Check each reinforcement layer from top to bottom. If a layer fails tensile overstress, reduce the vertical spacing or swap in a higher-strength geogrid. If it fails pullout, increase the total length ( Step 5: Export the Design Report
Which design methodology do you need to follow? ( or NCMA ASD ?)
The spreadsheet utilizes classical soil mechanics—typically Coulomb or Rankine theory—to compute active earth pressure coefficients ( Kacap K sub a mse wall design spreadsheet
Calculates whether the reinforcement embedded beyond the internal failure plane has sufficient length ( Lecap L sub e ) to resist being pulled out of the soil. Design Standards: AASHTO LRFD vs. ASD
Checks if the driving moments about the toe exceed the resisting moments. In LRFD, this is verified by ensuring the resultant force falls within the middle third (or fourth) of the base width ( Check each reinforcement layer from top to bottom
Include unit rates and a simple cost estimate section as optional inputs.
for sliding/overturning), adjust the reinforcement length or spacing. Export results for documentation. 5. Conclusion ( or NCMA ASD
Are there any heavy (like traffic or buildings) near the top of the wall?
Calculating the contact pressure at the base of the reinforced zone and comparing it against the allowable bearing capacity of the foundation soil. 3. Internal Stability Analysis Sheet