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自升式钻井平台抗滑移能力分析

     

摘要

在理论公式的基础上,通过Abaqus软件模拟桩靴在土壤中的滑移过程,建立一种分析桩靴抗滑移阻力数值方法.首先研究各船级社抗滑移理论公式;在此基础上,建立桩靴-土系统有限元模型,利用CEL方法,建立研究所需工况,研究土体受力产生流动变形,得出抗滑移阻力数值解和土壤流动机制;最后将抗滑移阻力理论解与数值解进行对比分析与讨论.弥补现有理论公式不足,为计算桩靴抗滑移阻力提供一种精确的方法.%Based on the formula, the paper simulates the process of spudcan slide in the soil, and now to construct a nu-merical method to analye the anti-slide force of spudcan. First of all, the paper researches the theoretical anti-slide formula from different paper, based on which, the finite element model of spudcan-soil system is built to, using CEL method and es-tablishing the required conditions, study on the flow deformation of soil and calculate the numerical result. Finally, the theor-etical result and numerical result are compared and discussed to compensate for the lack of theoretical formula and provide a accurate method to calculate the anti-slide force of spudcan.

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