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Original scientific article

INFLUENCE OF STRESS RATIO IN SHEAR SURFACE ON SHEAR STRENGTH OF DEPOSITED MATERIAL

By
Jasmin Isabegović ,
Jasmin Isabegović
Contact Jasmin Isabegović

Mining Institute Tuzla, Tuzla, Bosnia and Herzegovina

Kenan Mandžić
Kenan Mandžić

Department Mechanics, Geomechanics and Geotechnics, Faculty of Mining, Geology and Civil Engineering, University of Tuzla, Tuzla, Bosnia and Herzegovina

Abstract

The "Ribnica" landfill of the "Vrtlište" surface mine bordered the river Ribnica until during 2017, a landslide was started and the river Ribnica was interrupted, and a water reservoir was formed. After the completion of the tunnel that diverted the river Ribnica, its previously interrupted riverbed in the downstream part is planned for continuation of the disposal of masses from the surface mine "Vrtlište" by making an earth dam. The dam has the role of retaining large waters in case of exceeding the maximum tunnel flow, as well as in cases of monitoring and construction work in the tunnel.

The requirement to use landfill material for the construction of the dam poses a significant risk due to the lack of data on its shear strength. This paper presents the results of research on the shear strength of materials in the conditions of dam construction, under optimal moisture conditions and maximum compaction and analyzes the obtained results, which should define the behavior of the tested materials in the conditions of dam construction. The conducted research represents the first phase of the research, which will be followed by research into the shear strength of completely saturated materials, which will determine the behavior of deposited materials in the dam body and the final slopes.

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 

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