An artifical recharge pond is located in a sandy area (Kv = 10 m/day; porosity = 30%). The pond covers a large area. A flood wave fills the pond rapidly to a water level of 5.5 meters above the sandy bottom. By controlling the inflow and outflow the water level is maintained at this elevation. During previous operations, the bottom of the pond was covered by a layer of fine material 0.5 meters thick with Kv = 0.1 m/day and a porosity of 50%. Assuming infiltration is vertically downward only, determine the position of the wetting front from the recharge pond into an initially dry soil as a function of time (derive an equation). Assume a very deep water table. What is the infiltration after a long time?
An artifical recharge pond is located in a sandy area (Kv = 10 m/day; porosity = 30%). The pond covers a large area. A flood wave fills the pond rapidly to a water level of 5.5 meters above the sandy bottom. By controlling the inflow and outflow the water level is maintained at this elevation. During previous operations, the bottom of the pond was covered by a layer of fine material 0.5 meters thick with Kv = 0.1 m/day and a porosity of 50%. Assuming infiltration is vertically downward only, determine the position of the wetting front from the recharge pond into an initially dry soil as a function of time (derive an equation). Assume a very deep water table. What is the infiltration after a long time?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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What is infiltration after a long time? and also, derive an equation to determine the position of the wetting front from the recharge pond into an initially dry soil as a function of time.
Transcribed Image Text:An artifical recharge pond is located in a sandy area (Kv = 10 m/day; porosity = 30%). The pond covers a large area. A flood wave fills the pond rapidly to a water level of 5.5
meters above the sandy bottom. By controlling the inflow and outflow the water level is maintained at this elevation. During previous operations, the bottom of the pond
was covered by a layer of fine material 0.5 meters thick with Kv = 0.1 m/day and a porosity of 50%.
Assuming infiltration is vertically downward only, determine the position of the wetting front from the recharge pond into an initially dry soil as a function of time (derive an
equation). Assume a very deep water table. What is the infiltration after a long time?
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