Shear modulus of a saturated granular soil derived from resonant-column tests

Povzetek

This paper presents the results of 120 determinations of the shear modulus (G) of a saturated granular soil (20–40 Ottawa sand) in different conditions of relative density (Dr), effective consolidation pressure (σ’ c) and level of torsional excitation (Te). The equipment used was a resonant-column apparatus manufactured by Wykeham Farrance and the tests were performed with relative density values of 20, 40, 60 and 80%, effective consolidation pressures of 50, 100, 150, 200, 250 and 300 kPa, and torsional excitations of 0.025, 0.05, 0.1, 0.2 and 0.4 volts (V), leading to shear strains (γ) between 0.002% and 0.023%. The results led to very simple empirical expressions for the shear modulus as a function of the angular strain for different effective consolidation pressures and void-ratio values.

Ključne besede

resonant column;resonant frequency;shear modulus;relative density;effective consolidation pressure;dynamic shear modulus;

Podatki

Jezik:	Angleški jezik
Leto izida:	2017
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UM FGPA - Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo
UDK:	624.13
COBISS:	302998784
ISSN:	1854-0171
Matična publikacija:	Acta geotechnica Slovenica
Št. ogledov:	977
Št. prenosov:	74
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarni naslov:	Strižni modul zasičene granulirane zemljine iz preizkusa resonančne kolone
Sekundarne ključne besede:	geotehnika;granulirane zemljine;strižni modul;resonančna kolona;efektivni konsolidacijski tok;
URN:	URN:SI:UM:
Vrsta dela (COBISS):	Znanstveno delo
Strani:	str. 32-45
Letnik:	ǂVol. ǂ14
Zvezek:	ǂ[no.] ǂ2
Čas izdaje:	2017
ID:	10941829