JP2003042344A - Water stopping method for fitting pipe opening - Google Patents
Water stopping method for fitting pipe openingInfo
- Publication number
- JP2003042344A JP2003042344A JP2001231921A JP2001231921A JP2003042344A JP 2003042344 A JP2003042344 A JP 2003042344A JP 2001231921 A JP2001231921 A JP 2001231921A JP 2001231921 A JP2001231921 A JP 2001231921A JP 2003042344 A JP2003042344 A JP 2003042344A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- tube
- spiral
- mounting
- main
- 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.)
- Pending
Links
Landscapes
- Sewage (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、地中に埋設された
下水道管等の内面に長尺帯板状のプロファイルを螺旋状
に巻回してライニングする更生作業において、更生され
る本管と、この本管に枝分かれして接続された取付管と
の接続部分を止水する止水方法に関する。TECHNICAL FIELD The present invention relates to a main pipe rehabilitated in a rehabilitation work in which a long strip-shaped profile is spirally wound and lined on the inner surface of a sewer pipe or the like buried in the ground, The present invention relates to a water stopping method for stopping water at a connection portion with a mounting pipe branched and connected to the main pipe.
【０００２】[0002]
【従来の技術】上下水道等の既設管路において、老朽化
や腐食により漏水のおそれがある場合には、その既設管
路内に新たなライニング管を形成して更生することが行
われている。本出願人は、このようなライニング更生方
法として、従来より、例えば特開平１０−１６６４４４
号公報、特開平１１−８２８６５号公報等に開示された
技術を開発し、実用化している。係るライニング更生方
法は、両側縁部に嵌合可能な接合部を設けた長尺帯板状
の合成樹脂製プロファイルを、既設管路内に連続的に供
給して管路内で螺旋状に巻回し、前記接合部同士を接合
させて螺旋管を形成した後、既設管路と螺旋管との間に
セメントまたはモルタル系の裏込め材を注入して硬化さ
せるというものである。プロファイルを螺旋状に巻回し
て接合する方法としては、供給口側で螺旋状に接合した
もの順次管路内に送り込んでゆく工法や、自走式の製管
機を管路内で前進させながら螺旋管の先端部分にプロフ
ァイルを巻き足してゆく工法などが知られている。2. Description of the Related Art In existing pipelines such as water and sewage, when there is a risk of water leakage due to deterioration or corrosion, new lining pipes are formed in the existing pipelines for rehabilitation. . The applicant of the present invention has previously proposed such a lining rehabilitation method as disclosed in, for example, Japanese Patent Application Laid-Open No. 10-166444.
The technology disclosed in Japanese Patent Laid-Open No. 11-82865 and the like have been developed and put into practical use. According to such a lining rehabilitation method, a long strip plate-shaped synthetic resin profile having joint portions that can be fitted to both side edge portions is continuously supplied into an existing pipeline and spirally wound in the pipeline. After rotating and joining the joining portions to form a spiral tube, cement or mortar-based backfilling material is injected between the existing pipeline and the spiral tube to cure. As a method of spirally winding and joining the profiles, the spirally joined ones on the supply port side are sequentially fed into the pipeline, or a self-propelled pipe manufacturing machine is advanced in the pipeline. A construction method in which a profile is wound around the tip of the spiral tube is known.
【０００３】[0003]
【発明が解決しようとする課題】地中に埋設された既設
管路は、通常、大径の本管と、この本管に枝分かれして
接続された小径の取付管（枝管）とから構成される。そ
のため、前記のような螺旋管によって本管をライニング
更生する場合には、取付管が本管に接続する位置に合わ
せて螺旋管にも取付管口を開口する必要がある。しかし
ながら、従来は、本管内の螺旋管と裏込め材にそれらを
貫通する削孔を形成して取付管に連通させるだけであっ
たため、裏込め材の削孔面からの浸入水を十分に遮断す
ることができなかった。The existing pipeline buried in the ground is usually composed of a large-diameter main pipe and a small-diameter mounting pipe (branch pipe) branched and connected to the main pipe. To be done. Therefore, in the case where the main pipe is lined and rehabilitated with the spiral pipe as described above, it is necessary to open the attachment pipe port also in the spiral pipe in accordance with the position where the attachment pipe is connected to the main pipe. However, in the past, the spiral pipe in the main pipe and the backfill material were simply drilled through them to communicate with the mounting pipe, so the infiltration water from the drilled surface of the backfill material was sufficiently blocked. I couldn't.
