JP2608900B2 - How to fix the intubation to the sheath tube - Google Patents
How to fix the intubation to the sheath tubeInfo
- Publication number
- JP2608900B2 JP2608900B2 JP62245635A JP24563587A JP2608900B2 JP 2608900 B2 JP2608900 B2 JP 2608900B2 JP 62245635 A JP62245635 A JP 62245635A JP 24563587 A JP24563587 A JP 24563587A JP 2608900 B2 JP2608900 B2 JP 2608900B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- sheath tube
- intubation
- spacer
- sheath
- 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
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- Sewage (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は，例えば老巧化し下水管に合成樹脂製の螺旋
管を装着して更生させる場合に，鞘管に対して内挿管を
所定の傾斜角度となるように固定する方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to, for example, when aged sewer pipes are rehabilitated by attaching a synthetic resin helical pipe to a sewage pipe, the insertion pipe is inserted into the sheath pipe in a predetermined manner. The present invention relates to a method of fixing the tilt angle.
（従来の技術） ヒューム管等の下水管は，腐食性ガス，土圧等の影響
により老巧化が進み，ひび割れ，漏水等を招来するおそ
れがある。このため，老巧化した下水管は，合成樹脂製
螺旋管のような内挿管を下水管内に装着することにより
更生される。下水管内に装着される内挿管の口径は，下
水管の老巧の程度，下水量などにより選定され，老巧化
の激しい下水管では，該下水管に対して比較的小径の内
挿管が用いられる。この場合，内挿管と下水管との間隙
にはエアーモルタル等の裏込剤が充填され，下水管が補
強される。しかし，内挿管は裏込剤の浮力により浮き上
がるおそれがあり，下水管と内挿管との口径差が大きく
なれば，下水管に対する内挿管の姿勢が大きく変化する
おそれがある。甚だしい場合には，内挿管の下流側がそ
の上流側よりも上方に位置し，下水の通流が不能にな
る。(Prior Art) Sewage pipes such as fume pipes are aging due to the influence of corrosive gas, earth pressure, and the like, and may cause cracks, water leakage, and the like. For this reason, an aged sewer pipe is rehabilitated by installing an intubation tube such as a synthetic resin spiral tube inside the sewer pipe. The diameter of the intubation installed in the sewer pipe is selected according to the degree of aging of the sewer pipe, the amount of sewage, etc. In the case of severely deteriorated sewer pipes, a relatively small-diameter intubation for the sewer pipe is used. Can be In this case, the gap between the intubation tube and the sewer pipe is filled with a backing agent such as air mortar to reinforce the sewer pipe. However, the intubation may rise due to the buoyancy of the backing agent, and if the caliber difference between the sewer and the intubation increases, the posture of the intubation relative to the sewer may change significantly. In severe cases, the downstream side of the intubation is located above the upstream side, and the flow of sewage is disabled.
（発明が解決しようとする問題点） 本発明は上記従来の問題を解決するものであり，その
目的は，鞘管に対し内挿管を所定の傾斜角度に容易に固
定し得る方法を提供することにある。(Problems to be Solved by the Invention) The present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a method capable of easily fixing an intubation tube to a sheath tube at a predetermined inclination angle. It is in.
