizontal line passing through the center of the new pipe 3. The upper position is required. As shown in FIG. 7, in the longitudinal section of the new pipe 3, it is preferable to install it at two left and right positions inclined by 30 degrees on both sides of the vertical line 13 passing through the center of the new pipe. invention). However, even if it is installed at a large angle slightly exceeding 30 degrees or an angle slightly smaller than 30 degrees, the same effect can be obtained.

浮き上がり防止具5は、図11のような構成で実施することもできる。
本実施例は、ナット9を具備する補強材7が新管3の外側面部に取り付けられた構成を特徴とする。なお、補強材7はアングルの限りではなく、他の形態の形鋼や板材などを適宜利用して実施することができる。
The lifting prevention tool 5 can also be implemented with a configuration as shown in FIG.
The present embodiment is characterized in that the reinforcing member 7 having the nut 9 is attached to the outer surface portion of the new pipe 3. The reinforcing member 7 is not limited to an angle, and can be implemented by appropriately using other forms of shape steel or plate material.

次に、図12は、新管3(コルゲートパイプ)の両側部に、当該新管3が中込材の充填によって左右方向へ変位する所謂「ぶれ」を防ぐぶれ止め具6の構成と設置状況を示している。
このぶれ止め具6の構成は、例えば上記図7、8又は図11に示す浮き上がり防止具5と同様な構成で実施することが可能である。要するに、ぶれ止め具6は既設管2の内面に反力をとり、新管3(コルゲートパイプ)が中込材の充填圧力で左右方向へずり動かない程度に位置決めを行うものだからである。但し、ぶれ止め具6は、新管3が左右方向へ動かない程度に位置決めできれば良く、浮き上がり防止具5に比して負担する荷重は遙かに小さいので、例えば補強材7が無用であるなど、更に簡素で小型の構成で実施することが可能である。
Next, FIG. 12 shows the configuration and installation state of the anti-vibration tool 6 that prevents so-called “ lateral shake” in which the new pipe 3 is displaced in the left-right direction by filling the inner pipe material on both sides of the new pipe 3 (corrugated pipe). Is shown.
The configuration of the anti-vibration tool 6 can be implemented, for example, with the same configuration as the anti-lifting tool 5 shown in FIG. In short, the anti-vibration tool 6 takes a reaction force on the inner surface of the existing pipe 2 and positions the new pipe 3 (corrugated pipe) so that it does not move in the left-right direction due to the filling pressure of the insert material. However, the anti-vibration tool 6 only needs to be positioned to the extent that the new tube 3 does not move in the left-right direction, and the load borne by the anti-lifting tool 5 is much smaller than that of the anti-lifting tool 5. Further, it can be implemented with a simpler and smaller configuration.

なお、上記の浮き上がり防止具5及びぶれ止め具6は、新管3を既設管2の中の所定の埋設位置へ挿入するまでの間は、挿入作業の邪魔にならないように、例えば図7中に点線で図示したような位置へできるだけ引き込ませた状態としておく。そして、所定の埋設位置へ到達した段階で、前記袋ナット12を通じてネジ軸を回転する操作により、浮き上がり限度位置の設定、及び左右方向へのぶれ止め位置の設定又は調節を行う。
こうして既設管2に対する新管3の芯出しを行った後に、既設管2と、その中へ挿入した新管3との隙間へモルタル等の中込材(又は裏込め材とも言う。)20を密実に充填し、その硬化により新管3を固定する(図22、図23を参照)
Note that the above-described lifting prevention tool 5 and anti-shake tool 6 are, for example, as shown in FIG. 7 so as not to interfere with the insertion operation until the new pipe 3 is inserted into a predetermined embedding position in the existing pipe 2. In the state shown in FIG. Then, when reaching the predetermined embedding position, the lifting limit position is set and the anti-shake position in the left-right direction is set or adjusted by rotating the screw shaft through the cap nut 12.
After the new pipe 3 is centered with respect to the existing pipe 2 in this way, an interstitial material (also referred to as backfilling material) 20 such as mortar is densely placed in the gap between the existing pipe 2 and the new pipe 3 inserted therein. The new tube 3 is fixed by actually filling and hardening (see FIGS. 22 and 23) .

