JP3898862B2

JP3898862B2 - Lining construction method in pipe and auxiliary equipment for construction

Info

Publication number: JP3898862B2
Application number: JP32640899A
Authority: JP
Inventors: 栄器秋元; 浜夫山城
Original assignee: 足立建設工業株式会社
Priority date: 1999-11-17
Filing date: 1999-11-17
Publication date: 2007-03-28
Anticipated expiration: 2019-11-17
Also published as: JP2001138398A

Description

【０００１】
【発明の属する技術分野】
この発明は、下水道等の既設の管渠において、その管渠の内面にライニング層を施工するための管渠内ライニング施工方法に関し、更に詳しくは、長尺の板状体よりなる帯状部材に対し、規制フレームの規制を受けて該規制フレーム回りに移動する成形フレームに取り付けられたローラ体よりなる接合機構部をもって該帯状部材を螺旋状に捲回して管状体いわゆるライニング管を形成し、管渠内に該ライニング管を前進形成してライニング施工を実施する管渠内ライニング施工方法及びその方法に使用される施工補助装置に関する。この場合、帯状部材は塑性変形性を付与され、規制フレームに対応する形状、矩形、馬蹄形等の自由な断面に形成される。
【０００２】
【従来の技術】
この種の管渠内のライニング施工方法は、特開平８−２６１３６３号公報（以下、先行技術という）において公知である。
すなわち、該先行技術によれば、長尺にして塑性変形性を有する帯状部材に対し、形成されるライニング管に相似する規制フレームを設け、この規制フレーム回りに移動する成形フレームに外面ローラと内面ローラとからなる接合機構部を取り付け、該接合機構部の挟着接合作用をもって該帯状部材を螺旋状に捲回してライニング管を製管し、管渠内に該ライニング管を前進形成して管渠内ライニング施工を実施するものである。なお、規制フレーム及び成形フレームをもってライニング製管装置を構成する。
【０００３】
ところで、この先行技術の地下埋設管へのライニング施工においては、ライニング施工の開始に際し、人孔より分解された製管装置を管渠内に運び込んだ後、ライニング製管装置を組み立て、次いで地上部より帯状部材を引き込み、この製管装置に組み付け、いわゆる開始用ライニング管を形成する。この開始用ライニング管の組付けは、手作業を主体としてなされ、製管装置の成形フレーム回りに数回、特には３回程度捲回されて実施されるものである。しかる後、この開始用ライニング管が所定の剛性を得るまで該開始用ライニング管を管渠に対して固定し、製管作業を継続してゆく。
ライニング管が一定長さになると、それ自体の剛性で製管装置の回転反力を受けることができ、以後は通常の製管作業となる。
しかして、この初期作業において、開始用ライニング管の形成が極めて熟練と人手とを要するものであり、かつ、その剛性を得るために所定長さを要し、結果として施工に手間が掛かるものとなり、施工上の隘路となっている。
【０００４】
【発明が解決しようとする課題】
本発明は上記実情に鑑み、当該先行技術の施工上の隘路となっている開始用ライニング管を形成する初期工程の改善を図るべくなされたものであり、当該初期工程の作業に付き、熟練を要さず簡単に施工でき、煩雑な手作業を省くことができ、もって施工の効率の向上をなすことができる管渠内ライニング施工方法を提供することを目的とする。
本発明はこのため、新規な施工用補助装置を用いることによりこの課題の解決を図ったものである。
従って、本発明はまた、この新規な施工用補助装置を提供するものである。
【０００５】
【課題を解決するための手段】
本発明の管渠内のライニング施工方法及びその施工用補助装置は、具体的には以下の構成を採る。
すなわち、第１番目の発明は管渠内のライニング施工方法に係り、請求項１に記載のとおり、管渠内において、両側縁部に継手が形成され連続的に供給される塑性変形性が付与された長尺の帯状部材を螺旋状に捲回し、相接する継手相互を接合させて形成された管状のライニング管を残置させ、前記既に形成されたライニング管の前方に新たに供給される帯状部材をもって付加ライニング管を付加形成する方法であって、前記既に形成されたライニング管の前端部に、規制フレームによって規制されて移動するとともに内面ローラと外面ローラとからなる接合機構部を有する屈撓自在の成形フレームが配され、前記内面ローラと前記外面ローラとの挟着接合機能によって前記付加ライニング管を形成し、管渠内にライニングを施工する方法において、前記ライニングの施工開始に際し、前記規制フレームと相似し規定の断面どおりの断面形状を有するとともに、所定の剛性を有し前縁に前記帯状部材の接続部を有してなる既製の管状体をなす施工用補助装置を使用し、前記施工用補助装置の該管状体内に前記成形フレームが内接されるように組み込み、該管状体に前記成形フレームに装着された前記内面ローラと前記外面ローラとを挟着保持し、この内外面ローラの移動延長上に前記接続部を介して前記帯状部材を接続させてライニング管を形成することを特徴とする。
本施工方法は以下の第１実施形態に対応する。
上記構成において、成形フレームはその外周にライニング管の内面に直接的に当接し、ライニング管の形状を規定する案内ローラを包含するものである。
当該方法において、管状体はライニング管が一定長に達すると除去される態様、あるいはそのまま残置される態様を採る。
（作用）
ライニングの対象となる管渠の始点に施工用補助装置としての管状体を設置する。
次いで、規制フレームとともに成形フレームからなる製管装置を管状体の前部に組み付け、成形フレームに取り付けられている接合機構部の内面ローラと外面ローラとを管状体に挟み付けるとともに、該管状体の接合部に帯状部材を段差を伴うことなく接続固定する。
接合機構部の駆動に伴い、内外面ローラは共に回転し、その反力により成形フレームの全体が移動を起こす。剛性を有する管状体は、接合機構部の内外面ローラの回転反力を確実に受け、成形フレームの移動は円滑になされる。内外面ローラが接合部を通過して帯状部材に移動し、内外面ローラは管状体及び規制フレームに従って所定の軌道上を移動し、帯状部材を各角部において折り曲げる。この移動は、施工用補助装置の管状体の前縁に沿う移動となり、螺旋軌跡を採る。
１周目が完了すると、先の帯状部材と２周目の帯状部材とは互いの前後縁の継手構造をもって、かつ内外面ローラの挟着接合作用により、接合され、螺旋状に捲回される。
しかる後、２周目より複数回捲回され、一定長のライニング管が製管される。この状態で管状体が取り外され、製管されたライニング管を管渠の始点に移動する。
再び、製管作業を実施し、成形フレームの案内ローラ回りに帯状部材が螺旋状に捲回されてライニング管を形成する。このとき、成形フレームは規制フレームにより移動を規制され、規制フレームの形状に沿って移動し、角部において塑性変形性の帯状部材は曲げ力を付与される。本管渠内用ライニング施工装置はその成形フレームとともに回転動作をなしつつライニング管を形成してゆく。
【０００６】
第２番目の発明は上記管渠内のライニング施工方法に使用される施工用補助装置に係り、請求項２に記載のとおり、管渠内において、両側縁部に継手が形成され連続的に供給される塑性変形性が付与された長尺の帯状部材を螺旋状に捲回し、相接する継手相互を接合させて形成された管状のライニング管を残置させ、前記既に形成されたライニング管の前方に新たに供給される帯状部材をもって付加ライニング管を付加形成し、前記既に形成されたライニング管の前端部に、規制フレームによって規制されて移動するとともに内面ローラと外面ローラとからなる接合機構部を有する屈撓自在の成形フレームが配され、前記内面ローラと前記外面ローラとの挟着接合機能によって前記付加ライニング管を形成し、管渠内にランニングを施工する方法に使用される装置であって、前記成形フレームが内接して収容されるとともに、その前縁において該成形フレームに装着される前記内面ローラと前記外面ローラとが挟着保持される所定の剛性を有する管状体よりなり、前記内面ローラと前記外面ローラとの移動延長上に帯状部材が当接状に接続される接続部が形成されてなることを特徴とする。
本施工用補助装置は以下の第１実施形態に対応する。
上記構成において、成形フレームはその外周にライニング管の内面に直接的に当接し、ライニング管の形状を規定する案内ローラを包含するものである。
また、管状体の外面には外面ローラの案内用の突条が形成されてなること、管状体は分割体よりなること、は適宜なされる選択的事項である。
【０００７】
第３番目の発明は別な管渠内のライニング施工方法に係り、請求項５に記載のとおり、管渠内において、両側縁部に継手が形成され連続的に供給される長尺の帯状部材を螺旋状に捲回し、相接する継手相互を接合させて形成された管状のライニング管を残置させ、前記既に形成されたライニング管の前方に新たに供給される帯状部材をもって付加ライニング管を付加形成する方法であって、前記既に形成されたライニング管の前端部に、内面ローラと外面ローラとからなる接合機構部を有する成形フレームが配され、前記内面ローラと前記外面ローラとの挟着接合機能によって前記付加ライニング管を形成し、管渠内にライニングを施工する方法において、前記ライニングの施工開始に際し、規定の断面どおりの円形断面をなすとともに所定の剛性を有し前縁に前記帯状部材の接続部を有してなる既製の管状体をなす施工用補助装置を使用し、前記施工用補助装置の該管状体内に前記成形フレームが内接されるように組み込み、該管状体に前記成形フレームに装着された前記内面ローラと前記外面ローラとを挟着保持し、この内外面ローラの移動延長上に前記接続部を介して前記帯状部材を接続させてライニング管を形成することを特徴とする。
本施工方法は以下の第２実施形態に対応する。
上記構成において、成形フレームはその外周にライニング管の内面に直接的に当接し、ライニング管の形状を規定する案内ローラを包含するものである。
当該方法において、管状体はライニング管が一定長に達すると除去される態様、あるいはそのまま残置される態様を採る。
帯状部材は弾性を有するもの、あるいは塑性変形性を有するもののどちらでも適用される。
成形フレームは剛性のもの、あるいは屈撓性を有するもののどちらでも適用される。屈撓性を有するものにおいては、内折れ防止がなされる。
（作用）
ライニングの対象となる管渠の始点に施工用補助装置としての円形の管状体を設置する。
次いで、円環状をなすかあるいは内折れ防止がなされた屈撓自在の成形フレームからなる製管装置を管状体の前部に組み付け、成形フレームに取り付けられている接合機構部の内面ローラと外面ローラとを管状体に挟み付けるとともに、該管状体の接合部に帯状部材を接続固定する。
接合機構部の駆動に伴い、内外面ローラは共に回転し、その反力により成形フレームの全体が移動を起こす。
剛性を有する管状体は、接合機構部の内外面ローラの回転反力を確実に受け、成形フレームの移動は円滑になされる。
内外面ローラが接合部を通過して帯状部材に移動し、内外面ローラは成形フレームに従って所定の軌道上を移動し、帯状部材を折り曲げる。この移動は、施工用補助装置の管状体の前縁に沿う移動となり、螺旋軌跡を採る。
