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Demonstration of High-Speed Laser Hammering System for the Lining Concrete Inspection
https://repo.qst.go.jp/records/82686
https://repo.qst.go.jp/records/826860f8f4a2b-5db9-4139-8fde-a1e5bbb1977d
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-04-09 | |||||
タイトル | ||||||
タイトル | Demonstration of High-Speed Laser Hammering System for the Lining Concrete Inspection | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
長谷川, 登
× 長谷川, 登× 錦野, 将元× 岡田, 大× 近藤, 修司× 北村, 俊幸× 木暮, 繁× 安部, 正道× 舛添, 和久× Noboru, Hasegawa× Masaharu, Nishikino× Hajime, Okada× Shuji, Kondo× Toshiyuki, Kitamura× Kogure, Shigeru× Abe, Masamichi× Masuzoe, Kazuhisa |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We have developed a new high-speed laser remote sensing system for detection of the defects in the lining concrete of tunnels. The laser hammering system (LHS) has same measurement principle as the conventional hammering test, and it consists of the hammering laser as a hammer, laser vibrometer as an inspector's ear, and high speed scanning system. The advantages of LHS are remote sensing (> 5m), high-speed measurement (up to 50 Hz), and digital recording. Inspection in road tunnels is demonstrated by LHS mounted on 4t loading vehicle, and we have succeeded in detecting defects in the lining concrete of tunnels and the result was consistent with conventional hammering test. The inspection results can be data-linked to the tunnel surface imaging system, MIMM (Mobile Imaging Technology & Mobile Mapping System). By using the total inspection system combined LHS and MIMM, the efficiency of the maintenance of the tunnels will be significantly improved. | |||||
書誌情報 |
ITA-AITES World Tunnel Congress, WTC2020 and 46th General Assembly Kuala Lumpur, Malaysia 11-17 September 2020 巻 46, p. 653-656, 発行日 2020-09 |