自升式钻井平台桩腿入泥深度计算研究

Research on leg penetration depth calculation of jack-up drilling platform

开展了桩腿与海底土相互作用分析,提出了自升式钻井平台桩腿承载力计算模型,该模型考虑了插桩速度、桩靴上覆土压力、群桩效应等因素的影响。现场应用表明,本文提出的自升式钻井平台桩腿承载力计算模型在预测桩腿入泥深度时具有非常高的准确度,相对误差在10%以内。

The leg bearing capacity model of jack-up drilling platform has been built through analysis on leg and seabed soil interaction. And the factors such as the penetration speed, pile shoe overburden pressure, the effect of group piles have been taken into consideration during modeling. Field application in dicates that the proposed calculation model for leg bearing capacity of the jack up drilling platform has high accuracy in predicting the leg penetration depth, with the relative error less than 10%.