JPS5913713B2 - Buried nonmetallic pipe detection method - Google Patents
Buried nonmetallic pipe detection methodInfo
- Publication number
- JPS5913713B2 JPS5913713B2 JP51081715A JP8171576A JPS5913713B2 JP S5913713 B2 JPS5913713 B2 JP S5913713B2 JP 51081715 A JP51081715 A JP 51081715A JP 8171576 A JP8171576 A JP 8171576A JP S5913713 B2 JPS5913713 B2 JP S5913713B2
- Authority
- JP
- Japan
- Prior art keywords
- buried
- low
- pipes
- detection method
- frequency vibration
- 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
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
Description
【発明の詳細な説明】
本発明は地中に埋設されて（・る非金属管の埋設位置を
探知する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for detecting the buried position of a non-metallic pipe buried underground.
地中には水道管、ガス管、ケーブル保護用管として塩化
ビニル管、石綿管、新配管材、ポリエチレン管等の非金
属管が埋設されて（・るが、これ等の非金属管を道路工
事等を行なう時に破損しな（・ようあらかじめその埋設
位置を探知しておく必要がある。Non-metallic pipes such as vinyl chloride pipes, asbestos pipes, new piping materials, and polyethylene pipes are buried underground as water pipes, gas pipes, and cable protection pipes. It is necessary to detect the buried location in advance to avoid damage during construction.
しかしながら、従来は電磁波を応用した探知機が使用で
きな（・ため、埋設金属探知機をそのまま使用して、該
探知機の発する超音波を受信する方法が採られて℃・る
。However, in the past, it was not possible to use detectors that applied electromagnetic waves, so a method was adopted in which a buried metal detector was used as it was and the ultrasonic waves emitted by the detector were received.
しかしながら、上記のような方法では、非金属管の接続
部が接着材にて接合されて（・るため、超音波を長時間
の間与えておくと上記接続部が剥離してしまうことがあ
る。However, in the above method, the connecting parts of the non-metallic pipes are joined with an adhesive (・), so if ultrasonic waves are applied for a long time, the connecting parts may peel off. .
本発明は上記事情に鑑みなされたもので、上記従来の方
法による問題点、即ち高周波振動を与えることにより接
続部が剥離してしまう欠点を解消した埋設非金属管探知
方法を提供するものである。The present invention has been made in view of the above circumstances, and provides a method for detecting buried non-metallic pipes that eliminates the problem of the conventional methods described above, that is, the connection part peels off when high frequency vibration is applied. .
以下、本発明の実施例を添付図面を参照しながら詳細に
説明する。Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
図にお（゛て、１は２００ Ｈ２以下の低周波振動を結
合ボックス２を介して埋設非金属管３に与える低周波振
動発振器、４は受信器であって、上記埋設非金属管３に
伝達された低周波振動を地表から探知する低周波発振器
５を介してヘッドホーン６或は指示メータ７に伝える受
信器である。In the figure, 1 is a low-frequency vibration oscillator that applies low-frequency vibrations of 200 H2 or less to the buried non-metallic pipe 3 via the coupling box 2, and 4 is a receiver that applies low-frequency vibrations of 200 H2 or less to the buried non-metallic pipe 3. This is a receiver that transmits the transmitted low-frequency vibrations to the headphones 6 or the indicator meter 7 via the low-frequency oscillator 5 that detects the transmitted low-frequency vibrations from the ground surface.
このような装置を使用して行なう本発明の方法は、低周
波発振器１から埋設非金属管３に与えられる振動が２０
０ Ｈ２以下の低周波であるため、長時間使用しても埋
設非金属管の接続部が剥離するおそれが全くなし・０
なお、発明者の実験によれば、低周波振動は３０乃至６
５Ｈ２の間が最も理想的であり、通常の埋設非金属管に
対しては３０乃至６５Ｈ２の低周波振動を与えた場合に
は剥離現象が生じることはなく、また受信可能深度は地
質により５乃至７メートル、測定可能範囲は深度１．５
メートルの場合低周波振動を与えた地点から２００メー
トルである。The method of the present invention using such a device is such that the vibration applied from the low frequency oscillator 1 to the buried nonmetallic pipe 3 is 20
0 Since it has a low frequency of H2 or less, there is no risk that the connection part of the buried non-metallic pipe will peel off even if it is used for a long time.・0 According to the inventor's experiments, the low frequency vibration is 30 to 6
The most ideal range is between 5H2 and 30 to 65H2 low frequency vibration is applied to ordinary buried non-metallic pipes without causing peeling, and the receivable depth is between 5H and 5H2 depending on the geology. 7 meters, measurable range is 1.5 depth
In the case of meters, it is 200 meters from the point where the low frequency vibration was applied.
