Browse > Article

Local Scour at a Submarine Pipelines on Slope Beach  

황현구 (충북대학교 토목공학과)
김경호 (충북대학교 토목공학과)
연주흠 (충북대학교 토목공학과)
오현식 (충북대학교 토목공학과)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.15, no.3, 2003 , pp. 176-185 More about this Journal
Abstract
In order to ensure that submarine pipelines are stable and functional during their project lives, attention must be paid to possibility of their local scouring. When a pipeline is placed on an erodible bed, scour will develop and cause the spanning of the pipeline. U they were destroyed partially or fully, it might cause enormous restoration expenses and contamination of sea water. This paper aims at examining the characteristics of the scour End the prediction of the local scour depths around the submarine pipelines. The pipelines on the model beach with the uniform slope are placed, and the local scour depths around the pipelines are obtained according to the various wave steepnesses. Using the experimental results, some parameters needed for analyses are calculated. Finally, empirical equations of the scour depth around the pipelines are suggested through the correlation analyses between the rotative scour depth. the KC number and Modified Ursell number.
Keywords
submarine pipeline; slope beach; local scour; KC number; modified Ursell number;
Citations & Related Records
연도 인용수 순위
  • Reference
1 /
[ Herbich,J.B. ] / Offshore pipeline design elements
2 Interaction between pipelines and the seabed under the influence of waves and current, Seabed Mechanics /
[ Bijker,E.W.;Leeuwestein,W. ] / Proc. Symp. IUTAM/IUGG
3 Scour Below Pipelines in Waves /
[ Sumer,B.M.;Freds<TEX>${\o}$</TEX>e,J. ] / Journal of waterway, port Coastal, and Ocean Engineering
4 Seabed scour under pipelines /
[ Mao,Y. ] / Proc. of 7th Int. Symp. on Offshore Mech. and Arctic Engrg., (OMAE)
5 Scour prediction around marine pipelines /
[ Ibrahim,A.;Nalluri,C. ] / Proc. 5th Int. Symp. on Offshore Mech. and Arctic Engrg.
6 Scour under Submarine Pipelines in Waves in Shoaling Conditions /
[ Cevik,E.;Yuksel,Y. ] / Journal of waterway, port, Coastal, and Ocean Engineering
7 Flow around horizontal circular cylinder in shallow flows /
[ Chiew,Y.M. ] / Journal of waterway, port, Coastal, and Ocean Engineering
8 Flow Field along a flat surface with a parallel placed cylinder /
[ Yuksel,Y.;Ath,V.;Cevik,E. ] / Proc., 5th Int. Offshore and Polar Engrg. Conf.
9 Scour underneath submarine pipelines /
[ Lucassen,R.J. ] / MATs REp. PL-4 2A, Marine Tech. Res.
10 Breaking wave forces on horizontal cylinders close to the sea bed /
[ Yuksel,Y.;Narayanan,R. ] / Journal of Wtrway., Port, Coast. and Oc. Engrg.
11 Pipeline seabed interaction, free span development /
[ Klomp,W.H.G.;E.A.Hansen;Z.Chen;R.Bijker;M.B.Bryndum ] / The international Society of Offshore and Polar Engineers, The Gague
12 Current induced vibrations and scour of pipelines on a sand bottom /
[ Kristiansen,<TEX>${\O}$</TEX>. ] / PhD thesis
13 A study of scour around submarine pipelines /
[ Littlejohns,P.S.G. ] / Rep. No. Int 113, Hydraulic Research Station
14 Sinking/Floatation of pipelines and other objects on liquefied soil under wave /
[ Sumer,B.M.;FredsFreds<TEX>${\o}$</TEX>e,J.;Christensen,S.;Lind,M.T. ] / Coastal Eng.   ScienceOn
15 Interaction between vibrating pipe and erodible bed /
[ Sumer,B.M.;Mao,Y.;Freds<TEX>${\o}$</TEX>e,J. ] / Journal of Wtrway., Port, Coastal, and Ocean Engineering
16 Local scour under ocean outfall pipe-lines /
[ Chao,J.L.;Hennessy,P.V. ] / Journal of Water pollution control Fed
17 Onset of scour below pipelines and selfburial /
[ Sumer,B.M.;Truelsen,C.;Shchmann,T.;Freds<TEX>${\o}$</TEX>e,J. ] / An International Journal for coastal, Harbour and Offshore Engineers