| Presentation | 2020-02-28 Defect detection for shotcrete in ceiling of underground cavity by noncontact acoustic inspection method Tsuneyoshi Sugimoto, Kazuko Sugimoto, Noriyuki Utagawa, Chitose Kuroda, Hiroshi Morioka, Shigeru Tsuruta, Takayuki Nakagawa, Ataru Honda, Naoto Sugisaki, Takao Yamazaki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Shotcrete is widely used for supporting underground cavities because of its excellent workability. However, in a high place, a scaffold is required for hammer inspection, and thus, efficiency of work has been a problem. Therefore, development of a method capable of performing defect detection from a long distance in a non-contact manner is expected. In this article, we describe an example of detecting defects in the concrete sprayed on the ceiling of an underground cavity by a non-contact acoustic inspection method using acoustic irradiation induced vibration from a long distance of about 25 m. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Non-destructive inspection / Noncontact / Acoustic irradiation induced vibration / Shotcrete |
| Paper # | US2019-100 |
| Date of Issue | 2020-02-21 (US) |
| Conference Information | |
| Committee | US |
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| Conference Date | 2020/2/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Jun Kondo(Shizuoka Univ.) |
| Vice Chair | Shinichi Takeuchi(Toin Univ. of Yokohama) / Hikaru Miura(Nihon Univ.) |
| Secretary | Shinichi Takeuchi(Kanagawa Univ.) / Hikaru Miura(Doshisha Univ.) |
| Assistant | Mototaka Arakawa(Tohoku Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Ultrasonics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Defect detection for shotcrete in ceiling of underground cavity by noncontact acoustic inspection method |
| Sub Title (in English) | Alternative method of hammering inspection by acoustic irradiation induced vibration from a long distance |
| Keyword(1) | Non-destructive inspection |
| Keyword(2) | Noncontact |
| Keyword(3) | Acoustic irradiation induced vibration |
| Keyword(4) | Shotcrete |
| 1st Author's Name | Tsuneyoshi Sugimoto |
| 1st Author's Affiliation | Toin University of Yokohama(Toin Univ.) |
| 2nd Author's Name | Kazuko Sugimoto |
| 2nd Author's Affiliation | Toin University of Yokohama(Toin Univ.) |
| 3rd Author's Name | Noriyuki Utagawa |
| 3rd Author's Affiliation | SatoKogyo Co. Ltd.(SatoKogyo) |
| 4th Author's Name | Chitose Kuroda |
| 4th Author's Affiliation | SatoKogyo Co. Ltd.(SatoKogyo) |
| 5th Author's Name | Hiroshi Morioka |
| 5th Author's Affiliation | Tokyo Electric Power Company Holdings, Incorporated(TEPCO) |
| 6th Author's Name | Shigeru Tsuruta |
| 6th Author's Affiliation | Tokyo Electric Power Company Holdings, Incorporated(TEPCO) |
| 7th Author's Name | Takayuki Nakagawa |
| 7th Author's Affiliation | Tokyo Electric Power Services Co., Ltd.(TEPSCO) |
| 8th Author's Name | Ataru Honda |
| 8th Author's Affiliation | Tokyo Electric Power Services Co., Ltd.(TEPSCO) |
| 9th Author's Name | Naoto Sugisaki |
| 9th Author's Affiliation | Tousetu Civil Engineering Consultant Inc.(tousetu) |
| 10th Author's Name | Takao Yamazaki |
| 10th Author's Affiliation | Tousetu Civil Engineering Consultant Inc.(tousetu) |
| Date | 2020-02-28 |
| Paper # | US2019-100 |
| Volume (vol) | vol.119 |
| Number (no) | US-430 |
| Page | pp.pp.7-12(US), |
| #Pages | 6 |
| Date of Issue | 2020-02-21 (US) |