Q19) In a drainage system of (0.2m in diameter), the depth of pipe drain is 1.5m below the ground surface; the drain is over on impervious layer about 9.0m, and the average annual rainfall in the area is 850 mm, and occurs between October and April. If the maximum permissible depth of groundwater table (WT) to be kept of 1.Om below the ground surface by draining 25% of annual rainfall by 24 hours. In addition to the excess water from irrigation requirements of 20mm/day that should also be drained. Determine the spacing between drains. The coefficient of permeability maybe taken as 0.0012 * .cm/sec Use L=20.0 m O Use L=60.0 m Use L=80.0 m Use L=75.0 m
Q19) In a drainage system of (0.2m in diameter), the depth of pipe drain is 1.5m below the ground surface; the drain is over on impervious layer about 9.0m, and the average annual rainfall in the area is 850 mm, and occurs between October and April. If the maximum permissible depth of groundwater table (WT) to be kept of 1.Om below the ground surface by draining 25% of annual rainfall by 24 hours. In addition to the excess water from irrigation requirements of 20mm/day that should also be drained. Determine the spacing between drains. The coefficient of permeability maybe taken as 0.0012 * .cm/sec Use L=20.0 m O Use L=60.0 m Use L=80.0 m Use L=75.0 m
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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