Іdentification of defects of the piles with reflected waves

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dc.contributor.authorLebid, Oleksij
dc.contributor.authorKaliukh, Iurii
dc.contributor.authorBerchun, Yaroslav
dc.contributor.authorChernyshev, Dmytro
dc.date.accessioned2020-05-12T08:04:05Z
dc.date.available2020-05-12T08:04:05Z
dc.date.issued2018
dc.description.abstractUsing current mathematical models of wave processes does not allow diagnosing defects in piles with sufficient accuracy. The necessity of creating of a pile generalized dynamic model which would allow to receive more reliable signals of wave processes in reinforced concrete piles has been substantiated. For numerical simulation of dynamic processes, a flat scheme for an axisymmetric pile based on the finite element method of "deep beam" within LIRA software complex was used. Sand was chosen as the soil around the pile due to the fact that sand and concrete characteristic impedance is very different, which provides a good echo from the pile toe (from the interface of the media). A comparative analysis of the results of mathematical modeling has made it possible to state that the most informative (in terms of differences in the comparison of graphs from one another), both for time signals and amplitude spectra, is the application of a horizontal impact on the lateral surface near the border with the pile base and the signal recording that comes to the speed sensors located in the vertical direction on the pile head near the border with the lateral surface. This option will be thoroughly tested numerically and experimentally in subsequent authors' studies.uk_UA
dc.identifier.citationІdentification of defects of the piles with reflected waves / Oleksij Lebid, Iurii Kaliukh, Yaroslav Berchun, Dmytro Chernyshev // Екологічна безпека та природокористування : зб. наук. праць / Київ. нац. ун-т буд-ва і архіт., Ін-т телекомунікацій і глобал. інформ. простору; гол. ред. : О. С. Волошкіна, О. М. Трофимчук – Київ : ІТГІП, 2018. – Вип. 1 (25). – С. 64 – 76. – Бібліогр. : 24 назви.uk_UA
dc.identifier.issn2411-4049
dc.identifier.urihttps://repositary.knuba.edu.ua/handle/987654321/3611
dc.language.isoenuk_UA
dc.publisherІТГІПuk_UA
dc.subjectidentificationuk_UA
dc.subjectdefectsuk_UA
dc.subjectpileuk_UA
dc.subjectreflected wavesuk_UA
dc.subjectnumerical simulationuk_UA
dc.subjectкафедра водопостачання та водовідведенняuk_UA
dc.subject.udc624.154:620.179.1.001.5uk_UA
dc.titleІdentification of defects of the piles with reflected wavesuk_UA
dc.typeArticleuk_UA

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