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首页> 外文期刊>Marine Structures >Undrained bearing capacity of deeply embedded skirted spudcan foundations under combined loading in soft clay
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Undrained bearing capacity of deeply embedded skirted spudcan foundations under combined loading in soft clay

机译：柔软粘土中荷载作用下的深层嵌入式胸罩基础的未造成的承载力

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摘要

The mobile jack-up drilling rigs supported by individual foundations are gradually extended to deep water for drilling activities in the offshore industry. These individual foundations are expected to provide considerable bearing capacity and moment fixity to ensure the entire system safety under the combined vertical, horizontal and moment loadings. Spudcan fitted with skirt at deep embedment may provide additional capacity to meet these demands. This paper carries out a series of probe tests using finite element analysis to investigate the potential benefits of deeply embedded skirted spudcan foundations under combined loading in soft day. Four discrete skirt aspect ratios are considered to discuss the effects of the skirt length on the various bearing capacities. The failure envelopes for each of them are presented to identify the potential benefits. The results show that both the size and the shape of the failure envelopes changed greatly with increasing skirt aspect ratio. A modified analytical expression related to the skirt aspect ratio is proposed to interpret and predict the behavior of deeply embedded skirted spudcan foundations.
机译：各个基础支持的移动升降钻机逐渐扩展到海外工业中钻井活动的深水。这些个体基础预计将提供相当大的承载力和力矩固定度，以确保在垂直，水平和时刻装载下的整个系统安全性。在深层嵌入的裙子配有裙子的炉灶可以提供额外的能力来满足这些需求。本文采用有限元分析进行了一系列探头测试，以研究软天组合载荷下深层嵌入式裙子基础的潜在益处。四个离散裙宽度比被认为讨论裙子长度对各种承载能力的影响。提出了每个每个的故障信封以识别潜在的益处。结果表明，失效信封的尺寸和形状都随着裙梁纵横比的增加而变化。提出了一种与裙边纵横比相关的修改的分析表达，以解释和预测深层嵌入的裙边刺孢菌族基础的行为。

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