JPH0756129B2 - How to attach the spiral tube to the sheath tube - Google Patents
How to attach the spiral tube to the sheath tubeInfo
- Publication number
- JPH0756129B2 JPH0756129B2 JP62090048A JP9004887A JPH0756129B2 JP H0756129 B2 JPH0756129 B2 JP H0756129B2 JP 62090048 A JP62090048 A JP 62090048A JP 9004887 A JP9004887 A JP 9004887A JP H0756129 B2 JPH0756129 B2 JP H0756129B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- spiral
- tube
- sheath
- sewage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は，例えば合成樹脂製の帯状体を螺旋状に巻回し
てなる螺旋管を，老朽化した下水管等の鞘管に装着する
方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a method of mounting a spiral pipe formed by spirally winding a synthetic resin strip on a sheath pipe such as an aged sewer pipe. Regarding
（従来の技術） ヒューム管等の下水管は，腐食性ガスによる浸食，土圧
等の影響により老朽化が進み，ひび割れ，漏水等を招来
するおそれがある。このため，老朽化した下水管内に合
成樹脂管を装着して下水管を更生することが行われてい
る。従来，長尺の合成樹脂管はマンホール等から下水管
内に導入することができないため，合成樹脂管を短く切
断して下水管内に導入し，導入された合成樹脂等を下水
管内にて接合するという方法が採用されていた。しかし
ながら，このような方法では合成樹脂管を下水管内へ導
入するために，あるいは下水管内にて合成樹脂管同士を
接合するために，多大な手間を要するという欠点があっ
た。(Prior Art) Sewage pipes such as fume pipes may be deteriorated due to erosion by corrosive gas, earth pressure, and the like, leading to cracks, water leakage, and the like. For this reason, it has been practiced to rehabilitate sewer pipes by installing synthetic resin pipes in the aged sewer pipes. Conventionally, since a long synthetic resin pipe cannot be introduced into the sewer pipe from a manhole, etc., it is said that the synthetic resin pipe is cut short and introduced into the sewer pipe, and the introduced synthetic resin is joined in the sewer pipe. The method was adopted. However, such a method has a drawback that it takes a lot of time to introduce the synthetic resin pipe into the sewer pipe or to join the synthetic resin pipes in the sewer pipe.
このような欠点を解消するために，近時，例えば特開昭
61−48690号公報に開示されているように，合成樹脂製
の帯状体を螺旋状に巻回して連続的に螺旋管を製造する
製管機を用い，該製管機にて製造される螺旋管を，直
接、下水管内に連続的に導入する方法が開発されてい
る。Recently, in order to eliminate such a defect, for example, Japanese Patent Laid-Open No.
As disclosed in JP-A-61-48690, a pipe-making machine for spirally winding a synthetic resin strip to continuously produce a spiral tube is used. A method has been developed in which the pipe is directly introduced into the sewer pipe continuously.
（発明が解決しようとする問題点） 製管機は，該製管機内に導入される合成樹脂製の帯状体
を螺旋状に巻回すると共に，巻回された帯状体の幅方向
端部と新たに導入される帯状体の幅方向端部とを液密に
接着させて螺旋管を形成する。前記特開昭61−48690号
公報に開示された方法では，該製管機にて形成された螺
旋管を下水管内へ直接導入するため，該螺旋管は回転さ
れつつ，下水管内をその軸方向へ推進される。従って、
下水管内に導入された螺旋管は，自重にて撓むことによ
り，下水管の下部内周面に当接した状態となり，螺旋管
外周面には，下水管内周面からの摩擦力が働く。下水管
内へ導入された螺旋管が長くなると，螺旋管外周面に働
く摩擦力が大きくなり，螺旋管は回転されなくなって下
水管内を推進されないおそれがある。螺旋管が推進され
なくなると，製管機から繰り出される螺旋管は径方向に
広がり，下水管内周面に当接した状態になってしまう。(Problems to be Solved by the Invention) A pipe-making machine spirally winds a synthetic resin strip introduced into the pipe-making machine, and at the same time, a widthwise end portion of the rolled strip-like body is formed. The spiral tube is formed by liquid-tightly adhering to the widthwise end of the newly introduced strip. In the method disclosed in the above-mentioned JP-A-61-48690, since the spiral pipe formed by the pipe making machine is directly introduced into the sewer pipe, the spiral pipe is rotated while the spiral pipe is rotated in the axial direction. Be promoted to. Therefore,
The spiral pipe introduced into the sewer pipe is bent by its own weight to come into contact with the lower inner peripheral surface of the sewer pipe, and a friction force from the inner peripheral surface of the sewer pipe acts on the outer peripheral surface of the spiral pipe. When the spiral pipe introduced into the sewer pipe becomes long, the frictional force acting on the outer peripheral surface of the spiral pipe increases, and the spiral pipe may not be rotated and may not be propelled in the sewer pipe. When the spiral pipe is no longer propelled, the spiral pipe fed from the pipe making machine expands in the radial direction and comes into contact with the inner peripheral surface of the sewer pipe.
