<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Liquefaction is a dangerous and temporary phenomenon whereby water-saturated soil loses all or part of its strength. Undrained conditions associated with cyclic loading increase water pressure in soil pores, thereby reducing effective stress. The aim of this study is, on the one hand, to report on the phenomenon of liquefaction of sand, clay and silt deposits in more or less water-saturated zones in the section located at the heart of the central alluvial plain of the Oued Sebou in the mio-plioquaternary Gharb basin and, on the other hand, to study the ability of semi-empirical methods to correctly assess liquefaction potential, while specifying the most appropriate method for the area studied. The study is based on data from experimental results of static penetrometer tests between the Mnasra - Ouelad Salama zone in the Oued Sebou alluvial plain of Morocco's mio-plio-quaternary Gharb basin, made up of sandy, sandy-clay, sandy-silt and silty-sandy formations, which are more sensitive to liquefaction due to their saturation and grain size. We present and discuss the results of Olsen's method, Juang's method and Robertson's method, which are based on the CPT static penetrometer test, as well as looking at the impact of dynamic loading and soil structure on liquefaction probability index values.</p>
</abstract>

Liquefaction is a dangerous and temporary phenomenon whereby water-saturated soil loses all or part of its strength. Undrained conditions associated with cyclic loading increase water pressure in soil pores, thereby reducing effective stress. The aim of this study is, on the one hand, to report on the phenomenon of liquefaction of sand, clay and silt deposits in more or less water-saturated zones in the section located at the heart of the central alluvial plain of the Oued Sebou in the mio-plioquaternary Gharb basin and, on the other hand, to study the ability of semi-empirical methods to correctly assess liquefaction potential, while specifying the most appropriate method for the area studied. The study is based on data from experimental results of static penetrometer tests between the Mnasra - Ouelad Salama zone in the Oued Sebou alluvial plain of Morocco's mio-plio-quaternary Gharb basin, made up of sandy, sandy-clay, sandy-silt and silty-sandy formations, which are more sensitive to liquefaction due to their saturation and grain size. We present and discuss the results of Olsen's method, Juang's method and Robertson's method, which are based on the CPT static penetrometer test, as well as looking at the impact of dynamic loading and soil structure on liquefaction probability index values.

Assessment of Liquefaction Potential by Comparing Semi-Empirical Methods Based on the CPT Test

Laboratory of Applied Geophysics, Geotechnical, Geological Engineering and Environmental Sciences

Mohammadia School Engineering, Mohammed V University in Rabat

Civil and Environmental Engineering

This work is licensed under the Creative Commons Attribution 4.0 International License.

Liquefaction is a dangerous and temporary phenomenon whereby water-saturated soil loses all or part of its strength. Undrained conditions associated with...

Assessment of Liquefaction Potential by Comparing Semi-Empirical Methods Based on the CPT Test

Published Online: Jun 26, 2024

Page range: 164 - 179

DOI: https://doi.org/10.2478/cee-2024-0014

Keywords
Liquefaction, Cone Penetration Test (CPT), Semi-Empirical Methods, Liquefaction probability index, Earthquake study

© 2024 Badr Berkat et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Assessment of Liquefaction Potential by Comparing Semi-Empirical Methods Based on the CPT Test

Published Online: Jun 26, 2024

Page range: 164 - 179

DOI: https://doi.org/10.2478/cee-2024-0014

KeywordsLiquefaction, Cone Penetration Test (CPT), Semi-Empirical Methods, Liquefaction probability index, Earthquake study

© 2024 Badr Berkat et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
Liquefaction, Cone Penetration Test (CPT), Semi-Empirical Methods, Liquefaction probability index, Earthquake study