Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Investigation on Pile Driving Noise Production and Mitigation Through Bubble Curtain
Pile driving sounds were recorded during ferry construction at different distances from the recording sites and the radiating noise level decreased from 182.6 dB at 190 m and 151.4 dB (n = 99) at 1200 m, higher than the background noise level of 134.3 dB. Pile driving sounds had the majority of energy confined to the low frequency scale below 1 kHz. These pile files were used in subsequent playback experiments. A finite element model of pile driving was developed to investigate the sound generation and propagation as well as the effect of bubble curtain on reducing pile driving noise. Sounds emitted from impact pile can propagate in various pathways and a bubble curtain close to the construction site can reduce the waves traveling along the direct pathway. The attenuation over 20 dB apparently suggested the potential application of bubble curtain to reduce pile driving noise. This attenuation was further verified in laboratory tests where the fabricated bubble curtain was able to reduce pile driving pulse by over a dozen decibels. These results showed the possibility of using bubble curtain to mitigate pile driving noise.
Investigation on Pile Driving Noise Production and Mitigation Through Bubble Curtain
Pile driving sounds were recorded during ferry construction at different distances from the recording sites and the radiating noise level decreased from 182.6 dB at 190 m and 151.4 dB (n = 99) at 1200 m, higher than the background noise level of 134.3 dB. Pile driving sounds had the majority of energy confined to the low frequency scale below 1 kHz. These pile files were used in subsequent playback experiments. A finite element model of pile driving was developed to investigate the sound generation and propagation as well as the effect of bubble curtain on reducing pile driving noise. Sounds emitted from impact pile can propagate in various pathways and a bubble curtain close to the construction site can reduce the waves traveling along the direct pathway. The attenuation over 20 dB apparently suggested the potential application of bubble curtain to reduce pile driving noise. This attenuation was further verified in laboratory tests where the fabricated bubble curtain was able to reduce pile driving pulse by over a dozen decibels. These results showed the possibility of using bubble curtain to mitigate pile driving noise.
Investigation on Pile Driving Noise Production and Mitigation Through Bubble Curtain
Lecture Notes in Civil Engineering
Yang, Desen (Herausgeber:in) / Song, Zhongchang (Autor:in) / Li, Hongquan (Autor:in) / Su, Yingnan (Autor:in) / Cao, Peizheng (Autor:in) / Ou, Wenzhan (Autor:in) / Sun, Shengyao (Autor:in) / Fu, Weijie (Autor:in) / Zhang, Yu (Autor:in)
International Conference on Marine Equipment & Technology and Sustainable Development ; 2023 ; Beijing, China
02.08.2023
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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