Probabilistic Liquefaction Analysis Using Standard Penetration Test

The Youd etal liquefaction resistance curves developed in 2001 to characterize the cyclic resistance of soil based on SPT test are the most used in the context of the Seed and Idriss simplified procedure as a deterministic model. These curves were developed from a modified database of Seed etal. in...

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Main Authors: Kamel Filali, Badreddine Sbartai
Format: Article
Language:English
Published: Sciendo 2022-06-01
Series:Studia Geotechnica et Mechanica
Subjects:
Online Access:https://doi.org/10.2478/sgem-2022-0009
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author Kamel Filali
Badreddine Sbartai
author_facet Kamel Filali
Badreddine Sbartai
author_sort Kamel Filali
collection DOAJ
description The Youd etal liquefaction resistance curves developed in 2001 to characterize the cyclic resistance of soil based on SPT test are the most used in the context of the Seed and Idriss simplified procedure as a deterministic model. These curves were developed from a modified database of Seed etal. in 1985 with the assumption that the actual peak shear stress (τd) induced at depth h is always less than that predicted by the simplified procedure (τr) of Seed and Idriss (rd= τd/τr<1). By using a suite of equivalent linear site response analyses to adjust the dynamic and the simplified shear stress at depth h, Filali and Sbartai showed in 2017 that the dynamic peak shear stress for some earthquakes is greater than the simplified peak shear stress (rd>1). As in this case, the assumption of the simplified procedure is not verified, Filali and Sbartai have proposed a corrector factor (RC) in the range where rd>1 to adjust the deformable and rigid body. In this paper, we will present a probabilistic study for the evaluation of the liquefaction potential using a database based on SPT measurement compiled after the Chi-Chi Taiwan earthquake, in which the cyclic stress ratio is evaluated using the proposed corrector factor. The objective of this study is to present a probabilistic shape of the cyclic resistance ratio (CRR) curves based on the original simplified method of Seed and Idriss and the corrected version and a new formulation for computing the probability of liquefaction.
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spelling doaj.art-d7761a1df62e45cd8434044e78677f132022-12-22T00:22:35ZengSciendoStudia Geotechnica et Mechanica2083-831X2022-06-0144216217410.2478/sgem-2022-0009Probabilistic Liquefaction Analysis Using Standard Penetration TestKamel Filali0Badreddine Sbartai1LMGHU laboratory, University August 20, 1955-Skikda Road el-hadeik, 21000Skikda, AlgeriaUniversityof BadjiMokhtar-Annaba, BP12Annaba23000, AlgeriaThe Youd etal liquefaction resistance curves developed in 2001 to characterize the cyclic resistance of soil based on SPT test are the most used in the context of the Seed and Idriss simplified procedure as a deterministic model. These curves were developed from a modified database of Seed etal. in 1985 with the assumption that the actual peak shear stress (τd) induced at depth h is always less than that predicted by the simplified procedure (τr) of Seed and Idriss (rd= τd/τr<1). By using a suite of equivalent linear site response analyses to adjust the dynamic and the simplified shear stress at depth h, Filali and Sbartai showed in 2017 that the dynamic peak shear stress for some earthquakes is greater than the simplified peak shear stress (rd>1). As in this case, the assumption of the simplified procedure is not verified, Filali and Sbartai have proposed a corrector factor (RC) in the range where rd>1 to adjust the deformable and rigid body. In this paper, we will present a probabilistic study for the evaluation of the liquefaction potential using a database based on SPT measurement compiled after the Chi-Chi Taiwan earthquake, in which the cyclic stress ratio is evaluated using the proposed corrector factor. The objective of this study is to present a probabilistic shape of the cyclic resistance ratio (CRR) curves based on the original simplified method of Seed and Idriss and the corrected version and a new formulation for computing the probability of liquefaction.https://doi.org/10.2478/sgem-2022-0009earthquakesprobabilistic hazard analysissite effects/liquefactionprobabilityrandom variablewave propagation
spellingShingle Kamel Filali
Badreddine Sbartai
Probabilistic Liquefaction Analysis Using Standard Penetration Test
Studia Geotechnica et Mechanica
earthquakes
probabilistic hazard analysis
site effects/liquefaction
probability
random variable
wave propagation
title Probabilistic Liquefaction Analysis Using Standard Penetration Test
title_full Probabilistic Liquefaction Analysis Using Standard Penetration Test
title_fullStr Probabilistic Liquefaction Analysis Using Standard Penetration Test
title_full_unstemmed Probabilistic Liquefaction Analysis Using Standard Penetration Test
title_short Probabilistic Liquefaction Analysis Using Standard Penetration Test
title_sort probabilistic liquefaction analysis using standard penetration test
topic earthquakes
probabilistic hazard analysis
site effects/liquefaction
probability
random variable
wave propagation
url https://doi.org/10.2478/sgem-2022-0009
work_keys_str_mv AT kamelfilali probabilisticliquefactionanalysisusingstandardpenetrationtest
AT badreddinesbartai probabilisticliquefactionanalysisusingstandardpenetrationtest