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DETERMINATION OF SHEAR STRENGTH PARAMETERS OF DAM BODY MATERIAL USING DISTURBED SAMPLING
Session: General Geotechnique and Engineering Geology / Géotechnique générale et géologie de l'ingénieur
Esra Nur Tanriseven, Middle East Technical University, Mining Engineering Department (Turkey)
Hasan A. Bilgin, Middle East Technical University, Mining Engineering Department (Turkey)
Sebnem H. Duzgun, Middle East Technical University, Mining Engineering Department (Turkey)
The determination of shear strength parameters is the most important part of stability analysis of geotechnical structures. Cohesion and internal friction angle obtained from direct shear test are generally referred to as shear strength parameters of soil. Although there are numerous studies on shear testing of undisturbed samples, there are not many about determination of strength parameters from disturbed samples. In this study, shear strength parameters of soil material from a tailings dam, which was constructed without compaction, is evaluated. Because undisturbed sampling is impossible due to coarse grain size and looseness of the dam material, density of the direct shear test sample was determined according to standard compaction test results. Obtained results are compatible with the values given in the literature.
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