（問題点を解決するための手段） 本発明は上記従来の問題点を解決するものであり，その
目的は，製管機により形成される螺旋管を，小さな推進
力により鞘管内に推進させることができ，螺旋管を変形
させることなく鞘管内に装着し得る方法を提供すること
にある。(Means for Solving Problems) The present invention is to solve the above-mentioned conventional problems, and an object thereof is to propel a spiral pipe formed by a pipe making machine into a sheath pipe with a small propulsion force. Therefore, it is an object of the present invention to provide a method in which the spiral tube can be mounted in the sheath tube without being deformed.
本発明の螺旋管の鞘管への装着方法は，製管機により帯
状体を螺旋状に巻回して螺旋管を製造しつつ，製造され
た螺旋管を連続的に鞘管内に導入することにより，螺旋
管を鞘管に装着する方法であり，鞘管内に所定量の液体
を滞留させる工程と，製管機にて製造される螺旋管先端
を液密に封止する工程と，液体が滞留した鞘管内に螺旋
管を導入して，該液体により螺旋管に浮力を作用させた
状態で該螺旋管を推推させる工程とを包含してなり，そ
のことにより上記目的が達成される。The method for attaching the spiral tube to the sheath tube of the present invention is to continuously introduce the manufactured spiral tube into the sheath tube while manufacturing the spiral tube by spirally winding the band-shaped body with a pipe making machine. , A method of mounting a spiral tube on a sheath tube, a step of retaining a predetermined amount of liquid in the sheath tube, a step of liquid-tightly sealing the tip of the spiral tube manufactured by a pipe-making machine, and a step of retaining liquid The step of introducing a spiral tube into the sheath tube and thrusting the spiral tube in a state where buoyancy is applied to the spiral tube by the liquid is included, whereby the above object is achieved.
（実施例） 以下に本発明の実施例について説明する。(Examples) Examples of the present invention will be described below.
第１図は本発明方法の実施状態を略示する説明図であ
る。図において,10は鞘管である下水管であり，該下水
管10は，マンホール21および22の下部間に所定の勾配を
もって配設されている。FIG. 1 is an explanatory view schematically showing an implementation state of the method of the present invention. In the figure, 10 is a sewage pipe which is a sheath pipe, and the sewage pipe 10 is arranged with a predetermined gradient between the lower parts of the manholes 21 and 22.
本発明方法は，このような下水管10内に合成樹脂製の螺
旋管を装着するものであり，まず，上流側マンホール21
内に製管機が配設される。該製管機30は，そのマンホー
ル21の開口部21a上方に配設されたドラム41から繰り出
される合成樹脂製の帯状体42を，該マンホール21の開口
部21a近傍に配設された動力ユニット33から伝達される
駆動力により螺旋状に巻回し，巻回された帯状体42の幅
方向の一方の端部を，新たに製管機30内に導入される帯
状体42の幅方向端部に液密に接着して，螺旋管40を形成
する。本発明方法では形成された螺旋管はこの後に，液
体と接触されるので，幅方向端部を接着する手段として
接着剤を使用することなく，例えば，幅方向端部をブチ
ルゴム等のシール剤を介して接着する方法を用いること
により，液体による悪影響を受けることが少なくなって
好ましい。該製管機30にて形成された螺旋管40は，その
先端から順次下水管10内へ導入され，該下水管10内を下
流側方向に向かって，回転しつつ推進される。In the method of the present invention, a spiral pipe made of synthetic resin is mounted in such a sewer pipe 10. First, the upstream manhole 21
A pipe-making machine is provided inside. The pipe making machine 30 includes a synthetic resin strip 42 fed from a drum 41 arranged above the opening 21a of the manhole 21, and a power unit 33 arranged near the opening 21a of the manhole 21. It is spirally wound by the driving force transmitted from the one end in the width direction of the wound strip 42 to the end in the width direction of the strip 42 newly introduced into the pipe making machine 30. Liquid-tightly bonded to form the spiral tube 40. Since the spiral tube formed in the method of the present invention is subsequently brought into contact with a liquid, without using an adhesive as a means for adhering the widthwise ends, for example, a sealing agent such as butyl rubber is applied to the widthwise ends. It is preferable to use the method of adhering through so that the liquid is less likely to be adversely affected. The spiral pipe 40 formed by the pipe making machine 30 is sequentially introduced into the sewer pipe 10 from its tip, and is propelled while rotating in the sewer pipe 10 in the downstream direction.
