Characteristics of the Arzangarzan Dam\'s Non-Destructive Testing Strategy to Prevent Siltation

The study addresses non-destructive testing strategies for preventing the Arzangarzan dam from silting up in future. The results of the solution to the Arzangarzan dam's silting issue are shown in this article, allowing runoff regions to manage their water resources more sensibly. Future sediment changes are predicted taking into account the dam's increased overgrowth, additional channel processing, a decline in afforestation, and an increase in cultivated land in the downstream regions. The primary strategies for enhancing the flow of sediment into the dead volume bowl are examined, and methods for resolving the siltation issue by clearing the flooded channels are suggested. This method is employed in dams (reservoirs) with flow because its fundamental principle is that suspended sediments are carried into the bowl of the "dead" volume of the dam by the water flow, while silt sediments are agitated with the assistance of a floating dredger equipped with water jets, preventing pulp from being drawn into the dredger. It should be mentioned that the primary factor used to identify boundaries in georadar studies of clay and loam soils is moisture content. In our situation, the electrical resistance of the soils was much decreased by the slightly mineralized water and filtration; as a result, the lithological composition can only be separated on the major lithological differences. With soil moisture levels above 30–45% and high mineralization in soils that have a low resistance, the study was conducted at a maximum depth of 4-6 meters.