Advanced Soil Mechanics

Study Materials

MEASURABLE QUANTITIES	COMMON AND SI UNITS
Length	in x 25.40 = mm mil x 10-3 = in ft x 0.3048 = m yd x 3 = ft Angstrom x 10-4 = µm Angstrom x 0.1 = nm
Area	hectare x 104 =m2 \nacre x 43560 = ft2
Volume	ft3  x 1728 = in.3 ft3  x  0.02832 = m3 yd3 x 0.7646 = m3 gal x 3.785 = liter = 10-3m3 ounce (U.S. fluid) x 29.57 = cm3
Mass	lb x 0.4536 = kg U.S. ton x 907.2 = kg
Force [N = (kg) (g = 9.807 m2/s)]	kip x 1000 = lbf bf  x 4.448 = N U.S. ton x 2000 = lbf kgf x 9.81 = N metric ton x 9.81 = kN dyne x 10-5 = N
Unit Weight	γw = 1.00 TCM =g/cm3 γw = 62.4 pcf γw = 9.81 kN/m3 pcf x 0.1571 = kN/m3
Energy	joule (J) = N . m ft . lbf x 1.356 = J cal x 4.187 = J erg = dyne . cm erg x 10-7 = J
Pressure (Common)	atm = 760 mm of Hg atm x 1.0332 = kgf/cm2 psi x 144 = psf ksf x 1000 = psf TSF x 2000 = psf kgf/cm2 x 2048 = psf kgf/cm2 x 10 = TSM TSM x 204.8 = psf dyne/cm2 x 10-6 = bar
Pressure (Pa = N/m2)	bar = 100 kPa atm x 101.3 = kPa psi x 6.895 = kPa psf x 47.88 = Pa ksf x 47.88 = kPa TSF x 95.76 = kPa kgf/cm2 x 98.07 = kPa; x 2.048 = ksf TSM x 9.807 = kPa dyne/cm2 x 0.1 = Pa
Coefficient of Permeability	cm/s x 864 = m/day cm/s x 2835 = ft/day ft/day x 0.3048 = m/day
Coefficient of Consolidation	cm2/s x 8.64 = m2/day cm2/s x 93.0 = ft2/day in2/min x 0.929 = m2/day in2/min x 10  = ft2/day ft2/day x 0.0929 = m2/day
Power	watt = J/s
Temperature	oC/100 = (oF - 32)/180