A farm of 20 hectares is supplied by open field drains. The length of each drain is 600m. If the drainage coefficient is 1.157 * 10-6 m/sec, Root zone depth = 1.5m Capillary rise in soil = 0.3m Coefficient of permeability of soil = 1.5 x 104 m/s Drainage capacity = 0.11 m³/s/km² Depth of impervious stratum below ground = 10.0m Depth of drains below the ground = 2.5 m Find: 1- Discharge at the end of a field drain. 2- Total discharge passed through the collector drain.

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A farm of 20 hectares is supplied by open field drains. The length of each
drain is 600m.
If the drainage coefficient is 1.157 * 10-6 m/sec,
Root zone depth = 1.5m
Capillary rise in soil = 0.3m
Coefficient of permeability of soil = 1.5 × 10 m/s
Drainage capacity = 0.11 m³/s/km²
Depth of impervious stratum below ground = 10.0m
Depth of drains below the ground = 2.5 m
Find:
1- Discharge at the end of a field drain.
2- Total discharge passed through the collector drain.
Transcribed Image Text:A farm of 20 hectares is supplied by open field drains. The length of each drain is 600m. If the drainage coefficient is 1.157 * 10-6 m/sec, Root zone depth = 1.5m Capillary rise in soil = 0.3m Coefficient of permeability of soil = 1.5 × 10 m/s Drainage capacity = 0.11 m³/s/km² Depth of impervious stratum below ground = 10.0m Depth of drains below the ground = 2.5 m Find: 1- Discharge at the end of a field drain. 2- Total discharge passed through the collector drain.
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