[KSCI] Korea Science Citation Index Service

A Parametric Study on Ice Scouring Mechanism for Determination of Pipeline Burial Depths

Park, Kyung-Sik (Division of Ocean Development Engineering, Korea Maritime University)
Lee, Jong-Ho (Division of Ocean Development Engineering, Korea Maritime University)

Publication Information

Journal of Ship and Ocean Technology / v.8, no.2, 2004 , pp. 29-40 More about this Journal

Abstract

Interaction of grounded ice ridges with underlying seabed is one of the major considerations in the design of Arctic pipeline system. Previously several ice scour models were developed by researchers to describe the ice scour-seabed interaction mechanism. In this paper, a parametric study on ice scouring mechanism is performed and the limitation of ice scour-seabed interaction models is discussed. Simple laboratory tests are carried out and then the shape pattern of deposited soil around the ice is redefined. New ice scour model assumes trapezoidal cross section based on the field observation data. Ice scour depth and soil resistance forces on seabed are calculated with varying the keel angle of a model ice ridge.

Keywords

Arctic Offshore Pipelines; Ice Scour-Seabed Interaction Models; Trapezoidal Cross Section; Scour Depth; Soil Resistance Force;

Citations & Related Records

Reference

1	Kioka, S. and H. Saeki. 1995. Mechanisms of ice gouging. Proc. 5th International Offshore and Polar Engineering Conference, The Hague, The Netherlands, 2, 398-402
2	Nogueira, A.C. and M. Paulin. 1999. Limit state design for northstar offshore pipeline. Offshore, 59, 9, 146-150
3	Yoon, KY., K. Choi and H.I. Park. 1997. A numerical simulation to determine ice scour and pipeline burial depth. Proc. 7th nternational Offshore and Polar Engineering Conference, Honolulu, USA, 2, 212-219
4	Wright, B., J. Hnatiuk and A. Kovacs. 1981. Multi-year pressure ridges in the canadian beaufort sea. Coastal Engineering, 5, 125-145
5	Gulati, K.C. 1993. Design concepts for sakhalin offshore production platforms. Proc. 12th International Conference on Port and Ocean Engineering under Arctic Conditions, Hamburg, Germany, 2, 487-496
6	Kioka, S., Y. Yasunaga, U. Watanabe and H. Saeki. 2000. Evaluation of ice forces acting on seabed due to ice scouring. Proc. 10th International Offshore and Polar Engineering Conference, Seattle, USA, 1, 749-755
7	Yang, T.S. 1999. Ice Ridge Scour Model for Estimation of Arctic Pipeline Trench Depth. Master thesis, Korea Maritime University
8	Croasdale, K.R. 1977. Ice engineering for offshore petroleum exploration in Canada. Proc. 4th International Conference on Port and Ocean Engineering under Arctic Conditions, St.John's, Canada, 1-32
9	Chari, T.R. 1979. Some geotechnical aspects of iceberg scours on ocean floors. Canadian Geotechnical Journal, 16, 379-390
10	Palmer, A.C., I. Konuk, J. Love, K. Been and G. Comfort. 1989. Ice scour mechanisms. Proc. 10th International Conference on Port and Ocean Engineering under Arctic Conditions, Lulea, Sweden, 1, 123-132