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Numerical Simulation of the Pile Integrity Test on Defected Piles
dc.creator | Ćosić, Mladen | |
dc.creator | Folić, Boris | |
dc.creator | Folić, Radomir | |
dc.date.accessioned | 2023-12-13T12:00:39Z | |
dc.date.available | 2023-12-13T12:00:39Z | |
dc.date.issued | 2014 | |
dc.identifier.issn | 1854-0171 | |
dc.identifier.uri | http://rims.institutims.rs/handle/123456789/763 | |
dc.description.abstract | This paper deals with the development of a discrete numerical 2D and 3D solid pile model with a discontinuity and defects to simulate non-destructive testing using the pile integrity test (PIT). The pile discontinuity and defects were modelled by reducing the specific finite elements and the elastic modulus of concrete. The wave-propagation response of the pile was analyzed based on a step-by-step numerical integration using the Hilber-Hughes-Taylor (HHT) method in the time domain. The concept of a system-response analysis was originally formulated based on the integration of individual reflectograms into a reflectogram surface, which is generated in a 3D cylindrical coordinate system. The use of reflectogram surfaces enables an understanding of wave propagation based on their velocity to a higher level than is usually the case with standard, one-dimensional reflectograms. Changes in the velocity responses on the reflectogram, shifting from a positive to a negative value, point to the locations of discontinuities and defects in the discrete 3D pile model, and there is a clear difference in the reflectograms, depending on the position of the measuring point. The study defines the typological models of the reflectogram: without discontinuities and defects, pile-head defect, defect in the middle of the pile length or a reduced modulus of elasticity in the middle of the pile length, pile-base defect or reduced modulus of elasticity in the pile-base zone and reduced modulus of elasticity in the pile-head zone. | sr |
dc.language.iso | en | sr |
dc.publisher | University of Maribor | sr |
dc.rights | openAccess | sr |
dc.rights.uri | https://creativecommons.org/licenses/by-sa/4.0/ | |
dc.source | Acta Geotechnica Slovenica | sr |
dc.subject | reflectogram surface | sr |
dc.subject | numerical pile model | sr |
dc.subject | solid finite elements | sr |
dc.title | Numerical Simulation of the Pile Integrity Test on Defected Piles | sr |
dc.type | article | sr |
dc.rights.license | BY-SA | sr |
dc.citation.epage | 19 | |
dc.citation.issue | 2 | |
dc.citation.spage | 5 | |
dc.citation.volume | 11 | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_rims_763 | |
dc.identifier.scopus | 2-s2.0-84919422711 | |
dc.identifier.wos | 000346893600002 | |
dc.type.version | publishedVersion | sr |
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