A 15 mm rainfall is recorded over a small catchment according to the table below. Infiltration tests in the area have given the following Horton equation parameters: fo= 27 mm/hr; fc = 6 mm/hr; k= 3.5 hr. Time (hr) Rainfall intensity (mm/hr) 0.00-0.25 40 0.25-0.50 3 0.50-0.75 12 0.75-1.00 16 (a) Calculate the infiltration capacity as a function of time. It is assumed that the soil surface is always ponded with water. (b) Can the Horton equation be applied to calculate infiltration for thisrainfall event?
A 15 mm rainfall is recorded over a small catchment according to the table below. Infiltration tests in the area have given the following Horton equation parameters: fo= 27 mm/hr; fc = 6 mm/hr; k= 3.5 hr. Time (hr) Rainfall intensity (mm/hr) 0.00-0.25 40 0.25-0.50 3 0.50-0.75 12 0.75-1.00 16 (a) Calculate the infiltration capacity as a function of time. It is assumed that the soil surface is always ponded with water. (b) Can the Horton equation be applied to calculate infiltration for thisrainfall event?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A 15 mm rainfall is recorded over a small catchment according to the table below.
Infiltration tests in the area have given the following Horton equation parameters:
fo= 27 mm/hr; fc = 6 mm/hr; k= 3.5 hr.
Time (hr) Rainfall intensity (mm/hr)
0.00-0.25 40
0.25-0.50 3
0.50-0.75 12
0.75-1.00 16
(a) Calculate the infiltration capacity as a function of time. It is assumed that the soil
surface is always ponded with water.
(b) Can the Horton equation be applied to calculate infiltration for thisrainfall event?
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