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Compression Behaviour of Chlef Sand and Transition of Fines Content Using Pressure-Dependent Maximum Void Ratios of Sand
https://orcid.org/0000-0002-9451-7064
Abstract This paper presents a study on Chlef sand to examine the effect of fines content ($ F_{c} $), relative density (RD) and initial conditions on the compressibility behavior. The interpretation of the results is based on the concept of the intergranular voids ratio ($ e_{s} $) and two hypoplastic parameters model Hs and n for calculation of the maximum voids ratio. The œdometric tests results made in the laboratory show that the fines content transition ($ F_{ct} $) of Chlef sand is in good agreement with the results published in the literature. The results obtained indicate that the higher value of fines fraction ($ F_{c} $) in the sand cause an increase in the compressibility coefficient ($ C_{c} $) and the granular compressibility coefficient ($ C_{c-s} $). Moreover increasing the density from 65 to 80% decreased both coefficients ($ C_{c} $) and ($ C_{c-s} $). The samples prepared with the moist tamping method (w = 3%) have compressibility coefficients greater than samples prepared by the dry pluviation method (w = 0%). We have shown that the fines content transition ($ F_{ct} $) depends on the initial state of the samples (relative density, preparation method and maximum void ratio). Finally the granulometric characteristics ($ D_{10} $, $ D_{50} $ and $ C_{u} $) have a significant effect on compression behavior. Nevertheless a good exponential correlation has been found between the compressibility coefficient ($ C_{c} $), the granular compressibility coefficient ($ C_{c-s} $) and the effective diameter ($ D_{10} $), the average diameter ($ D_{50} $) and the uniformity coefficient ($ C_{u} $).
Compression Behaviour of Chlef Sand and Transition of Fines Content Using Pressure-Dependent Maximum Void Ratios of Sand
https://orcid.org/0000-0002-9451-7064
Abstract This paper presents a study on Chlef sand to examine the effect of fines content ($ F_{c} $), relative density (RD) and initial conditions on the compressibility behavior. The interpretation of the results is based on the concept of the intergranular voids ratio ($ e_{s} $) and two hypoplastic parameters model Hs and n for calculation of the maximum voids ratio. The œdometric tests results made in the laboratory show that the fines content transition ($ F_{ct} $) of Chlef sand is in good agreement with the results published in the literature. The results obtained indicate that the higher value of fines fraction ($ F_{c} $) in the sand cause an increase in the compressibility coefficient ($ C_{c} $) and the granular compressibility coefficient ($ C_{c-s} $). Moreover increasing the density from 65 to 80% decreased both coefficients ($ C_{c} $) and ($ C_{c-s} $). The samples prepared with the moist tamping method (w = 3%) have compressibility coefficients greater than samples prepared by the dry pluviation method (w = 0%). We have shown that the fines content transition ($ F_{ct} $) depends on the initial state of the samples (relative density, preparation method and maximum void ratio). Finally the granulometric characteristics ($ D_{10} $, $ D_{50} $ and $ C_{u} $) have a significant effect on compression behavior. Nevertheless a good exponential correlation has been found between the compressibility coefficient ($ C_{c} $), the granular compressibility coefficient ($ C_{c-s} $) and the effective diameter ($ D_{10} $), the average diameter ($ D_{50} $) and the uniformity coefficient ($ C_{u} $).
Compression Behaviour of Chlef Sand and Transition of Fines Content Using Pressure-Dependent Maximum Void Ratios of Sand
https://orcid.org/0000-0002-9451-7064
Abstract This paper presents a study on Chlef sand to examine the effect of fines content ($ F_{c} $), relative density (RD) and initial conditions on the compressibility behavior. The interpretation of the results is based on the concept of the intergranular voids ratio ($ e_{s} $) and two hypoplastic parameters model Hs and n for calculation of the maximum voids ratio. The œdometric tests results made in the laboratory show that the fines content transition ($ F_{ct} $) of Chlef sand is in good agreement with the results published in the literature. The results obtained indicate that the higher value of fines fraction ($ F_{c} $) in the sand cause an increase in the compressibility coefficient ($ C_{c} $) and the granular compressibility coefficient ($ C_{c-s} $). Moreover increasing the density from 65 to 80% decreased both coefficients ($ C_{c} $) and ($ C_{c-s} $). The samples prepared with the moist tamping method (w = 3%) have compressibility coefficients greater than samples prepared by the dry pluviation method (w = 0%). We have shown that the fines content transition ($ F_{ct} $) depends on the initial state of the samples (relative density, preparation method and maximum void ratio). Finally the granulometric characteristics ($ D_{10} $, $ D_{50} $ and $ C_{u} $) have a significant effect on compression behavior. Nevertheless a good exponential correlation has been found between the compressibility coefficient ($ C_{c} $), the granular compressibility coefficient ($ C_{c-s} $) and the effective diameter ($ D_{10} $), the average diameter ($ D_{50} $) and the uniformity coefficient ($ C_{u} $).
Compression Behaviour of Chlef Sand and Transition of Fines Content Using Pressure-Dependent Maximum Void Ratios of Sand
Bouri, Djamel Eddine (author) / Brahimi, Abdelkader (author) / Krim, Abdallah (author) / Arab, Ahmed (author) / Najser, Jan (author) / Mašín, David (author)
2021
Article (Journal)
Electronic Resource
English
BKL:
57.00$jBergbau: Allgemeines
/
38.58
Geomechanik
/
57.00
Bergbau: Allgemeines
/
56.20
Ingenieurgeologie, Bodenmechanik
/
38.58$jGeomechanik
/
56.20$jIngenieurgeologie$jBodenmechanik
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