A frictionless retaining wall has a vertical height of 6 m supporting a backfill. Angle of internal friction of backfill = 25degree . Unit weight of soil is 18.5 kN/m3 . 1. Assuming a non-cohesive soil, compute for the active static force on the wall if it has a horizontal backfill. 2. Compute for the weight of the failure wedge per meter width due to active pressure on the wall. 3. Considering a passive condition, determine the passive resistance against the wall if cohesion of soil is = 20 kPa. 4. Compute the weight of the failure wedge per meter width due to passive pressure on the wall. 5. If the backfill is a sloping backfill with A = 15degree with the horizon- tal, determine the weight of the failure wedge per meter width due to active pressure on the wall. 6. Determine the normal active force on the wall if the backfill is sloping at 15degree from the horizontal.
A frictionless retaining wall has a vertical height of 6 m supporting a backfill. Angle of internal friction of backfill = 25degree
. Unit weight
of soil is 18.5 kN/m3
.
1. Assuming a non-cohesive soil, compute for the active static force
on the wall if it has a horizontal backfill.
2. Compute for the weight of the failure wedge per meter width
due to active pressure on the wall.
3. Considering a passive condition, determine the passive
resistance against the wall if cohesion of soil is = 20 kPa.
4. Compute the weight of the failure wedge per meter width due
to passive pressure on the wall.
5. If the backfill is a sloping backfill with A = 15degree with the horizon-
tal, determine the weight of the failure wedge per meter width
due to active pressure on the wall.
6. Determine the normal active force on the wall if the backfill is
sloping at 15degree
from the horizontal.
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