Experimental and Numerical Investigations of Sand Particles Morphological Parameters Influence on Soil Mechanical Properties

Šarūnas Skuodis

Doctoral dissertation

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The dissertation investigates soil morphology parameters influence for mechanical properties with evaluation of examined sand engineering geological conditions. The main objects of research: morphology parameters investigation with view analysis program and SEM; experimental soil compression and direct shear tests; numerical soil compression simulation and results validation with experimental. The primary purpose of this dissertation is to investigate morphology parameters influence for sand mechanical properties and to determin optimal spheres quantity for single particle shape subscription.

The paper approaches a few major tasks such as detecting the experimental and numerical tests validation and compression tests results dependences from changing morphology parameters. The first objective is formulated considering comparatively a small scale similar research works presentation. The second is related to the problem of DEM modeling peculiarities.

The dissertation consists of three parts including introduction, 3 chapters, Conclusions, References.

The introduction reveals the investigated problem, importance of the thesis and the object of research and describes the purpose and tasks of the paper, research methodology, scientific novelty, the practical significance of results examined in the paper and defended statements. The introduction ends in presenting the author’s publications on the subject of the defended dissertation, offering the material of made presentations in conferences and defining the structure of the dissertation.

Chapter 1 revises examined soil types engineering geology conditions, morphology parameters determination with SEM, experimetal and numerical soil testing and used literature. At the end of the chapter, conclusions are drawn and the tasks for the dissertation are reconsidered.

Chapters 2  represents experimental and numerical soil testing research. Suggestions for improvement of soil compression and direct shear testing procedures are given in this chapter.

Chapter 3 represents experimental and numericl soil testing results validation.

19 articles focusing on the subject of the discussed dissertation are published: 4 articles – in the Thomson ISI register, 1 article – in conference material and scientific papers in Thomson ISI data base, 4 articles – in the journal quoted in other data bases, 2 articles – in material reviewed during international conferences. 8 presentations on the subject have been given in conferences at national and international level.

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DOI: https://doi.org/10.20334/2350-M

Book details

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Imprint No:
145×205 mm
142 p.
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