Comparison of geoelectric sections of underground dams in low water and desert areas (Case study: Ravar underground dam in Kerman province(

In this study, 35 sondages were carried out in the reservoir and axis of Ravar underground dam, as well as the depth of the bed stone and the topography was determined using geoelectric data. The results showed that A section represents a two-layer model and the upper layer is the alluvial layer. B section also represents a two-layer model. The thickness of alluvial layer varies between 6 meters at the S29 to 15 m at the S8 sondage site. The C section also represents a two-layer model. The thickness of alluvial layer varies between 5 meters at the S28 to 11 m at the S7 sondage site. The alluvial thickness during the H section is low and the bed stone is marl type and around the S28 sondage site is probably conglomerate type. Simultaneous investigation of geoelectric sections shows that in terms of strait width and alluvial thickness, the proposed axis for underground dam construction has been chosen in a suitable location.