



Calculate Minimum Dimensions For Concrete Cantilever
Retaining Wall Trial Design Section: 
Use this calculation to come up with the minimum dimensions for the trial design
section. Then proceed with the design validation calculations. 

Calculation: 

Designer/Checker: 



Input: 




(Note: All input Metric units are converted to English units
for the equations below and then the output English units are converted back to
Metric) 












Factor of safety against overturning (FS  typically 1.5 for granular soils and
2.0 for cohesive soils) 

Height of retaining wall (H  ft or m) 

Density of soil (d  pcf or kg/m^3) 

Calculated overturning moment per unit length of wall (Ma  lbft/ft or Nm/m) 











Output: 


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Resisting moment at heel, MR =


Required length of heel, HL = 

Trial Width of Base, (based on backfill soil and wall height or
proportioned as toe is 1/3 Heel Length), B = 

Assume: Trial Base and Trial Stem Thickness = 12 in. 








