A series of steps must be followed to obtain a satisfactory design.
STEP 1: SELECT PRELIMINARY PROPORTIONS OF THE WALL.
STEP 2: DETERMINE LOADS AND EARTH PRESSURES.
STEP 3: CALCULATE MAGNITUDE OF REACTION FORCES ON BASE.
STEP 4: CHECK STABILITY AND SAFETY CRITERIA
a. Location of normal component of reactions.
b. Adequacy of bearing pressure.
c. Safety against sliding.
a. Location of normal component of reactions.
b. Adequacy of bearing pressure.
c. Safety against sliding.
STEP 5: REVISE PROPORTIONS OF WALL AND REPEAT STEPS 2-4 UNTIL
STABILITY CRITERIA IS SATISFIED AND THEN CHECK
a. Settlement within tolerable limits.
b. Safety against deep-seated foundation failure.
STABILITY CRITERIA IS SATISFIED AND THEN CHECK
a. Settlement within tolerable limits.
b. Safety against deep-seated foundation failure.
STEP 6: IF PROPORTIONS BECOME UNRESONABLE,CONSIDER A
FOUNDATION SUPPORTED ON DRIVEN PILES OR DRILLED SHAFTS.
FOUNDATION SUPPORTED ON DRIVEN PILES OR DRILLED SHAFTS.
STEP 7: COMPARE ECONOMICS OF COMPLETED DESIGN WITH OTHER
SYSTEMS.
SYSTEMS.
