ASCE will be sunsetting the Civil Engineering Database (CEDB) in the coming months. We encourage you to start using the ASCE Library to perform content searches. In the ASCE Library, you can save your search results as well as receive email content alerts when new content relevant to your area of interest is published. Try it out today at https://ascelibrary.org.

 

Geotechnical Features of Fur Seal Island Design

by Ulrich Luscher, Woodward-Clyde Consultants, Walnut, Creek, CA, USA,
M. Radwan Akky, Woodward-Clyde Consultants, Walnut, Creek, CA, USA,
John A. Egan, Woodward-Clyde Consultants, Walnut, Creek, CA, USA,
Robert R. Youngs, Woodward-Clyde Consultants, Walnut, Creek, CA, USA,
John Sheets, Woodward-Clyde Consultants, Walnut, Creek, CA, USA,



Document Type: Proceeding Paper

Part of: Civil Engineering in the Arctic Offshore

Abstract:

In summer 1983, Texaco made plans to construct an artificial island in Harrison Bay of the Beaufort Sea to serve as a platform for exploratory drilling. Fur Seal Island is to be located about 4. 4 miles southeast of Mukluk Island. Its design is similar to Mukluk's except for the following significant differences: winter construction using ice road (compared to summer construction using barges), and apparently weaker shallow subseafloor soil conditions. Significant design problems due to relatively large anticipated thaw settlement and low shear strength of expected loose winter-placed fill, and relatively low shear strength of shallow ocean bottom soils, were presented that had to be overcome. Innovative approaches were used to characterize the shallow soil's shear strength and to assess stability. The available strength, combined with the 44-foot water depth, resulted in an as-designed island slope slightly flatter than previously used and a possible limitation on temporary construction slopes.

Subject Headings: Offshore construction | Islands | Shear strength | Soil strength | Offshore structures | Cold region construction | Underwater construction | Beaufort Sea

Services: Buy this book/Buy this article

 

Return to search