Geotechnical Considerations in the Design of the Wando Terminal Wharf Extension, Charleston, South Carolina

by Daniel C. Stapleton, CE Maguire Inc, Providence, RI, USA,
Paul B. Aldinger, CE Maguire Inc, Providence, RI, USA,
G. Stuart Turner, CE Maguire Inc, Providence, RI, USA,

Document Type: Proceeding Paper

Part of: Ports '86


The South Carolina State Ports Authority (SPA) is currently examining construction concepts for the proposed 1,200-foot wharf extension and 40 acres of adjacent upland development at the Wando Terminal. The Berth 4 extension presents a particular geotechnical design challenge because of the difficult soil conditions in the expansion area. The principal technical concerns were geotechnical and included the bearing capacity of the Marl, the strength, stress-strain relationship and stability of the materials available on-site. The application of seismic loads typical of the region further complicated analyses. The major structural systems considered included pile supported decks, precast concrete caisson-gravity structures, steel sheet pile cellular wharf, high capacity bulkheads, and cast-in-place concrete slurry wall retaining structures. All structures considered would be founded in the Marl.

Subject Headings: Steel structures | Concrete structures | Steel piles | Geotechnical engineering | Strength of materials | Seismic loads | Concrete piles | Sheet piles | South Carolina | United States

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