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Survey Assessments For Waterfront Facility Engineering

Published: Proceedings from the American Society of Civil Engineers COPRI Ports 2013 Conference, 25-28 August 2013. Copyright 2013 American Society of Civil Engineers

25 Aug 2013
Mitchell, T.

Abstract:
Waterfront facilities are challenging environments to perform assessment surveys. Yet as these facilities age and require rehabilitation, the ability to capture detailed geospatial survey information can be critical. Vital information might include the absolute position of piles, erosion/displacement of revetment material and/or sediment scour/deposition. Integrating accurate and detailed mobile laser scanning with precision multibeam bathymetry creates an extremely dense network of points that spans both the above and below water components of waterfront structures. The collected data points can be used in GIS and/or CAD software environments to model the seafloor, piles and other infrastructure features. The resulting information can play a vital role in determining remedial design strategies and assessing the associated costs. In other circumstances, engineers can better design new/replacement on-dock facilities by taking full advantage of the positions of the piles under the dock – including batter piles. By conducting as-built or baseline surveys, this technique can also play an important role in understanding how the infrastructure has been impacted following episodic events. This paper will discuss how these technologies are combined to provide information that is now being used to empower engineers with better conditional information on coastal facility sites.

 

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