Abstract This paper proposes a large-strain consolidation model that can consider radial transfer attenuation of vacuum pressure. In order to facilitate the solution, this proposed model is rewritten to take hydraulic head as the independent variable that can reduce the computational complexity. The universality of the proposed model is discussed based on the comparisons with several existing typical models. It is found that the proposed large-strain consolidation model has better applicability and can incorporate the attenuation of vacuum pressure. That’s to say, the model is more universal and can be simplified to typical models under restrictive conditions. In addition, the comparisons between numerical results and laboratory measurements indicate that the proposed model considering radial attenuation of vacuum pressure can better describe the dissipation law of excess pore-water pressure. Meanwhile, the proposed model can be utilized for the different combinations of surcharge pressure and vacuum pressure.

中文翻译：

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考虑真空压力径向传递衰减的大应变固结模型

摘要 本文提出了一种考虑真空压力径向传递衰减的大应变固结模型。为便于求解，将本文提出的模型改写为以水头为自变量，降低计算复杂度。在与几个现有典型模型的比较的基础上讨论了所提出模型的普遍性。结果表明，所提出的大应变固结模型具有更好的适用性，并且可以结合真空压力的衰减。也就是说，该模型更具通用性，可以在限制条件下简化为典型模型。此外，数值结果与实验室测量结果的对比表明，所提出的考虑真空压力径向衰减的模型可以更好地描述超孔隙水压力的耗散规律。同时，所提出的模型可用于增压压力和真空压力的不同组合。