上記したように、ぶれ止め具6は、新管3が左右方向へ動かない程度に位置決め固定する働きのものであるから、その設置位置は、図12に示したように、新管3において、その中心を通る水平線14上の位置よりも上方であれば、図7に示す浮き上がり防止具5を設置した位置までの角度範囲のいずれでもよい(請求項10に記載した発明)。新管3の中心を通る水平線14よりも下方の位置に取付けた場合には、新管3の内側において、ぶれ止め具6の存在が、落ち葉やゴミが引っ掛かる原因となり易く、その結果、水の流れに抵抗が生じ、水が流れにくい埋設管となるからである。もっとも、下記する実施例のように新管3の内部に突起物を生じさせない構造で実施する場合、取付け位置は前記の限りではなく、水平線14より下方へ設置しても格別の支障はない。 As described above, the anti-vibration tool 6 has a function of positioning and fixing the new tube 3 so that the new tube 3 does not move in the left-right direction. Therefore, as shown in FIG. As long as it is above the position on the horizontal line 14 passing through the center, any angle range up to the position where the lifting prevention tool 5 shown in FIG. 7 is installed may be used (the invention according to claim 10 ). When installed at a position below the horizontal line 14 passing through the center of the new tube 3, the presence of the anti-blur 6 on the inside of the new tube 3 is likely to cause fallen leaves and dust to be caught. This is because resistance is generated in the flow and the buried pipe is difficult to flow. However, when implemented in a structure that does not produce protrusions inside the new tube 3 as in the following embodiment, the mounting position is not limited to the above, and there is no particular problem even if it is installed below the horizontal line 14.

次に、図20〜図22は、用済みとなった浮き上がり防止具5を、少なくとも新管3の内部に突出する構成要素は解体・撤去できる構成とした実施例を示している。その構成の大部分は、上記図7又は図11の実施例と類似している。Next, FIG. 20 to FIG. 22 show an embodiment in which the used lifting prevention tool 5 is configured such that at least the components protruding inside the new pipe 3 can be disassembled and removed. Most of the configuration is similar to the embodiment of FIG. 7 or FIG.
本実施例の浮き上がり防止具5は、新管3の内側面の指定位置、つまり上述した浮き上がり防止具5を設置するべき位置であって新管3の内側へ、内面側にナット9を例えば溶接で固着した補強材7を、図21のように、上述した各ボルト孔8へ通したボルト10とナット11によるボルト止めにて取り付ける。そして、補強材7に固着された前記ナット9には、先に押さえ板50のナット51へ外端をねじ込んで止めたボルト5aを内向きにねじ込み、新管3の内側へ突き出た同ボルト5aの内端に袋ナット12をネジ止めした構成とされている。従って、前記袋ナット12を通じて前記ボルト5aを新管3の内側から回転して外方へ移動させ、既設管2の内面へ前記押さえ板50を押し当てて反力をとり、新管3の浮き上がり限度位置を設定することができる。The lifting prevention tool 5 of the present embodiment is a designated position on the inner surface of the new pipe 3, that is, a position where the above-described lifting prevention tool 5 is to be installed, and a nut 9 is welded, for example, to the inner side of the new pipe 3 As shown in FIG. 21, the reinforcing material 7 fixed in step 1 is attached by bolting with bolts 10 and nuts 11 that are passed through the bolt holes 8 described above. Then, the nut 9 fixed to the reinforcing member 7 is screwed inward with a bolt 5a that has been screwed in the outer end into the nut 51 of the holding plate 50 inward, and the bolt 5a that protrudes to the inside of the new tube 3. It is set as the structure which fixed the cap nut 12 to the inner end of this. Accordingly, the bolt 5a is rotated from the inside of the new pipe 3 through the cap nut 12 and moved outward, the pressing plate 50 is pressed against the inner surface of the existing pipe 2 to take a reaction force, and the new pipe 3 is lifted. The limit position can be set.

その後、図22のように中込材20を充填し、それがたれ落ちしない程度の固さの固化状態(つまり、未だボルト5aを回転可能な状態)において、前記袋ナット12を通じて前記ボルト5aを新管の内側から逆回転して、先ずは押さえ板50のナット51から抜き外し、更に新管3の内方側へ移動させて補強材7に固着されたナット9からも新管3の内方へ抜き外す。次いで補強材7をボルト止めしているナット11を緩めて外すことにより補強材7を撤去すると、図22の状態になる。要するに、図20の構造から図22の構造へと変化し、少なくとも新管3の内面側に突き出ていたボルト5aや補強材7等は残らず撤去される。よって、事後に点検等の目的で新管3内を歩く人や移動する物が不用意に当たる危険な突起物がなくなる。しかも撤去した部品類は他の場所へ転用できる利便性と経済性が図れる(請求項に記載した発明)。
なお、図20〜図22に示す符号21は、中込材20の中に埋まるボルト5aをアンボンド状態に保護する発泡プラスチック等による筒状のセパレータである。但し、このセパレータ21は必ずしも必要ではない。
Thereafter, as shown in FIG. 22, the filling material 20 is filled, and the bolt 5a is renewed through the cap nut 12 in a solidified state (ie, the bolt 5a is still rotatable) so that it does not sag. Reversely rotate from the inside of the pipe, first remove it from the nut 51 of the holding plate 50, and then move it to the inside of the new pipe 3 and from the nut 9 fixed to the reinforcing material 7, the inside of the new pipe 3 Remove it. Next, when the reinforcing member 7 is removed by loosening and removing the nut 11 that is bolted to the reinforcing member 7, the state shown in FIG. 22 is obtained. In short, the structure shown in FIG. 20 is changed to the structure shown in FIG. 22, and at least the bolts 5 a and the reinforcing material 7 that protrude to the inner surface side of the new pipe 3 are removed. Therefore, there are no dangerous projections that are accidentally hit by people walking or moving objects in the new tube 3 for the purpose of inspection after the fact. Moreover, the removed parts can be diverted to other places for convenience and economy (the invention described in claim 8 ).
In addition, the code | symbol 21 shown in FIGS. 20-22 is the cylindrical separator by the foaming plastic etc. which protects the volt | bolt 5a embedded in the insert material 20 in an unbonded state. However, the separator 21 is not always necessary.

