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首页> 外文会议>International Symposium on Frontiers in Offshore Geotechnics >Predicted and observed settlements of a subsea rock installation - comparison between field measurements and FE simulations of soft North Sea clay
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Predicted and observed settlements of a subsea rock installation - comparison between field measurements and FE simulations of soft North Sea clay

机译：预测和观察到的海底岩石沉降-现场测量与北海软黏土有限元模拟之间的比较

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In this paper, a study is presented on the possibility to numerically simulate observed settlements of an offshore subsea rock foundation installed on normally consolidated clay. Settlements were monitored at 31 days and 200 days after installation and compared against predictions computed by means of finite element analysis. The results highlight that computations with a material model incorporating a logarithmic stress-strain relationship can accurately predict the consolidation settlements of normally consolidated clay. For long-term settlements, a material model that includes a creep factor is likely to increase the prediction accuracy of the total settlements. This study was performed in order to improve the prediction of soft clay settlements, as this phenomenon may have a large impact on design for sensitive subsea infrastructure installed on the seabed.
机译：在本文中，提出了对数值模拟安装在正常固结黏土上的近海海底岩石地基观测沉降的可能性的研究。在安装后的31天和200天对住区进行监测，并与通过有限元分析计算出的预测值进行比较。结果表明，采用结合了对数应力-应变关系的材料模型进行的计算可以准确预测正常固结黏土的固结沉降。对于长期沉降，包含蠕变因子的材料模型可能会提高总沉降的预测精度。进行这项研究是为了改善对软粘土沉降的预测，因为这种现象可能会对安装在海床上的敏感海底基础设施的设计产生重大影响。

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