１周目が完了すると、先の帯状部材と２周目の帯状部材とは互いの前後縁の継手構造をもって、内外面ローラの挟着接合作用により接合され、螺旋状に捲回される。
しかる後、２周目より複数回捲回され、一定長のライニング管が製管される。以下通常の製管作業となり、成形フレームの案内ローラ回りに帯状部材が螺旋状に捲回されてライニング管を形成する。
【０００８】
【発明の実施の形態】
本発明の管渠内のライニング施工方法及びその施工用補助装置の実施の形態を図面に基づいて説明する。
（第１実施形態）
図１〜図１８に本発明の管渠内のライニング施工方法の一実施形態（第１実施形態）を示す。本実施形態では、管渠として地下へ埋設された矩形断面状の下水道管渠Ｐへの適用例を示す。しかして、この下水道管渠Ｐの内面に本施工用補助装置Ｈ・製管装置ＳをもってライニングＲが施される。
なお、図１はそのライニング施工工事の概要を示す。図２〜図７は本施工用補助装置Ｈの各部の構成を示し、図８〜図１８は製管装置Ｓの各部の構成を示す。また、図１９〜図２０は帯状部材の一態様を示す。
これらの図において、製管装置Ｓの進行方向（矢印イ）をもって、前部、後部と定義する。
【０００９】
帯状部材１００，１３０
図１９は本実施形態のライニング施工方法において使用される帯状部材の一例を示す。
帯状部材１００は本体が一定厚さの平板状をなし、その外面の長手方向に適宜数（図例では５、通常は３）の突条１０２が連続的に縦設される。突条１０２に先端部にはフランジ１０２ａが形成される。突条１０２の相互間は溝１０４もしくは溝空間を形成する。内面１０６は実質的に平滑に形成される。
帯状部材１００の両側には互いに内外に重合して係合する接合部１００Ａ，１００Ｂが形成される。すなわち、前縁側接合部１００Ａはその前端部の突条１０２Ａの基部が膨径され、その内面側より凹溝１１０が縦設され、更にこの突条１０２Ａより張出し部１１２が連設される。後縁側接合部１００Ｂは後端部の突条１０２Ｂより張出し部１１４が張設され、該張出し部１１４の端部寄りに前記前縁側接合部１００Ａの凹溝１１０に係合する凸条１１６が縦設される。
この帯状部材１００において、中間の突条１０２間に金属製（通常は鋼製）の断面Ｗ字形をなす塑性変形機能材としての塑性変形材１２０が装着される。該塑性変形材１２０は図例の位置に限定されず、その他の位置あるいは複数箇所であってもよく、また、形状としてＶ字形、Ｕ字形等が採択される。
接合時において、相隣れる帯状部材１００の前縁部と後縁部とが重なり合い、前縁側接合部１００Ａに後縁側接合部１００Ｂが後記する接合ローラ部の外面ローラと内面ローラとの挟着作用を受けて、凹溝１１０内に凸条１１６が、また、突条１０２Ｂのフランジ１０２ａ内に張出し部１１２の端部がそれぞれ嵌り込み、接合される。この場合、主たる係合は凹溝１１０と凸条１１６とによりなされ、張出し部１１２と突条１０２Ｂとは従たる係合をなすものであり、従って、場合によっては従たる係合は省略されうる。
更に、本実施形態では張出し部１１２，１１４の当接部分にはシール材１１８が介装され、接合性を高める。なお、接合部１００Ａ，１００Ｂにおける嵌合係合で十分であれば、当該シール材１１８を省略することができる。
帯状部材は合成樹脂の素材をもって作成され、特に成形性の観点から押出し形成により連続的に成形できる塩化ビニール（ＰＶＣ）樹脂が好適である。しかし金属製による成形を妨げるものではない。
【００１０】
図２０は帯状部材の他の態様を示す。
この帯状部材１３０は、外面の長手方向に適宜数の台形状の突条１３２が連続的に縦設され、突条１３２の間は谷部１３４に形成される。突条１３２及び谷部１３４は幅方向に等しいピッチをなす。内面１３６は実質的に平滑に形成される。帯状部材１３０の両側には互いに内外に重合して係合する接手部１３０Ａ，１３０Ｂが形成される。
この帯状部材１３０において、突条１３２内に線材としての塑性変形材１２２が埋設される。
接合時において、外側接手部１３０Ａに内側接手部１３０Ｂが接合ローラ部の外面ローラと内面ローラとにより押圧され、対応する係合部位すなわち丸形凹溝と丸形凸条とが、また、切込み凹溝と張出し部の端部とがそれぞれ嵌合し、接合される。
【００１１】
ライニング施工工事
図１は本ライニング施工工事の概要を示し、地中に埋設された下水道管渠Ｐの内面に本施工用補助装置Ｈ・製管装置ＳをもってライニングＲが施される。Ｑ１は上流側人孔、Ｑ２は下流側人孔であって、工事は上流側から下流側に向けて実施される。
なお、地上部においては、上流側人孔Ｑ１側では帯状部材１００を巻き付けた回転台付き巻出し装置Ｔが配され、下流側人孔Ｑ２側では製管装置Ｓに連接される油圧駆動源Ｇが配される。
【００１２】
施工用補助装置Ｈ（図２〜図７参照）
施工用補助装置Ｈは、その本体部１は上辺部１ａ、下辺部１ｂ、左右側面部１ｃ，１ｄより角部に曲率をもって実質的に四角断面状の管状体をなし、かつ、該本体部１その横断面は形成しようとするライニング管Ｒの断面に一致するものであり、所定の剛性及び重量と所定の長さとを保持する。本体部１の厚さは帯状部材の本体の厚さと一致することを原則とするが、薄くてもよく、若干の厚目は許容される。また、該本体部１は軸方向に平行して分割される適宜数（本実施形態では４）の分割体１Ａ，１Ｂ，１Ｃ，１Ｄよりなり、各分割体１Ａ，１Ｂ，１Ｃ，１Ｄは内方へ張り出すフランジ２をもって互いに当接され、締具３（ボルト・ナット）をもって組み立てられる。
【００１３】
本体部１は、通常は鋼あるいはアルミ等の金属をもって形成されるが、他の素材を除外するものではなく、例えば、合成樹脂、特には繊維強化合成樹脂（ＦＲＰ）をもっても形成される。これらにおいて、荷重が加わった際にも形を維持するに足る剛性を有することが重要である。従って、若干の弾性は許容される。重量が不足する場合には他の重量体が付加されるか、あるいは止め具が配され、容易に変形もしくは変位しないようになされる。
【００１４】
該本体部１の上辺部１ａの前端には、帯状部材１００を受け入れるとともに当該部位で該帯状部材１００が固定される切欠き凹部５が形成される。本体部１の前端部は切欠き凹部５を除いて連続して連なる。
この切欠き凹部５に臨んで、すなわち切欠き凹部５前面には、本体部１の上面に少なくとも２列又はそれ以上の前部凸条６が所定間隔を保って一定の長さにわたって縦設され、更に、該凸条６に並んで後部凸条７が縦設される。後部凸条７は図例では上辺部１ａのみに形成されているが、本体部１を１周するように形成されてもよい。
前部及び後部凸条６，７の間隔は後述する製管装置Ｓの接合ローラ部の外面ローラにおける鍔の間隔に対応する。
更に、この切欠き凹部５に臨んで、小径の穴８が穿設される。
【００１５】
この切欠き凹部５に対し帯状部材１００が取り付けられる。
すなわち、図５に示すように、地上部より引き込んだ帯状部材１００の端面を切欠き凹部５の端面に衝き合わせ、該帯状部材１００に予め穿設された穴１００ａと切欠き凹部５の穴８とを針金（番線）で固定する。この固定によれば、帯状部材１００は後で当該補助装置Ｈより離脱することができる。
本体部１の厚みと帯状部材１００とは一致するので、両者は段差なく連続して連なる。本体部１の厚みが帯状部材１００より大きい場合には、本体部１の凸状６，７に替えて溝が形成され、溝と溝との間を凸状６，７とする。
この接合は上記の態様に限られない。接着剤による衝合わせ接続でもよい。また、接合具を介してワンタッチ式に接合するようにしてもよい。
【００１６】
本施工用補助装置Ｈにおいて、種々の態様がなされる。
1)本体部１の後部寄りに管渠Ｐの壁面に押し当てられる進退自在の固定具（図示せず）を１又は複数にわたって放射状に取り付けること。該固定具は例えばボルト等のねじ体よりなり、本体部１に固定したナット等のねじ部に螺合されたねじ体を回動させて本体部１の外方へ進出させ、管渠Ｐの壁面に押し当てる。該固定具により本施工用補助装置Ｈの固定がより確実になり、ぐらつきがなくなる。本施工用補助装置Ｈの剛性を補う。
【００１７】
以下、工程順に述べる。
工程１（施工用補助装置Ｈの設置）
本施工用補助装置Ｈは、管渠Ｐの入口部に配され、支持台Ｉを介して設置される。すなわち、本施工用補助装置Ｈの本体部１はその各側辺部１ａ，１ｂ，１ｃ，１ｄを管渠Ｐの内面と一定間隔を存する。本支持台Ｉは場合によっては省略されうる。
【００１８】
工程２（製管装置Ｓの準備）
しかる後、製管装置Ｓを本管渠Ｐ内へ運び込み、本施工用補助装置Ｈの所定位置にかつ所定状態を持って組み付けられる。
図８〜図１８に基づいて本実施形態の製管装置Ｓを説明する。
製管装置Ｓ（図８〜図１８参照）
この製管装置Ｓは、図８・図９に示されるように、所定幅を有し複数のリンク体により構成されるリンク機構をもって屈撓自在の環状体をなす成形フレーム１１、該成形フレーム１１のリンク機構の各軸部に配される複数の案内ローラ１２、該成形フレーム１１に所定間隔を保って取り付けられ、内面ローラ１３と外面ローラ１４とを含む接合機構部１５、及び、該成形フレ−ム１１の内側に配される矩形形状をなす規制フレ−ム１６、該規制フレーム１６と前記成形フレーム１１とに跨がって配される案内子１７、の主要部からなる。更に、接合機構部１５には送りロ−ラ機構１８が付加される。
【００１９】
以下、各部の細部構造を説明する。
成形フレーム１１（図１３〜図１５参照）
成形フレーム１は、所要の幅をもって環状体をなし、全体がリンク体２０の連なりよりなるリンク機構をもって外径方向へは屈撓自在となっており、かつ横剛性を有する。
もっと詳しくは、各リンク体２０は、図１３・図１４に示されるように、外側リンク体２０Ａと内側リンク体２０Ｂとの２態様を採り、交互に配される。
外側リンク体２０Ａは、全体としてＨ形をなし、相平行する側板２１とこれらの中央部においてこれらを剛的に繋ぐ連結板２２とからなる。側板２１の両側には軸孔が開設される。
内側リンク体２０Ｂは、コ字形をなす２つの分割体２０ｂより組み立てられて全体として外側リンク体２０Ａと同形のＨ形をなす。すなわち、この分割体２０ｂは、短側板２３と背板２４とからなるコ字体をなし、背板２４相互を対接してボルト・ナットにより剛結され、Ｈ形体として一体的に組み立てられる。短側板２３には外側リンク体２０Ａの側板２１の軸孔に対応して円形の軸孔が開設される。
しかして、外側リンク体２０Ａと内側リンク体２０Ｂとは、外側リンク体２０Ａの側板２１の内側に内側リンク体２０Ｂの側板２３を重ねるとともに、それらの軸孔の軸心を一致させ、該軸孔に挿通された軸部２５によりリンク機構を構成する。
【００２０】
（中折れ防止機構）
リンク体２０の相互は１８０°を基準に、外折れが可能とされるが、中折れは防止される。このため、中折れ防止機構が設けられるものであって、図１４にその一例を示す。すなわち、一方のリンク体２０Ａ（Ｉ）の側板の端部にはストッパー用の凹部２７が凹設され、他のリンク体２０Ｂ（ＩＩ）の側板には先のリンク体２０（Ｉ）側に突設するストッパー２８が固設されてなり、ストッパー２８がストッパー凹部２７の一方の端面２７ａに当接することにより中折れが阻止される。また、ストッパー２８はストッパー凹部２７の他方の端面２７ｂに当接するまで外折れが可能である。凹部２７の開き角度（α）が揺動幅となる。
【００２１】
案内ローラ１２（図１３〜図１５参照）
案内ローラ１２は、成形フレーム１１の各軸部２５に回転自在に装着される。ローラ本体は硬質の合成樹脂体あるいは金属体よりなり、帯状部材１００の内面に当接する。標準の案内ローラ１２（１２ａ）はリンク体２０の内幅一杯の長さを有するが、接合機構部１５の所要数（通常は１乃至２）の前方部の案内ローラ１２（１２ｂ）は帯状部材１００の幅だけ後方へずらされるか、短くされる（図１５参照）。