（問題点を解決するための手段） 本発明は，鞘管に対して所定の傾斜角度となるように
内挿管を固定する方法であり，鞘管に対して所定の傾斜
角度となるように内挿管を固定する方法であり，鞘管の
両端にそれぞれ支持部材を立設する工程と，該両支持部
材に帯状シートの一面に鉛直方向の長さが所定の割合で
長手方向に順次変化するように複数のスペーサが所定ピ
ッチで並設された勾配規定具の両端を張設して，帯状シ
ートの他面を鞘管の上部内周面に密着させる工程と，鞘
管内に内挿管を位置させる工程と，鞘管と内挿管との間
隙に裏込剤を充填して内挿管を浮上させ，前記スペーサ
を鞘管の上部内周面および内挿管の上部外周面との間に
介在させる工程と，裏込剤を硬化させる工程と工程と，
鞘間内に内挿間を位置させる工程と，鞘管と内挿管との
間隙に裏込剤を充填して内挿管を浮上させ，前記スペー
サを鞘管の上部内周面および内挿管の上部外周面とに押
付けて両者の間に介在させる工程と，裏込剤を硬化させ
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。(Means for Solving the Problems) The present invention is a method for fixing an intubation tube so as to have a predetermined inclination angle with respect to a sheath tube. This is a method of fixing an intubation, in which a supporting member is erected at both ends of a sheath tube, and a length in a vertical direction on one surface of a band-shaped sheet is sequentially changed on both supporting members in a longitudinal direction at a predetermined ratio. A step of stretching both ends of a gradient defining tool in which a plurality of spacers are juxtaposed at a predetermined pitch so that the other surface of the band-shaped sheet is in close contact with the upper inner peripheral surface of the sheath tube, and positioning the intubation tube in the sheath tube. Filling a gap between the sheath tube and the intubation with a backing agent to float the intubation, and interposing the spacer between the upper inner peripheral surface of the sheath tube and the upper outer peripheral surface of the intubation tube; , A step and a step of curing the backing agent,
Positioning the interpolated space between the sheaths, filling the gap between the sheath tube and the inner tube with a backing agent to float the inner tube, and placing the spacer on the upper inner peripheral surface of the sheath tube and the upper portion of the inner tube. The method includes a step of pressing against the outer peripheral surface to interpose between them, and a step of curing the backing agent, thereby achieving the above object.
（実施例） 以下に本発明を実施例について説明する。(Example) Hereinafter, the present invention will be described with reference to examples.
第１図〜第３図は本発明方法の実施状態を示す鞘管の
縦断面図である。本発明方法は，第１図に示すように，
例えば，老巧化した下水管である鞘管10内に，合成樹脂
製の螺旋管である内挿管20を装着して鞘管10を更生する
際に実施される。1 to 3 are longitudinal sectional views of a sheath tube showing an embodiment of the method of the present invention. The method of the present invention, as shown in FIG.
For example, this is performed when the sheath tube 10 is rehabilitated by mounting an intubation tube 20 which is a spiral tube made of synthetic resin in the sheath tube 10 which is an aged sewer pipe.
本発明方法は，まず，第２図に示すように，該鞘管10
内に装着される内挿管20の，該鞘管10に対する軸方向の
傾斜角度を規定する勾配規定具30を鞘管10内に配設す
る。該勾配規定具30は，第４図に示すように，帯状シー
トと，該帯状シート31の一面に長手方向に所定のピッチ
で立設された複数のスペーサ32,32,…とを有する。帯状
シート31は，鞘管10の上部内周面に密着するように配設
される。該帯状シート31は，例えばメッシュシートが用
いられる。各スペーサ32は，第５図に示すように，帯状
シート31側側面が，鞘管10内周面に嵌合し得るように円
弧状に突出しており，他方の側面は，内挿管20外周面に
嵌合し得るように円弧状に窪んでいる。該勾配規定具30
は，各スペーサ32が略鉛直状態となるように，鞘管10内
に装着されるが，各スペーサ32は，帯状シート31からの
突出量（すなわち，鞘管10内に装着された場合の鉛直方
向長さ）が，長手方向に所定の割合で順次変化してい
る。各スペーサ32の配設ピッチと帯状シートからの突出
量は，鞘管10内に装着される内挿管20の傾斜角度に対応
して定められる。各スペーサ32の帯状シート31との接着
側部分には，幅方向に一対の透孔32aおよび32aが開設さ
れている。各スペーサ32は，例えば発泡スチロールを加
工して得られる。First, as shown in FIG.
A gradient defining tool 30 for defining an axial inclination angle of the intubation tube 20 mounted inside the sheath tube 10 with respect to the sheath tube 10 is provided in the sheath tube 10. As shown in FIG. 4, the gradient defining member 30 has a band-shaped sheet and a plurality of spacers 32, 32,... Erected on one surface of the band-shaped sheet 31 at a predetermined pitch in the longitudinal direction. The belt-shaped sheet 31 is disposed so as to be in close contact with the upper inner peripheral surface of the sheath tube 10. As the belt-like sheet 31, for example, a mesh sheet is used. As shown in FIG. 5, each spacer 32 has an arc-shaped protruding side so that the side surface of the strip-shaped sheet 31 can be fitted to the inner peripheral surface of the sheath tube 10, and the other side surface is the outer peripheral surface of the insertion tube 20. It is depressed in an arc shape so that it can be fitted into. The gradient defining tool 30
Is mounted in the sheath tube 10 so that each spacer 32 is in a substantially vertical state. However, each spacer 32 projects from the band-shaped sheet 31 (that is, the vertical length when the spacer 32 is mounted in the sheath tube 10). In the longitudinal direction) are sequentially changed at a predetermined ratio in the longitudinal direction. The arrangement pitch of each spacer 32 and the amount of protrusion from the strip-shaped sheet are determined in accordance with the inclination angle of the insertion tube 20 mounted in the sheath tube 10. A pair of through-holes 32a and 32a are opened in the width direction at the portion of each spacer 32 that is bonded to the band-shaped sheet 31. Each spacer 32 is obtained by processing styrene foam, for example.
