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| Description
| - Stále se hledají metody, jak provádět provozní prohlídky stárnoucích železobetonových konstrukcí jaderných elektráren rychleji, levněji a spolehlivěji. Moderní metoda Impact-Echo se zdá být velmi nadějná. Podstata metody spočívá ve zjišťování polohy vad pomocí odrazů elastických vln mezi vadou a povrchem. Tento článek přináší přehled hlavních cílů numerických simulací rychlých přechodových dějů sloužících k detekci a lokalizaci armovacích tyčí, povrchových trhlin různých hloubek a úhlů úklonu vzhledem k povrchu, vnitřních trhlin a dutin v různých polohách. Dále jsou uvedeny výsledky testování možnosti potvrzení, zda dutiny sanované hmotou (cs)
- The methods, how to do in-service inspections of ageing reinforced concrete structures of nuclear power plants more quickly, cheaply and reliably, are still being looked for. The advanced Impact-Echo method seems to be very hopeful. It consists in locating voids’ position by the reflections of elastic waves between the void and surface. This paper gives a main goal survey of numerical simulations of the fast transient processes employed for the detection and localization of reinforcing rods, surface crack with various depth and inclination, internal cracks and cavities in different positions. The next point are the results of numerical testing of the possibilities to verify if grouted (repaired) voids were well filled and detecting of concrete damage caused by expansion of the steel corrosive products. The second way - the voids detection in frequency domain exactly according to ASTM - is demonstrated as well.
- The methods, how to do in-service inspections of ageing reinforced concrete structures of nuclear power plants more quickly, cheaply and reliably, are still being looked for. The advanced Impact-Echo method seems to be very hopeful. It consists in locating voids’ position by the reflections of elastic waves between the void and surface. This paper gives a main goal survey of numerical simulations of the fast transient processes employed for the detection and localization of reinforcing rods, surface crack with various depth and inclination, internal cracks and cavities in different positions. The next point are the results of numerical testing of the possibilities to verify if grouted (repaired) voids were well filled and detecting of concrete damage caused by expansion of the steel corrosive products. The second way - the voids detection in frequency domain exactly according to ASTM - is demonstrated as well. (en)
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| Title
| - Numerical Simulation of the Impact-Echo Diagnostic Method for the Detection Voids, Cracks and Cavities in Thick-Walled Concrete Structures of NPP
- Numerical Simulation of the Impact-Echo Diagnostic Method for the Detection Voids, Cracks and Cavities in Thick-Walled Concrete Structures of NPP (en)
- Numerické simulace diagnostické metody Impact-Echo pro detekci vad, trhlin a dutin v tlustostěnných betonových konstrukcích JE (cs)
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| skos:prefLabel
| - Numerical Simulation of the Impact-Echo Diagnostic Method for the Detection Voids, Cracks and Cavities in Thick-Walled Concrete Structures of NPP
- Numerical Simulation of the Impact-Echo Diagnostic Method for the Detection Voids, Cracks and Cavities in Thick-Walled Concrete Structures of NPP (en)
- Numerické simulace diagnostické metody Impact-Echo pro detekci vad, trhlin a dutin v tlustostěnných betonových konstrukcích JE (cs)
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| skos:notation
| - RIV/49777513:23640/07:00000016!RIV08-GA0-23640___
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/49777513:23640/07:00000016
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - concrete structures; reinforcing rods; Impact-Echo; diagnostics; wave propagation; numerical simulation; crack; void; cavity; corrosion (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...v/mistoKonaniAkce
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...i/riv/nazevZdroje
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
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| http://linked.open...vavai/riv/typAkce
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| http://linked.open.../riv/zahajeniAkce
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| number of pages
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| http://purl.org/ne...btex#hasPublisher
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| https://schema.org/isbn
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| http://localhost/t...ganizacniJednotka
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| is http://linked.open...avai/riv/vysledek
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