Determine a) effective precipitation depth >) Þ-index c) total infiltrated amount of water
Determine a) effective precipitation depth >) Þ-index c) total infiltrated amount of water
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Problem 1: An infiltrometer test was made on a certain soil and results are tabulated below:
t (min)
10
20
6.45 4.68
f(cm/hr)
0
8.76
5
7.9
30
60
3.59 1.76
Determine
a) effective precipitation depth
b) Þ-index
c) total infiltrated amount of water
In the same area, a storm of 120 min. occurred with the following intensities:
t(min)
0-30
i(mm/hr)
30
90
1.1
30-90
72
90-120
34
120
0.75
150
0.75
(Note: Assume constant infiltration rate for each constant intensity of rainfall interval by taking the averages
of the infiltrometer data.)
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