Liquefaction Analysis using Shear Wave Velocity

Filali, Kamel; Sbartai, Badreddine

doi:10.28991/cej-2020-03091594

Cited by 5 publications

(2 citation statements)

References 17 publications

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“…In this study, insitu Vs. measurements were conducted at the different sites of Hawassa town using MASW in the field. MASW is a surface wave analysis method which is used to measure the Vs. at a surveyed site (Kramer, 1996;Nath and Jakka, 2012;Putti and Satyam, 2018;Kamel and Badreddine, 2020). Then, Vs.30 was calculated using Eq.…”

Section: Methodsmentioning

confidence: 99%

Site response and liquefaction hazard analysis of Hawassa town, Main Ethiopian Rift

Ayele

Meten

Woldearegay

2022

Front. Built Environ.

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The study area is located in one of the most earthquake prone regions in southern Ethiopia, which is characterized by small-to-intermediate earthquake occurrences causing damage to buildings. Predicting liquefaction hazard potential and local site effects are imperative to manage earthquake hazard and reduce the damage to buildings and loss of lives. The objectives of this work were to perform the equivalent linear response analysis (ELA) and shear wave velocity (Vs.)-based liquefaction hazard analysis and classify the site into different seismic site classes based on the European and American codes. The SPT-N and Vs.30 values showed the site falls in the C and D classes based on the NEHRP (2015) code but falls in the B and C classes based on the EC8 (2003) code. The susceptibility of liquefaction was evaluated using grain size analysis curves. Moreover, peak ground acceleration (PGA), spectral acceleration (SA), and maximum strain (%), which are very critical to understanding the local site effects, were estimated by the DeepsoilV.7 program. The cyclic stress ratio and cyclic resistance ratio were used to calculate the factor of safety (FS). A liquefaction potential index (LPI), probability of liquefaction (PL), and probability of liquefaction induced ground failure (PG) were used to assess the probability of liquefaction. The peak ground acceleration (g) values ranged from 0.166 to 0.281 g, whereas spectral acceleration (g) was found to be high at 0.1–1s. The liquefaction susceptibility screening criteria revealed that the study area is highly susceptible to liquefaction. FS is < 1 for a liquefied site, but FS is > 1 for non-liquefied sites. In comparison to non-liquefied sites, the liquefaction forecast site has a liquefaction potential index value of 0–54.16, very likely high PL, and high PG. The findings will be helpful in the design of structures and in solving practical challenges in earthquake engineering.

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Section: Methodsmentioning

confidence: 99%

Site response and liquefaction hazard analysis of Hawassa town, Main Ethiopian Rift

Ayele

Meten

Woldearegay

2022

Front. Built Environ.

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“…However, Vs testing does not produce specimens for classification or may not be performed with adequate details to specify thin liquefiable layers for large measurement intervals. Numerous investigations have been carried out about the liquefaction resistance-Vs relationship [32]- [42]. Although some researchers conducted studies about soil liquefaction potential of Babol city [43]- [45], the obtained results were different because they applied only limited field database in their investigations.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Soil Liquefaction Potential through Three Field Tests-Based Methods: A Case Study of Babol City

Hasanzadeh¹,

Rezaei²,

Shooshpasha³

et al. 2021

IJIE

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During earthquakes, ground failure is commonly caused by liquefaction. Thus, assessment of soil liquefaction potential in earthquake-prone regions is a crucial step towards reducing earthquake hazard. Since Babol city in Iran country is located in a high seismic area, estimation of soil liquefaction potential is of great importance in this city. For this purpose, in the present research, using field-based methods and geotechnical data (such as unit weight of soil, relative density, SPT number, shear wave velocity and cone tip resistance) of 60 available boreholes in Babol, three liquefaction maps were provided. Finally, one comprehensive liquefaction map was presented for soil of Babol city. The obtained results in this paper are well in line with the previous investigations. Based on the results, the factor of safety in 45% of the study area is less than one (liquefaction occurrence). In addition, the results indicate that since each field-based method requires particular data, applying various field tests is necessary for a more accurate liquefaction assessment.

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A GIS-based liquefaction susceptibility mapping utilising the morphotectonic analysis to highlight potential hazard zones in the East Ganga plain

et al. 2022

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Liquefaction Analysis using Shear Wave Velocity

Cited by 5 publications

References 17 publications

Site response and liquefaction hazard analysis of Hawassa town, Main Ethiopian Rift

Site response and liquefaction hazard analysis of Hawassa town, Main Ethiopian Rift

Analysis of Soil Liquefaction Potential through Three Field Tests-Based Methods: A Case Study of Babol City

A GIS-based liquefaction susceptibility mapping utilising the morphotectonic analysis to highlight potential hazard zones in the East Ganga plain

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