Acoustic measurements of bored pile length using two channels
| Autor: | A. A. Lobanov, D. G. Samarin, V. L. Ustyuzhanin |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 22:180-191 |
| ISSN: | 2310-0044 1607-1859 |
| DOI: | 10.31675/1607-1859-2020-22-4-180-191 |
| Popis: | Non-destructive testing of structures is an effective way to determine their required parameters. One of the promising directions is the acoustic measurement of the pile length using two channels. This method is based on the excitation and registration of elastic waves on the pile surface. A limitation of acoustic methods is that the speed of the elastic waves in the pile is assumed to be known in advance. Research results show that the practical application of this condition can lead to a significant error. This is especially true for bored piles, where the speed of the elastic wave propagation is determined by many different factors. This paper proposes to increase the measurement accuracy of the acoustic wave speed in the bored pile. The use of two measurement channels, which implies the introduction of the specified distance between the receiving devices, made it possible to increase the measurement accuracy up to 5 %. |
| Databáze: | OpenAIRE |
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