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Numerical Results of Vibration Isolation Effect of Pile Group on Rayleigh Waves in a Fluid-Saturated Half-Space.
- Source :
-
Soil Mechanics & Foundation Engineering . May2023, Vol. 60 Issue 2, p165-172. 8p. - Publication Year :
- 2023
-
Abstract
- Based on Biot's theory of two-phase media, the screening effectiveness of a multi-row pile barrier system on incident Rayleigh waves in a fluid-saturated poroelastic half-space is investigated using a high-precision three-dimensional indirect boundary element method for multi-domain scattering. A companion paper has described the theoretical derivation of the model. In this paper, numerical results indicate that the scattering of waves by piles in fluid-saturated poroelastic media is different from that in single-phase elastic media. The group piles effectively reduce the vibration amplitude in the poroelastic half-space, and the dynamic response strongly depends on the incident frequency, porosity, pile length and spacing, number of pile rows, and row spacing of multi-row piles. Higher values of the frequency and porosity (i.e., softer soil) produce a better vibration isolation effect by the group piles. Special attention should be paid to piles embedded in poroelastic media, as the existence of fluid produces a negative effect on the vibration isolation compared with the case of a single-phase medium. [ABSTRACT FROM AUTHOR]
- Subjects :
- *RAYLEIGH waves
*VIBRATION isolation
*POROELASTICITY
*BOUNDARY element methods
Subjects
Details
- Language :
- English
- ISSN :
- 00380741
- Volume :
- 60
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Soil Mechanics & Foundation Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 164660568
- Full Text :
- https://doi.org/10.1007/s11204-023-09878-z