【００２２】
接合機構部１５（図１６〜図１８参照）
接合機構部１５は、成形フレーム１１の取付け部に装着される。該接合機構部１５は送りローラ機構部１８を備える。
該接合機構部１５は、内面ローラ１３と外面ローラ１４とが組となった接合ローラ部３０を主体とし、かつ、これらのローラ１３，１４の同期回転を図る歯車機構３１を収めた箱体３２、及び該箱体３２に取り付けられローラ１３，１４の回転駆動源としての油圧モータ３３を含み、接合機構部１５は螺旋状に捲回される帯状部材１００の接合部、すなわち当該帯状部材１００が最初に閉合する位置に対応して配される。なお、内面ローラ１３は案内ローラ１２と同様に成形フレーム１１の軸部２５に装着される。
【００２３】
（接合ローラ部３０）（図１７・図１８参照）
接合ローラ部３０は、内面ローラ１３と外面ローラ１４とが互いに管軸方向に相並んで、かつ、両ローラ１３，１４の間に帯状部材１００を挟着するように所定の間隔を保って配される。これらのローラ１３，１４は歯車機構３１の駆動軸に連動して、回転駆動される。
図１８に基づいて接合ローラ部３０の詳細構造を説明する。
図１８は接合ローラ部３０の内面及び外面の２つのローラ１３，１４を拡大して示すとともに、これらのローラ１３，１４と帯状部材１００との対応関係を示す。図示されるように、本実施例ではこれらのローラ１３，１４は帯状部材１００の複数（本実施例では３）スパンにわたって配される。また、Ｈは帯状部材１００相互の最初の閉合部を示す。
接合機構部１５はこの最初の閉合部Ｈに対応して配される。従って、この接合機構部１５の前方の案内ロール１２（１２ｂ）は帯状部材１００の１スパン分だけ短くされ、帯状部材１００の引込みを可能とする。
内面ローラ１３は円筒状をなし、帯状部材１００の内面に密着し、閉合部Ｈを含め、外面ローラ１４をもって外方から押圧される帯状部材１００を支持する。なお、内面ローラ１３の前端部には拡径部１３ａが形成され、かつ該拡径部１３ａに帯状部材１００の内面の溝１１０に係合する鍔１３ｂが突設されるものであるが、これらは適宜省略されうる。
外面ローラ１４は円筒本体３５に所定間隔をもって複数の輪状鍔部３６が形成されてなり、これらの輪状鍔部３６は帯状部材１００の突条１０２間の溝１０４に嵌まり込む。また、円筒本体３５の外周は帯状部材１００の突条１０２の外面に圧接される。該円筒本体３５の外面にはローレット加工が施され、帯状部材１００との滑りを防ぐ。また、その一部３５ａは小径にされ、突条１０２から外れる。
輪状鍔部３６に付き、閉合部Ｈに対応する２個一対の輪状鍔部３６ａはその周側部が帯状部材１００に当接する。他の輪状鍔部３６については格別当接する必要はなく、突条１０２間の溝１０４に嵌まり込むことが肝要である。
なお、図１８の対応は帯状部材１３０に付いても本質的な差異はない。
【００２４】
（箱体３２）
箱体３２は、図１６・図１７に示されるように、上部分３２Ａと下部分３２Ｂとに分かれ、上部分３２Ａはピン軸３８回りに開放可能とされ、閉合装置３９をもって上部分３２Ａを下部分３２Ｂへ閉合する。
箱体３２は上下部分３２Ａ，３２Ｂにわたってその前後面により歯車機構３１の軸部の保持をなす。また、箱体３２の下部分３２Ｂにおいて、前面部は油圧モータ３３の取付け部に供され、後面部は成形フレーム１１の取付け部のリンク体に取り付けられる。
箱体３２の他の側面には上部分３２Ａを下部分３２Ｂへ閉合する閉合装置３９が取り付けられる。図示するものはその一例であって、上部分３２Ａから突設されたリブ４１に連結棒４２が枢着され、また、下部分３２Ｂにはリブ４１と同位相で二又状の受棚４３が突設され、連結棒４２はこの受棚４３の凹部に入り込む。連結棒４２にはコイルばね４４及びその下部のねじ部に螺合するナット４５が順次装着され、ナット４５の締込みをもってコイルばね４４を受棚４３の下面に押し付けるようにされている。これにより、コイルばね４４の弾性により上部分３２Ａの締付け力が適宜に調整される。
【００２５】
（歯車機構３１）
歯車機構３１は、図１７に示されるように、箱体３２の前後壁にわたって下方より順次、回転自在に架け渡された３つの軸部４７，４８，４９を有し、各軸部４７，４８，４９に歯車５０，５１，５２が固設される。そして、第２の軸部４８には内面ローラ１３が連結され、第３の軸部４９には外面ローラ１４が連結される。図示されるように、第１の軸部４７の回転に対して第２軸部４８は逆方向に、第３軸部４９は順方向に回転し、ひいては内面ローラ１３と外面ローラ１４とは互いに逆回転となる。更に、第３の軸部４９に間隔保持用のスペーサローラ５４が回転自在に取り付けられる。該スペーサローラ５４は後記する送りローラと実質的に同径（小径を含む）とされ、その外周を管渠Ｐの内壁面に当接する。なお、該スペーサローラ５４は適宜省略されうる。
【００２６】
（送りローラ機構１８）
送りローラ機構１８は、箱体３２の外部において第２の軸部４８に固設される駆動スプロケット５６、第３の軸部４９に回転自在に装着されるスプロケット付き送りローラ５７（５７ａはその送りローラ部、５７ｂはそのスプロケット部）及びチェーン５８からなる。もっと詳しくは、駆動スプロケット５６は、その外周に歯車歯５６ａを有し、キーを介して、もしくはスプライン係合をもって第２の軸部４８に固定され、該軸部４８と一体に回転する。
スプロケット付き送りローラ５７は、小径部のスプロケット部５７ｂと大径部の送りローラ部５７ａとからなり、軸受を介して第３の軸部４９に回転自在に装着される。スプロケット部５７ｂはその外周に歯車歯を有する。送りローラ部５７ａは、本実施形態では鋼製素材よりなるが、適宜、その外周に帯状の弾性輪（図示せず）を装着されうる。
チェーン５８は、駆動スプロケット５６とスプロケット付き送りローラ５７のスプロケット部５７ｂとに巻き掛けられ、駆動スプロケット５６の駆動力をスプロケット付き送りローラ５７に伝達する。
しかして、送りローラ５７の回転は管渠Ｐの管壁に当接し、その回転をもって本装置Ｓの回転速度を決める。
【００２７】
本送りローラ機構１８とスペーサローラ５４との関係に付いては、本実施の形態においては両者は併設されたものであるが、どちらか一方を省略してもよく、更には、送りローラ５７の駆動系を省いて該送りローラ５７にスペーサローラの機能を持たせることもできる。
【００２８】
（油圧モータ３３）
油圧モータ３３は、その駆動軸３３ａを第１の軸部４７に連結して箱体３２の前面に取り付けられる。
該油圧モータ３３には、該油圧モータ３３に油を送るイン側配管６０ａと、該油圧モータ３３から油を排出するアウト側配管６０ｂとが接続される。更に、これらの配管６０は、箱体３２あるいは成形フレーム１１の適宜位置に取り付けられる回転継手６１（図９参照）に接続され、該回転継手６１には外部の圧力源に連なる配管６２が接続される。
この回転継手６１を介することにより、回転動作を伴う油圧モータ３３側の配管６０と、回転動作のない外部側配管６２との間の作動流体の授受をなす。
この歯車機構３１・油圧モータ３３により、油圧モータ３３の駆動力は第１の軸部４７に伝達され、かつ、歯車機構３１を介して第２・第３の軸部４８，４９に伝達される。第２軸部４８と第３軸部４９とは互いに逆回転となる。
【００２９】
この接合機構部１５のライニング管Ｒへの取付けは、箱体３２の上部分３２Ａを開放し、外面ローラ１４の輪状鍔部３６を帯状部材１００の突条１０２のピッチに合致させ、かつ、閉合部Ｈに輪状鍔部３６ａを位置させ、しかる後、上部分３２Ａを下部分３２Ｂに閉合し、閉合装置３９を閉鎖し、そのナット４５を締め込んでなす。
【００３０】
規制フレーム１６
規制フレーム１６は、鋼製よりなり、大きな剛性をもって全体形状が矩形をなす。本実施形態では中空の溝６４を有する型鋼が使用され、該溝６４は外方に向けて開口する。なお、該規制フレーム１６は分割体をもって組み立てられる。
【００３１】
案内子１７
案内子１７は成形フレーム１１と規制フレーム１６とに介装され、成形フレーム１１の移動を規制フレーム１６の軌道に従って案内する。
もっと詳しくは、該案内子１７は２叉状をなす本体の両端において成形フレーム１１の軸部２５に枢着される軸受け６６を有し、本体の中央部よりローラ保持体６７が外方へ向けて延設され、該ローラ保持体６７には両側にローラ６８を取り付けた回転軸６９を回転自在に保持する。
そして、このローラ６８は規制フレーム１６の溝６４内に装着され、その内壁に沿って移動する。
【００３２】
以上の構成により、案内ローラ１２及び接合機構部１５を組み付けた成形フレーム１１は、管断面に対し同一位相を保つ規制フレーム１６の形状に沿って進行する。
【００３３】
工程３（製管装置Ｓの施工補助装置Ｈへの組付け）
本製管装置Ｓを次のようにして施工補助装置Ｈへ組み付ける。
製管装置Ｓの搬入は、その規制フレーム１６、成形フレーム１１等の個々の構成部材を分解して人孔Ｑ１を介して管渠Ｐ内への運び込まれる。先ず、規制フレーム１６を組み立て、案内ローラ１２を保持した成形フレーム１１を案内子１７を介して規制フレーム１６に組み付け、規制フレーム１６に対応する形状（矩形形状）を保形し、この組付け体を施工補助装置Ｈの前面より本体部１内へ嵌め込む。すなわち、各案内ローラ１２は本体部１の内面に当接する。このとき、接合機構部１５が本体部１の上辺部１ａ、更には前部凸条６の存する部分に位置するように配する。そして、外面ローラ１４の輪状鍔部３６が前部凸条６及び後部凸条７の間隔部に嵌まり込むように装着する。あるいは、前部凸条６及び又は後部凸条７の側面に当接するように設置する。これにより、接合機構部１５の位置決めがなされる。
同時に、接合機構部１５の油圧系に、地上部にある油圧駆動源Ｇから人孔Ｑ２を介して導入される外部配管６２を接合する。
【００３４】
工程４（帯状部材１００の連結）
地上部に用意された帯状部材１００を人孔Ｑ１を介して、本施工補助装置Ｈの内部を通して、かつ製管機Ｓの規制フレーム１６の枠体を潜らせて、本施工補助装置Ｈの本体部１の切欠き凹部５に導びき、該帯状部材１００の先端面を切欠き凹部５に当接させ、帯状部材１００の先端穴１００ａと切欠き凹部５の穴８とを針金で固定する（図５参照）。
帯状部材１００は地上部に配された巻出し装置Ｔより順次供給される。該巻出し装置Ｔは、図１にその構成の一例を示すように、人孔Ｑ１の開口部周りに配された円形軌状２００上に転子２０２を介して回転台２０４が回転自在に配備され、この回転台２０４に帯状部材１００を繰出し自在に巻き付けた巻胴２０６が回転自在に支持されてなる。これにより、円形軌条２００に沿う回転台２０４の水平面での回転と巻胴２０６の鉛直面での回転とが合成される。
製管動作に伴い帯状部材１００はねじれ回転をなすが、巻出し装置Ｔにおいてはこの回転に同期して回転台２０４をもってこれに追従する。
【００３５】
工程５（初期ライニング管の駆動）
製管装置Ｓの接合機構部１５を駆動すると、共に回転する接合機構部１５の内外面ローラ１３，１４は施工補助装置Ｈの本体部１を挟着して回転し、その回転反力により成形フレーム１１の全体が移動を起こす。施工補助装置Ｈの本体部１は剛性を保持するものであるので、接合機構部１５の内外面ローラ１３，１４の回転反力を確実に受け、製管装置Ｓの移動は円滑になされる。接合機構部１５の内外面ローラ１３，１４が切欠き凹部５を通過して帯状部材１００に移動すると、外面ローラ１４の輪状鍔部は帯状部材１００の溝部１０４に嵌まり込み、かつ、内外面ローラ１３，１４は帯状部材１００と本体部１とに跨がって配されたものとなっているので、帯状部材１００は内外面ローラ１３，１４に挟着された状態で所定状態を保持する。
