Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/46941
Title: Two-dimensional numerical approach for the vibration isolation analysis of thin walled wave barriers in poroelastic soils
Other Titles: Enfoque numérico bidimensional para el análisis de aislamiento de vibraciones de barreras de onda de pared delgada en suelos poroelásticos
Authors: Rodríguez Bordón, Jacob David 
Aznárez González, Juan José 
Maeso Fortuny, Orlando Francisco 
UNESCO Clasification: 330510 Cimientos
2201 Acústica
120601 Construcción de algoritmos
3305 Tecnología de la construcción
Keywords: Dual boundary element method
BEM-FEM
Rayleigh waves
Soils
Vibration analysis, et al
Issue Date: 2016
Publisher: 0266-352X
Journal: Computers and Geotechnics 
Abstract: This paper is concerned with the vibration isolation efficiency analysis of total or partially buried thin walled wave barriers in poroelastic soils. A two-dimensional time harmonic model that treats soils and structures in a direct way by combining appropriately the conventional Boundary Element Method (BEM), the Dual BEM (DBEM) and the Finite Element Method (FEM) is developed to this aim. The wave barriers are impinged by Rayleigh waves obtained fromBiot’s poroelasticity equations assuming a permeable free-surface. The suitability of the proposed model is justified by comparison with available previous results. The vibration isolation efficiency of three kinds ofwave barriers (open trench, simple wall, open trench-wall) in poroelastic soils is studied by varying their geometry, the soil properties and the frequency. It is found that the efficiency of these wave barriers behaves similarly to these in elastic soils, except for high porosities and small dissipation coefficients. The efficiency of open trench-wall barriers can be evaluated neglecting their walls if they are typical sheet piles. This does not happen with walls of bigger cross-sections, leading in general to efficiency losses. Likewise, increasing the burial depth to trench depth ratio has a negative impact on the efficiency.
URI: http://hdl.handle.net/10553/16342
ISSN: 0266-352X
DOI: 10.1016/j.compgeo.2015.08.007
Source: Computers and Geotechnics [ISSN 0266-352X], v. 71, p. 168-179
Rights: by-nc-nd
Appears in Collections:Artículos
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