【０００４】本発明は係る事情に鑑みてなされたもの
で、本管の内面に螺旋管を形成してライニング更生する
にあたり、本管と取付管との接合部分に削孔を設けて形
成される取付管口を万全に止水するための止水方法を提
供することを解決課題としている。The present invention has been made in view of the above circumstances, and when forming a spiral pipe on the inner surface of the main pipe to rehabilitate the lining, a hole is formed at the joint between the main pipe and the mounting pipe. The problem to be solved is to provide a water-stopping method for completely shutting off the mounting pipe mouth.
【０００５】[0005]
【課題を解決するための手段】前記課題を解決するた
め、本発明の請求項１記載の取付管口の止水方法は、埋
設された本管の内面をライニング更生するに際し、本管
と取付管との接続部分に取付管口を形成して、この取付
管口の周囲を止水する方法であって、長尺帯板状のプロ
ファイルを本管内で螺旋状に巻回してライニング用の螺
旋管を形成する工程と、前記螺旋管と本管との間に裏込
め材を注入して硬化させる工程と、前記螺旋管における
本管と取付管との接続部分に螺旋管側から削孔を形成す
る工程と、取付管に内接しうる円筒形の挿入筒及びこの
挿入筒の基端に一体形成されたフランジ部を備える止水
用サドルを、螺旋管側から前記削孔に挿入して、前記挿
入筒の外周面を取付管の内周面に接着し、前記フランジ
部の外面を螺旋管の内面に接着する工程とを備えること
を特徴とする。In order to solve the above-mentioned problems, a method of stopping water at an attachment pipe mouth according to claim 1 of the present invention is to attach the main pipe to the main pipe when lining and rehabilitating an inner surface of the buried main pipe. This is a method of forming a mounting pipe opening at the connecting part with the pipe and stopping water around the mounting pipe opening.A long strip plate-shaped profile is spirally wound inside the main pipe to form a spiral for lining. A step of forming a pipe, a step of injecting a backfill material between the spiral pipe and the main pipe to cure the pipe, and drilling holes from the spiral pipe side in the connection portion of the spiral pipe with the main pipe and the mounting pipe. A step of forming, a water-stop saddle including a cylindrical insertion tube that can be inscribed in the mounting tube and a flange portion integrally formed at the base end of the insertion tube, is inserted into the hole from the spiral tube side, The outer peripheral surface of the insertion tube is adhered to the inner peripheral surface of the mounting tube, and the outer surface of the flange portion is attached to the spiral tube. Characterized in that it comprises a step of bonding to the surface.
【０００６】すなわちこの止水方法は、本管内にライニ
ング用の螺旋管を形成して裏込め材を注入し、この螺旋
管に削孔を形成して螺旋管と取付管とを連通させた後、
予め用意した止水用サドルをこの削孔に挿入して削孔の
周囲に内側から接着することにより、削孔周辺を止水す
るものである。止水用サドルに挿入筒とフランジ部とを
設けておき、挿入筒を取付管の内面に、フランジ部を螺
旋管の内面に、それぞれ密着させることで、止水用サド
ルが螺旋管と取付管とにまたがって削孔周辺を被覆する
ので、削孔の周辺が万全に止水されることとなる。That is, in this water stopping method, a spiral pipe for lining is formed in the main pipe, a backfill material is injected, and a hole is formed in this spiral pipe to connect the spiral pipe and the mounting pipe to each other. ,
A water stopping saddle prepared in advance is inserted into the drilled hole and adhered to the periphery of the drilled hole from the inside to stop the water around the drilled hole. The water-stop saddle is provided with an insertion cylinder and a flange portion, and the insertion cylinder is closely attached to the inner surface of the mounting pipe and the flange portion is closely contacted to the inner surface of the spiral pipe. Since the periphery of the drilled hole is covered over the entire area, the water around the drilled hole is completely stopped.