マンホール21内に製管機30を配設する場合には，必要に
応じて，該マンホール21の上流側に配設された下水管11
の下流側端部を止水栓13にて封止してもよい。When the pipe making machine 30 is installed in the manhole 21, if necessary, the sewer pipe 11 installed upstream of the manhole 21.
The downstream end of the may be sealed with the water stopcock 13.
さて，該製管機30により螺旋管を形成するに際し，下流
側マンホール22と下水管10の下流側端部との連設部に止
水堰14を配設し，下水管10内に所定量の液体例えば下水
60を滞留させる。該下水60の滞留量は，下水管10の下部
内周面が略全域にわたって覆われる程度である。By the way, when forming a spiral pipe by the pipe making machine 30, a water stop weir 14 is arranged at the connecting portion between the downstream manhole 22 and the downstream end of the sewer pipe 10, and a predetermined amount is provided in the sewer pipe 10. Liquids such as sewage
Hold 60. The retention amount of the sewage 60 is such that the lower inner peripheral surface of the sewage pipe 10 is covered over substantially the entire area.
このような状態で，製管機30により螺旋管40の先端部を
形成する。そして，その先端部に止水板51を内嵌し，該
止水板51と螺旋管40内周面とを液密にシールする。次い
で，螺旋管40先端に案内具52を取付ける。該案内具52
は，例えば中空三角錐状をしており，その底面が螺旋管
40先端に，例えば粘着テープにて固定される。このよう
に螺旋管先端に三角錐状の案内具52を取付けると，下水
管10の内周面にゴミ等の滞留物が付着していても，この
案内具52が滞留物を乗り越え得るため，該滞留物により
螺旋管の直進が停止されることなく好ましい。この案内
具は本発明に好適に用いられるばかりではなく，従来の
液体を滞留しない方法に用いても効果がある。尚，この
案内具52は先端が細くなる形状であればよく，例えば半
球殻状であってもよい。また案内具が通水性のない面で
形成されている場合には，止水板51を省略してもよい。
該案内具52の頂部には，軸心に沿って係止部材52aが回
転可能に配設されている。該係止部材52aは，案内具52
の頂部を貫通しており，案内具52の外側に位置する端部
に，ロープ53の一端が係止される。該ロープ53は，下流
側のマンホール22の下部に回転可能に配設された滑車54
に係合されて，該マンホール22における開口部22aの上
方に回転可能に配設された巻取りリール55に巻回されて
いる。In this state, the tip end of the spiral tube 40 is formed by the pipe making machine 30. Then, a water blocking plate 51 is fitted into the tip portion thereof, and the water blocking plate 51 and the inner peripheral surface of the spiral tube 40 are liquid-tightly sealed. Next, the guide tool 52 is attached to the tip of the spiral tube 40. The guide tool 52
Has, for example, a hollow triangular pyramid shape and the bottom surface is a spiral tube.
It is fixed to the tip of 40 with an adhesive tape, for example. When the triangular pyramid-shaped guide tool 52 is attached to the tip of the spiral pipe in this way, the guide tool 52 can get over the accumulated matter even if the accumulated matter such as dust adheres to the inner peripheral surface of the sewer pipe 10. It is preferable that the stay tube does not stop the straight movement of the spiral tube. This guide tool is not only preferably used in the present invention, but also effective when used in a conventional method in which liquid is not retained. The guide 52 may have any shape as long as its tip is narrow, and may have a hemispherical shell shape, for example. Further, when the guide is formed by a surface that does not pass water, the water blocking plate 51 may be omitted.
A locking member 52a is rotatably arranged on the top of the guide 52 along the axis. The locking member 52a is a guide 52
One end of the rope 53 is locked to the end portion which penetrates the top of the guide and is located outside the guide tool 52. The rope 53 is a pulley 54 rotatably arranged below the manhole 22 on the downstream side.
