دورية أكاديمية
Dynamic Response of the Tunnel Lining with a Circumferential Crack Subjected to a Harmonic Point Load
| العنوان: | Dynamic Response of the Tunnel Lining with a Circumferential Crack Subjected to a Harmonic Point Load |
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| المؤلفون: | Jianwei Yang, Changdong Liu, Peishan Liu, Yue Zhao |
| المصدر: | Applied Sciences, Vol 14, Iss 7, p 3072 (2024) |
| بيانات النشر: | MDPI AG, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Technology LCC:Engineering (General). Civil engineering (General) LCC:Biology (General) LCC:Physics LCC:Chemistry |
| مصطلحات موضوعية: | tunnel lining, circumferential crack, line spring model, wave propagation, vibration characteristics, displacement response, Technology, Engineering (General). Civil engineering (General), TA1-2040, Biology (General), QH301-705.5, Physics, QC1-999, Chemistry, QD1-999 |
| الوصف: | Cracks are one of the most common diseases of tunnel lining, and the structural dynamic response can be used to assess the health of a tunnel. Hence, this paper investigates the dynamic response of shield tunnel lining with a partly circumferential crack. The shield tunnel lining is regarded as a thin cylindrical shell and analyzed independently. The research methodology integrates the wave propagation method, the local flexibility matrix, the line spring model and the wave superposition principle. The results show that the position and depth of a partly circumferential crack can influence the natural frequency of the shield tunnel lining. Under the fixed-position load, as the distance from the monitoring point to the crack increases, the difference in displacement response amplitude between the undamaged and cracked linings diminishes. Moreover, deepening cracks enlarge the magnitude of amplitude differences. When the load approaches the crack, the radial amplitude difference first increases and then decreases as the monitor moves away from the crack. This finding helps determine the required monitor position. The displacement response of the selected monitor indicates that the closer the load position is to the crack, the larger the amplitude difference. The results aid in identifying the crack position and selecting corresponding load and monitor locations. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 14073072 2076-3417 |
| العلاقة: | https://www.mdpi.com/2076-3417/14/7/3072Test; https://doaj.org/toc/2076-3417Test |
| DOI: | 10.3390/app14073072 |
| الوصول الحر: | https://doaj.org/article/3c398361df85467ca67d7eb575c499a3Test |
| رقم الانضمام: | edsdoj.3c398361df85467ca67d7eb575c499a3 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 14073072 20763417 |
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| DOI: | 10.3390/app14073072 |