FINALS Flashcards
VOID RATIO
e = n / (1-n)
e = Vv / Vs
POROSITY
n = e / (1+e)
n = Vv / V
AIR VOID RATIO
= (e - wGs) / (1+e)
= n (1-s)
DEGREE OF SATURATION
s = Vw / Vv
s = wGs / e
DRY UNIT WEIGHT
γ𝒹 = Gsγ𝓌 / (1+e)
γ𝒹 = Ws / Vᴛ
γ𝒹 = γₘ/(1+w)
γ𝒹 = (Gs+γ𝓌) / (1+Gsw/s)
UNIT WEIGHT OF SOIL
γ = Wᴛ / Vᴛ
MOIST UNIT WEIGHT
γm = γ𝒹 (1+w)
ZERO AIR VOID UNIT WEIGHT
γ𝓏ₑᵣₒ = Gsγ𝓌 / (1+wGs)
MOISTURE CONTENT
w = (Ww-Ws) / Ws
SATURATED UNIT WEIGHT
γₛₐₜ = ((Gs+e)γ𝓌) / (1+e)
SUBMERGED UNIT WEIGHT OR EFFECTIVE UNIT WEIGHT
γ = ((Gs-1)γ𝓌) / (1+e)
MOIST UNIT WEIGHT IN TERMS OF DEGREE OF SATURATED AND VOID RATIO
γ = ((Gs+Se)γ𝓌) / (1+e)
PLASTIC INDEX
PI = LL-PL
LIQUIDITY INDEX
LI = (w -PL) / (LL-PL)
CONSISTENCY INDEX
CI = (LL-w) / (LL-PI)
SHRINKAGE RATIO
SR = m₂ / v₂ρ𝓌
SPECIFIC GRAVITY
Gs = (1/SR - SL/100)⁻¹
SHRINKAGE LIMIT
SL = ((m₁-m₂)/m₂)(100) - ((v₁-v₂)/m₂)ρ𝓌(100)
MOIST UNIT WEIGHT OF COMPACTION
γ = w / Vm
RELATIVE COMPACTION (%)
R% = (γ𝒹(ғɪᴇʟᴅ) / γ𝒹(ᴍᴀx-ʟᴀʙ)) x100
RELATIVE DENSITY
Dr = ((γ𝒹(ғɪᴇʟᴅ) - γ𝒹(ᴍɪɴ))/(γ𝒹(ᴍᴀx)-γ𝒹(ᴍɪɴ))) (γ𝒹(ᴍᴀx)/γ𝒹(ғɪᴇʟᴅ))
RELATIVE COMPACTION
R = Ro / (1 - Dr(1-Ro)