帯状シート31における幅方向の各側部は袋状になって
おり，各袋状部分には，例えばピアノ線でなる線材33お
よび33がそれぞれ挿通されている。Each side in the width direction of the band-shaped sheet 31 is formed in a bag shape, and wires 33 and 33 made of, for example, a piano wire are inserted into each bag-shaped portion.
このような勾配規定具30は，第２図に示すように，帯
状シート31が上側，各スペーサ32が下側となるように，
鞘管10内に位置され，各線材33および33の一方の端部
を，鞘管10の一方の端部が連結されたマンホール41内の
支持部材51に係止し，各線材33の他方の端部を鞘管10の
他方の端部が連結されたマンホール42内の支持部材52
に，ターンバックル60を介して係止する。そして，各タ
ーンバックル60を回転させて，各線材33を張設し，帯状
シート31を鞘管10の上部内周面に密着させる。これによ
り，帯状シート31に配設された各スペーサ32の上面は鞘
管10の上部内周面に帯状シート31を介して密着される。
各スペーサ32は，帯状シート31の一方の端部側に配設さ
れたものから，所定の割合で順次，鉛直方向に長さが短
く（または長く）なっており，各スペーサ32の底面は，
鞘管10に対して所定の傾斜角度となった勾配を形成す
る。As shown in FIG. 2, such a gradient defining tool 30 is arranged such that the band-shaped sheet 31 is on the upper side and each spacer 32 is on the lower side.
One end of each of the wires 33 and 33 is located in the sheath tube 10 and is engaged with a support member 51 in a manhole 41 to which one end of the sheath tube 10 is connected. One end of the support member 52 in the manhole 42 to which the other end of the sheath tube 10 is connected.
Then, it is locked via the turnbuckle 60. Then, each turnbuckle 60 is rotated to stretch each wire 33, and the band-shaped sheet 31 is brought into close contact with the upper inner peripheral surface of the sheath tube 10. Thereby, the upper surface of each spacer 32 disposed on the band-shaped sheet 31 is brought into close contact with the upper inner peripheral surface of the sheath tube 10 via the band-shaped sheet 31.
Each spacer 32 has a shorter (or longer) length in the vertical direction at a predetermined ratio sequentially from the one disposed on one end side of the belt-shaped sheet 31, and the bottom surface of each spacer 32 is
A gradient having a predetermined inclination angle with respect to the sheath tube 10 is formed.
このような状態で，例えば，一方のマンホール41内に
製管機を設置し，地上に設置されたコイルから送給され
る合成樹脂製の帯状体を螺旋状に巻回して，鞘管10内に
内挿管20として螺旋管を順次形成する。そして，第３図
に示すように，所定の長さの螺旋管が形成されて，鞘管
10内に内挿管20が位置されると，鞘管10の各端面および
内挿管10の各端面を閉塞しておき，鞘管10と内挿管20と
の管隙内にセメントミルク等の裏込剤70を注入する。鞘
管10と内挿管20との間隙内に裏込剤70が注入されると，
内挿管20は，浮力により裏込剤70上に浮上し，第１図に
示すように，内挿管20の上部外周面は，各スペーサ32の
底面の円弧状に窪んだ部分に嵌合し，各スペーサ32は，
鞘管10と内挿管20とに押付けられ，両者の間に介在され
る。これにより，内挿管20は，鞘管10に対して，所定の
傾斜角度となる。このような状態でさらに裏込剤70を注
入すると，裏込剤70は，各スペーサ32の上部に開設され
た透孔32a内を通過して，各スペーサ間に入り込み，ま
た，メッシュ状の帯状シート31の各メッシュ内に入り込
む。これにより，各スペーサ32には，裏込剤70の浮力に
よる内挿管20からの圧力を裏込剤にて支えられるため，
破損するおそれがない。In such a state, for example, a pipe-making machine is installed in one manhole 41, and a synthetic resin band fed from a coil installed on the ground is spirally wound, and the inside of the sheath tube 10 is wound. A helical tube is sequentially formed as the intubation tube 20. Then, as shown in FIG. 3, a spiral tube having a predetermined length is formed, and the sheath tube is formed.
