Scour below marine pipelines in shoaling conditions for random waves

被引：20
|
作者：
Myrhaug, Dag [1 ]
Ong, Muk Chen [1 ]
Gjengedal, Cecilie [1 ]
机构：
[1] Norwegian Univ Sci & Technol, Dept Marine Technol, NO-7491 Trondheim, Norway
来源：
COASTAL ENGINEERING | 2008年 / 55卷 / 12期
关键词：
Scour depth; Pipeline; Shear stress; Shoaling; Breaking; Random waves; Stochastic approach;
D O I：
10.1016/j.coastaleng.2008.03.006
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper provides an approach by which the scour depth below pipelines in shoaling conditions beneath non-breaking and breaking random waves can be derived. Here the scour depth formula in shoaling conditions for regular non-breaking and breaking waves with normal incidence to the pipeline presented by Cevik and Yuksel [Cevik, E. and Yuksel, Y., (1999). Scour under submarine pipelines in waves in shoaling conditions. ASCE J. Waterw., Port, Coast. Ocean Eng., 125 (1), 9-19.] combined with the wave height distribution including shoaling and breaking waves presented by Mendez et al. [Mendez, F.J., Losada, I.J. and Medina, R., (2004). Transformation model of wave height distribution on planar beaches. Coast. Eng. 50 (3), 97-115.] are used. Moreover, the approach is based on describing the wave motion as a stationary Gaussian narrow-band random process. An example of calculation is also presented. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：1219 / 1223
页数：5
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