The Velocity of Shear Waves in Saturated Soil
The Velocity of Shear Waves in Saturated Soil
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DOI：
10.2136/sssaj2010.0449
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发表时间：
2011-09-01
影响因子：
2.9
通讯作者：
Attenborough, K.
中科院分区：
文献类型：
--
作者：
Whalley, W. R.;Jenkins, M.;Attenborough, K.
利用Bishop和Wesley三轴室测量了三种不同土体中剪切波的速度随固结的变化。在法向固结线上考虑土体的塑性变形，在回弹曲线上考虑弹性变形。在这两种情况下，土壤都是饱和的，并受到各向同性应力环境的影响。对于砂土和粉土，剪切波速度与有效应力的关系相似，但对于粘性土，剪切波速度较小，表现出土的类型依赖性。此外，土体在塑性变形(法向固结线上)和弹性变形(回弹弹性曲线上)时的剪切波速与有效应力之间没有唯一的关系。通过将剪切波速作为孔隙比和有效应力的函数的经验关系与正常固结曲线相结合，我们能够将来自三个土体的数据压缩到共同的曲线上，而不管土体是受到弹性变形还是塑性变形。
The velocities of shear waves in three different soils were measured as a function of consolidation using a Bishop and Wesley triaxial cell. We considered the soil deforming plastically on the normal consolidation line as well as elastic deformation on the rebound curve. In both cases, the soils were saturated and subjected to an isotropic stress environment. The relationships between the velocity of a shear wave and effective stress were similar for the sand and silt soils, but for clay soils the velocity of a shear wave was smaller, showing a soil type dependency. Additionally there was no unique relationship between shear wave velocity and effective stress for soils during plastic deformation (on the normal consolidation line) and elastic deformation (on the rebound elastic curve). By combining empirical relationships between shear wave velocity as a function of void ratio and effective stress with the normal consolidation curve, we were able to collapse the data from three soils onto a common curve irrespective of whether the soil was subjected to elastic or plastic deformations.