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Unformatted text preview: = GRADIENT BY TRACER TESTS: Q = G vn A = KAdh/dl e K = G vn / dh/dl e WHERE: K = CM/SEC G v = AVERAGE VELOCITY CM/SEC n = EFFECTIVE POROSITY e dh/dl = GRADIENT G v = Kdh/n dl x e BY INDUCED STRESS (AQUIFER TEST): EQUILIBRIUM OR STEADY RADIAL FLOW NONEQUILIBRIUM OR UNSTEADY RADIAL FLOW 10.4 CALCULATION OF GRADIENT HORIZONTAL GRADIENT h W dh/dl K THREE POINT PROBLEM VERTICAL GRADIENT 10.5 APPLICATION OF T AND K FLOW PROBLEMS GIVEN: K = 60GPD/FT 2 h = 20 FT W = 200 FT dh/dl = 0.02 SOLUTION: Q = KAdh/dl LEAKAGE PROBLEMS GIVEN: K = 60 GPD/FT 1 2 K = 0.003 GPD/FT 2 2 K = 30 GPD/FT 3 2 b = 80 FT 1 b = 10 ft 2 b = 100 ft 3 dh/dl = 5FT/10FT SOLUTION: Q = KAdh/dl...
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- Fall '06
- Hydrogeology, Aquifer, Hydraulic conductivity, Aquifer test, AQUIFER TRANSMISSIVITY