上記ぶれ止め具6についても、図23に示すように、上記図20〜図22に示した浮き上がり防止具5と同様な構成を採用し、用済みとなったぶれ止め具6の構成要素のうち、少なくとも新管3の内部に突出する部材を解体・撤去できる構成で実施される(請求項に記載した発明)。
但し、浮き上がり防止具5は、中込材20による浮力の作用を強く受け、これに対する強い抵抗力と位置決めの正確さが求められるため、上記したように新管3の長手方向におよそ1.8mに1個のピッチで多数設置される。しかし、ぶれ止め具6は、新管3の水平(横)方向への位置ズレを防止できれば足りるので、新管3の長手方向には一例として6mに1個程度のピッチで疎らに設置される。そのため補強材7は新管3とのボルト止めに必要最少限度の長さのものを使用することができる。内面側にナット9を溶接等で固着した補強材7は、新管3の内側面にボルト止め(図21のボルト10、ナット11を参照)にて取り付ける。この補強材7に固着された前記ナット9には、先に押さえ板60のナット61へ外端をねじ込んで止めたボルト6aを内向きにねじ込み、同ボルト6aの内端に袋ナット12をネジ止めした構成とされる。
As shown in FIG. 23, the anti-vibration tool 6 employs the same configuration as the anti-lifting tool 5 shown in FIGS. At least the member projecting into the inside of the new pipe 3 can be disassembled and removed (the invention according to claim 8 ).
However, the anti-lifting device 5 is strongly influenced by the buoyancy caused by the interstitial material 20, and is required to have a strong resistance force and accurate positioning, so that the length of the new tube 3 is approximately 1.8 m as described above. Many are installed at one pitch. However, the anti-vibration tool 6 need only be able to prevent the horizontal displacement of the new pipe 3 in the horizontal (lateral) direction. Therefore, the anti-vibration tool 6 is sparsely installed at a pitch of about one in 6 m as an example in the longitudinal direction of the new pipe 3. . Therefore, the reinforcing member 7 having a minimum length necessary for bolting to the new pipe 3 can be used. The reinforcing member 7 having the nut 9 fixed to the inner surface side by welding or the like is attached to the inner surface of the new pipe 3 with bolts (see the bolt 10 and the nut 11 in FIG. 21). The nut 9 fixed to the reinforcing member 7 is screwed inwardly with a bolt 6a that has been screwed to the nut 61 of the holding plate 60 and screwed inward, and a cap nut 12 is screwed into the inner end of the bolt 6a. The configuration is stopped.

