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60 Cards in this Set
- Front
- Back
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What is the Void Ratio |
e = Vv/Vs |
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What is Porosity |
n = Vv/Vt |
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What is the degree of Saturation |
S = Vw/Vv (100) |
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Can the Void Ratio Exceed one |
No |
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What is the Alternate Void Ratio Formula |
e + 1 = Vt/Vs |
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Can Porosity be Greater than one |
No Porosity cannot be greater than one |
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Can the Degree of Saturation be Greater than 100% |
No |
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What is the Water Content Formula |
WC = Ww/Ws * 100 |
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What is the alternate Water Content Formula |
WC + 1 = Wt/Ws * 100 |
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Can the Water Content exceed 100% |
Yes |
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What is the Specific Gravity |
It is the ratio of unit weight |
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What is the formula for Specific Gravity |
Gs = Ws/(Vs*Density of Water) |
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What is the typical range for the Specific Gravity |
2.65 and 2.75 |
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What is the unit weight of water |
62.4 lb/ft^3, 9.81 kn/m^3, 9.8 kg/m^3, 1 gram/cc |
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How many grams in a pound |
453.6 |
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What is the wet or moist unit weight equation |
Moist Unit Weight = Wt/Vt |
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What is the Dry Unit Weight Equation |
Dry Unit Weight = Ws/Vt |
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What is the alternate Dry Unit Weight Equation |
Dry Unit Weight = Moist Unit Weight/(1 + WC) |
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What is the Opening Size of a Number 4 Sieve |
4.75 |
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What is the Opening Size of a Number 5 Sieve
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4.00 |
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What is the Opening Size of a Number 6 Sieve
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3.35 |
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What is the Opening Size of a Number 7 Sieve
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2.80 |
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What is the Opening Size of a Number 8 Sieve
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10 |
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What is the Opening Size of a Number 10 Sieve
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2.00 |
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What is the Opening Size of a Number 12 Sieve
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1.70 |
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What is the Opening Size of a Number 14 Sieve
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1.40 |
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What is the Opening Size of a Number 16 Sieve
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1.18 |
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What is the Opening Size of a Number 18 Sieve
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1.00 |
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What is the Opening Size of a Number 20 Sieve
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0.850 |
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What is the Opening Size of a Number 25 Sieve
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0.710 |
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What is the Opening Size of a Number 30 Sieve
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0.60 |
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What is the Opening Size of a Number 35 Sieve
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.5 |
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What is the Opening Size of a Number 40 Sieve
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.425 |
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What is the Opening Size of a Number 50 Sieve
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.355 |
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What is the Opening Size of a Number 60 Sieve
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.25 |
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What is the Opening Size of a Number 70 Sieve
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.212 |
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What is the Opening Size of a Number 80 Sieve
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.18 |
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What is the Opening Size of a Number 100 Sieve
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.15 |
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What is the Opening Size of a Number 120 Sieve
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.125 |
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What is the Opening Size of a Number 140 Sieve
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.106 |
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What is the Opening Size of a Number 170 Sieve
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.09 |
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What is the Opening Size of a Number 200 Sieve
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.075 |
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What is the Opening Size of a Number 270 Sieve
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.053 |
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What is the Uniformity Coefficient Equation |
Cu= D60/D10 |
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What is the Coefficient of Gradation Equation |
Cc=D30^2 / (D60*D10) |
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What is the interpolation equation |
(X-X1)/(X2-X1) = (Y-Y1)/(Y2-Y1) |
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What is the Coefficient of Gradation range for well graded soils |
1 to 3 |
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What is the Uniformity Coefficient range for gravels |
Greater than 4 |
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What is the Uniformity Coefficient range for Sand |
Greater than 6 |
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What are the 4 primary shapes of rocks |
Round, Subrounded Angular, Subangular |
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What type of soils are Coarse Textured |
Gravels and Sands |
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What type of soils are Fine Graded |
Silts and Clays |
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What does heterogeneous mean |
A heterogeneous mixture is non-uniform; that is, it's not the same throughout the entire mixture and the different parts can be seen
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What does it mean to be nonlinear |
Nonlinear implies that there is no straight line equation for the shear and stress of a soil |
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What does it mean to be anisotropic |
having a physical property that has a different value when measured in different directions
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Does Soil have a memory |
Yes it does. |
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What are Soil Mechanics |
The physical and index properties, water movement, stress-strain-stress-deformation, lab test,s and field exploration |
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Who was Karl Terzaghi |
The father of soil mechanics |
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What did Terzaghi develop |
Effective Stress concept |
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What is Geotechnical Engineering |
application of soil mechanic principles to design foundation systems |
