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Analysis of Flow to a Large-Diameter Well During the Recovery Period (1985)

Mishra, G. C. ; Chachadi, A. G.

Oxford, UK : Blackwell Publishing Ltd

Ground water 23 (1985), S. 0

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ISSN: 1745-6584

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Energietechnik , Geologie und Paläontologie

Notizen: Unsteady flow to a large-diameter well in a confined aquifer during recovery has been analyzed by discrete kernel approach. A family of type curves has been presented for different durations of pumping. These type curves provide a fairly accurate means of determining aquifer parameters from data of pump tests conducted in a large-diameter well. The replenishment of well storage at various times has been estimated.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1745-6584.1985.tb01513.x

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Digitale Medien

Recharge from a River of Large Width to a Shallow Water-Table Aquifer (1988)

Mishra, G. C. ; Seth, S. M.

Oxford, UK : Blackwell Publishing Ltd

Ground water 26 (1988), S. 0

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ISSN: 1745-6584

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Energietechnik , Geologie und Paläontologie

Notizen: Using Zhukovsky's function and Schwarz-Christoffel conformal mapping technique, unconfined seepage from a river of large width has been analyzed for a steady-state condition. Seepage quantities occurring through the bed and the bank of the river have been estimated separately. The reach transmissivity constant for a river with large width has been determined. It is found that if the distance between the riverbank and the observation well is more than 0.5 Di, where Di is the saturated thickness of aquifer below the riverbed, the reach transmissivity constant is independent of drawdown at the observation well. The reach transmissivity constant depends on the depth of water in the river and the distance of the observation well from the riverbank.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1745-6584.1988.tb00410.x

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