Title: Determination of Confined Aquifer Parameters by Sushil K. Singh Method
Abstract:For the evaluation of confined aquifer parameters, namely, transmissivity T, storage coefficient S and hydrological boundaries, from pump-test data a simple method by Sushil K. Singh has been presente...For the evaluation of confined aquifer parameters, namely, transmissivity T, storage coefficient S and hydrological boundaries, from pump-test data a simple method by Sushil K. Singh has been presented. The method does not require curve matching, initial guess of the parameters,etc.,. Early drawdown data, for which the argument u of the well function is >0.01, have often been considered unimportant in evaluating aquifer parameters. This paper shows that these early drawdown data, especially in the neighborhood of u= 0.43, can yield accurate values of aquifer parameters. Using the present method the confined aquifer parameter of Darlaman Sub-Basin of Kabul Basin is estimated in only one point. The transmissivity of confined aquifer of Darlaman is estimated about 94.76m^/day and the storage coefficient is 0.00241. The reliability of these values is judged by calculation of the Standard Error of Estimate (SEE) considering variations of observed and computed drawdown for early as well as late drawdown data. As the confined aquifer of Kabul basin is like fossil there is no leakage between confined and unconfined is reported and also there is no recharge boundary is available (JICA). The hydrological impervious boundary of the aquifer is not determined because of location of the observation and pumped wells far from the boundary and no well is located near to the boundary.Read More
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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Cited By Count: 6
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