Study of Hydraulic Parameters of Karstic Aquifers in Khorramabad County

Groundwater is one of the most dispersed and most important sources of the earth's crust. The groundwater flow in the karstic rocks is completely different from the movement of this fluid in nonkarstic zones, This flow shows the specific hydrological characteristics of the karstic zones. For the full development of underground water reservoirs, it has to be highly assessed in terms of quantitatively and qualitatively to avoid unnecessary information and assumptions from groundwater, resulting in false usage and reduction. Since karst water resources, large reserves of underground water in different regions of the country, Especially in the study area, it is necessary to be more dynamic and active in the management and preservation of water resources. The purpose of this study was to Assesment of hydraulic parameters of Karstic aquifers in Khorramabad city. In this study, seven regional aquifer Karstic were studied. All of the studied mirages are inundated and exited from carbonate formations. As the aquifers of Robat, Motahari, Golestan, Gerdab Sangi, Changhai (Niloofar), Nawekash, and Dureh Karst Formation has been developed; and kyo aquifer, despite the fact that it has the most drainage, is located in less developed formations. By comparing dynamic storage and annual discharge volumes, Because the dynamic storage volume of the Mirage Kyo, Gerdab sangi, Robat and Dureh is less than the annual evacuation volume, if the wells are dug in the limestone formation of the aquifer and then exploited, the springs will not be able to drain at the peak of consumption. Therefore, it is suggested that this should be avoided as much as possible. Given that the duration of the dynamic storage of the Mirage Kyo is low, the Gerdab sangi is small and the type of mirage is also non-permanent. It is suggested that these mirages should not be used for development projects when the aquifer Recharge is cut off.