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Unformatted text preview: xxi SYMBOLS Symbol Description Units A Hamakers constant N m A area; crosssectional area m 2 A projection of crosssectional area m 2 A n atmospheric amplitude constant a SWCC modeling constant a shear strength parameter kPa B footing width m B 2 , B 3 viral coefficient for osmotic pressure C molar concentration of solute mol/L or mol/m 3 C ( h ) specific moisture capacity as function of head 1/m C n air pressure amplitude kPa C r SWCC modeling constant Dimensionless C ( ) specific moisture capacity as function of suction 1/kPa C ( ) SWCC modeling correction function Dimensionless c cohesion kPa c effective cohesion kPa c capillary cohesion kPa D diameter of sphere m D footing depth m D electric displacement C/m 2 D diffusivity m 2 /s xxii SYMBOLS D v diffusion coefficient for water vapor m 2 /s D diffusion coefficient for free air m 2 /s D 10 10% finer particle diameter m D 50 50% finer particle diameter m d thickness of boundary layer at air water interface m d diameter of capillary tube m d representative pore size; pore diameter m d sc maximum pore diameter in simple cubic packing m d th maximum pore diameter in tetrahedral close packing m E free energy per unit mass N m/kg E Youngs modulus kPa e void ratio Dimensionless e max void ratio in loosest state Dimensionless e min void ratio in densest state Dimensionless F resultant force; reaction force N van der Waals potential factor Dimensionless G dimensionless deformability variable for earth pressure Dimensionless G s specific gravity of soil solids Dimensionless g gravimetric acceleration m/s 2 H i mass coefficient of solubility for gaseous species i kg/kg H v absolute humidity of solution kg/m 3 H v ,sat absolute humidity of free water kg/m 3 h suction head (absolute value of matric suction head) m h a airentry head m h avg average suction head m h c maximum height of capillary rise m h e elevation head m h i suction head at wetting front m h i volumetric coefficient of solubility for gaseous species i L/L h m matric suction head (negative suction head) m h o osmotic suction head m h p pressure head m h t total head m h suction head behind wetting front m i hydraulic gradient Dimensionless i, j, m, s series indices Dimensionless SYMBOLS xxiii K intrinsic permeability...
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This note was uploaded on 12/30/2011 for the course CIV 7004 taught by Professor Cetin during the Spring '11 term at Auckland.
 Spring '11
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