次に、図24〜図26には、同じく用済みとなったぶれ止め具6の構成要素のうち、少なくとも新管3の内部に突出するネジ軸6a等を解体・撤去することが可能な構成の実施例を示している。Next, in FIG. 24 to FIG. 26, among the components of the anti-vibration tool 6 that has also been used, a configuration capable of disassembling and removing at least the screw shaft 6 a and the like protruding inside the new pipe 3. Example of the present invention is shown.
この実施例は、上記の補強材を使用せず、図25に示す構成の胴筒30を使用したことが特徴である。新管3も指定位置に予め孔開け加工をして、その孔縁へ胴筒30(外径70mm、長さ80mm程度)を先行して内向きに溶接しておく。その後、この新管3を溶融メッキ処理した後に、前記胴筒30の外側面へ複数本のネジ棒31を図25A、Bのような配置で溶接により取り付ける。前記ネジ棒31のネジ山を溶融メッキで埋めないための措置である。しかる後に、予め前記の各ネジ棒31を通す配置に孔を開けると共に、ナット90を固定した蓋板33を、前記の各ネジ棒31へ当てがい、その各孔へ各ネジ棒31を通す。そして、各ネジ棒31へねじ込んだナット32で蓋板33を締め付け固定する。その後、蓋板33の前記ナット90へ、予め押さえ板60のナット61へ外端を強くねじ込んで止めたボルト6aを内向きにねじ込み、新管3の内側へ突き出た同ボルト6aの内端に袋ナット12をネジ止めする。したがって、前記袋ナット12を通じて前記ボルト6aを新管3の内側から回転して外方へ移動させ、既設管2の内面へ前記押さえ板60を押し当てて反力をとり、新管3の水平横方向への規制位置を設定することができる。  This embodiment is characterized in that the above-described reinforcing material is not used and the barrel 30 having the configuration shown in FIG. 25 is used. The new pipe 3 is also drilled at a specified position in advance, and the barrel 30 (outer diameter 70 mm, length 80 mm) is preceded and welded inward to the hole edge. Then, after this new pipe 3 is hot-dip plated, a plurality of screw rods 31 are attached to the outer surface of the barrel 30 by welding in the arrangement as shown in FIGS. This is a measure for not filling the thread of the screw rod 31 with hot dipping. After that, holes are made in advance so that the screw rods 31 are passed, and the cover plate 33 to which the nut 90 is fixed is applied to the screw rods 31 and the screw rods 31 are passed through the holes. Then, the lid plate 33 is fastened and fixed by the nut 32 screwed into each screw rod 31. Thereafter, the bolt 6a, which has been fastened by screwing the outer end into the nut 61 of the holding plate 60 in advance, is screwed inwardly into the nut 90 of the cover plate 33, and is inserted into the inner end of the bolt 6a protruding inside the new pipe 3. Screw the cap nut 12. Accordingly, the bolt 6a is rotated from the inside of the new pipe 3 through the cap nut 12 and moved outward, the pressing plate 60 is pressed against the inner surface of the existing pipe 2 to take a reaction force, and the horizontal direction of the new pipe 3 is increased. The restriction position in the horizontal direction can be set.

しかる後に既設管2と新管3との間に中込材20を充填し、それがたれ落ちしない程度の固さの固化状態になった時点で、前記袋ナット12を通じて前記ボルト6aを新管3の内側から逆回転して、先ずは押さえ板60のナット61から抜き外す。続いて新管3の内方側へ移動させて蓋板33に固着されたナット90からも新管3の内方へボルト6aを抜き外す。つづいて、ナット32を緩めて蓋板33も撤去する。その結果、図26に示す解体状態となる。つまり、新管3の内方への突起物は、およそ胴筒30及びネジ棒31だけの小さなものとなる。  After that, when the interstitial material 20 is filled between the existing pipe 2 and the new pipe 3, and when the solidified state is such that it does not fall off, the bolt 6a is connected to the new pipe 3 through the cap nut 12. First, the nut 61 of the holding plate 60 is pulled out and removed. Subsequently, the bolt 6 a is removed from the nut 90 inward of the new tube 3 from the nut 90 which is moved inward of the new tube 3 and fixed to the lid plate 33. Subsequently, the nut 32 is loosened and the cover plate 33 is also removed. As a result, the dismantled state shown in FIG. 26 is obtained. That is, the inward projection of the new tube 3 is a small one of only the barrel 30 and the screw rod 31.

最後に、新管3を既設管2の中へ引き込む牽引器の実施例を、図27と図28に基づいて説明する。図1の右方の既設管の外側部位で新管3として使用するコルゲートパイプの組み立て及び接続の作業を行う場合、そうした新管3を既設管2の中へ引き込み挿入するには、図1の左方の既設管3の外側部位にウインチを据え付け、そのドラムから巻き出したワイヤーを既設管2の中に通して、右側の作業エリアにまで到達させる。Finally, an embodiment of a retractor that draws the new pipe 3 into the existing pipe 2 will be described with reference to FIGS. In the case of assembling and connecting the corrugated pipe used as the new pipe 3 in the outer part of the existing pipe on the right side of FIG. 1, in order to draw and insert the new pipe 3 into the existing pipe 2, A winch is installed in the outer part of the existing pipe 3 on the left side, and the wire unwound from the drum is passed through the existing pipe 2 to reach the work area on the right side.
一方、作業エリアで組み立て等された新管3のうち先頭のモジュールに図27、図28に示す牽引器70が連結される。図示した牽引器70は、新管3がコルゲートパイプであることを前提とし、上下に半割構造とされたパイプセグメントが両側のフランジ3aを重ね合わせて接合し組み立てられることに着眼して、前記両側のフランジ3aと連結する構成とされている。即ち、H形鋼を利用した横架材71の前面側に、前記ウインチのワイヤー80が連結されている。ワイヤー80の連結態様は、実線で示したように中央部位に連結する場合と、点線で示したように両端部位にY字形に連結する場合がある。前記横架材71の後面側には、アングル等を使用した引張り材72、72が2本を一組として、前記コルゲートパイプの両側のフランジ3aをそれぞれ上下から挟み付ける配置に平行に設けられている。両側の引張り材72、72を先頭のコルゲートパイプの両側のフランジ3aとボルト止め等の方法で強固に結合して、ウインチを運転し引き込みを行うのである。  On the other hand, the puller 70 shown in FIGS. 27 and 28 is connected to the top module of the new pipe 3 assembled in the work area. The tractor 70 shown is based on the premise that the new pipe 3 is a corrugated pipe, and focusing on the fact that the pipe segments having a halved structure on the upper and lower sides are joined and assembled by overlapping the flanges 3a on both sides, It is set as the structure connected with the flange 3a of both sides. That is, the winch wire 80 is connected to the front side of the horizontal member 71 using H-shaped steel. The connection mode of the wire 80 may be connected to the central portion as shown by a solid line, or may be connected to both end portions in a Y shape as shown by a dotted line. On the rear surface side of the horizontal member 71, two tension members 72, 72 using an angle or the like are provided in parallel so as to sandwich the flanges 3 a on both sides of the corrugated pipe from above and below. Yes. The pulling members 72, 72 on both sides are firmly connected to the flanges 3a on both sides of the leading corrugated pipe by a method such as bolting, and the winch is operated and retracted.
コルゲートパイプの両側のフランジ3aは、新管の全長にわたり構造的に連続しているから、新管の引き込み力の伝達に好都合な存在であるし、引き込み作業によってコルゲートパイプの円形を歪める等の心配もないのである。   Since the flanges 3a on both sides of the corrugated pipe are structurally continuous over the entire length of the new pipe, it is convenient for transmitting the pull-in force of the new pipe, and the corrugated pipe is distorted by the pull-in operation. There is no.

