JPS6082881A - Location of synthetic resin underground piping - Google Patents

Abstract

PURPOSE:To detect existence, locate existing position and to estimate depth of a synthetic resin underground piping, by a magnetic field generating device set in the longitudinal direction of the piping. CONSTITUTION:A synthetic resin underground pipng 1 is formed with a ferrite- blended synthetic resin and the piping itself 1 is magnetized by a magnetizer. When the piping is set underground, magnetic field is detected from a location above the ground in the longitudinal direction of the piping and existence, existing position and depth can easily be detected.

Description

[Detailed description of the invention] In recent years, water pipes and sewer pipes made of synthetic resins'i,i
(There are many cases where cable pipes, etc. are buried underground.

It is currently impossible to detect the presence, location, depth, etc. of these buried synthetic resin pipes from above the ground at a later date because the material of the pipes is non-metallic.

The present invention has been proposed in order to solve these problems, and provides a synthetic, mono-resin molded pipe in which a magnetic field generating section is provided along the longitudinal direction of at least a portion of the pipe. The present invention relates to a method for detecting a buried synthetic resin pipe, which is characterized by burying a pipe underground and detecting the magnetic field generated from the pipe from above the ground.

In the present invention, as described above, a synthetic resin buried pipe is molded from a U-shape made of a synthetic resin mixed with a magnetic material and magnetized to make the pipe itself a magnetic field generator, or iron wires are placed inside and outside the pipe. By burying or attaching a magnetic field generating part along the longitudinal direction of at least a part of the pipe body, and by burying the synthetic resin buried pipe constructed in this way underground, the above-ground part can be installed at a later date. By detecting the magnetic field generated by the burial site, the presence, location, and depth of the burial site can be easily detected.

The present invention will be described below with reference to Examples.

In Figure 1, (1) is a buried pipe made of magnetic synthetic resin, which is molded by mixing ferrite into a synthetic resin material, and after the tube is formed, the pipe itself is magnetized by a magnetizing machine. (2) Buried within.

The magnetic field generated by the synthetic resin buried pipe (1) is detected from above ground by a magnetic detector, and the position of the synthetic resin buried pipe (11) is determined.

Figures 3 and 4 respectively show examples of synthetic resin M buried pipes, in which iron wires (4) are buried inside the synthetic resin pipe body (3) along its longitudinal direction and the synthetic resin is buried. A synthetic resin buried pipe (1'') is formed by attaching an iron wire (4) to the outer peripheral surface of the synthetic resin pipe body (3) along its longitudinal direction.

As shown in FIG. 5, the synthetic resin buried pipe (1') or (1'') is buried in the ground (2) so that the iron wire (4) portion is located on the ground surface side.

At a later date, the induced magnetism generated in the iron wire (4) of the synthetic resin buried pipe (1') or (1'') is detected by a magnetic detector or metal detector, and the induced magnetism generated in the synthetic resin buried pipe (1') or Determine the position of l").

Figure 6 shows the synthetic resin buried pipe (11 (1') (1")).
This shows a state in which a magnetic field detector or a metal detector (5) is used to search for the ground from above ground.

Although the present invention has been described above with reference to embodiments, the present invention is of course not limited to such embodiments, and various changes in design may be made without departing from the spirit of the present invention. It is.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing an example of a synthetic resin buried pipe;
Figure 2 is a vertical sectional view showing the buried condition, Figures 3 and 4.
The figures are respectively slope views showing other examples of buried pipes made of synthetic resin;
FIG. 5 is a longitudinal sectional view showing the buried state thereof, and FIG. 6 is a longitudinal sectional view showing the implementation state of an embodiment of the method for detecting a buried synthetic resin pipe according to the present invention. (1) (1 (l“)...synthetic resin buried pipe, (4
)...iron wire, (5)...magnetic probe or metal detector. Agent: Patent Attorney Sanfumi Okamoto (3 others) Figure 1

Claims (1)

[Claims] A synthetic resin pipe comprising a synthetic resin buried pipe in which a magnetic field generating part is provided along the longitudinal direction of at least a part of the pipe body is buried underground, and the magnetic field generated from the pipe is detected from above the ground. How to detect buried resin pipes.