Title:
地下管路の計測方法
Document Type and Number:
Japanese Patent JP7240817
Kind Code:
B2
Abstract:
To provide a measurement device and measurement method that can accurately identify a position and a path of an underground pipe without the necessity of boring a large-diameter vertical shaft, can be applied to a relatively small-diameter underground pipe, and can determine a position of a vertical shaft whose upper end is buried underground.SOLUTION: A measurement device (4) of this invention is a measurement device (4) used for position measurement of an underground pipe (1), and comprises a tip member (4T) in which a slope (4S) is formed by cutting off a part of a cylindrical shape that accommodates a photographing device (4B) for an image inside a pipe line having a lighting (4L), and a measurement part (4M) having an intermediate member (4R) that accommodates a triaxial gyroscope position measurement device (4A). The tip member (4T) and the intermediate member (4R) are linked in series to a cable (3) connected by a waterproof connector (4C) at a joints (4D and 4E).SELECTED DRAWING: Figure 1
Inventors:
Masanori Kagawa
Tsutomu Tsuchiya
Yoshitaka Noro
Tsutomu Tsuchiya
Yoshitaka Noro
Application Number:
JP2018082030A
Publication Date:
March 16, 2023
Filing Date:
April 23, 2018
Export Citation:
Assignee:
Chemical Grout Co., Ltd.
International Classes:
G01C7/06; G01C15/00
Domestic Patent References:
| JP2001280961A | ||||
| JP10010659A | ||||
| JP4189668A | ||||
| JP2010032475A | ||||
| JP1084602U | ||||
| JP62139209A | ||||
| JP2001116965A |
Attorney, Agent or Firm:
Patent Attorney Takahashi Patent Office