Effect of geotextile reinforcement on shear strength of sandy soil: laboratory study

• Autorzy: Denine S. , Della N. , Muhammed R. D. , Feia S. , Canou J. , Dupla J.-C.

Identyfikatory

DOI

10.1515/sgem-2016-0026

• Języki publikacji: EN

Abstrakty

EN

This paper presents results of a series of undrained monotonic compression tests on loose sand reinforced with geotextile mainly to study the effect of confining stress on the mechanical behaviour of geotextile reinforced sand. The triaxial tests were performed on reconstituted specimens of dry natural sand prepared at loose relative density (Dr = 30%) with and without geotextile layers and consolidated to three levels of confining pressures 50, 100 and 200 kPa, where different numbers and different arrangements of reinforcement layers were placed at different heights of the specimens (0, 1 and 2 layers). The behaviour of test specimens was presented and discussed. Test results showed that geotextile inclusion improves the mechanical behaviour of sand, a significant increase in the shear strength and cohesion value is obtained by adding up layers of reinforcement. Also, the results indicate that the strength ratio is more pronounced for samples which were subjected to low value of confining pressure. The obtained results reveal that high value of confining pressure can restrict the sand shear dilatancy and the more effect of reinforcement efficiently.

Słowa kluczowe

EN

sand; behaviour; geotextile; undrained; confining pressure; excess pore pressure; strength ratio

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2016
• Tom: Vol. 38, nr 4
• Strony: 3--13
• Opis fizyczny: Bibliogr. 37 poz., rys. tab.

Twórcy

autor

Denine S.

• Laboratory of Material Science and Environment (LMSE), Hassiba Benbouali University of Chlef – Algeria

autor

Della N.

• Laboratory of Material Science and Environment (LMSE), Hassiba Benbouali University of Chlef – Algeria

autor

Muhammed R. D.

• Laboratory Navier-Géotechnique, Ecole des ponts Paris Tech, France
• Departement of Geotechnical Engineering, Koya University, Danielle Mitterrand Boulevard, Koya KOY45 AB64, Kurdistan Region, F.R. Iraq

autor

Feia S.

• Laboratory Navier-Géotechnique, Ecole des ponts Paris Tech, France

autor

Canou J.

• Laboratory Navier-Géotechnique, Ecole des ponts Paris Tech, France

autor

Dupla J.-C.

• Laboratory Navier-Géotechnique, Ecole des ponts Paris Tech, France

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).