【０００７】また、本発明の請求項２記載の取付管口の
止水方法は、埋設された本管の内面をライニング更生す
るに際し、本管と取付管との接続部分に取付管口を形成
して、この取付管口の周囲を止水する方法であって、長
尺帯板状のプロファイルを本管内で螺旋状に巻回してラ
イニング用の螺旋管を形成する工程と、前記螺旋管と本
管との間に裏込め材を注入して硬化させる工程と、前記
螺旋管における本管と取付管との接続部分に螺旋管側か
ら削孔を形成する工程と、熱可塑性樹脂からなる更生管
を襞状に縮径させた状態で取付管内に挿入し、この更生
管の閉止された先端部を螺旋管まで及ばせて更生管内を
加熱及び加圧することにより、更生管を拡径して取付管
の内面に密着させる工程と、前記更生管の先端部を、螺
旋管内に突出する筒状の突出部を残して切除し、この突
出部を螺旋管側から加熱しつつ押し拡げて螺旋管の内面
に沿うように賦形することにより、更生管の先端部に鍔
返し部を成形することを特徴とする。According to a second aspect of the present invention, there is provided a method for stopping water at an attachment pipe opening, wherein when the inner surface of the buried main pipe is lined and rehabilitated, the attachment pipe opening is formed at a connecting portion between the main pipe and the attachment pipe. Then, a method of stopping water around the mounting pipe port, wherein a step of spirally winding a long strip plate-shaped profile in the main pipe to form a spiral pipe for lining, and the spiral pipe, A step of injecting a backfill material between the main tube and the resin to cure it, a step of forming a hole from the side of the spiral tube in the connecting portion between the main tube and the mounting tube in the spiral tube, and a rehabilitation consisting of a thermoplastic resin. The pipe is inserted into the mounting pipe in a fold-reduced state, and the closed tip of the rehabilitation pipe is extended to the spiral pipe to heat and pressurize the inside of the rehabilitation pipe to expand the diameter of the rehabilitation pipe. The step of closely contacting with the inner surface of the mounting pipe, and the tip of the rehabilitation pipe protruding into the spiral pipe -Shaped protrusion is left behind, and the protrusion is heated and expanded from the side of the spiral tube and shaped so as to follow the inner surface of the spiral tube, thereby forming a brim portion at the tip of the rehabilitation tube. It is characterized by
【０００８】すなわちこの止水方法は、前記請求項１に
係る構成と同様にして本管内の螺旋管に削孔を形成した
後、加熱・加圧によって拡径しうる更生管によって取付
管内をライニング更生し、この更生管の本管側切除端を
螺旋管内で鍔返しするものである。更生管の管端に鍔返
し部を一体に形成することで、この更生管が螺旋管から
取付管にわたって取付管口全体を被覆するので、取付管
口が万全に止水されることとなる。That is, according to this water stopping method, after forming a hole in the spiral pipe in the main pipe in the same manner as the structure according to the first aspect, the inside of the mounting pipe is lined with a rehabilitating pipe that can be expanded in diameter by heating and pressurizing. This is to rehabilitate and to revert the cut end of the rehabilitating tube on the main tube side in the spiral tube. By integrally forming the collar portion at the pipe end of the rehabilitating pipe, the rehabilitating pipe covers the entire mounting pipe port from the spiral pipe to the mounting pipe, so that the mounting pipe port is completely stopped.
【０００９】[0009]
【発明の実施の形態】以下、本発明の実施の形態につい
て、図面を参照しつつ説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.
【００１０】図１は、本発明の取付管口の止水方法にお
いて、本管内の螺旋管に削孔を形成するまでの工程を示
す図である。FIG. 1 is a diagram showing a process up to forming a hole in a spiral pipe in a main pipe in a method of stopping water at a mounting pipe mouth according to the present invention.
【００１１】地中に埋設された下水道管等の本管１に
は、本管１よりも小径の取付管２が接続されている。こ
の取付管２は、通常、地上近辺に設けられた図示しない
枡等に連通している。図示の例では、取付管２の管端が
本管１内にやや突出する状態で接続されているが、取付
管２の管端が本管１の内面とほぼ面一になっている場合
もある。本発明は、これらいずれの接続状態にも対応可
能である。A mounting pipe 2 having a smaller diameter than the main pipe 1 is connected to the main pipe 1 such as a sewer pipe buried in the ground. The mounting pipe 2 is normally communicated with a box or the like (not shown) provided near the ground. In the illustrated example, the pipe end of the mounting pipe 2 is connected to the main pipe 1 in a state of slightly protruding, but in the case where the pipe end of the mounting pipe 2 is substantially flush with the inner surface of the main pipe 1. is there. The present invention can handle any of these connection states.