しかる後、製管装置Ｓの接合機構部１５が施工補助装置Ｈの本体部１の第１番目の角部に至ると、成形フレーム１１は規制フレーム１６の規制を受けて曲げ移動を起こし、かつ、その外面ローラ１４も施工補助装置Ｈの本体部１の後部凸条７に係合されたものとなっているので、曲げ移動は更に円滑になされ、帯状部材１００の曲げ変形がなされる。
以下、接合機構部１５は側辺部１ｃ、下辺部１ｂ、他の側辺部１ｄへと移動し、かつ、同様にして第２番目、第３番目、第４番目の角部で帯条部材１００の曲げ変形がなされ帯状部材１００は閉合して矩形形状となる。この移動は、施工用補助装置Ｈの本体部１の前縁に沿う移動となり、螺旋軌跡を採る。従って、帯状部材１００の後端は本体部１の前端と常時接した状態で捲回される。
【００３６】
第４番目の角部を曲がって再び上辺部１ａに至り、切欠き凹部５の対応位置に達し、１周目が完了すると、先の帯状部材１００と２周目の帯状部材１００とは互いの前後縁の継手構造をもって、内外面ローラ１３，１４の挟着接合作用により接合され、螺旋状に捲回される。
以下、製管装置Ｓにより、２周目より複数回捲回され、ライニング管Ｒが製管され、一定長のライニング管（これを初期ライニング管という）Ｒ０に達すると一旦製管動作が停止される。この初期ライニング管Ｒ０はそれ自体の剛性で製管装置Ｓの回転反力を受けることができる。
【００３７】
工程６（施工用補助装置Ｈの撤去）
施工用補助装置Ｈの切欠き凹部５において、帯状部材１００と本体部１との係合が解除される。しかる後、施工用補助装置Ｈが分解されて人孔Ｑ１を介して地上部へ撤去される。初期ライニング管Ｒ０を製管装置Ｓを組み付けたまま管渠Ｐの始点に移動する。
【００３８】
工程７（ライニング管Ｒの施工）
再び、製管装置Ｓによるライニング管Ｒの製管作業が継続される。この場合、再開に当たり、格別の補助作業を要せず、定常の作業でなされる。
【００３９】
工程８（裏込め材の充填）
管渠Ｐの全長にライニング管Ｒが施工されると、管渠Ｐとライニング管Ｒとの間隙に裏込め用としてセメントミルクＭが充填され、その固結を待って本ライニング施工工事は完了する。
【００４０】
叙上の工程では、途中、本施工用補助装置Ｈをライニング管Ｒから取り外し、撤去する方法を採ったが（工程６）、本施工用補助装置Ｈを取り外さないまま、充填モルタルとともにの埋め殺す態様を採ることもできる。
叙上の製管装置Ｓは規制フレームを有するものの一態様を示したまでで、他の構造のものを除外するものではない。
【００４１】
本実施形態のライニング施工方法によれば、その施工用補助装置Ｈを使用することにより、ライニング施工の初期工程の困難さの要因となっている製管機Ｓの初期装着作業を容易になすことができ、熟練度を要することなく、初期施工を行うことができる。これにより、施工時間の短縮をなし、かつ施工効率の大幅な向上を達成することができる。また、本施工用補助装置Ｈには、凸条６，７が製管装置Ｓの接合機構部１５の外面ローラ１４に係合し、外面ローラ１４の案内となり、円滑に製管装置Ｓを駆動することができる。
また、本施工用補助装置Ｈを取り外す態様を採る場合には、本施工用補助装置Ｈを再度使用することができ、経済的である。
【００４２】
本実施形態では、矩形状の管渠Ｐに付いてのものであるが、他の形状に付いても適用可能である。すなわち、馬蹄形状の管渠に対して、規制フレーム１６を馬蹄形状とすることにより、馬蹄形のライニング管Ｒが得られる。
【００４３】
（第２実施形態）
叙上の実施形態では、矩形断面並びに馬蹄形断面のいわゆる異形断面形状のライニング管の施工方法を示したが、円形断面のライニング管への適用を除外するものではない。この場合、帯状部材は塑性変形性を有する必要はなく、通常の弾性素材が使用される。すなわち、帯状部材１００，１３０においてその塑性変形材１２０，１２２が除去されたものが使用される。また、製管装置Ｓにおいても規制フレーム１６並びに案内子１７は省略され、成形フレーム１１をそのまま使用できる。この場合、弾性を有する帯状部材により自ずと円形を保持する。あるいは、剛性の円環状の成形フレームを使用してもよい。
この第２実施形態における施工用補助装置は円筒状をなし、適宜分割体をもって組立て・分解可能とされ、その前端部は先の第１実施形態に準じて切欠き凹部を有し、該切欠き凹部を除いて前端面は螺旋曲面を採る。その余の構成は第１実施形態に準じる。
本施工用補助装置を用いて実施されるライニング施工工事の手順は先の第１実施形態に準じてなされる。
【００４４】
本発明は叙上の実施形態に限定されるものではなく、本発明の基本的技術思想の範囲内で種々設計変更が可能である。すなわち、以下の態様は本発明の技術的範囲内に包含される。
1)本施工用補助装置Ｈにおいて、切欠き凹部前部の前部凸条６は省略されうる。2)本施工用補助装置Ｈにおいて、後部凸条７は省略されうる。
3)製管装置Ｓに付き、接合機構部１５の後に更に別の接合機構部を配し、２連式とすることにより曲げ力の増大を図る態様を採ること。
【００４５】
【発明の効果】
本発明の管渠内のライニング施工方法によれば、施工用補助装置を使用することにより、ライニング施工の初期工程の困難さの要因となっている製管機の初期装着作業を容易になすことができ、熟練度を要することなく、初期施工を行うことができる。これにより、施工時間の短縮をなし、かつ施工効率の大幅な向上を達成することができる。
また、本施工用補助装置には、凸条が製管装置の接合機構部の外面ローラに係合し、外面ローラの案内となり、円滑に製管装置を駆動することができる。
更にまた、本施工用補助装置Ｈを取り外す態様を採る場合には、本施工用補助装置を何度でも使用することができ、経済的である。
【図面の簡単な説明】
【図１】本発明の管渠内のライニング施工方法の一実施形態の工事例を示す要領図。
【図２】管渠内に設置した施工補助装置の正面図。
【図３】その縦断面図（図２の３−３線断面図）。
【図４】その上面図（図３の４−４線矢視図）。
【図５】本施工補助装置に帯状部材を取り付けた拡大図。
【図６】図５の６−６線断面図。
【図７】図５の７−７線断面図。
【図８】製管装置を組み込んだ正面図。
【図９】図８の９−９線断面図。
【図１０】成形フレームと規制フレームとの関連を示す部分側面図。
【図１１】図１０の１１−１１線断面図。
【図１２】案内子の斜視図。
【図１３】成形フレームの詳細構造を示す図（図１４の１３方向矢視図）。
【図１４】図１３の１４方向矢視図。
【図１５】接合機構部における成形フレームの構成図。
【図１６】接合機構部の拡大正面図。
【図１７】接合機構部の内部構成図（図１６の１７−１７線断面図）。
【図１８】接合ローラ部の拡大断面図。
【図１９】 (a) 図は帯状部材の一態様を示す断面図。
(b) 図はこの帯状部材相互の接合関係を示す断面図。
【図２０】本発明で使用される帯状部材の他の態様図。
【符号の説明】
Ｈ…施工用補助装置、Ｐ…管渠、Ｒ…ライニング管、Ｓ…製管装置
１…本体部、５…切欠き凹部、６…前部凸条、７…後部凸条、１１…成形フレーム、１２…案内ローラ、１３…内面ローラ、１４…外面ローラ、１５…接合機構部、１６…規制フレーム、１００，１３０…帯状部材、１０４…案内溝[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a pipe lining construction method for constructing a lining layer on the inner surface of an existing pipe tub such as a sewer, and more specifically, to a strip-shaped member made of a long plate-like body. The belt-like member is spirally wound with a joining mechanism portion composed of a roller body attached to a molding frame that moves around the restriction frame under the restriction of the restriction frame to form a tubular body, a so-called lining pipe, The present invention relates to a pipe lining construction method for carrying out lining construction by forming the lining pipe forwardly and a construction auxiliary device used in the method. In this case, the belt-like member is imparted with plastic deformability and is formed in a free cross section such as a shape corresponding to the restriction frame, a rectangle, or a horseshoe shape.
[0002]
[Prior art]
  A lining construction method for this type of pipe is known in Japanese Patent Laid-Open No. 8-261363 (hereinafter referred to as prior art).
  That is, according to the prior art, a regulation frame similar to the formed lining pipe is provided for the elongated belt-shaped member having plastic deformability, and the outer roller and the inner surface are formed on the molding frame that moves around the regulation frame. A joining mechanism portion composed of a roller is attached, and the belt-like member is spirally wound with a sandwiching and joining action of the joining mechanism portion to form a lining tube, and the lining tube is formed forwardly in the tube tub to form a tube. The lining construction will be carried out. In addition, a lining pipe manufacturing apparatus is comprised with a control frame and a shaping | molding flame | frame.
