Underwater noise from geotechnical drilling and standard penetration testing
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Authors
Erbe, C.
Erbe, Christine
Date
2017Collection
Type
Journal Article
Metadata
Show full item recordAbstract
© 2017 Acoustical Society of America. Geotechnical site investigations prior to marine construction typically involve shallow, small-core drilling and standard penetration testing (SPT), during which a small tube is hammered into the ground at the bottom of the borehole. Drilling (120 kW, 83 mm diameter drillbit, 1500 rpm, 16-17 m drill depth in sand and mudstone) and SPT (50 mm diameter test tube, 15 mm wall thickness, 100 kg hammer, 1 m drop height) by a jack-up rig in 7-13 m of water were recorded with a drifting hydrophone at 10-50 m range. Source levels were 142-145 dB re 1 μPa rms @ 1 m (30-2000 Hz) for drilling and 151-160 dB re 1 μPa 2 s @ 1 m (20-24 000 Hz) for SPT.
Citation
Erbe, C. and Erbe, C. 2017. Underwater noise from geotechnical drilling and standard penetration testing. Journal of the Acoustical Society of America. 142 (3): pp. EL281-EN285.
Source Title
Journal of the Acoustical Society of America
Department
Centre for Marine Science and Technology
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