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Project Number 271
Date of Summary February 3, 2005
Subject Safety and Integrity of Arctic Marine Pipelines
Performing Activity Centre for Cold Ocean Resources Engineering
Principal Investigator Dr. Ryan Phillips and Dr. Jack Clark
Contracting Agency Minerals Management Service
Estimated Completion Complete
Description This is a continuation of the Pressure Ridge Ice Scour Experiment (PRISE), Project #191. The objective of this project is to confirm the magnitude and extent of sub-scour deformations in dilatant soil, through:

1) direct field observations;

2) physical model simulations;

3) numerical model simulations; and

4) development of an indigenous knowledge workshop.
Progress A field study was conducted to observe sub-scour deformations under fresh ice scours in compact silt in a tidal estuary. This study was done during the ice break up, late spring, 1997, in the Bay of Fundy, around Cobequid Bay, Nova Scotia. Vertical deformation tubes and markers were placed in a tidal estuary at low tide. During the next low tide tidal bore scours were created. The markers were excavated and direct observations of the scours were made. A control marker, in an area with no scours, was also excavated. There were no differences found between the markers from the scoured areas and the area that was not scoured.

Reports
AA (68 pages) PDF Paulin, M.J., Safety and Integrity of Arctic Marine Pipelines, Progress Report #1: Results of Field Study, C CORE, St. John's, Newfoundland, Publication 97 C 30, July, 1997.
AB (62 pages) PDF Hurley, S., and Phillip, R., "Safety and Integrity of Arctic Marine Pipelines; Progress Report #2 Centrifuge Test PR3D 1 Report," Contract Report for MMS, C CORE, St. John's, Newfoundland, Publication 98C2, March 1998.
AC (52 pages) PDF Phillip, R., Hurley, S., and King T., "Safety and Integrity of Arctic Marine Pipelines; Progress Report #3 Centrifuge Test PR3D Report," Contract Report for MMS, C CORE, St. John's, Newfoundland, Publication 98C8, June 1998.
AD (57 pages) PDF C CORE, "Safety and Integrity of Arctic Marine Pipelines; Draft Final Report" Contract Report for Minerals Management Service, C CORE Publication 98C15, June1998.

 

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