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An Experimental Study on the Initial Shear Stiffness in Granular Material under Controlled Multi-Phase Laboratory Conditions

  • The initial shear modulus, Gmax, of soil is an important parameter for a variety of geotechnical design applications. This modulus is typically associated with shear strain levels about 5*10^-3% and below. The critical role of soil stiffness at small-strains in the design and analysis of geotechnical infrastructure is now widely accepted. Gmax is a key parameter in small-strain dynamic analyses such as those to predict soil behavior or soil-structure interaction during earthquake, explosions, machine or traffic vibration where it is necessary to know how the shear modulus degrades from its small-strain value as the level of shear strain increases. Gmax can be equally important for small-strain cyclic situations such as those caused by wind or wave loading and for small-strain static situations as well. Gmax may also be used as an indirect indication of various soil parameters, as it, in many cases, correlates well to other soil properties such as density and sample disturbance. In recent years, a technique using bender elements was developed to investigate the small-strain shear modulus Gmax. The objective of this thesis is to study the initial shear stiffness for various sands with different void ratios, densities, grain size distribution under dry and saturated conditions, then to compare empirical equations to predict Gmax and results from other testing devices with results of bender elements from this study.

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Metadaten
Document Type:Master's Thesis
Author: Milad Asslan
DOI (Cite-Link):https://doi.org/10.25643/bauhaus-universitaet.1584Cite-Link
URN (Cite-Link):https://nbn-resolving.org/urn:nbn:de:gbv:wim2-20120402-15842Cite-Link
Referee:Prof. Dr.-Ing. habil. Carsten KönkeORCiDGND, Prof. Dr.-Ing. habil. Karl Josef WittGND, Dr.-Ing. Frank Wuttke
Advisor:Prof. Dr.-Ing. habil. Carsten KönkeORCiDGND, Prof. Dr.-Ing. habil. Karl Josef WittGND, Dr.-Ing. Frank Wuttke
Language:English
Date of Publication (online):2012/03/28
Year of first Publication:2009
Date of final exam:2009/11/25
Release Date:2012/04/02
Publishing Institution:Bauhaus-Universität Weimar
Granting Institution:Bauhaus-Universität Weimar, Fakultät Bauingenieurwesen
Institutes:Fakultät Bauingenieurwesen / Professur Bodenmechanik
Pagenumber:100
GND Keyword:Soil; Shear modulus; Shear wave; Soil dynamics; Bender elements
Dewey Decimal Classification:600 Technik, Medizin, angewandte Wissenschaften
BKL-Classification:56 Bauwesen
Licence (German):License Logo Copyright All Rights Reserved
Note:
Der Volltext-Zugang wurde im Zusammenhang mit der Klärung urheberrechtlicher Fragen mit sofortiger Wirkung gesperrt.