Aquifer area extent 100 km/sq is overlain by 4 strata as given below: Strata 1 (top): Thickness = 1, Kx (m/day) = 1, Ky (m/day) = 0.25 Strata 2: Thickness = 3, Kx (m/day) = 2, Ky (m/day) = 0.3 Strata 3: Thickness = 2, Kx (m/day) = 1.5, Ky (m/day) = 0.2 Strata 4: Thickness = 4, Kx (m/day) = 0.025, Ky (m/day) = 0.005 (1) If a 4 hour storm occurs producing a total rainfall of 100mm, estimate the recharge into the aquifer assuming the piezometric surface in the aquifer is at the bottom layer 4 and all layers are saturated. (2) If the 4 layers are underlain by an impermeable strata instead of aquifer. Estimate the lateral flow per unit weight through the layers ASSUMING that the layer is deep by 0.1%
Aquifer area extent 100 km/sq is overlain by 4 strata as given below: Strata 1 (top): Thickness = 1, Kx (m/day) = 1, Ky (m/day) = 0.25 Strata 2: Thickness = 3, Kx (m/day) = 2, Ky (m/day) = 0.3 Strata 3: Thickness = 2, Kx (m/day) = 1.5, Ky (m/day) = 0.2 Strata 4: Thickness = 4, Kx (m/day) = 0.025, Ky (m/day) = 0.005 (1) If a 4 hour storm occurs producing a total rainfall of 100mm, estimate the recharge into the aquifer assuming the piezometric surface in the aquifer is at the bottom layer 4 and all layers are saturated. (2) If the 4 layers are underlain by an impermeable strata instead of aquifer. Estimate the lateral flow per unit weight through the layers ASSUMING that the layer is deep by 0.1%
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Aquifer area extent 100 km/sq is overlain by 4 strata as given below:
Strata 1 (top): Thickness = 1, Kx (m/day) = 1, Ky (m/day) = 0.25
Strata 2: Thickness = 3, Kx (m/day) = 2, Ky (m/day) = 0.3
Strata 3: Thickness = 2, Kx (m/day) = 1.5, Ky (m/day) = 0.2
Strata 4: Thickness = 4, Kx (m/day) = 0.025, Ky (m/day) = 0.005
(1) If a 4 hour storm occurs producing a total rainfall of 100mm, estimate the recharge into the aquifer assuming the piezometric surface in the aquifer is at the bottom layer 4 and all layers are saturated.
(2) If the 4 layers are underlain by an impermeable strata instead of aquifer. Estimate the lateral flow per unit weight through the layers ASSUMING that the layer is deep by 0.1%
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