The determination of shear modulus in overconsolidated cohesive soils

• Autorzy: Markowska-Lech K.
• Języki publikacji: EN

Abstrakty

EN

The mechanical behaviour of soils is characterized through constitutive models which require a correct definition of the soil parameters. Prediction of subsoil deformation of geotechnical structures depends on the stiffness-strain curve of the soil and the stiffness at very small strains. Recently, the shear wave velocity measurement using bender elements in laboratory conditions has become a technique which permits to determine the initial shear modulus at strains of the order of 0.0001%. In this paper the criteria for the determination of the shear wave velocity in triaxial tests with piezoelements in cohesive soils have been suggested. The importance of initial signal frequency and optimal range of frequency to measure the shear wave velocity in clays have been discussed. Moreover, the paper presents some results of triaxial tests performed in order to obtain a shear modulus in overconsolidated Pliocene Warsaw clays.

Słowa kluczowe

EN

shear wave; bender elements; shear modulus; stiffness

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Foundations of Civil and Environmental Engineering
• Rocznik: 2008
• Tom: No. 12
• Strony: 61--71
• Opis fizyczny: Bibliogr. 12 poz.

Twórcy

autor

Markowska-Lech K.

• Warsaw University of Life Sciences - SGGW, Poland,

Bibliografia

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