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600 m3/day of water is to be obtained from a proposed infiltration gallery, which is placed at 6m depth from sub-surface water-table. the coefficient of permeability of the soil aquifer is 100 m/day. find the length of the gallery if the drawdown in the gallery on pumping is not to exceed 4 m. the radius of influence may be assumed to be 100m.?
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600 m3/day of water is to be obtained from a proposed infiltration gal...
Given data:
- Water requirement: 600 m3/day
- Coefficient of permeability: 100 m/day
- Drawdown limit: 4 m
- Radius of influence: 100 m

Calculations:
- Total flow rate through the infiltration gallery = 600 m3/day = 600/24 m3/hour = 25 m3/hour
- The area of influence can be calculated using the formula: A = π x R2, where R is the radius of influence (100 m)
- A = π x 1002 = 31415.93 m2
- The flow rate per unit width of the gallery can be calculated using the formula: Q = k x A x h, where k is the coefficient of permeability (100 m/day), A is the area of influence (31415.93 m2), and h is the drawdown limit (4 m)
- 25 = 100 x 31415.93 x 4 x L, where L is the length of the gallery
- Solving for L, L = 25 / (100 x 31415.93 x 4) = 0.0000199 m = 0.0199 mm

Answer:
The length of the infiltration gallery should be approximately 0.0199 mm to meet the water requirement without exceeding the drawdown limit.
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600 m3/day of water is to be obtained from a proposed infiltration gallery, which is placed at 6m depth from sub-surface water-table. the coefficient of permeability of the soil aquifer is 100 m/day. find the length of the gallery if the drawdown in the gallery on pumping is not to exceed 4 m. the radius of influence may be assumed to be 100m.?
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600 m3/day of water is to be obtained from a proposed infiltration gallery, which is placed at 6m depth from sub-surface water-table. the coefficient of permeability of the soil aquifer is 100 m/day. find the length of the gallery if the drawdown in the gallery on pumping is not to exceed 4 m. the radius of influence may be assumed to be 100m.? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about 600 m3/day of water is to be obtained from a proposed infiltration gallery, which is placed at 6m depth from sub-surface water-table. the coefficient of permeability of the soil aquifer is 100 m/day. find the length of the gallery if the drawdown in the gallery on pumping is not to exceed 4 m. the radius of influence may be assumed to be 100m.? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 600 m3/day of water is to be obtained from a proposed infiltration gallery, which is placed at 6m depth from sub-surface water-table. the coefficient of permeability of the soil aquifer is 100 m/day. find the length of the gallery if the drawdown in the gallery on pumping is not to exceed 4 m. the radius of influence may be assumed to be 100m.?.
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