When the intubation 20 is positioned within the tube 10, the end surfaces of the sheath tube 10 and the end surfaces of the intubation tube 10 are closed, and the back of cement milk or the like is inserted into the space between the sheath tube 10 and the intubation tube 20. The agent 70 is injected. When the backing agent 70 is injected into the gap between the sheath tube 10 and the intubation tube 20,
The intubation tube 20 floats on the backing agent 70 by buoyancy, and as shown in FIG. 1, the upper outer peripheral surface of the intubation tube 20 fits into an arc-shaped concave portion on the bottom surface of each spacer 32, Each spacer 32
It is pressed against the sheath tube 10 and the intubation tube 20 and interposed between them. Thereby, the intubation 20 has a predetermined inclination angle with respect to the sheath tube 10. When the backing agent 70 is further injected in such a state, the backing agent 70 passes through the through-holes 32a formed in the upper portions of the spacers 32, enters between the spacers, and forms a mesh-like band. The sheet 31 enters each mesh. This allows each spacer 32 to support the pressure from the intubation 20 due to the buoyancy of the backing agent 70 with the backing agent.
There is no risk of damage.
内挿管20と鞘管10との間隙内に裏込剤70が充填される
と，充填された裏込剤70が硬化される。これにより内挿
管20は，鞘管10に対して所定の傾斜角度にて固定され
る。勾配規定具30は裏込剤70内に埋没される。When the backing agent 70 is filled in the gap between the inner tube 20 and the sheath tube 10, the filled backing agent 70 is cured. Thereby, the intubation tube 20 is fixed at a predetermined inclination angle with respect to the sheath tube 10. The gradient defining tool 30 is buried in the backing agent 70.
なお，上記実施例において勾配規定具30における各ス
ペーサ32を，発泡ウレタンにて形成する場合には，第５
図に破線で示すように，鞘管10内周面に嵌合し得るよう
に上面が円弧状に突出した上部32bと，内挿管20外周面
に嵌合し得るように下面が円弧状に窪んだ下部32cと，
両者の間の直方体状の中央部32dとを別体に構成し，こ
れらを一体的に接着する構成としてもよい。この場合
は，上部32bおよび下部32cは各スペーサ32において，そ
れぞれ同一の形状であり，直方体状の中央部32dの高さ
を各スペーサ32の長さに合わせて変更すればよいため
に，各スペーサ32を容易に製造し得る。In the above embodiment, when each spacer 32 of the gradient defining tool 30 is formed of urethane foam, the fifth
As shown by a broken line in the figure, an upper portion 32b whose upper surface protrudes in an arc shape so as to be fitted to the inner peripheral surface of the sheath tube 10, and a lower surface is depressed in an arc shape so as to be fit to the outer peripheral surface of the inner tube 20. The lower part 32c,
A configuration may be adopted in which the rectangular parallelepiped central portion 32d between the two is formed separately, and these are integrally bonded. In this case, the upper portion 32b and the lower portion 32c have the same shape in each spacer 32, and the height of the rectangular parallelepiped central portion 32d may be changed according to the length of each spacer 32. 32 can be easily manufactured.
実験例 直径500mm,長さ120m,勾配が水平に対して３パーミル
の下水管（ヒューム管）である鞘管に，直径が250mmの
合成樹脂製の螺旋管を内挿管として，第１図〜第５図に
示す実施例にて，水平に対して８パーミルの勾配となる
ように固定した。鞘管の低くなった一端から3m毎に固定
された内挿管の中心位置と，設計上の中心位置との水平
方向および垂直方向の偏差を測定した。その測定結果を
表１に示す。Experimental Example A spiral tube made of synthetic resin with a diameter of 250 mm was inserted into a sheath tube that was a sewer pipe (fume pipe) with a diameter of 500 mm, a length of 120 m, and a gradient of 3 parmils with respect to the horizontal. In the embodiment shown in FIG. 5, it was fixed so as to have an inclination of 8 per mil to the horizontal. The horizontal and vertical deviations between the center position of the intubation fixed at every 3 m from the lower end of the sheath tube and the designed center position were measured. Table 1 shows the measurement results.
