Calculate the discharge from a tube well of 20-cm diameter penetrating fully into aconfined aquifer of 20-m thick and having a permeability of 40 m/day. The drawdown in thewell is 3 m and zero drawdown at 300 m from the well. If the diameter of the well is doubled,find the percentage increase in the yield, the other conditions remaining the same. State theassumptions in the formula you use. (1303.7 lpm)

given diameter of wall d1= 20 cm depth of aquifer = 20m k = 40 m/day Sw = 3m

Calculate the discharge from a tube well of 20-cm diameter penetrating fully into a ined aquifer of 20-m thick and having a permeability of 40 m/day. The drawdown in the is 3 m and zero drawdown at 300 m from the well. If the diameter of the well is doubled, the percentage increase in the yield, the other conditions remaining the same. State the mptions in the formula you use. (1303.7 lpm)

Calculate the discharge from a tube well of 20-cm diameter penetrating fully into a ined aquifer of 20-m thick and having a permeability of 40 m/day. The drawdown in the is 3 m and zero drawdown at 300 m from the well. If the diameter of the well is doubled, the percentage increase in the yield, the other conditions remaining the same. State the mptions in the formula you use. (1303.7 lpm)

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter7: Seepage

Section: Chapter Questions

Problem 7.1P

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