[0003]
  By the way, in the lining construction to the underground underground pipe of this prior art, at the start of the lining construction, the pipe making apparatus disassembled from the human hole is brought into the pipe, and then the lining pipe making apparatus is assembled, and then the above-ground part The belt-like member is pulled in and assembled to this pipe making apparatus to form a so-called starting lining pipe. The assembly of the starting lining pipe is performed mainly by hand, and is performed by being wound several times around the forming frame of the pipe making apparatus, particularly about three times. Thereafter, the starting lining pipe is fixed to the pipe rod until the starting lining pipe has a predetermined rigidity, and the pipe making operation is continued.
  When the lining pipe has a certain length, it can receive the rotational reaction force of the pipe making apparatus with its own rigidity, and thereafter, it becomes a normal pipe making operation.
  Therefore, in this initial work, the formation of the starting lining pipe requires extremely skill and manpower, and also requires a predetermined length to obtain its rigidity, resulting in laborious construction. It has become a bottleneck in construction.
[0004]
[Problems to be solved by the invention]
  In view of the above circumstances, the present invention has been made in order to improve the initial process of forming a starting lining pipe that has become a bottleneck in the construction of the prior art. An object of the present invention is to provide a pipe lining construction method that can be easily constructed without necessity, can eliminate complicated manual work, and can improve the efficiency of construction.
  For this reason, the present invention aims to solve this problem by using a new construction auxiliary device.
  Therefore, the present invention also provides this new construction auxiliary device.
[0005]
[Means for Solving the Problems]
  Specifically, the lining construction method and the construction auxiliary device in the pipe rod of the present invention adopt the following configuration.
  That is, the first invention relates to a lining construction method in a pipe rod, and as described in claim 1, in the pipe rod, joints are formed at both side edges and continuously supplied with plastic deformability. The long strip-shaped member formed is spirally wound, the tubular lining pipe formed by joining the joints that are in contact with each other is left, and the strip-shaped pipe that is newly supplied in front of the already formed lining pipe A method of additionally forming an additional lining pipe with a member, wherein the bending section has a joining mechanism portion that is controlled by a restriction frame and moves to the front end portion of the already formed lining pipe and includes an inner surface roller and an outer surface roller. A flexible molding frame is arranged, and the additional lining pipe is formed by a sandwiching and joining function between the inner roller and the outer roller,LiningIn the method of constructing the lining, when the construction of the lining starts,According to the prescribed cross sectionHaving a cross-sectional shape,A construction auxiliary device having a pre-made tubular body having a predetermined rigidity and having a connecting portion of the belt-shaped member at the front edge is used, and the construction auxiliary device has a tubular body in the tubular body.The inner frame and the outer roller mounted on the tubular frame are clamped and held on the tubular body, and the inner and outer rollers are moved and extended.Via the connecting partA lining pipe is formed by connecting strip members.
  This construction method corresponds to the following first embodiment.
  In the above configuration, the forming frame includes a guide roller that directly contacts the inner surface of the lining pipe on the outer periphery thereof and defines the shape of the lining pipe.
  In this method, the tubular body adopts a mode in which it is removed when the lining tube reaches a certain length, or a mode in which it is left as it is.
(Function)
  A tubular body as a construction auxiliary device is installed at the starting point of the pipe rod to be lined.
  Next, a pipe making apparatus including a regulation frame and a molding frame is assembled to the front portion of the tubular body, the inner surface roller and the outer surface roller of the joining mechanism portion attached to the molding frame are sandwiched between the tubular body, and the tubular body The belt-like member is connected and fixed to the joint without any step.
  As the joining mechanism is driven, the inner and outer rollers rotate together, and the reaction force causes the entire forming frame to move. The rigid tubular body reliably receives the rotational reaction force of the inner and outer surface rollers of the joining mechanism portion, and the molding frame can be moved smoothly. The inner and outer surface rollers pass through the joint and move to the band member, and the inner and outer surface rollers move on a predetermined track according to the tubular body and the restriction frame, and bend the band member at each corner. This movement is a movement along the front edge of the tubular body of the construction auxiliary device, and takes a spiral trajectory.
  When the first round is completed, the first belt-like member and the second belt-like member have a joint structure of the front and rear edges of each other, and are joined and wound spirally by the sandwiching action of the inner and outer rollers. .
  Thereafter, it is wound a plurality of times from the second round, and a fixed-length lining pipe is produced. In this state, the tubular body is removed, and the piped lining pipe is moved to the starting point of the pipe rod.
  The pipe making operation is performed again, and a belt-like member is wound around the guide roller of the forming frame in a spiral manner to form a lining pipe. At this time, the movement of the molding frame is restricted by the restriction frame and moves along the shape of the restriction frame, and the plastically deformable belt-like member is given bending force at the corners. The main pipe lining construction device forms a lining pipe while rotating with the molding frame.
[0006]
  The second invention relates to a construction auxiliary device used in the lining construction method in the pipe casing, and according to claim 2, in the pipe casing, joints are formed on both side edges and continuously supplied. A long belt-like member provided with plastic deformability is spirally wound to leave a tubular lining pipe formed by joining adjacent joints, and the front of the already formed lining pipe An additional lining pipe is additionally formed with a belt-like member to be newly supplied to the front end portion of the already formed lining pipe, and a joining mechanism portion which is regulated by the regulating frame and moves and is composed of an inner roller and an outer roller. A flexible forming frame having the inner surface roller and the outer surface roller is formed to form the additional lining pipe, and running is performed in the pipe rod. The apparatus is used in a method, and the molding frame is accommodated in an inscribed manner, and the inner surface roller and the outer surface roller mounted on the molding frame are sandwiched and held at the front edge of the molding frame. And a connecting portion to which the belt-like member is connected in a contact manner is formed on the movement extension of the inner roller and the outer roller.
  The auxiliary device for construction corresponds to the following first embodiment.
  In the above configuration, the forming frame includes a guide roller that directly contacts the inner surface of the lining pipe on the outer periphery thereof and defines the shape of the lining pipe.
  Further, it is an optional matter to be appropriately made that the outer surface of the tubular body is formed with a protrusion for guiding the outer surface roller, and that the tubular body is made of a divided body.
[0007]
  A third invention relates to a lining construction method in another pipe rod, and as described in claim 5, in the pipe rod, a long belt-like member that is continuously supplied with joints formed on both side edges. The tubular lining pipe formed by joining the joints that are in contact with each other is left behind, and an additional lining pipe is added with a belt-like member newly supplied in front of the already formed lining pipe. A forming frame having a joining mechanism part composed of an inner surface roller and an outer surface roller is disposed at a front end portion of the already formed lining pipe, and the inner surface roller and the outer surface roller are sandwiched and joined. The additional lining pipe is formed according to the function,LiningAt the start of the lining construction,According to the prescribed cross sectionWhile making a circular cross sectionA construction auxiliary device having a pre-made tubular body having a predetermined rigidity and having a connecting portion of the belt-shaped member at the front edge is used, and the construction auxiliary device has a tubular body in the tubular body.The inner frame and the outer roller mounted on the tubular frame are clamped and held on the tubular body, and the inner and outer rollers are moved and extended.Via the connecting partA lining pipe is formed by connecting strip members.
  This construction method corresponds to the following second embodiment.
  In the above configuration, the forming frame includes a guide roller that directly contacts the inner surface of the lining pipe on the outer periphery thereof and defines the shape of the lining pipe.
  In this method, the tubular body adopts a mode in which it is removed when the lining tube reaches a certain length, or a mode in which it is left as it is.
  The belt-shaped member may be either elastic or plastically deformable.
  Either a rigid frame or a flexible frame is applied. In the case of having flexibility, internal folding is prevented.
(Function)
  A circular tubular body is installed as a construction auxiliary device at the starting point of the pipe rod to be lined.
  Next, an inner surface roller and an outer surface roller of a joining mechanism part attached to the front part of the tubular body by assembling a pipe forming device made of a flexible molding frame which is formed in an annular shape or prevented from being bent internally, to the front part of the tubular body Are sandwiched between the tubular bodies, and a belt-like member is connected and fixed to the joint portion of the tubular bodies.
  As the joining mechanism is driven, the inner and outer rollers rotate together, and the reaction force causes the entire forming frame to move.
The rigid tubular body reliably receives the rotational reaction force of the inner and outer surface rollers of the joining mechanism portion, and the molding frame can be moved smoothly.
The inner and outer surface rollers pass through the joint and move to the belt-like member, and the inner and outer surface rollers move on a predetermined track according to the forming frame to bend the belt-like member. This movement is a movement along the front edge of the tubular body of the construction auxiliary device, and takes a spiral trajectory.
  When the first round is completed, the previous belt-like member and the second belt-like member have a joint structure of the front and rear edges of each other, and are joined by the sandwiching and joining action of the inner and outer surface rollers, and are wound spirally.
  Thereafter, it is wound a plurality of times from the second round, and a fixed-length lining pipe is produced. Thereafter, a normal pipe making operation is performed, and a belt-like member is spirally wound around the guide roller of the forming frame to form a lining pipe.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
  DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a lining construction method and a construction auxiliary device for pipes according to the present invention will be described with reference to the drawings.
(First embodiment)
  FIGS. 1-18 shows one Embodiment (1st Embodiment) of the lining construction method in the pipe rod of this invention. In the present embodiment, an example of application to a sewer pipe P having a rectangular cross-section embedded in the underground as a pipe is shown. Therefore, the lining R is applied to the inner surface of the sewer pipe rod P with the auxiliary device H for main construction and the pipe making device S.
  FIG. 1 shows an outline of the lining construction work. 2-7 shows the structure of each part of the auxiliary apparatus H for construction, and FIGS. 8-18 show the structure of each part of the pipe making apparatus S. Moreover, FIGS. 19-20 shows the one aspect | mode of a strip | belt-shaped member.
  In these drawings, the traveling direction of the pipe making apparatus S (arrow A) is defined as a front part and a rear part.
[0009]
Strip members 100 and 130
  FIG. 19 shows an example of a belt-like member used in the lining construction method of this embodiment.
  The band-shaped member 100 has a flat plate shape with a constant thickness, and an appropriate number (5 in the illustrated example, usually 3) of protrusions 102 are continuously provided vertically in the longitudinal direction of the outer surface. A flange 102 a is formed at the tip of the protrusion 102. A groove 104 or a groove space is formed between the protrusions 102. The inner surface 106 is formed to be substantially smooth.
  On both sides of the belt-like member 100, joint portions 100A and 100B are formed that are overlapped with each other inside and outside. That is, in the front edge side joint portion 100A, the base portion of the protrusion 102A at the front end is expanded, the concave groove 110 is provided vertically from the inner surface side, and the overhang portion 112 is further provided continuously from the protrusion 102A. The rear edge side joint portion 100B is provided with an overhang portion 114 extending from the protrusion 102B at the rear end portion, and a protrusion 116 that engages with the groove 110 of the front edge side joint portion 100A is vertically disposed near the end portion of the overhang portion 114. Established.
  In the belt-like member 100, a plastic deformation material 120 as a plastic deformation functional material having a W-shaped cross section made of metal (usually steel) is mounted between intermediate protrusions 102. The plastic deformable material 120 is not limited to the position shown in the figure, and may be at other positions or at a plurality of locations, and a V shape, a U shape, or the like is adopted as the shape.
  At the time of joining, the front edge portion and the rear edge portion of the adjacent belt-like members 100 overlap each other, and the outer surface roller and the inner surface roller of the joining roller portion described later by the rear edge side joint portion 100B overlap the front edge side joint portion 100A. In response, the ridge 116 is fitted into the groove 110, and the end of the protruding portion 112 is fitted into the flange 102a of the ridge 102B, and joined. In this case, the main engagement is made by the concave groove 110 and the convex stripe 116, and the overhanging portion 112 and the protrusion 102B make a secondary engagement. Therefore, in some cases, the secondary engagement can be omitted. .
