JPH02186201A - Method for measuring bending degree of pipeline - Google Patents
Method for measuring bending degree of pipelineInfo
- Publication number
- JPH02186201A JPH02186201A JP462589A JP462589A JPH02186201A JP H02186201 A JPH02186201 A JP H02186201A JP 462589 A JP462589 A JP 462589A JP 462589 A JP462589 A JP 462589A JP H02186201 A JPH02186201 A JP H02186201A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- shape
- silicone rubber
- pipeline
- tube
- 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
- 238000000034 method Methods 0.000 title claims description 13
- 238000005452 bending Methods 0.000 title description 3
- 239000011347 resin Substances 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 14
- 239000004945 silicone rubber Substances 0.000 claims abstract description 14
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 6
- 239000003973 paint Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract 2
- 239000002184 metal Substances 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 241000016649 Copaifera officinalis Species 0.000 description 1
- 239000004859 Copal Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、地中に埋設された管路内の形状や屈曲度の測
定方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for measuring the shape and degree of curvature of a pipe buried underground.
（従来の技術）
従来の地中管路位置検出器は、地中管路に流した電流に
よって発生する交番磁界を地上で検知したり、あるいは
地中管路内の導体に通電することによって生ずる磁界を
地上で検知する等の電磁波による方法、また、弾性波（
音波）を地中に送波し、地中管路からの反射波を地上で
探知する弾性波法が採られてきた。(Prior art) Conventional underground pipe position detectors detect alternating magnetic fields generated by current flowing through underground pipes on the ground, or by energizing conductors in underground pipes. Methods using electromagnetic waves, such as detecting magnetic fields on the ground, and methods using elastic waves (
The elastic wave method has been adopted, which involves transmitting sound waves (sound waves) underground and detecting the reflected waves from underground pipes on the ground.
（発明が解決しようとする課題）
前記従来の方法では、まず前者の通電による方法では、
塩化ビニール管やヒユーム管等の非金属管には通用出来
ず、後者の弾性波法では地質の変化が伝播速度の変化を
きたすので、管路の明確な位置を把握出来なかった。ま
た、これら従来のいづれの方法においても、埋設物がふ
くそうしている所では、他の埋設物による反射などの影
響を受け、測定精度が劣るほか、特定の管路の位置をつ
かみにくいという共通の問題を有していた。(Problems to be Solved by the Invention) In the conventional method, firstly, in the former method by energization,
It cannot be applied to non-metallic pipes such as vinyl chloride pipes and humid pipes, and the elastic wave method for the latter cannot clearly determine the location of pipes because geological changes cause changes in propagation speed. In addition, all of these conventional methods have a common problem: in areas where there are many buried objects, measurement accuracy is poor due to the influence of reflections from other buried objects, and it is difficult to determine the location of specific pipes. I had this problem.
（課題を解決するための手段）
本発明は前記課題を解決するためになされたもので、本
発明の実施例を示す第１図〜第３図を用いて説明すると
。(Means for Solving the Problems) The present invention has been made to solve the above problems, and will be explained using FIGS. 1 to 3 showing embodiments of the present invention.
（１）管路１内に可撓性チューブ２を通し、この中にシ
リコンゴム系の樹脂３を流し込み、凝固させた後、前記
可撓性チューブ２ごと管外に引き出し、前記可撓性チュ
ーブ内で凝固したシリコンゴム管の復元力によりＷ路全
体の形状を測定するようにしたものである。(1) Pass the flexible tube 2 through the pipe line 1, pour the silicone rubber resin 3 into it, solidify it, and then pull out the flexible tube 2 together with the flexible tube 2. The shape of the entire W path is measured using the restoring force of the silicone rubber tube solidified inside.
（２）剥離性のよいシリコンゴム系の樹脂塗料４を管路
１内全域に塗布し、凝固させた後、管外に引き出し、前
記凝固して形成されたチューブ内を圧力によってふくら
ませて、管路１内全体の形状を測定するようにしたもの
である。(2) A silicone rubber-based resin paint 4 with good releasability is applied to the entire inside of the pipe 1, solidified, and then pulled out of the pipe, and the inside of the solidified tube is swollen with pressure. The shape of the entire inside of the road 1 is measured.
（３）管路１内に針金状の形状記憶合金６又はチューブ
状の形状記憶樹脂を通し、管路１内の形状を記憶させた
後、管外へ取り出して管路１内全体の形状を測定するよ
うにしたものである。(3) Pass a wire-shaped shape memory alloy 6 or a tube-shaped shape memory resin into the pipe 1 to memorize the shape inside the pipe 1, and then take it out of the pipe to record the entire shape inside the pipe 1. It was designed to be measured.
