APLICACIÓN DE MÉTODOS ANALÍTICOS PARA EL CÁLCULO DE ABATIMIENTOS EN ACUÍFEROS CONFINADOS

Abstract

Two analytical methods are presented to calculate the number and discharge of pum-ping wells for the drawdown of very high piezometric levels. These methods were applied to theconfined aquifer in the Angostura Hydroelectric Project and facilitate a battery of six wells with amean discharge of 27 l/s. The well design includes a well screen of 24 m with a diameter of 0,1 mlocated to a depth between 48 to 52 m. These analytical methods can help to calculate the costs ofwells in dewatering projects and is very useful to prepare cost budgets.The method of big diameter well estimates the number of wells required and the method of dischar-ge can calculate the effective discharge of each well. Both methods operate in electronic sheets andmake the calculations easy.