Underwater noise reduction of marine pile driving using a double pile.

Details

• Creators:
  Reinhall, Per G. ; Dardis, Tim ; Dahl, Peter H.
• Corporate Creators:
  Washington State Transportation Center
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Pile driving
  • Piles (Supports)
  • Underwater sound
  • Noise control
  • Sound transmission
  • Field tests
  • Finite element method
• Publication/ Report Number:
  WA-RD 849.1
• Resource Type:
  Tech Report
• Geographical Coverage:
  Washington
• Corporate Publisher:
  Washington (State). Dept. of Transportation
• Abstract:
  Impact pile driving of steel piles in marine environments produces extremely high sound levels in the water. ; It has been shown that current pile driving noise attenuation techniques, such as bubble curtains and ; cofferdams, provide limited noise reduction because significant noise is transmitted through the sediment ; into the water. Similarly, the effectiveness of surrounding the pile in the water with a double walled steel ; tube was shown in an earlier WSDOT study to be limited. To address this problem, a double walled pile has ; been developed to decrease the total noise transmitted into the water. The double walled pile consists of two ; concentric tubes connected by a special driving shoe, with an air gap between the two tubes. The double ; walled pile is driven into the sediment by using traditional equipment to strike the inner tube only. The air ; gap between the inner and outer tube prevents the radial deformation wave produced by the pile hammer ; from interacting with the water and the sediment. This report discusses the design of the double wall pile and ; presents the results from finite element modeling of the pile, scaled prototype testing, and full-scale field ; testing in Commencement Bay, Puget Sound, Washington. The tests showed that the double walled piles ; reduce the peak sound pressure over 20 dB relative to single walled piles at a range of approximately 8 ; meters. They also showed that, in contrast, only a 3- to 6-dB reduction is obtained when a bubble curtain is ; used on a full-scale, single walled pile.
  More +
• Format:
  PDF
• Funding:
  Agreement T1461, Task 11
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/29660/dot_29660_DS1.pdf
• File Type:
  [PDF - 5.33 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:5d6a40c6ec4fe63c745c1d39bdd7cb428357887ad24adfe77df10e0da2098d34