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中文摘要：
利用大型通用有限元软件ABAQUS，基于总应力分析法，建立了饱和软黏土中吸力锚的三维有限元数值模型，通过与物理模型试验对比，验证了数值模型的正确性。计算分析了吸力锚的水平承载力特性及其破坏模式、最优系缆深度上的倾斜承载力包络图。通过对有限元结果进行拟合分析，提出了吸力锚承栽能力的简化计算公式，公式中考虑了长径比、加载角度和土体不排水抗剪强度的影响。
英文摘要：
Based on the total stress method, a three-dimensional FEM numerical model of suction caissons in saturated soft clay is presented by the finite element analysis software ABAQUS. The numerical model is verified by the laboratory test results. In the numerical analysis, the load bearing characteristics, failure mechanism and the envelope diagram on the optimal mooring point are investigated. By fitting analysis of the numerical results, a simplified method for the estimation of the uplift capacity for suction caissons is described. The expressions developed in this paper take into account the influence of the aspect ratio of the caisson, angle of inclination of the loading and the undrained shear strength of the soil.
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