上述した通り、本発明に係る更生方法は要するに、新管3の上部に、中込材20の充填圧力による浮き上がりを防止する浮き上がり防止具5を設置し、この浮き上がり防止具5で既設管2に反力をとって新管3の浮き上がり限度位置を設定する。同新管3の側部には、中込材20の充填による左右方向への横ぶれを防ぐぶれ止め具6を設置して、このぶれ止め具6でやはり既設管2に反力をとり新管3の左右方向への位置決めを行う。しかる後に、既設管2とその中へ挿入した新管3との隙間へ中込材を充填して新管3を固定するから、新管3の構造、材質はコルゲートパイプに限らず、鋼管や合成樹脂管の如何を問わず同様に実施することができる。 As described above, the rehabilitation method according to the present invention is basically the upper part of the new pipe 3 provided with the lifting prevention tool 5 for preventing the lifting due to the filling pressure of the filling material 20, and the lifting prevention tool 5 against the existing pipe 2. The lifting limit position of the new pipe 3 is set with force. On the side of the new pipe 3 is installed an anti-vibration tool 6 which prevents lateral shaking due to filling of the filling material 20, and this anti-vibration tool 6 also applies a reaction force to the existing pipe 2 to create a new pipe. 3 is positioned in the left-right direction. After that, since the new pipe 3 is fixed by filling the gap between the existing pipe 2 and the new pipe 3 inserted therein, the structure and material of the new pipe 3 are not limited to corrugated pipes, but are steel pipes or synthetic pipes. Ru can be similarly implemented for regardless of resin pipe.

