CE180 (Spring 15)
Homework # 2
Due date: 2/9
Problem 1 (30 points)
A) Classify the following soils using the Unified Soil Classification System. Give the group symbol and
the group name. Neatly and ca
CE180 (Spring 16)
HW#7 Solution Key
Problem 1 (20 Points)
Three direct shear tests are conducted on identical clay samples under different normal loads.
The applied normal stress (), the measured shea
CE180 (Spring 16)
Homework No.1
Solution Key
Problem 1 (20 points)
A sample of saturated silt is 10 cm in diameter and 2.5 cm thick. Its void ratio in this state is 1.35, and the
specific gravity of s
CE180 (Spring 16)
Homework # 3
Problem 1 (30 points)
You are the earthwork construction control inspector and you are checking the field compaction of a layer
of soil. The laboratory compaction curve
CE180 (Spring 15)
HW # 5 Solution Key
Problem 1 (20 points)
For the soil profile shown below, plot the variation of total stress, pore water pressure, and effective stress
with depth. (Assume Gs=2.7)
CE180 (Spring 16)
HW # 4
Problem 1 (20 points)
Determine the total head, elevation head, and pressure head at all points indicated on the figure below (A
through F). Report your results in a table for
CE180 (Spring 16)
HW # 6 solution
Problem 1 (30 points)
A rectangular foundation (8x6 ft) carrying an axial load of 350 Kips is constructed on the soil profile shown
below. Determine:
350 kips
8 ft
dr