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LEAP-GWU-2015 centrifuge test at UC Davis

机译：加州大学戴维斯分校的LEAP-GWU-2015离心机测试

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摘要

For the LEAP-GWU-2015 exercise, a relatively simple centrifuge test was conducted in parallel at 6 centrifuge facilities including the University of California Davis (UCD). The experiment consisted of a submerged medium dense clean sand with a 5° slope subjected to 1Hz ramped sine wave base motion in a rigid container. This paper explains several details of the experiment at UCD including intended and unintended deviations from the specification and the implementation of new techniques for measurement of saturation of the centrifuge model. One unintended critical deviation was the use of pore fluid that was more viscous than specified; this had significant effect on the pore pressure dissipation time. The other important deviation from the specification was the incomplete ground motion sequence. While it is not ideal for purposes of determining the replicability of centrifuge tests, the differences between experiments diversifies the data available for validation of numerical models.
机译：对于LEAP-GWU-2015演习，在包括加州大学戴维斯分校（UCD）在内的6个离心机设施上并行进行了一个相对简单的离心机测试。该实验包括在刚性容器中以5°斜度浸没的中等密度清洁沙子，该正沙在1Hz斜正弦波基础上运动。本文介绍了在UCD进行的实验的一些细节，包括与规范有意和无意之间的偏差以及用于测量离心机模型饱和度的新技术的实施。一种意外的严重偏差是使用比规定的粘度更大的孔隙流体。这对孔隙压力消散时间有显着影响。与规范的另一个重要偏差是不完整的地面运动序列。虽然这对于确定离心测试的可重复性不是理想的选择，但实验之间的差异使可用于数值模型验证的数据多样化。

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