本発明に係る更生方法の実施要領を示した断面図である。It is sectional drawing which showed the implementation point of the rehabilitation method which concerns on this invention. 新管が滑走具を利用して挿入される状況を示す説明図である。It is explanatory drawing which shows the condition where a new pipe is inserted using a sliding tool. 図2の側面図である。FIG. 3 is a side view of FIG. 2. 滑走具の一例を示した斜視図である。It is the perspective view which showed an example of the gliding tool. 滑走具の異なる実施例を示した斜視図である。It is the perspective view which showed the Example from which a sliding tool differs. 上記滑走具の使用状態を示す側面図である。It is a side view which shows the use condition of the said sliding tool. 浮き上がり防止具の設置状態を拡大して示す側面図である。It is a side view which expands and shows the installation state of a lifting prevention tool. 浮き上がり防止具の設置状態を拡大して示す縦断面図である。It is a longitudinal cross-sectional view which expands and shows the installation state of a lifting prevention tool. AとBは補強材の正面図と側面図である。 A and B are a front view and a side view of the reinforcing material. 浮き上がり防止具と袋ナットの関係を示す立面図である。It is an elevation view which shows the relationship between a floating prevention tool and a cap nut. 浮き上がり防止具の異なる実施例を示す側面図である。It is a side view which shows the Example from which a lifting prevention tool differs. ぶれ止め具の設置状態を拡大して示す側面図である。It is a side view which expands and shows the installation state of a shaking stopper. H形鋼によるレールを使用した新管の挿入方法を示した斜視図である。It is the perspective view which showed the insertion method of the new pipe which uses the rail by H-section steel. パイプ材によるレールを使用した新管の挿入方法を示した断面図である。  It is sectional drawing which showed the insertion method of the new pipe which uses the rail by pipe material. パイプ材によるレールを示す斜視図である。  It is a perspective view which shows the rail by a pipe material. アングルによるレールを使用した新管の挿入方法を示した断面図である。  It is sectional drawing which showed the insertion method of the new pipe which uses the rail by an angle. アングルによるレールを示した斜視図である。  It is the perspective view which showed the rail by an angle. アングルによるレールの使用状態を要部について拡大して示した正面図である。  It is the front view which expanded and showed the use condition of the rail by an angle about the principal part. 新管に丸棒と防護用板材の取り付け使用状態を示す平面図である。  It is a top view which shows the attachment use state of a round bar and a protection board material to a new pipe. 浮き上がり防止具の異なる実施例を示す側面図である。  It is a side view which shows the Example from which a lifting prevention tool differs. 前記浮き上がり防止具の管軸方向の断面図である。  It is sectional drawing of the pipe-axis direction of the said lifting prevention tool. 中込材の充填後、浮き上がり防止具を解体した状態を示す部分図である。  It is a fragmentary figure which shows the state which disassembled the lifting prevention tool after filling of an inside material. ぶれ止め具の異なる実施例を示す部分図である。  It is a fragmentary figure which shows the Example from which a shake stopper differs. ぶれ止め具の更に異なる実施例を示す側面図である。  It is a side view which shows the further different Example of a shaking stopper. A、Bは上記ぶれ止め具に使用する胴筒の正面図と側面図である。  A and B are a front view and a side view of a barrel used for the above-described anti-blur tool. 中込材の充填後、ぶれ止め具を解体した状態を示す立面図である。  It is an elevation view which shows the state which disassembled the anti-blurring tool after filling of the insert material. 新管の牽引器の使用状態を示す斜視図である。  It is a perspective view which shows the use condition of the puller of a new pipe. 牽引器を示す斜視図である。  It is a perspective view which shows a traction device.

符号の説明Explanation of symbols

2 既設管
3 新管(コルゲートパイプ)
5 浮き上がり防止具
6 ぶれ止め具
7 補強材
4、4’滑走具
15 レール
20 中込材
16 レール
160 パイプ材
161 繋ぎ材
17 レール
170 アングル
171 繋ぎ材
18 丸棒
19 防護用板材
9、90ナット
10 ボルト止め
50 押さえ板
51 ナット
5a ボルト
12 袋ナット
2 Existing pipe 3 New pipe (corrugated pipe)
DESCRIPTION OF SYMBOLS 5 Lifting prevention tool 6 Shake prevention tool 7 Reinforcement material 4, 4 'sliding tool 15 Rail 20 Insertion material 16 Rail 160 Pipe material 161 Connecting material 17 Rail 170 Angle 171 Connecting material 18 Round bar 19 Protection board material 9, 90 nut
10 Bolt stop 50 Presser plate 51 Nut 5a Bolt 12 Cap nut

Claims (10)

