CVEN 365
Instructor: Dr. Minsu Cha
Solution - Quiz 2
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1) The data from a standard Proctor test are shown in the table below. Calculate the dry unit
weight (Q1), dry unit weight at zero air void (Q2), and degree of satura

CVEN 365
Instructor: Dr. Minsu Cha
Solution - Quiz 1
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The figure below shows the grain size distribution of four soils A, B, C and D. The plastic
limit and liquid limit of the fines are as follows.
Soil
A
B
C
D
LL
58
42

CVEN 365
Instructor: Dr. Minsu Cha
Quiz 3 - Solution
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1) Find normal (CD) and shear (CD) stresses on plane CD using the pole method. Indicate solution on
your Mohr circle as well as extract approximate values from your d

CVEN 365
Solution - Assignment 6
Instructor: Dr. Minsu Cha
1) (15 pts) A consolidated-drained triaxial test was conducted on a normally consolidated clay. The
results are as follows:
3=276 kN/m2
(d)f= 276 kN/m2
a.
b.
c.
d.
Angle of friction, '
Angle that

CVEN 365
Solution - Assignment 5
Instructor: Dr. Minsu Cha
1) The stresses on an element are shown below. Find the magnitude and direction of the major and minor
principal stresses using the Pole method (indicate solution on your Mohr circle as well as ex

CVEN 365
Solution - Assignment 4
Instructor: Dr. Minsu Cha
1) A flownet is a graphical representation of a flow field that satisfies Laplaces equation. Describe
criteria and recommendations for flownet sketching (10 pts)
Example solution:
The most importa

CVEN 365
Solution - Assignment 1
Instructor: Dr. Minsu Cha
1) Identify 5-10 cases of geotechnical engineering work around you, and briefly explain about them
(15 pts).
2) Why are site investigations important in geotechnical engineering projects (10 pts)

CVEN 365
Solution - Assignment 2
Instructor: Dr. Minsu Cha
1) In the natural state, a moist soil has a volume of 0.3 m3 and weighs 5500 N. The oven dry weight of
the soil is 4911 N. If Gs = 2.74, calculate the moisture content, moist unit weight (total un

CVEN 365
Solution - Assignment 3
Instructor: Dr. Minsu Cha
1) For a constant head laboratory permeability test on
a fine sand, the following values are given:
Length of specimen, L = 300 mm
Diameter of specimen = 150 mm
Head difference, h = 500 mm
Water c