Q3 Flashcards
(14 cards)
1
Q
What scenarios are there no wall adhesion?
A
interaction between sand and wall
2
Q
when do you use total stress analysis?
A
- UU triaxial test done
Unconsolidated, undrained conditions
soil has no dependency on effective stress
radius = Cu = intercept
- In short term clay ONLY
- excavation
3
Q
Label the formula sheet
A
4
Q
when do you use effective stress analysis?
A
-long term clay + sand
- permanently
5
Q
rules for b > or < (da/2)
A
b < da/2
- Times by b^2
- Pp/ FOS = Pa + T
-Don’t start depth at 0m for active/passive anchor plate calcs - Diagram has ground surface included
b > da/2
- Times by (b)(da)
- Pp/ FOS +T = Pa
- start depth at 0m for active/passive anchor plate calcs
- Diagram doesn’t have ground surface included
6
Q
EX 20-21
X = 15
Clay Cu = 100 kPa
A
7
Q
EX 22-23
X = 5
SAND: theta’ = 27.32
unit weight of sand = 16
unit weight of clay = 21
Cu of clay = 52.5 kPa
A
8
Q
A
9
Q
A
10
Q
A
11
Q
A
12
Q
A
13
Q
A
14
Q
A
