There was a download of PYWALL 3.0 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. We recommend checking the downloaded files with any free antivirus. The software is included in Education Tools. The most frequent installer filenames for the software are: pywall2.exe, Pywall2015.exe, Pywall2019.exe and Pywall3.exe etc. The actual developer of the software is Ensoft, Inc. The most popular version of the PYWALL 3.0.
From the developer:
The theoretical concepts used in the PYWALL software extends beyond the conventional method of analysis and design of flexible retaining walls based on limit-equilibrium theory.
As a difference to conventional pratice, the PYWALL method does not ignore the effects of soil-structure interaction.
The new PYWALL introduces the option to perform computation models of staged constructions.
You may want to check out more software, such as Panel, SatCalc or MathMatic, which might be related to PYWALL.