【００１２】この本管１のライニング更生に際しては、
まず本管１内に長尺帯板状の合成樹脂製プロファイル３
０を連続的に供給してこれを管路内で螺旋状に巻回し、
本管１の内周面に沿うようにして螺旋管３を形成する。
プロファイル３０は、その両側縁部に嵌合可能な接合部
が設けられて、ひと巻きごとに前後の側縁部同士が水密
的に嵌合するようになっている。ただし、本発明におい
てプロファイル３０の具体的な断面形状は特に限定しな
い。また、プロファイル３０を螺旋状に巻回してゆく方
法としても、供給口側で螺旋状に接合しながら順次管路
内に送り込んでゆく工法や、自走式の製管機を管路内で
前進させながら螺旋管３の先端部分にプロファイル３０
を巻き足してゆく工法などが知られているが、本発明に
おいてはその方法も特に限定はしない。When relining the main pipe 1,
First, a long strip plate-shaped synthetic resin profile 3 is provided in the main pipe 1.
0 is continuously supplied and spirally wound in the pipe line,
The spiral tube 3 is formed along the inner peripheral surface of the main tube 1.
The profile 30 is provided with joint portions that can be fitted to both side edge portions, and the front and rear side edge portions are watertightly fitted to each other for each winding. However, the specific cross-sectional shape of the profile 30 is not particularly limited in the present invention. Further, as a method of spirally winding the profile 30, a method of sequentially feeding the profile 30 into the pipe while spirally joining it on the supply port side, or a self-propelled pipe manufacturing machine is advanced in the pipe. The profile 30 is attached to the tip of the spiral tube 3 while
Although a method of adding the above is known, the method is not particularly limited in the present invention.
【００１３】プロファイル３０を巻回して螺旋管３を形
成しながら、または螺旋管３の形成が完了した後に、螺
旋管３と本管１との隙間に裏込め材４を注入して硬化さ
せる。裏込め材４としては、例えばポルトランドセメン
ト、珪砂骨材、水等を混合させたモルタルを利用する
が、本発明においては裏込め材４の組成や注入方法につ
いても特に限定はしない。そして、形成された螺旋管３
における本管１と取付管２との接続部分に螺旋管３側か
ら削孔５を形成して、螺旋管３と取付管２とを連通させ
る。削孔５の孔径は取付管２の内径とほぼ同じにする。While the profile 30 is wound to form the spiral tube 3, or after the formation of the spiral tube 3 is completed, the backfilling material 4 is injected into the gap between the spiral tube 3 and the main tube 1 to cure it. As the backfill material 4, for example, portland cement, silica sand aggregate, mortar mixed with water, etc. are used, but the composition of the backfill material 4 and the injection method are not particularly limited in the present invention. And the formed spiral tube 3
A drill hole 5 is formed from the side of the spiral pipe 3 in the connecting portion between the main pipe 1 and the mounting pipe 2 in order to connect the spiral pipe 3 and the mounting pipe 2 to each other. The hole diameter of the drilled hole 5 is substantially the same as the inner diameter of the mounting pipe 2.
【００１４】こうして形成された削孔５が取付管口とな
るが、この取付管口周辺の漏水を防止するために本発明
では、止水用サドルによる止水方法と、取付管の更
生管を鍔返し加工する止水方法、の２種類の止水方法を
採用する。以下、これらの止水方法について説明する。The drilled hole 5 thus formed serves as a mounting pipe port. In order to prevent water leakage around the mounting pipe port, the present invention provides a water stopping method using a water stop saddle and a rehabilitation pipe for the mounting pipe. Two types of water stopping methods are adopted: a water stopping method of turning back. Hereinafter, these water stopping methods will be described.
