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Vertical and torsional impedances for radially inhomogeneous viscoelastic soil layers

✍ Scribed by K.W. Dotson; A.S. Veletsos

Book ID
104322631
Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
852 KB
Volume
9
Category
Article
ISSN
0267-7261

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✦ Synopsis

A study of the dynamic impedances of thin, infinite viscoelastic soil layers with a circular hole is made considering a continuous, ramp-like radial variation for the shear modulus of the material. Both vertically and torsionally excited systems are examined. The impedances are evaluated Over wide ranges of the parameters involved and compared with those obtained both for homogeneous layers, and for inhomogeneous layers with discontinuous variations in shear modulus. In addition, a simple approximate method of analysis based on the Galerkin approach is presented for vertically excited layers, and it is used to assess the parameters that control their high-frequency response.

πŸ“œ SIMILAR VOLUMES

A new approach for vertical impedance in
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✍ K. H. Wang; D. Y. Yang; Z. Q. Zhang; Chin Jian Leo πŸ“‚ Article πŸ“… 2011 πŸ› John Wiley and Sons 🌐 English βš– 932 KB

## SUMMARY In the past studies on pile vibrations, the soil around the pile is mainly regarded as homogeneous or multi‐layered piecewise homogeneous. However, under most engineering conditions, the surrounding soil becomes seriously disturbed due to construction effects. This may strengthen or weak