（発明の効果） 本発明方法によれば，両側部に線剤が挿通された帯状
シートの一面に鉛直方向の長さが所定の割合で長手方向
に順次変化するように複数のスペーサが所定ピッチで並
設された勾配規定具を，鞘管の両端に立設した支持部材
に張設することにより，老巧化して内面が凹凸になった
鞘管であったり，小口径の鞘管であって作業者がその内
部に入ることができない場合であっても，鞘管の上部内
周面に複数のスペーサを鉛直方向長さが順次変化するよ
うに配設することができる。そして，裏込剤の浮力によ
り浮上がる内挿管と鞘管との間に介在させた複数のスペ
ーサにより，内挿管を鞘管に対して所定の傾斜角度に配
設することができる。このため，作業精度は著しく向上
し，しかも内挿管を鞘管に対して傾斜状態にて容易に固
定させることができる。 (Effect of the Invention) According to the method of the present invention, a plurality of spacers are arranged on a surface of a strip-shaped sheet having a wire material inserted on both sides at a predetermined pitch so that the length in the vertical direction changes sequentially in the longitudinal direction at a predetermined ratio. By attaching the gradient-determining tools juxtaposed in the above to supporting members erected at both ends of the sheath tube, the sheath tube may become older and have an irregular inner surface, or may be a small-diameter sheath tube. Even if the worker cannot enter the inside of the sheath tube, a plurality of spacers can be arranged on the inner peripheral surface of the upper portion of the sheath tube so that the length in the vertical direction changes sequentially. The plurality of spacers interposed between the intubation tube and the sheath tube that float due to the buoyancy of the backing agent allow the intubation tube to be disposed at a predetermined inclination angle with respect to the sheath tube. For this reason, the working accuracy is significantly improved, and the intubation can be easily fixed in an inclined state with respect to the sheath tube.
第１図〜第３図は本発明方法の実施状態をそれぞれ示す
鞘管の断面図，第４図は勾配規定具の斜視図，第５図は
スペーサの正面図，第６図は本発明方法の別の実施例に
おける実施状態をそれぞれ示す鞘管の断面図である。 10,10′……鞘管,20……内挿管,30……勾配規定具,31…
…帯状シート,32……スペーサ,33……線材,41,42……マ
ンホール,70……裏込剤。1 to 3 are sectional views of a sheath tube showing an embodiment of the method of the present invention, FIG. 4 is a perspective view of a gradient defining tool, FIG. 5 is a front view of a spacer, and FIG. It is sectional drawing of the sheath tube which shows the implementation state in another Example of each. 10, 10 '... Sheath tube, 20 ... Intubation, 30 ... Gradient defining tool, 31 ...
... Strip-like sheet, 32 ... Spacer, 33 ... Wire, 41,42 ... Manhole, 70 ... Backing agent.
Claims (5)
内挿管を固定する方法であり， 鞘管の両端にそれぞれ支持部材を立設する工程と， 該両支持部材に帯状シートの一面に鉛直方向の長さが所
定の割合で長手方向に順次変化するように複数のスペー
サが所定ピッチで並設された勾配規定具の両端を張設し
て，帯状シートの他面を鞘管の上部内周面に密着させる
工程と， 鞘管内に内挿管を位置させる工程と， 鞘管と内挿管との間隙に裏込剤を充填して内挿管を浮上
させ，前記スペーサを鞘管の上部内周面および内挿管の
上部外周面との間に介在させる工程と， 裏込剤を硬化させる工程と， を包含する鞘管に対する内挿管の固定方法。1. A method of fixing an insertion tube so as to have a predetermined inclination angle with respect to a sheath tube, comprising: erecting support members at both ends of the sheath tube; A plurality of spacers are stretched at one end on both sides of a gradient defining tool having a plurality of spacers arranged at a predetermined pitch so that the length in the vertical direction is sequentially changed in the longitudinal direction at a predetermined ratio. Bringing the intubation into the sheath tube, filling the gap between the sheath tube and the intubation with a backing agent, floating the intubation tube, and attaching the spacer to the sheath tube. A method of fixing an intubation to a sheath tube, comprising the steps of: interposing between an upper inner peripheral surface and an upper outer peripheral surface of an intubation; and curing a backing agent.