【００１５】止水用サドルによる止水方法
図２に示すように、止水用サドル６は、塩化ビニル等の
合成樹脂からなる成形部材で、取付管２に内接しうる円
筒形の挿入筒６１と、この挿入筒６１の基端に一体形成
されたフランジ部６２とを備えている。挿入筒６１の筒
軸に対するフランジ部６２の角度は、本管１と取付管２
との接続角度に対応するように形成されている。Water Stopping Method Using a Water Stop Saddle As shown in FIG. 2, the water stop saddle 6 is a molded member made of a synthetic resin such as vinyl chloride and is a cylindrical insertion tube 61 that can be inscribed in the mounting tube 2. And a flange portion 62 integrally formed at the base end of the insertion tube 61. The angle of the flange portion 62 with respect to the cylinder axis of the insertion cylinder 61 is determined by the main pipe 1 and the mounting pipe 2.
It is formed so as to correspond to the connection angle with.
【００１６】このような止水用サドル６を螺旋管３内に
搬入し、挿入筒６１を削孔５から取付管２内に挿入する
とともに、フランジ部６２を螺旋管３の内面に密着させ
る。このとき、取付管２の内周面と螺旋管３の内面には
接着剤を塗布しておき、挿入筒６１の外周面と取付管２
の内周面、フランジ部６２の外面と螺旋管３の内面を、
それぞれ接着により接合する。取付管２側（図中、Ａの
箇所）に用いる接着剤と螺旋管３側（図中、Ｂの箇所）
に用いる接着剤とは、各管の材質に応じて異なっていて
もよく、例えば取付管２側（Ａの箇所）にはエポキシ系
接着剤、螺旋管３側（Ｂの箇所）には塩化ビニル系接着
材等を用いることもできる。Such a water stop saddle 6 is carried into the spiral pipe 3, the insertion cylinder 61 is inserted into the mounting pipe 2 through the drilled hole 5, and the flange portion 62 is brought into close contact with the inner surface of the spiral pipe 3. At this time, an adhesive is applied to the inner peripheral surface of the mounting tube 2 and the inner surface of the spiral tube 3, and the outer peripheral surface of the insertion tube 61 and the mounting tube 2 are attached.
The inner peripheral surface of the, the outer surface of the flange portion 62 and the inner surface of the spiral tube 3,
Each is bonded by adhesion. Adhesive used on the mounting tube 2 side (A in the figure) and the spiral tube 3 side (B in the figure)
The adhesive used for may differ depending on the material of each tube. For example, an epoxy adhesive on the side of the mounting tube 2 (location A) and vinyl chloride on the side of the spiral tube 3 (location B). A system adhesive or the like can also be used.
【００１７】こうして、止水用サドル６が螺旋管３と取
付管２とにまたがって削孔５の周辺を被覆し、取付管口
を万全に止水することができる。Thus, the water stop saddle 6 covers the spiral pipe 3 and the mounting pipe 2 and covers the periphery of the drilled hole 5, so that the mounting pipe port can be completely stopped.
【００１８】取付管用の更生管を鍔返し加工する止水
方法
図３に示すように、枡側から取付管２内に、熱可塑性樹
脂からなる更生管７を挿入する。この更生管７は、軸方
向に沿って襞状部を設けることにより径方向に縮小され
ており、先端部を図示しない適宜の治具等により閉止し
た状態で取付管２内に挿入される。更生管７を取付管２
内に挿入するには、更生管７の先端部を閉止する治具に
取り付けた誘導ワイヤ等を先行させて取付管２内に挿入
し、この誘導ワイヤを螺旋管３側から引き出すなどの方
法によることができる。更生管７の先端部を螺旋管３ま
で及ばせた後、枡側から更生管７内に高温高圧の蒸気を
供給して、更生管７を拡径する。拡径した更生管７は取
付管２の全長にわたって取付管２の内面に密着する。取
付管２の拡径後、蒸気を排出し、必要に応じ冷却空気を
供給するなどして更生管７を硬化させる。Method of Water Stopping for Refitting Refitting Pipe for Mounting Pipe As shown in FIG. 3, a rehabilitation pipe 7 made of a thermoplastic resin is inserted into the mounting pipe 2 from the side of the box. The rehabilitation pipe 7 is radially reduced by providing a pleated portion along the axial direction, and is inserted into the mounting pipe 2 in a state where the tip end portion is closed by an appropriate jig or the like not shown. Rehabilitation pipe 7 to mounting pipe 2
To insert into the inside, a guide wire or the like attached to a jig for closing the tip of the rehabilitation pipe 7 is inserted into the attachment pipe 2 in advance, and the guide wire is pulled out from the spiral pipe 3 side. be able to. After the tip portion of the rehabilitation pipe 7 reaches the spiral pipe 3, high-temperature and high-pressure steam is supplied into the rehabilitation pipe 7 from the side of the box to expand the diameter of the rehabilitation pipe 7. The expanded rehabilitation pipe 7 is in close contact with the inner surface of the mounting pipe 2 over the entire length of the mounting pipe 2. After the diameter of the mounting pipe 2 is expanded, steam is discharged and cooling air is supplied as necessary to cure the rehabilitation pipe 7.
