The Halterm Container Terminal is located at the entrance to Halifax Harbour on Nova Scotia's Atlantic Coast. The harbour has a natural depth of about 18 m, and is ice free year round. Halterm is one of the most important container terminals on the Canadian East Coast and total throughput for the 12 month period ending August 2000 exceeded 500,000 TEU. In recent years Halterm has been accepting ever larger container ships and in mid-1999 berthed the Regina Maersk, the world's largest container ship at that time. Various methods of repairing the undermining were considered including the use of bagged concrete and large armour stone, but ultimately it was determined that the best long term solution involved the use of steel sheet pile and underwater (tremie) concrete. Steel sheet pile was selected for two reasons, 1) to retain the tremie concrete used to fill the void under the caisson, and 2) to prevent future undermining of the caisson. In the undermined location there was an insufficient thickness of material above bedrock to provide the lateral resistance necessary to retain the tremie concrete and there was also the possibility that this same material would wash out after the repair was complete. It was therefore deemed necessary to key the bottom of the sheet pile into the bedrock.
Scour Repairs at Port of Halifax, Nova Scotia, Canada
Ports Conference 2001 ; 2001 ; Norfolk, Virginia, United States
Ports '01 ; 1-10
27.04.2001
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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