Wave-induced pressures in porous bonded revetments. Part II: Pore pressure just beneath the revetment and in the embankment subsoil
Wave-induced pressures in porous bonded revetments. Part II: Pore pressure just beneath the revetment and in the embankment subsoil
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DOI：
10.1016/j.coastaleng.2016.01.004
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发表时间：
2016-04
影响因子：
4.4
通讯作者：
J. C. Alcérreca‐Huerta;H. Oumeraci
中科院分区：
文献类型：
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作者：
J. C. Alcérreca‐Huerta;H. Oumeraci
本文基于使用配套论文（第一部分）中描述的新验证的CFD-CSD模型系统wavePoreGeoFoam进行的参数研究结果，考虑了PBA护岸下方路堤底土的孔隙压力分布，该论文重点关注PBA护岸上的波浪诱导压力（Alcérreca-Huerta和Oumeraci，2016年-在本期中）。在本文（第二部分）中，首先提供了一个总体概述的数值参数的研究，特别是在模型设置的数据提取相关的波浪引起的孔隙水压力在PBA护岸下的砂芯。其次，分析了护岸正下方的波浪孔隙水压力：峰值压力大小、峰值压力在护岸下方的位置以及峰值压力的空间分布。然后，对参数研究的结果进行了过程分析，得到了砂芯中波浪引起的孔隙水压力分布。推导了护岸下孔压分布和砂芯孔压峰值阻尼的预测公式。随后，对拟议公式和De Groot等人（2006年）评估多孔海床孔隙压力的方法进行了比较分析，结果表明两种结果非常一致。最后，本研究结果对工程应用及进一步研究提出建议。
This paper considers pore pressure distribution in the embankment subsoil beneath PBA-revetments, based on the results of the parameter study using the new validated CFD–CSD model systemwavePoreGeoFoamdescribed in the companion paper (Part I), which focusses on wave-induced pressures on PBA-revetments (Alcérreca-Huerta and Oumeraci, 2016-in this issue). In this paper (Part II), a general overview is first provided on the numerical parameter study, especially on the model setup for the extraction of data related to the wave-induced pore pressures in the sand core beneath PBA-revetments. Secondly, wave-induced pore pressure just beneath the revetment is analysed considering: peak pressure magnitude, its location beneath the revetment and their spatial distribution. Afterwards, a process analysis of the results of the parameter study is performed for the wave-induced pore pressure distribution in the sand core. Formulae are developed for the prediction of the pore pressure distribution just beneath the revetment and of the damping of peak pore-pressures in the sand core. Subsequently, a comparative analysis of the proposed formulae and the approach of De Groot et al. (2006) for the assessment of pore pressure in a porous seabed is made, showing a very good agreement between both results. Finally, implications and recommendations for engineering applications and for further research are drawn from the results.