Soil Formulas Flashcards
1
Q
Void Ratio
A
e = Vv / Vs or e = n / (1 - n)
2
Q
Porosity
A
n = Vv / V or n = e / (1 + e)
3
Q
S
A
S = Vw / Vv % of saturation
4
Q
Specific Gravity of Solids
A
Gs = ( Ws / (Vs*yw) )
5
Q
Water content
A
w = Ww / Ws
6
Q
Air Content
A
A = Va / Vt
7
Q
Possible to have void ration > 1?
A
yes
8
Q
Possible to have porosity n > 1
A
no (vol voids will be less than vol total)
9
Q
Vs
A
Volume of Solids
10
Q
Vw
A
Volume of Water
11
Q
Va
A
Volume of air
12
Q
Vv
A
Volume of Voids (Vv = Vw + Va)
13
Q
Vt
A
Vt = Vv + Vs = Va + Vw + Vs
14
Q
w %
A
w% = Mw / Ms * 100