  Furthermore, in this embodiment, the sealing material 118 is interposed in the contact part of the overhang | projection parts 112 and 114, and bondability is improved. Note that the sealing material 118 can be omitted if the fitting engagement at the joints 100A and 100B is sufficient.
  The belt-shaped member is made of a synthetic resin material, and in particular, from the viewpoint of moldability, a vinyl chloride (PVC) resin that can be continuously formed by extrusion is suitable. However, it does not prevent metal molding.
[0010]
  FIG. 20 shows another embodiment of the belt-shaped member.
  The belt-shaped member 130 is formed with an appropriate number of trapezoidal ridges 132 continuously in the longitudinal direction of the outer surface, and the valleys 134 are formed between the ridges 132. The ridges 132 and the troughs 134 form an equal pitch in the width direction. The inner surface 136 is formed to be substantially smooth. On both sides of the belt-like member 130, joint portions 130A and 130B that are overlapped and engaged with each other are formed.
  In the strip member 130, a plastic deformation material 122 as a wire is embedded in the ridge 132.
  At the time of joining, the inner joint part 130B is pressed against the outer joint part 130A by the outer surface roller and the inner surface roller of the joining roller part, and the corresponding engagement portion, that is, the round groove and the round ridge, are also cut and recessed. The groove and the end portion of the overhanging portion are fitted and joined.
[0011]
Lining construction
  FIG. 1 shows an outline of the main lining construction work. A lining R is applied to the inner surface of a sewer pipe P buried in the ground with the auxiliary equipment H for main construction and the pipe making equipment S. Q1 is an upstream manhole, Q2 is a downstream manhole, and construction is performed from the upstream side toward the downstream side.
  In the ground part, the unwinding device T with a turntable around which the belt-like member 100 is wound is arranged on the upstream side human hole Q1 side, and the hydraulic drive source G connected to the pipe making device S on the downstream side human hole Q2 side. Is arranged.
[0012]
Auxiliary equipment for construction H(See Figs. 2-7)
  The construction auxiliary device H has a main body portion 1 having a substantially rectangular cross-sectional tubular body with a curvature at the corners from the upper side portion 1a, the lower side portion 1b, and the left and right side portions 1c, 1d. The cross section coincides with the cross section of the lining pipe R to be formed, and retains a predetermined rigidity and weight and a predetermined length. In principle, the thickness of the main body 1 matches the thickness of the main body of the belt-like member, but it may be thin and a slight thickness is allowed. The main body 1 is composed of an appropriate number (4 in the present embodiment) of divided bodies 1A, 1B, 1C, and 1D that are divided in parallel with the axial direction, and each of the divided bodies 1A, 1B, 1C, and 1D The flanges 2 projecting toward each other are brought into contact with each other and assembled with fasteners 3 (bolts and nuts).
[0013]
  The main body 1 is usually formed with a metal such as steel or aluminum, but does not exclude other materials. For example, the main body 1 is formed with a synthetic resin, particularly a fiber reinforced synthetic resin (FRP). In these, it is important to have sufficient rigidity to maintain the shape even when a load is applied. Therefore, some elasticity is allowed. When the weight is insufficient, another weight body is added or a stopper is arranged so that the weight is not easily deformed or displaced.
[0014]
  A notch recess 5 is formed at the front end of the upper side 1a of the main body 1 to receive the belt-like member 100 and to which the belt-like member 100 is fixed. The front end portion of the main body 1 is continuously connected except for the notch recess 5.
  Facing the notch recess 5, that is, on the front surface of the notch recess 5, at least two rows or more of the front protrusions 6 are vertically provided on the upper surface of the main body 1 over a certain length with a predetermined interval. Furthermore, rear ridges 7 are provided vertically along the ridges 6. Although the rear ridge 7 is formed only on the upper side 1a in the drawing, it may be formed so as to go around the main body 1 once.
  The distance between the front and rear ridges 6 and 7 corresponds to the distance between the flanges on the outer surface roller of the joining roller portion of the pipe making apparatus S described later.
  Further, a small-diameter hole 8 is formed facing this notch recess 5.
[0015]
  A band-shaped member 100 is attached to the notch recess 5.
  That is, as shown in FIG. 5, the end surface of the band-shaped member 100 drawn from the ground is brought into contact with the end surface of the notch recess 5, and the hole 100 a previously formed in the band-shaped member 100 and the hole 8 of the notch recess 5. Are fixed with a wire (wire). According to this fixing, the belt-like member 100 can be detached from the auxiliary device H later.
  Since the thickness of the main body 1 and the belt-like member 100 coincide with each other, they are continuously connected without a step. When the thickness of the main body 1 is larger than the band-shaped member 100, grooves are formed instead of the convex shapes 6 and 7 of the main body 1, and the convex shapes 6 and 7 are formed between the grooves.
  This joining is not limited to the above embodiment. An abutting connection with an adhesive may also be used. Moreover, you may make it join in a one-touch type | mold through a joining tool.
[0016]
  In the construction auxiliary device H, various aspects are made.
1) Attaching / retracting fixtures (not shown) that are pressed against the wall surface of the pipe rod P near the rear part of the main body 1 are attached radially over one or more. The fixture is made of, for example, a screw body such as a bolt. The screw body screwed into a screw portion such as a nut fixed to the main body 1 is rotated to advance outward of the main body 1, and Press against the wall. By this fixing tool, fixing of the auxiliary device H for the construction is more sure, and wobble is eliminated. The rigidity of the auxiliary device H for construction is supplemented.
[0017]
  Hereinafter, the steps will be described in the order of steps.
Process 1(Installation of auxiliary equipment for construction H)
  The construction auxiliary device H is disposed at the entrance of the pipe rod P and is installed via the support base I. That is, the main body portion 1 of the auxiliary device for construction H has its side portions 1a, 1b, 1c, and 1d spaced apart from the inner surface of the pipe rod P. The support base I may be omitted in some cases.
[0018]
Process 2(Preparation of pipe making apparatus S)
  After that, the pipe making apparatus S is carried into the main pipe rod P and assembled at a predetermined position and in a predetermined state of the main construction auxiliary apparatus H.
  The pipe making apparatus S of the present embodiment will be described based on FIGS.
Pipe making equipment S(See FIGS. 8 to 18)
  As shown in FIGS. 8 and 9, the pipe making apparatus S includes a forming frame 11 having a predetermined width and having a link mechanism constituted by a plurality of link bodies to form a flexible ring body, and the forming frame 11. A plurality of guide rollers 12 disposed on each shaft portion of the link mechanism, a joining mechanism portion 15 which is attached to the forming frame 11 at a predetermined interval and includes an inner surface roller 13 and an outer surface roller 14, and the forming frame. -It consists of the main part of the control frame 16 which makes | forms the rectangular shape distribute | arranged inside the frame 11, and the guide 17 distribute | arranged ranging over this control frame 16 and the said shaping | molding frame 11. Further, a feed roller mechanism 18 is added to the joining mechanism portion 15.
[0019]
  Hereinafter, the detailed structure of each part will be described.
Molding frame 11(See FIGS. 13 to 15)
  The forming frame 1 is formed into an annular body with a required width, and the whole is flexible in the outer diameter direction by a link mechanism formed by a series of link bodies 20 and has lateral rigidity.
  More specifically, as shown in FIG. 13 and FIG. 14, each link body 20 takes two modes of an outer link body 20A and an inner link body 20B and is arranged alternately.
  The outer link body 20A has an H shape as a whole, and includes a side plate 21 that is parallel to each other and a connecting plate 22 that rigidly connects these at the center. A shaft hole is formed on both sides of the side plate 21.
  The inner link body 20B is assembled from two U-shaped divided bodies 20b and forms an H shape which is the same shape as the outer link body 20A as a whole. That is, the divided body 20b is formed in a U-shape composed of the short side plate 23 and the back plate 24, and the back plates 24 are in contact with each other and rigidly connected by bolts and nuts, and are integrally assembled as an H-shaped body. A circular shaft hole is formed in the short side plate 23 corresponding to the shaft hole of the side plate 21 of the outer link body 20A.
  Thus, the outer link body 20A and the inner link body 20B overlap the side plate 23 of the inner link body 20B on the inner side of the side plate 21 of the outer link body 20A, and align the axial centers of the shaft holes. A link mechanism is constituted by the shaft portion 25 inserted through the shaft.
[0020]
(Anti-breaking mechanism)
  The link bodies 20 can be folded outward with respect to each other at 180 °, but the middle break is prevented. For this reason, an anti-breaking mechanism is provided, and an example is shown in FIG. That is, a stopper recess 27 is provided at the end of the side plate of one link body 20A (I), and the side plate of the other link body 20B (II) projects toward the previous link body 20 (I). The stopper 28 to be provided is fixed, and the stopper 28 is brought into contact with one end surface 27a of the stopper recess 27 to prevent the middle break. Further, the stopper 28 can be folded outward until it comes into contact with the other end surface 27 b of the stopper recess 27. The opening angle (α) of the recess 27 is the swinging width.
[0021]
Guide roller 12(See FIGS. 13 to 15)
  The guide roller 12 is rotatably mounted on each shaft portion 25 of the molding frame 11. The roller body is made of a hard synthetic resin body or metal body, and abuts against the inner surface of the belt-like member 100. The standard guide roller 12 (12a) has a length that is full of the inner width of the link body 20, but the required number (usually 1 to 2) of guide mechanisms 12 (12b) in the front portion of the link mechanism 20 is a belt-like member. It is shifted backward by a width of 100 or shortened (see FIG. 15).
[0022]
Bonding mechanism 15(See FIGS. 16 to 18)
  The joining mechanism portion 15 is attached to the attachment portion of the molding frame 11. The joining mechanism portion 15 includes a feed roller mechanism portion 18.
  The joining mechanism portion 15 is mainly composed of a joining roller portion 30 in which an inner surface roller 13 and an outer surface roller 14 are combined, and a box 32 containing a gear mechanism 31 for synchronously rotating these rollers 13 and 14. And a hydraulic motor 33 that is attached to the box 32 and serves as a rotational drive source for the rollers 13 and 14, and the joining mechanism portion 15 is a joined portion of the belt-like member 100 wound in a spiral manner, that is, the belt-like member 100 is It is arranged corresponding to the first closing position. The inner roller 13 is attached to the shaft portion 25 of the molding frame 11 in the same manner as the guide roller 12.
[0023]
(Joint Roller 30) (See FIGS. 17 and 18)
  The joining roller portion 30 is arranged with a predetermined interval so that the inner roller 13 and the outer roller 14 are aligned with each other in the tube axis direction, and the belt-like member 100 is sandwiched between the rollers 13 and 14. Is done. These rollers 13 and 14 are rotationally driven in conjunction with the drive shaft of the gear mechanism 31.
  Based on FIG. 18, the detailed structure of the joining roller part 30 is demonstrated.
  FIG. 18 shows the two rollers 13 and 14 on the inner and outer surfaces of the joining roller portion 30 in an enlarged manner, and shows the correspondence between these rollers 13 and 14 and the belt-like member 100. As shown in the drawing, in the present embodiment, these rollers 13 and 14 are arranged over a plurality of (three in the present embodiment) spans of the belt-like member 100. H indicates the first closing portion between the strip members 100.
