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Unformatted text preview: QW ( u a ’ ) 4 B ( h o & h ) S y ’ 4 Ttu a r 2 T ’ QW ( u b ’ ) 4 B ( h o & h ) S y ’ 4 Ttu b r 2 K h ’ T b K v ’ ’ b 2 K h r 2 K’S’ = 16 $ Tb’S/r 2 2 13.3 UNCONFINED AQUIFER FOR EARLY DRAWDOWN FOR LATER DRAWDOWN WHERE: ’ = r K /(K b ) FROM PLOT 2 2 z h b = INIT. SATURATED THICKNESS 13.4 ASSUMPTIONS GENERALLY THE SAME AS FOR DEPUIT AND THEIM EQUATIONS EXCEPT FOR EXISTENCE OF EQUILIBRIUM CONDITIONS 13.5 PARTIAL PENETRATION OF WELLS THEIS SOLUTION GENERALLY VALID WHEN: r > 1.5b(K /K ) h v 1/2 SOLUTION NOT VALID WHEN: r < 1.5b(K /K ) h v 1/2 WHERE: b = INIT. SATURATED THICKNESS...
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 Fall '06
 Larson
 Aquifer, Hydraulic conductivity, Aquifer test, NONEQUILIBRIUM AQUIFER TESTS

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