The area shown in figure below is provided with a tile drainage system. knowing that: =...

 

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The area shown in figure below is provided with a tile drainage system. knowing that: = 1.5 m. 1-Depth of the drains below land surface 2-Depth of the impermeable layer below land surface =9.5 m. 3-Design root depth 4-Drainage rate 5-Soil permeability = 1.2 m. 600 m = 2 mm/day. = 0.4 m/day. Determine. 1-Choose a suitable spacing and diameter for lateral's 2-Determine the maximum area served by one collector if the available pipe diameters are 20 cm and 25 cm. Field length open drain The area shown in figure below is provided with a tile drainage system. knowing that: = 1.5 m. 1-Depth of the drains below land surface 2-Depth of the impermeable layer below land surface =9.5 m. 3-Design root depth 4-Drainage rate 5-Soil permeability = 1.2 m. 600 m = 2 mm/day. = 0.4 m/day. Determine. 1-Choose a suitable spacing and diameter for lateral's 2-Determine the maximum area served by one collector if the available pipe diameters are 20 cm and 25 cm. Field length open drain