Title:
鉄筋コンクリート体の鉄筋深さ位置推定方法
Document Type and Number:
Japanese Patent JP7478178
Kind Code:
B2
Abstract:
To accurately grasp in a short time the depth positions and disposition interval of reinforcing bars inside a reinforced concrete body.SOLUTION: A method for estimating the depth positions of reinforcing bars in a reinforced concrete body includes: a Fourier transformation data generation step of performing Fourier transformation on reflected wave data of an electromagnetic wave obtained by causing a vehicle VH having an electromagnetic wave radar mounted thereon to radiate an electromagnetic wave in a depth direction while causing the vehicle VH to move in an extension direction of an RC slab, thereby generating Fourier transformation data FTD; a specific frequency component presence checking step of checking the presence of a specific frequency component in the Fourier transformation data FTD; and a reinforcing bar depth position extraction step of extracting a position where the specific frequency component is checked in the specific frequency component presence checking step as a reinforcing bar depth position TFI.SELECTED DRAWING: Figure 2
Inventors:
Tatsuya Iguchi
Tatsuo Ogata
Shinji Hirayae
Tatsuo Ogata
Shinji Hirayae
Application Number:
JP2022035561A
Publication Date:
May 02, 2024
Filing Date:
March 08, 2022
Export Citation:
Assignee:
Civil Engineering Management Laboratory Co., Ltd.
West Japan Expressway Co., Ltd.
West Japan Expressway Engineering Kyushu Co., Ltd.
West Japan Expressway Co., Ltd.
West Japan Expressway Engineering Kyushu Co., Ltd.
International Classes:
G01V3/12
Domestic Patent References:
| JP2018004598A | ||||
| JP2010239610A | ||||
| JP2007017365A | ||||
| JP2003315004A | ||||
| JP62098287A |
Attorney, Agent or Firm:
Watanuki International Patent & Trademark Office