Title Investigation of shear strength of sands under cyclic loading /
Translation of Title Smėlio veikiamo ciklinės apkrovos kerpamojo stiprio tyrimas.
Authors Parthiban, Siddeshwaran
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Pages 84
Keywords [eng] cyclic loading ; liquefaction ; settlement ; shear strength ; sand
Abstract [eng] This present research work is based on study of shear strength of sands under statical and dynamical loading condition in a laboratory setting and performed index properties tests on classification and grading of sands as per guidelines of Eurocode 7 and study the influence of applied frequency of a range between 10 to 50 Hz using a vibrating table. The study is mainly experimental so as to understand the cyclic loading effect on sands in a simple shear box apparatus helping to estimate shear strength at failure for statical and dynamic loads. It is proposed to use an alternate approach to study cyclic loading as the present advancements in this research area is still evolving and no definite research framework has been standardised to assess the influence of cyclic loading on sands as a reference for researchers and geotechnical engineers. The purpose is to describe how the sandy soil behaves when subjected to cyclic loading. As mentioned cyclic loading can be caused by environmental loads from wind, transport systems, earthquakes and even human induced loads like explosions. This form of loading will have an effect on soil properties such as soil stiffness, shear strength, and void ratio. It is proposed to also perform settlement analysis using a model footing calibrated to study scaling effect to understand applicability of laboratory results to practical field application like insitu testing and correlation of onsite data. It is also proposed to study liquefaction potential of sands to understand the mechanism of liquefaction using empirical relationships.
Dissertation Institution Kauno technologijos universitetas.
Type Master thesis
Language English
Publication date 2017