Počet záznamů: 1
The effect of heavy-duty vehicle crossings on the state of stress of buried pipelines
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SYSNO ASEP 0551801 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The effect of heavy-duty vehicle crossings on the state of stress of buried pipelines Tvůrce(i) Gajdoš, Lubomír (UTAM-F) RID, SAI
Šperl, Martin (UTAM-F) RID, SAI
Kec, J. (CZ)
Crha, P. (CZ)Celkový počet autorů 4 Číslo článku 153 Zdroj.dok. Metals. - : MDPI
Roč. 12, č. 1 (2022)Poč.str. 16 s. Forma vydání Online - E Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova pipe steel L360NE ; gas pipeline ; strains ; through‐wall bending stresses ; backfill loads Obor OECD Applied mechanics CEP TE02000162 GA TA ČR - Technologická agentura ČR Způsob publikování Open access Institucionální podpora UTAM-F - RVO:68378297 UT WOS 000748834900001 EID SCOPUS 85122876679 DOI 10.3390/met12010153 Anotace The aim of this article is to quantify the loads exerted by heavy‐duty vehicles when crossing over buried pipeline. This problem arises in connection to the question pertaining to the use of protective sleeves (casings) applied to gas pipelines in regions with increased demands on pipeline operation safety. An experiment was conducted on a test pipe section made from L360NE pipeline steel equipped with strain gauges along the pipe perimeter, measuring strains in the axial and circumferential directions. Strain measurements were taken after back‐filling the pipe trench, then during vehicle crossings over the empty pipe, and again after pressurizing the test pipe with air. Strainbased hoop stresses at the surface of the empty test pipe were found to exceed 30 MPa after backfilling the trench and increased to more than 40 MPa during the vehicle crossings. Similarly, axial stresses reached extremes of around 17 MPa in compression and 12 MPa in tension. Applying internal air pressure to the test pipe resulted in a reduced net effect on both the hoop and axial stresses. Pracoviště Ústav teoretické a aplikované mechaniky Kontakt Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Rok sběru 2022 Elektronická adresa https://doi.org/10.3390/met12010153
Počet záznamů: 1