In a border-irrigation-system, the following information is given The border length is 300 m - The border width is 5 m -Qin = 18.6 l/s - Slope is 0.7% -Manning's n = 0.2 The infiltration equation is D = 506, D in mm and t in minutes The data are shown in the following table Distance 0 30 60 90 120 150 180 210 240 270 300 15 25 34 48 65 80° 96 Advance 06 time (m) Recession 95 98 102 110 117 125 140 152 167 time (m) "means that the irrigation gates have been closed at this time. If the net depth of irrigation (NDI) IS 70 mm, find the irrigation adequacy? 119 160 174 200
In a border-irrigation-system, the following information is given The border length is 300 m - The border width is 5 m -Qin = 18.6 l/s - Slope is 0.7% -Manning's n = 0.2 The infiltration equation is D = 506, D in mm and t in minutes The data are shown in the following table Distance 0 30 60 90 120 150 180 210 240 270 300 15 25 34 48 65 80° 96 Advance 06 time (m) Recession 95 98 102 110 117 125 140 152 167 time (m) "means that the irrigation gates have been closed at this time. If the net depth of irrigation (NDI) IS 70 mm, find the irrigation adequacy? 119 160 174 200
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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In a border-irrigation-system, the following information is given
The border length is 300 m
- The border width is 5 m
-Qin = 18.6 l/s
- Slope is 0.7%
-
(1
Manning's n = 0.2
The infiltration equation is D = 50.6, D in mm and t in minutes
The data are shown in the following table
Distance 0 30
(m)
Advance 06
time (m)
Recession 95 98
time (m)
☆
60
15
|||
90 120 150 180
25 34 48 65 80*
*means that the irrigation gates have been closed at this time.
If the net depth of irrigation (NDI) IS 70 mm, find the irrigation adequacy?
102 110 117 125 140
فلاتر
210 240
O
152
96
167
270 300
7
119 160
174 200
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