And is wound around a take-up reel 55 rotatably disposed above the opening 22a in the manhole 22.
このような状態で，製管機30は駆動され，該製管機30は
帯状体42を螺旋状に巻回して螺旋管を製造する。製造さ
れた螺旋管40は，順次，下水管10内に直接導入される。
該下水管10内に導入された螺旋管40は，下水管10内に滞
留された下水60上に位置することになるため浮力が作用
した状態となり，製管機30により，回転されつつ下流側
に向かって推進される。水深が深くなると螺旋管40は浮
遊した状態となる。In such a state, the pipe manufacturing machine 30 is driven, and the pipe manufacturing machine 30 spirally winds the strip-shaped body 42 to manufacture a spiral tube. The manufactured spiral pipe 40 is sequentially introduced directly into the sewer pipe 10.
Since the spiral pipe 40 introduced into the sewage pipe 10 is located on the sewage 60 accumulated in the sewage pipe 10, the buoyancy acts and the pipe making machine 30 rotates the downstream side. Be propelled towards. When the water depth becomes deep, the spiral tube 40 becomes in a floating state.
螺旋管40が下水管10内を推進するに伴い，その先端に案
内具52を介して係止されたロープ53は巻き取りリール55
の回転により，順次，巻き取られる。その結果，螺旋管
40の先端は，ロープ53に案内されて，下水管10内を下水
60による浮力が作用した状態で，軸方向に沿って略真直
に推進される。As the spiral pipe 40 is propelled in the sewer pipe 10, the rope 53 locked to the tip of the spiral pipe 40 via the guide tool 52 is wound on the take-up reel 55
It is wound one by one by the rotation of. As a result, the spiral tube
The tip of the 40 is guided by the rope 53 to sewage in the sewer pipe 10.
With the buoyancy exerted by 60, it is propelled almost straight along the axial direction.
螺旋管40先端は，止水板51にて液密にシールされている
ため、螺旋管40の推進時に該先端から螺旋管40内に下水
60が浸入するおそれがなく，螺旋管40は下水60による浮
力が作用した状態を維持する。The tip of the spiral tube 40 is liquid-tightly sealed by the water stop plate 51, so that when the spiral tube 40 is propelled, sewage flows into the spiral tube 40 from the tip.
There is no risk of the infiltration of 60, and the spiral tube 40 maintains the state in which the buoyancy of the sewage 60 acts.
螺旋管40は，このように，摩擦係数が高い下水管10内周
面に直接接触することなく，摩擦係数の低い下水60と接
触しつつ推進されるため，螺旋管40に加わる摩擦力が著
しく低下する。また，螺旋管40は下水60による浮力が作
用するため，螺旋管40に加わる摩擦力はより一層低下
し，螺旋管40は円滑に下水管10内に装着される。Since the spiral pipe 40 is propelled while coming into contact with the sewage 60 having a low friction coefficient without directly contacting the inner peripheral surface of the sewage pipe 10 having a high friction coefficient, the frictional force applied to the spiral pipe 40 is remarkably increased. descend. Moreover, since the buoyancy of the sewage 60 acts on the spiral pipe 40, the frictional force applied to the spiral pipe 40 is further reduced, and the spiral pipe 40 is smoothly mounted in the sewer pipe 10.
下水管10内には所定量の下水60が滞留していればよく，
止水堰14にて所定量の下水60を堰き止めた状態で，例え
ば，枝管16を介して水を下水管10内に通流させ，止水堰
14から余分の水をオーバーフローさせる構成としてもよ
い。この場合，下水管10内の下水60の一部は，該下水管
10内を通流するため，螺旋管40は，通流する下水60にて
推進力を受け，螺旋管40はより一層円滑に下水管10内へ
装着される。なお，本発明において滞留とは，止水堰14
を配設することなしに枝管16を介して所定量の水を通流
させることをも包含するものである。It is sufficient that a certain amount of sewage 60 is retained in the sewer pipe 10,
With a predetermined amount of sewage 60 blocked by the stop water weir 14, for example, water is allowed to flow through the branch pipe 16 into the sewage pipe 10,
It may be configured such that excess water overflows from 14. In this case, part of the sewage 60 in the sewage pipe 10 is
Since the spiral pipe 40 flows through the inside of the sewage pipe 10, the spiral pipe 40 receives a propulsive force by the flowing sewage 60, and the spiral pipe 40 is mounted in the sewage pipe 10 more smoothly. In addition, in the present invention, the term “retention” refers to a water stop weir 14
It also includes allowing a predetermined amount of water to flow through the branch pipe 16 without arranging.
