Engineering geology of Bardat dam (Mersin-Gülnar-Köseçbanli)

Bardat pond is in boundary of Bardat settlement area of Gülnar small town. The pond, where is in topographic map of O-30-a1, is connected Miskale creek away from it and which has been planned that it feed from that creek, is a homogeny earthfill dam having a purpose of irrigation. Engineering geology of Bardat pond area and its around has been researched in this study. Geotechnical properties such as distribution, brokenness, permeability, quality of rocks at the basement body were investigated. Effects of lithological and structural properties on the dam buildings were studied. Index and principal physical properties of material used in impermeable core researched in order to determine if it is appropriate. Stiffness, maximum dry density and optimum water content of the material used in the dam fill were determined by means of compaction and field density tests. According to the experimental studies, stiffness degree is maximum when optimum water content (Wopt) is between %17-20. Discontinuities around the dam site were investigated and it was determined that there is a strike slip fault on the right side of the dam body. Key words: Bardat Dam, maximum stiffness, compaction