地中に埋設された既設管の中へ新管を挿入して、既設管と新管の間へ中込材を充填し固定する更生方法において、
新管としてコルゲートパイプを使用し、同コルゲートパイプの中心を通る水平線より上方の位置に、中込材の充填による浮き上がりを防止する浮き上がり防止具を、コルゲートパイプの管壁に沿って管軸方向に取り付け固定した補強材に支持力をとって新管の内側から外向きに設置し、この浮き上がり防止具で既設管に反力をとりコルゲートパイプの浮き上がり限度位置を設定すること、
同コルゲートパイプにおいて前記浮き上り防止具よりも下方の位置に、中込材の充填による左右方向への横ぶれを防ぐぶれ止め具を新管の内側から外向きに設置し、このぶれ止め具で既設管に反力をとりコルゲートパイプの左右方向への位置決めを行うこと、
しかる後に、既設管とその中へ挿入したコルゲートパイプとの隙間へ中込材を充填してコルゲートパイプを固定することを特徴とする、既設管の更生方法。
In the rehabilitation method of inserting a new pipe into an existing pipe buried in the ground and filling and fixing the interstitial material between the existing pipe and the new pipe,
A corrugated pipe is used as a new pipe, and a lift prevention tool is installed in the pipe axis direction along the corrugated pipe's pipe wall at a position above the horizontal line that passes through the center of the corrugated pipe to prevent it from rising due to filling of the insert material. Install support force on the fixed reinforcing material and install it outward from the inside of the new pipe, and set the corrugated pipe lifting limit position by using the anti-lifting tool to counteract the existing pipe,
A position below the float upstream preventer in the corrugated pipe, placed outward blur stop to prevent lateral motion in the lateral direction due to the filling of Nakagomi material from the inside of the new pipe, existing in the blur stop Position the corrugated pipe in the left-right direction by applying a reaction force to the pipe,
Thereafter, the corrugated pipe is fixed by filling the gap between the existing pipe and the corrugated pipe inserted therein and fixing the corrugated pipe.
新管としてのコルゲートパイプは、その外面に既設管の内面を滑る滑走具を取り付けて既設管の中へ挿入することを特徴とする、請求項1に記載した既設管の更生方法。 The corrugated pipe as a new pipe is attached to a sliding tool that slides on the outer surface of the existing pipe and inserted into the existing pipe, and the existing pipe is rehabilitated according to claim 1 . 既設管の底部にレールを敷設し、新管としてのコルゲートパイプは前記レール上を滑走させて既設管の中へ挿入することを特徴とする、請求項1に記載した既設管の更生方法。 The method of rehabilitating an existing pipe according to claim 1, wherein a rail is laid on the bottom of the existing pipe, and a corrugated pipe as a new pipe slides on the rail and is inserted into the existing pipe. レールは、2本のパイプ材をほぼ平行に並べ、これを直角方向に配置した繋ぎ材で連結した構成であることを特徴とする、請求項に記載した既設管の更生方法。 The method for rehabilitating an existing pipe according to claim 3 , wherein the rail has a structure in which two pipe members are arranged in parallel and connected by a connecting member arranged in a right angle direction. レールは、2本のアングルをほぼ平行に配置し、これを直角方向に配置した繋ぎ材で連結した構成であることを特徴とする、請求項に記載した既設管の更生方法。 The method for rehabilitating an existing pipe according to claim 3 , wherein the rail has a structure in which two angles are arranged substantially in parallel and are connected by a connecting material arranged in a right angle direction. 新管としてのコルゲートパイプは、その底部外面の長手方向に、前記レールを構成する2本のパイプ材又は2本のアングルの外側又は内側に位置する滑走ガイド用の丸棒と、前記丸棒の内側又は外側に配置された防護用板材を備えていることを特徴とする、請求項3〜5のいずれか一に記載した既設管の更生方法。 The corrugated pipe as a new pipe has, in the longitudinal direction of the bottom outer surface thereof, two pipe members constituting the rail, or a round bar for a sliding guide located outside or inside two angles, and the round bar The rehabilitation method for an existing pipe according to any one of claims 3 to 5 , further comprising a protective plate disposed inside or outside. 既設管がコルゲートパイプであることを特徴とする、請求項1〜6のいずれか一に記載した既設管の更生方法。 Wherein the existing pipe is corrugated pipe, rehabilitation methods of the existing pipe as claimed in any one of claims 1 to 6. 浮き上がり防止具及びぶれ止め具は、新管であるコルゲートパイプの内側面の指定位置に、内面側にナットを固着した補強材をボルト止め取り付けて固定し、前記補強材固着した前記ナット、外端を押さえ板のナットへネジ止めしたボルトを内向きにねじ込んで支持力をとり、同ボルトの内端に袋ナットをネジ止めした構成であり、
前記袋ナットを通じて前記ボルトを新管の内側から回転し、既設管の内面に前記押さえ板を押し当てて反力をとり新管の浮き上がり限度位置を設定し、且つ同新管の左右方向への位置決めを行うこと、
込材を充填しそれが所定の固化状態になった時点で前記袋ナットを通じて前記ボルトを新管の内側から回転して押さえ板のナット及び補強材に固着されたナットから新管内へ抜き外し、その後前記ボルト止めを緩めて補強材を撤去することを特徴とする、請求項1に記載した既設管の更生方法。
Preventer and shake stop lift is at a specified position of the inner side surface of the corrugated pipe is a new tube, a reinforcing member which is fixed to the nut on the inner surface side and fixed by attaching bolted, to the nut which is fixed to the reinforcing member , It is a configuration in which a bolt that screwed the outer end to the nut of the holding plate is screwed inward to take support force, and a cap nut is screwed to the inner end of the bolt,
The bolt is rotated from the inside of the new pipe through the cap nut, the pressing plate is pressed against the inner surface of the existing pipe, the reaction force is taken to set the rising limit position of the new pipe, and the horizontal direction of the new pipe is set. Positioning,
Remove vent from filling medium write material which is secured to the nut and reinforcement of the rotating pressing plate the bolt from the inside of the new tube through the cap nut when it reaches a predetermined solidification state nut to a new tube The method for rehabilitating an existing pipe according to claim 1, wherein the bolting is then loosened and the reinforcing material is removed.
浮き上がり防止具を設置するための補強材は、新管であるコルゲートパイプの管軸方向に複数本を一連に配置し、隣接する補強材相互間の突き合わせ端部は新管であるコルゲートパイプを屈曲可能に連結せず、又は緩く連結して取り付けられていることを特徴とする、請求項1又は8に記載した既設管の更生方法。 Reinforcements for installing the arrester floating is a plurality of the tube axis direction of the corrugated pipe is a new tube was placed in a series, butted end portions between the reinforcing member mutually adjacent bending the corrugated pipe, a new pipe not be linked, or loosely, characterized in that mounted in conjunction, rehabilitation methods of the existing pipe according to claim 1 or 8. 新管であるコルゲートパイプの横ぶれを防ぐぶれ止め具の設置位置は、新管の中心を通る水平線上の位置から浮き上がり防止具を設置した位置までの間であることを特徴とする、請求項1又は8に記載した既設管の更生方法。 The position of installation of the anti-vibration prevention device for preventing lateral shaking of the new corrugated pipe is between the position on the horizontal line passing through the center of the new pipe and the position where the anti-lifting device is installed. A method for rehabilitating an existing pipe as described in 1 or 8 .
JP2003317303A 2002-12-25 2003-09-09 Rehabilitation of existing pipes Expired - Fee Related JP4295584B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003317303A JP4295584B2 (en) 2002-12-25 2003-09-09 Rehabilitation of existing pipes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002374751 2002-12-25
JP2003317303A JP4295584B2 (en) 2002-12-25 2003-09-09 Rehabilitation of existing pipes