螺旋管40は，下水60上により浮力が作用した状態で回転
されつつ下水管10内を推進されているが，その先端は，
ロープ53にて案内されているため，螺旋管40は幅方向に
振れることなく，従って，下水管10内周面に接触するこ
となく，略真直に推進される。The spiral pipe 40 is propelled in the sewer pipe 10 while being rotated with buoyancy acting on the sewer 60, but its tip is
Since the spiral pipe 40 is guided by the rope 53, the spiral pipe 40 is propelled substantially straight without swinging in the width direction and therefore without contacting the inner peripheral surface of the sewer pipe 10.
（発明の効果） 本発明方法は，このように、下水管内に滞留された液体
により螺旋管に浮力を作用させつつ，該螺旋管を下水管
等の鞘管内へ推進させるものであるため，推進時に螺旋
管に加わる反力は著しく軽減され，螺旋管は円滑に鞘管
内に導入される。また，螺旋管は鞘管内周面に直接，接
触する機会が少ないため，螺旋管が破損するおそれもな
い。(Effects of the Invention) Since the method of the present invention thus causes the spiral pipe to be buoyant by the liquid retained in the sewer pipe, the spiral pipe is propelled into the sheath pipe such as the sewer pipe. At times, the reaction force applied to the spiral tube is significantly reduced, and the spiral tube is smoothly introduced into the sheath tube. Further, since the spiral tube has few chances of directly contacting the inner peripheral surface of the sheath tube, there is no possibility that the spiral tube will be damaged.
第１図は本発明方法の実施状態の説明図である。 10……下水管,14……止水堰,21,22……マンホール,30…
…製管機,40……螺旋管,42……帯状体,51……止水板,52
……案内具,53……ロープ,60……下水。FIG. 1 is an explanatory diagram of an implementation state of the method of the present invention. 10 …… Sewer pipe, 14 …… Still weir, 21,22 …… Manhole, 30…
… Pipe making machine, 40 …… Spiral tube, 42 …… Strip, 51… Water stop plate, 52
…… Guide tools, 53 …… Rope, 60 …… Sewage.
Claims (1)
旋管を製造しつつ，製造された螺旋管を連続的に鞘管内
に導入することにより，螺旋管を鞘管に装着する方法で
あり， 鞘管内に所定量の液体を滞留させる工程と， 製管機にて製造される螺旋管先端を液密に封止する工程
と， 液体が滞留した鞘管内に螺旋管を導入して，該液体によ
り螺旋管に浮力を作用させた状態で該螺旋管を推進させ
る工程と， を包含する螺旋管の鞘管への装着方法。1. A spiral pipe is attached to a sheath pipe by continuously introducing the manufactured spiral pipe into the sheath pipe while manufacturing the spiral pipe by spirally winding a band-shaped body with a pipe making machine. The method is to retain a predetermined amount of liquid in the sheath pipe, to seal the tip of the spiral pipe manufactured by a pipe-making machine in a liquid-tight manner, and to introduce the spiral pipe into the sheath pipe in which the liquid remains. And a step of propelling the spiral tube in a state where buoyancy is applied to the spiral tube by the liquid, and a method of mounting the spiral tube on the sheath tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62090048A JPH0756129B2 (en) | 1987-04-13 | 1987-04-13 | How to attach the spiral tube to the sheath tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62090048A JPH0756129B2 (en) | 1987-04-13 | 1987-04-13 | How to attach the spiral tube to the sheath tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63255425A JPS63255425A (en) | 1988-10-21 |
| JPH0756129B2 true JPH0756129B2 (en) | 1995-06-14 |
Family
ID=13987732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62090048A Expired - Lifetime JPH0756129B2 (en) | 1987-04-13 | 1987-04-13 | How to attach the spiral tube to the sheath tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0756129B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014031004A (en) * | 2012-07-12 | 2014-02-20 | Sekisui Chem Co Ltd | Method for producing regeneration pipe |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4638288B2 (en) * | 2004-07-21 | 2011-02-23 | 株式会社栗本鐵工所 | Saya tube propulsion method |
-
1987
- 1987-04-13 JP JP62090048A patent/JPH0756129B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014031004A (en) * | 2012-07-12 | 2014-02-20 | Sekisui Chem Co Ltd | Method for producing regeneration pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63255425A (en) | 1988-10-21 |
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