【００１９】こうして取付管２が更生管７によりライニ
ングされた後、更生管７の先端部（図中の破線部分）を
切除して、更生管７と螺旋管３とを連通する。このと
き、更生管７の切除端には、螺旋管３内に突出する筒状
の突出部７１を残すようにする。そして、図４に示すよ
うに、螺旋管３側からこの突出部７１を再び加熱し、径
方向に押し拡げて、螺旋管３の内面に沿うように賦形す
る。After the attachment pipe 2 is lined with the rehabilitation pipe 7 in this manner, the tip end portion (broken line portion in the drawing) of the rehabilitation pipe 7 is cut off to connect the rehabilitation pipe 7 and the spiral pipe 3 to each other. At this time, at the cut end of the rehabilitation pipe 7, a cylindrical protruding portion 71 that protrudes into the spiral pipe 3 is left. Then, as shown in FIG. 4, the protruding portion 71 is heated again from the side of the spiral tube 3, expanded in the radial direction, and shaped along the inner surface of the spiral tube 3.
【００２０】こうして、図５に示すように、更生管７の
先端部に鍔返し部７２を形成し、この鍔返し部７２を接
着剤で螺旋管３の内面に接着する（図中、Ｃの箇所）。
この鍔返し部７２は、更生管７と一体に形成されるとと
もに、螺旋管３から取付管２にわたって取付管口全体を
被覆するので、取付管口を万全に止水することができ
る。Thus, as shown in FIG. 5, a flanged portion 72 is formed at the tip of the rehabilitation pipe 7, and this flanged portion 72 is bonded to the inner surface of the spiral pipe 3 with an adhesive (indicated by C in the figure). Location).
The flange portion 72 is formed integrally with the rehabilitating pipe 7 and covers the entire attachment pipe port from the spiral pipe 3 to the attachment pipe 2, so that the attachment pipe port can be completely stopped.
【００２１】[0021]
【発明の効果】以上に説明したように、本発明の請求項
１に係る取付管口の止水方法によれば、止水用サドルの
挿入筒が螺旋管側から取付管に挿入されて取付管の内面
に接着され、止水用サドルのフランジ部が螺旋管の内面
に密着して接着されるので、この止水用サドルが螺旋管
と取付管とにまたがって削孔周辺を被覆し、取付管口を
万全に止水することができる。As described above, according to the method of stopping water at the mounting pipe mouth according to the first aspect of the present invention, the insertion pipe of the water stop saddle is inserted into the mounting pipe from the spiral pipe side for mounting. Since it is adhered to the inner surface of the pipe and the flange portion of the water stop saddle is closely adhered to the inner surface of the spiral pipe, this water stop saddle covers the periphery of the drilled hole across the spiral pipe and the mounting pipe, It is possible to completely stop the mounting pipe port.
【００２２】また、請求項２に係る取付管口の止水方法
によれば、取付管の内面をライニング更生する更生管の
管端に鍔返し部が一体に形成され、この鍔返し部が螺旋
管から取付管にわたって取付管口全体を被覆するので、
取付管口を万全に止水することができる。According to the second aspect of the present invention, the flange portion is integrally formed with the pipe end of the rehabilitation pipe for lining and rehabilitating the inner surface of the attachment pipe, and the flange portion is spiral. Since it covers the entire mounting pipe mouth from the pipe to the mounting pipe,
It is possible to completely stop the mounting pipe port.
【図１】本発明の取付管口の止水方法において、本管内
の螺旋管に削孔を形成するまでの工程を示す図である。FIG. 1 is a diagram showing steps up to forming a hole in a spiral pipe in a main pipe in a method of stopping water at an attachment pipe port of the present invention.
