An Integrated Approach to Real-Time Acoustic Emission Damage Source Localization in Piled Raft Foundations
Acoustic emission (AE) has garnered significant interest as a promising way to detect the early-stage development of internal cracks and damage in underground and geotechnical structures, associated with natural disasters. Meanwhile, AE source localization techniques that can identify the damage loc...
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| Format: | Article |
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MDPI AG
2020-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/23/8727 |
| _version_ | 1797545604909367296 |
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| author | Yong-Min Kim Gyeol Han Hyunwoo Kim Tae-Min Oh Jin-Seop Kim Tae-Hyuk Kwon |
| author_facet | Yong-Min Kim Gyeol Han Hyunwoo Kim Tae-Min Oh Jin-Seop Kim Tae-Hyuk Kwon |
| author_sort | Yong-Min Kim |
| collection | DOAJ |
| description | Acoustic emission (AE) has garnered significant interest as a promising way to detect the early-stage development of internal cracks and damage in underground and geotechnical structures, associated with natural disasters. Meanwhile, AE source localization techniques that can identify the damage location in a piled-raft foundation (PRF) are premature because of its complex geometry, although the PRF is a widely used deep foundation type for high-rise buildings. In this study, we propose an integrated approach to localize AE sources in the PRF by using the modified Akaike information criterion (AIC) method and examine its accuracy to mark with pile zones. We performed a series of experiments on a scaled PRF model at a ratio of 1:50, composed of one raft and 25 piles. The results demonstrate that the combined approach with the modified AIC method and the Simplex method can localize the AE source zones with good accuracy, greater than 95% on average. The suggested two-stage AIC picker shows accurate onset time determination, and hence, it significantly improves the accuracy, particularly effective for the signals with low signal-to-noise ratios. The approach exploiting the two-stage AIC picker can be readily used for automated real-time AE monitoring to detect crack generation and its location in buried foundations that cannot be inspected visually. |
| first_indexed | 2024-03-10T14:17:41Z |
| format | Article |
| id | doaj.art-a83ef4caca2b4e0cb0a90098cad526cc |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T14:17:41Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-a83ef4caca2b4e0cb0a90098cad526cc2023-11-20T23:39:19ZengMDPI AGApplied Sciences2076-34172020-12-011023872710.3390/app10238727An Integrated Approach to Real-Time Acoustic Emission Damage Source Localization in Piled Raft FoundationsYong-Min Kim0Gyeol Han1Hyunwoo Kim2Tae-Min Oh3Jin-Seop Kim4Tae-Hyuk Kwon5Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, KoreaDepartment of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, KoreaDeep Subsurface Research Center, Korea Institute of Geoscience and Mineral Resources (KIGAM), Daejeon 34132, KoreaDepartment of Civil and Environmental Engineering, Pusan National University (PNU), Busan 46241, KoreaRadioactive Waste Disposal Research Division, Korea Atomic Energy Research Institute (KAERI), Daejeon 34057, KoreaDepartment of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, KoreaAcoustic emission (AE) has garnered significant interest as a promising way to detect the early-stage development of internal cracks and damage in underground and geotechnical structures, associated with natural disasters. Meanwhile, AE source localization techniques that can identify the damage location in a piled-raft foundation (PRF) are premature because of its complex geometry, although the PRF is a widely used deep foundation type for high-rise buildings. In this study, we propose an integrated approach to localize AE sources in the PRF by using the modified Akaike information criterion (AIC) method and examine its accuracy to mark with pile zones. We performed a series of experiments on a scaled PRF model at a ratio of 1:50, composed of one raft and 25 piles. The results demonstrate that the combined approach with the modified AIC method and the Simplex method can localize the AE source zones with good accuracy, greater than 95% on average. The suggested two-stage AIC picker shows accurate onset time determination, and hence, it significantly improves the accuracy, particularly effective for the signals with low signal-to-noise ratios. The approach exploiting the two-stage AIC picker can be readily used for automated real-time AE monitoring to detect crack generation and its location in buried foundations that cannot be inspected visually.https://www.mdpi.com/2076-3417/10/23/8727source localizationacoustic emissiondamagenon-destructive testpiled-raft foundationreal-time monitoring |
| spellingShingle | Yong-Min Kim Gyeol Han Hyunwoo Kim Tae-Min Oh Jin-Seop Kim Tae-Hyuk Kwon An Integrated Approach to Real-Time Acoustic Emission Damage Source Localization in Piled Raft Foundations Applied Sciences source localization acoustic emission damage non-destructive test piled-raft foundation real-time monitoring |
| title | An Integrated Approach to Real-Time Acoustic Emission Damage Source Localization in Piled Raft Foundations |
| title_full | An Integrated Approach to Real-Time Acoustic Emission Damage Source Localization in Piled Raft Foundations |
| title_fullStr | An Integrated Approach to Real-Time Acoustic Emission Damage Source Localization in Piled Raft Foundations |
| title_full_unstemmed | An Integrated Approach to Real-Time Acoustic Emission Damage Source Localization in Piled Raft Foundations |
| title_short | An Integrated Approach to Real-Time Acoustic Emission Damage Source Localization in Piled Raft Foundations |
| title_sort | integrated approach to real time acoustic emission damage source localization in piled raft foundations |
| topic | source localization acoustic emission damage non-destructive test piled-raft foundation real-time monitoring |
| url | https://www.mdpi.com/2076-3417/10/23/8727 |
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