Publications (2)

Publication Number Publication Date
JP2004218827A JP2004218827A (en) 2004-08-05
JP4295584B2 true JP4295584B2 (en) 2009-07-15

Family

ID=32911080

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003317303A Expired - Fee Related JP4295584B2 (en) 2002-12-25 2003-09-09 Rehabilitation of existing pipes

Country Status (1)

Country Link
JP (1) JP4295584B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4545042B2 (en) * 2005-05-16 2010-09-15 日鐵住金建材株式会社 Rehabilitation of existing pipes
JP4714760B2 (en) * 2008-02-26 2011-06-29 株式会社デック Pipe rehabilitation method for existing pipe burial sites and new pipes for pipe rehabilitation
JP2011102626A (en) * 2009-11-11 2011-05-26 Sekisui Chem Co Ltd Method for installing regeneration pipe
JP6858386B1 (en) * 2020-08-12 2021-04-14 日本ノーディッグテクノロジー株式会社 Deformation prevention device for rehabilitation pipes and rehabilitation methods for existing pipes
JP6808261B1 (en) * 2020-08-31 2021-01-06 日本ノーディッグテクノロジー株式会社 Rehabilitation pipe height adjustment device and rehabilitation method for existing pipes

Also Published As

Publication number Publication date
JP2004218827A (en) 2004-08-05

Similar Documents

Publication Publication Date Title
US11002398B2 (en) Trenchless rehabilitation system for deformation of large diameter HDPE pipelines and method thereof
US8109057B2 (en) Tower foundation system
AU2009234636A1 (en) Multi-purpose earth anchor bracket
JP4295584B2 (en) Rehabilitation of existing pipes
JP3493218B2 (en) Rehabilitation method of existing sewer and rehabilitation pipe supporting material used for this rehabilitation method
JP2018033195A (en) Trough support member, laying method for trough support member and trough bridge
JP4545042B2 (en) Rehabilitation of existing pipes
JP2009084979A (en) Spacer for tube insertion
JP5295310B2 (en) Drilling hole wall protective pipe sealing device
JP6977927B2 (en) In-pipe excavator and in-pipe excavation method
JP4033804B2 (en) Repair equipment and method for repairing corroded steel pipe columns
JP6018963B2 (en) Method for constructing gradient correction pipeline and support used therefor
JP6563801B2 (en) Column reinforcing method and column reinforcing structure
KR102172692B1 (en) Stiffener of wale for earth retaining
JP2008064251A (en) Repair or reinforcement structure of conduit
JP2008179966A (en) Regeneration panel, regenerating method using the same, and regenerated structure
JP2007107276A (en) Repair reinforcement method of existing quaywall and its repair reinforcement structure
JP4474965B2 (en) Leg fixing method for building
CN205976140U (en) Side fascia installation node
JP5083900B2 (en) Repair method of existing pipe and underwater work box
JP2008031742A (en) Support of protective body against avalanche/rock fall and the like, and auxiliary implement for manufacture of the support
JP4512072B2 (en) Water stoppage propulsion structure for wellheads in propulsion work
CN221001103U (en) Foundation pit construction watertight fittings
JP4495641B2 (en) Pipe roof receiving frame that also serves as the starting pit wall
JP6905381B2 (en) Construction method of retrofitting members to steel pipe columns

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050905

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20050905

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080805

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080820

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20081016

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20090317

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20090410

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120417

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120417

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130417

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140417

Year of fee payment: 5

LAPS Cancellation because of no payment of annual fees