  The joining mechanism part 15 is arranged corresponding to the first closing part H. Accordingly, the guide roll 12 (12b) in front of the joining mechanism portion 15 is shortened by one span of the belt-like member 100, and the belt-like member 100 can be retracted.
  The inner surface roller 13 has a cylindrical shape, is in close contact with the inner surface of the belt-like member 100, and supports the belt-like member 100 that is pressed from the outside by the outer roller 14 including the closing portion H. The inner roller 13 has an enlarged diameter portion 13a at the front end portion, and a flange 13b that engages with the groove 110 on the inner surface of the belt-like member 100 protrudes from the enlarged diameter portion 13a. May be omitted as appropriate.
  The outer surface roller 14 has a plurality of ring-shaped flange portions 36 formed on the cylindrical main body 35 at a predetermined interval, and these ring-shaped flange portions 36 fit into the grooves 104 between the protrusions 102 of the belt-shaped member 100. Further, the outer periphery of the cylindrical main body 35 is in pressure contact with the outer surface of the ridge 102 of the strip member 100. The outer surface of the cylindrical body 35 is knurled to prevent slipping with the belt-like member 100. In addition, a part 35 a thereof has a small diameter and is disengaged from the protrusion 102.
  The pair of two ring-shaped flange portions 36 a corresponding to the closed portion H attached to the ring-shaped flange portion 36 abuts the belt-shaped member 100 at the peripheral side portions. The other ring-shaped flange portion 36 does not need to be in particular contact, and it is important that the other ring-shaped flange portion 36 fits into the groove 104 between the protrusions 102.
  The correspondence in FIG. 18 is not essentially different even when attached to the belt-like member 130.
[0024]
(Box 32)
  The box 32 isAs shown in FIG. 16 and FIG.The upper portion 32A is divided into an upper portion 32A and a lower portion 32B. The upper portion 32A can be opened around the pin shaft 38, and the upper portion 32A is closed to the lower portion 32B by the closing device 39.
  The box 32 holds the shaft portion of the gear mechanism 31 by the front and rear surfaces of the upper and lower portions 32A and 32B. Further, in the lower portion 32 </ b> B of the box body 32, the front surface portion is provided for the attachment portion of the hydraulic motor 33, and the rear surface portion is attached to the link body of the attachment portion of the molding frame 11.
  A closing device 39 for closing the upper portion 32A to the lower portion 32B is attached to the other side surface of the box 32. What is shown is an example, and a connecting rod 42 is pivotally attached to a rib 41 projecting from the upper portion 32A, and a bifurcated receiving shelf 43 is in phase with the rib 41 on the lower portion 32B. Protruding, the connecting rod 42 enters the recess of the receiving shelf 43. The connecting rod 42 is sequentially fitted with a coil spring 44 and a nut 45 that is screwed into a threaded portion below the coil spring 44, and the coil spring 44 is pressed against the lower surface of the receiving shelf 43 by tightening the nut 45. Thereby, the tightening force of the upper portion 32 </ b> A is appropriately adjusted by the elasticity of the coil spring 44.
[0025]
(Gear mechanism 31)
  The gear mechanism 31 is, as shown in FIG.The shaft 32 has three shaft portions 47, 48, and 49 that are rotatably spanned sequentially from the lower side to the front and rear walls, and gears 50, 51, and 52 are fixed to the shaft portions 47, 48, and 49, respectively. The The inner roller 13 is connected to the second shaft portion 48, and the outer roller 14 is connected to the third shaft portion 49. As shown in the figure, the second shaft portion 48 rotates in the reverse direction and the third shaft portion 49 rotates in the forward direction with respect to the rotation of the first shaft portion 47, so that the inner roller 13 and the outer roller 14 are mutually connected. Reverse rotation. Further, a spacer roller 54 for maintaining a space is rotatably attached to the third shaft portion 49. The spacer roller 54 has substantially the same diameter (including a small diameter) as a feed roller, which will be described later, and the outer periphery thereof abuts against the inner wall surface of the pipe rod P. The spacer roller 54 can be omitted as appropriate.
[0026]
(Feeding roller mechanism 18)
  The feed roller mechanism 18 includes a drive sprocket 56 fixed to the second shaft portion 48 outside the box 32 and a sprocket-equipped feed roller 57 (57a is the feed shaft) rotatably attached to the third shaft portion 49. The roller portion 57b is composed of a sprocket portion) and a chain 58. More specifically, the drive sprocket 56 has gear teeth 56 a on the outer periphery thereof, and is fixed to the second shaft portion 48 through a key or with spline engagement, and rotates integrally with the shaft portion 48.
  The feed roller 57 with sprocket includes a small-diameter sprocket portion 57b and a large-diameter feed roller portion 57a, and is rotatably mounted on the third shaft portion 49 via a bearing. The sprocket portion 57b has gear teeth on its outer periphery. The feed roller portion 57a is made of a steel material in the present embodiment, but a belt-like elastic ring (not shown) can be appropriately mounted on the outer periphery thereof.
  The chain 58 is wound around the drive sprocket 56 and the sprocket portion 57 b of the feed roller 57 with sprocket, and transmits the driving force of the drive sprocket 56 to the feed roller 57 with sprocket.
  Accordingly, the rotation of the feed roller 57 contacts the tube wall of the tube rod P, and the rotation speed of the apparatus S is determined by the rotation.
[0027]
  Regarding the relationship between the feed roller mechanism 18 and the spacer roller 54, in the present embodiment, both are provided side by side, but either one may be omitted, and further, the feed roller 57 It is also possible to omit the drive system and make the feed roller 57 have the function of a spacer roller.
[0028]
(Hydraulic motor 33)
  The hydraulic motor 33 is attached to the front surface of the box 32 by connecting the drive shaft 33 a to the first shaft portion 47.
  The hydraulic motor 33 is connected to an in-side pipe 60 a that sends oil to the hydraulic motor 33 and an out-side pipe 60 b that discharges oil from the hydraulic motor 33. Furthermore, these pipes 60 are the box body 32 orMolding frame 11Is connected to a rotary joint 61 (see FIG. 9) attached at an appropriate position. A pipe 62 connected to an external pressure source is connected to the rotary joint 61.
  By passing through the rotary joint 61, the working fluid is exchanged between the piping 60 on the hydraulic motor 33 side that rotates and the external piping 62 that does not rotate.
  The driving force of the hydraulic motor 33 is transmitted to the first shaft portion 47 by the gear mechanism 31 and the hydraulic motor 33, and is transmitted to the second and third shaft portions 48 and 49 via the gear mechanism 31. . The second shaft portion 48 and the third shaft portion 49 rotate in the opposite directions.
[0029]
  The attachment mechanism portion 15 is attached to the lining pipe R by opening the upper portion 32A of the box 32, matching the ring-shaped flange portion 36 of the outer roller 14 with the pitch of the ridges 102 of the belt-like member 100, and closing. The ring-shaped collar portion 36a is positioned in the portion H, and then the upper portion 32A is closed to the lower portion 32B, the closing device 39 is closed, and the nut 45 is tightened.
[0030]
Restriction frame 16
  The restriction frame 16 is made of steel, and has an overall shape of a rectangle with great rigidity. In this embodiment, a steel mold having a hollow groove 64 is used, and the groove 64 opens outward. The restriction frame 16 is assembled with a divided body.
[0031]
Guide 17
  The guide 17 is interposed between the molding frame 11 and the regulation frame 16 and guides the movement of the molding frame 11 according to the path of the regulation frame 16.
  More specifically, the guide 17 has bearings 66 pivotally attached to the shaft portion 25 of the molding frame 11 at both ends of the bifurcated main body, and the roller holder 67 is directed outward from the central portion of the main body. The roller holder 67 holds a rotating shaft 69 having rollers 68 attached to both sides thereof.
  The roller 68 is mounted in the groove 64 of the restriction frame 16 and moves along the inner wall.
[0032]
  With the above configuration, the forming frame 11 assembled with the guide roller 12 and the joining mechanism portion 15 advances along the shape of the restriction frame 16 that maintains the same phase with respect to the pipe cross section.
[0033]
Process 3(Assembly of pipe making device S to construction support device H)
  The pipe making apparatus S is assembled to the construction auxiliary apparatus H as follows.
  The pipe making apparatus S is carried in by disassembling individual components such as the restriction frame 16 and the molding frame 11 and bringing them into the pipe rod P through the manhole Q1. First, the restricting frame 16 is assembled, the molding frame 11 holding the guide roller 12 is assembled to the restricting frame 16 via the guide 17, and the shape (rectangular shape) corresponding to the restricting frame 16 is retained. Is inserted into the main body 1 from the front surface of the construction auxiliary device H. That is, each guide roller 12 contacts the inner surface of the main body 1. At this time, it arrange | positions so that the joining mechanism part 15 may be located in the part which the upper side part 1a of the main-body part 1 and also the front part protruding item | line 6 exist. And it mounts | wears so that the ring-shaped collar part 36 of the outer surface roller 14 may be fitted in the space | interval part of the front protrusion 6 and the rear protrusion 7. FIG. Or it installs so that the front ridge 6 and / or the rear ridge 7 may contact | abut. Thereby, the joining mechanism part 15 is positioned.
  At the same time, the external piping 62 introduced from the hydraulic drive source G in the ground part through the human hole Q2 is joined to the hydraulic system of the joining mechanism part 15.
[0034]
Process 4(Connection of strip member 100)
  The main body of the construction auxiliary device H is provided by passing the belt-like member 100 prepared on the ground part through the human hole Q1 through the inside of the construction auxiliary device H and the frame of the restriction frame 16 of the pipe making machine S. The leading end surface of the strip member 100 is brought into contact with the notch recess 5 and the leading end hole 100a of the strip member 100 and the hole 8 of the notch recess 5 are fixed with a wire ( (See FIG. 5).
  The strip member 100 is sequentially supplied from an unwinding device T arranged on the ground. As shown in FIG. 1, the unwinding device T has a turntable 204 rotatably arranged on a circular rail 200 arranged around the opening of the human hole Q1 via a trochanter 202. Then, a winding drum 206 around which the belt-like member 100 is wound around the turntable 204 is supported rotatably. Thereby, the rotation of the turntable 204 along the circular rail 200 on the horizontal plane and the rotation of the winding drum 206 on the vertical plane are combined.
  The belt-like member 100 is twisted and rotated in accordance with the pipe making operation. In the unwinding device T, the turntable 204 follows this in synchronization with the rotation.
[0035]
Process 5(Initial lining pipe drive)
  When the joining mechanism portion 15 of the pipe making apparatus S is driven, the inner and outer surface rollers 13 and 14 of the joining mechanism portion 15 that rotate together rotate while sandwiching the body portion 1 of the construction assisting device H, and are formed by the rotational reaction force. The entire frame 11 moves. Since the main body portion 1 of the construction assisting device H maintains rigidity, the rotational reaction force of the inner and outer surface rollers 13 and 14 of the joining mechanism portion 15 is reliably received, and the pipe making device S can be moved smoothly. When the inner and outer rollers 13 and 14 of the joining mechanism portion 15 pass through the notch recess 5 and move to the belt-like member 100, the ring-shaped flange portion of the outer roller 14 is fitted into the groove portion 104 of the belt-like member 100, and the inner and outer surfaces Since the rollers 13 and 14 are disposed across the belt-like member 100 and the main body 1, the belt-like member 100 maintains a predetermined state while being sandwiched between the inner and outer rollers 13 and 14. .
