For a given soil, the following are given: Gs = 2.67; moist unit
weight is 17.61...
For a given soil, the following are given: Gs = 2.67; moist unit
weight is 17.61 kN/m3, and moisture content = 10.8%. Determine the
weight of water, in KN, to be added per cubic meter :
The
weight of a chunk of moist soil sample is 77.6 lb.
The
volume of the soil chunk measured before drying is 0.40 ft3.
After
the sample is dried out in an oven, its weight is 68.8 lb.
The
specific gravity of solids is 2.55.
Find
the:
Water
content.
Unit
weight of moist soil.
Void
ratio.
Porosity.
Degree
of saturation
For a moist soil sample the following are given: Total volume =
1.15 m3 Total mass = 2300 kg Moisture content = 7.4 % Gs = 2.69
Determine the following: 1. Moist unit weight (γwet) 2. Dry unit
weight (γd) 3. Void ratio (e) and Porosity (n) 4. Degree of
saturation (Sr) 5. Volume of water in the soil sample
An organic soil, the void ratio e is found to be 10.0 and GS is .2.35 If this soil is fully saturated, find:a. Unit weight of the soilb. water conten w%c. Does this soil sink in water?
Phase Diagram:
A sample of moist soil was found to have the following
characteristics:
Volume: 0.60 Ft3 (as sampled)
Mass: 60 Lb (as sampled)
Mass: 50 Lb (after oven drying)
Specific Gravity: 2.65
First Question:
Find a-h? (show your work)
Ratio
Porosity
Degree of Saturation
Wet density (total density)
Dry density
Volume of Solid
Volume of Void
Weight of air
A sample of moist soil having a wet mass of 1.0 kg and a volume of
0.64 liter (6.4
´
10-4
m3)
was dried in the oven and found to have a dry mass of 0.8 kg.
Assuming a typical value of particle density of 2650
kg/m3,
calculate the bulk density
rb,
porosity
f,
mass water content
qg,
volumetric water content
qv,
and air-filled porosity
fa.
A very wide embankment with height of 3m and the soil unit
weight 19 kn/m3 to be constructed. Calculate the normal stress,
water pressure and effective stress at two positions: At the middle
of clay, the depth = 5 m and the saturated unit weight = 27 kn/m3,
and at the middle of sand, the depth = 5 and the saturated unit
weight = 21 kn/m3.
For two cases
- Before constructing embankment
-Instantly after constructing the embankment
For a granular soil deposit, γ = 108.8 lb/ft3, w = 8%, Gs =
2.65.
a) Determine the void ratio, e, for this soil.
b) For this soil, it is determined that Dr = 70%. If emin = 0.57,
what is emax for this soil? c) What would be the dry unit weight of
this soil in its loosest state?
d) What would be the dry unit weight of this soil in its densest
state?
Soil collected from the site is found to have γt=18.5kN/m3,w%=8.6%γt=18.5kN/m3,w%=8.6%, and Gs=2.67Gs=2.67. After a heavy rainfall overnight, 10%10% increase in the degree of saturation SrSr was observed. Determine: a. the degree of saturation SrSr of the soil before the rainfallb. the void ratio e of the soil before the rainfallc. The water content w\% after 10%10% increase in Srd. The unit weight γhγh after 10%10% increase in Sr
Moist air (RH = 60%) at 80oF enters an Evaporative
cooling unit as it enters a greenhouse and leaves at 100%
saturation.
How many pounds Water per pound of Air will be required?
Select one:
a. 0.0155 lbs H2O per lb Air
b. 0.002865 lbs H2O per lb Air
c. 0.028656 lbs H2O per lb Air
d. 0.01315 lbs H2O per lb Air
e. 0.002344 lbs H2O per lb Air