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Experimental and numerical studies on lateral bearing capacity of bucket foundation in saturated sand

机译：饱和砂土中桶形基础横向承载力的试验与数值研究。

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摘要

The lateral bearing capacity of bucket foundation was studied by tests and FEM. The characteristics of bearing capacity under horizontal loading were obtained experimentally. In this paper the results of the numerical and tests study on the bearing capacity and failure mode of bucket foundations that support wind turbine structures in homogeneous medium sand were presented, considering the frictional contact behavior of interface between skirt and subsoil. The height to diameter ratios (L/D) were taken from 0.3 to 1.0. The results of test and FEM showed that the rotation is the main failure mode of bucket foundation, and the center of rotation changes with the height to diameter ratios. The inclination angle for the ultimate lateral bearing capacity of the wide-shallow bucket foundation is about 3.0 degrees, which is different from small diameter foundations, such as suction anchors and piles. The comparison of results from FEM, tests and simplified calculation method proves the accuracy of the research results.
机译：通过试验和有限元分析研究了桶形基础的侧向承载力。通过实验获得了水平载荷下的承载力特性。考虑裙边与地基界面的摩擦接触行为，提出了在均质介质砂土中支撑风力发电机结构的桶形基础的承载力和破坏模式的数值试验研究结果。高度与直径之比（L / D）为0.3至1.0。试验和有限元分析结果表明，旋转是铲斗基础的主要破坏方式，旋转中心随高径比的变化而变化。宽浅桶形基础的极限侧向承载力的倾斜角度约为3.0度，这与小直径基础（如吸力锚和桩）不同。有限元，试验和简化计算方法的结果比较证明了研究结果的准确性。

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