Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 5American Society of Mechanical Engineers, 1993 - Arctic regions |
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Page 69
... scour induced free spans as the early stage of the lowering process . The model is based on the following : The basic principle is the balance between the bed load within the scour hole and the bed load in the region of the seabed not ...
... scour induced free spans as the early stage of the lowering process . The model is based on the following : The basic principle is the balance between the bed load within the scour hole and the bed load in the region of the seabed not ...
Page 72
... scour hole depth under the pipe in section C at a water depth of 35 m under mean environmental conditions , assuming the pipeline resting at the virgin bedline . From this , it can be desumed that Scour induced free spans can develop to ...
... scour hole depth under the pipe in section C at a water depth of 35 m under mean environmental conditions , assuming the pipeline resting at the virgin bedline . From this , it can be desumed that Scour induced free spans can develop to ...
Page 314
... scour development compared to the previous years . The exposure and free span lengths had increased , in certain areas with 30 % , from 1989 to 1991. As the length of the free spans was getting close to the allowable length , further ...
... scour development compared to the previous years . The exposure and free span lengths had increased , in certain areas with 30 % , from 1989 to 1991. As the length of the free spans was getting close to the allowable length , further ...
Contents
OFFSHORE MECHANICS AND ARCTIC ENGINEERING | 28 |
Fire and Pollution Safety | 36 |
Probabilistic Response Modelling | 56 |
Copyright | |
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Alberta Almen strip anticorrosion coating applied assessment backfill behaviour bending buckle lengths buckling burst pressure calculated cathodic protection compression concrete configuration cost crack propagation curvature deformation depth developed diameter directional drill disbonded displacement ditch effect Engineering environment equations factor failure FE analysis flow free spans friction gas pipeline grit blasting hoop stress increase installation integrity interaction length liquid load longitudinal material maximum measured mechanical metal loss monitoring NACE niobium offshore OLGA operating OTDR overcoating parameters Permafrost pile pipeline pipeline system pits plane strain plastic polychloroprene Polypropylene predictions Qinghai resistance scour seabed sensor settlement shear shear strength shown in Figure simulated Snamprogetti soil solution specimens steel stiffness strain strain gauges strength stress stress concentration structural surface Table temperature thickness TMCP values velocity wall wave weld Zeepipe zone