潘新颖,赵恩金,拾兵,于冬,黄修筠

• 1:中国海洋大学工程学院

摘要(Abstract)：

子母管作为海洋工程中的新型管线结构,越来越受到重视。本文运用物理试验的方法研究了稳定流中海底子母管对海床局部冲刷的影响。通过控制不同海底子母管间间距,管径及来流流速,分析出了两管间隙比对冲刷坑内冲刷深度的影响,同时,从泥沙起动原理出发,利用流体的连续性特征,推导了与子母管间间隙比、管径及来流流速相关的冲刷坑深度理论公式,该理论公式与试验结果吻合良好,可预测子母管下泥沙的冲刷。通过试验可知,雷诺数及子母管间间隙对冲刷坑深度有较大的影响。在一定雷诺数下,子母管间间隙越小,冲刷坑深度越大,泥沙输移越也越严重。在管线间间隙比不变时,雷诺数增加同样能加强管线下方冲刷。

关键词(KeyWords)： 子母管线;冲刷深度;海流;冲刷机理;试验研究

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51279189)资助~~

作者(Author): 潘新颖,赵恩金,拾兵,于冬,黄修筠

DOI: 10.16441/j.cnki.hdxb.20150184

参考文献(References)：

• [1]Brockbank J.Bundled pipes speed offshore laying[J].Oil and Gas Journal,1990,88(19):78-84.
• [2]杨玻,倪浩,朱晓环.一种新型的置换海底子母管道技术[J].中国造船,2007,48:563-570.Yang H,Ni H,Zhu X H.An Applicable Replacement Bundled Pipeline Structure for Offshore Marginal Oilfield Development[J].Shipbuilding of China,2007,48:563-570.
• [3]张芝永,拾兵,范菲菲,等.近床面水平圆柱局部冲刷二维数值模拟[J].计算力学学报,2012,29(5):759-764.Zhang Z Y,Shi B,Fan F F,et al.Two-dimensional numerical simulation of local scour around horizontal cylinder near sand bed[J].Chinese Journal of Computational Mechanics,2012,29(5):759-764.
• [4]刘勇,拾兵,杨立鹏,等.海底管线作用下的泥沙休止角的试验研究[J].海洋湖沼通报,2012,4:31-35.Liu Y,Shi B,Yang L P,et al.Experimental study on the angle of repose of sediment under the action of submarine pipeline[J].Transactions of Oceanology and Limnology,2012,4:31-35.
• [5]Yang L P,Shi B,Guo Y K,et al.Calculation and experiment on scour depth for submarine pipeline with a spoiler[J].Ocean Engineering,2012,55:191-198.
• [6]夏令.波浪作用下的泥沙起动及海底管线周围局部冲刷[D].浙江:浙江大学,2006.Xia L.Study on the Sediment Onset and Local Scour Around Submarine Pipeline Under the Action of Wave[D].Zhejiang:Zhe Jiang University.2006.
• [7]潘冬子,王立忠,潘存鸿,等.推进波作用下海底管线周围局部冲刷实验研究[J].海洋工程,2007,25(4):27-35.Pan D Z,Wang L Z,Pan C H,et al.Local scour around pipeline due to progressive wave[J].The Ocean Engineering,2007,25(4):27-35.
• [8]崔金声,高福平,韩希霆,臧志鹏.海流作用下子母管结构横向涡激振动[J].海洋工程,2012,30(1):18-24.Cui J S,Gao F P,Han X T,et al.Vortex-induced transverse vibration of piggyback pipelines in steady current[J].The Ocean Engineering,2012,30(1):18-24.
• [9]Kalghatgi S G,Sayer P G.Hydrodynamic Forces on Piggyback Pipeline Configurations[J].Journal of Waterway,Port,Coastal and Ocean Engineering,1997,123:16-22.
• [10]Zhao M,Cheng L.Numerical Modeling of Local Scour below a Piggyback Pipeline in Currents[J].Journal of Hydraulic Engineering,2008,134:1452-1463.
• [11]马良,王金英,孙绍述,等.海底(子-母)管道在波流作用下水动力载荷的实验研究[J].大连大学学报,1993,3(4):54-63.Ma L,Wang J Y,Sun S S,et al.Experimental Study of Hydrodynamic Force Loading under the Action of Wave Current on Submarine Composite Pipelines[J].Journal of Dalian University,1993,3(4):54-63.
• [12]成小飞,王永学,王国玉.波流共同作用下海底子母管线水动力的物理模型试验研究[J].海洋学报,2012,34(4):172-180.Cheng X F,Wang Y X,Wang G Y.Physical model experimental study of hydrodynamic forces on submarine piggyback pipeline under waver-current coexisting action[J].Acta Oceanology Sinica,2012,34(4):172-180.
• [13]谷凡,周晶,黄承逵,等.海底管线局部冲刷机理研究综述[J].海洋通报,2009,28(5):110-120.Gu F,Zhou J,Huang C K,et al.Research on mechanism of local scour around submarine pipeline[J].Marine Science Bulletin,2009,28(5):110-120.
• [14]Allen J R L.Simple models for the shape and symmetry of tidal sand waves:statically stable equilibrium forms[J].Marine Geology,1982,48(12):31-49.
• [15]Brrs B.Numerical modeling of flow and scour at pipeline[J].Journal of Hydraulic Engineering,1999,125(5):511-523.
• [16]邵学军,王兴奎.河流动力学概论[M].北京:清华大学出版社,2005.Shao X J,Wang X K.Introduction to River Mechanics[M].Beijing:Tsinghua University Press,2005.
• [17]Cheng L,Chiew Y W.Modeling of flow around a near-bed pipeline with a spoiler[J].Ocean Engineering,2003,30:1595-1611.
• [18]Zhao J,Wang X.CFD Numerical simulation of the submarine pipeline with a spoiler[J].Journal of offshore mechanics and arctic engineering,2009,131(3):031601-1-031601-5.
• [19]杨兵,高福平,吴应湘,等.海流引起海底管道悬空的数值模拟[J].中国造船,2005,46(增刊):22l-226.Yang B,Gao F P,Wu Y X,et al.Numerical study of the occurrence of pipeline spanning under the influence of steady current[J].Shipbuilding of China,2005,46:22l-226.
• [20]Mao Y.The interaction between a pipeline and an erodible bed[D].Denmark:The Technology University of Denmark,1986.
• [21]Chiew Y M.Mechanics of local scour around submarine pipelines[J].Journal of Hydraulic Engineering,1990,116(4):515-529.

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