HE Breţice is the fifth in a chain of six hydroelectric power plants on the lower Sava.\ud
Approximately 13 km of dikes will have to be built along the left and the right bank of the\ud
Sava river to create an accumulation reservoir. In my degree we examined the possibility to\ud
use locally available sand deposits as the main fill material. The use of sand will represent the\ud
environmentally and economically friendly solution. Because there is no experience in\ud
building dikes from sands in Slovenia and this sand has a reputation of being difficult to build\ud
dikes from, we examined characteristics of sand and estimated its application in dikes. We\ud
examined all index properties of sand, the compactibility, deformability, collapse, shear\ud
strength and permeability. The results of laboratory tests were verified by control\ud
measurements at the experimental dike built of local sands. The analysis of the results showed\ud
that the sand could be used as fill material, however some requirements regarding the\ud
achieved dry density and the use of filters layers to prevent piping must be fulfilled
