A perching layer with a K value of 0.01 m/day supports a perched ground- water body 1 m high. The perching layer is 0.5 m thick and the downward- flow rate through the perching layer is 0.038 m/day. What is the pressure head at the bottom of the perching layer? Assume that K of the material above the perching layer is so large compared to K of the perching layer itself that the perching water table can be used to indicate the pressure head at the top of the perching layer.
A perching layer with a K value of 0.01 m/day supports a perched ground- water body 1 m high. The perching layer is 0.5 m thick and the downward- flow rate through the perching layer is 0.038 m/day. What is the pressure head at the bottom of the perching layer? Assume that K of the material above the perching layer is so large compared to K of the perching layer itself that the perching water table can be used to indicate the pressure head at the top of the perching layer.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A perching layer with a K value of 0.01 m/day supports a perched ground-
water body 1 m high. The perching layer is 0.5 m thick and the downward-
flow rate through the perching layer is 0.038 m/day. What is the pressure
head at the bottom of the perching layer? Assume that K of the material
above the perching layer is so large compared to K of the perching layer
itself that the perching water table can be used to indicate the pressure
head at the top of the perching layer.
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