（作用）
本発明によれば、管路内金域に可撓性のゴム又は樹脂又
は形状記憶合金等を挿入し、管路内の形状を記憶させた
後に取り出して、管路内の形状を測定するようにしたの
で、管路が金属管であるか非金属管であるかを問わず、
その形状及び線形を簡単に３１！Ｉ定し得ることが出来
る。(Function) According to the present invention, a flexible rubber, resin, shape memory alloy, etc. is inserted into the inner metal area of the pipe, and after the shape of the pipe is memorized, it is taken out and the shape of the pipe is changed. Since we decided to measure it, regardless of whether the pipe is a metal pipe or a non-metal pipe,
Its shape and linearity are easily 31! I can be determined.
（実施例）
本発明の第一の実施例においては第１図に示すように、
管路長が数十メートルごとに継ぎ足している通信用ケー
ブル管等のＪｊ１曲度測度測定適しており、数十メート
ルの可撓性チューブ２を自走あるいは牽引する手段を使
って管路１内に通し、その後に前記可撓性チューブの中
にシリコンゴム系の樹脂３を流し込み、凝固させた後、
前記可撓性チューブ内で凝固したシリコンゴムの復元力
により、挿入した管路１内全体の形状を一度に測定する
ものである。(Example) In the first example of the present invention, as shown in FIG.
It is suitable for measuring the curvature of communication cable pipes, etc., where the length of the pipe is added every several tens of meters. After that, silicone rubber-based resin 3 is poured into the flexible tube and solidified, and then
The shape of the entire inside of the inserted pipe 1 is measured at once by the restoring force of the silicone rubber solidified within the flexible tube.
本発明の第二の実施例においては第２図に示すように、
ビル内に配管されているガス管や水道管の屈曲度や、内
側の凹凸をａ＋ｑ定するのに適しており、剥離性の良い
シリコンゴム系の樹脂塗料４を、ボール５と供に圧力を
かけて管路１内に送り込んで管路ｌ内金体に塗布し、凝
固した後に管外に引き出し、前記凝固したチューブ内を
空気圧等の圧力によってふくらませて、管路１内全体の
形状を測定するものである。この方法によれば、管内の
錆びや汚れによって生じた凹凸まで測定できる。In the second embodiment of the present invention, as shown in FIG.
Suitable for determining the bending degree of gas pipes and water pipes installed in buildings and the unevenness of the inside (a + q), a silicone rubber-based resin paint 4 with good releasability is applied with a ball 5 under pressure. The inside of the solidified tube is inflated by pressure such as air pressure, and the shape of the entire inside of the pipe 1 is measured. It is something to do. According to this method, it is possible to measure even the irregularities caused by rust and dirt inside the pipe.
本発明の第三の実施例においては第３図に示すように、
径の小さい管路の屈曲度を測定するのに適しており、フ
レキシブルな針金状の形状記憶合金６或いは、形状記憶
樹脂を管路１内に通し、マルテンサイト化等により、管
路１内の形状を記憶させた後に、管外へ取り出して管路
１の形状を測定するものである。In the third embodiment of the present invention, as shown in FIG.
Suitable for measuring the bending degree of a small diameter pipe, a flexible wire-shaped shape memory alloy 6 or shape memory resin is passed through the pipe 1, and the inside of the pipe 1 is made into martensitic material. After the shape is memorized, it is taken out of the tube and the shape of the conduit 1 is measured.
（発明の効果）
以上詳細に説明したように本発明によれば、管路内金域
に可撓性のゴム又は樹脂又は形状記憶合金等を挿入し、
管路内の形状を記憶させた後に取り出して、管路内の形
状を測定するようにしだので、管路が金属管であるか非
金属管であるかを問わず、その形状及び線形を簡単に測
定し得ることが出来る。また、−度に測定できるので、
累積誤差がなくなりモデル化も容易である。更に請求項
２ｇ載の管路の屈曲度測定方法においては内部の凹凸形
状も１ｌｌｌｌ定できる。また ３−、！求項３記載の
管路のＡＴｉ曲度８１ｑ定方法においては、径の小さい
Ｗ路においても簡単に測定することが出来る。(Effects of the Invention) As explained in detail above, according to the present invention, flexible rubber, resin, shape memory alloy, etc. are inserted into the pipe inner metal region,
Since the shape inside the pipe is memorized and then taken out to measure the shape inside the pipe, it is easy to measure the shape and linearity of the pipe, regardless of whether it is a metal pipe or a non-metal pipe. can be measured. Also, since it can be measured in -degrees,
There is no cumulative error and modeling is easy. Further, in the method for measuring the degree of curvature of a conduit according to claim 2g, the shape of internal irregularities can also be determined. 3- again! In the method for determining the ATi curvature 81q of a pipe described in claim 3, even a W pipe with a small diameter can be easily measured.
第１図〜第３図は本発明の一実施例を示し、第１図は本
発明の第１の実施例を示す断面図、第２図は本発明の第
２の実施例を示す断面図、第３図は本発明の第３の実施
例を示す断面図である。
１・・・・・・管路
２・・・・・・可撓性チューブ
３・・・・・・シリコンゴム系樹脂
４・・・・・・樹脂塗料
５・・・・・・ボール
６・・・・・・形状記憶合金
特許出願人 コパル電子株式会社1 to 3 show an embodiment of the present invention, FIG. 1 is a sectional view showing the first embodiment of the invention, and FIG. 2 is a sectional view showing the second embodiment of the invention. , FIG. 3 is a sectional view showing a third embodiment of the present invention. 1... Conduit 2... Flexible tube 3... Silicone rubber resin 4... Resin paint 5... Ball 6. ...Shape memory alloy patent applicant Copal Electronics Co., Ltd.
