Frequency Domain Determination of G 0 Using Bender Elements
Frequency Domain Determination of G 0 Using Bender Elements
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使用 Bender 元件频域确定 G 0
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
D. Nash
中科院分区：
文献类型：
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作者：
P. Greening;D. Nash
本文综述了用弯曲单元频域法确定剪切波速的方法。提出了一种增强的方法，这是更快，提供更多的信息比现有的技术。该方法可以使用频谱分析仪-一种常见的硬件来实现。通过一系列的台架试验对重塑粘土样品的方法的有效性进行了证明。与现有的频域实践和建立时域技术的结果进行了比较。结果表明，弯曲单元和土样组成的系统是分散的。速度和频率之间的关系，建立了详细的几个传播路径通过样品，允许一些洞察到影响的色散特性的因素。
Methods for determination of shear wave velocity (vs) with bender elements using frequency domain techniques are reviewed. An enhanced method is proposed, which is quicker and provides more information than existing techniques. The method can be implemented using a spectrum analyzer—a common piece of hardware. The validity of the method is demonstrated by means of a series of bench top tests on a reconstituted clay sample. The results are compared both with existing frequency domain practice and with established time-domain techniques. The results reveal that the system comprising benders elements and soil sample is dispersive. The relationship between velocity and frequency is established in detail for several propagation paths through the sample, allowing some insight to be gained into the factors influencing the dispersion characteristics.