Abstract The use of field experience and empirical relations for the design of a vibro-compaction encourages the development of the understanding of vibratory compaction for granular material. Field measurements are difficult to conduct in homogeneous loose sands, and there is a lack of adequate control of the test conditions in the field. Hence, a model vibrator was fabricated to perform 1g vibro-compaction model tests. The effectiveness was evaluated in terms of cone penetration tests before and after compaction. The 1g model test results suggested that the degree and radial extent of compaction increased with frequency for the considered sand for a fixed vibrator mass and eccentricity. A coupled Eulerian Lagrangian-based numerical model simulating the 1g model tests was created, and the results from the physical model tests and numerical simulations were found to be in good agreement. Following this validation, the numerical framework was used to study the influence of a range of frequencies and the nature of the sand on the degree and extent of compaction. The numerical simulations were found to not only provide spatial and temporal compaction analysis freedom but also to serve as a substitute for laborious and time-consuming physical model tests.

中文翻译：

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基于欧拉拉格朗日耦合的振动压实与模型振动器数值模拟

摘要 使用现场经验和经验关系设计振动压实促进了对颗粒材料振动压实的理解。在均质松散砂岩中难以进行现场测量，并且缺乏对现场测试条件的充分控制。因此，制造了一个模型振动器来执行 1g 振动压实模型测试。根据压实前后的锥入度测试来评估有效性。1g 模型测试结果表明，对于固定的振动器质量和偏心率，所考虑的沙子的压实程度和径向范围随着频率的增加而增加。创建了一个基于欧拉拉格朗日的耦合数值模型，模拟 1g 模型测试，并且发现物理模型测试和数值模拟的结果非常一致。在此验证之后，数值框架用于研究一系列频率和沙子的性质对压实程度和程度的影响。发现数值模拟不仅提供了空间和时间压实分析的自由度，而且还可以替代费力费时的物理模型测试。