以上述べたように本発明の埋設非金属管探知方法によれ
ば、低周波振動発振器とその受信装置一式を用意するだ
けで、従来の電磁波による方法では達成することができ
ず、また高（・周波数の振動を与える方法では被探知管
の接続部に剥離を生じてしまうため成し得な力りだ埋設
非金属管の探知を容易にし、しかも接続部に剥離現象を
絶対に生じさせることな〈実施することができる。As described above, according to the method for detecting buried nonmetallic pipes of the present invention, only a low-frequency vibration oscillator and a set of its receiver are prepared, which cannot be achieved with conventional methods using electromagnetic waves, and The method of applying frequency vibrations causes peeling at the joints of the pipes to be detected, so this method makes it easier to detect buried non-metallic pipes, and it absolutely does not cause peeling at the joints. <Can be implemented.
図面は本発明の方法の実施例を説明するための説明図で
ある。
１・・・・・低周波振動発振器、２・・・・・・結合ボ
ックス、３・・・・・・埋設非金属管、４・・・・・・
受信器、５・・・・・仮周波感振器、６・・・・・・ヘ
ッドホーン、７・・・・・・指示メータ。The drawings are explanatory diagrams for explaining an embodiment of the method of the present invention. 1...Low frequency vibration oscillator, 2...Coupling box, 3...Buried non-metallic pipe, 4...
Receiver, 5...Temporary frequency vibration sensor, 6...Headphone, 7...Indication meter.
Claims (1)
該埋設非金属管を伝わる上記低周波振動を低周波振動受
信器で地表より探測し、埋設非金属管の埋設位置を探知
することを特徴とする埋設非金属管探知方法。Applying low frequency vibration of 130 to 65H2 to the buried non-metallic pipe,
A method for detecting a buried non-metallic pipe, characterized in that the low-frequency vibration transmitted through the buried non-metallic pipe is detected from the ground surface using a low-frequency vibration receiver, and the buried position of the buried non-metallic pipe is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51081715A JPS5913713B2 (en) | 1976-07-09 | 1976-07-09 | Buried nonmetallic pipe detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51081715A JPS5913713B2 (en) | 1976-07-09 | 1976-07-09 | Buried nonmetallic pipe detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS537356A JPS537356A (en) | 1978-01-23 |
| JPS5913713B2 true JPS5913713B2 (en) | 1984-03-31 |
Family
ID=13754086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51081715A Expired JPS5913713B2 (en) | 1976-07-09 | 1976-07-09 | Buried nonmetallic pipe detection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5913713B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6135386A (en) * | 1984-07-28 | 1986-02-19 | Tokyo Chika Koji Kk | Detecting method of piping state of buried pipe |
| JPH0739578Y2 (en) * | 1990-03-22 | 1995-09-13 | ブラザー工業株式会社 | Tape cutter |
| JP2010074938A (en) * | 2008-09-18 | 2010-04-02 | Nippon Telegr & Teleph Corp <Ntt> | Cable searching method and cable searching apparatus |
| JP6988135B2 (en) | 2017-03-31 | 2022-01-05 | ブラザー工業株式会社 | Printing equipment |
| CN109521464B (en) * | 2018-11-16 | 2020-12-25 | 湖南普奇地质勘探设备研究院（普通合伙) | Gas PE pipeline positioning method |
-
1976
- 1976-07-09 JP JP51081715A patent/JPS5913713B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS537356A (en) | 1978-01-23 |
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