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Reservoir Water and Recharge Volume, Aqueducts Recharge Volume Percentage Determination with The Maillet Formula

Homayoun Moghimi


Shortage of water sources is one of the basic problems to consider especially in dry and semi dry countries of the world. Consequently, it is essential to calculate water sources for further water consumption pattern. In this essay, some aqueducts of Hashtgerd plain were studied and with due attention to obtain data and statistics and their further analysis, discharge-time hydrograph was drawn. From the descending curve equation of aqueducts and the Maillet method, reservoir volume, recharge volume and recharge percentage were determined. The water balance sheets of Hashtgerd plain in 1993-94 and 1996-97 water years were also prepared. The reported precipitation infiltration rate in these balance sheets was approximately 19.06 percent. However, the obtained values of the mentioned rate with the help of Schoeller (1960) and Maillet methods were 22.16 and 21.36, respectively. Regarding the three mentioned methods and having correct information, it can be understood that the Maillet method can be used for aqueducts with a high safety factor. This method can be used for other aqueducts in case its validity is proven.


Aqueduct, Maillet method, reservoir volume, recharges volume, recharge percentage

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