Critical undrained shear strength of loose-medium sand-silt mixtures under monotonic loadings

• Autorzy: Bensoula M. , Missoum H. , Bendani K.

Identyfikatory

DOI

10.15632/jtam-pl.53.2.331

• Języki publikacji: EN

Abstrakty

EN

Empirical relationships are developed for estimating the undrained critical shear strength based on experimental triaxial tests under monotonic loadings. The effect of fines content on the undrained shear strength is analyzed for different combinations of density states. The parametric study indicates that in terms of the soil void ratio and fines content properties, the undrained critical shear strength may increase, or decrease as the amount of fines content increases, consequently showing vulnerability to liquefaction influenced by the fines content percentage. A series of monotonic undrained triaxial tests have been undertaken on a reconstituted saturated sand-silt mixtures specimen. Beyond 30% of fines content, it is shown that a fraction of silt participates in the soil skeleton chain force. In this context, the concept of the equivalent intergranular void ratio may be an appropriate parameter to express the critical shear strength of the soil under investigation. This parameter is able to control the undrained shear strength of non plastic silt and sand mixtures for different density states.

Słowa kluczowe

EN

sand; silt; density; undrained; strength

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2015
• Tom: Vol. 53 nr 2
• Strony: 331--344
• Opis fizyczny: Bibliogr. 37 poz., rys., tab.

Twórcy

autor

Bensoula M.

• Laboratory of Construction, Transports and Environment Protection (LCTPE), University of Mostaganem, Mostaganem, Algeria

autor

Missoum H.

• Laboratory of Construction, Transports and Environment Protection (LCTPE), University of Mostaganem, Mostaganem, Algeria

autor

Bendani K.

• Laboratory of Construction, Transports and Environment Protection (LCTPE), University of Mostaganem, Mostaganem, Algeria

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