• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>ISOPE-2012;International offshore and polar engineering conference >Local Scour and Pore-water Pressure around a Monopile Foundation under Combined Waves and Currents
【24h】

Local Scour and Pore-water Pressure around a Monopile Foundation under Combined Waves and Currents

机译：波流作用下单桩基础附近的局部冲刷和孔隙水压力

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A series of experiments were conducted in a large flow-structure-soilinteraction flume to analyze the scour development and pore-waterpressure response around a monopile foundation under the action ofcombined waves and currents. In the experiments, the scour depth andpore pressure response around the pile were measured simultaneously.The experimental results indicate that the maximum equilibrium scourdepth due to waves plus currents is greater than a linear sum of thosecaused by waves and currents respectively. This nonlinearity effect isparticularly obvious when the sand-bed condition under currents orwaves alone is in clear-water regime. The maximum equilibrium scourdepth normalized with pile diameter is closely dependent on the Froudenumber with increasing the wave-induced water particle velocitymeanwhile the current velocity keeping constant. The wave-inducedpore pressure gradient around the monopile under the wave troughweakens the buoyant unit weight of the surrounding sand and inducesthe sand-bed more susceptible to scouring.
机译：在一个大型的流动-结构-土壤相互作用的水槽中进行了一系列实验，以分析在波浪和水流的共同作用下，单桩基础周围的冲刷发育和孔隙水压力响应。在实验中，同时测量了桩周围的冲刷深度和孔隙压力响应。实验结果表明，波浪和电流引起的最大平衡冲刷深度大于波浪和电流引起的最大平衡冲刷深度。当仅在水流或波浪作用下的沙床条件处于清水状态时，这种非线性效应尤其明显。随桩径归一化的最大平衡冲刷深度与弗氏数密切相关，随波致水粒子速度的增加而电流速度保持恒定。在波谷下，单桩周围的波致孔隙压力梯度减弱了周围沙粒的浮力单位重量，使沙床更易于冲刷。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号