成樹脂製の螺旋管である特許請求の範囲第１項に記載の
鞘管に対する内挿管の固定方法。2. The method according to claim 1, wherein the sheath tube is a sewer tube, and the inner tube is a helical tube made of synthetic resin.
面に嵌合し得るように円弧状に窪んでいる特許請求の範
囲第１項に記載の鞘管に対する内挿管の固定方法。3. The method according to claim 1, wherein a lower surface of the spacer is concavely formed in an arc shape so as to be fitted to an upper outer peripheral surface of the inner tube.
許請求の範囲第１項または第３項に記載の鞘管に対する
内挿管の固定方法。4. The method according to claim 1, wherein said spacer is made of polystyrene foam.
材がそれぞれ挿通されている特許請求の範囲第１項に記
載の鞘管に対する内挿管の固定方法。5. The method according to claim 1, wherein a wire is inserted through each side of the band-shaped sheet in the width direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62245635A JP2608900B2 (en) | 1987-09-28 | 1987-09-28 | How to fix the intubation to the sheath tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62245635A JP2608900B2 (en) | 1987-09-28 | 1987-09-28 | How to fix the intubation to the sheath tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6483740A JPS6483740A (en) | 1989-03-29 |
| JP2608900B2 true JP2608900B2 (en) | 1997-05-14 |
Family
ID=17136591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62245635A Expired - Lifetime JP2608900B2 (en) | 1987-09-28 | 1987-09-28 | How to fix the intubation to the sheath tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2608900B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3547298B2 (en) * | 1997-10-28 | 2004-07-28 | 株式会社クボタ | Rehabilitation of sewer pipes during operation |
| JP4189159B2 (en) * | 2002-03-07 | 2008-12-03 | 積水化学工業株式会社 | Rehabilitation pipe construction method in pipe |
| JP3754443B1 (en) * | 2004-11-30 | 2006-03-15 | 日特建設株式会社 | Endoscopic intubation method and sheath tube repair structure |
| JP6018963B2 (en) * | 2013-03-29 | 2016-11-02 | 積水化学工業株式会社 | Method for constructing gradient correction pipeline and support used therefor |
| JP2018109433A (en) * | 2017-01-05 | 2018-07-12 | 株式会社湘南合成樹脂製作所 | Pipe regeneration method |
| JP7306619B2 (en) * | 2018-12-26 | 2023-07-11 | 中川企画建設株式会社 | Main pipe conveying device into sheath pipe |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5362313A (en) * | 1976-11-16 | 1978-06-03 | Mitsubishi Jushi Eng | Method of laying inner pipe in sheath pipe |
| JPS54136745A (en) * | 1978-04-14 | 1979-10-24 | Kubota Ltd | Manhole installing structure for sewer pipe passage |
| JPS5527935A (en) * | 1978-08-21 | 1980-02-28 | Toshiba Corp | Ultrasonic wave flow meter |
| JPS608390B2 (en) * | 1980-02-29 | 1985-03-02 | 積水化学工業株式会社 | Pipe installation method |
| JPS5796142A (en) * | 1980-12-02 | 1982-06-15 | Kasei Co C I | Method and apparatus for installing inner pipe in sleeve pipe |
| JPS57174543A (en) * | 1981-04-22 | 1982-10-27 | Sakai Hozen Kogyo Kk | Renewing of old water service pipe |
| JPS5867181U (en) * | 1981-10-30 | 1983-05-07 | 岡村建興株式会社 | Structure of support for buried pipes |
| JPS6114282U (en) * | 1984-06-30 | 1986-01-27 | 株式会社クボタ | Pipe anti-surfacing device |
| JPS6148690A (en) * | 1984-08-16 | 1986-03-10 | 三菱樹脂株式会社 | Lining of existing pipe |
| JPS629417U (en) * | 1985-07-03 | 1987-01-21 | ||
| JPS6220987A (en) * | 1985-07-19 | 1987-01-29 | 足立建設工業株式会社 | Lining execution method in underground buried pipe and execution device thereof |
| JPS6235187A (en) * | 1985-08-08 | 1987-02-16 | 株式会社クボタ | Method of floating preventive construction of piping |
-
1987
- 1987-09-28 JP JP62245635A patent/JP2608900B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6483740A (en) | 1989-03-29 |
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