Claims (3)
ンゴム系の樹脂を流し込み、凝固させた後、前記可撓性
チューブごと管外に引き出し、前記可撓性チューブ内で
凝固したシリコンゴム管の復元力により管路全体の形状
を測定することを特徴とする管路の屈曲度測定方法。(1) A flexible tube was passed through the conduit, and a silicone rubber resin was poured into it and solidified.The flexible tube was then pulled out of the tube and solidified within the flexible tube. A method for measuring the degree of curvature of a pipe, characterized by measuring the shape of the entire pipe using the restoring force of a silicone rubber pipe.
全域に塗布し、凝固させた後、管外に引き出し、前記凝
固して形成されたチューブ内を圧力によってふくらませ
て、管路内全体の形状を測定することを特徴とする管路
の屈曲度測定方法。(2) Apply silicone rubber-based resin paint with good releasability to the entire inside of the pipe, let it solidify, and then pull it out of the pipe, inflate the inside of the solidified tube with pressure, and apply it inside the pipe. A method for measuring the degree of curvature of a conduit, which is characterized by measuring the entire shape.
形状記憶樹脂を通し、管路内の形状を記憶させた後、管
外へ取り出して管路内全体の形状を測定することを特徴
とする管路の屈曲度測定方法。(3) Pass a wire-like shape memory alloy or a tube-like shape memory resin into the pipe to memorize the shape inside the pipe, and then take it out outside the pipe and measure the entire shape inside the pipe. Characteristic method for measuring the degree of curvature of pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP462589A JPH02186201A (en) | 1989-01-13 | 1989-01-13 | Method for measuring bending degree of pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP462589A JPH02186201A (en) | 1989-01-13 | 1989-01-13 | Method for measuring bending degree of pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02186201A true JPH02186201A (en) | 1990-07-20 |
Family
ID=11589225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP462589A Pending JPH02186201A (en) | 1989-01-13 | 1989-01-13 | Method for measuring bending degree of pipeline |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02186201A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4923962A (en) * | 1987-10-20 | 1990-05-08 | Idemitsu Kosan Co., Ltd. | Optical disk substrate comprising aromatic polycarbonate |
| CN109667572A (en) * | 2019-01-09 | 2019-04-23 | 中国矿业大学(北京) | A kind of underground coal mine routine drilling injection molding track locating measurement method |
-
1989
- 1989-01-13 JP JP462589A patent/JPH02186201A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4923962A (en) * | 1987-10-20 | 1990-05-08 | Idemitsu Kosan Co., Ltd. | Optical disk substrate comprising aromatic polycarbonate |
| CN109667572A (en) * | 2019-01-09 | 2019-04-23 | 中国矿业大学(北京) | A kind of underground coal mine routine drilling injection molding track locating measurement method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6561032B1 (en) | Non-destructive measurement of pipe wall thickness | |
| US6401525B1 (en) | Leak detection in liquid carrying conduits | |
| Hunaidi et al. | Acoustical characteristics of leak signals in plastic water distribution pipes | |
| US11455445B2 (en) | Method and system for non-intrusively inspecting a fluidic channel | |
| US5127267A (en) | Acoustic method for locating concealed pipe | |
| KR101306882B1 (en) | Information Acquisition Method And Device For Underground Utilities | |
| NL2022689B1 (en) | Method and system for non-intrusively determining cross-sectional variation for a fluidic channel | |
| US4419892A (en) | Method for determination of internal pipeline or tubing corrosion | |
| JP2575790B2 (en) | Leakage location estimation device | |
| JPH02186201A (en) | Method for measuring bending degree of pipeline | |
| JPH0457961B2 (en) | ||
| KR100602525B1 (en) | Underground buried detector with multiple sensors | |
| Li et al. | A novel algorithm for acoustic above ground marking based on function fitting | |
| JPH06109862A (en) | Detection method of target point in buried pipe | |
| US3782172A (en) | Leak detector for fluid conductors | |
| JP3384197B2 (en) | Pipe shape estimation method | |
| JPH0526400A (en) | Pipeline monitoring device | |
| JPS6326721Y2 (en) | ||
| JPS6138536A (en) | Device for inspecting pipeline by pig | |
| JP3113128B2 (en) | A method for detecting pipe joints using acoustic waves. | |
| JPS6145915A (en) | Method for measuring depth of underground pipe | |
| US20070005250A1 (en) | System and method for locating leaks in petroleum wells | |
| JPH05187851A (en) | Measuring method of buried pipeline and measuring device used for the method | |
| JPS58131506A (en) | Detector for conduit line position measuring device | |
| JPS61170689A (en) | Detector for joint position of buried cast iron pipe |