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Unformatted text preview: and since qz = vzdA = vzdxdy ( dV) dV then dqz = _zdz dxdy = _zdxdydz dZ dZ if volume = V dV then dqz =-at if velocity = v then dv z = (~z dZ) q dx I I I I I I )-------, , , , dz av dV and therefore _zdxdydz =- -(1 ) dZ dt recall Darcy's equation qz =-(k ~: dA) or, dividing by dA, v z =-(k ~:) where k is the permeability which is assumed to be constant and since (dh) = _1_(dU) where u is the excess pore pressure due to the applied load dZ 'Yw C3z k (au) then v =---z 'Yw az and substituting into (1) gives ~ a d : U dxdydz = aa V (2) 'Yw Z t...
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This note was uploaded on 02/10/2012 for the course CEG 4012 taught by Professor Staff during the Fall '08 term at University of Florida.
- Fall '08