Vibrations induced by pile driving: numerical modelling and experimental validation; [VIBRAÇÕES INDUZIDAS POR CRAVAÇÃO DE ESTACAS: MODELAÇÃO NUMÉRICA E VALIDAÇÃO EXPERIMENTAL]

• Type: Article in International Scientific Journal
• Date: 2022

Authors

Aires Colaço (Author) FEUP; Costa, PA (Author) Other; Cristiana Ferreira (Author) FEUP; Parente, C (Author) Other; Cardoso, AS (Author) Other

Journal

The Journal is awaiting validation by the Administrative Services.

Title: Geotecnia

Vol. 2022

Pages: 33-54

ISSN: 0379-9522

Indexing

Scopus - 0 Citations

Other information

Authenticus ID: P-00Y-8EQ

DOI: 10.14195/2184-8394_156_2

Abstract (EN): Deep foundations are frequently used for buildings founded over soils with weak geotechnical characteristics. From the economic and technical point of view, impact pile driving is one interesting possibility for its materialization. However, it is necessary to ensure that environmental requirements, namely ground-borne vibrations, are adequately met. For such purpose, the authors propose a numerical prediction tool for a prior prediction of the expected ground-borne vibrations levels. This tool corresponds to an axisymmetric FEM-PML approach, where the non-linear behavior of the soil is described by an equivalent linear methodology. Given the complexity of the problem, an experimental test site was developed and fully characterized for validation purposes. The experimental work comprises laboratory and in-situ soil characterization and measurement of vibrations induced during pile driving. A very good agreement was achieved in the comparison between numerical and experimental results, from which the proposed numerical approach can be considered a suitable tool for the prediction of ground-borne vibrations induced by impact pile driving. © 2022 Sociedade Portuguesa de Geotecnia.

Language: Portuguese

Type (Professor's evaluation): Scientific

No. of pages: 21