JPS6454280A - Exploration of pc steel material - Google Patents
Exploration of pc steel materialInfo
- Publication number
- JPS6454280A JPS6454280A JP62212370A JP21237087A JPS6454280A JP S6454280 A JPS6454280 A JP S6454280A JP 62212370 A JP62212370 A JP 62212370A JP 21237087 A JP21237087 A JP 21237087A JP S6454280 A JPS6454280 A JP S6454280A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- steel
- magnetic
- steel material
- steel wire
- 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.)
- Granted
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
PURPOSE:To enable exploration of a PC steel material alone in a concrete simply and accurately being distinguished from other metal material such as reinforcing steel, by applying a magnetic force to the PC steel material to check a magnetic force with a magnetic detector. CONSTITUTION:A magnet 2 is stuck direct on the outer surface of a PC (prestressed concrete) steel wire 1 continuously or at a fixed interval along the length thereof or a magnetic powder 5 is buried to be mixed into a protective sheath 4 covering the PC steel wire 1. In this manner, the PC steel material with the magnet 2 stuck thereon or with the magnetic powder applied thereto is arranged at a specified position together with a reinforcing steel, and then, concrete is cast. When detecting the layout position of the magnetic pieces to avoid the PC steel material in the boring for a concrete hardened matter, nailing, anchoring or the like, a magnetic detector 7 is used to trace on the surface of the concrete 6 cast. Thus, a magnetic force from the magnet 2 in the PC steel wire 1 is detected, thereby enabling the finding of the location at which the PC steel wire is arranged.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62212370A JPS6454280A (en) | 1987-08-25 | 1987-08-25 | Exploration of pc steel material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62212370A JPS6454280A (en) | 1987-08-25 | 1987-08-25 | Exploration of pc steel material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6454280A true JPS6454280A (en) | 1989-03-01 |
JPH0532717B2 JPH0532717B2 (en) | 1993-05-17 |
Family
ID=16621438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62212370A Granted JPS6454280A (en) | 1987-08-25 | 1987-08-25 | Exploration of pc steel material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6454280A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5006806A (en) * | 1989-03-15 | 1991-04-09 | Schonstedt Instrument Company | Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as burried fiber optic cables |
US5017873A (en) * | 1989-03-15 | 1991-05-21 | Schonstedt Instrument Company | Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cables |
US5206065A (en) * | 1989-03-15 | 1993-04-27 | Schonstedt Instrument Company | Methods, apparatus and devices relating to magnetic markers for elongated hidden objects |
USRE34701E (en) * | 1989-12-18 | 1994-08-23 | Gas Research Institute | Magnetically detectable plastic pipe |
CN110618193A (en) * | 2018-06-20 | 2019-12-27 | 武汉知行建科工程技术有限公司 | Magnetic powder type steel bar detection device and method |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4935247U (en) * | 1972-06-30 | 1974-03-28 | ||
JPS5646480A (en) * | 1979-09-25 | 1981-04-27 | Nec Corp | Magnetic sign system |
JPS6165603A (en) * | 1984-09-07 | 1986-04-04 | Nec Corp | High frequency signal transmission line |
-
1987
- 1987-08-25 JP JP62212370A patent/JPS6454280A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4935247U (en) * | 1972-06-30 | 1974-03-28 | ||
JPS5646480A (en) * | 1979-09-25 | 1981-04-27 | Nec Corp | Magnetic sign system |
JPS6165603A (en) * | 1984-09-07 | 1986-04-04 | Nec Corp | High frequency signal transmission line |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5006806A (en) * | 1989-03-15 | 1991-04-09 | Schonstedt Instrument Company | Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as burried fiber optic cables |
US5017873A (en) * | 1989-03-15 | 1991-05-21 | Schonstedt Instrument Company | Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cables |
US5206065A (en) * | 1989-03-15 | 1993-04-27 | Schonstedt Instrument Company | Methods, apparatus and devices relating to magnetic markers for elongated hidden objects |
USRE34701E (en) * | 1989-12-18 | 1994-08-23 | Gas Research Institute | Magnetically detectable plastic pipe |
CN110618193A (en) * | 2018-06-20 | 2019-12-27 | 武汉知行建科工程技术有限公司 | Magnetic powder type steel bar detection device and method |
CN110618193B (en) * | 2018-06-20 | 2024-05-07 | 武汉知行建科工程技术有限公司 | Magnetic powder type steel bar detection device and method |
Also Published As
Publication number | Publication date |
---|---|
JPH0532717B2 (en) | 1993-05-17 |
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