Title of article :
The Long-Term Monitoring Station (LTMS) was set up by Ifsttar (formerly LCPC) for a long observation period (10 years) in the aim of promoting a better understanding of the physical phenomena inherent in the field of environmental acoustics. This paper fo
Author/Authors :
H.C. Li، نويسنده , , S.H. Ju، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Pages :
6
From page :
968
To page :
973
Abstract :
This study uses both the theoretical matrix and finite element methods to simulate the three-dimensional (3D) wave propagation in elastic layered soils with a harmonic point load acting on the surface. Choosing different multi-layer cases (two, four and eight layers) where the point load is in horizontal or vertical direction, we first investigated the accuracy of the two methods, and the comparisons indicate that the results from both are in good agreement. Few authors have investigated the irregular wave amplitude of the Love wave induced in layered soils. This study indicates that the Love wave, unlike the Rayleigh wave, might generate larger ground vibrations for a wave located far away from the source, which is called wave hump in this paper. A ratio of the Young’s modulus between the top and bottom soil layers larger than three may cause obvious this condition. Moreover, a layer thickness between 0.5 and 1.5 times the wave length in the first soil layer can significantly change the magnitude of the wave hump.
Keywords :
Finite element analysis , Love wave , Ground vibration , Theoretic matrix method , Wave hump , Layered soil
Journal title :
Applied Acoustics
Serial Year :
2013
Journal title :
Applied Acoustics
Record number :
1171832
Link To Document :
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