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Fragility assessment of traffic embankments exposed to earthquake-induced liquefaction
ID Oblak, Aleš (Avtor), ID Kosič, Mirko (Avtor), ID Viana da Fonseca, António (Avtor), ID Logar, Janko (Avtor)

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Izvleček
In this study, a vulnerability analysis of road and railway embankments to earthquake-induced liquefaction deformations was carried out. The result of the vulnerability analysis was a set of fragility curves that were obtained for several embankment and soil-profile geometries, as well as for the material properties of the liquefiable layer. The fragility curves were based on the numerical calculations obtained from FLAC 2D software in conjunction with the PM4Sand material model used for simulating the behavior of liquefaction-susceptible soils during dynamic shaking. The fragility analysis was performed using an incremental dynamic analysis approach considering a set of 30 ground motions and at least eight intensity levels. Permanent vertical displacement of the middle top point of the embankment was selected as the damage parameter, while the intensity measure was expressed in terms of peak ground acceleration at bedrock. Fragility curves were derived for three damage states, including minor, moderate and extensive damage, based on threshold values proposed in the literature. The influence of a single model variable was examined through comparison of the fragility curves.

Jezik:Angleški jezik
Ključne besede:civil engineering, soil liquefaction, fragility curve, traffic embankment, FLAC, PM4Sand
Vrsta gradiva:Članek v reviji
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FGG - Fakulteta za gradbeništvo in geodezijo
Status publikacije:Objavljeno
Različica publikacije:Objavljena publikacija
Leto izida:2020
Št. strani:19 str.
Številčenje:Vol. 10, iss. 19, art. 6832
PID:20.500.12556/RUL-124817 Povezava se odpre v novem oknu
UDK:624
ISSN pri članku:2076-3417
DOI:10.3390/app10196832 Povezava se odpre v novem oknu
COBISS.SI-ID:30533379 Povezava se odpre v novem oknu
Datum objave v RUL:19.02.2021
Število ogledov:942
Število prenosov:214
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Gradivo je del revije

Naslov:Applied sciences
Skrajšan naslov:Appl. sci.
Založnik:MDPI
ISSN:2076-3417
COBISS.SI-ID:522979353 Povezava se odpre v novem oknu

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:01.10.2020

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:gradbeništvo, likvifakcija tal, krivulja ranljivosti, nasipi prometnic, FLAC, PM4Sand

Projekti

Financer:EC - European Commission
Program financ.:H2020
Številka projekta:700748
Naslov:Assessment and mitigation of liquefaction potential across Europe: a holistic approach to protect structures / infrastructures for improved resilience to earthquake-induced liquefaction disasters
Akronim:LIQUEFACT

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