  Thereafter, when the joining mechanism portion 15 of the pipe making device S reaches the first corner of the main body portion 1 of the construction assisting device H, the forming frame 11 undergoes bending movement under the restriction of the restriction frame 16, and Since the outer roller 14 is also engaged with the rear ridge 7 of the main body 1 of the construction assisting device H, the bending movement is made smoother and the belt-like member 100 is bent and deformed.
  Hereinafter, the joining mechanism part 15 moves to the side part 1c, the lower part 1b, and the other side part 1d, and in the same manner, the strip member at the second, third, and fourth corners. The belt-shaped member 100 is closed and becomes a rectangular shape. This movement is a movement along the front edge of the main body 1 of the construction auxiliary device H and takes a spiral trajectory. Accordingly, the rear end of the belt-like member 100 is wound in a state where it is always in contact with the front end of the main body 1.
[0036]
  The fourth corner is bent to reach the upper side 1a again, reaches the corresponding position of the notch recess 5, and when the first round is completed, the previous strip member 100 and the second strip member 100 are mutually connected. With the joint structure of the front and rear edges, they are joined by the sandwiching and joining action of the inner and outer surface rollers 13 and 14 and wound spirally.
  Thereafter, the pipe making device S is wound a plurality of times from the second round to produce the lining pipe R, and once the lining pipe R (which is referred to as the initial lining pipe) R0 is reached, the pipe making operation is once stopped. The This initial lining pipe R0 can receive the rotational reaction force of the pipe making apparatus S with its own rigidity.
[0037]
Step 6(Removal of auxiliary equipment for construction H)
  In the notch recess 5 of the construction auxiliary device H, the engagement between the belt-like member 100 and the main body 1 is released. After that, the construction auxiliary device H is disassembled and removed to the ground via the human hole Q1. The initial lining pipe R0 is moved to the starting point of the pipe rod P with the pipe making apparatus S assembled.
[0038]
Step 7(Construction of lining pipe R)
  Again, the pipe making operation of the lining pipe R by the pipe making apparatus S is continued. In this case, when resuming, no special auxiliary work is required, and the work is performed in a steady state.
[0039]
Process 8(Filling backfill material)
  When the lining pipe R is constructed over the entire length of the pipe rod P, the gap between the pipe rod P and the lining pipe R is filled with cement milk M for backfilling, and the lining construction work is completed after waiting for its consolidation. .
[0040]
  In the above process, the construction auxiliary device H was removed from the lining pipe R and removed during the process (step 6), but the construction auxiliary device H was not removed and buried with the filling mortar. Embodiments can also be taken.
  The above-described pipe manufacturing apparatus S is only one aspect of having a restriction frame, and does not exclude other structures.
[0041]
  According to the lining construction method of this embodiment, by using the construction auxiliary device H, it is possible to facilitate the initial mounting work of the pipe making machine S, which is a factor of difficulty in the initial process of lining construction. The initial construction can be performed without requiring skill. Thereby, construction time can be shortened and construction efficiency can be significantly improved. Also, in the construction auxiliary device H, the ridges 6 and 7 engage with the outer surface roller 14 of the joining mechanism portion 15 of the pipe making device S to serve as a guide for the outer surface roller 14 and smoothly drive the pipe making device S. can do.
  Moreover, when taking the aspect which removes the auxiliary apparatus H for this construction, the auxiliary apparatus H for this construction can be used again and it is economical.
[0042]
  In this embodiment, although it is attached to the rectangular pipe rod P, it can be applied to other shapes. That is, the horseshoe-shaped lining pipe R is obtained by making the regulation frame 16 into a horseshoe shape with respect to the horseshoe-shaped tube rod.
[0043]
(Second Embodiment)
  In the above embodiment, a method for constructing a lining pipe having a rectangular cross section and a so-called odd cross section having a horseshoe cross section has been described. However, application to a lining pipe having a circular cross section is not excluded. In this case, the belt-shaped member does not need to have plastic deformability, and a normal elastic material is used. That is, the strip-shaped members 100 and 130 from which the plastic deformation materials 120 and 122 are removed are used. In the pipe making apparatus S, the restriction frame 16 and the guide 17 are omitted, and the molding frame 11 can be used as it is. In this case, the circular shape is naturally held by the belt-like member having elasticity. Alternatively, a rigid annular molding frame may be used.
  The construction auxiliary device according to the second embodiment has a cylindrical shape, and can be assembled and disassembled with appropriate divided bodies. The front end portion has a notch recess according to the first embodiment, and the notch The front end surface takes a spiral curved surface except for the concave portion. The rest of the configuration is the same as in the first embodiment.
  The procedure of the lining construction work performed using the construction auxiliary device is performed in accordance with the first embodiment.
[0044]
  The present invention is not limited to the above embodiment, and various design changes can be made within the scope of the basic technical idea of the present invention. That is, the following aspects are included in the technical scope of the present invention.
1) In the construction auxiliary device H, the front protrusion 6 at the front of the notch recess can be omitted. 2) In the construction auxiliary device H, the rear ridge 7 can be omitted.
3) A mode in which a bending force is increased by attaching another joining mechanism part after the joining mechanism part 15 to the pipe-making apparatus S and adopting a duplex system.
[0045]
【The invention's effect】
  According to the lining construction method in the pipe rod of the present invention, by using the construction auxiliary device, it is possible to facilitate the initial mounting work of the pipe making machine which is the cause of the difficulty of the initial process of the lining construction. The initial construction can be performed without requiring skill. Thereby, construction time can be shortened and construction efficiency can be significantly improved.
  Further, in this construction auxiliary device, the protrusions engage with the outer surface roller of the joining mechanism portion of the pipe making device, and serve as a guide for the outer surface roller, so that the pipe making device can be driven smoothly.
  Furthermore, when taking the aspect which removes this construction auxiliary apparatus H, this construction auxiliary apparatus can be used any number of times, and it is economical.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing a construction example of an embodiment of a lining construction method in a pipe rod of the present invention.
FIG. 2 is a front view of a construction auxiliary device installed in a pipe rod.
FIG. 3 is a longitudinal sectional view (sectional view taken along line 3-3 in FIG. 2).
4 is a top view thereof (a view taken along line 4-4 in FIG. 3).
FIG. 5 is an enlarged view in which a belt-like member is attached to the construction auxiliary device.
6 is a cross-sectional view taken along line 6-6 in FIG.
7 is a cross-sectional view taken along line 7-7 in FIG.
FIG. 8 is a front view incorporating a pipe making apparatus.
9 is a cross-sectional view taken along line 9-9 in FIG.
FIG. 10 is a partial side view showing the relationship between a molding frame and a regulation frame.
11 is a sectional view taken along line 11-11 in FIG.
FIG. 12 is a perspective view of a guide element.
13 is a diagram showing a detailed structure of a molding frame (viewed in the direction of arrow 13 in FIG. 14).
14 is a view in the direction of arrow 14 in FIG.
FIG. 15 is a configuration diagram of a molding frame in a joining mechanism portion.
FIG. 16 is an enlarged front view of the joining mechanism.
17 is an internal configuration diagram of the joining mechanism section (a cross-sectional view taken along line 17-17 in FIG. 16).
FIG. 18 is an enlarged sectional view of a joining roller portion.
FIG. 19A is a cross-sectional view showing one embodiment of a belt-shaped member.
  (b) The drawing is a cross-sectional view showing the bonding relationship between the belt-like members.
FIG. 20 is another embodiment of the belt-like member used in the present invention.
[Explanation of symbols]
  H ... auxiliary equipment for construction, P ... pipe rod, R ... lining pipe, S ... pipe making equipment
  DESCRIPTION OF SYMBOLS 1 ... Main-body part, 5 ... Notch recessed part, 6 ... Front protrusion, 7 ... Rear protrusion, 11 ... Molding frame, 12 ... Guide roller, 13 ... Inner roller, 14 ... Outer roller, 15 ... Joining mechanism part, 16 ... Restriction frame, 100, 130 ... Band-shaped member, 104 ... Guide groove

Claims

In a pipe rod, a long strip-shaped member provided with plastic deformability that is continuously supplied and formed on both side edges is spirally wound, and the adjacent joints are joined together. It is a method of leaving a tubular lining pipe, and additionally forming an additional lining pipe with a band-shaped member newly supplied in front of the already formed lining pipe,
At the front end of the already formed lining pipe, there is disposed a flexible forming frame that is controlled by a restricting frame and has a joining mechanism composed of an inner roller and an outer roller, and the inner roller and the outer surface. In the method of forming the additional lining pipe by the sandwiching and joining function with the roller, and constructing the lining in the pipe rod,
At the start of construction of the lining, a prefabricated tubular body having a cross-sectional shape similar to the regulation frame and having a prescribed cross-section and having a predetermined rigidity and a connecting portion of the belt-like member on the front edge is formed. The construction auxiliary device is used, and the molding frame is incorporated in the tubular body of the construction assistance device so as to be inscribed, and the inner surface roller and the outer surface roller mounted on the molding frame are mounted on the tubular body. Holding the clamp, and connecting the strip-like member via the connecting portion on the movement extension of the inner and outer surface rollers to form a lining pipe,
The lining construction method in a pipe tub characterized by this.

In a pipe rod, a long band-shaped member with plastic deformation that is continuously supplied and formed with joints on both side edges is spirally wound and the adjacent joints are joined together. The tubular lining pipe is left, and an additional lining pipe is additionally formed with a belt-like member newly supplied in front of the already formed lining pipe,
At the front end of the already formed lining pipe, there is disposed a flexible forming frame that is controlled by a restricting frame and has a joining mechanism composed of an inner roller and an outer roller, and the inner roller and the outer surface. An apparatus used for a method of forming the additional lining pipe by a sandwiching and joining function with a roller, and executing running in the pipe rod,
The molded frame is accommodated in an inscribed manner, and is formed of a tubular body having a predetermined rigidity with which the inner roller and the outer roller mounted on the molded frame are sandwiched and held at the front edge thereof,
A connecting portion is formed on the extension of movement between the inner surface roller and the outer surface roller.
Auxiliary equipment for lining construction in a pipe cage characterized by that.

The auxiliary device for lining construction in a pipe rod according to claim 2, wherein a protrusion for guiding the outer surface roller is formed on the outer surface of the tubular body.

The auxiliary device for lining construction in a pipe cage according to claim 2, wherein the tubular body is formed of a divided body.

Inside the pipe rod, joints are formed on both side edges, and long strip members that are continuously supplied are spirally wound to leave the tubular lining pipe formed by joining the joints that make contact with each other. , A method of additionally forming an additional lining pipe with a belt-like member newly supplied in front of the already formed lining pipe,
A molding frame having a joining mechanism part composed of an inner surface roller and an outer surface roller is disposed at the front end portion of the already formed lining tube, and the additional lining tube is connected by a sandwiching and joining function between the inner surface roller and the outer surface roller. In the method of forming and constructing the lining in the pipe cage,
At the start of construction of the lining, an auxiliary equipment for construction is used which forms a circular cross section as defined by the prescribed cross section and has a predetermined rigidity and a prefabricated tubular body having a connecting portion of the strip member on the front edge. The construction auxiliary device is assembled so that the molding frame is inscribed therein, and the inner surface roller and the outer surface roller mounted on the molding frame are sandwiched and held in the tubular body, A lining pipe is formed by connecting the belt-like member via the connecting portion on the movement extension of the outer surface roller;
The lining construction method in a pipe tub characterized by this.