Laboratory Investigation into the Effects of Silty Fines on Liquefaction Susceptibility of Chlef (Algeria) Sandy Soils

Missoum, Hanifi; Belkhatir, Mostefa; Bendani, Karim; Maliki, Mustapha

doi:10.1007/s10706-012-9590-6

Cited by 14 publications

(4 citation statements)

References 27 publications

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“…The two indices decrease with the increase of the fines content till 30% then they increase after this value (Figure 4). The same observation is related by Missoum et al (2013) for Chlef (Algeria) sandy soil.…”

Section: Experimental Investigationsupporting

confidence: 71%

“…The stress path in the plane ( q , ' p ) shows clearly the role of the fines in the decrease of both the average effective pressure and the maximum deviatoric stress (Figures 7a, 8a, 9a and 10a) and in this case, the effect of fines on the undrained behavior of the mixtures may be considered not participating in the force chain of the mixtures. Several laboratory studies reported the same observations, and that the undrained shear resistance may be reduced with the increase of fine contents till a threshold value of fine content (Shen et al 1977;Sladen et al 1985;Troncoso and Verdugo 1985;Koester 1994;Naeini and Baziar 2004;Missoum et al 2013 andKokusho et al 2014). …”

Section: Resultsmentioning

confidence: 66%

“…Many contributions 6 tried to give a physical interpretation to the influence of fines onto liquefaction behavior of sand matrix soils (Thevanayagam 1998;Missoum et al 2013). The well-known liquefaction susceptibility identification, the Chinese criteria (Wang 1979) is essentially based on in-field observations.…”

Section: Introductionmentioning

confidence: 99%

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Shear Behavior of Sand–Silt Mixtures: A Laboratory Investigation of Coastal Silty Sand Soils of Mostaganem

Derkaoui

Missoum²,

Bendani³

et al. 2015

Marine Georesources & Geotechnology

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In recent years, interest in understanding the mechanisms of mechanical instability of porous media leading to catastrophic failure has been continuously revised to include new porous media parameters generating the phenomenon of liquefaction under static or dynamic loadings. Results from experimental test programs have concluded to many physical concepts based on material intrinsic properties, initial states and other characteristics. Despite the great progress on the subject, these concepts do not allow a unified treatment of such porous media. The assessment of critical shear strength of sandy soils as porous media under undrained conditions is a major challenge in stability analysis. Such strength serves to evaluate the occurrence of flow deformation under liquefaction phenomena. The determination of the critical undrained strength is essentially fundamental for the design of soil structures such as earth dams, bridge supports, building foundations as well as soil densification process in order to avoid catastrophic failure due to soil instability manifested by failure or large displacement such as settlement. In this work, experimental program on reconstituted loose and medium dense specimens of terrigenous silica sands with different specified fine contents was carried out in order to analyze its mechanical behavior under undrained conditions. The present paper is an attempt to experimentally describe mechanical behavior and theoretically justify such response of loose and medium dense sand by means of critical state soil parameters

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Section: Experimental Investigationsupporting

confidence: 71%

Section: Resultsmentioning

confidence: 66%

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Shear Behavior of Sand–Silt Mixtures: A Laboratory Investigation of Coastal Silty Sand Soils of Mostaganem

Derkaoui

Missoum²,

Bendani³

et al. 2015

Marine Georesources & Geotechnology

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“…As a geological hazard with severe consequences, soil liquefaction usually leads to uneven settlement of foundations, building collapse, and slope instability, seriously threatening people's lives [6][7][8][9][10]. Many studies have been conducted on the mechanism of soil liquefaction and related discrimination procedures, such as the Seed simplified method [11][12][13][14][15], laboratory studies [16,17], and liquefaction discrimination methods based on artificial intelligence [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

The Analysis of the Correlation between SPT and CPT Based on CNN-GA and Liquefaction Discrimination Research

Bai,

Shen,

Zhao

et al. 2024

CMES

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The objective of this study is to investigate the methods for soil liquefaction discrimination. Typically, predicting soil liquefaction potential involves conducting the standard penetration test (SPT), which requires field testing and can be time-consuming and labor-intensive. In contrast, the cone penetration test (CPT) provides a more convenient method and offers detailed and continuous information about soil layers. In this study, the feature matrix based on CPT data is proposed to predict the standard penetration test blow count N. The feature matrix comprises the CPT characteristic parameters at specific depths, such as tip resistance q c , sleeve resistance f s , and depth H. To fuse the features on the matrix, the convolutional neural network (CNN) is employed for feature extraction. Additionally, Genetic Algorithm (GA) is utilized to obtain the best combination of convolutional kernels and the number of neurons. The study evaluated the robustness of the proposed model using multiple engineering field data sets. Results demonstrated that the proposed model outperformed conventional methods in predicting N values for various soil categories, including sandy silt, silty sand, and clayey silt. Finally, the proposed model was employed for liquefaction discrimination. The liquefaction discrimination based on the predicted N values was compared with the measured N values, and the results showed that the discrimination results were in 75% agreement. The study has important practical application value for foundation liquefaction engineering. Also, the novel method adopted in this research provides new ideas and methods for research in related fields, which is of great academic significance.

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Effects of Non-plastic Fines on Undrained Cyclic Behavior of Loose Sand

Alberto-Hernandez

Towhata

2016

Geotechnical Hazards From Large Earthquakes and Heavy Rainfalls

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Laboratory Investigation into the Effects of Silty Fines on Liquefaction Susceptibility of Chlef (Algeria) Sandy Soils

Cited by 14 publications

References 27 publications

Shear Behavior of Sand–Silt Mixtures: A Laboratory Investigation of Coastal Silty Sand Soils of Mostaganem

Shear Behavior of Sand–Silt Mixtures: A Laboratory Investigation of Coastal Silty Sand Soils of Mostaganem

The Analysis of the Correlation between SPT and CPT Based on CNN-GA and Liquefaction Discrimination Research

Effects of Non-plastic Fines on Undrained Cyclic Behavior of Loose Sand

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