- This tool is for analysis of retaining walls with metallic strip reinforcement, as shown in the figure above.
- Two homogenous soil layers are considered in the analysis.
- The Rankine earth pressure theory is used.
- No surcharge is considered in this tool.
- For the backfill, the cohesion c
_{1}is assumed to be zero. - The height of retaining wall H is suggested to be an integral multiple of S
_{V}vertical spacing of ties. - The Extra thickness of tie due to corrosion during life span t
_{cor}can be calculated by corrosion rate times life span of the structure. - All the input parameters should be positive.
- For "nan", "0" or "inf" displayed in Results, please check your input parameters.

**Minimum tie thickness**

t (mm) =

**Minimum tie length**

L (m) =

**Safety factor of overturning**

FS_{O}=

**Safety factor of sliding**

FS_{S}=

**Safety factor of bearing capacity**

FS_{BC}=