The application of selected tomographic imaging methods in the inspection of concrete bridges

• Autorzy: Topczewski Łukasz

Identyfikatory

DOI

10.7409/rabdim.025.020

Warianty tytułu

PL

Zastosowanie wybranych metod obrazowania tomograficznego w kontroli mostów betonowych

• Języki publikacji: EN PL

Abstrakty

EN

Majority of non-destructive testing (NDT) methodologies necessitate access to only one side of the structure. Due to factors such as wave absorption or reflection by the test object, it is necessary to position the transmitter and receiver on different sides of the test surface. This particular investigative modality is designated as tomography. The article reviews the literature on the use of tomography for the inspection of concrete structures, and presents the results of research conducted on the use of GPR in tomographic mode on a bridge support. It is concluded that GPR in tomographic mode is well suited for mapping larger areas with varying concrete quality. Conversely, radiography is particularly well suited to point measurements and is not limited by the influence of dense reinforcement mesh. It has been determined that when employing a suitable radiation source, the risk to human health when utilising this method is negligible. The article examines X-ray tomography and ground-penetrating radar (GPR) techniques, both employing tomographic imaging and requiring access to at least two sides of the structure. It aims to compare the two methods in terms of accuracy and data acquisition, based on the author’s experimental results and evidence from international literature.

PL

Większość metod badań nieniszczących (NDT) wymaga dostępu tylko do jednej strony konstrukcji. Ze względu na takie czynniki, jak pochłanianie lub odbicie fal przez badany obiekt, konieczne jest umieszczenie nadajnika i odbiornika po różnych stronach badanej powierzchni. Ta szczególna metoda badawcza jest określana jako tomografia. W artykule dokonano przeglądu literatury dotyczącej wykorzystania tomografii do kontroli konstrukcji betonowych oraz przedstawiono wyniki badań przeprowadzonych nad wykorzystaniem GPR w trybie tomograficznym na podporze mostu. Stwierdzono, że GPR w trybie tomograficznym dobrze nadaje się do mapowania większych obszarów o zróżnicowanej jakości betonu. Natomiast radiografia nadaje się szczególnie dobrze do pomiarów punktowych i nie jest ograniczona wpływem gęstej siatki zbrojeniowej. Ustalono, że przy zastosowaniu odpowiedniego źródła promieniowania ryzyko dla zdrowia ludzkiego związane z wykorzystaniem tej metody jest znikome. W artykule przedstawiono także techniki tomografii rentgenowskiej i georadaru (GPR), które wykorzystują obrazowanie tomograficzne i wymagają dostępu do co najmniej dwóch stron konstrukcji. Celem pracy jest porównanie tych dwóch metod pod względem dokładności i pozyskiwania danych w oparciu o wyniki eksperymentów autora i dowody z międzynarodowej literatury.

Słowa kluczowe

EN

assessment; bridge; GPR; inspection; tomography; radiography

PL

GPR; inspekcja; most; ocena stanu technicznego; radiografia; tomografia

• Wydawca: Instytut Badawczy Dróg i Mostów
• Czasopismo: Roads and Bridges - Drogi i Mosty
• Rocznik: 2025
• Tom: Vol. 24, no. 3
• Strony: 341--352
• Opis fizyczny: Bibliogr. 31 poz., rys.

Twórcy

autor

Topczewski Łukasz

• West Pomeranian University of Technology in Szczecin, Faculty of Civil and Environmental Engineering, 50 Piastów Av., 70-311 Szczecin, Poland

• https://orcid.org/0000-0002-8416-7937

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