期刊论文

中文

海洋通报

1001-6392

2022

41

1

102-113

10.11840/j.issn.1001-6392.2022.01.011

52071031:国家自然科学基金 18B132:湖南省教育厅优秀青年项目

本校为第一机构

为减轻桩基局部冲刷对近海结构物稳定性造成的影响,采用套筒作为冲刷防护措施。在波流水槽中开展局部冲刷物理模型试验,改变波流条件、套筒相对高度和直径,记录套筒内外冲刷过程及冲刷深度发展历时,利用地形扫描仪测量冲刷后的床面形态,分析各工况下冲刷坑形态的差异,讨论影响套筒冲刷防护效果的主要因素。试验结果表明:套筒结构具有较好的防冲效果,本试验工况下,筒内冲刷深度最高可减小70%,筒内外最大冲刷深度可减小40%左右。套筒高度对筒内冲刷的影响比套筒直径更为显著,筒内最大冲刷深度随套筒高度的增大而减小。套筒直径主要影响筒外冲刷,套筒埋置于初始床面以上时,筒外最大冲刷深度随直径的...

A sleeve installed around the vertical pile for reducing the damage of local scour to the stability of offshore structure was proposed.Local scour model tests were carried out in a wave-current flume.The scour processes and the developments of scour depth inside and outside the sleeve were recorded under various waves,current velocities,sleeve relative heights and diameters.The topography of bed after scour was measured by a laser scanner.The difference of the form of scour hole under various conditions was analyzed to study the main factors affecting the protective effects of sleeve.The resul...