Title:
DELAMINATION DETECTION SYSTEM AND DELAMINATION DETECTION METHOD
Document Type and Number:
Japanese Patent JP2023123203
Kind Code:
A
Abstract:
To provide a delamination detection system and a delamination detection method that can detect a delamination part inside a road in a non-destructive manner.SOLUTION: A delamination detection system 100 includes: a mobile body 1 that moves on a road R; an electromagnetic wave receiving/transmitting device 2 that is mounted on the mobile body 1, transmits an electromagnetic wave W1 to the road R, and receives a reflected wave W2 of the electromagnetic wave W1; and a reflected wave analysis device 4 that detects a delamination part X' based on the reflected wave W2. When the electromagnetic wave receiving/transmitting device 2 receives the reflected wave W2 reflected inside the road R, the reflected wave analysis device 4 estimates depth D of a reflection point X of the electromagnetic wave W1 based on a reception/transmission time T1 required from the transmission of the electromagnetic wave W1 to the reception of the reflected wave W2, and extracts the reflection point X as the delamination part X' when the depth D of the reflection point X is included in a predetermined depth range Da that includes the depth D of an interface B between the first layer and the second layer.SELECTED DRAWING: Figure 1
Inventors:
ASAKAWA SHINJI
KOIKE KATSUAKI
KUBO DAIKI
KOIKE KATSUAKI
KUBO DAIKI
Application Number:
JP2022027137A
Publication Date:
September 05, 2023
Filing Date:
February 24, 2022
Export Citation:
Assignee:
MAEDA ROAD CONSTRUCTION CO LTD
International Classes:
G01N22/00; G01S13/87; G01S13/88; G01V3/12
Domestic Patent References:
| JP2010014472A | 2010-01-21 | |||
| JP2022026978A | 2022-02-10 | |||
| JP4442916B1 | 2010-03-31 | |||
| JP2012184624A | 2012-09-27 | |||
| JP2014228349A | 2014-12-08 | |||
| JP2015215332A | 2015-12-03 | |||
| JP2014219238A | 2014-11-20 | |||
| JP2004325193A | 2004-11-18 | |||
| JPH11194169A | 1999-07-21 |
Foreign References:
| US20180335395A1 | 2018-11-22 |
Other References:
永塚竜也: "電磁波レーダによるＲＣ床版上面の状態評価に関する実験的検討および現場適用事例", 第九回道路橋床版シンポジウム論文報告集, JPN7022004139, 2016, pages 73 - 76, ISSN: 0004862999
Attorney, Agent or Firm:
Patent Attorney Corporation Tokoshie Patent Office