【図２】本発明の第１の実施の形態を示す図であり、図
１に示した削孔に止水用サドルを挿入して取付管及び螺
旋管に接着する工程を示す。FIG. 2 is a diagram showing a first embodiment of the present invention, showing a step of inserting a water stop saddle into the drilled hole shown in FIG. 1 and adhering it to the mounting pipe and the spiral pipe.
【図３】本発明の第２の実施の形態を示す図であり、図
１に示した取付管を更生管によりライニング更生する工
程を示す。FIG. 3 is a view showing a second embodiment of the present invention, and shows a step of lining and rehabilitating the attachment pipe shown in FIG. 1 with a rehabilitation pipe.
【図４】図３に示した更生管の本管側切除端に鍔返し部
を形成する工程を示す図である。FIG. 4 is a diagram showing a step of forming a flanged portion at the main-side cut end of the rehabilitation pipe shown in FIG.
【図５】図４に示した更生管の鍔返し部を螺旋管に接着
する工程を示す図である。FIG. 5 is a diagram showing a step of adhering the flanged portion of the rehabilitation pipe shown in FIG. 4 to a spiral pipe.
１ 本管 ２ 取付管 ３ 螺旋管 ３０ プロファイル ４ 裏込め材 ５ 削孔 ６ 止水用サドル ６１ 挿入筒 ６２ フランジ部 ７ 更生管 ７１ 突出部 ７２ 鍔返し部 1 main 2 Mounting tube 3 spiral tube 30 profiles 4 backfill material 5 drilling 6 Water stop saddle 61 insertion tube 62 Flange 7 Rehabilitation pipe 71 Projection 72 Collar part
Claims (2)
するに際し、本管と取付管との接続部分に取付管口を形
成して、この取付管口の周囲を止水する方法であって、 長尺帯板状のプロファイルを本管内で螺旋状に巻回して
ライニング用の螺旋管を形成する工程と、 前記螺旋管と本管との間に裏込め材を注入して硬化させ
る工程と、 前記螺旋管における本管と取付管との接続部分に螺旋管
側から削孔を形成する工程と、 取付管に内接しうる円筒形の挿入筒及びこの挿入筒の基
端に一体形成されたフランジ部を備える止水用サドル
を、螺旋管側から前記削孔に挿入して、前記挿入筒の外
周面を取付管の内周面に接着し、前記フランジ部の外面
を螺旋管の内面に接着する工程とを備えることを特徴と
する取付管口の止水方法。1. A method of forming a mounting pipe opening at a connecting portion between the main pipe and the mounting pipe when lining and rehabilitating the inner surface of the buried main pipe, and stopping water around the mounting pipe mouth. A step of spirally winding a long strip plate-shaped profile in a main tube to form a spiral tube for lining, and a step of injecting a backfill material between the spiral tube and the main tube and curing the same. A step of forming a hole from the side of the spiral tube at a connection portion between the main tube and the mounting tube in the spiral tube, and a cylindrical insertion tube that can be inscribed in the mounting tube and a base end of the insertion tube A water-stop saddle having a flange portion is inserted into the drilled hole from the spiral pipe side, the outer peripheral surface of the insertion cylinder is bonded to the inner peripheral surface of the mounting pipe, and the outer surface of the flange portion is the inner surface of the spiral pipe. And a step of adhering, a method of stopping water at an attachment pipe opening.
