Within the backfill of a retaining wall, there is a key strain in an element of united ground.
A. Vertical if the soil is in active condition of plastic balance
B. vertical if the soil is in the idle state of the plastic balance
C. is inclined at 45 degree vertical plane
D. None of the above
Answer:A
Within the backfill of a retaining wall, there is a key strain in an element of united ground.
A. Vertical if the soil is in active condition of plastic balance B. vertical if the soil is in the idle state of the plastic balance C. is inclined at 45 degree vertical plane D. None of the above