Unterwasserakustik - Messung des abgestrahlten Wasserschalls bei der Schlagrammung von Pfählen - In-situ-Ermittlung der Einfügungsdämpfung von Schalldämmmaßnahmen im Unterwasserbereich
Englischer Titel
Underwater acoustics - Measurement of radiated underwater sound from percussive pile driving - In situ determination of the insertion loss of barrier control measures underwater
Measurements on two different piles (indirect method)
Measurement procedure
General remarks
Chronological order of the measurements
Measuring positions
General
Number of hydrophones/measuring positions
Measuring distance
Measuring direction
Measuring depths
Examples of measuring setups
General
Measuring setup 1 — Checking for a radially-symmetric effect
Measuring setup 2 — Checking for dependence on depth
Measuring setup 3 — Measurement with radially-symmetric effect, independent of the respective depth
Functional test and measuring conditions
Measuring quantities and accompanying parameters
Data recording
Data processing and calculation of acoustic metrics
Data processing steps
Background noise correction
Determination of the insertion loss
General
Case 1 — Measurement on one pile
Case 2 — Measurement on two different piles
Uncertainties
General
Measurement uncertainty
Characterization of noise abatement systems
Sound insulation for broadband level quantities
Test report
Formal information in the reports
Front page
Recurring information on the following pages
Signatures
Contents of the reports
Structuring of contents
Description of the measurements
Presentation of the results
Considerations for near shore piling applications (informative)
General
Bathymetry considerations
Monitoring distances
Peak sound pressure level insertion loss
Pile slant angle
Sound particle motion and seabed vibration (informative)
Requirements
Background
Sound particle motion in the water column
Seabed vibration
Calibration
General recommendations
Bibliography
ICS
17.140.20
Normen mitgestalten
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