するに際し、本管と取付管との接続部分に取付管口を形
成して、この取付管口の周囲を止水する方法であって、 長尺帯板状のプロファイルを本管内で螺旋状に巻回して
ライニング用の螺旋管を形成する工程と、 前記螺旋管と本管との間に裏込め材を注入して硬化させ
る工程と、 前記螺旋管における本管と取付管との接続部分に螺旋管
側から削孔を形成する工程と、 熱可塑性樹脂からなる更生管を襞状に縮径させた状態で
取付管内に挿入し、この更生管の閉止された先端部を螺
旋管まで及ばせて更生管内を加熱及び加圧することによ
り、更生管を拡径して取付管の内面に密着させる工程
と、 前記更生管の先端部を、螺旋管内に突出する筒状の突出
部を残して切除し、この突出部を螺旋管側から加熱しつ
つ押し拡げて螺旋管の内面に沿うように賦形することに
より、更生管の先端部に鍔返し部を成形することを特徴
とする取付管口の止水方法。2. A method of forming a mounting pipe opening at a connecting portion between the main pipe and the mounting pipe when relining the inner surface of the buried main pipe, and stopping water around the mounting pipe mouth. A step of spirally winding a long strip plate-shaped profile in a main tube to form a spiral tube for lining, and a step of injecting a backfill material between the spiral tube and the main tube and curing the same. The step of forming a hole from the spiral tube side at the connection portion between the main tube and the mounting tube in the spiral tube, and inserting the rehabilitating tube made of a thermoplastic resin into the mounting tube in a fold-reduced state, A step of expanding the diameter of the rehabilitation pipe and closely contacting the inner surface of the mounting pipe by heating and pressurizing the inside of the rehabilitation pipe by extending the closed front end of the rehabilitation pipe to the spiral pipe, , The cylindrical tube that protrudes into the spiral tube is removed, and the spiral tube is removed. Waterproofing method of mounting tube opening, characterized in that by shaping along the inner surface of the helical tube by expanding pressing with heating, of forming the flange-back portion to the front end portion of the rehabilitating pipe from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001231921A JP2003042344A (en) | 2001-07-31 | 2001-07-31 | Water stopping method for fitting pipe opening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001231921A JP2003042344A (en) | 2001-07-31 | 2001-07-31 | Water stopping method for fitting pipe opening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003042344A true JP2003042344A (en) | 2003-02-13 |
Family
ID=19063913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001231921A Pending JP2003042344A (en) | 2001-07-31 | 2001-07-31 | Water stopping method for fitting pipe opening |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003042344A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005016179A (en) * | 2003-06-26 | 2005-01-20 | Sekisui Chem Co Ltd | Method for renovating sewerage pipe |
| JP2017166121A (en) * | 2016-03-14 | 2017-09-21 | 積水化学工業株式会社 | Repair method of water conduit structure and repaired water conduit structure |
| JP2018096097A (en) * | 2016-12-13 | 2018-06-21 | 積水化学工業株式会社 | Method for repairing water channel structure, repaired water channel structure, and opening passage renovating device |
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| JPH02154891A (en) * | 1988-12-05 | 1990-06-14 | Sekisui Chem Co Ltd | Boring method for branch pipe opening section after lining in pipe |
| JPH0540693U (en) * | 1991-10-30 | 1993-06-01 | ニホンブレーン株式会社 | Branch pipe branch lining material |
| JPH10205681A (en) * | 1997-01-23 | 1998-08-04 | Iseki Poly Tech Inc | Repairing method of junction between buried main pipe and lateral pipe |
| JP2001141172A (en) * | 1999-11-17 | 2001-05-25 | Sekisui Chem Co Ltd | Lateral pipe port water cut-off method in sewage main pipe regenerating constraction |
| JP2001152542A (en) * | 1999-11-26 | 2001-06-05 | Sekisui Chem Co Ltd | Repairing method for lateral sewer |
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2001
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02154891A (en) * | 1988-12-05 | 1990-06-14 | Sekisui Chem Co Ltd | Boring method for branch pipe opening section after lining in pipe |
| JPH0540693U (en) * | 1991-10-30 | 1993-06-01 | ニホンブレーン株式会社 | Branch pipe branch lining material |
| JPH10205681A (en) * | 1997-01-23 | 1998-08-04 | Iseki Poly Tech Inc | Repairing method of junction between buried main pipe and lateral pipe |
| JP2001141172A (en) * | 1999-11-17 | 2001-05-25 | Sekisui Chem Co Ltd | Lateral pipe port water cut-off method in sewage main pipe regenerating constraction |
| JP2001152542A (en) * | 1999-11-26 | 2001-06-05 | Sekisui Chem Co Ltd | Repairing method for lateral sewer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005016179A (en) * | 2003-06-26 | 2005-01-20 | Sekisui Chem Co Ltd | Method for renovating sewerage pipe |
| JP2017166121A (en) * | 2016-03-14 | 2017-09-21 | 積水化学工業株式会社 | Repair method of water conduit structure and repaired water conduit structure |
| JP2018096097A (en) * | 2016-12-13 | 2018-06-21 | 積水化学工業株式会社 | Method for repairing water channel structure, repaired water channel structure, and opening passage renovating device |
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